CN117139364A - Preparation method of high-surface-roughness cold-rolled titanium coil - Google Patents
Preparation method of high-surface-roughness cold-rolled titanium coil Download PDFInfo
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- CN117139364A CN117139364A CN202311199511.6A CN202311199511A CN117139364A CN 117139364 A CN117139364 A CN 117139364A CN 202311199511 A CN202311199511 A CN 202311199511A CN 117139364 A CN117139364 A CN 117139364A
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 209
- 239000010936 titanium Substances 0.000 title claims abstract description 209
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 209
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 111
- 238000007788 roughening Methods 0.000 claims abstract description 78
- 230000003746 surface roughness Effects 0.000 claims abstract description 58
- 238000011282 treatment Methods 0.000 claims abstract description 56
- 239000000839 emulsion Substances 0.000 claims abstract description 30
- 238000005097 cold rolling Methods 0.000 claims abstract description 29
- 238000005422 blasting Methods 0.000 claims abstract description 26
- 238000005238 degreasing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims 8
- 238000000137 annealing Methods 0.000 description 12
- 238000004381 surface treatment Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000005488 sandblasting Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
- B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention provides a preparation method of a high-surface-roughness cold-rolled titanium coil, which comprises the following steps: s1, shot blasting roughening treatment of a working roll: performing shot blasting roughening treatment on the cold rolling working roll to obtain Mao Huagun; s2, rolling the titanium coil before roughening: rolling the titanium coil to a target thickness by adopting a non-texturing roller, and reserving a thickness allowance of 0.005-0.03 mm for rolling or flattening of the subsequent texturing roller during rolling; s3, titanium texturing treatment: rolling or flattening the titanium coil by adopting a texturing roller to obtain a cold-rolled titanium coil with high surface roughness; s4, degreasing treatment: the method for preparing the high-surface-roughness cold-rolled titanium coil can stably obtain the titanium coil with good surface quality and high surface roughness of 0.6-2 mu m by using a roller with the surface subjected to special shot blasting treatment and combining rolling force, rolling speed and emulsion flow control during rolling in the roughening treatment process.
Description
Technical Field
The invention relates to the technical field of nonferrous metal processing, in particular to the technical field of cold-rolled titanium coil processing, and particularly relates to a preparation method of a cold-rolled titanium coil with high surface roughness.
Background
The elastic modulus of titanium metal is low, and the work hardening index is high, so that the resilience of the rolled titanium coil is strong, the cold rolling process is difficult, and the rolling force required by rolling is large, and the friction force between the roller and the surface of the titanium coil is also large. In order to reduce rolling force and friction force, a cold rolling working roll with low roughness is generally adopted in the prior art for rolling, the surface roughness of the cold rolling working roll is generally less than or equal to 0.3 mu m, the surface roughness of a rolled titanium coil is also lower, the surface roughness of the rolled titanium coil is generally less than or equal to 0.6 mu m, and the following problems can occur in the rolling mode:
firstly, the thickness of a titanium coil used in part of industries, such as a heat exchanger industry, is generally between 0.5 and 1.0mm, the coil is often subjected to treatments such as bell-type furnace high-temperature annealing after rolling, and in the annealing process, the surface roughness of the coil has direct influence on the surface adhesion of the coil in the annealing process, and adhesion defects are very easy to occur in the annealing process when the surface roughness of the coil is low;
secondly, the special requirements of part of industries, such as battery electrode plate industry, on the surface roughness of the cold-rolled sheet cannot be met, the surface roughness of the sheet is required to be 0.6-2.0 mu m, and particularly the surface roughness of the titanium coil is required to be controlled to be more than 1 mu m.
At present, in order to obtain a cold-rolled titanium plate with high surface roughness, surface treatment means such as sand blasting or acid washing are generally adopted after a titanium coil is cut into a single titanium plate, namely, in the prior art, the cold-rolled titanium coil with high surface roughness is difficult to directly obtain when the titanium coil is rolled, so that the titanium plate is required to be subjected to surface treatment to improve the surface roughness after the titanium coil is rolled.
