CN102873098B - Manufacturing method for ultrathin-wall titanium tubing - Google Patents

Manufacturing method for ultrathin-wall titanium tubing Download PDF

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Publication number
CN102873098B
CN102873098B CN201210363940.8A CN201210363940A CN102873098B CN 102873098 B CN102873098 B CN 102873098B CN 201210363940 A CN201210363940 A CN 201210363940A CN 102873098 B CN102873098 B CN 102873098B
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pipe
titanium
tubing
rolling
thickness
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CN102873098A (en
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杨英丽
吴金平
郭荻子
罗媛媛
卢亚锋
赵恒章
赵彬
苏航标
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Xi'an Research Institute of Rare Metal Materials Co., Ltd.
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Northwest Institute for Non Ferrous Metal Research
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Abstract

The invention discloses a manufacturing method for ultrathin-wall titanium tubing. The method includes: firstly, deseaming a titanium tube with the wall thickness of 0.15mm-1.0mm to obtain a tube billet; and secondly, uniformly daubing lubricant on the inner surface of the tube billet prior to performing one-time rolling for the tube billet daubed with the lubricant by a cold pilger mill, and then sequentially performing oil removing, acid washing and vacuum heat treatment for the rolled tube billet so that the ultrathin-wall titanium tubing with the external diameter of 15mm-50mm, the wall thickness of 0.1mm-0.5mm and the ratio of the wall thickness to the external diameter not larger than 0.02 is obtained. The ultrathin-wall titanium tubing is manufactured smoothly by a traditional cold rolling method and by means of controlling mechanical property, rolling Q values, rolling process parameters, tube billet internal diameter and mandrel clearance, the manufactured tubing is good in surface quality, high in plasticity and uniform in size, and the method is suitable for production of various ultrathin-wall titanium tubings with the cold rolling deformability.

