CN107413883A - A kind of processing method of titanium alloy thin-walled tube stock - Google Patents
A kind of processing method of titanium alloy thin-walled tube stock Download PDFInfo
- Publication number
- CN107413883A CN107413883A CN201710874965.7A CN201710874965A CN107413883A CN 107413883 A CN107413883 A CN 107413883A CN 201710874965 A CN201710874965 A CN 201710874965A CN 107413883 A CN107413883 A CN 107413883A
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- Prior art keywords
- titanium alloy
- pipe
- alloy plate
- walled tube
- tube stock
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/065—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes starting from a specific blank, e.g. tailored blank
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
- B21C37/0811—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off removing or treating the weld bead
Abstract
The invention discloses a kind of processing method of titanium alloy thin-walled tube stock, go out the size of titanium alloy plate according to the Size calculation of light-wall pipe first, and the titanium alloy plate that thickness meets to require is cut to suitably sized, obtain titanium alloy plate；Titanium alloy plate is put into polishing machine, the surface defect of titanium alloy plate is removed, obtains finished product plate；Finished product plate is put into the mixed solution of hydrofluoric acid and nitric acid, 3min is soaked under normal temperature, then pulled out and drained after being rinsed well with clear water；With edge rolling instrument by the production board material volume after pickling into cylindrical shape, with carrying out seamless welding processing at plasma welding machine docking port, and the pipe for completing welding naturally cools to room temperature；The pipe rail being welded is justified with milling train, surface polishing removes surfaces externally and internally defect, by the pickling again of the pipe after polishing, then pulls out and drains；Aligned after vacuum annealing on seven roller straighteners, that is, obtain titanium alloy thin-walled tube stock.
Description
Technical field
The invention belongs to metal working technical area, is related to a kind of processing method of titanium alloy thin-walled tube stock.
Background technology
In metal tube man-hour, through metal seamless pipe is made frequently with roll piercing or pressing method, process is long, cost
Height, and so obtained pipe fitting surfaces externally and internally is coarse, and longitudinal groove is deeper, and defect is more.In seamless pipe process,
These defects often result in that tubing is cracked, pit, have a strong impact on product quality and lumber recovery, and Non-Destructive Testing qualification rate is relatively low.
It is and bigger to light-wall pipe, the influence of these defects.
The content of the invention
It is an object of the invention to provide a kind of processing method of titanium alloy thin-walled tube stock, solve present in prior art
The problem of various defects easily being produced in thin-wall pipe processing.
The technical solution adopted in the present invention is a kind of processing method of titanium alloy thin-walled tube stock, to specifically include following step
Suddenly：
Step 1
Blanking：Go out the size of titanium alloy plate, and the titanium alloy that thickness is met to require according to the Size calculation of light-wall pipe
Sheet material is cut to suitably sized, obtains titanium alloy plate, standby；
Step 2
Surface treatment：Titanium alloy plate made from step 1 is put into polishing machine, removes the surface defect of titanium alloy plate,
Obtain finished product plate；
Step 3
Pickling：Finished product plate made from step 2 is put into the mixed solution of hydrofluoric acid and nitric acid, under normal temperature soak 1~
4min, then pull out and drained after being rinsed well with clear water；
Step 4
Welding：With edge rolling instrument by the production board material volume after pickling into cylindrical shape, with entering at plasma welding machine docking port
The processing of row seamless welding, and the pipe for completing welding naturally cools to room temperature；
Step 5
Finishing：The pipe rail being welded is justified with milling train, then with sand paper by the inner and outer surfaces polishing removal of pipe
External defects；
Step 6
Cleaning：Pipe after polishing is subjected to pickling again；
Step 7
Vacuum annealing：Pipe is placed in vacuum annealing furnace 40~90min of vacuum annealing under the conditions of 650~750 DEG C, from
So it is cooled to room temperature；
Step 8
Aligning：By the tubing after step 7 vacuum annealing, aligned on seven roller straighteners, glacing flatness is not more than 2mm/
M, that is, obtain titanium alloy thin-walled tube stock.