Disclosure of Invention
The invention designs a preparation method of a high-surface-roughness cold-rolled titanium coil, which aims to solve the technical problems that the existing cold-rolled titanium plate has lower surface roughness, is easy to adhere and generate defects during annealing, and the cold-rolled titanium plate with high surface roughness is required to be obtained by surface treatment means such as sand blasting or acid washing.
In order to solve the problems, the invention discloses a preparation method of a high-surface-roughness cold-rolled titanium coil, which comprises the following steps:
s1, shot blasting roughening treatment of a working roll: performing shot blasting roughening treatment on the cold rolling working roll to obtain Mao Huagun after the roughening treatment, wherein the surface roughness of the roughening roll is controlled to be 2.0-3.5 mu m;
s2, rolling the titanium coil before roughening: rolling a titanium coil with high roughness to a target thickness by adopting a non-texturing roller on a cold rolling mill, and obtaining a first type of titanium coil before texturing after rolling, wherein a thickness allowance of 0.005-0.03 mm is reserved for subsequent texturing roller rolling or flattening during rolling;
s3, titanium texturing treatment: replacing the cold rolling working roll with the texturing roll obtained in the step S1, and then rolling or flattening the titanium coil by adopting the texturing roll to obtain a cold-rolled titanium coil with high surface roughness;
s4, degreasing treatment: and removing emulsion on the surface of the titanium coil through chemical degreasing after roughening to obtain a cold-rolled titanium coil finished product with a high-roughness surface with the roughness of 0.6-2 mm.
Further, the preparation method of the high surface roughness cold rolled titanium coil is used for producing the titanium coil with the thickness of 0.4-4.0 mm, the width of 900-1250 mm and the roughness of 0.6-2 mu m.
Further, in the step S1, a cold rolling working roll with a roll diameter of 350-390 mm and a length of 1300-1600 mm is selected for roughening treatment to obtain a roughened roll.
Further, in the step S1, the roughness peak count Rpc value of the texturing roller is controlled to 27 or more.
Further, in the step S2, the reserved thickness allowance is determined according to the target thickness of the titanium coiled material, and when the target thickness of the titanium coiled material is 0.4-1.0 mm, the reserved thickness allowance is 0.005-0.01 mm; when the target thickness of the titanium coiled material is 1.0-4.0 mm, the reserved thickness allowance is 0.01-0.03 mm.
Further, in the step S2, after rolling the titanium coil before texturing by using a non-texturing roller, degreasing and annealing the first type of titanium coil before texturing to obtain a second type of titanium coil before texturing, and then texturing the second type of titanium coil before texturing according to the step S3.
Further, in the step S3, the pressing and grinding time after each replacement of the texturing roller is less than or equal to 3min.
Further, in the step S3, the number of passes of rolling or flattening by using a texturing roller is 1 to 4.
Further, in the step S3, in the titanium coil roughening treatment, the surface roughness of the titanium coil is controlled by the rolling force and the emulsion flow rate: for the TA1 titanium coil, when the rolling force is controlled to be 150-900 tons and the emulsion flow is controlled to be 1000-4000L/min, the TA1 titanium coil with the roughness of 0.6-2.0 mu m can be obtained; when the rolling force is controlled to be 300-1000 tons and the emulsion flow rate is controlled to be 2000-4000L/min, the TA2 titanium coil with the roughness of 0.6-2.0 mu m can be obtained.
Further, in the step S3, during the titanium coil roughening treatment, the required rolling force is set according to the thickness of the titanium coil:
the rolling force required by the TA1 titanium coil with the thickness of 1-4 mm is 150-650 tons;
the rolling force required by the TA1 titanium coil with the thickness of 0.4-1 mm is 200-900 tons;
the rolling force required by TA2 titanium coil with thickness of 1-4 mm is 500-650 tons
The rolling force required by the TA2 titanium coil with the thickness of 0.4-1 mm is 600-950 tons.
