CN112974531A - Controllable short-process preparation system for preparing titanium alloy wire by continuous casting and rolling - Google Patents
Controllable short-process preparation system for preparing titanium alloy wire by continuous casting and rolling Download PDFInfo
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- CN112974531A CN112974531A CN202110039078.4A CN202110039078A CN112974531A CN 112974531 A CN112974531 A CN 112974531A CN 202110039078 A CN202110039078 A CN 202110039078A CN 112974531 A CN112974531 A CN 112974531A
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 121
- 238000005096 rolling process Methods 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 238000009749 continuous casting Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 152
- 238000010438 heat treatment Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000004781 supercooling Methods 0.000 abstract description 6
- 229910000734 martensite Inorganic materials 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000000126 substance Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
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- 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
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- 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
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
-
- 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
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
Abstract
The invention belongs to the technical field of preparation of titanium alloy wires, and provides a controllable short-process preparation system for preparing titanium alloy wires by continuous casting and rolling. Based on the influence of the cooling rate on the components of the titanium alloy, when the titanium alloy is excessive from a near-beta phase region to normal temperature after being rolled, the internal structure of the titanium alloy is greatly influenced by the supercooling degree, and if the supercooling degree is high, a martensite phase is easily generated in the titanium alloy, so that the mechanical property of the titanium alloy is easily influenced. After the wire enters the two-phase region, the temperature of the wire can be rapidly reduced to 400 ℃ by adopting a rapid cooling mode, and finally the wire is sent to a take-up device for taking up.
Description
Technical Field
The invention relates to the technical field of titanium alloy, in particular to a preparation technology of a titanium alloy wire, and particularly relates to a controllable short-process preparation system for preparing the titanium alloy wire by continuous casting and rolling.
Background
The titanium alloy has a series of unique physical characteristics of high strength, light weight, corrosion resistance and the like, is widely applied in many fields, and particularly has longer service life when being used for parts prepared by the titanium alloy in marine environment, chemical industry and other high-corrosion environments. However, the smelting and processing cost of the titanium alloy is high, on one hand, the rolling temperature zone of the titanium alloy is in a beta phase transformation zone, and the temperature is about 980-1050 ℃, so that the titanium alloy blank to be pre-rolled is often heated to the temperature zone, on the other hand, the heat conductivity of the titanium alloy is poor, the heating time is long, usually 2-3 hours, the production efficiency of the titanium alloy is low, and the energy consumption is too high, so that the production process also determines that the titanium alloy has high manufacturing cost and low production efficiency, and is difficult to be applied to wider practical application.
At present, modes such as a continuous casting and rolling process and a high-speed continuous rolling process are provided for processing titanium alloy wires (also called wires) and bars, the continuous rolling processes still do not get rid of the problem that secondary heating needs to be carried out on preprocessed blanks in the production aspect, namely, after the titanium bars are crystallized, heat compensation needs to be carried out through a heating furnace, the mode directly restricts the production efficiency of the titanium alloy bars, and the processing cost of titanium alloy finished products is increased. In addition, because the titanium alloy has poor thermal conductivity, a large temperature gradient is easily generated near the outer surface and the inner core of the blank in the temperature monitoring and feedback processes, the consistency of the processed cost components is not facilitated, and the change of a microstructure is caused, so that the difference and the deterioration of the physical and chemical properties are caused.
In order to solve the problem of low secondary heating efficiency of titanium alloy bars, a continuous hot-drawing rolling mode is usually adopted to process titanium alloy bars with phi 20 into wires with phi 6. Aiming at the mode of processing the titanium alloy wire by the continuous casting and rolling of the titanium alloy, according to the characteristics of the titanium alloy, the rolling temperature is kept in an alpha phase region above 950 ℃, and the chemical property of the titanium alloy is extremely active above 700 ℃, so that the key of the short-flow low-cost manufacturing and production of the continuous casting and rolling titanium alloy wire is how to control the chemical stability of the titanium alloy wire and keep the excellent internal microstructure after the continuous casting and rolling process.
