CN114453846A - Preparation method of multi-size pure titanium cathode roller - Google Patents
Preparation method of multi-size pure titanium cathode roller Download PDFInfo
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- CN114453846A CN114453846A CN202210291774.9A CN202210291774A CN114453846A CN 114453846 A CN114453846 A CN 114453846A CN 202210291774 A CN202210291774 A CN 202210291774A CN 114453846 A CN114453846 A CN 114453846A
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Abstract
The invention discloses a preparation method of a multi-size pure titanium cathode roller, which comprises the following steps: firstly, opening a double-sided groove on a pure titanium plate, and then welding in a double-sided roll welding manner; secondly, heating and spinning the pure titanium cylinder; heating the core mold before heating and spinning, and heating the pure titanium cylinder; thirdly, annealing the spinning roller to obtain a pure titanium cathode roller; the grain size of the pure titanium cathode roller is not less than 10 grades. According to the invention, through heating and spinning, the uniform growth of the grain sizes of the pure titanium cylinder base metal and the welding line is ensured and the grain sizes tend to be consistent in the deformation process, and finally, the spinning cylinder is annealed, namely, the uniform crystallization treatment is carried out, so that the obtained pure titanium cathode roller integrally obtains an equiaxial crystal structure, the grain size reaches 10 grade, the problem of uniform crystallization of the base metal of the welded titanium cathode roller and a welding area is solved, and the preparation of the pure titanium cathode roller with any inner diameter is realized, so that the high-quality electrolytic copper foil is obtained, the process flow is simple, and the application range is wider.
Description
Technical Field
The invention belongs to the technical field of alloy materials, and particularly relates to a preparation method of a multi-size pure titanium cathode roller.
Background
The electrolytic copper foil is one of the basic materials in the current electronic industry, and is widely applied to the industrial manufacturing fields of household appliances, communication, computers and the like. The cathode titanium roller is a key equipment part for manufacturing the electrolytic copper foil for the circuit board, and the grade and the quality of the electrolytic copper foil are determined by the performance of the roller surface material and the grain size.
In the prior art, a large-sized cathode roller is forged, ring-rolled, hot-rolled and thermally treated to obtain a formed cathode titanium cylinder, and the large-sized titanium cylinder is ring-rolled in the earlier stage, so that the requirement on the ton-level of equipment is high and the material waste is serious, and the cost of the large-sized titanium cylinder is high. The titanium ring is prepared by adopting a welding technology abroad, the price is low, the process is simple, the product cost can be greatly reduced, and the process is optimized, but the grain size grade which can be achieved by preparing the cathode titanium roller by welding is lower at present, and the grain grade and the practical operability are lower by adopting a method of independently deforming a welding seam area.
Therefore, a method for preparing a multi-size pure titanium cathode roller with high grain size by a simple process is needed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a preparation method of a multi-size pure titanium cathode roller aiming at the defects of the prior art. According to the method, the grain sizes of the pure titanium cylinder base metal and the welding line are ensured to be uniformly grown and tend to be consistent in the deformation process through heating and spinning, and finally, the spinning cylinder is annealed, namely, uniform crystallization treatment is carried out, so that the obtained pure titanium cathode roller integrally obtains an equiaxial crystal structure, the grain size reaches 10 grade, the problem of uniform crystallization of the welding titanium cathode roller base metal and a welding area is solved, the preparation of the pure titanium cathode roller with any inner diameter is realized, and therefore the high-quality electrolytic copper foil is obtained, the process flow is simple, and the application range is wide.
