CN112281025A - TC4 titanium alloy wire and preparation method thereof - Google Patents
TC4 titanium alloy wire and preparation method thereof Download PDFInfo
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- CN112281025A CN112281025A CN202011139989.6A CN202011139989A CN112281025A CN 112281025 A CN112281025 A CN 112281025A CN 202011139989 A CN202011139989 A CN 202011139989A CN 112281025 A CN112281025 A CN 112281025A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
Abstract
The embodiment of the invention provides a TC4 titanium alloy wire and a preparation method thereof, which comprises the steps of obtaining a TC4 titanium alloy ingot smelted by three VAR; forging the TC4 titanium alloy ingot, and rolling the forged TC4 titanium alloy bar blank to obtain a rolled bar blank; hot rolling the rolled bar blank and peeling to obtain a semi-finished product; hot continuous rolling and rolling the semi-finished product by a roller die to be hot rounded, and peeling to phi 5.25-phi 6.25; and (4) stress relief annealing heat treatment, straightening and grinding to phi 5.0-phi 6.0mm to obtain the TC4 titanium alloy wire. The hot continuous rolling replaces the existing processing technology, the compressive stress in the rolling process is the main stress deformation mode, the production efficiency can be effectively improved in the processing of coiling the wire material of the fastener, the wire material with high strength, high toughness and high surface quality is obtained, the metallographic structure difference of the transverse section and the longitudinal section is small, and the comprehensive mechanical property of the material is excellent.
Description
Technical Field
The invention belongs to the technical field of titanium alloy processing, and particularly relates to a TC4 titanium alloy wire and a preparation method thereof.
Background
At present, the drawing of titanium and titanium alloy wires mainly depends on graphite emulsion lubrication hot drawing, soap powder lubrication cold drawing, paraffin lubrication cold drawing and roller die cold drawing. Drawing mainly uses tensile stress as a main deformation mode, needs multiple modes, is repeatedly and circularly carried out, has low efficiency and high cost, easily produces the defects of surface sliding damage, mold sticking and the like in drawing, and the rapid processing and hardening leads to low plasticity of the material, the metallographic phase of the longitudinal section is seriously elongated and has obvious difference with the cross section, thereby forming a more obvious longitudinal wire texture, being not beneficial to adopting the transverse performance and being not beneficial to the twisting performance of the wire material.
Disclosure of Invention
In order to solve the technical problems, the invention provides a TC4 titanium alloy wire and a preparation method thereof, and the technical problems to be solved by the invention are realized by the following technical scheme:
the preparation method of the TC4 titanium alloy wire provided by the embodiment of the invention comprises the following steps:
obtaining a TC4 titanium alloy ingot smelted by three times of VAR;
forging the TC4 titanium alloy ingot, and rolling the forged TC4 titanium alloy bar blank to obtain a rolled bar blank;
hot rolling the rolled bar blank and peeling to obtain a semi-finished product;
hot continuous rolling and rolling the semi-finished product into a round shape by a roller die, and peeling to phi 5.25-phi 6.25 mm;
and (4) stress relief annealing heat treatment, straightening and grinding to phi 5.0-phi 6.0mm to obtain the TC4 titanium alloy wire.
Further, the TC4 titanium alloy bar blank has the following element composition: al:6.0-6.5, V:4.0-4.5, O:0.10-0.13, Fe:0.15-0.20 percent, less than or equal to 0.01 percent of N, less than or equal to 0.03 percent of C, and less than or equal to 0.003 percent of H.
Further, forging the TC4 titanium alloy ingot, wherein the forging temperature is 1150 ℃, and the diameter of the forged TC4 titanium alloy bar billet is phi 150 mm.
Further, rolling the forged TC4 titanium alloy bar billet to obtain a rolled bar billet comprising:
the temperature is 945 ℃, and the forged TC4 titanium alloy bar billet is rolled to phi 60 mm;
and (3) rolling the TC4 titanium alloy bar billet with the diameter of phi 60mm to the diameter of phi 10.0mm at the temperature of 910 ℃ to obtain a rolled bar billet.
Further, hot-rolling the rolled bar stock and peeling the rolled bar stock to obtain a semi-finished product comprising:
hot gauge rounding the rolled bar stock to phi 9.5mm, peeling to phi 9 mm;
and (5) carrying out flaw detection on the semi-finished product with the diameter of phi 9mm to obtain the semi-finished product meeting the preset standard.
