CN102310314B - Processing method of titanium and titanium alloy strip coils - Google Patents
Processing method of titanium and titanium alloy strip coils Download PDFInfo
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- CN102310314B CN102310314B CN 201110183791 CN201110183791A CN102310314B CN 102310314 B CN102310314 B CN 102310314B CN 201110183791 CN201110183791 CN 201110183791 CN 201110183791 A CN201110183791 A CN 201110183791A CN 102310314 B CN102310314 B CN 102310314B
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Abstract
The invention provides a processing method of titanium and titanium alloy strip coils, which comprises the steps of raw material preparation, heating, rolling, annealing, shot blasting treatment, coping, pickling, cold rolling, derosination, annealing, straightening or flattening, edge scraping, and product obtaining. According to the method, existing large steel rolling equipment of various types in the steel processing industry is fully utilized, the defect that no titanium material surface processing and treatment technology exists in the steel processing industry is overcome, the advantages of the steel processing industry are combined with the uniqueness of the titanium material processing industry, and the essential leap of titanium material processing from single plate rolling to long strip rolling plus collection and coiling is completed. By using the method, goods can be delivered in a coiled state as well as a flat plate state, the titanium material processing efficiency is improved, the titanium material processing yield is increased, and conditions are created and high quality raw materials are provided for the processing of titanium welded pipes with various diameters and longer lengths, so high efficiency, energy conservation and economization of titanium material processing are realized.
Description
Technical field
The invention belongs to the process technical field that the titanium or titanium alloy broad titanium roll coil of strip is rolling and Surface Machining is processed.
Background technology
Existing titanium or titanium alloy sheet material is with the rolling form production of veneer, namely adopt less titanium base by small-sized rolling equipment roll into one by one flat board, in annealing under the dull and stereotyped state, next adopts open that the quick-fried method of alkali is carried out surperficial de-scaling, employing pond infusion method pickled surface oxide layer under dull and stereotyped state at dull and stereotyped state, and then cold rolling one-tenth is dull and stereotyped one by one, under dull and stereotyped state, adopt pond infusion method alkali cleaning surface rolling oil, then under dull and stereotyped state, carry out annealing in process.The form of coil rolling only is used for width less than 200mm, weight narrower, the lighter cold rolled titanium roll coil of strip less than 100kg, that is: when roll off is extremely thinner repeatedly through small hot mill the lighter little titanium base of weight, carrying out Surface Machining under dull and stereotyped state processes, then carry out cold rollingly, with artificial method the titanium band is collected rolling at the cold-rolling mill two ends.
The rolling titanium plate of veneer has a lot of limitation, and the one, the side cut amount is large, and lumber recovery is low; The 2nd, once rolling inventory is few, and production efficiency is low; The 3rd, the length of plate is subjected to the restriction of rolling equipment, can not shut out very long sheet material, can't be used for the production of titanium welding pipe.
Summary of the invention
Purpose of the present invention be exactly low for the efficient that solves the rolling existence of veneer, lumber recovery is low, can not production length surpass the problems such as titanium plate of 3m, thereby provide a kind of large-scale rolling equipment of iron and steel processing industry that utilizes to come rolling to produce the long titanium band of upper km, and then the titanium belt surface is processed in rolling processing on special-purpose processing line, finally both can deliver goods by web-like, again a kind of processing method of tabular delivery proportionately.
The objective of the invention is to be achieved through the following technical solutions:
A kind of titanium or titanium alloy roll coil of strip processing method, process is:
1) thickness of raw material titanium slab is 120~230mm, width 600~1600mm, length 5000~12000mm;
2) heating is heated to 700 ℃~1100 ℃ with the titanium slab through gas-fired heater or electric furnace,
3) the titanium slab roll off after rolling employing milling train will heat is processed into the titanium band of thickness 2~16mm and receives wraps up in into web-like, becomes the hot rolling titanium strip coil; Adoptable milling train form comprises: the tandem mill of 5~11 frame continuous rollings, 1 blooming mill add the single chassis steekle mill of 1 stove volume machine, the Stand Mill steekle mill of 2 steekle mills etc.
