CN107252997A - A kind of preparation method of the alloy vertical bar welding wires of TA24 1 - Google Patents
A kind of preparation method of the alloy vertical bar welding wires of TA24 1 Download PDFInfo
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- CN107252997A CN107252997A CN201710612894.3A CN201710612894A CN107252997A CN 107252997 A CN107252997 A CN 107252997A CN 201710612894 A CN201710612894 A CN 201710612894A CN 107252997 A CN107252997 A CN 107252997A
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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 method of the alloy vertical bar welding wires of TA24 1, composition, the titanium alloy fine forging rod billets of TA24 1 of even tissue are chosen, is heated below transformation temperature, rolls to coil blank；Blank is stripped off the skin, butt welding obtains bulk lots volume cold drawing base；Using the cold even machine drawing of inverted wire-drawing machine and many bench roller moulds, using the oblate pass bigeminy formula roller die aximal deformation value high-speed cold-drawing of particular design, coordinate middle vacuum annealing to obtain and finally coil silk material；Then air heat treatment is carried out to silk material, Turn-hub straightenness, grinding, cleaning obtain the alloy vertical bar welding wires of TA24 1.The alloy vertical bar welding wires of TA24 1 are prepared using the inventive method, technical process continuity is high, and production efficiency is high, and processing cost is significantly reduced.Welding wire transverse direction low power meets the standard requirement of related welding wire without the defects such as contracting tail, stomata, layering, crack, metal or nonmetal inclusion, surface-brightening, linearity≤2mm/m.
Description
Technical field
The invention belongs to titanium alloy material processing technique field, and in particular to a kind of preparation of TA24-1 alloys vertical bar welding wire
Method.
Background technology
TA24-1 alloys nominal composition is Ti-3Al-2Mo-2Zr, is strength titanium alloy in a kind of nearly α types.With excellent cold
Hot-working character, good welding performance is nonmagnetic, has excellent corrosion resistance in seawater or acid hydrocarbon compound, special
Naval vessel welding material is not suitable as.Due to TA24-1 welding wires using specification smaller, usually Φ 2.0mm~Φ 3.0mm, the rule
The titanium alloy welding wire preparation technology long flow path of lattice scope, process is discontinuous, and efficiency of energy utilization is low.It is prepared by traditional handicraft
Silk material surface quality it is poor, yield rate is relatively low, causes production cost higher, limit TA24-1 alloy welding wires extensively make
With.
Under normal circumstances, TA24-1 alloy welding wires preparation technology be by ingot casting by open die forging, finish forge, roll, strip off the skin plus
Heat fixation die drawing is pulled out, and the process such as is aligned, is cleaned, preparing the silk material of requirement specification.TA24-1 silk materials prepared by traditional handicraft, plus
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.Silk material prepared by traditional handicraft is generally using pickling or alkali cleaning processing surface, and surface quality is poor.
Therefore, using conventionally produced TA24-1 vertical bars welding wire, there is production efficiency lowly, production cost is high to ask
Topic.
The content of the invention
It is an object of the invention to provide a kind of preparation method of TA24-1 alloys vertical bar welding wire, existing TA24-1 is solved straight
The problem of bar welding wire production inefficiency, production cost are high, surface quality is poor.
The technical solution adopted in the present invention is：A kind of preparation method of TA24-1 alloys vertical bar welding wire, specifically according to
Lower step is implemented：
Step 1, blank is processed：
Composition, the TA24-1 titanium alloy fine forging stocks of even tissue are chosen, is placed in resistance furnace, is heated below transformation temperature,
Obtained using a fiery multi-pass groove rolling and coil blank；
Step 2, prepared by blank：
The blank obtained to step 1 is obtained using not being in the mood for the processing of pickpocket on a bus or train's skin, flash butt welder butt welding and carrying out solder joint reconditioning
Cold drawn big substance coils blank；
Step 3, silk material roller die is cold drawn：
The blank obtained to step 2 is cold drawn using inverted roller die wire drawing machine, then connects machine drawing cold even drawing, root using roller die
Air 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 materials；
Step 4, it is heat-treated and is surface-treated：
The final specification silk material air atmosphere heat treatment obtained to step 3, then with Turn-hub straightenness, less grinder for grinding,
Cleaning, that is, obtain the TA24-1 vertical bar welding wires of great surface quality.
The features of the present invention is also resided in,
Heating-up temperature is that 20 DEG C~70 DEG C below transformation temperature, soaking time is 120min~180min in step 1.
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 frames in the last frame of open-train mill, robs for 3~4 times
Head rolling.