Disclosure of Invention
The invention aims to provide a controllable short-process preparation system for preparing titanium alloy wires by continuous casting and rolling, which comprises a titanium alloy bar preparation device, an auxiliary heating furnace, a continuous hot drawing rolling device, a gradient cooling device, a quick cooling device and a take-up device;
the titanium alloy bar preparation device is used for preparing a titanium alloy bar through crystallizer crystallization;
the concurrent heating furnace is used for heating the titanium alloy bar so as to reach a preset continuous hot drawing rolling temperature range of the titanium alloy bar;
the continuous hot drawing rolling device is used for carrying out continuous hot drawing rolling on the titanium alloy bar subjected to heat compensation to roll a titanium alloy wire;
the gradient cooling device is connected with an outlet of the continuous hot drawing rolling device, and a three-section cooling section is adopted to cool the drawn titanium alloy wire; the three-section type cooling section is realized in a first section cooling furnace, a second section cooling furnace and a third section cooling furnace respectively, the constant temperature area set by the first section cooling furnace is in the range of 800-plus-900 ℃, the constant temperature area set by the second section cooling furnace is in the range of 700-plus-800 ℃, and the constant temperature area set by the third section cooling furnace is in the range of 600-plus-700 ℃;
the rapid cooling device comprises a cooling box connected with an outlet of the gradient cooling device, and at least one cooling channel and a compressed air rapid cooling device which are positioned in the cooling box, wherein the at least one cooling channel is used for receiving the titanium alloy wire subjected to gradient cooling from the gradient cooling device, and the compressed air rapid cooling device sucks cold air to perform heat exchange in the cooling channel so as to rapidly cool the titanium alloy wire;
and the take-up device is connected with an outlet of the quick cooling device and is used for receiving the cooled titanium alloy wires and taking up the wires.
By the above embodiment courseware of the invention, the remarkable beneficial effects are as follows: based on the influence of the cooling rate on the components of the titanium alloy, when the titanium alloy is excessive from a near-beta phase region to normal temperature after being rolled, the internal structure of the titanium alloy is greatly influenced by the supercooling degree, if the supercooling degree is high, a martensite phase is easily generated in the titanium alloy, and the mechanical property of the titanium alloy is easily influenced, so that in the preparation system, enough alpha phases are firstly ensured to be generated in the titanium alloy, and the titanium alloy wire can quickly enter a two-phase region. After the wire enters the two-phase region, the temperature of the wire can be rapidly reduced to 400 ℃ or even lower by adopting a rapid cooling mode, and finally the wire is sent into a take-up device to be wound and taken up.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a graphical representation of the effect of temperature reduction rate on the composition of TC4 titanium alloy.
FIG. 2 is a schematic view of a cooling curve of a titanium alloy wire in a controllable short-process preparation system for continuous casting and rolling of a titanium alloy wire according to an embodiment of the present invention.
FIG. 3 is a schematic view of a controllable short-flow manufacturing system for manufacturing titanium alloy wires by continuous casting and rolling according to an embodiment of the present invention.
FIG. 4 is a schematic diagram of a three-stage cooling section of a gradient cooling device according to an embodiment of the invention.
Fig. 5 is a schematic view of a rapid cooling device of an embodiment of the present invention.
Fig. 6 is a sectional illustration view along an air duct of the rapid cooling device of the embodiment of the present invention.
Fig. 7 is a schematic sectional view of the rapid cooling device of the embodiment of the present invention along the cooling tank.
Fig. 8 is a schematic view of a wire takeup device in an embodiment of the present invention.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
The controllable short-process preparation system for preparing titanium alloy wires by continuous casting and rolling in combination with the exemplary embodiment shown in fig. 3-8 comprises a titanium alloy bar preparation device 10, an annealing furnace 20, a continuous hot-drawing rolling device 30, a gradient cooling device 40, a rapid cooling device 50 and a take-up device 60.
The titanium alloy bar preparation device 10 is used for preparing titanium alloy bars, such as titanium alloy bars with the diameter ranges of phi 30 and phi 20 (unit mm) prepared by titanium sponge raw materials. The preparation system or production line can prepare the titanium alloy bar through crystallizer crystallization in a manner disclosed in the prior art with the publication number of CN 111676380A.
The heat supplementing furnace 20 is used for heating the titanium alloy bar to reach a preset continuous hot drawing rolling temperature interval of the titanium alloy bar. In an optional embodiment, the concurrent heating furnace is a resistance furnace, temperature detection devices such as a thermocouple and the like are arranged in the concurrent heating furnace for temperature detection and feedback, and the heating power of the resistance furnace is controlled to rapidly heat the titanium alloy bar passing through the resistance furnace to reach the temperature range of continuous hot-drawing rolling, such as the temperature range of 980-.