The features of the present invention also resides in,
The mass ratio of hydrofluoric acid and nitric acid is in step 3：1：4~7.
Round tube inside diameter tolerance after being polished in step 5 is below+0.15mm, and wall thickness tolerance is below -0.15mm, linearity
Within ± 0.01mm, axiality is within ± 0.01mm, and surface roughness is in below Ra3.2.
Pickling in step 6 is consistent with the acid washing conditions in step 3.
In step 7, the vacuum in vacuum annealing furnace need to reach 1 × more than 10-2Pa, tapping temperature≤200 DEG C.
The invention has the advantages that a kind of processing method of titanium alloy thin-walled tube stock of the present invention, simple production process, stream
Journey is short, production cost is low, lumber recovery is high, and process does not produce waste material substantially, and the product size processed is accurate, avoids and splits
The defects of line, pit, improve product quality and lumber recovery.
Embodiment
With reference to embodiment, the present invention is described in detail.
A kind of processing method of titanium alloy thin-walled tube stock of the present invention, specifically includes following steps：
Step 1
Blanking：Go out the size of titanium alloy plate, and the titanium alloy that thickness is met to require according to the Size calculation of light-wall pipe
Sheet material is cut to suitably sized, obtains titanium alloy plate, standby；
Step 2
Surface treatment：Titanium alloy plate made from step 1 is put into polishing machine, removes the surface defect of titanium alloy plate,
Obtain finished product plate；
Step 3
Pickling：It is by the mass ratio that finished product plate made from step 2 is put into hydrofluoric acid and nitric acid：1：4~7 mixing is molten
In liquid, 1~4min is soaked under normal temperature, then pulls out and is drained after being rinsed well with clear water；
Step 4
Welding：With edge rolling instrument by the production board material volume after pickling into cylindrical shape, with entering at plasma welding machine docking port
The processing of row seamless welding, and the pipe for completing welding naturally cools to room temperature；
Step 5
Finishing：The pipe rail being welded is justified with milling train, then with sand paper by the inner and outer surfaces polishing removal of pipe
External defects, the round tube inside diameter tolerance after polishing below+0.15mm, wall thickness tolerance below -0.15mm, linearity ±
Within 0.01mm, axiality is within ± 0.01mm, and surface roughness is in below Ra3.2.；
Step 6
Cleaning：Pipe after polishing is subjected to pickling again；
Step 7
Vacuum annealing：Pipe is placed in vacuum annealing furnace 40~90min of vacuum annealing under the conditions of 650~750 DEG C, very
Vacuum in empty annealing furnace need to reach 1 × more than 10-2Pa, tapping temperature≤200 DEG C.Naturally cool to room temperature；
Step 8
Aligning：By the tubing after step 7 vacuum annealing, aligned on seven roller straighteners, glacing flatness is not more than 2mm/
M, that is, obtain titanium alloy thin-walled tube stock.
A kind of processing method of titanium alloy thin-walled tube stock of the present invention, simple production process, flow are short, production cost is low, into
Material rate is high, and process does not produce waste material substantially, and the product size processed is accurate, the defects of avoiding crackle, pit, improves
Product quality and lumber recovery.