4) annealing hot rolling titanium strip coil is under the state of volume, and adopting bell type annealing furnace is to carry out annealing in process under the inert gas atmosphere of 300 ℃~700 ℃ helium or argon gas in furnace temperature, becomes annealing hot rolling titanium strip coil;
5) Shot Blasting annealing hot rolling titanium strip coil is opened through the uncoiler of ball blast unit, the oxide skin of titanium belt surface is removed in employing to the method for titanium belt surface ball blast, the abrasion-proof steel ball that is about to diameter 0.3~2.0mm is beaten at the titanium belt surface with the frequency throwing of 20~100Hz, remove the oxide skin of titanium belt surface, the annealing titanium strip coil is changed into the ball blast titanium strip coil, thereby form titanium band ball blast de-scaling method; And then receive through the winder of ball blast unit and to wrap up in into web-like, become the ball blast titanium strip coil; Wherein, thickness comes into the market to sell as final products greater than the titanium strip coil of 10mm, and the raw material as cold rolling process does not continue processing; The titanium strip coil that thickness is not more than 10mm both can be used as final products and has come into the market to sell, and the raw material that also can be used as cold rolling process continues to be processed as thinner specification kind and sells;
6) reconditioning is when needs carry out reconditioning to the ball blast titanium strip coil, this process procedure is implemented, the ball blast titanium strip coil is opened through the uncoiler of reconditioning unit, two lip-deep tiny defect reconditionings are clean up and down with the titanium band to adopt grinding tool, then receive through the winder of reconditioning unit and wrap up in into web-like, become the reconditioning titanium strip coil; When not needing that the ball blast titanium strip coil is carried out reconditioning, the ball blast titanium strip coil directly changes pickling process processing over to;
7) pickling reconditioning titanium strip coil is opened through the uncoiler of pickling unit, adopting concentration is mixed acid and the titanium band generation chemical reaction of the hydrofluoric acid of 10~60g/L and the nitric acid that the degree of depth is 80~320g/L, remove oxide layer and the oxygen-rich layer of titanium belt surface, and then receive through the winder of pickling unit and to wrap up in into web-like, become the pickling titanium strip coil;
8) the cold-rolling pickling titanium strip coil is opened through the uncoiler of reversible cold-rolling unit, the other end is received at the winder of reversible cold-rolling unit and is wrapped up in, middle 4 roller reversible cold-rolling mills or 6 roller reversible cold-rolling mills or 20 roller reversible cold-rolling mills of adopting, with thickness be at normal temperatures 2~10mm the titanium band repeatedly roll off to become thickness be the titanium band of 0.2~4mm, receipts are wrapped up in into web-like, become the cold rolled titanium roll coil of strip; Perhaps: the reconditioning titanium strip coil is opened through the uncoiler of multi-frame continuous rolling mill, with thickness be at normal temperatures the continuous roll off of titanium band of 2~10mm to become thickness be the titanium band of 0.2~4mm, then receive through winder and wrap up in into web-like, become the cold rolled titanium roll coil of strip;
9) the degreasing cold rolled titanium roll coil of strip is opened through the uncoiler of degreasing unit, and employing alkali point is 3%~51% the residual rolling grease of alkali wash removal titanium belt surface, then receives through the winder of degreasing unit and wraps up in into web-like, becomes the degreasing titanium strip coil;
10) annealing degreasing titanium strip coil is under the state of rolling, and adopting bell type annealing furnace is to carry out annealing in process under the inert gas atmosphere of 300 ℃~700 ℃ helium or argon gas in furnace temperature, becomes the annealing cold rolled titanium roll coil of strip;
11) straightening or smooth annealing cold rolled titanium band twist on the withdrawal straightening stands, open by uncoiler, the process withdrawal straightening stands adopts tension straingtening and roll-in aligning to combine or the method for difference leveling is processed the titanium band, correct the waveform of titanium belt surface, make the titanium band obtain straight surface state, become the straightening titanium strip coil, thereby form titanium band straightening method; Perhaps cold rolled annealed titanium strip coil is on withdrawal straightening stands, open by uncoiler, the other end is received by winder and is wrapped up in, the centre applies the certain power of depressing and tension force through 4 roller planishers to the titanium band, the waveform of correcting the titanium belt surface is crooked, makes the titanium band obtain straight surface state, eliminates the lumpy not straight situation that the titanium belt surface exists, and then receive through winder and to wrap up in into web-like, become smooth titanium strip coil;