And the continuous hot drawing rolling device 30 is used for carrying out continuous hot drawing rolling on the titanium alloy bar subjected to heat compensation and rolling the titanium alloy wire. In an alternative embodiment, the continuous hot-drawing rolling apparatus 30 can be used to hot-roll large diameter bars to small diameter bars using existing hot-drawing apparatus.
And the gradient cooling device 40 is connected with an outlet of the continuous hot drawing rolling device 30, and adopts a three-section cooling section to cool the drawn titanium alloy wire.
Referring to fig. 4, the three-stage cooling section is implemented in the first, second and third section cooling furnaces, respectively, the first section cooling furnace is set to have a constant temperature region of 800-plus-900 ℃, the second section cooling furnace is set to have a constant temperature region of 700-plus-800 ℃, and the third section cooling furnace is set to have a constant temperature region of 600-plus-700 ℃.
Thus, in the embodiment of the present invention, as shown in fig. 1 and 2, based on the influence of the cooling rate on the composition of the titanium alloy, when the temperature of the titanium alloy is increased from the near-phase region to the normal temperature after rolling, the internal structure of the titanium alloy is greatly influenced by the supercooling degree, and if the supercooling degree is high, the martensite phase is easily generated in the titanium alloy, which easily influences the mechanical properties of the titanium alloy. Therefore, in the preparation system of the invention, the cooling curve based on fig. 2 is adopted, and firstly enough phases are generated in the titanium alloy, so that the titanium alloy wire can rapidly enter a two-phase region, the structure performance of the titanium alloy wire is improved, the chemical stability of the titanium alloy wire is maintained, and the internal excellent microstructure of the titanium alloy wire is kept. After the wire enters the two-phase region, a rapid cooling mode can be adopted to rapidly reduce the temperature of the wire to 400 ℃.
In conjunction with the rapid cooling device 50 shown in FIG. 5, as mentioned above, the wire enters the two-phase region, and the gradient-cooled titanium alloy wire is rapidly cooled by the rapid cooling device 50.
Referring to FIGS. 5, 6 and 7, the rapid cooling device 50 includes a cooling box 51 connected to the outlet of the gradient cooling device 40, and at least one cooling channel 52 and a compressed air rapid cooling device 53 located in the cooling box, wherein the at least one cooling channel 52 is used for receiving the titanium alloy wire subjected to gradient cooling from the gradient cooling device 40.
As shown in fig. 6 and 7, an inlet channel 52A and an outlet channel 52B are respectively arranged on two sides of the cooling channel 52, the titanium alloy wire enters the cooling channel through the inlet channel 52A, the compressed air rapid cooling device 53 sucks cold air to perform heat exchange in the cooling channel, the titanium alloy wire is rapidly cooled, and then the titanium alloy wire is conveyed out through the outlet channel 52B.
In combination with the illustration, the cooling box 51 is preferably a horizontally-transverse rectangular cooling box, and is provided with at least two cooling channels 52 therein, each cooling channel is configured as a groove along the longitudinal direction for the titanium alloy wire to pass through, the inlet of the cooling channel is connected to the outlet of the gradient cooling device, and the outlet of the cooling channel is connected to the take-up device.
Preferably, the compressed air rapid cooling device 53 includes an air duct 56 communicated with the cooling channel, a plurality of air ducts 56 are arranged at intervals along the direction of the cooling channel, and an air inlet duct 57 is arranged at the upper part of each air duct, connected to a compressed air cooling box 58, at least one air outlet duct 59 is correspondingly arranged below the groove of the cooling channel and in the range of the air duct, connected to the compressed air cooling box 58, a fan blade 56A is arranged inside each air duct, and is driven by a motor 56B to rotate to form negative pressure, so as to draw in cold air from the air inlet duct 57, and after heat exchange is carried out in the cooling channel 52, the cold air is discharged into the compressed air cooling box through the air outlet duct 59.
The compressed air cooling box is provided with a refrigerating device.
Preferably, an inert gas shielding gas, such as an argon shielding gas, is introduced into the three-stage cooling section of the gradient cooling device 40.
Preferably, a temperature measuring device is arranged in the three-section type cooling section of the gradient cooling device 40 and is used for detecting the temperature of the passing titanium alloy wire to adjust the heating temperature of the hearth according to the fact and keep the constant temperature range in different sections.
Thus, referring to fig. 2 and 4, the cooling and take-up device of the continuous casting and rolling device for titanium alloy wire according to the present invention is designed, and the cooling process curve of titanium alloy, especially TC4 titanium alloy, is considered and set according to the standard of fig. 2. Wherein the cooling process of cooling curve 1 st, 2, 3 sections is accomplished in the furnace body that has the syllogic cooling stove of resistance heating promptly resistance furnace respectively, and cooling curve 4 th section realizes rapid cooling in rapid cooling device 50.
