CN107252997B - A kind of preparation method of TA24-1 alloy vertical bar welding wire - Google Patents
A kind of preparation method of TA24-1 alloy vertical bar welding wire Download PDFInfo
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- CN107252997B CN107252997B CN201710612894.3A CN201710612894A CN107252997B CN 107252997 B CN107252997 B CN 107252997B CN 201710612894 A CN201710612894 A CN 201710612894A CN 107252997 B CN107252997 B CN 107252997B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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Abstract
The invention discloses a kind of preparation methods of TA24-1 alloy vertical bar welding wire, choose the TA24-1 titanium alloy fine forging rod billet of ingredient, even tissue, heat below transformation temperature, roll to coil blank；It is stripped off the skin to blank, butt welding obtains bulk lots volume cold drawing base；Middle vacuum annealing is cooperated to obtain final coiling silk material using flat-circular hole bigeminy formula roller die aximal deformation value high-speed cold-drawing of special designing using inverted wire-drawing machine and more cold Lian Laji of bench roller mould；Then atmosphere heat treatment is carried out to silk material, Turn-hub straightenness, grinding, cleaning obtain TA24-1 alloy vertical bar welding wire.TA24-1 alloy vertical bar welding wire is prepared using the method for the present invention, technical process continuity is high, high production efficiency, and processing cost significantly reduces.The defects of welding wire transverse direction low power is without contracting tail, stomata, layering, crack, metal or nonmetal inclusion, surface-brightening, straightness≤2mm/m meet the standard requirements of related welding wire.
Description
Technical field
The invention belongs to titanium alloy material processing technique fields, and in particular to a kind of preparation of TA24-1 alloy vertical bar welding wire
Method.
Background technique
TA24-1 alloy nominal composition is Ti-3Al-2Mo-2Zr, is strength titanium alloy in a kind of nearly α type.With excellent cold
Hot-working character, good welding performance is nonmagnetic, has excellent corrosion resistance in seawater or acid hydrocarbon compound, special
It is not suitable as naval vessel welding material.Due to TA24-1 welding wire using specification smaller, usually Φ 2.0mm~Φ 3.0mm, the rule
The titanium alloy welding wire preparation process flow of lattice range is long, and process is discontinuous, and efficiency of energy utilization is low.Traditional handicraft preparation
Silk material surface quality it is poor, yield rate is lower, causes production cost higher, limit TA24-1 alloy welding wire extensively make
With.
Under normal conditions, TA24-1 alloy welding wire preparation process is that ingot casting is passed through to open die forging, finish forge, rolls, strip off the skin, adding
Heat fixation die drawing pulls out, and the processes such as aligns, cleans, preparing the silk material of requirement specification.The TA24-1 silk material of traditional handicraft preparation, adds
Work process substance is small, usually more than 8kg.The single rolling of course of hot rolling, drawing process heating for multiple times, energy utilization rate, efficiency
It is low.The silk material of traditional handicraft preparation generallys use pickling or alkali cleaning processing surface, surface quality are poor.
Therefore, using conventionally produced TA24-1 vertical bar welding wire, it is low that there are production efficiencys, and high production cost is asked
Topic.
Summary of the invention
The object of the present invention is to provide a kind of preparation methods of TA24-1 alloy vertical bar welding wire, and it is straight to solve existing TA24-1
Welding wire production inefficiency, high production cost, the problem of surface quality difference.
The technical scheme adopted by the invention is that: a kind of preparation method of TA24-1 alloy vertical bar welding wire, specifically according to
Lower step is implemented:
Step 1, blank is processed:
The TA24-1 titanium alloy fine forging stock for choosing ingredient, even tissue, is placed in resistance furnace, heats below transformation temperature,
It is obtained using a fiery multi-pass groove rolling and coils blank；
Step 2, prepared by blank:
The blank that step 1 obtains is used and is not in the mood for the processing of pickpocket on a bus or train's skin, flash butt welder butt welding and carries out solder joint reconditioning, is obtained
The big substance of cold drawing coils blank；
Step 3, silk material roller die cold drawing:
Inverted roller die wire drawing machine cold drawing is used to the blank that step 2 obtains, the cold even drawing of machine drawing, root are then connected using roller die
Atmosphere annealing is carried out according to cold even drawing cumulative deformation, then proceedes to connect the cold even drawing of machine drawing with roller die, final acquisition cold drawing molding
TA24-1 silk material；
Step 4, it is heat-treated and is surface-treated:
To step 3 obtain final specification silk material air atmosphere heat treatment, then use Turn-hub straightenness, less grinder for grinding,
Cleaning obtains the TA24-1 vertical bar welding wire of great surface quality.
