CN114733926A - Preparation method and preparation device of titanium alloy wire - Google Patents
Preparation method and preparation device of titanium alloy wire Download PDFInfo
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- CN114733926A CN114733926A CN202210449232.XA CN202210449232A CN114733926A CN 114733926 A CN114733926 A CN 114733926A CN 202210449232 A CN202210449232 A CN 202210449232A CN 114733926 A CN114733926 A CN 114733926A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- 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
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Abstract
The embodiment of the invention discloses a preparation method and a preparation device of a titanium alloy wire, which comprises the following steps: obtaining a blank; hot rolling the blank to obtain a hot rolled bar blank having a predetermined diameter; rounding and peeling the hot-rolled bar blank to obtain a blank to be drawn; and continuously drawing the blank to be drawn to obtain the titanium alloy wire. The titanium alloy material can generate 'alpha + beta → beta' phase transformation by heating in the hot rolling process through hot rolling the blank, and the axial texture formed by material drawing forging and cogging rolling is eliminated, so that the consistency of the performance of the transverse and longitudinal structures is obtained. The titanium alloy wire is prepared by continuously drawing the blank to be drawn, so that the bar subjected to hot rolling can be formed into the titanium alloy wire at one time, and the consistency of the titanium alloy wire is further improved.
Description
Technical Field
The invention belongs to the technical field of titanium alloy wire preparation, and particularly relates to a preparation method and a preparation device of a titanium alloy wire.
Background
The traditional titanium alloy wire is subjected to hot drawing of a hole die lubricated by graphite emulsion for reducing, the efficiency is low, the accumulated one-way drawing plastic deformation is processed, the plastic deformation process of the material is mainly axial tensile stress deformation and assisted by radial compressive stress, sliding friction is formed between the material and the wall of the die hole, the grains of the wire are preferentially oriented along the axial direction, the transverse and longitudinal tissue difference is obvious, particularly, the longitudinal tissue grains are elongated, so that the axial and longitudinal performances are obviously different, the longitudinal elastic modulus is low, and the plastic deformation is poor.
Disclosure of Invention
The invention provides a preparation method and a preparation device of a titanium alloy wire, which are used for solving the technical problems that when a titanium alloy is stretched, the longitudinal elastic modulus of the titanium alloy is low, the axial performance and the longitudinal performance are obviously different, and the plastic deformation is poor.
In order to solve the technical problem, the preparation method of the titanium alloy wire disclosed by the embodiment of the invention comprises the following steps:
obtaining a blank;
hot rolling the blank to obtain a hot rolled bar blank having a predetermined diameter;
rounding and peeling the hot-rolled bar blank to obtain a blank to be drawn;
and continuously drawing the blank to be drawn to obtain the titanium alloy wire.
Optionally, in the step of obtaining the blank, the blank is a phi 30 rolled bar titanium alloy blank.
Optionally, the step of hot rolling the slab to obtain a hot rolled bar having a predetermined diameter comprises:
heating the blank to 800 ℃, keeping the temperature for 30min, and cooling to room temperature;
and carrying out primary rolling on the cooled blank, and carrying out secondary rolling on the blank after the primary rolling to obtain a hot-rolled bar blank with a preset diameter.
Optionally, before the step of performing secondary rolling on the billet after the primary rolling to obtain a hot-rolled bar billet with a predetermined diameter, the method further comprises:
heating the blank after the primary rolling to 300-500 ℃, keeping the temperature for 5min, and cooling to room temperature.
Optionally, the blank to be drawn is continuously drawn to obtain the titanium alloy wire, wherein the diameter of the titanium alloy wire is phi 5.3-phi 6.3.
Optionally, the diameter of the hot-rolled bar stock is phi 15-phi 20.
In a second aspect, the present application provides an apparatus for preparing a titanium alloy wire, comprising:
a heating device for heating the billet;
a hot rolling mill for rolling the heated billet to obtain a hot rolled bar having a predetermined diameter;
the round sizing and skinning equipment is used for rounding and skinning the hot rolled bar billet to obtain a billet to be drawn;
and the continuous drawing equipment is used for continuously drawing the blank to be drawn to prepare the titanium alloy wire.
Optionally, the continuous drawing apparatus comprises:
the first drawing assembly is used for drawing the blank to be drawn for one time;
the second drawing assembly is used for carrying out secondary drawing on the blank to be drawn which is subjected to primary drawing;
the first drawing assembly is located on one side of the second drawing assembly, the first drawing assembly and the second drawing assembly are sequentially arranged along the drawing direction of the titanium alloy wire to be drawn, the blank to be drawn sequentially passes through the first drawing assembly and the second drawing assembly, and the material after the drawing of the second drawing assembly is the titanium alloy wire.