Embodiment 1
Go out the size of titanium alloy plate, and the titanium alloy sheet that thickness is met to require according to the Size calculation of light-wall pipe first
Material is cut to suitably sized, obtains titanium alloy plate；Titanium alloy plate is put into polishing machine, removes the surface of titanium alloy plate
Defect, obtain finished product plate；The mass ratio that finished product plate is put into hydrofluoric acid and nitric acid is：1：In 5.5 mixed solution, often
The lower immersion 2.5min of temperature, then pulls out and is drained after being rinsed well with clear water；With edge rolling instrument by the production board material volume after pickling into
Cylindrical shape, with carrying out seamless welding processing at plasma welding machine docking port, and the pipe for completing welding naturally cools to room
Temperature；The pipe rail being welded is justified with milling train, the inner and outer surfaces polishing of pipe is then removed into surfaces externally and internally defect with sand paper,
Round tube inside diameter tolerance after polishing below+0.15mm, wall thickness tolerance below -0.15mm, linearity within ± 0.01mm,
Axiality is within ± 0.01mm, and surface roughness is in below Ra3.2；Pipe after polishing is put into the matter of hydrofluoric acid and nitric acid
Amount ratio is：1：In 5.5 mixed solution, 2.5min is soaked under normal temperature, then pulls out and drains；Pipe is placed in vacuum annealing furnace
Vacuum annealing 75min under the conditions of inherent 700 DEG C, the vacuum in vacuum annealing furnace need to reach 1 × more than 10-2Pa, tapping temperature
≤ 200 DEG C naturally cool to room temperature；Finally aligned on seven roller straighteners, glacing flatness is not more than 2mm/m, that is, obtains titanium conjunction
Golden thin-wall pipes.
Embodiment 2
Go out the size of titanium alloy plate, and the titanium alloy sheet that thickness is met to require according to the Size calculation of light-wall pipe first
Material is cut to suitably sized, obtains titanium alloy plate；Titanium alloy plate is put into polishing machine, removes the surface of titanium alloy plate
Defect, obtain finished product plate；The mass ratio that finished product plate is put into hydrofluoric acid and nitric acid is：1：In 4 mixed solution, normal temperature
Lower immersion 1min, then pulls out and is drained after being rinsed well with clear water；With edge rolling instrument by the production board material volume after pickling into cylinder
Shape, with carrying out seamless welding processing at plasma welding machine docking port, and the pipe for completing welding naturally cools to room temperature；With
Milling train justifies the pipe rail being welded, and the inner and outer surfaces polishing of pipe then is removed into surfaces externally and internally defect with sand paper, after polishing
Round tube inside diameter tolerance below+0.15mm, wall thickness tolerance is below -0.15mm, and linearity is within ± 0.01mm, axiality
Within ± 0.01mm, surface roughness is in below Ra3.2；Pipe after polishing is put into the mass ratio of hydrofluoric acid and nitric acid
For：1：In 4 mixed solution, 1min is soaked under normal temperature, then pulls out and drains；Pipe is placed in vacuum annealing furnace at 650 DEG C
Under the conditions of vacuum annealing 40min, the vacuum in vacuum annealing furnace need to reach 1 × more than 10-2Pa, tapping temperature≤200 DEG C from
So it is cooled to room temperature；Finally aligned on seven roller straighteners, glacing flatness is not more than 2mm/m, that is, obtains titanium alloy thin-walled tube
Material.
Embodiment 3
Go out the size of titanium alloy plate, and the titanium alloy sheet that thickness is met to require according to the Size calculation of light-wall pipe first
Material is cut to suitably sized, obtains titanium alloy plate；Titanium alloy plate is put into polishing machine, removes the surface of titanium alloy plate
Defect, obtain finished product plate；The mass ratio that finished product plate is put into hydrofluoric acid and nitric acid is：1：In 7 mixed solution, normal temperature
Lower immersion 4min, then pulls out and is drained after being rinsed well with clear water；With edge rolling instrument by the production board material volume after pickling into cylinder
Shape, with carrying out seamless welding processing at plasma welding machine docking port, and the pipe for completing welding naturally cools to room temperature；With
Milling train justifies the pipe rail being welded, and the inner and outer surfaces polishing of pipe then is removed into surfaces externally and internally defect with sand paper, after polishing
Round tube inside diameter tolerance below+0.15mm, wall thickness tolerance is below -0.15mm, and linearity is within ± 0.01mm, axiality
Within ± 0.01mm, surface roughness is in below Ra3.2；Pipe after polishing is put into the mass ratio of hydrofluoric acid and nitric acid
For：1：In 7 mixed solution, 4min is soaked under normal temperature, then pulls out and drains；Pipe is placed in vacuum annealing furnace at 750 DEG C
Under the conditions of vacuum annealing 90min, the vacuum in vacuum annealing furnace need to reach 1 × more than 10-2Pa, tapping temperature≤200 DEG C from
So it is cooled to room temperature；Finally aligned on seven roller straighteners, glacing flatness is not more than 2mm/m, that is, obtains titanium alloy thin-walled tube
Material.