The preparation method of the high-surface-roughness cold-rolled titanium coil has the following advantages:
firstly, the shot blasting roughening treatment can be realized by performing the shot blasting roughening treatment on the existing cold rolling working roll without adding additional equipment, so that the method is economical and practical;
secondly, the operation is simple, and the roughening treatment is carried out by using a roughening roller after the titanium coil is rolled;
thirdly, surface treatment means such as sand blasting or acid washing are not needed for the titanium coil, the operation is simple, the cost is low, and the obtained titanium plate has stable performance and good surface state;
fourth, can realize the continuous production of the cold rolled titanium coil of high surface roughness, the efficiency is high, with low costs.
In a word, the preparation method of the high surface roughness cold rolled titanium coil uses the roller with the surface subjected to special shot blasting treatment, and combines rolling force, rolling speed and emulsion flow control during rolling in the texturing treatment process, so that the titanium coil with good surface quality and high surface roughness of 0.6-2 mu m can be stably obtained.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of embodiments of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
A preparation method of a high surface roughness cold-rolled titanium coil comprises the following steps:
s1, shot blasting roughening treatment of a working roll: performing shot blasting roughening treatment on the cold rolling working roll to obtain Mao Huagun after the roughening treatment, wherein the surface roughness of the roughening roll is controlled to be 2.0-3.5 mu m;
s2, rolling the titanium coil before roughening: rolling a titanium coil with high roughness to a target thickness by adopting a non-texturing roller on a cold rolling mill, and obtaining a first type of titanium coil before texturing after rolling, wherein a thickness allowance of 0.005-0.03 mm is reserved for rolling or flattening by adopting a subsequent texturing roller during rolling;
s3, titanium texturing treatment: and (2) replacing the cold rolling working roll with the texturing roll obtained in the step (S1), and then rolling or flattening the titanium coil by adopting the texturing roll to obtain the cold-rolled titanium coil with high surface roughness.
Preferably, the preparation method of the high surface roughness cold rolled titanium coil can be used for producing titanium coils with the thickness of 0.4-4.0 mm, the width of 900-1250 mm and the roughness of 0.6-2 mu m.
Preferably, in the step S1, a cold rolling work roll having a roll diameter of 350 to 390mm and a length of 1300 to 1600mm is selected for roughening treatment to obtain a roughened roll.
More preferably, in the step S1, a cold rolling work roll having a roll diameter of 350 to 390mm and a roll length of 1450mm is selected and roughened to obtain a roughened roll.
Further, in the step S1, the roughness peak count Rpc value of the texturing roller is controlled to 27 or more.
Further, in the step S2, a normal work roll, that is, a cold-rolled work roll having a surface roughness of 0.3 μm or less, which has not undergone roughening treatment, is used to roll the titanium coil, which is required to obtain high roughness, to a target thickness.
As some embodiments of the present invention, in the step S2, a titanium roll, which is required to obtain high roughness, may be rolled to a target thickness on a cold rolling mill having a roll length of 1450mm
Further, in the step S2, the reserved thickness allowance is determined according to the target thickness of the titanium coiled material, and preferably, when the target thickness of the titanium coiled material is 0.4-1.0 mm, the reserved thickness allowance is 0.005-0.01 mm; when the target thickness of the titanium coiled material is 1.0-4.0 mm, the reserved thickness allowance is 0.01-0.03 mm. The target thickness is the thickness of a finished product of the titanium coil with high roughness to be obtained, and the thickness allowance is the difference between the actual thickness of the titanium coil after rolling in the step S2 and the target thickness.
As some embodiments of the present invention, after rolling the titanium coil before roughening by using the non-roughening roller in the step S2, the titanium coil roughening treatment may be directly performed on the first type of titanium coil before roughening by using Mao Huagun through a continuous rolling process, so as to obtain a high surface roughness cold rolled titanium coil.