Optionally, the first drawing assembly includes: a first base; the first drawing die is arranged on the first base and is used for drawing the titanium alloy wire to be drawn for one time; the first wrapping post is arranged on the first base and located on one side of the first drawing die, and the first drawing die is located between the first wrapping post and the rotary disc and used for winding titanium alloy wires to be drawn through one-time drawing.
Optionally, the second drawing assembly includes: a second frame; the second drawing die is arranged on the second machine base and is used for carrying out secondary drawing on the titanium alloy wire to be drawn; the second wrapping post sets up on the second frame, and is located one side of second drawing die utensil, second drawing die utensil is located the second wrapping post with between the carousel for the winding is through the titanium alloy silk material of waiting to draw that the secondary was drawn.
The embodiment of the invention discloses a preparation method and a preparation device of a titanium alloy wire, which comprises the following steps: obtaining a blank; hot rolling the blank to obtain a hot rolled bar blank having a predetermined diameter; rounding and peeling the hot-rolled bar blank to obtain a blank to be drawn; and continuously drawing the blank to be drawn to obtain the titanium alloy wire. The titanium alloy material can generate 'alpha + beta → beta' phase transformation by heating in the hot rolling process through hot rolling the blank, and the axial texture formed by material drawing forging and cogging rolling is eliminated, so that the consistency of the performance of the transverse and longitudinal structures is obtained. The titanium alloy wire is prepared by continuously drawing the blank to be drawn, so that the bar subjected to hot rolling can be formed into the titanium alloy wire at one time, and the consistency of the titanium alloy wire is further improved.
Drawings
FIG. 1 is a flow chart of a method for preparing a titanium alloy wire provided by the present application.
FIG. 2 is a metallographic structure morphology diagram of a cross section and a longitudinal section of a titanium alloy billet after hot rolling.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
At present, the traditional titanium alloy wire is subjected to hot drawing of a hole die lubricated by graphite emulsion for reducing, the efficiency is low, the accumulated unidirectional drawing plastic deformation is processed, the plastic deformation process of the material is mainly axial tensile stress deformation and assisted by radial compressive stress, sliding friction is formed between the material and the wall of the die hole, the crystal grains of the wire are preferentially oriented along the axial direction, the transverse and longitudinal tissue difference is obvious, particularly, the longitudinal tissue crystal grains are elongated, so that the axial and longitudinal performance difference is caused, the longitudinal elastic modulus is low, and the plastic deformation difference is caused.
Based on the technical problem that this application will solve, in order to ensure the uniformity of finished product titanium alloy silk material, can improve through two aspects, firstly, through heating and rolling the blank, through predetermined heating temperature alright with the uniformity that makes the blank better, and then establish good basis for follow-up preparation finished product titanium alloy silk material, secondly, can place drawing process many times originally on drawing equipment through the mode of drawing in succession, and then make the titanium alloy silk material through drawing in succession, through above-mentioned two points, alright in order to improve the uniformity of titanium alloy silk material.
Based on the above conception, the applicant conceives the technical scheme of the present application, specifically as follows:
referring to fig. 1 and 2, a method for preparing a titanium alloy wire disclosed by the embodiment of the invention comprises the following steps: step S110-step S140.
And S110, obtaining a blank.
And S120, carrying out hot rolling on the blank to obtain a hot-rolled bar blank with a preset diameter.
And S130, rounding and peeling the hot-rolled bar blank to obtain a blank to be drawn.
And S140, continuously drawing the blank to be drawn to obtain the titanium alloy wire.
In this exemplary embodiment, a method and an apparatus for manufacturing a titanium alloy wire according to an embodiment of the present invention include: obtaining a blank; hot rolling the blank to obtain a hot rolled bar blank having a predetermined diameter; rounding and peeling the hot-rolled bar blank to obtain a blank to be drawn; and continuously drawing the blank to be drawn to obtain the titanium alloy wire. The titanium alloy material can generate 'alpha + beta → beta' phase transformation by heating in the hot rolling process through hot rolling the blank, and the axial texture formed by material drawing forging and cogging rolling is eliminated, so that the consistency of the performance of the transverse and longitudinal structures is obtained. The titanium alloy wire is prepared by continuously drawing the blank to be drawn, so that the bar subjected to hot rolling can be formed into the titanium alloy wire in one step, and the consistency of the titanium alloy wire is further improved.
In this embodiment, the technical solution of the present application is further described in detail with reference to fig. 1 and fig. 2, which specifically include the following:
the embodiment of the invention discloses a preparation method of a titanium alloy wire, which comprises the following steps: step S110-step S140.