12) the smooth titanium strip coil of side cut or straightening titanium strip coil are opened through the uncoiler of side cut bundling unit, adopt online circle shears that the limit section of operating titanium band was pruned, excises in uneven whole minute, then receive by winder and wrap up in into web-like, become the finished product titanium strip coil; The rouleau that also can be divided into large volume by customer requirements simultaneously, different length, weight; Titanium strip coil after the side cut according to user's needs, or adopts the crosscut shearing method that the titanium band is cut into the titanium plate of certain-length, by dull and stereotyped delivery; Or adopt longitudinal shearing slitting method that the titanium band is cut into the arrowband of different in width, and receive and wrap up in rolling; Titanium strip coil polishes and light pickling after maybe will cutting edge, by the delivery of albefaction titanium strip coil state;
The present invention's operation of cutting edge comprises:
The smooth titanium strip coil of crosscut or straightening titanium strip coil are opened through the uncoiler of crosscut unit, and the multiroller flattening machine of process crosscut unit further improves the glacing flatness of titanium band, then the method that adopts horizontal flying shear to shear cuts into the titanium band titanium plate of different length, collection platform through the crosscut unit is gathered into buttress with the titanium plate again, becomes the titanium plate;
The smooth titanium strip coil of slitting or straightening titanium strip coil are opened through the uncoiler of slitting line, the method of employing circle shear longitudinal shear cuts into the titanium band titanium band of many different in width along its length, and then receive respectively through the winder of vertical unit and to wrap up in into web-like, become narrow titanium volume;
Polishing and the smooth titanium strip coil of light pickling or straightening titanium strip coil are opened through the uncoiler of the pickling machine group that kicks the beam, adopt the abrasive band of rotating that operating titanium band is polished, and then be that the hydrofluoric acid of 5~50g/L and the mixed acid of the nitric acid that the degree of depth is 40~240g/L carry out light pickling through adopting the degree of depth, make it become the albefaction titanium strip coil.
In the process of the present invention 8 to 10 1~3 time capable of circulation.
The present invention can carry out respective change, combination with the different requirements to final products according to raw material condition in above-mentioned 12 basic step scopes:
If the surface quality of 1 hot rolling titanium strip coil satisfies technological requirement, then can omit the manufacturing procedure of basic working procedure step 6, namely do not need the ball blast titanium strip coil is carried out reconditioning, the ball blast titanium strip coil directly changes pickling process processing over to.
2,8 in the process be to 10, and according to type, the ability of thickness and the cold-rolling mill of raw material, 8~10 will circulate, and titanium strip coil roll off that 1~3 ability will be thicker becomes thinner titanium strip coil, and the combination of manufacturing procedure will be different.Such as: when processing tasks is when the hot rolling titanium strip coil of thickness 3.0mm is processed into the annealing titanium strip coil of thickness 0.5mm, if what process 8 adopted is 20 roller reversible cold-rolling mills, do not need then titanium strip coil is carried out just energy realize target of annealing in process, operation combination at this moment is: " 1-2-3-4-5-6-7-8 "; If but process 8 employings is 4 roller reversible cold-rolling mills, must carry out annealing in process ability realize target 1 time to titanium strip coil then, that is: at first make up the annealing titanium strip coil that " 1-2-3-4-5-6-7-8-9-10 " is processed as the titanium slab thickness 1.5mm by manufacturing procedure, and then through operation combination " 8-9-10 " the annealing titanium strip coil of 1.5mm being processed as the annealing titanium strip coil of 0.5mm, operation combination at this moment is: " 1-2-3-4-5-6-7-8-9-10-8-9-10-11-12 ".