As some embodiments of the present invention, in the step S2, after rolling the pre-texturing titanium coil by using the non-texturing roller, the first type of pre-texturing titanium coil may be degreased and annealed to obtain the second type of pre-texturing titanium coil, and then the second type of pre-texturing titanium coil may be subjected to the titanium coil texturing treatment according to the step S3 to obtain the high surface roughness cold rolled titanium coil.
Preferably, in the step S2, firstly rolling the titanium coil with high roughness to a target thickness on a cold rolling mill, and reserving a thickness allowance of 0.005-0.03 mm for roughing roller rolling or flattening to obtain a first type of titanium coil before roughing; and degreasing the first-type pre-roughened titanium coil to remove surface emulsion and annealing to obtain a second-type pre-roughened titanium coil.
Further, in the step S3, the roughening treatment is performed at the same time as much as possible for the titanium coil having a high roughness requirement, so as to reduce the pressing performed after each roll loading and the roughness attenuation caused by the grinding roll.
Further, in the step S3, the pressing and grinding time after each replacement of the texturing roller is not more than 3 minutes, so as to reduce the attenuation of the roughness of the texturing roller.
Further, in the step S3, the tension per unit is 2.5kg/mm on a cold rolling mill having a roll length of 1450mm 2 ～10.5kg/mm 2 Rolling or flattening the titanium coil with the rolling reduction of 0.005-0.03 mm to obtain the cold-rolled titanium coil with high surface roughness.
Further, in the step S3, the number of passes of rolling or flattening by using a texturing roller is 1 to 4.
Further, in the step S3, during the roughening treatment of the titanium coil, the surface roughness of the titanium coil is mainly controlled by the rolling force and the emulsion flow rate.
Preferably, in the process of roughening the titanium coil, for the TA1 titanium coil, the rolling force is required to be controlled to be 150-900 tons, the emulsion flow is controlled to be 1000-4000L/min, and the TA1 titanium coil with the roughness of 0.6-2.0 mu m can be obtained; for the TA2 titanium coil, the rolling force is controlled to be 300-1000 tons, the flow rate of the emulsion is controlled to be 2000-4000L/min, and the TA2 titanium coil with the roughness of 0.6-2.0 mu m can be obtained.
Further, in the step S3, during the roughening treatment of the titanium coil, the required rolling force is different for titanium coils of different thicknesses; in general, the thinner the thickness of the titanium coil is, the larger the rolling force is required; the thicker the titanium coil, the less rolling force is required.
Preferably, in the process of roughening the titanium coil, the rolling force required by the TA1 titanium coil with the thickness of 1-4 mm is 150-650 tons, and the rolling force required by the TA1 titanium coil with the thickness of 0.4-1 mm is 200-900 tons; the rolling force required by the TA2 titanium coil with the thickness of 1-4 mm is 500-650 tons, and the rolling force required by the TA2 titanium coil with the thickness of 0.4-1 mm is 600-950 tons.
Further, in the step S3, the rolling force and the emulsion flow are comprehensively regulated and controlled according to the roughness attenuation state of the texturing roller so as to obtain the surface of the high-roughness titanium coil.
Specifically, in the initial stage of the texturing roller, the roughness is higher, at the moment, the rolling force can be properly reduced, and the emulsion flow can be properly increased; as the roughness of the texturing roller gradually decays, the rolling force needs to be properly increased and the emulsion flow needs to be properly reduced.
As some embodiments of the invention, a roughened 0.5mm ta1 titanium coil is taken as an example: when the roughness of Mao Huagun is 2.6 mu m, the flow rate of the emulsion can be controlled at 3000L/min, the rolling force is controlled at 350 tons, and the titanium coil with the roughness of 1.0 mu m can be obtained at the moment; after Mao Huagun roughening 10-15 titanium rolls, mao Huagun is subjected to roughness attenuation, if 0.5mM TA1 titanium roll with a roughness of 1.0 μm is still required, the rolling force is increased to 450 tons, the emulsion flow is reduced to 2000L/min, and at this time, the titanium roll with a roughness of about 1.0 μm is obtained.