The roller die of the inverted cold drawn use reducing pass of roller die wire drawing machine in step 3, the preceding hole of reducing pass is flat, metapore circle,
Its parameter includes high h, h ˊ of pass, tip circle arc D, d ˊ, roll gap s, s ˊ, angle of flare X, Y, and target size is d after drawing0, then hole phase
The parameter is answered to be：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 are (0.12~0.35) mm according to roller die structure design；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 high h, h ˊ of pass, 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 be：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 design is (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 many 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 air annealing.
Air 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 beneficial effects of the invention are as follows a kind of preparation method of TA24-1 alloys vertical bar welding wire of the invention passes through cross-arranging type
The blank of larger substance is obtained with lap siding combining form milling train, and it is single greatly by flash butt welding and the cold drawn acquisition of inverted roller die
Drawing silk base is coiled again, makes silk material drawing operation process continuous.By larger pass deformation and cumulative deformation, higher
Drawing speed, cold even drawing etc. mode obtain higher production efficiency.Drawing process is set by the pass and pass deformation of roller die
Meter realizes the control of material type.The TA24-1 vertical bar silk materials prepared using the present invention, surface quality is better than silk prepared by traditional handicraft
Material, silk material hydrogen content≤0.004%, horizontal low power lacks without contracting tail, stomata, layering, crack, metal or nonmetal inclusion etc.
Fall into, meet relevant criterion requirement.
Brief description of the drawings
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 roller die rule 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 wires prepared by the present invention.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
A kind of preparation method of TA24-1 alloys vertical bar welding wire of the present invention, specifically implements according to following steps：
Step 1, blank is processed：
It is placed in resistance furnace, the TA24-1 alloy finish forge bases of vertical, horizontal even tissue 20 DEG C~70 below transformation temperature
DEG C heating, soaking time 120min~180min using open-train mill, increases by 2 file machines in the last frame of open-train mill
Frame, robs head rolling for 3~4 times, and rolling obtains the disk round billet that substance is 28kg~35kg.1 fire time cumulative deformation 97.8%~
98.5%.
Step 2, prepared by blank：
The disk round billet obtained to step 1 is welded using pickpocket on a bus or train's skin is not in the mood for using flash butt welder, and polishing solder joint is simultaneously marked,
Obtain the bulk lots volume drawing base that volume weight is 300kg~450kg.
Step 3, silk material roller die is cold drawn：
The bulk lots volume drawing base obtained to step 2, with inverted wire-drawing machine, with the roller die of reducing pass shown in Fig. 1, with
40m/min~70m/min speed cold drawing, is drawn to after certain specification and connects machine drawing drawing with many bench roller moulds, draw out linear speed
35m/min~40m/min is spent, last one of finished product roller die drawing is pulled out with the rule circular hole roller die drawing shown in Fig. 2, it is ensured that after drawing
Silk material size roundness control is within 0.04mm.Each pass deformation control of roller die drawing is 3%~16%.The cold drawn mistakes of TA24-1
Cheng Zhong, cumulative deformation reaches that 62.8%~76.5% should carry out intermediate annealing.
The parameter of metapore-circle includes high h, h ˊ of pass, tip circle arc D, d ˊ, roll gap s, s ˊ in preceding hole-flat and Fig. 1 b in Fig. 1 a,
Angle of flare X, Y.Target size is d after drawing0, respective design parameter is according to following scope 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 are set according to roller die structure
It is calculated as (0.12~0.35) mm；Angle of flare X, Y is designed between 35 °~50 °.Pass shown in Fig. 1 is to ensure TA24-1
Alloy realizes the cold drawn tube reducing of quick roller die, makes the control of target silk material dimensional discrepancy within (+0.05, -0.05) mm.
The parameter of metapore includes high h, h ˊ of pass, 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, respective design parameter is according to following scope 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 design
(0.10~0.15) mm；Angle of flare X, Y is designed between 15 °~30 °.Pass shown in Fig. 2 is to ensure TA24-1 alloys
The raising of the cold drawn silk material dimensional accuracy of roller die, makes the control of target silk material dimensional discrepancy within (+0.02, -0.02) mm.
Step 4, silk material intermediate annealing：
To carrying out middle air annealing using resistance furnace after 62.8%~76.5% deflection after the middle cold drawing of step 3,
Proceed roller die cold drawing after annealing.Middle air 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 is obtained 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 cooling.Using Turn-hub straightenness silk material, centreless grinding is used in solder joint position that is lower disconnected and cutting off mark then
Bed grinding, cleaning, that is, obtain the TA24-1 vertical bar welding wires of surface-brightening.