3, adopt different process combinations, just can obtain the product of different conditions, as: what operation combination " 1-2-3 " processing obtained is annealing hot rolling titanium strip coil; What operation combination " 1-2-3-4-6 " processing obtained is annealing and pickling hot rolling titanium strip coil; What operation combination " 1-2-3-4-5-6-7-8-9-10-11 " processing obtained is the skin-pass rolling titanium strip coil; What operation combination " 1-2-3-4-5-6-7-8-9-10-11-12 " processing obtained is skin-pass rolling titanium plate.
The invention has the beneficial effects as follows that this processing method takes full advantage of the existing various types of existing large-scale steel rolling equipments of iron and steel processing industry, has remedied titanium material processing industry and can't realize the deficiency that rolling equipment maximizes because production scale is little; Simultaneously, adopt special titanium strip coil machining processor group that the titanium belt surface is carried out professional treatment, solved the deficiency of iron and steel processing industry without titanium material Surface Machining treatment process, thereby the unique perfect adaptation of the advantage of iron and steel processing industry and titanium material processing industry together, having finished the processing of titanium plate, to be rolled down to bar-shape from veneer rolling and collect the essence leap of rolling.
By the titanium section product of the present invention's processing, both proportionately volume state delivery again can be by dull and stereotyped state delivery; Both improved the processing of titanium material efficient, improved the lumber recovery of titanium material processing, created condition, quality raw materials be provided for the processing of the titanium welding pipe of various bores, length again, thereby realized high efficiency, energy-saving, the economization of the processing of titanium section product.
The present invention is first titanium heating of plate blank to 700 ℃~1100 ℃, adopt the large-sized rolling mills of rolled steel strip, with thickness be the titanium slab of 120~230mm, width 600~1600mm, length 5000~12000mm to be rolled to thickness be the titanium band of 2~16mm and collect rolling, then under the state of rolling, carry out annealing in process; Then on different units, volume is opened respectively, the titanium belt surface is carried out ball blast de-scaling, pickling, cold rolling, degreasing; And then under the state of rolling, anneal; And then through processing such as straightening or smooth, crosscut shear, pickling albefaction, longitudinal shearing slittings, finally select with the state of rolling or with the state delivery of flat board according to user's needs.
Adopt method processing titanium section product of the present invention, not only can improve working (machining) efficiency, improve lumber recovery, but also the high-quality titanium band that can provide for the production of titanium welding pipe length to surpass 2000m, for more favourable condition has been created in the better development of Downstream processing industry.
Further set forth content of the present invention below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is technological process schematic block diagram of the present invention.
The specific embodiment
The titanium band of embodiment one thickness 1.5mm, width 1000mm and the processing method of titanium plate
The present embodiment process is:
1. the thickness of raw material titanium slab is 180mm, width 1050mm, length 10000mm;
2. heating is heated to 950 ℃ with the titanium slab through gas-fired heater;
3. rolling employing Stand Mill steekle mill is processed into titanium slab roll off the titanium band of thickness 3.2mm and receives and wraps up in into web-like, becomes the hot rolling titanium strip coil;
4. annealing hot rolling titanium strip coil is under the state of volume, and adopting bell type annealing furnace is to carry out annealing in process under 550 ℃ the argon gas inert gas atmosphere protection in furnace temperature, makes it become annealing hot rolling titanium strip coil;
5. Shot Blasting annealing hot rolling titanium strip coil is opened through the uncoiler of ball blast unit, the oxide skin of titanium belt surface is removed in employing to the method for titanium belt surface ball blast, the abrasion-proof steel ball that is about to diameter 0.3mm is beaten at the titanium belt surface with the frequency throwing of 30Hz, remove the oxide skin of titanium belt surface, and then receive through the winder of ball blast unit and to wrap up in into web-like, become the ball blast titanium strip coil;