The features of the present invention also characterized in that
Heating temperature is 20 DEG C~70 DEG C of transformation temperature or less in step 1, and soaking time is 120min~180min.
It is 97.8%~98.5% that cumulative deformation is rolled in step 1.
Rolling uses open-train mill in step 1, increases by 2 file racks in the last rack of open-train mill, robs for 3~4 times
Head rolling.
Inverted roller die wire drawing machine cold drawing uses the roller die of reducing pass in step 3, and the preceding hole of reducing pass is flat, metapore circle,
Its parameter includes the high h of pass, h ˊ, and tip circle arc D, d ˊ, roll gap s, s ˊ, angle of flare X, Y, target size is d after drawing0, then hole phase
Answer parameter are as follows: h=d0/ 2- (0.08~0.45) mm, h ˊ=d0/ 2- (0.06~0.40) mm；D=(1.05~1.15) d0, d ˊ=
(1.03~1.08) d0；S, s ˊ is designed as (0.12~0.35) mm according to roller die structure；Angle of flare X, Y is between 35 °~50 °.
Roller die connects that machine drawing is cold even to draw using rule circular hole in step 3, and the parameter of preceding hole and metapore includes the high h of pass, h ˊ, top
Circular arc D, d ˊ, roll gap s, s ˊ, angle of flare X, Y, target size is d after drawing0, then hole relevant parameter are as follows: h=d0/ 2- (0.03~
0.15) mm, h ˊ=d0/ 2- (0.02~0.12) mm；D=(1.01~1.06) d0, d ˊ=(1.01~1.05) d0；S, s ˊ according to
Roller die structure is designed as (0.10~0.15) mm；Angle of flare X, Y is between 15 °~30 °.
Inverted roller die wire drawing machine cold-drawing speed is 40m/min~70m/min in step 3, and more bench roller die wire drawing machines are even drawn
Drawing speed 35m/min~40m/min.
Each pass deformation control of roller die drawing is 3%~16% in step 3；Cumulative deformation reaches in cold drawing process
62.8%~76.5% carries out atmosphere annealing.
Atmosphere annealing temperature is 600 DEG C~680 DEG C in step 3, and soaking time is 1h~2h.
The temperature being heat-treated in step 4 is 630 DEG C~680 DEG C, and soaking time is 1h~1.5h.
The invention has the advantages that a kind of preparation method of TA24-1 alloy vertical bar welding wire of the present invention, passes through cross-arranging type
The blank of larger substance is obtained with lap siding combining form milling train, and big list is obtained by flash butt welding and inverted roller die cold drawing
Drawing silk base is coiled again, keeps silk material drawing operation process continuous.By biggish pass deformation and cumulative deformation, higher
Drawing speed, cold even drawing etc. modes obtain higher production efficiency.Drawing process is set by the pass and pass deformation of roller die
Meter realizes the control of material type.Using TA24-1 vertical bar silk material prepared by the present invention, surface quality is better than the silk of traditional handicraft preparation
Material, silk material hydrogen content≤0.004%, lateral low power are lacked without contracting tail, stomata, layering, crack, metal or nonmetal inclusion etc.
It falls into, meets relevant criterion requirement.