And S110, obtaining a blank.
In the present exemplary embodiment, the blank may be a wire blank having a diameter larger than that of the finished titanium alloy wire, or may be a titanium alloy rod, and the type of the blank is not limited in the present application.
In this exemplary embodiment, the manner of preparing the above-described billet includes:
and obtaining the grade 0 titanium sponge. Wherein, in the 0-grade sponge titanium, C is less than or equal to 0.03wt percent, and N is less than or equal to 0.01wt percent; and (5) obtaining an addition raw material. The raw material addition comprises the following steps: TiO2 and TiFe 30; TiO2 is added to the grade 0 titanium sponge, with the addition being based on the weight percentage of oxygen in the grade 0 titanium sponge being in the range of (0.13-0.18) wt%. Adding TiFe30 into the grade 0 titanium sponge, wherein the addition standard is that the weight percentage of iron in the grade 0 titanium sponge is in the range of (0.15-0.20) wt%, and obtaining a mixed raw material. And carrying out twice vacuum consumable melting on the mixed raw materials to obtain an ingot. And forging, machining and pre-drawing the cast ingot to obtain a blank.
Specifically, in the present invention, an additive element is added to the billet. In order to solve the problems of hot working with ultra-large deformation and the requirement of obtaining high strength and high plasticity (the tensile strength Rm is more than or equal to 500MPa and the elongation A is more than or equal to 20%) of the blank, elements of the blank are specially designed, the microalloying regulation and control of O and Fe are mainly reflected, and the titanium sponge grade and the content of the impurity C, N of the raw material used by the blank are limited, which is the key point that the titanium alloy wire can realize the roll-type rolling with ultra-large deformation.
And S120, carrying out hot rolling on the blank to obtain a hot-rolled bar blank with a preset diameter.
In the embodiment, the blank is hot rolled firstly, so that the uniformity of the blank can be gradually adjusted in the hot rolling process, and the uniformity of the finished titanium alloy wire is further improved.
And S130, rounding and peeling the hot-rolled bar blank to obtain a blank to be drawn.
And S140, continuously drawing the blank to be drawn to obtain the titanium alloy wire.
In the embodiment, in order to ensure the consistency of the finished titanium alloy wire, the improvement can be carried out through two aspects, firstly, the blank is heated and rolled, the consistency of the blank can be better through the preset heating temperature, a good foundation is laid for the subsequent preparation of the finished titanium alloy wire, secondly, the original multiple drawing process can be placed on one drawing device through a continuous drawing mode, the titanium alloy wire is prepared through continuous drawing, and the consistency of the titanium alloy wire can be improved through the two aspects.
In a specific embodiment, the step of obtaining the billet is to obtain the titanium alloy billet with the diameter of 30 mm.
In one embodiment, the step of hot rolling the billet to obtain a hot rolled bar having a predetermined diameter comprises:
heating the blank to 800 ℃, keeping the temperature for 30min, and cooling to room temperature;
and carrying out primary rolling on the cooled blank, and carrying out secondary rolling on the blank after the primary rolling to obtain a hot-rolled bar blank with a preset diameter.
In one embodiment, before the step of secondarily rolling the primarily rolled slab to obtain a hot rolled bar having a predetermined diameter, the method further comprises:
and heating the blank after the primary rolling to 300-500 ℃, keeping the temperature for 5min and then cooling to room temperature.
In a specific embodiment, the blank to be drawn is continuously drawn to obtain the titanium alloy wire, and the diameter of the titanium alloy wire is phi 5.3-phi 6.3 mm.
In a specific embodiment, the diameter of the hot rolled bar is Φ 15- Φ 20 mm.
In a second aspect, the present application provides an apparatus for preparing a titanium alloy wire, comprising: a heating device for heating the billet; a hot rolling mill for rolling the heated billet to obtain a hot rolled bar having a predetermined diameter; the rounding and skinning equipment is used for rounding and skinning the hot-rolled bar billet to obtain a blank to be drawn; and the continuous drawing equipment is used for continuously drawing the blank to be drawn to prepare the titanium alloy wire.
In this example embodiment, the first drawing assembly is used for drawing the titanium alloy wire for one time, the second drawing assembly is used for drawing the titanium alloy wire for two times, and the two drawing processes are integrated on one device, so that the drawing continuity can be improved, the transfer process is reduced, the workload of operators is reduced, the drawing efficiency is improved, and the consistency of finished products of the titanium alloy wire is improved.