Embodiment 4
Go out the size of titanium alloy plate, and the titanium alloy sheet that thickness is met to require according to the Size calculation of light-wall pipe first
Material is cut to suitably sized, obtains titanium alloy plate；Titanium alloy plate is put into polishing machine, removes the surface of titanium alloy plate
Defect, obtain finished product plate；The mass ratio that finished product plate is put into hydrofluoric acid and nitric acid is：1：In 5 mixed solution, normal temperature
Lower immersion 2min, then pulls out and is drained after being rinsed well with clear water；With edge rolling instrument by the production board material volume after pickling into cylinder
Shape, with carrying out seamless welding processing at plasma welding machine docking port, and the pipe for completing welding naturally cools to room temperature；With
Milling train justifies the pipe rail being welded, and the inner and outer surfaces polishing of pipe then is removed into surfaces externally and internally defect with sand paper, after polishing
Round tube inside diameter tolerance below+0.15mm, wall thickness tolerance is below -0.15mm, and linearity is within ± 0.01mm, axiality
Within ± 0.01mm, surface roughness is in below Ra3.2；Pipe after polishing is put into the mass ratio of hydrofluoric acid and nitric acid
For：1：In 5 mixed solution, 2min is soaked under normal temperature, then pulls out and drains；Pipe is placed in vacuum annealing furnace at 680 DEG C
Under the conditions of vacuum annealing 50min, the vacuum in vacuum annealing furnace need to reach 1 × more than 10-2Pa, tapping temperature≤200 DEG C from
So it is cooled to room temperature；Finally aligned on seven roller straighteners, glacing flatness is not more than 2mm/m, that is, obtains titanium alloy thin-walled tube
Material.
Embodiment 5
Go out the size of titanium alloy plate, and the titanium alloy sheet that thickness is met to require according to the Size calculation of light-wall pipe first
Material is cut to suitably sized, obtains titanium alloy plate；Titanium alloy plate is put into polishing machine, removes the surface of titanium alloy plate
Defect, obtain finished product plate；The mass ratio that finished product plate is put into hydrofluoric acid and nitric acid is：1：In 6 mixed solution, normal temperature
Lower immersion 3min, then pulls out and is drained after being rinsed well with clear water；With edge rolling instrument by the production board material volume after pickling into cylinder
Shape, with carrying out seamless welding processing at plasma welding machine docking port, and the pipe for completing welding naturally cools to room temperature；With
Milling train justifies the pipe rail being welded, and the inner and outer surfaces polishing of pipe then is removed into surfaces externally and internally defect with sand paper, after polishing
Round tube inside diameter tolerance below+0.15mm, wall thickness tolerance is below -0.15mm, and linearity is within ± 0.01mm, axiality
Within ± 0.01mm, surface roughness is in below Ra3.2；Pipe after polishing is put into the mass ratio of hydrofluoric acid and nitric acid
For：1：In 6 mixed solution, 3min is soaked under normal temperature, then pulls out and drains；Pipe is placed in vacuum annealing furnace at 720 DEG C
Under the conditions of vacuum annealing 80min, the vacuum in vacuum annealing furnace need to reach 1 × more than 10-2Pa, tapping temperature≤200 DEG C from
So it is cooled to room temperature；Finally aligned on seven roller straighteners, glacing flatness is not more than 2mm/m, that is, obtains titanium alloy thin-walled tube
Material.