Referring to fig. 4, argon gas is filled in the furnace body from 1 section to 3 sections as a protective atmosphere, the left side of the first section cooling furnace is connected with the outlet of the continuous hot drawing rolling device 30 (i.e. the rolling mill equipment), and the joint flange is designed with an air-tight device. The first section is designed to be a high-temperature area, the temperature of the first section is constant within the range of 800-900 ℃, and when rolled wires enter the furnace body of the first section, the temperature of a hearth can be adjusted in real time according to the temperature change of the infrared temperature measuring device on the surfaces of the wires, so that the temperature of the hearth is kept within a preset temperature range.
The temperature of the second section cooling furnace is set to be constant at 700-800 ℃, and the temperature of the third section cooling furnace is set to be constant within the range of 600-700 ℃. Optionally, the length of the furnace body is determined according to the discharge speed of the rolled wire, so as to ensure that the time of the wire passing through each hearth is not less than 240 s.
Furthermore, the second section cooling furnace and the third section cooling furnace are also provided with infrared temperature measuring sensors, and the power of the furnace body can change correspondingly along with the rise and fall of the temperature in the hearth.
The temperature of the wire material discharged from the third section cooling furnace is lower than 700 ℃, and in the temperature range, the chemical property of the titanium alloy is approximately stable, and the wire material can be further cooled by using a compressed cold air mode.
Preferably, the compressed air cold box is provided with an air compressor for adjusting the air compression ratio to keep the temperature gradient in the cooling channel uniform. The three air cylinders as shown in the figure can be provided with regulating valves (such as electromagnetic valves) corresponding to the air inlet pipeline to realize the regulation of the air inlet quantity so as to keep the temperature gradient in the cooling channel uniform.
The rolling cooling is specifically described below with reference to specific examples.
Firstly, simply verifying the reliability of the furnace body with the lower temperature reduction by combining the characteristics of the titanium alloy, wherein the continuous casting speed v of the titanium alloy is 0.09cm/s, and the density r of the titanium alloy is 4.2 x 103kg/m3The specific heat Ck is 0.52J/(kg ℃), the heat conduction power is 15.24W/(mK), the drawing speed of the wire subjected to continuous rolling is 36 times of the ingot casting speed according to the process parameters in Table 1, and the cooling needs to be completed in a time of over 240s according to the cooling curve in FIG. 2 and the cooling treatment in the embodiment shown in FIGS. 3-7, so that the total length of the furnace tube is required to be about 778cm, and the verification is performed according to 7.8m for the convenience of verification.
In the first zone cooling furnace, the temperature of the titanium alloy bar needs to be reduced from 1020 ℃ to 850 ℃. According to the volume calculation formula, the volume of the titanium alloy wire with the diameter of phi 5 of 7.8 meters can be calculated to be about 0.02m3The mass is about 84kg, and according to the specific heat calculation formula, if the temperature of 84kg of wire is reduced by 170 ℃, the 7426J energy needs to be discharged.
According to the formula of the heat conductivity of the titanium alloy, the heat conduction power of the titanium alloy is 117W at the length of 7.8m and at the temperature difference of 1 ℃, which is equivalent to the heat quantity which can be transferred out of 117J in 1 s.
According to the heat of deriving, under 1 ℃ of temperature difference, only need 63s of time, the difference in temperature is big more, and heat conduction power is just big more, consequently when the silk material gets into the cooling furnace body inside, alright lead away the heat in the short time, consequently to the technological requirement cooling rate be more than 240s, the thermal conduction of its length can be guaranteed completely to the furnace body.
TABLE 1 titanium alloy rod rolling process from phi 20 to phi 5 wire processing parameters
Referring to fig. 3, the take-up device 60 is connected to an outlet of the rapid cooling device, and is configured to receive the cooled titanium alloy wire and take up the titanium alloy wire.
Referring to FIG. 8, the take-up device 60 includes a frame body 61 having a take-up inlet 61A facing the square of the rapid cooling device for the titanium alloy wire to pass through.
The frame-type body 61 further includes a driving motor 62, a transmission shaft 63, a take-up reel 64, a guide rail 65, and a front end swing arm 66 and a rear end swing arm 67.