In this example embodiment, this application draws the subassembly through set up the twice on same equipment, draws the subassembly in this application and the second in this application promptly, draws the titanium alloy silk material after the subassembly pulling through first and directly enters into the second and draws the subassembly, and then draws for the second time, can effectual improvement draw efficiency to and the uniformity of titanium alloy silk material after the pulling.
In a particular embodiment, the continuous drawing apparatus comprises: the first drawing assembly is used for drawing the blank to be drawn for one time; the second drawing assembly is used for carrying out secondary drawing on the blank to be drawn which is subjected to primary drawing; the first drawing assembly is located on one side of the second drawing assembly, the first drawing assembly and the second drawing assembly are sequentially arranged along the drawing direction of the titanium alloy wire to be drawn, the blank to be drawn sequentially passes through the first drawing assembly and the second drawing assembly, and the material after the drawing of the second drawing assembly is the titanium alloy wire.
In one embodiment, the first drawing assembly comprises: a first base; the first drawing die is arranged on the first machine base and is used for drawing the titanium alloy wire to be drawn for one time; the first wrapping post is arranged on the first base and located on one side of the first drawing die, and the first drawing die is located between the first wrapping post and the rotary disc and used for winding the titanium alloy wire to be drawn through one-time drawing.
In this exemplary embodiment, the first drawing die may be an existing first drawing die, and may be obtained by direct purchase, and the first drawing die is not limited in this application. The first drawing die can be fixedly connected to the first base through bolts, can also be fixedly connected to the first base through other fixed connection modes, and can be fixedly connected to the first base through the plate-shaped structure.
In one embodiment, the second drawing assembly comprises: a second frame; the second drawing die is arranged on the second machine base and is used for carrying out secondary drawing on the titanium alloy wire to be drawn; the second wrapping post sets up on the second frame, and is located one side of second drawing die utensil, second drawing die utensil is located the second wrapping post with between the carousel for the winding is through the titanium alloy silk material of waiting to draw that the secondary was drawn.
In the present exemplary embodiment, the second winding post is formed in a cylindrical shape, and in order to better separate the drawn titanium alloy wire wound around the second winding post from the second winding post, the second winding post may be formed to have a large outer diameter at the top end and a small outer diameter at the bottom end, in the using process, the titanium alloy wire wound on the second winding post gradually moves towards the bottom end of the second winding post under the action of self gravity and finally falls on the bearing structure, in the actual production process, after drawing and accomplishing, the operator can directly will accept the structure and separate with the second wrapping post, the transportation place by the structure of accepting of titanium alloy silk material to the predetermined place can, need not to use the manual work to take off the titanium alloy silk material of winding on the second wrapping post, reduced operator's intensity of labour, improved the transportation efficiency of titanium alloy silk material, and then improved and drawn efficiency.
In one embodiment, the device further comprises a leveling mechanism; the leveling mechanism includes: the cylinder is fixedly connected to the second base; the connecting column is arranged at the telescopic end of the cylinder; and the roller component is connected to the other end of the connecting column, and the air cylinder stretches and retracts to drive the connecting column and the roller component arranged at the end part of the connecting column to synchronously move so as to utilize the roller component to level and wind the titanium alloy wires on the second winding column.
It should be noted that the above-described embodiments are only some of the claimed embodiments, and not all of the claimed embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments in the application without any creative effort, shall fall within the scope of protection of the application. In the present specification, each embodiment is described with emphasis on differences from other embodiments, and the same and similar parts between the embodiments may be referred to each other.
Claims (10)
1. A preparation method of a titanium alloy wire is characterized by comprising the following steps:
obtaining a blank;
hot rolling the blank to obtain a hot rolled bar blank having a predetermined diameter;
rounding and peeling the hot-rolled bar blank to obtain a blank to be drawn;
and continuously drawing the blank to be drawn to obtain the titanium alloy wire.
2. The method for preparing the titanium alloy wire according to claim 1, wherein the step of obtaining the billet is to obtain a phi 30 rolled bar titanium alloy billet.
3. The method of producing a titanium alloy wire according to claim 1, wherein the step of hot rolling the billet to obtain a hot rolled bar billet having a predetermined diameter comprises:
heating the blank to 800 ℃, keeping the temperature for 30min, and cooling to room temperature;
and carrying out primary rolling on the cooled blank, and carrying out secondary rolling on the blank after the primary rolling to obtain a hot-rolled bar blank with a preset diameter.
4. The method for producing a titanium alloy wire according to claim 3, wherein before the step of performing the secondary rolling of the primary-rolled ingot to obtain a hot-rolled bar having a predetermined diameter, the method further comprises:
and heating the blank after the primary rolling to 300-500 ℃, keeping the temperature for 5min and then cooling to room temperature.