In order to solve the technical problems, the invention adopts the technical scheme that: the preparation method of the multi-size pure titanium cathode roller is characterized by comprising the following steps of:
step one, opening double-sided grooves on a pure titanium plate, and then welding the pure titanium plate in a double-sided roll welding manner by adopting argon arc welding to obtain a pure titanium cylinder;
step two, heating and spinning the pure titanium cylinder obtained in the step one by adopting a spinning machine to obtain a spinning cylinder; heating a core mold of a spinning machine to 200-300 ℃ before heating and spinning to obtain a preheated core mold, heating a pure titanium cylinder to 200-500 ℃, and then preserving heat for 0.5-1 h to obtain a preheated pure titanium cylinder; the heating spinning process comprises the following steps: sleeving a preheated pure titanium cylinder on a preheated core mold, then ejecting a tail ejector block and starting a main shaft, so that the preheated pure titanium cylinder rotates along with the preheated core mold to perform spinning, thereby obtaining a spinning cylinder; the heating temperature adopted by the heating spinning is 200-450 ℃, the feeding ratio of a spinning wheel is 1-2.5 mm/rotation, and the pass reduction rate is 10-25%; in the heating spinning process, an oxygen-acetylene flame spray gun is adopted to supplement heat for the preheated pure titanium cylinder and the preheated core mold;
step three, annealing the spinning roller obtained in the step two to obtain a pure titanium cathode roller; the grain size of the pure titanium cathode roller is 10 grades.
According to the invention, the plate-shaped pure titanium plate is subjected to double-sided groove opening, then the pure titanium plate is rolled into a cylinder and is welded in a double-sided roll welding manner by adopting argon arc welding, so that the pure titanium cylinder is obtained, the operation is easy, the method is simple, and the preparation cost is low; according to the invention, before the pure titanium cylinder is heated and spun, the core mold of the spinning machine is preheated, so that the pure titanium cylinder is uniformly heated, the small temperature difference between the inner wall and the outer wall of the pure titanium cylinder is ensured, and the pure titanium cylinder is uniformly heated and uniformly deformed in the heating and spinning process; the preheated core mold and the pure titanium cylinder are assembled with the spinning machine, then the preheated pure titanium cylinder is heated and spun, the sizes of crystal grains of a roller base material and a welding line are ensured to grow and tend to be consistent in the deformation process, and conditions are provided for subsequent annealing and crystallization; in the heating spinning process, the oxygen-acetylene flame spray gun is adopted to supplement heat for the preheated pure titanium cylinder and the preheated core mold, so that the temperature is kept unchanged in the spinning process, the integral grain size of the spinning cylinder is consistent, and the oxygen-acetylene flame spray gun is selected to be easy to operate and reach the required temperature; according to the invention, the spinning roller is annealed, namely, is subjected to uniform crystallization treatment, so that the obtained pure titanium cathode roller has an equiaxial crystal structure, and the grain size reaches 10 grades.
The preparation method of the multi-size pure titanium cathode roller is characterized in that in the step one, the pure titanium plate is a TA1 plate or a TA2 plate, the thickness of the pure titanium plate is 20 mm-30 mm, the components of a welding wire adopted by argon arc welding are TA1 or TA2, and the diameter of the welding wire is 2 mm-2.4 mm. In the invention, the TA1 plate or the TA2 plate is used as a raw material, the corrosion resistance is more than 15 times higher than that of common stainless steel, the service life is more than 10 times longer than that of the stainless steel, and the TA1 plate or the TA2 plate is the most ideal choice as an electrolytic copper foil cathode roller, has good plastic processing performance, is easy to form, has good corrosion resistance and is low in cost; the selection of the components of the welding wire is consistent with that of the base metal, so that the problem that the quality of the deposited copper foil is poor due to inconsistent current of a welding line and the base metal in electrolytic deposition is avoided.
The preparation method of the multi-size pure titanium cathode roller is characterized in that in the second step, the core mold is made of H13 heat-resistant mold steel, and the number of the oxy-acetylene flame spray guns is 4-10. The core mold adopts H13 heat-resistant mold steel, is not easy to deform under the action of high temperature and high stress in the heating spinning process, and can better obtain a roller finished product; the invention controls the temperature in the spinning process by controlling the number of the spray guns, ensures the constant temperature in the heating spinning, thereby ensuring that the grain sizes of the pure titanium cylinder parent metal and the welding line are both large and tend to be consistent in the deformation process, and providing conditions for the subsequent annealing and crystallization.