6. reconditioning is when needs carry out reconditioning to the ball blast titanium strip coil, this process procedure is implemented, the ball blast titanium strip coil is opened through the uncoiler of reconditioning unit, two lip-deep tiny defect reconditionings are clean up and down with the titanium band to adopt grinding tool, then receive through the winder of reconditioning unit and wrap up in into web-like, become the reconditioning titanium strip coil; When not needing that the ball blast titanium strip coil is carried out reconditioning, the ball blast titanium strip coil directly changes pickling process processing over to;
7. pickling reconditioning titanium strip coil is opened through the uncoiler of pickling unit, adopting concentration is mixed acid and the titanium band generation chemical reaction of the hydrofluoric acid of 60g/L and the nitric acid that the degree of depth is 80g/L, remove oxide layer and the oxygen-rich layer of titanium belt surface, and then receive through the winder of pickling unit and to wrap up in into web-like, become the pickling titanium strip coil;
8. the cold-rolling pickling titanium strip coil is opened through the uncoiler of 4-roller reversible cold rolling mill group, the other end is received at the winder of reversible cold-rolling unit and is wrapped up in, middle 4 roller reversible cold-rolling mills that adopt, with thickness be at normal temperatures 3.2mm the titanium band repeatedly roll off to become thickness be the titanium band of 1.5mm, receipts are wrapped up in into web-like, become the cold rolled titanium roll coil of strip;
9. the degreasing cold rolled titanium roll coil of strip is opened through the uncoiler of degreasing unit, and employing alkali point is 8% the residual rolling grease of alkali wash removal titanium belt surface, then receives through the winder of degreasing unit and wraps up in into web-like, becomes the degreasing titanium strip coil;
10. annealing degreasing titanium strip coil is under the state of rolling, and adopting bell type annealing furnace is to carry out annealing in process under 580 ℃ of argon gas inert gas atmospheres in furnace temperature, makes it be transformed into the annealing cold rolled titanium roll coil of strip;
11. straightening annealing cold rolled titanium band twists on the withdrawal straightening stands, open by uncoiler, the process withdrawal straightening stands adopts tension straingtening and roll-in aligning to combine or the method for difference leveling is processed the titanium band, eliminate titanium band internal stress, correct the waveform of titanium belt surface, make the titanium band obtain straight surface state, and then wrap up in into web-like through the winder receipts, become the straightening titanium strip coil;
12. side cut straightening titanium strip coil is opened through the uncoiler of side cut bundling unit, adopt online circle shears that the limit section of operating titanium band was pruned, excises in uneven whole minute, cut into the titanium band of width 1000mm, then receive by winder and wrap up in into web-like, become the finished product titanium strip coil, when the titanium strip length reaches the fabrication plan requirement, carry out bundling;
The present invention's process of cutting edge comprises:
The smooth titanium strip coil of crosscut or straightening titanium strip coil are opened through the uncoiler of crosscut unit, and the multiroller flattening machine of process crosscut unit further improves the glacing flatness of titanium band, then the method that adopts horizontal flying shear to shear cuts into the titanium band titanium plate of different length, collection platform through the crosscut unit is gathered into buttress with the titanium plate again, becomes the titanium plate;
The smooth titanium strip coil of slitting or straightening titanium strip coil are opened through the uncoiler of slitting line, the method of employing circle shear longitudinal shear cuts into the titanium band titanium band of many different in width along its length, and then receive respectively through the winder of vertical unit and to wrap up in into web-like, become narrow titanium volume;
Polishing and the smooth titanium strip coil of albefaction or straightening titanium strip coil are opened through the uncoiler of the pickling machine group that kicks the beam, adopt the abrasive band of rotating that operating titanium band is polished, and then be that the mixed acid of the hydrofluoric acid of 5~50g/L and the nitric acid that the degree of depth is 40~240g/L carries out light pickling albefaction processing through adopting concentration, make it become the albefaction titanium strip coil.