Detailed description of the invention
Fig. 1 is roller die reducing pass schematic diagram in the present invention, and wherein a is preceding hole, and b is metapore；
Fig. 2 is that roller die advises circular hole schematic diagram in the present invention, and wherein a is preceding hole, and b is metapore；
Fig. 3 is the H content figure of TA24-1 alloy vertical bar welding wire prepared by the present invention.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of preparation method of TA24-1 alloy vertical bar welding wire of the present invention, is specifically implemented according to the following steps:
Step 1, blank is processed:
It is placed in resistance furnace, the TA24-1 alloy finish forge base of vertical, horizontal even tissue 20 DEG C~70 below transformation temperature
DEG C heating, soaking time 120min~180min increase by 2 file machines in the last rack of open-train mill using open-train mill
Frame, robs head rolling for 3~4 times, and rolling obtains the disk round billet that substance is 28kg~35kg.1 fiery cumulative deformation 97.8%~
98.5%.
Step 2, prepared by blank:
Pickpocket on a bus or train's skin not to be in the mood for the disk round billet use that step 1 obtains, is welded using flash butt welder, polishing solder joint simultaneously marks,
Obtain the bulk lots volume drawing base that volume weight is 300kg~450kg.
Step 3, silk material roller die cold drawing:
To the bulk lots volume drawing base that step 2 obtains, with inverted wire-drawing machine, the roller die of the reducing pass shown in Fig. 1, with
The speed cold drawing of 40m/min~70m/min is drawn to after certain specification and connects machine drawing drawing with more bench roller moulds, draws out linear speed
35m/min~40m/min is spent, last one of finished product roller die drawing is pulled out with rule circular hole roller die drawing shown in Fig. 2, after guarantee drawing
Silk material size roundness control is within 0.04mm.Each pass deformation control of roller die drawing is 3%~16%.TA24-1 cold drawing
Cheng Zhong, cumulative deformation, which reaches 62.8%~76.5%, should carry out intermediate annealing.
Preceding hole-is flat in Fig. 1 a and Fig. 1 b in metapore-circle parameter include the high h of pass, h ˊ, tip circle arc D, d ˊ, roll gap s, s ˊ,
Angle of flare X, Y.Target size is d after drawing0, corresponding design parameter is according to following range h=d0/ 2- (0.08~0.45) mm, h ˊ
=d0/ 2- (0.06~0.40) mm；D=(1.05~1.15) d0, d ˊ=(1.03~1.08) d0；S, s ˊ is set according to roller die structure
It is calculated as (0.12~0.35) mm；Angle of flare X, Y designs between 35 °~50 °.Pass shown in FIG. 1 is to guarantee TA24-1
Alloy realizes quick roller die cold drawing tube reducing, makes the control of target silk material dimensional discrepancy within (+0.05, -0.05) mm.
The parameter of metapore includes the high h of pass, h ˊ, tip circle arc D, d ˊ roll gap s, s ˊ, the angle of flare in preceding hole and Fig. 2 b in Fig. 2 a
X,Y.Target size is d after drawing0, corresponding design parameter is according to following range h=d0/ 2- (0.03~0.15) mm, h ˊ=d0/
2- (0.02~0.12) mm；D=(1.01~1.06) d0, d ˊ=(1.01~1.05) d0；S, s ˊ is designed as according to roller die structure
(0.10~0.15) mm；Angle of flare X, Y designs between 15 °~30 °.Pass shown in Fig. 2 is to guarantee TA24-1 alloy
The raising of roller die cold drawing silk material dimensional accuracy makes the control of target silk material dimensional discrepancy within (+0.02, -0.02) mm.
Step 4, silk material intermediate annealing:
It anneals to using resistance furnace to carry out intermediate atmosphere after 62.8%~76.5% deflection after the intermediate cold drawing of step 3,
Continue roller die cold drawing after annealing.Intermediate atmosphere annealing temperature is 600 DEG C~680 DEG C, and soaking time is 1h~2h, empty
It is cold.
Step 5, it is heat-treated and is surface-treated:
The silk material that step 4 obtains is heat-treated using air atmosphere.The temperature of finished product heat treatment is 630 DEG C~680 DEG C, is protected
The warm time is 1h~1.5h, air-cooled.Using Turn-hub straightenness silk material, then centreless grinding is used at solder joint position that is lower disconnected and cutting off label
Bed grinding, cleaning, that is, obtain the TA24-1 vertical bar welding wire of surface-brightening.