Further, hot rolling and rolling the semi-finished product by a roller die to perform hot rounding, and peeling to phi 5.25-phi 6.25mm comprises the following steps:
continuously rolling the semi-finished product to phi 5.8-phi 6.8mm under the temperature of 880-900 ℃;
under the condition of the temperature of 750-780 ℃, hot sizing the semi-finished product roller die after hot continuous rolling to phi 5.3-phi 6.3 mm;
peeling the semi-finished product subjected to hot sizing of the roller die to phi 5.25+0.05-Φ6.25+0.05mm。
Further, the TC4 titanium alloy bar is made of 0-grade sponge titanium.
The TC4 titanium alloy wire is prepared by the method.
Compared with the prior art, the invention has the beneficial effects that:
the embodiment of the invention provides a TC4 titanium alloy wire and a preparation method thereof, and the preparation method comprises the following steps: obtaining a TC4 titanium alloy ingot smelted by three times of VAR; forging the TC4 titanium alloy ingot, and rolling the forged TC4 titanium alloy bar blank to obtain a rolled bar blank; hot rolling the rolled bar blank and peeling to obtain a semi-finished product; hot continuous rolling and rolling the semi-finished product into a round shape by a roller die, and peeling to phi 5.25-phi 6.25 mm; and (4) stress relief annealing heat treatment, straightening and grinding to phi 5.0-phi 6.0mm to obtain the TC4 titanium alloy wire. According to the scheme provided by the embodiment of the invention, the hot drawing is utilized to replace the existing processing technology, the compressive stress in the rolling process is a deformation mode, the hot drawing method is already applied to the processing of foreign titanium alloy wires, the production efficiency can be effectively improved in the processing of coiled wires of fasteners, the wires with high strength, high toughness and high surface quality are obtained, the metallographic structure difference of the transverse and longitudinal sections is small, and the comprehensive mechanical properties of the materials are excellent. The method solves the problems of low efficiency and severe processing environment of hot-drawing processing of the wire material in the current traditional mode, reduces the anisotropy and the texture of the material, and improves the performance of the material. The target is applied to medical high-toughness high-torsion wire materials, ultrasonic knife bar materials and hot heading/cold heading fastener wire materials. Covering wire products with the diameter of below 7 mm. Compared with the traditional hot drawing, the product has obvious difference, the wiredrawing texture is controlled, and the performance of the tested material meets the requirements of related application fields. The TC4ELI titanium alloy phi 5.0-phi 6.0mm bar can obtain high strength and high toughness Rm which is more than or equal to 1030MPa, Rp0.2 which is more than or equal to 900MPa, A which is more than or equal to 15 percent, fine isometric alfa phase morphology, and small difference of transverse and longitudinal grain morphology.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
FIG. 1 is a flow chart of a manufacturing method of a TC4 titanium alloy wire according to an embodiment of the invention.
FIG. 2 is a longitudinal metallographic view of hot rolled TC4 titanium alloy wire according to an embodiment of the present invention.
FIG. 3 is a transverse metallographic diagram of hot rolled TC4 titanium alloy wire according to an embodiment of the invention.
FIG. 4 is a longitudinal gold phase diagram of a TC4 titanium alloy wire produced by conventional hot-drawing.
FIG. 5 is a transverse gold phase diagram of a conventional hot-drawn TC4 titanium alloy wire produced by hot-drawing according to an embodiment of the present invention.
Fig. 6 is a cross-sectional metallographic phase of Φ 6.0mmTC4 provided by an embodiment of the present invention.
Fig. 7 is a longitudinal section metallographic phase of Φ 6.0mmTC4 provided by an embodiment of the present invention.
Fig. 8 is a cross-sectional metallographic phase of phi 5.0mmTC4 provided by an embodiment of the present invention.
Fig. 9 is a longitudinal section metallographic phase of Φ 5.0mmTC4 provided by an embodiment of the present invention.
FIG. 10 is a longitudinal gold phase diagram of hot-drawing of TC4 titanium alloy wire imported from abroad according to an embodiment of the invention.
FIG. 11 is a transverse gold phase diagram of hot-drawing of TC4 titanium alloy wire imported from abroad according to an embodiment of the invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.
It should be noted that the TC4 titanium alloy wire prepared by the preparation method of the TC4 titanium alloy wire provided by the embodiment of the invention can be applied to high-toughness fastener titanium alloy, high-toughness medical locking screw titanium alloy, high-toughness medical spine connecting rod titanium alloy and medical high-frequency ultrasonic scalpel bit titanium alloy, and particularly, the TC4 titanium alloy wire provided by the embodiment of the invention can be used for preparing a metal locking bone fracture plate system or a metal spine internal fixator system.