The processing method of the titanium strip coil of embodiment two thickness 0.7mm, width 250mm
The present embodiment process is:
1. the thickness of raw material titanium slab is 180mm, width 1050mm, length 10000mm;
2. heating is heated to 950 ℃ with the titanium slab through gas-fired heater;
3. rolling employing 7 frame tandem mills are processed into titanium slab roll off the titanium band of thickness 3.5mm and receive and wrap up in into web-like, become the hot rolling titanium strip coil;
4. annealing hot rolling titanium strip coil is under the state of volume, and adopting bell type annealing furnace is to carry out annealing in process under 560 ℃ the helium inert gas atmosphere protection in furnace temperature, makes it become annealing hot rolling titanium strip coil;
5. Shot Blasting annealing hot rolling titanium strip coil is opened through the uncoiler of ball blast unit, the oxide skin of titanium belt surface is removed in employing to the method for titanium belt surface ball blast, the abrasion-proof steel ball that is about to diameter 0.3mm is beaten at the titanium belt surface with the frequency throwing of 60Hz, remove the oxide skin of titanium belt surface, and then receive through the winder of ball blast unit and to wrap up in into web-like, become the ball blast titanium strip coil;
6. reconditioning ball blast titanium strip coil is opened through the uncoiler of reconditioning unit, and two lip-deep tiny defect reconditionings are clean up and down with the titanium band to adopt artificial method, then receives through the winder of reconditioning unit and wraps up in into web-like, becomes the reconditioning titanium strip coil;
7. pickling reconditioning titanium strip coil is opened through the uncoiler of pickling unit, adopting concentration is mixed acid and the titanium band generation chemical reaction of the hydrofluoric acid of 60g/L and the nitric acid that the degree of depth is 80g/L, remove oxide layer and the oxygen-rich layer of titanium belt surface, and then receive through the winder of pickling unit and to wrap up in into web-like, become the pickling titanium strip coil;
8. the cold-rolling pickling titanium strip coil is opened through the uncoiler of reversible cold-rolling unit, the other end is received at the winder of reversible cold-rolling unit and is wrapped up in, middle 4 roller reversible cold-rolling mills that adopt, with thickness be at normal temperatures 3.5mm the titanium band repeatedly roll off to become thickness be the titanium band of 2.0mm, receipts are wrapped up in into web-like, become the cold rolled titanium roll coil of strip;
9. the degreasing cold rolled titanium roll coil of strip is opened through the uncoiler of degreasing unit, and employing alkali point is 8% the residual rolling grease of alkali wash removal titanium belt surface, then receives through the winder of degreasing unit and wraps up in into web-like, becomes the degreasing titanium strip coil;
10. annealing degreasing titanium strip coil is under the state of rolling, and adopting bell type annealing furnace is to carry out annealing in process under 600 ℃ of helium inert gas atmospheres in furnace temperature, makes it be transformed into the annealing cold rolled titanium roll coil of strip;
8. secondary cold-rolling pickling titanium strip coil is opened through the uncoiler of reversible cold-rolling unit, the other end is received at the winder of reversible cold-rolling unit and is wrapped up in, middle 4 roller reversible cold-rolling mills that adopt, with thickness be at normal temperatures 2.0mm the titanium band repeatedly roll off to become thickness be the titanium band of 0.7mm, receipts are wrapped up in into web-like, become the cold rolled titanium roll coil of strip;
9. the degreasing cold rolled titanium roll coil of strip is opened through the uncoiler of degreasing unit, and employing alkali point is 8% the residual rolling grease of alkali wash removal titanium belt surface, then receives through the winder of degreasing unit and wraps up in into web-like, becomes the degreasing titanium strip coil;
10. annealing degreasing titanium strip coil is under the state of rolling, and adopting bell type annealing furnace is to carry out annealing in process under 550 ℃ of inert gases (argon gas) atmosphere in furnace temperature, makes it be transformed into the annealing cold rolled titanium roll coil of strip;
11. straightening annealing cold rolled titanium band twists on the withdrawal straightening stands, open by uncoiler, the process withdrawal straightening stands adopts tension straingtening and roll-in aligning to combine or the method for difference leveling is processed the titanium band, eliminate titanium band internal stress, correct the waveform of titanium belt surface, make the titanium band obtain straight surface state, and then wrap up in into web-like through the winder receipts, become the straightening titanium strip coil;
12. side cut straightening titanium strip coil is opened through the uncoiler of side cut bundling unit, adopt online circle shears that the limit section of operating titanium band was pruned, excises in uneven whole minute, the titanium band is cut into the titanium band of width 1008mm, then receive by winder and wrap up in into web-like, become the finished product titanium strip coil;
Adopt slitting straightening titanium strip coil to open through the uncoiler of slitting line, the method of employing circle shear longitudinal shear cuts into the titanium band 4 titanium bands of width 250mm along its length, and then receive respectively through the winder of vertical unit and to wrap up in into web-like, become narrow titanium volume.