Further, the preparation method of the high surface roughness cold rolled titanium coil further comprises the following steps:
s4, degreasing treatment: and removing emulsion on the surface of the titanium coil through chemical degreasing after roughening to obtain a cold-rolled titanium coil finished product with a high-roughness surface with the roughness of 0.6-2 mm.
Therefore, the preparation method of the high-surface-roughness cold-rolled titanium coil can stably obtain the titanium coil with the high-roughness surface having the roughness of 0.6-2 mu m by performing shot blasting roughening treatment on the cold-rolled working roller and combining rolling force, emulsion flow and reduction thickness control before or after coil annealing.
And is obtained by actual rolling: the pair of roughening rollers can process more than 100 tons of titanium coil, so the preparation method of the high-surface-roughness cold-rolled titanium coil has the advantages of low cost and high efficiency.
Therefore, the preparation method of the high-surface-roughness cold-rolled titanium coil performs shot blasting on the roller by using special shot blasting equipment, and is matched with reserving a certain thickness allowance for the coil, so that the equipment and process requirements are low, and titanium coil products with different surface roughness requirements of 0.6-2.0 mu m can be rapidly and efficiently produced.
The following is a specific example of the method for preparing the high surface roughness cold rolled titanium coil according to the present invention:
example 1
Preparation of a high surface roughness cold-rolled titanium coil:
s1, shot blasting roughening treatment of a working roll: performing shot blasting Mao Chuli on the cold-rolled working roller, roughening to obtain Mao Huagun, wherein the surface roughness of the roughened roller is 2.0 mu m, and the roughness peak count Rpc value of the roughened roller is 29;
s2, rolling the titanium coil before roughening: rolling a TA1 titanium coil with high roughness to 1.01mm by adopting a non-roughening roller on a cold rolling mill, and obtaining a first-class roughened titanium coil after rolling; reserving a thickness allowance of 0.01mm for roughening roller rolling or flattening during rolling, and then degreasing and cover annealing to obtain a second type of roughened titanium coil;
s3, titanium texturing treatment: the cold rolling working roll is replaced by Mao Huagun obtained in the step S1, and the pressing and grinding time of the texturing roll is 1min; roughening and flattening the titanium coil, wherein the rolling force is 450 tons, the emulsion flow is 4000L/min, and the rolling reduction is 0.005mm; roughening for 1 pass;
s4, degreasing treatment: and removing emulsion on the surface of the titanium coil through chemical degreasing after roughening to obtain a cold-rolled titanium coil finished product with a high-roughness surface with the roughness of 0.9 mu m.
Example 2
Preparation of a high surface roughness cold-rolled titanium coil:
s1, shot blasting roughening treatment of a working roll: performing shot blasting Mao Chuli on the cold-rolled working roller, roughening to obtain Mao Huagun, wherein the surface roughness of the roughened roller is 2.6 mu m, and the roughness peak count Rpc value of the roughened roller is 31;
s2, rolling the titanium coil before roughening: rolling a TA1 titanium coil with high roughness to 0.5mm by adopting a non-roughening roller on a cold rolling mill, and obtaining a first-class roughened titanium coil after rolling; reserving a thickness allowance of 0.006mm for roughening roller rolling or flattening during rolling, and then degreasing and cover annealing to obtain a second type of roughened titanium coil;
s3, titanium texturing treatment: the cold rolling working roll is replaced by Mao Huagun obtained in the step S1, and the pressing and grinding time of the texturing roll is 1min; roughening and flattening the titanium coil, wherein the rolling force is 400 tons, the emulsion flow is 3000L/min, and the rolling reduction is 0.005mm; roughening for 1 pass;
s4, degreasing treatment: and removing emulsion on the surface of the titanium coil through chemical degreasing after roughening to obtain a cold-rolled titanium coil finished product with a high-roughness surface with the roughness of 1.2 mu m.