Example 1
Please refer to fig. 1. The preparation method of the TC4 titanium alloy wire provided by the embodiment of the invention comprises the following steps:
s110, obtaining a TC4 titanium alloy ingot smelted by three times of VAR;
s120, forging the TC4 titanium alloy ingot, and rolling the forged TC4 titanium alloy bar blank to obtain a rolled bar blank;
s130, hot-rolling the rolled bar blank and peeling to obtain a semi-finished product;
s140, hot continuous rolling and rolling the semi-finished product by a roller die to be hot rounded, and peeling to phi 5.25-phi 6.25 mm;
s150, stress relief annealing heat treatment, straightening and grinding to phi 5.0-phi 6.0mm to obtain the TC4 titanium alloy wire.
The roundness of phi 5.25-phi 6.25mm after hot continuous rolling, hot round sizing and peeling is controllable, the tolerance is controlled within 0.05mm, the surface of the wire is smooth, uniform and consistent, and obvious surface defects such as cracks, folding, indentation, sticking, scratching and the like are avoided.
Compared with the traditional hot drawing, the product has obvious difference, the wiredrawing texture is controlled, and the performance of the tested material meets the requirements of related application fields. The TC4ELI titanium alloy phi 5.0-phi 6.0mm bar can obtain high strength and high toughness Rm which is more than or equal to 1030MPa, Rp0.2 which is more than or equal to 900MPa, A which is more than or equal to 15 percent, fine isometric alfa phase morphology, and small difference of transverse and longitudinal grain morphology.
It should be noted that the existing cold continuous rolling has the following disadvantages: the alloy is easy to crack and lose efficacy due to work hardening in the deformation process, repeated intermediate annealing treatment is needed, the process is complicated, and the method is not suitable for TC4 two-phase titanium alloys. Therefore, in the scheme provided by the embodiment, the hot continuous rolling mode is adopted, and the continuous pressure processing of the titanium alloy wire with one-fire large deformation can be realized.
It should be noted that the scheme provided in this embodiment may be implemented in the following specific manner, and of course, the protection scope of the scheme provided in this embodiment is not limited to the following specific process, which is specifically as follows:
1. designing and smelting components: selecting 0-grade sponge titanium, a component TC4ELI, smelting an ingot by three-time VAR, and designing a target range value of each element: 6.0 to 6.5 percent of Al, 4.0 to 4.5 percent of V, 0.10 to 0.13 percent of O, 0.15 to 0.20 percent of Fe, less than or equal to 0.01 percent of N, less than or equal to 0.03 percent of C and less than or equal to 0.003 percent of H.
2. Forging, rolling, drawing and finishing: forging ingot at 1150 deg.C to phi 150mm, rolling ingot at 945 deg.C to phi 60mm, rolling ingot at 910 deg.C to phi 10.0mm, hot-rolling to phi 9.5mm, peeling to phi 9.0mm, detecting flaw, hot continuous rolling to phi 5.8-phi 6.8mm (heating temperature 880-+0.05-Φ6.25+0.05mm → stress relief annealing, straightening and grinding of phi 5.0-phi 6.0 mm.
According to the scheme provided by the embodiment of the invention, the hot continuous rolling is used for replacing the existing processing technology, the compressive stress in the rolling process is a deformation mode, the hot continuous rolling method is already applied to the processing of foreign titanium alloy wires, the production efficiency can be effectively improved in the processing of coiled wires of fasteners, the wires with high strength, high toughness and high surface quality are obtained, the metallographic structure difference of the transverse and longitudinal sections is small, and the comprehensive mechanical properties of the materials are excellent. The method solves the problems of low efficiency and severe processing environment of hot-drawing processing of the wire material in the current traditional mode, reduces the anisotropy and the texture of the material, and improves the performance of the material. The target is applied to medical high-toughness high-torsion wire materials, ultrasonic knife bar materials and hot heading/cold heading fastener wire materials. Covering wire products with the diameter of below 7 mm. Compared with the traditional hot drawing, the product has obvious difference, the wiredrawing texture is controlled, and the performance of the tested material meets the requirements of related application fields. The TC4ELI titanium alloy phi 5.0-phi 6.0mm bar can obtain high strength and high toughness Rm which is more than or equal to 1030MPa, Rp0.2 which is more than or equal to 900MPa, A which is more than or equal to 15 percent, fine isometric alfa phase morphology, and small difference of transverse and longitudinal grain morphology.