Embodiment 1
Step 1, use ingredient, even tissue Φ 85mm specification substance for 28kg~35kg TA24-1 alloy finish forge stick
Base is placed in chamber type electric resistance furnace, and 20 DEG C~40 DEG C heating below transformation temperature, the furnace inside holding time is 120min~140min.
Using open-train mill, increase by 2 file racks, the disk that it is Φ 12.5mm that 3~4 times, which are robbed head to roll, in the last rack of open-train mill
Roll up base.
Step 2, pickpocket on a bus or train's skin will not be in the mood for through the rolling disk round billet charging tray round billet use of step 1, the amount of stripping off the skin 1.2mm takes off
More materials are welded using flash butt welder after skin, polishing solder joint simultaneously marks, and obtains the deep bid that volume weight is 300kg~350kg
Roll up drawing base.
Step 3, the Φ 11.3mm blank obtained through step 2 is used into inverted wire-drawing machine, roller die drawing, drawing speed
40m/min~50m/min, the pass deformation 3%~14% of drawing, 9~10 passages are drawn to Φ 6.5mm.
Step 4, the silk material obtained through step 3 is annealed in resistance furnace, 600 DEG C~630 DEG C of annealing temperature, soaking time
It is air-cooled for 1h~2h.Connecting machine drawing using more bench roller moulds after coming out of the stove and carries out cold even drawing, cold drawing pass deformation is 3%~16%,
The cold company of 11~12 passages is pulled to Φ 3.15mm.Drawing speed 35m/min~40m/min.
Step 5, Φ 3.15mm silk material air atmosphere step 4 obtained is heat-treated, and temperature is 630 DEG C~650 DEG C, heat preservation
Time is 1h~1.5h, air-cooled.Φ 3.15mm silk material is aligned with Turn-hub straightenness machine, straightness≤2mm/m is lower to break and cut off label
Solder joint position, cleaning method obtain clean, glossy surface TA24-1 Φ 3.0mm vertical bar welding wire.
Embodiment 2
Step 1, use ingredient, even tissue Φ 85mm specification substance for 28kg~35kg TA24-1 alloy finish forge stick
Base is placed in chamber type electric resistance furnace, and 40 DEG C~60 DEG C heating below transformation temperature, the furnace inside holding time is 140min~160min.
Using open-train mill, increase by 2 file racks, the disk that it is Φ 11.5mm that 3~4 times, which are robbed head to roll, in the last rack of open-train mill
Roll up base.
Step 2, pickpocket on a bus or train's skin will not be in the mood for through the rolling disk round billet charging tray round billet use of step 1, the amount of stripping off the skin 0.8mm takes off
More materials are welded using flash butt welder after skin, polishing solder joint simultaneously marks, and obtains the deep bid that volume weight is 350kg~400kg
Roll up drawing base.
Step 3, the Φ 10.7mm blank obtained through step 2 is used into inverted wire-drawing machine, roller die drawing, drawing speed
50m/min~60m/min, the pass deformation 3%~13% of drawing, 9~10 passages are drawn to Φ 6.10mm.
Step 4, the silk material obtained through step 3 is annealed in resistance furnace, annealing temperature is 630 DEG C~650 DEG C, when heat preservation
Between be 1h~2h, it is air-cooled.After coming out of the stove using more bench roller moulds connect machine drawing carry out it is cold even draw, cold drawing pass deformation be 3%~
16%, the cold company of 7~8 passages is pulled to Φ 3.7mm.Drawing speed 35m/min~40m/min.
Step 5, the silk material obtained through step 4 is annealed in resistance furnace, 630 DEG C~650 DEG C of annealing temperature, soaking time
It is air-cooled for 1h~2h.Connecting machine drawing using more bench roller moulds after coming out of the stove and carries out cold even drawing, cold drawing pass deformation is 3%~16%,
The cold company of 8~9 passages is pulled to Φ 2.15mm.Drawing speed 35m/min~40m/min.