5. The method for preparing the titanium alloy wire according to claim 1, wherein the step of continuously drawing the blank to be drawn is performed to obtain the titanium alloy wire, and the diameter of the titanium alloy wire is phi 5.3 to phi 6.3.
6. The method of producing a titanium alloy wire according to claim 1, wherein the diameter of the hot-rolled bar is Φ 15 to Φ 20.
7. A preparation device for titanium alloy wires is characterized by comprising:
a heating device for heating the billet;
a hot rolling mill for rolling the heated billet to obtain a hot rolled bar having a predetermined diameter;
the rounding and skinning equipment is used for rounding and skinning the hot-rolled bar billet to obtain a blank to be drawn;
and the continuous drawing equipment is used for continuously drawing the blank to be drawn to prepare the titanium alloy wire.
8. The apparatus for producing a titanium alloy wire according to claim 7, wherein the continuous drawing device comprises:
the first drawing assembly is used for drawing the blank to be drawn for one time;
the second drawing assembly is used for carrying out secondary drawing on the blank to be drawn which is subjected to primary drawing;
the first drawing assembly is located on one side of the second drawing assembly, the first drawing assembly and the second drawing assembly are sequentially arranged along the drawing direction of the titanium alloy wire to be drawn, the blank to be drawn sequentially passes through the first drawing assembly and the second drawing assembly, and the material after the drawing of the second drawing assembly is the titanium alloy wire.
9. The apparatus of preparing a titanium alloy wire according to claim 8, wherein the first drawing assembly includes: a first base; the first drawing die is arranged on the first machine base and is used for drawing the titanium alloy wire to be drawn for one time; the first winding post is arranged on the first base and located on one side of the first drawing die, and the first drawing die is used for winding the titanium alloy wire to be drawn through one-time drawing.
10. The apparatus for preparing a titanium alloy wire according to claim 8, wherein the second drawing assembly comprises: a second frame; the second drawing die is arranged on the second machine base and is used for carrying out secondary drawing on the titanium alloy wire to be drawn; and the second winding post is arranged on the second base and is positioned on one side of the second drawing die, and the second drawing die is used for winding the titanium alloy wire to be drawn through secondary drawing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210449232.XA CN114733926A (en) | 2022-04-24 | 2022-04-24 | Preparation method and preparation device of titanium alloy wire |
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| CN202210449232.XA CN114733926A (en) | 2022-04-24 | 2022-04-24 | Preparation method and preparation device of titanium alloy wire |
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| EP1070558A2 (en) * | 1999-07-13 | 2001-01-24 | Bridgestone Corporation | Method of manufacturing titanium fiber or titanium alloy fiber |
| CN102581062A (en) * | 2012-02-16 | 2012-07-18 | 张家港华裕有色金属材料有限公司 | Method for producing seamless titanium and titanium alloy welded pipe |
| CN103191943A (en) * | 2013-04-08 | 2013-07-10 | 宝鸡钛业股份有限公司 | Titanium alloy wire production method |
| CN104668303A (en) * | 2015-01-27 | 2015-06-03 | 洛阳双瑞精铸钛业有限公司 | Processing method of excellent surgical implant TC4ELI titanium alloy sheet |
| CN110983104A (en) * | 2019-12-13 | 2020-04-10 | 中国科学院金属研究所 | High-strength high-plasticity heat-strength titanium alloy wire and processing and manufacturing method and application thereof |
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2022
- 2022-04-24 CN CN202210449232.XA patent/CN114733926A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2223928A1 (en) * | 1971-05-17 | 1972-11-23 | Sumitomo Electric Industries | Process for producing fine metal threads |
| EP1070558A2 (en) * | 1999-07-13 | 2001-01-24 | Bridgestone Corporation | Method of manufacturing titanium fiber or titanium alloy fiber |
| CN102581062A (en) * | 2012-02-16 | 2012-07-18 | 张家港华裕有色金属材料有限公司 | Method for producing seamless titanium and titanium alloy welded pipe |
| CN103191943A (en) * | 2013-04-08 | 2013-07-10 | 宝鸡钛业股份有限公司 | Titanium alloy wire production method |
| CN104668303A (en) * | 2015-01-27 | 2015-06-03 | 洛阳双瑞精铸钛业有限公司 | Processing method of excellent surgical implant TC4ELI titanium alloy sheet |
| CN110983104A (en) * | 2019-12-13 | 2020-04-10 | 中国科学院金属研究所 | High-strength high-plasticity heat-strength titanium alloy wire and processing and manufacturing method and application thereof |
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