In one embodiment, the TC4 titanium alloy bar has an elemental composition: al:6.0-6.5, V:4.0-4.5, O:0.10-0.13, Fe:0.15-0.20 percent, less than or equal to 0.01 percent of N, less than or equal to 0.03 percent of C, and less than or equal to 0.003 percent of H.
In one embodiment, the TC4 titanium alloy ingot is forged at 1150 ℃ to obtain a TC4 titanium alloy bar with a diameter of phi 150 mm.
In one embodiment, rolling a forged TC4 titanium alloy bar to produce a rolled bar comprises:
the temperature is 945 ℃, and the forged TC4 titanium alloy bar billet is rolled to phi 60 mm; and (3) rolling the TC4 titanium alloy bar billet with the diameter of phi 60mm to the diameter of phi 10.0mm at the temperature of 910 ℃ to obtain a rolled bar billet.
In one embodiment, hot-gauging said rolled bar and skinning to obtain a semi-finished product comprises:
hot gauge rounding the rolled bar stock to phi 9.5mm, peeling to phi 9 mm; and (5) carrying out flaw detection on the semi-finished product with the diameter of phi 9mm to obtain the semi-finished product meeting the preset standard.
In one embodiment, hot continuous rolling and roll-molding hot-rounding the semi-finished product and scalping to Φ 5.25- Φ 6.25mm comprises:
continuously rolling the semi-finished product to phi 5.8-phi 6.8mm under the temperature of 880-900 ℃;
under the condition of 750-780 ℃ of temperature, rolling the hot continuous rolled semi-finished productPerforming hot sizing to phi 5.3-phi 6.3 mm; peeling the semi-finished product subjected to hot sizing of the roller die to phi 5.25+0.05-Φ6.25+0.05mm。
In one embodiment, the material of the TC4 titanium alloy bar stock is grade 0 titanium sponge.
The TC4 titanium alloy wire is prepared by the method.
The embodiment of the invention provides a TC4 titanium alloy wire and a preparation method thereof, and the preparation method comprises the following steps: obtaining a TC4 titanium alloy ingot smelted by three times of VAR; forging the TC4 titanium alloy ingot, and rolling the forged TC4 titanium alloy bar blank to obtain a rolled bar blank; hot rolling the rolled bar blank and peeling to obtain a semi-finished product; hot continuous rolling and rolling the semi-finished product into a round shape by a roller die, and peeling to phi 5.25-phi 6.25 mm; and (4) stress relief annealing heat treatment, straightening and grinding to phi 5.0-phi 6.0mm to obtain the TC4 titanium alloy wire. According to the scheme provided by the embodiment of the invention, the hot drawing is utilized to replace the existing processing technology, the compressive stress in the rolling process is a deformation mode, the hot drawing method is already applied to the processing of foreign titanium alloy wires, the production efficiency can be effectively improved in the processing of coiled wires of fasteners, the wires with high strength, high toughness and high surface quality are obtained, the metallographic structure difference of the transverse and longitudinal sections is small, and the comprehensive mechanical properties of the materials are excellent. The method solves the problems of low efficiency and severe processing environment of hot-drawing processing of the wire material in the current traditional mode, reduces the anisotropy and the texture of the material, and improves the performance of the material. The target is applied to medical high-toughness high-torsion wire materials, ultrasonic knife bar materials and hot heading/cold heading fastener wire materials. Covering wire products with the diameter of below 7 mm. Compared with the traditional hot drawing, the product has obvious difference, the wiredrawing texture is controlled, and the performance of the tested material meets the requirements of related application fields. The TC4ELI titanium alloy phi 5.0-phi 6.0mm bar can obtain high strength and high toughness Rm which is more than or equal to 1030MPa, Rp0.2 which is more than or equal to 900MPa, A which is more than or equal to 15 percent, fine isometric alfa phase morphology, and small difference of transverse and longitudinal grain morphology.
Referring to fig. 2-5, the metallographic phase diagrams shown in fig. 2 and 3 are transverse longitudinal metallographic phase diagrams of a titanium alloy wire with a diameter of 6.0mm provided in this example, the metallographic phase diagrams shown in fig. 4 and 5 are transverse longitudinal metallographic phase diagrams of a titanium alloy wire with a diameter of 6.0mm manufactured by a conventional hot-drawing technique, and the metallographic phase diagrams shown in fig. 10 and 11 are transverse longitudinal metallographic phase diagrams of a titanium alloy wire with a diameter of 6.0mm purchased abroad, which are obtained by comparison:
1. compared with the traditional hot drawing, the hot continuous rolling has the advantages that the metallographic phase is obviously improved in the longitudinal direction (the longitudinal fiber characteristics are weakened), and the grain size is smaller.
