CN1023817C - T-branch used in pipe-lines and shaping technology thereof - Google Patents
T-branch used in pipe-lines and shaping technology thereof Download PDFInfo
- Publication number
- CN1023817C CN1023817C CN 90106377 CN90106377A CN1023817C CN 1023817 C CN1023817 C CN 1023817C CN 90106377 CN90106377 CN 90106377 CN 90106377 A CN90106377 A CN 90106377A CN 1023817 C CN1023817 C CN 1023817C
- Authority
- CN
- China
- Prior art keywords
- pipe
- superplastic
- tube
- moulding
- technology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007493 shaping process Methods 0.000 title claims description 8
- 238000005516 engineering process Methods 0.000 title abstract description 18
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000005587 bubbling Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000005382 thermal cycling Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials 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 O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 229910007570 Zn-Al Inorganic materials 0.000 description 3
- 238000005039 chemical industry Methods 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000641 cold extrusion Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000002000 scavenging Effects 0.000 description 1
Abstract
The present invention relates to a three-way pipe for a pipeline and a moulding technology thereof. The present invention is mainly characterized in that the three-way pipe is made of superplastic alloy, and the moulding technology comprises the processes: the superplastic preparation of a pipe blank; the superplastic gas expansion and the extrusion composite force moulding; cutting end heads, opening grooves and the rust prevention treatment. The three-way pipe and the moulding technology which are provided by the present invention have the advantages of simple technology, few devices, small power for moulding, uniform thickness of walls of obtained three-way pipes, high use pressure bearing, high precision and no secondary processing.
Description
The present invention relates to the accessory commonly used in the transfer line, a kind of withstand voltage Y-tube and forming technology thereof promptly are provided.
Y-tube is an indispensable accessory commonly used in oil, the chemical industry transfer line.Not high pressure resistant because the Y-tube in the heating pipeline exists sand holes, so can not be used for oil, chemical industry transfer line.Generally adopt at present both at home and abroad cold extrusion technology to produce Y-tube in oil, the chemical industry transfer line, but the required equipment of this technology is huge, and compacting pressure is also very high, and an equipment needs ten thousand yuan of 70-80, moreover, the three-way tube wall thickness ununiformity after the moulding is even.Except that above-mentioned manufacturing process, the domestic people of having adopts another method, promptly in pipe, put into threaded ball, on tube wall, open a hole, insert threaded pull bar from this hole and be threaded, then pull bar is applied pulling force and produces Y-tube with the pipe endosphere, adopt this method shaping Y-tube, though need not that price is the most expensive, volume is doted on big equipment, the three-way tube wall thickness ununiformity after being shaped is even, and the Y-tube height of pulling out also is restricted.
The purpose of this invention is to provide a kind of wall thickness evenly, bear the high production technique of applying pressure, equipment used is simple, power consumption is little, the Y-tube and the forming technology thereof of the superplastic gas-bulging of less investment and the moulding of extruding composite force.
The present invention utilizes superplastic alloy to be easy to the principle of uniform deformation along the crystal boundary slippage at specified conditions, selecting the superplastic alloy pipe for use is blank, be placed on and limit in the mould, under the temperature of superplastic forming, make Y-tube by the inflatable and the effect of extruding composite force, its reparation technology is made up of following operation:
1, superplastic gas-bulging and extruding composite force are shaped
To have superplastic pipe material and put into the mould that two lobe moulds are formed, seal two opening ends with extrusion stem by external force with conductivity, connect power supply, pipe and mould are electrically heated to the temperature of superplastic forming, be incubated, press then given pace bubbling air or nitrogen, meanwhile extrusion stem to the relative direction pusher, finishes until shaping under external force;
2, cut the termination, open groove
The blind end of the good Y-tube that is shaped is removed, reprocess out 45 ° of weld seam grooves of other three port, in addition, can apply rustproof layer from the teeth outwards according to product needed.
Be described in detail withstand voltage Y-tube of embodiment 1-superplasticity 20 steel provided by the present invention and forming technology thereof below in conjunction with accompanying drawing
Sectional view when accompanying drawing 1 is the Y-tube shaping.
The pipe that machining is good heats 890 ℃ of temperature, is incubated 15 minutes, the shrend of coming out of the stove then, and so thermal cycling is three times, and obtaining grain fineness number is 5-7llm, and unit elongation is σ＞200%.Again with φ 45mm, wall thickness 4.0mm, the superplasticity 20 steel pipe bases 1 of long 120mm are put into the mould of being made up of two lobe moulds 2, use tapering circular boop 3 behind the matched moulds, 4 compress, extrusion stem 5,6 respectively with power connection 7,8 connect, provide 12V by high current transformer 9, the power supply of 1600A power, by extrusion stem pipe 1 is carried out electrically heated, insert 11 pairs of pipe thermometrics of thermopair of band magnetic tube by hole 10, scavenging action is also played in hole 10 simultaneously, when temperature is heated to 750 ℃ by extrusion stem 5,6 two ends apply 20 tons of relative squeezes to pipe, 12 send into nitrogen 100-120atm from the hole in the time of extruding.After shaping finishes, cut away the termination of Y-tube one end, car goes out 45 ° of weld seam grooves of other three port again, applies rust-inhibiting paint at last.