Claims (5)
1. a kind of processing method of titanium alloy thin-walled tube stock, it is characterised in that specifically include following steps：
Step 1
Blanking：Go out the size of titanium alloy plate, and the titanium alloy plate that thickness is met to require according to the Size calculation of light-wall pipe
Cut to suitably sized, obtain titanium alloy plate, it is standby；
Step 2
Surface treatment：Titanium alloy plate made from step 1 is put into polishing machine, the surface defect of titanium alloy plate is removed, obtains
Finished product plate；
Step 3
Pickling：Finished product plate made from step 2 is put into the mixed solution of hydrofluoric acid and nitric acid, 1~4min is soaked under normal temperature,
Then pull out and drained after being rinsed well with clear water；
Step 4
Welding：With edge rolling instrument by the production board material volume after pickling into cylindrical shape, with carrying out nothing at plasma welding machine docking port
Seam welding is handled, and the pipe for completing welding naturally cools to room temperature；
Step 5
Finishing：The pipe rail being welded is justified with milling train, then the inner and outer surfaces of pipe are polished to appearance in removing with sand paper
Planar defect；
Step 6
Cleaning：Pipe after polishing is subjected to pickling again；
Step 7
Vacuum annealing：Pipe is placed in vacuum annealing furnace 40~90min of vacuum annealing under the conditions of 650~750 DEG C, it is naturally cold
But to room temperature；
Step 8
Aligning：By the tubing after step 7 vacuum annealing, aligned on seven roller straighteners, glacing flatness is not more than 2mm/m, i.e.,
Obtain titanium alloy thin-walled tube stock.
2. the processing method of a kind of titanium alloy thin-walled tube stock according to claim 1, it is characterised in that in the step 3
The mass ratio of hydrofluoric acid and nitric acid is：1：4~7.
3. the processing method of a kind of titanium alloy thin-walled tube stock according to claim 1, it is characterised in that in the step 5
Round tube inside diameter tolerance after polishing below+0.15mm, wall thickness tolerance below -0.15mm, linearity within ± 0.01mm,
Axiality is within ± 0.01mm, and surface roughness is in below Ra3.2.
4. the processing method of a kind of titanium alloy thin-walled tube stock according to claim 1, it is characterised in that in the step 6
Pickling it is consistent with the acid washing conditions in step 3.
A kind of 5. processing method of titanium alloy thin-walled tube stock according to claim 1, it is characterised in that in the step 7,
Vacuum in vacuum annealing furnace need to reach 1 × more than 10-2Pa, tapping temperature≤200 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710874965.7A CN107413883A (en) | 2017-09-25 | 2017-09-25 | A kind of processing method of titanium alloy thin-walled tube stock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710874965.7A CN107413883A (en) | 2017-09-25 | 2017-09-25 | A kind of processing method of titanium alloy thin-walled tube stock |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111500963A (en) * | 2020-04-30 | 2020-08-07 | 苏州鑫吴钢结构工程有限公司 | Method for improving surface roughness of steel pipe |
| CN111716078A (en) * | 2019-03-22 | 2020-09-29 | 上海梅山钢铁股份有限公司 | Plasma welding method for straight seam of thin-wall cylindrical steel shell |
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| CN102581062B (en) * | 2012-02-16 | 2013-10-30 | 张家港华裕有色金属材料有限公司 | Method for producing seamless titanium and titanium alloy welded pipe |
| CN105817846A (en) * | 2016-06-12 | 2016-08-03 | 河北首创节能设备有限公司 | Titanium cylinder machining process |
| RU2613256C1 (en) * | 2015-11-26 | 2017-03-15 | Публичное акционерное общество "Научно-производственная корпорация "Иркут" | Manufacturing method for welded titanium tubes |
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| CN111716078A (en) * | 2019-03-22 | 2020-09-29 | 上海梅山钢铁股份有限公司 | Plasma welding method for straight seam of thin-wall cylindrical steel shell |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
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| RJ01 | Rejection of invention patent application after publication |