Claims (3)
1. titanium or titanium alloy roll coil of strip processing method is characterized in that process is:
1) raw materialThe thickness of titanium slab is 120~230mm, width 600~1600mm, length 5000~12000mm;
2) heatingThe titanium slab is heated to 700 ℃~1100 ℃ through gas-fired heater or electric furnace;
3) rollingTitanium slab roll off after the employing milling train will heat is processed into the titanium band of thickness 2~16mm and receives wraps up in into web-like, becomes the hot rolling titanium strip coil; Adoptable milling train form comprises: the tandem mill of 5~11 frame continuous rollings, or 1 blooming mill adds the single chassis steekle mill of 1 stove volume machine, or the Stand Mill steekle mill of 2 steekle mills;
4) annealingThe hot rolling titanium strip coil is under the state of volume, and adopting bell type annealing furnace is to carry out annealing in process under the inert gas atmosphere of 300 ℃~700 ℃ helium or argon gas in furnace temperature, becomes annealing hot rolling titanium strip coil;
5) Shot BlastingAnnealing hot rolling titanium strip coil is opened through the uncoiler of ball blast unit, the oxide skin of titanium belt surface is removed in employing to the method for titanium belt surface ball blast, the abrasion-proof steel ball that is about to diameter 0.3~2.0mm is beaten at the titanium belt surface with the frequency throwing of 20~100Hz, remove the oxide skin of titanium belt surface, the annealing titanium strip coil is changed into the ball blast titanium strip coil, thereby form titanium band ball blast de-scaling method; And then receive through the winder of ball blast unit and to wrap up in into web-like, become the ball blast titanium strip coil; Wherein, thickness comes into the market to sell as final products greater than the titanium strip coil of 10mm, and the raw material as cold rolling process does not continue processing; The titanium strip coil that thickness is not more than 10mm both can be used as final products and has come into the market to sell, and the raw material that also can be used as cold rolling process continues to be processed as thinner specification kind and sells;
6) reconditioningWhen needs carry out reconditioning to the ball blast titanium strip coil, this process procedure is implemented, the ball blast titanium strip coil is opened through the uncoiler of reconditioning unit, two lip-deep tiny defect reconditionings are clean up and down with the titanium band to adopt grinding tool, then receive through the winder of reconditioning unit and wrap up in into web-like, become the reconditioning titanium strip coil; When not needing that the ball blast titanium strip coil carried out reconditioning, the ball blast titanium strip coil directly changes pickling process processing over to;
7) picklingThe reconditioning titanium strip coil is opened through the uncoiler of pickling unit, adopting concentration is mixed acid and the titanium band generation chemical reaction of the hydrofluoric acid of 10~60g/L and the nitric acid that the degree of depth is 80~320g/L, remove oxide layer and the oxygen-rich layer of titanium belt surface, and then receive through the winder of pickling unit and to wrap up in into web-like, become the pickling titanium strip coil;
8) cold rollingThe pickling titanium strip coil is opened through the uncoiler of reversible cold-rolling unit, the other end is received at the winder of reversible cold-rolling unit and is wrapped up in, middle 4 roller reversible cold-rolling mills or 6 roller reversible cold-rolling mills or 20 roller reversible cold-rolling mills of adopting, with thickness be at normal temperatures 2~10mm the titanium band repeatedly roll off to become thickness be the titanium band of 0.2~4mm, receipts are wrapped up in into web-like, become the cold rolled titanium roll coil of strip; Perhaps: the reconditioning titanium strip coil is opened through the uncoiler of multi-frame continuous rolling mill, with thickness be at normal temperatures the continuous roll off of titanium band of 2~10mm to become thickness be the titanium band of 0.2~4mm, then receive through winder and wrap up in into web-like, become the cold rolled titanium roll coil of strip;
9) degreasingThe cold rolled titanium roll coil of strip is opened through the uncoiler of degreasing unit, and employing alkali point is 3%~51% the residual rolling grease of alkali wash removal titanium belt surface, then receives through the winder of degreasing unit and wraps up in into web-like, becomes the degreasing titanium strip coil;