The preparation method of the multi-size pure titanium cathode roller is characterized in that the annealing temperature in the third step is 550-650 ℃, and the annealing time is 30-60 min. The invention enables the structure after the deformation of the cathode roller to be an isometric crystal structure by controlling the annealing temperature and time, which is a precondition for obtaining high-quality copper foil, generally, the higher the annealing temperature is, the larger the crystal grain growth is, therefore, the annealing temperature is neither too high to cause the crystal grain size to be overlarge, but the too low annealing temperature can not meet the requirement of the recrystallization growth of the crystal grain, and the temperature and time are necessary conditions for causing the crystal grain size of the roller to be small and the crystal grain to be recrystallized and grown into isometric crystal from the deformation structure in a rolling state.
The preparation method of the multi-size pure titanium cathode roller is characterized in that the inner diameter of the pure titanium cathode roller in the third step is 500-3300 mm. The invention controls the inner diameter of the pure titanium cathode roller, so that the prepared pure titanium cathode roller has various sizes and is suitable for preparing electrolytic copper foils with various sizes.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, before the pure titanium cylinder is heated and spun, the core mold and the pure titanium cylinder are preheated, so that the whole pure titanium cylinder is uniformly heated, the small temperature difference of the inner wall and the outer wall of the pure titanium cylinder is ensured, and the small size of the whole crystal grain after the pure titanium cylinder is heated and spun is ensured; according to the invention, through heating and spinning, the uniform growth of the grain sizes of the base material and the welding line of the pure titanium cylinder is ensured and the grain sizes tend to be consistent in the deformation process, and finally, the spinning cylinder is annealed, namely, uniform crystallization treatment is carried out, so that the obtained pure titanium cathode roller integrally obtains an isometric crystal structure, the grain size reaches 10 grade, and the preparation of the pure titanium cathode roller with any inner diameter is realized, so that the high-quality electrolytic copper foil is obtained, the process flow is simple, and the application range is wider.
2. According to the invention, by controlling the temperature of heating spinning, the grain sizes of the pure titanium cylinder and the welding seam are ensured to grow and tend to be consistent in the deformation process, so that conditions are provided for subsequent crystallization, and by controlling the feed ratio and the thinning rate, the pure titanium cylinder is ensured not to crack in the spinning process, so that the pure titanium cylinder is uniformly stressed and is not easy to crack in the spinning process, and the problem of crystallization of the welding titanium cathode roller base metal and the welding area is solved.
3. According to the invention, the plate-shaped pure titanium plate is subjected to double-sided groove opening, then the pure titanium plate is rolled into a cylinder and is welded in a double-sided roll welding manner by adopting argon arc welding, so that the pure titanium cylinder is obtained, the operation is easy, the method is simple, and the preparation cost is low.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a gold phase diagram of the weld zone of a pure titanium cathode roll obtained in example 1 of the present invention.
FIG. 2 is a gold phase diagram of the heat affected zone of a pure titanium cathode roll obtained in example 1 of the present invention.
FIG. 3 is a gold phase diagram of the base material region of the pure titanium cathode roller obtained in example 1 of the present invention.
Detailed Description
Example 1
The embodiment comprises the following steps:
step one, opening double-sided grooves on a pure titanium plate, and then welding the pure titanium plate in a double-sided roll welding manner by adopting argon arc welding to obtain a pure titanium cylinder; the pure titanium plate is a TA2 plate, the thickness of the pure titanium plate is 20mm, the component of a welding wire adopted by argon arc welding is TA2, and the diameter of the welding wire is 2 mm; the welding current of the argon arc welding is 120A, and the welding voltage is 24V; the inner diameter of the pure titanium cylinder is 1500 mm;
step two, heating and spinning the pure titanium cylinder obtained in the step one to obtain a spinning cylinder; heating the core mold to 250 ℃ before heating and spinning to obtain a preheated core mold, heating the pure titanium cylinder to 300 ℃ in an annealing furnace, and then preserving heat for 0.5h to obtain a preheated pure titanium cylinder; the heating spinning process comprises the following steps: sleeving a preheated pure titanium cylinder on a preheated core mold, then ejecting a tail ejector block and starting a main shaft to enable the preheated pure titanium cylinder to rotate along with the preheated core mold, and simultaneously performing heat compensation on the preheated pure titanium cylinder and the preheated core mold by adopting an oxygen-acetylene flame spray gun to obtain a spinning cylinder; the heating temperature adopted by the heating spinning is 300 ℃, the feeding ratio of a spinning wheel is 1 mm/rotation, the pass reduction rate is 10 percent, and the total thickness reduction rate is 50 percent; the core mold is made of H13 heat-resistant mold steel, and the number of the oxy-acetylene flame spray guns is 4; the heating spinning adopts a 3600 vertical powerful spinning machine;
step three, annealing the spinning roller obtained in the step two to obtain a pure titanium cathode roller; the annealing temperature is 550 ℃, and the annealing time is 30 min; the inner diameter of the pure titanium cathode roller is 1500mm, and the wall thickness is 10 mm.