Description

A kind of manufacture method of super thin wall type titanium tubing
Technical field
The invention belongs to metal pipe material pressure processing technology field, be specifically related to a kind of manufacture method of super thin wall type titanium tubing.
Background technology
Along with the fast development of Chinese national economy and science and technology, titanium alloy material technology of preparing and product quality are greatly improved, and have driven titanium alloy to use the rapid expansion in field.Pipeline in ripple tubing flexible member connects compensation bellows expansion joint and requires withstand voltage, corrosion-resistant and will have certain compensation rate.The performance of titanium alloy material such as operating temperature, pulsating stress, corrosion-resistant and Technological adaptability etc. are all suitable as the ripple tubing flexible member of each industrial circle.But the cold deformation drag of titanium alloy is large, resilience is serious, and plasticity is not high, cold-forming property is poor, and the difficulty manufacturing bellows and expansion joint with it is very large.Want to produce titanium alloy corrugated pipe class component smoothly, first will prepare the ultra-thin wall seamless tubing that plasticity is good, dimensional accuracy is high.
At present, the processing method of titanium alloy seamless pipe is mainly cold rolling method for making, and producing adoptable method for super thin wall type titanium tubing has pipe-machine addition, tubing-multiple roll finish rolling method, pipe-spinning process three kinds.Pipe-machine addition because obtaining ultra-thin-wall tubing by the titanium tube of thin wall of preparation after multi-pass machine adds, and operation is long, cost is high, and it is large that machine adds distortion, and dimensional accuracy is difficult to ensure, the more important thing is that the plasticity of tubing is not high, is difficult to the needs ensureing that follow-up bellows is shaped.Pipe-spinning process is because titanium alloy resistance of deformation is large, resilience is serious, the cold technology of revolving is difficult to grasp, and lumber recovery is low, cost is high, hot spinning is difficult to ensure dimensional tolerance and surface quality.Traditional tubing multiple roll finish rolling method because of easy to crack, send difficulty to, easily insertion often makes the operation of rolling not set up end to end, be namely exactly that inadequate rolling obtains tubing, its surface quality is poor, wall unevenness is even and can not meet quality requirement.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, and provide a kind of external diameter to be 15mm ~ 50mm, wall thickness is 0.1mm ~ 0.5mm, and wall thickness is not more than the manufacture method of the super thin wall type titanium tubing of 0.02 with the ratio of external diameter.The method production technology is simple, flow process is short, production cost is low, lumber recovery is high, adopt traditional cold rolling method, the smooth manufacture of super thin wall type titanium tubing is realized by controlling the mechanical property of pipe, the rolling Q value ratio of relative sizing reduction (the relative wall thickness reducing amount with), rolling technological parameter and pipe internal diameter and plug gap, the tube surfaces quality manufactured is good, plasticity is high, size uniform, is applicable to the various production with the super thin wall type titanium tubing of cold rolling deformability.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of manufacture method of super thin wall type titanium tubing, and it is characterized in that, the method comprises the following steps:
Step one, be that the titanium pipe of 0.15mm ~ 1.0mm carries out deseaming to wall thickness, obtain pipe;
Step 2, described in step one the inner surface uniform application lubricant of pipe, then cold pilger mill is adopted to carry out a time rolling to smearing the pipe after lubricant, again successively oil removing, pickling and vacuum heat are carried out to the pipe after rolling, obtaining external diameter is 15mm ~ 50mm, wall thickness is 0.1mm ~ 0.5mm, and wall thickness is not more than the super thin wall type titanium tubing of 0.02 with the ratio of external diameter; Control the relative wall thickness reducing amount of pipe and ratio Q >=2.7 of relative sizing reduction in the described operation of rolling, pipe feed is 2mm/ time ~ 3mm/ time, and mill speed is 40 beats/min ~ 80 beats/min.
The manufacture method of above-mentioned a kind of super thin wall type titanium tubing, the pipe of titanium described in step one is seamless titanium tube or welding titanium pipe, and the material of titanium pipe is pure titanium or titanium alloy.