Example 3
Preparation of a high surface roughness cold-rolled titanium coil:
s1, shot blasting roughening treatment of a working roll: performing shot blasting Mao Chuli on the cold-rolled working roller, roughening to obtain Mao Huagun, wherein the surface roughness of the roughened roller is 2.0 mu m, and the roughness peak count Rpc value of the roughened roller is 30;
s2, rolling the titanium coil before roughening: rolling a TA2 titanium coil with high roughness to 1.01mm by adopting a non-roughening roller on a cold rolling mill, and obtaining a first-class roughened titanium coil after rolling; reserving a thickness allowance of 0.01mm for roughening roller rolling or flattening during rolling, and then degreasing and cover annealing to obtain a second type of roughened titanium coil;
s3, titanium texturing treatment: the cold rolling working roll is replaced by Mao Huagun obtained in the step S1, and the pressing and grinding time of the texturing roll is 2 minutes; roughening and flattening the titanium coil, wherein the rolling force is 550 tons, the emulsion flow is 4000L/min, and the rolling reduction is 0.005mm; roughening for 2 times;
s4, degreasing treatment: and removing emulsion on the surface of the titanium coil through chemical degreasing after roughening to obtain a cold-rolled titanium coil finished product with a high-roughness surface with the roughness of 1.6 mu m.
Example 4
Preparation of a high surface roughness cold-rolled titanium coil:
s1, shot blasting roughening treatment of a working roll: performing shot blasting Mao Chuli on the cold-rolled working roller, roughening to obtain Mao Huagun, wherein the surface roughness of the roughened roller is 2.3 mu m, and the roughness peak count Rpc value of the roughened roller is 31;
s2, rolling the titanium coil before roughening: rolling a TA2 titanium coil with high roughness to 0.5mm by adopting a non-roughening roller on a cold rolling mill, and obtaining a first-class roughened titanium coil after rolling; reserving a thickness allowance of 0.006mm for roughening roller rolling or flattening during rolling, and then degreasing and cover annealing to obtain a second type of roughened titanium coil;
s3, titanium texturing treatment: the cold rolling working roll is replaced by Mao Huagun obtained in the step S1, and the pressing and grinding time of the texturing roll is 1min; roughening and flattening the titanium coil, wherein the rolling force is 700 tons, the emulsion flow is 3000L/min, and the rolling reduction is 0.005mm; roughening for 3 times;
s4, degreasing treatment: and removing emulsion on the surface of the titanium coil through chemical degreasing after roughening to obtain a cold-rolled titanium coil finished product with a high-roughness surface with the roughness of 1.8 mu m.
In summary, it is possible to obtain: the preparation method of the high-surface-roughness cold-rolled titanium coil has the following advantages:
firstly, the shot blasting treatment can be realized by performing the shot blasting treatment on the existing cold rolling working roller without adding additional equipment, so that the method is economical and practical;
secondly, the operation is simple, and the roughening treatment is carried out by using a roughening roller after the titanium coil is rolled;
thirdly, surface treatment means such as sand blasting or acid washing are not needed for the titanium coil, the operation is simple, the cost is low, and the obtained titanium plate has stable performance and good surface state;
fourth, can realize the continuous production of the cold rolled titanium coil of the surface roughness, the efficiency is high, with low costs.
In a word, the preparation method of the high surface roughness cold rolled titanium coil uses the roller with the surface subjected to special shot blasting treatment, and combines rolling force, rolling speed and emulsion flow control during rolling in the texturing treatment process, so that the titanium coil with good surface quality and high surface roughness of 0.6-2 mu m can be stably obtained.