By the superplasticity 20 steel Y-tubes that the present invention obtained, inside and outside any surface finish, precision height need not reprocessed.After dissecting in addition, wall thickness is even, and maximum reduction is no more than 12%, and same pieces is born the applying pressure height relatively, and the Y-tube intensity behind the superplastic forming is suitable with normality 20 hardness of steel.
Embodiment 2 super-plastic Zn-Al alloys are withstand voltage antirust Y-tube and forming technology
To have superplastic Zn-Al alloy pipe and put into the mould that two lobe moulds are formed, the forming technology of this Zn-Al alloy Y-tube removes 265 ℃ of forming temperatures, squeeze is 7 tons, and the bulging atmospheric pressure is beyond the 15atm, and other operation and processing condition are all the same with embodiment 1.In addition, this Y-tube needn't be coated with rust-inhibiting paint.
Embodiment 3, and a kind of Tl-6Al-4V is heat-resisting, withstand voltage, antirust, protection against corrosion Y-tube and forming technology.
To have superplastic Tl-6Al-4V pipe and put into the mould that two lobe moulds are formed, it is 930 ℃ that this forming technology removes forming temperature, and squeeze is 30 tons, and beyond the bulging atmospheric pressure 150-170atm, other processing condition are the same with embodiment 1.In addition, needn't be coated with rust-inhibiting paint.
In sum as can be seen, withstand voltage Y-tube provided by the present invention and forming technology thereof, its technology is simple, and equipment used is few, and the shaping required drive is little, and the Y-tube wall thickness of acquisition is even, bears applying pressure height, precision height, does not need secondary processing.
Claims (2)
1, a kind of moulding process of Y-tube is characterized in that it is made up of following operation:
(1) superplastic gas-bulging is shaped with the extruding composite force
To have superplastic pipe material and put into the mould that two lobe moulds are formed, seal two opening ends with extrusion stem by external force with conductivity, connect power supply, pipe and mould are electrically heated to the temperature of superplastic forming, insulation, by given pace bubbling air or nitrogen, meanwhile extrusion stem is following to the relative direction pusher with effect outside, finishes until shaping then;
(2) cut the termination, open groove
The termination of the good Y-tube that is shaped is removed, reprocessed out 45 ° of weld seam grooves of other three port.
2, by the described moulding process of claim 1, it is characterized in that: when making raw material with No. 20 steel, need that in advance it is carried out thermal cycling and handle, so that obtain superplasticity, specific embodiment is as follows:
Heating of pipe blank to 890 ℃ is incubated 15 minutes, the shrend of coming out of the stove, and so heat is followed three times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106377 CN1023817C (en) | 1990-09-17 | 1990-09-17 | T-branch used in pipe-lines and shaping technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106377 CN1023817C (en) | 1990-09-17 | 1990-09-17 | T-branch used in pipe-lines and shaping technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1059961A CN1059961A (en) | 1992-04-01 |
| CN1023817C true CN1023817C (en) | 1994-02-16 |
Family
ID=4880018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90106377 Expired - Fee Related CN1023817C (en) | 1990-09-17 | 1990-09-17 | T-branch used in pipe-lines and shaping technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1023817C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537437B (en) * | 2009-04-22 | 2011-01-05 | 浙江飞挺管业有限公司 | Special pressure relief device for manufacturing three-way pipe fittings by cold extrusion forming |
| CN103920744B (en) * | 2014-05-04 | 2016-01-27 | 唐山诚达建设集团有限公司 | A kind of band arm pipe fitting one process equipment |
| CN104070101B (en) * | 2014-06-25 | 2016-03-02 | 郑州万达重工股份有限公司 | Heavy wall bimetallic three-way pipe cold pressing forming process |
| CN107695624B (en) * | 2017-09-29 | 2019-07-19 | 北京科勒有限公司 | The production method of bathroom hardware shell |
| CN109590676A (en) * | 2018-11-02 | 2019-04-09 | 陈志城 | A kind of preparation process of novel hydraulic molding trolley |
-
1990
- 1990-09-17 CN CN 90106377 patent/CN1023817C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1059961A (en) | 1992-04-01 |
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