Embodiment 1
Step 1, composition, the Φ 85mm specifications substances of even tissue are used for 28kg~35kg TA24-1 alloy finish forge rods
Base, is placed in chamber type electric resistance furnace, and 20 DEG C~40 DEG C heating below transformation temperature, the stove inside holding time is 120min~140min.
Using open-train mill, 2 file frames, the disk that it is Φ 12.5mm that 3~4 times, which are robbed head to roll, are increased in the last frame of open-train mill
Roll up base.
Step 2, it will be taken off through the rolling disk round billet charging tray round billet of step 1 using pickpocket on a bus or train's skin, the amount of stripping off the skin 1.2mm is not in the mood for
Branched material is welded using flash butt welder after skin, polishing solder joint is simultaneously marked, obtain the deep bid that volume weight is 300kg~350kg
Roll up drawing base.
Step 3, the Φ 11.3mm blanks obtained through step 2 are 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 of annealing temperature~630 DEG C, soaking time
For 1h~2h, air cooling.Connect machine drawing using many bench roller moulds after coming out of the stove and carry 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 materials air atmosphere step 4 obtained is heat-treated, and temperature is 630 DEG C~650 DEG C, insulation
Time is 1h~1.5h, air cooling.Φ 3.15mm silk materials are aligned with Turn-hub straightenness machine, and linearity≤2mm/m is lower disconnected and cut off mark
Solder joint position, the method for cleaning obtain clean, the TA24-1 Φ 3.0mm vertical bar welding wires of glossy surface.
Embodiment 2
Step 1, composition, the Φ 85mm specifications substances of even tissue are used for 28kg~35kg TA24-1 alloy finish forge rods
Base, is placed in chamber type electric resistance furnace, and 40 DEG C~60 DEG C heating below transformation temperature, the stove inside holding time is 140min~160min.
Using open-train mill, 2 file frames, the disk that it is Φ 11.5mm that 3~4 times, which are robbed head to roll, are increased in the last frame of open-train mill
Roll up base.
Step 2, it will be taken off through the rolling disk round billet charging tray round billet of step 1 using pickpocket on a bus or train's skin, the amount of stripping off the skin 0.8mm is not in the mood for
Branched material is welded using flash butt welder after skin, polishing solder joint is simultaneously marked, obtain the deep bid that volume weight is 350kg~400kg
Roll up drawing base.
Step 3, the Φ 10.7mm blanks obtained through step 2 are 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, during insulation
Between be 1h~2h, air cooling.After coming out of the stove using many 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 of annealing temperature~650 DEG C, soaking time
For 1h~2h, air cooling.Connect machine drawing using many bench roller moulds after coming out of the stove and carry 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 materials air atmosphere step 5 obtained is heat-treated, 640 DEG C~660 DEG C of temperature, during insulation
Between be 1h~1.5h, air cooling.Φ 2.15mm silk materials are aligned with Turn-hub straightenness machine, and linearity≤2mm/m is lower disconnected and cut off mark
Solder joint position, the TA24-1 Φ 2.0mm vertical bars for then obtaining clean, glossy surface with the method for less grinder for grinding, cleaning are welded
Silk.
Embodiment 3
Step 1, composition, the Φ 85mm specifications substances of even tissue are used for 28kg~35kg TA24-1 alloy finish forge rods
Base, is placed in chamber type electric resistance furnace, and 50 DEG C~70 DEG C heating below transformation temperature, the stove inside holding time is 160min~180min.
Using open-train mill, 2 file frames, the disk that it is Φ 10.5mm that 3~4 times, which are robbed head to roll, are increased in the last frame of open-train mill
Roll up base.
Step 2, it will be stripped off the skin through the rolling disk round billet charging tray round billet of step 1 using pickpocket on a bus or train's skin, the amount of stripping off the skin 1mm is not in the mood for
Branched material is welded using flash butt welder afterwards, polishing solder joint is simultaneously marked, obtain the bulk lots volume that volume weight is 400kg~450kg
Drawing base.
Step 3, the Φ 9.5mm blanks obtained through step 2 are 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 of annealing temperature~680 DEG C, soaking time
For 1h~2h, air cooling.Connect machine drawing using many bench roller moulds after coming out of the stove and carry 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 materials air atmosphere step 4 obtained is heat-treated, 650 DEG C~680 DEG C of temperature, during insulation
Between be 1h~1.5h, air cooling.Φ 2.65mm silk materials are aligned with Turn-hub straightenness machine, linearity≤2mm/m then descends and breaks and cut off mark
The solder joint position of note, it is then straight with the TA24-1 Φ 2.5mm that the method for less grinder for grinding, cleaning obtains clean, glossy surface
Bar welding wire.