Through detection, the grain size of the pure titanium cathode roller prepared by the embodiment is 10 grade, and the tensile strength of a welding line can reach 373 MPa.
Fig. 1 is a gold phase diagram of the weld zone of the pure titanium cathode roller obtained in this example, and it can be seen from fig. 1 that the weld zone of the pure titanium cathode roller has an equiaxed crystal structure, and the grain size is about 10 μm, which reaches the grain size 10 grade standard.
Fig. 2 is a gold phase diagram of the heat affected zone of the pure titanium cathode roller obtained in this embodiment, and a heat affected zone exists in general argon arc welding, that is, a welding arc acts on a base material region during welding, so that the heat affected zone of the base material near a weld seam is different from the structure of the unheated base material region, but by the method of the present application, it can be seen from fig. 2 that the heat affected zone also has an equiaxial crystal structure, the grain size is about 10 μm, and the grain size reaches the 10-grade standard.
FIG. 3 is a gold phase diagram of the base material region of the pure titanium cathode roller obtained in this example, and it can be seen from FIG. 3 that the grain size of the base material region is about 10 μm, which reaches the grain size 10 grade standard.
As can be seen from comparison of fig. 1, fig. 2 and fig. 3, the grain sizes of the weld zone, the heat affected zone and the base material zone of the pure titanium cathode roller obtained in this embodiment are consistent and about 10 μm, which reaches the standard of grain size level 10 and the requirement of homogeneous crystallization, that is, the pure titanium cathode roller prepared in this embodiment entirely realizes homogeneous crystallization.
The embodiment comprises the following steps:
step one, opening double-sided grooves on a pure titanium plate, and then welding the pure titanium plate in a double-sided roll welding manner by adopting argon arc welding to obtain a pure titanium cylinder; the pure titanium plate is a TA1 plate, the thickness of the pure titanium plate is 25mm, the component of a welding wire adopted by argon arc welding is TA1, and the diameter of the welding wire is 2.2 mm; the welding current of the argon arc welding is 135A, and the welding voltage is 20V; the inner diameter of the pure titanium cylinder is 2000 mm;
step two, heating and spinning the pure titanium cylinder obtained in the step one to obtain a spinning cylinder; heating the core mold to 250 ℃ before heating and spinning to obtain a preheated core mold, heating the pure titanium cylinder to 400 ℃ in an annealing furnace, and then preserving heat for 0.8h to obtain a preheated pure titanium cylinder; the heating spinning process comprises the following steps: sleeving a preheated pure titanium cylinder on a preheated core mold, then ejecting a tail ejector block and starting a main shaft to enable the preheated pure titanium cylinder to rotate along with the preheated core mold, and simultaneously performing heat compensation on the preheated pure titanium cylinder and the preheated core mold by adopting an oxygen-acetylene flame spray gun to obtain a spinning cylinder; the heating temperature adopted by the heating spinning is 200 ℃, the feeding ratio of a spinning wheel is 1.5 mm/rotation, the pass reduction rate is 15 percent, and the total thickness reduction rate is 60 percent; the core mold is made of H13 heat-resistant mold steel, and the number of the oxy-acetylene flame spray guns is 8; the heating spinning adopts a 3600 vertical powerful spinning machine;
step three, annealing the spinning roller obtained in the step two to obtain a pure titanium cathode roller; the annealing temperature is 600 ℃, and the annealing time is 45 min; the inner diameter of the pure titanium cathode roller is 2000mm, and the wall thickness is 10 mm.