The take-up reel 64 is moved in and out of the interior of the frame body by the guide rails. For example, the take-up reel is moved to the right by a bottom guide rail 65 (including a plurality of guide rollers), and then is fed out of the take-up device by a guide roller in the other direction.
A driving motor 62 is fixed to an upper portion of the frame type body and drives the driving shaft 63 to rotate. The take-up reel 64 includes a first reel face 64A, a second reel face 64B, and a winding portion 64C disposed between the first and second reel faces. The first disk surface 64A faces upward and toward the drive motor 62.
Referring to fig. 8, a notch along a radial direction is formed on the first disk surface 64A, so that when the wire is loaded, the transmission shaft 63 is allowed to pass through the notch, so that the center of the first disk surface is butted on the transmission shaft, the transmission shaft and the center of the first disk surface are in key connection to drive the take-up reel to rotate, and a wire entering from the take-up inlet is wound up in a rotating mode.
The front end rocker arm 66 and the rear end rocker arm 67 are arranged in the frame type main body and located in the wire take-up inlet direction, the moving directions of the front end rocker arm 66 and the rear end rocker arm 67 are in a horizontal moving mode and a vertical moving mode, the rear end rocker arm 67 does not participate in work when the wire is taken up, and when the front end rocker arm 66 is close to the outer end of the take-up reel, the lead connectors of the rear end rocker arm and the front end rocker arm are overlapped.
Optionally, a wire cutting jaw is arranged at the wire leading position of the rear end rocker arm 67 and used for cutting the wire.
In the wire take-up device shown in fig. 8, when the empty take-up reel is pushed into the frame-type main body 61 through the guide rail 65, the notch of the take-up reel 64 is aligned with the transmission shaft 63, and at this time, the rear end wire rocker is located at the center line position, and the take-up reel is pushed to enable the clamping groove to clamp the rear end rocker. The wire material is lifted to the outer side of the take-up reel 64 by lifting the rear end rocker arm 67, the take-up reel is continuously pushed, the transmission shaft 63 is clamped into the first disk surface of the take-up reel and key connection matching is realized, and then the driving motor is controlled to start rotating to take up the wire. Because the wire rod is blocked in the clamping groove at the upper end of the take-up reel, and the driving motor is additionally arranged to rotate, the wire rod forms certain tension to be unlikely to be separated from the take-up reel, and the wire rod is taken up and replaced at one time.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (8)
1. A controllable short-process preparation system for preparing titanium alloy wires by continuous casting and rolling is characterized by comprising a titanium alloy bar preparation device, an auxiliary heating furnace, a continuous hot drawing rolling device, a gradient cooling device, a quick cooling device and a take-up device;
the titanium alloy bar preparation device is used for preparing a titanium alloy bar through crystallizer crystallization;
the concurrent heating furnace is used for heating the titanium alloy bar so as to reach a preset continuous hot drawing rolling temperature range of the titanium alloy bar;
the continuous hot drawing rolling device is used for carrying out continuous hot drawing rolling on the titanium alloy bar subjected to heat compensation to roll a titanium alloy wire;
the gradient cooling device is connected with an outlet of the continuous hot drawing rolling device, and a three-section cooling section is adopted to cool the drawn titanium alloy wire; the three-section type cooling section is realized in a first section cooling furnace, a second section cooling furnace and a third section cooling furnace respectively, the constant temperature area set by the first section cooling furnace is in the range of 800-plus-900 ℃, the constant temperature area set by the second section cooling furnace is in the range of 700-plus-800 ℃, and the constant temperature area set by the third section cooling furnace is in the range of 600-plus-700 ℃;
the rapid cooling device comprises a cooling box connected with an outlet of the gradient cooling device, and at least one cooling channel and a compressed air rapid cooling device which are positioned in the cooling box, wherein the at least one cooling channel is used for receiving the titanium alloy wire subjected to gradient cooling from the gradient cooling device, and the compressed air rapid cooling device sucks cold air to perform heat exchange in the cooling channel so as to rapidly cool the titanium alloy wire;
and the take-up device is connected with an outlet of the quick cooling device and is used for receiving the cooled titanium alloy wires and taking up the wires.
2. The controllable short-process preparation system for preparing titanium alloy wires by continuous casting and rolling according to claim 1, wherein the cooling box is a horizontally transverse rectangular cooling box and is internally provided with at least two cooling channels, each cooling channel is configured as a groove along the longitudinal direction and is used for the titanium alloy wires to pass through, the inlet of each cooling channel is connected to the outlet of the gradient cooling device, and the outlet of each cooling channel is connected to the wire collecting device.