The present invention prepares TA24-1 vertical bar welding wires, and larger substance rolling, bulk lots volume roller die is cold drawn, and drawing silk material rotating hub is rectified
Directly, rear grinding, cleaning obtains clean surface.This method production efficiency is greatly improved compared with traditional handicraft, the energy consumption drop of Unit Weight
Low, production cost is significantly reduced.This method prepare vertical bar welding wire, horizontal low power without contracting tail, stomata, layering, crack, metal or
The defects such as person's nonmetal inclusion, presentation quality is 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 Fig. 3, and linearity≤2mm/m fully meets related welding wire standard requirement.
Claims (10)
1. a kind of preparation method of TA24-1 alloys vertical bar welding wire, it is characterised in that specifically implement according to following steps：
Step 1, blank is processed：
Composition, the TA24-1 titanium alloy fine forging stocks of even tissue are chosen, is placed in resistance furnace, is heated below transformation temperature, is used
One fiery multi-pass groove rolling, which is obtained, coils blank；
Step 2, prepared by blank：
The blank obtained to step 1 is obtained cold drawn using not being in the mood for the processing of pickpocket on a bus or train's skin, flash butt welder butt welding and carrying out solder joint reconditioning
Big substance coils blank；
Step 3, silk material roller die is cold drawn：
The blank obtained to step 2 is cold drawn using inverted roller die wire drawing machine, then connects the cold even drawing of machine drawing using roller die, according to cold
Even draw cumulative deformation to carry out air annealing, then proceed to connect the cold even drawing of machine drawing, the final TA24- for obtaining cold drawing molding with roller die
1 silk material；
Step 4, it is heat-treated and is surface-treated：
The final specification silk material air atmosphere heat treatment obtained to step 3, then with Turn-hub straightenness, less grinder for grinding, cleaning,
Obtain the TA24-1 vertical bar welding wires of great surface quality.
2. a kind of preparation method of TA24-1 alloys vertical bar welding wire according to claim 1, it is characterised in that the step
Heating-up temperature is that 20 DEG C~70 DEG C below transformation temperature, soaking time is 120min~180min in 1.
3. a kind of preparation method of TA24-1 alloys vertical bar welding wire according to claim 1, it is characterised 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 alloys vertical bar welding wire according to claim 1, it is characterised in that the step
Rolling uses open-train mill in 1, increases by 2 file frames in the last frame of open-train mill, robs head rolling 3~4 times.
5. a kind of preparation method of TA24-1 alloys vertical bar welding wire according to claim 1, it is characterised in that the step
The roller die of the inverted cold drawn use reducing pass of roller die wire drawing machine in 3, the preceding hole of reducing pass is flat, and metapore circle, its parameter includes hole
High h, h ˊ of type, 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 be：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 are (0.12~0.35) mm according to roller die structure design；Angle of flare X, Y is between 35 °~50 °.
6. a kind of preparation method of TA24-1 alloys vertical bar welding wire according to claim 1, it is characterised in that the step
Roller die connects that machine drawing is cold even to draw using rule circular hole in 3, and the parameter of preceding hole and metapore includes high h, h ˊ of pass, tip circle arc D, d ˊ, roller
Seam s, s ˊ, angle of flare X, Y, target size is d after drawing0, then hole relevant parameter be：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 are according to roller die structure design
For (0.10~0.15) mm；Angle of flare X, Y is between 15 °~30 °.
7. a kind of preparation method of TA24-1 alloys vertical bar welding wire according to claim 1, it is characterised in that the step
Inverted roller die wire drawing machine cold-drawing speed is 40m/min~70m/min in 3, and many bench roller die wire drawing machines even draw drawing speed 35m/
Min~40m/min.
8. a kind of preparation method of TA24-1 alloys vertical bar welding wire according to claim 1, it is characterised 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 air annealing.
9. the preparation method of a kind of TA24-1 alloys vertical bar welding wire according to claim 1 or 8, it is characterised in that described
Air annealing temperature is 600 DEG C~680 DEG C in step 3, and soaking time is 1h~2h.
10. a kind of preparation method of TA24-1 alloys vertical bar welding wire according to claim 1, it is characterised in that the step
The temperature being heat-treated in rapid 4 is 630 DEG C~680 DEG C, and soaking time is 1h~1.5h.
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|---|---|---|---|---|
| CN112317993A (en) * | 2021-01-04 | 2021-02-05 | 西安稀有金属材料研究院有限公司 | Preparation method of Ti35HS titanium alloy welding wire material |
| CN112317993B (en) * | 2021-01-04 | 2021-04-30 | 西安稀有金属材料研究院有限公司 | Preparation method of Ti35HS titanium alloy welding wire material |
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