2. Compared with foreign materials, the grain size is obviously fine, and the metallographic longitudinal fiber characteristic is weaker.
The two-point comparison analysis shows that the hot continuous rolling processing mode has obvious advantages in refining material grains and obvious attenuation effect on longitudinal grain fiber elongation of the bar.
And (3) performance testing:
referring to fig. 6-9, fig. 6 and 7 are schematic diagrams of cross-sectional and longitudinal cross-sectional metallic phase diagrams of Φ 6.0mmTC4 according to an embodiment of the present invention, and fig. 8 and 9 are schematic diagrams of cross-sectional and longitudinal cross-sectional metallic phase diagrams of Φ 5.0mmTC4 according to an embodiment of the present invention.
In the process of preparing the high-strength TC4 titanium alloy wire with the diameter of 6.0mm by adopting the preparation method of the high-strength TC4 titanium alloy wire provided by the embodiment of the invention, the performance change of the TC4 titanium alloy is as follows:
in the process of preparing the high-strength TC4 titanium alloy wire with the phi 5.0 by adopting the preparation method of the high-strength TC4 titanium alloy wire provided by the embodiment of the invention, the performance change of the TC4 titanium alloy is as follows:
it is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A preparation method of TC4 titanium alloy wire is characterized by comprising the following steps:
obtaining a TC4 titanium alloy ingot smelted by three times of VAR;
forging the TC4 titanium alloy ingot, and rolling the forged TC4 titanium alloy bar blank to obtain a rolled bar blank;
hot rolling the rolled bar blank and peeling to obtain a semi-finished product;
hot continuous rolling and rolling the semi-finished product into a round shape by a roller die, and peeling to phi 5.25-phi 6.25 mm;
and (4) stress relief annealing heat treatment, straightening and grinding to phi 5.0-phi 6.0mm to obtain the TC4 titanium alloy wire.
2. The method of making a TC4 titanium alloy wire of claim 1, wherein the TC4 titanium alloy bar blank has an elemental composition: al:6.0-6.5, V:4.0-4.5, O:0.10-0.13, Fe:0.15-0.20 percent, less than or equal to 0.01 percent of N, less than or equal to 0.03 percent of C, and less than or equal to 0.003 percent of H.
3. The method for preparing the TC4 titanium alloy wire according to claim 1, wherein in the forging of the TC4 titanium alloy bar, the forging temperature is 1150 ℃, and the diameter of the forged TC4 titanium alloy bar is phi 150 mm.
4. The method of manufacturing a TC4 titanium alloy wire according to claim 1, wherein rolling a forged TC4 titanium alloy bar to obtain a rolled bar comprises:
the temperature is 945 ℃, and the forged TC4 titanium alloy bar billet is rolled to phi 60 mm;
and (3) rolling the TC4 titanium alloy bar billet with the diameter of phi 60mm to the diameter of phi 10.0mm at the temperature of 910 ℃ to obtain a rolled bar billet.
5. The method of preparing a TC4 titanium alloy wire according to claim 1, wherein hot-rolling and scalping the rolled bar stock to obtain a semi-finished product comprises:
hot gauge rounding the rolled bar stock to phi 9.5mm, peeling to phi 9 mm;
and (5) carrying out flaw detection on the semi-finished product with the diameter of phi 9mm to obtain the semi-finished product meeting the preset standard.
6. The method of preparing the TC4 titanium alloy wire of claim 1, wherein hot continuous rolling and roll-die hot-rounding the semi-finished product and skinning to Φ 5.25- Φ 6.25mm comprises:
continuously rolling the semi-finished product to phi 5.8-phi 6.8mm under the temperature of 880-900 ℃;
under the condition of the temperature of 750-780 ℃, hot sizing the semi-finished product roller die after hot continuous rolling to phi 5.3-phi 6.3 mm;
peeling the semi-finished product subjected to hot sizing of the roller die to phi 5.25+0.05-Φ6.25+0.05mm。
7. The method for preparing the TC4 titanium alloy wire according to claim 1, wherein the TC4 titanium alloy bar is grade 0 titanium sponge.
8. A TC4 titanium alloy wire produced by the method of any one of claims 1 to 7.
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| CN116727587A (en) * | 2023-08-11 | 2023-09-12 | 成都先进金属材料产业技术研究院股份有限公司 | TB5 titanium alloy wire and preparation method thereof |
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