3. The controllable short-flow preparation system for preparing titanium alloy wires by continuous casting and rolling according to claim 2, wherein the compressed air rapid cooling device comprises air ducts communicated with the cooling channel, a plurality of air ducts are arranged at intervals along the direction of the cooling channel, an air inlet pipeline is arranged at the upper part of each air duct, the air ducts are connected to a compressed air cooling box, at least one air outlet pipeline is correspondingly arranged below the grooves of the cooling channel and in the range of the air ducts, the air ducts are connected to the compressed air cooling box, fan blades are arranged inside each air duct and are driven by a motor to rotate so as to form negative pressure, cold air is sucked from the air inlet pipeline, and after heat exchange is carried out on the cooling channel, the cold air is discharged into the compressed air cooling box through the air outlet pipeline, and the compressed air cooling box is provided with a refrigerating device.
4. The controllable short-process preparation system for preparing titanium alloy wires by continuous casting and rolling as claimed in claim 1, wherein inert gas shielding gas is introduced into the three-stage cooling section of the gradient cooling device.
5. The controllable short-process preparation system for preparing titanium alloy wires by continuous casting and rolling as claimed in claim 1, wherein a temperature measuring device is arranged in the three-stage cooling section of the gradient cooling device, and is used for detecting the temperature of the passing titanium alloy wires, adjusting the heating temperature of the hearth according to the fact, and keeping the constant temperature range in different sections.
6. The controllable short-flow preparation system for continuously casting and rolling titanium alloy wires according to claim 1, wherein the compressed air cooling box is provided with an air compressor for adjusting air compression ratio to maintain uniform temperature gradient in the cooling channel.
7. The controllable short-process preparation system for preparing titanium alloy wires by continuous casting and rolling as claimed in claim 1, wherein the take-up device comprises a frame-type main body, and a take-up inlet is arranged on the frame-type main body towards the square of the rapid cooling device for the titanium alloy wires to pass through;
the take-up reel is moved into and out of the frame-type main body through the guide rail;
the wire take-up reel comprises a first disc surface, a second disc surface and a wire winding part arranged between the first disc surface and the second disc surface, a notch along the radial direction is formed in the first disc surface, so that the transmission shaft is allowed to penetrate through the notch when the wire take-up reel is installed, the center of the first disc surface is butted on the transmission shaft, the transmission shaft and the center of the first disc surface are connected through a key to drive the wire take-up reel to rotate, and wires entering from a wire take-up inlet are wound in a rotating mode;
a front end rocker arm and a rear end rocker arm are arranged in the frame type main body and positioned in the direction of a take-up inlet, the motion directions of the front end rocker arm and the rear end rocker arm are in a horizontal motion mode and a vertical motion mode, the rear end rocker arm does not participate in the work when the take-up reel is taken up, and when the front end rocker arm is close to the outer end of the take-up reel, a lead connector of the rear end rocker arm is superposed with a lead connector of the front end rocker arm; and a wire cutting jaw is arranged at the lead of the rear end rocker arm to cut the wire.
8. The controllable short-process preparation system for preparing titanium alloy wires by continuous casting and rolling according to claim 7, wherein in the take-up device, when an empty take-up reel is pushed into the frame-type main body through the guide rail, the notch of the take-up reel is aligned with the transmission shaft, and at the moment, the rear end lead rocker arm is located at a central line position, and the take-up reel is pushed to enable the clamping groove to clamp the rear end rocker arm;
the wire material is lifted to the outer side of the take-up reel by lifting the rear end rocker arm, the take-up reel is continuously pushed, the transmission shaft is clamped into the first disk surface of the take-up reel and key connection matching is realized, and then the driving motor is controlled to start rotating to take up the wire.
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| CN202110039078.4A CN112974531B (en) | 2021-01-13 | 2021-01-13 | Controllable short-process preparation system for preparing titanium alloy wire by continuous casting and rolling |
| PCT/CN2021/114618 WO2022151739A1 (en) | 2021-01-13 | 2021-08-25 | Controllable short-process preparation system for continuous casting and rolling preparation of titanium alloy wires |
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| CN202110039078.4A CN112974531B (en) | 2021-01-13 | 2021-01-13 | Controllable short-process preparation system for preparing titanium alloy wire by continuous casting and rolling |
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| Publication number | Publication date |
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| WO2022151739A1 (en) | 2022-07-21 |
| CN112974531B (en) | 2022-10-28 |
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