The manufacture method of above-mentioned a kind of super thin wall type titanium tubing, the pipe of titanium described in step one is the titanium pipe of heat treatment state.
The manufacture method of above-mentioned a kind of super thin wall type titanium tubing, the yield strength >=230MPa of pipe described in step one, percentage elongation >=15%.
The manufacture method of above-mentioned a kind of super thin wall type titanium tubing, the diameter 0.3mm ~ 2.0mm less of the internal diameter of pipe of the rolling plug adopted in the operation of rolling described in step 2.
The manufacture method of above-mentioned a kind of super thin wall type titanium tubing, the temperature of vacuum heat described in step 2 is 520 DEG C ~ 650 DEG C, and the time of vacuum heat is 2.5h ~ 3h.
The present invention compared with prior art has the following advantages:
1, production technology of the present invention is simple, flow process is short, production cost is low, lumber recovery is high, process does not produce waste material substantially, and the tube surfaces quality of producing is good, and plasticity is high, size uniform, is applicable to the various production with the titanium alloy ultra-thin tubing of cold rolling deformability.
2, the present invention adopts traditional cold rolling method, realizes the smooth manufacture of super thin wall type titanium tubing by controlling the mechanical property of pipe, the rolling Q value ratio of relative sizing reduction (the relative wall thickness reducing amount with), rolling technological parameter (pipe feed and mill speed) and pipe internal diameter and plug gap.
3, the super thin wall type titanium tubing external diameter adopting method of the present invention to prepare is 15mm ~ 50mm, wall thickness is 0.1mm ~ 0.5mm, and wall thickness is not more than 0.02 with the ratio of external diameter, the percentage elongation of tubing is not less than 30%, meets the instructions for use of the wall thickness needed for the preparation of stop valve, gate valve or other type metal bellows for valves at the seamless super thin wall type titanium tube of 0.1mm ~ 0.5mm.
Below by embodiment, technical scheme of the present invention is described in further detail.
Detailed description of the invention
Embodiment 1
The manufacture of Φ 15mm × 0.10mm ultra-thin-wall TA2 tubing:
The thickness that step one, selectivity meet GB/T3622-1999 standard is the TA2 band of 0.15mm, the TA2 being prepared as Φ 17.1mm × 0.15mm by the circle-welding of routine volume welds tubing, the TA2 tubing that 500 DEG C/1h vacuum heat obtains heat treatment state is carried out to welded pipe material, then deseaming (scrape to repair and remove blemish) is carried out to the TA2 tubing of heat treatment state, obtaining yield strength is 250MPa ~ 260MPa, and percentage elongation is the pipe of 26% ~ 28%;
Step 2, described in step one the inner surface uniform application lubricant (the traditional lubrication agent that drawn and rolled tube is used) of pipe; Then cold pilger mill (LD15 cold pilger mill or LD30 cold pilger mill) is adopted to carry out a time rolling to smearing the pipe after lubricant, the roll of Φ 15mm is adopted in the operation of rolling, the rolling plug of Φ 14.8mm, pipe feed is 2mm/ time, and mill speed is 80 beats/min; Carry out oil removing, pickling and vacuum heat successively to the pipe after rolling again, obtaining external diameter is 15mm, and wall thickness is the ultra-thin-wall TA2 tubing of 0.10mm.
Adopt different vacuum heat systems, the mechanical property of the tubing obtained is different, the results are shown in following table:
The ultra-thin-wall TA2 mechanical properties of tubular goods of table 1 Φ 15mm × 0.10mm
Vacuum heat system Rm(Mpa) Rp0.2(Mpa) A(%)
520℃/3h 370 249 41
620℃/2.5h 361 220 41.5
650℃/2.5h 330 192 35
Embodiment 2
The manufacture of Φ 25.3mm × 0.20mm ultra-thin-wall TA18 tubing:
Step one, chemical composition is selected to meet GB/T3620.1-2007 standard, specification is the cold rolling TA18 seamless tubular goods of Φ 26 × 0.35mm, the TA18 tubing that 700 DEG C/2h vacuum heat obtains heat treatment state is carried out to tubing, then deseaming (scrape to repair and remove blemish) is carried out to the TA18 tubing of heat treatment state, obtaining yield strength is 530MPa, and percentage elongation is the pipe of 15% ~ 18%;
Step 2, described in step one the inner surface uniform application lubricant (the traditional lubrication agent that drawn and rolled tube is used) of pipe; Then adopt cold pilger mill (LD30 cold pilger mill) to carry out a time rolling to smearing the pipe after lubricant, adopt the roll of Φ 25.3mm in the operation of rolling, the rolling plug of Φ 24.86mm, pipe feed is 2.5mm/ time, and mill speed is 60 beats/min; Carry out oil removing, pickling and vacuum heat successively to the pipe after rolling again, obtaining external diameter is 25.3mm, and wall thickness is the ultra-thin-wall TA18 tubing of 0.20mm.