Step 6, Φ 2.15mm silk material air atmosphere step 5 obtained is heat-treated, and 640 DEG C~660 DEG C of temperature, when heat preservation
Between be 1h~1.5h, it is air-cooled.Φ 2.15mm silk material is aligned with Turn-hub straightenness machine, straightness≤2mm/m is lower to break and cut off label
Solder joint position then obtains clean, glossy surface TA24-1 Φ 2.0mm vertical bar weldering with the method for less grinder for grinding, cleaning
Silk.
Embodiment 3
Step 1, use ingredient, even tissue Φ 85mm specification substance for 28kg~35kg TA24-1 alloy finish forge stick
Base is placed in chamber type electric resistance furnace, and 50 DEG C~70 DEG C heating below transformation temperature, the furnace inside holding time is 160min~180min.
Using open-train mill, increase by 2 file racks, the disk that it is Φ 10.5mm that 3~4 times, which are robbed head to roll, in the last rack of open-train mill
Roll up base.
Step 2, pickpocket on a bus or train's skin will not be in the mood for through the rolling disk round billet charging tray round billet use of step 1, the amount of stripping off the skin 1mm strips off the skin
More materials are welded using flash butt welder afterwards, polishing solder joint simultaneously marks, and obtains the bulk lots volume that volume weight is 400kg~450kg
Drawing base.
Step 3, the Φ 9.5mm blank obtained through step 2 is used into inverted wire-drawing machine, roller die drawing, drawing speed
60m/min~70m/min, the pass deformation 7%~16% of drawing, 9~10 passages are drawn to Φ 5.35mm.
Step 4, the silk material obtained through step 3 is annealed in resistance furnace, 650 DEG C~680 DEG C of annealing temperature, soaking time
It is air-cooled for 1h~2h.Connecting machine drawing using more bench roller moulds after coming out of the stove and carries out cold even drawing, cold drawing pass deformation is 5%~14%,
The cold company of 10~11 passages is pulled to Φ 2.65mm.Drawing speed 35m/min~40m/min.
Step 5, Φ 2.65mm silk material air atmosphere step 4 obtained is heat-treated, and 650 DEG C~680 DEG C of temperature, when heat preservation
Between be 1h~1.5h, it is air-cooled.Φ 2.65mm silk material is aligned with Turn-hub straightenness machine, straightness≤2mm/m is then lower to break and cut off mark
The solder joint position of note, then the method acquisition with less grinder for grinding, cleaning is clean, the TA24-1 Φ 2.5mm of glossy surface is straight
Welding wire.
The present invention prepares TA24-1 vertical bar welding wire, and larger substance rolls, and bulk lots volume roller die cold drawing, drawing silk material rotating hub is rectified
Directly, rear grinding, cleaning obtain clean surface.This method production efficiency is greatly improved compared with traditional handicraft, the energy consumption drop of Unit Weight
Low, production cost significantly reduces.This method preparation vertical bar welding wire, lateral low power without contracting tail, stomata, layering, crack, metal or
The defects of person's nonmetal inclusion, presentation quality are better than classical acid alkali cleaning surface, hydrogen content≤0.004%, the ideal format of preparation
The hydrogen content of vertical bar welding wire is shown in that Fig. 3, straightness≤2mm/m fully meet related welding wire standard requirements.