10) annealingThe degreasing titanium strip coil is under the state of rolling, and adopting bell type annealing furnace is to carry out annealing in process under the inert gas atmosphere of 300 ℃~700 ℃ helium or argon gas in furnace temperature, becomes the annealing cold rolled titanium roll coil of strip;
11) straightening or smoothAnnealing cold rolled titanium band twists on the withdrawal straightening stands, open by uncoiler, the process withdrawal straightening stands adopts tension straingtening and roll-in aligning to combine or the method for difference leveling is processed the titanium band, correct the waveform of titanium belt surface, make the titanium band obtain straight surface state, become the straightening titanium strip coil, thereby form titanium band straightening method; The cold rolled titanium band of perhaps annealing twists on the withdrawal straightening stands, open by uncoiler, the other end is received by winder and is wrapped up in, the centre applies the certain power of depressing and tension force through 4 roller planishers to the titanium band, the waveform of correcting the titanium belt surface is crooked, makes the titanium band obtain straight surface state, eliminates the lumpy not straight situation that the titanium belt surface exists, and then receive through winder and to wrap up in into web-like, become smooth titanium strip coil;
12) cut edgeSmooth titanium strip coil or straightening titanium strip coil are opened through the uncoiler of side cut bundling unit, adopt online circle shears that the limit section of operating titanium band was pruned, excises in uneven whole minute, then receive by winder and wrap up in into web-like, become the finished product titanium strip coil; The rouleau that also can be divided into large volume by customer requirements simultaneously, different length, weight; Titanium strip coil after the side cut according to user's needs, or adopts the crosscut shearing method that the titanium band is cut into the titanium plate of certain-length, by dull and stereotyped delivery; Or adopt longitudinal shearing slitting method that the titanium band is cut into the arrowband of different in width, and receive and wrap up in rolling; Titanium strip coil polishes and light pickling after maybe will cutting edge, by the delivery of albefaction titanium strip coil state.
2. a kind of titanium or titanium alloy roll coil of strip processing method according to claim 1 is characterized in that, comprises in the side cut process:
CrosscutSmooth titanium strip coil or straightening titanium strip coil are opened through the uncoiler of crosscut unit, and the multiroller flattening machine of process crosscut unit further improves the glacing flatness of titanium band, then the method that adopts horizontal flying shear to shear cuts into the titanium band titanium plate of different length, collection platform through the crosscut unit is gathered into buttress with the titanium plate again, becomes the titanium plate;
SlittingSmooth titanium strip coil or straightening titanium strip coil are opened through the uncoiler of slitting line, the method of employing circle shear longitudinal shear cuts into the titanium band titanium band of many different in width along its length, and then receive respectively through the winder of slitting line and to wrap up in into web-like, become narrow titanium volume;
Polishing and albefactionSmooth titanium strip coil or straightening titanium strip coil are opened through the uncoiler of the pickling machine group that kicks the beam, adopt the abrasive band of rotating that operating titanium band is polished, and then be that the mixed acid of the hydrofluoric acid of 5~50g/L and the nitric acid that the degree of depth is 40~240g/L carries out light pickling albefaction processing through adopting concentration, make it become the albefaction titanium strip coil;
Above-mentioned crosscut, slitting, polishing and albefaction operation are selected one and are selected.
3. a kind of titanium or titanium alloy roll coil of strip processing method according to claim 1 is characterized in that, in the process 8) to 10) circulation 1~3 time.
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