Adopt different vacuum heat systems, the mechanical property of the tubing obtained is different, the results are shown in following table:
The ultra-thin-wall TA18 mechanical properties of tubular goods of table 2 Φ 25.3mm × 0.20mm
Vacuum heat system Rm(Mpa) Rp0.2(Mpa) A(%)
580℃/3h 718 646 31
620℃/2.5h 685 622 39
650℃/2.5h 630 568 40
Embodiment 3
The manufacture of Φ 50mm × 0.50mm ultra-thin-wall TA10 tubing:
Step one, selectivity meet the TA10 seamless tubular goods of the heat treatment state of the Φ 51.3mm × 1.0mm of GB/T3625-2007 standard-required, deseaming (scrape to repair and remove blemish) is carried out to TA10 tubing, obtaining yield strength is 310MPa ~ 315MPa, and percentage elongation is the pipe of 19% ~ 20%;
Step 2, described in step one the inner surface uniform application lubricant (the traditional lubrication agent that drawn and rolled tube is used) of pipe; Then adopt cold pilger mill (LD60 cold pilger mill) to carry out a time rolling to smearing the pipe after lubricant, adopt the roll of Φ 50mm in the operation of rolling, the rolling plug of Φ 49mm, pipe feed is 3.0mm/ time, and mill speed is 40 beats/min; Carry out oil removing, pickling and vacuum heat successively to the pipe after rolling again, obtaining external diameter is 50mm, and wall thickness is the ultra-thin-wall TA10 tubing of 0.50mm.
Adopt different vacuum heat systems, its mechanical property of the tubing obtained slightly difference, the results are shown in following table:
The ultra-thin-wall TA10 mechanical properties of tubular goods of table 3 Φ 50mm × 0.50mm
Vacuum heat system Rm(Mpa) Rp0.2(Mpa) A(%)
580℃/3h 483 379 30
620℃/2.5h 470 346 31
650℃/2.5h 465 335 32
Embodiment 4
The manufacture of Φ 40mm × 0.40mm ultra-thin-wall TA22 tubing:
Step one, selection chemical composition meet the cold rolling TA22 seamless tubular goods of the Φ 41.4mm × 0.6mm of GB/T3620.1-2007 standard, the TA22 tubing that 700 DEG C/2h vacuum heat obtains heat treatment state is carried out to tubing, then deseaming (scrape to repair and remove blemish) is carried out to the TA22 tubing of heat treatment state, obtain yield strength 580MPa, percentage elongation is not less than the pipe of 21%;
Step 2, described in step one the inner surface uniform application lubricant (the traditional lubrication agent that drawn and rolled tube is used) of pipe; Then adopt cold pilger mill (LD60 cold pilger mill) to carry out a time rolling to smearing the pipe after lubricant, adopt the roll of Φ 40mm in the operation of rolling, the rolling plug of Φ 39.2mm, pipe feed is 2mm/ time, and mill speed is 50 beats/min; Carry out oil removing, pickling and vacuum heat successively to the pipe after rolling again, obtaining external diameter is 40mm, and wall thickness is the ultra-thin-wall TA22 tubing of 0.40mm.
Adopt different vacuum heat systems, its mechanical property of the tubing obtained slightly difference, the results are shown in following table:
The ultra-thin-wall TA22 mechanical properties of tubular goods of table 4 Φ 40mm × 0.40mm
Vacuum heat system Rm(Mpa) Rp0.2(Mpa) A(%)
580℃/3h 650 580 30
620℃/2.5h 645 575 32
650℃/2.5h 630 573 33
Embodiment 5
The manufacture of Φ 20mm × 0.40mm ultra-thin-wall TA2 tubing:
Step one, selectivity meet the TA2 seamless titanium tube of the Φ 22mm × 0.8mm of GB/T3625-2007 standard, the TA2 tubing that 500 DEG C/1h vacuum heat obtains heat treatment state is carried out to TA2 seamless titanium tube, then deseaming (scrape to repair and remove blemish) is carried out to the TA2 tubing of heat treatment state, obtaining yield strength is 230MPa ~ 240MPa, and percentage elongation is the pipe of 26% ~ 28%;
Step 2, described in step one the inner surface uniform application lubricant (the traditional lubrication agent that drawn and rolled tube is used) of pipe; Then cold pilger mill (LD15 cold pilger mill or LD30 cold pilger mill) is adopted to carry out a time rolling to smearing the pipe after lubricant, the roll of Φ 20mm is adopted in the operation of rolling, the rolling plug of Φ 19.2mm, pipe feed is 3mm/ time, and mill speed is 80 beats/min; Carry out oil removing, pickling and vacuum heat successively to the pipe after rolling again, obtaining external diameter is 20mm, and wall thickness is the ultra-thin-wall TA2 tubing of 0.40mm.
Adopt different vacuum heat systems, the mechanical property of the tubing obtained is different, the results are shown in following table:
The ultra-thin-wall TA2 mechanical properties of tubular goods of table 5 Φ 20mm × 0.40mm
Vacuum heat system Rm(Mpa) Rp0.2(Mpa) A(%)
520℃/3h 368 245 42
620℃/2.5h 362 223 41
650℃/2.5h 340 198 38
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalence change, all still belong in the protection domain of technical solution of the present invention.