Claims (8)
1. a kind of preparation method of TA24-1 alloy vertical bar welding wire, which is characterized in that be specifically implemented according to the following steps:
Step 1, blank is processed:
The TA24-1 titanium alloy fine forging stock for choosing ingredient, even tissue, is placed in resistance furnace, heats below transformation temperature, uses
One fiery multi-pass groove rolling, which obtains, coils blank；
Step 2, prepared by blank:
The blank that step 1 obtains is used and is not in the mood for the processing of pickpocket on a bus or train's skin, flash butt welder butt welding and carries out solder joint reconditioning, obtains cold drawing
Big substance coils blank；
Step 3, silk material roller die cold drawing:
Inverted roller die wire drawing machine cold drawing is used to the blank that step 2 obtains, the cold even drawing of machine drawing is then connected using roller die, according to cold
Even cumulative deformation is drawn to carry out atmosphere annealing, then proceedes to connect the cold even drawing of machine drawing, the final TA24- for obtaining cold drawing molding with roller die
1 silk material；
The inverted roller die wire drawing machine cold drawing uses the roller die of reducing pass, and the preceding hole of reducing pass is flat, metapore circle, parameter packet
The high h of pass, h ˊ are included, tip circle arc D, d ˊ, roll gap s, s ˊ, angle of flare X, Y, target size is d after drawing0, then hole relevant parameter are as follows:
H=d0/ 2- (0.08~0.45) mm, h ˊ=d0/ 2- (0.06~0.40) mm；D=(1.05~1.15) d0, d ˊ=(1.03~
1.08)d0；S, s ˊ is designed as (0.12~0.35) mm according to roller die structure；Angle of flare X, Y is between 35 °~50 °；
The roller die connects cold even draw of machine drawing and uses rule circular hole, and the parameter of preceding hole and metapore includes the high h of pass, h ˊ, tip circle arc D, d
ˊ, roll gap s, s ˊ, angle of flare X, Y, target size is d after drawing0, then hole relevant parameter are as follows: h=d0/ 2- (0.03~0.15) mm,
H ˊ=d0/ 2- (0.02~0.12) mm；D=(1.01~1.06) d0, d ˊ=(1.01~1.05) d0；S, s ˊ is according to roller die structure
It is designed as (0.10~0.15) mm；Angle of flare X, Y is between 15 °~30 °；
Step 4, it is heat-treated and is surface-treated:
To the final specification silk material air atmosphere heat treatment that step 3 obtains, Turn-hub straightenness is then used, less grinder for grinding cleans,
Obtain the TA24-1 vertical bar welding wire of great surface quality.
2. a kind of preparation method of TA24-1 alloy vertical bar welding wire according to claim 1, which is characterized in that the step
Heating temperature is 20 DEG C~70 DEG C of transformation temperature or less in 1, and soaking time is 120min~180min.
3. a kind of preparation method of TA24-1 alloy vertical bar welding wire according to claim 1, which is characterized in that the step
It is 97.8%~98.5% that cumulative deformation is rolled in 1.
4. a kind of preparation method of TA24-1 alloy vertical bar welding wire according to claim 1, which is characterized in that the step
Rolling uses open-train mill in 1, increases by 2 file racks in the last rack of open-train mill, robs head rolling 3~4 times.
5. a kind of preparation method of TA24-1 alloy vertical bar welding wire according to claim 1, which is characterized in that the step
Inverted roller die wire drawing machine cold-drawing speed is 40m/min~70m/min in 3, and more bench roller die wire drawing machines even draw drawing speed 35m/
Min~40m/min.
6. a kind of preparation method of TA24-1 alloy vertical bar welding wire according to claim 1, which is characterized in that the step
Each pass deformation control of roller die drawing is 3%~16% in 3；Cumulative deformation reaches 62.8%~76.5% in cold drawing process
Carry out atmosphere annealing.
7. a kind of preparation method of TA24-1 alloy vertical bar welding wire according to claim 1 or 6, which is characterized in that described
Atmosphere annealing temperature is 600 DEG C~680 DEG C in step 3, and soaking time is 1h~2h.
8. a kind of preparation method of TA24-1 alloy vertical bar welding wire according to claim 1, which is characterized in that the step
The temperature being heat-treated in 4 is 630 DEG C~680 DEG C, and soaking time is 1h~1.5h.
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| CN106041369A (en) * | 2016-05-30 | 2016-10-26 | 大连盛辉钛业有限公司 | Preparation method of Ti-6Al-4V alloy welding wire suitable for repair welding of titanium alloy casting |
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- 2017-07-25 CN CN201710612894.3A patent/CN107252997B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101716715A (en) * | 2009-11-20 | 2010-06-02 | 宝鸡市三鑫金属有限责任公司 | Processing method of titanium and titanium alloy wires |
| GB2489244A (en) * | 2011-03-22 | 2012-09-26 | Norsk Titanium Components As | Making titanium alloy and titanium composite welding wire and strip |
| CN103252567A (en) * | 2013-04-23 | 2013-08-21 | 宁夏东方钽业股份有限公司 | Method for welding large-size tantalum strips |
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