Through detection, the grain sizes of the weld zone, the heat affected zone and the base metal zone of the pure titanium cathode roller prepared by the embodiment are consistent and about 10 microns, the grain size reaches the 10-grade standard of grain size, the uniform crystallization requirement is met, and the tensile strength of the weld can reach 368.5 MPa.
Example 3
The embodiment comprises the following steps:
firstly, forming double-sided grooves on a pure titanium plate, and then welding the pure titanium plate in a double-sided roll welding manner by adopting argon arc welding to obtain a pure titanium cylinder; the pure titanium plate is a TA1 plate, the thickness of the pure titanium plate is 30mm, the component of a welding wire adopted by argon arc welding is TA1, and the diameter of the welding wire is 2.4 mm; the welding current of the argon arc welding is 95A, and the welding voltage is 22V; the inner diameter of the pure titanium cylinder is 3300 mm;
step two, heating and spinning the pure titanium cylinder obtained in the step one to obtain a spinning cylinder; heating the core mold to 300 ℃ before heating and spinning to obtain a preheated core mold, heating the pure titanium cylinder to 500 ℃ in an annealing furnace, and then preserving heat for 1h to obtain a preheated pure titanium cylinder; the heating spinning process comprises the following steps: sleeving a preheated pure titanium cylinder on a preheated core mold, then ejecting a tail ejector block and starting a main shaft to enable the preheated pure titanium cylinder to rotate along with the preheated core mold, and simultaneously performing heat compensation on the preheated pure titanium cylinder and the preheated core mold by adopting an oxygen-acetylene flame spray gun to obtain a spinning cylinder; the heating temperature adopted by the heating spinning is 450 ℃, the feeding ratio of a spinning wheel is 2.5 mm/rotation, the pass reduction rate is 25 percent, and the total thickness reduction rate is 67 percent; the core mold is made of H13 heat-resistant mold steel, and the number of the oxy-acetylene flame spray guns is 10; the heating spinning adopts a 3600 vertical powerful spinning machine;
step three, annealing the spinning roller obtained in the step two to obtain a pure titanium cathode roller; the grain size of the pure titanium cathode roller is 10 grades; the annealing temperature is 650 ℃, and the annealing time is 60 min; the pure titanium cathode roller has the inner diameter of 3300mm and the wall thickness of 10 mm.
Through detection, the grain sizes of the weld zone, the heat affected zone and the base metal zone of the pure titanium cathode roller prepared by the embodiment are consistent and about 10 microns, the grain size reaches the 10-grade standard of grain size, the uniform crystallization requirement is met, and the tensile strength of the weld can reach 379.2 MPa.
Example 4
The embodiment comprises the following steps:
step one, opening double-sided grooves on a pure titanium plate, and then welding the pure titanium plate in a double-sided roll welding manner by adopting argon arc welding to obtain a pure titanium cylinder; the pure titanium plate is a TA2 plate, the thickness of the pure titanium plate is 20mm, the component of a welding wire adopted by argon arc welding is TA2, and the diameter of the welding wire is 2 mm; the welding current of the argon arc welding is 120A, and the welding voltage is 21V; the inner diameter of the pure titanium cylinder is 500 mm;
step two, heating and spinning the pure titanium cylinder obtained in the step one to obtain a spinning cylinder; heating the core mold to 200 ℃ before heating and spinning to obtain a preheated core mold, heating the pure titanium cylinder to 200 ℃ in an annealing furnace, and then preserving heat for 0.6h to obtain a preheated pure titanium cylinder; the heating spinning process comprises the following steps: sleeving a preheated pure titanium cylinder on a preheated core mold, then ejecting a tail ejector block and starting a main shaft to enable the preheated pure titanium cylinder to rotate along with the preheated core mold, and simultaneously performing heat compensation on the preheated pure titanium cylinder and the preheated core mold by adopting an oxygen-acetylene flame spray gun to obtain a spinning cylinder; the heating temperature adopted by the heating spinning is 300 ℃, the feeding ratio of a spinning wheel is 1.2 mm/rotation, the pass reduction rate is 10 percent, and the total thickness reduction rate is 50 percent; the core mold is made of H13 heat-resistant mold steel, and the number of the oxy-acetylene flame spray guns is 4; the heating spinning adopts a 3600 vertical powerful spinning machine;
step three, annealing the spinning roller obtained in the step two to obtain a pure titanium cathode roller; the annealing temperature is 550 ℃, and the annealing time is 30 min; the inner diameter of the pure titanium cathode roller is 500mm, and the wall thickness is 10 mm.