Claims (5)

1. a manufacture method for super thin wall type titanium tubing, is characterized in that, the method comprises the following steps:
Step one, be that the titanium pipe of 0.15mm ~ 1.0mm carries out deseaming to wall thickness, obtain pipe; Described titanium pipe is seamless titanium tube or welding titanium pipe, and the material of titanium pipe is pure titanium or titanium alloy;
Step 2, described in step one the inner surface uniform application lubricant of pipe, then cold pilger mill is adopted to carry out a time rolling to smearing the pipe after lubricant, again successively oil removing, pickling and vacuum heat are carried out to the pipe after rolling, obtaining external diameter is 15mm ~ 50mm, wall thickness is 0.1mm ~ 0.5mm, and wall thickness is not more than the super thin wall type titanium tubing of 0.02 with the ratio of external diameter; Control the relative wall thickness reducing amount of pipe and ratio Q >=2.7 of relative sizing reduction in the described operation of rolling, pipe feed is 2mm/ time ~ 3mm/ time, and mill speed is 40 beats/min ~ 80 beats/min.
2. the manufacture method of a kind of super thin wall type titanium tubing according to claim 1, is characterized in that, the pipe of titanium described in step one is the titanium pipe of heat treatment state.
3. the manufacture method of a kind of super thin wall type titanium tubing according to claim 1, is characterized in that, the yield strength >=230MPa of pipe described in step one, percentage elongation >=15%.
4. the manufacture method of a kind of super thin wall type titanium tubing according to claim 1, is characterized in that, the diameter 0.3mm ~ 2.0mm less of the internal diameter of pipe of the rolling plug adopted in the operation of rolling described in step 2.
5. the manufacture method of a kind of super thin wall type titanium tubing according to claim 1, is characterized in that, the temperature of vacuum heat described in step 2 is 520 DEG C ~ 650 DEG C, and the time of vacuum heat is 2.5h ~ 3h.
CN201210363940.8A 2012-09-26 2012-09-26 Manufacturing method for ultrathin-wall titanium tubing Active CN102873098B (en)

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CN104226684B (en) * 2013-06-06 2016-06-15 中国科学院金属研究所 A kind of thick Ti of 0.1mm2The cold-rolling process of AlNb base alloy foil
CN104561654A (en) * 2013-10-11 2015-04-29 东港市东方高新金属材料有限公司 Titanium alloy No. dfgx-9 rolled tube and preparation method thereof
CN104148439B (en) * 2014-07-08 2016-08-17 宁夏东方钽业股份有限公司 A kind of milling method of high precision titanium alloy pipe
CN104438428A (en) * 2014-09-11 2015-03-25 西北有色金属研究院 Manufacturing method of small-specification TA16 titanium alloy thick-wall pipe
CN105220097B (en) * 2015-11-17 2017-04-12 西部钛业有限责任公司 Method for controlling precipitation direction of intermetallic compounds in titanium alloy tube
CN107598331A (en) * 2017-10-26 2018-01-19 宝鸡市永盛泰钛业有限公司 A kind of welding method of titanium tube
CN111744960A (en) * 2020-06-01 2020-10-09 张家港海岸钛业有限公司 Titanium alloy thin-walled tube processing method

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CN101824564A (en) * 2009-06-03 2010-09-08 东港市东方高新金属材料有限公司 Titanium alloy TC4 cold-rolled tube and production method thereof
CN102389900A (en) * 2011-09-17 2012-03-28 西部钛业有限责任公司 High-precision processing method for Ti-3Al-2.5V (TA18) aviation titanium tube

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5980655A (en) * 1997-04-10 1999-11-09 Oremet-Wah Chang Titanium-aluminum-vanadium alloys and products made therefrom
CN101403082A (en) * 2008-09-11 2009-04-08 西北有色金属研究院 Thermal treatment method for titanium alloy
CN101824564A (en) * 2009-06-03 2010-09-08 东港市东方高新金属材料有限公司 Titanium alloy TC4 cold-rolled tube and production method thereof
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