Although the present invention is disclosed above, the present invention is not limited thereto. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Claims (10)
1. The preparation method of the cold-rolled titanium coil with high surface roughness is characterized by comprising the following steps:
s1, shot blasting roughening treatment of a working roll: performing shot blasting roughening treatment on the cold rolling working roll to obtain Mao Huagun after the roughening treatment, wherein the surface roughness of the roughening roll is controlled to be 2.0-3.5 mu m;
s2, rolling the titanium coil before roughening: rolling a titanium coil with high roughness to a target thickness by adopting a non-texturing roller on a cold rolling mill, and obtaining a first type of titanium coil before texturing after rolling, wherein a thickness allowance of 0.005-0.03 mm is reserved for subsequent texturing roller rolling or flattening during rolling;
s3, titanium texturing treatment: replacing the cold rolling working roll with the texturing roll obtained in the step S1, and then rolling or flattening the titanium coil by adopting the texturing roll to obtain a cold-rolled titanium coil with high surface roughness;
s4, degreasing treatment: and removing emulsion on the surface of the titanium coil through chemical degreasing after roughening to obtain a cold-rolled titanium coil finished product with a high-roughness surface with the roughness of 0.6-2 mm.
2. The method for producing a high surface roughness cold rolled titanium coil as claimed in claim 1, wherein the method for producing a high surface roughness cold rolled titanium coil is used for producing a titanium coil with a thickness of 0.4-4.0 mm, a width of 900-1250 mm, and a roughness of 0.6-2 μm.
3. The method for producing a high surface roughness cold rolled titanium coil according to claim 1, wherein in the step S1, a cold rolled work roll having a roll diameter of 350 to 390mm and a length of 1300 to 1600mm is used for roughening treatment to obtain a roughened roll.
4. The method for producing a high surface roughness cold rolled titanium coil as claimed in claim 1 or 3, wherein in said step S1, a roughness peak count Rpc value of the texturing roller is controlled to 27 or more.
5. The method for manufacturing a high surface roughness cold rolled titanium coil according to claim 1, wherein in the step S2, the reserved thickness allowance is determined according to the target thickness of the titanium coil, and when the target thickness of the titanium coil is 0.4-1.0 mm, the reserved thickness allowance is 0.005-0.01 mm; when the target thickness of the titanium coiled material is 1.0-4.0 mm, the reserved thickness allowance is 0.01-0.03 mm.
6. The method according to claim 1 or 5, wherein in the step S2, the non-texturing roller is used to roll the titanium coil before texturing, the first-type titanium coil before texturing is degreased and annealed to obtain a second-type titanium coil before texturing, and the second-type titanium coil before texturing is then subjected to the titanium coil texturing according to the step S3.
7. The method according to claim 1, wherein in the step S3, the pressing and grinding time after each replacement of the texturing roller is 3min or less.
8. The method for producing a high surface roughness cold rolled titanium coil as claimed in claim 1 or 7, wherein the rolling or flattening pass using a texturing roller is 1 to 4 passes in step S3.
9. The method for producing a high surface roughness cold rolled titanium coil according to claim 1, wherein in the step S3, the surface roughness of the titanium coil is controlled by rolling force and emulsion flow rate: for the TA1 titanium coil, when the rolling force is controlled to be 150-900 tons and the emulsion flow is controlled to be 1000-4000L/min, the TA1 titanium coil with the roughness of 0.6-2.0 mu m can be obtained; when the rolling force is controlled to be 300-1000 tons and the emulsion flow rate is controlled to be 2000-4000L/min, the TA2 titanium coil with the roughness of 0.6-2.0 mu m can be obtained.
10. The method for producing a high surface roughness cold rolled titanium coil according to claim 1 or 9, wherein in the step S3, the required rolling force is set according to the thickness of the titanium coil during the titanium coil texturing process:
the rolling force required by the TA1 titanium coil with the thickness of 1-4 mm is 150-650 tons;
the rolling force required by the TA1 titanium coil with the thickness of 0.4-1 mm is 200-900 tons;
the rolling force required by TA2 titanium coil with thickness of 1-4 mm is 500-650 tons
The rolling force required by the TA2 titanium coil with the thickness of 0.4-1 mm is 600-950 tons.
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