Through detection, the grain sizes of the weld zone, the heat affected zone and the base material zone of the pure titanium cathode roller prepared by the embodiment are consistent and about 10 microns, the grain size reaches the 10-grade standard of grain size, the crystallization requirement is met, and the tensile strength of the weld can reach 374.6 MPa.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the technical essence of the invention are still within the protection scope of the technical solution of the invention.
Claims (6)
1. The preparation method of the multi-size pure titanium cathode roller is characterized by comprising the following steps of:
step one, opening double-sided grooves on a pure titanium plate, and then welding the pure titanium plate in a double-sided roll welding manner by adopting argon arc welding to obtain a pure titanium cylinder;
step two, heating and spinning the pure titanium cylinder obtained in the step one by adopting a spinning machine to obtain a spinning cylinder; heating a core mold of a spinning machine to 200-300 ℃ before heating and spinning to obtain a preheated core mold, heating a pure titanium cylinder to 200-500 ℃, and then preserving heat for 0.5-1 h to obtain a preheated pure titanium cylinder; the heating spinning process comprises the following steps: sleeving a preheated pure titanium cylinder on a preheated core mold, then ejecting a tail ejector block and starting a main shaft, so that the preheated pure titanium cylinder rotates along with the preheated core mold to perform spinning, thereby obtaining a spinning cylinder; the heating temperature adopted by the heating spinning is 200-450 ℃, the feeding ratio of a spinning wheel is 1-2.5 mm/rotation, and the pass reduction rate is 10-25%; in the heating spinning process, an oxygen-acetylene flame spray gun is adopted to supplement heat for the preheated pure titanium cylinder and the preheated core mold;
step three, annealing the spinning roller obtained in the step two to obtain a pure titanium cathode roller; the grain size of the pure titanium cathode roller is 10 grades.
2. The method for preparing the multi-size pure titanium cathode roller as claimed in claim 1, wherein in the step one, the pure titanium plate is a TA1 plate or a TA2 plate, the thickness of the pure titanium plate is 20 mm-30 mm, the welding wire adopted in argon arc welding is TA1 or TA2, and the diameter of the welding wire is 2 mm-2.4 mm.
3. The method for preparing the multi-size pure titanium cathode roller according to claim 1, wherein in the step one, the welding current of argon arc welding is 95A-135A, and the welding voltage is 20V-24V.
4. The method for preparing the multi-size pure titanium cathode roller according to claim 1, wherein the core mold in the second step is made of H13 heat-resistant mold steel, and the number of the oxy-acetylene flame spray guns is 4-10.
5. The method for preparing the multi-size pure titanium cathode roller according to claim 1, wherein the annealing temperature in the third step is 550-650 ℃ and the annealing time is 30-60 min.
6. The preparation method of the multi-size pure titanium cathode roller according to claim 1, wherein the inner diameter of the pure titanium cathode roller in the third step is 500 mm-3300 mm.
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| CN115319429A (en) * | 2022-10-17 | 2022-11-11 | 西安稀有金属材料研究院有限公司 | Method for crystallizing both welding seam area and base material area of titanium or titanium alloy welding plate |
| CN115717225A (en) * | 2022-11-24 | 2023-02-28 | 河南科技大学 | Composite shape thermal treatment process for refining titanium material grains |
| CN116334515A (en) * | 2023-04-07 | 2023-06-27 | 河南科技大学 | Heat treatment method for spinning titanium material |
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