CN102873098A - Manufacturing method for ultrathin-wall titanium tubing - Google Patents
Manufacturing method for ultrathin-wall titanium tubing Download PDFInfo
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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
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 and have used the rapid expansion in field.Pipeline connection compensation in the ripple tubing flexible member requires withstand voltage, corrosion-resistant with bellows expansion joint and certain compensation rate will be arranged.The performance of titanium alloy material such as operating temperature, pulsating stress, corrosion-resistant and Technological adaptability etc. all are suitable as the ripple tubing flexible member of each industrial circle.But the cold deformation drag of titanium alloy is large, and resilience is serious, and plasticity is not high, cold-forming property is poor, and is very large with its difficulty of making bellows and expansion joint.Want to produce smoothly the titanium alloy corrugated pipe class component, at 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 three kinds of pipe-machine additions, tubing-multiple roll finish rolling method, pipe-spinning method.Pipe-machine addition is because obtaining ultra-thin-wall tubing with the titanium tube of thin wall of preparation after the multi-pass machine adds, operation is long, cost is high, and it is large that machine adds distortion, and dimensional accuracy is difficult to guarantee, the more important thing is that the plasticity of tubing is not high, is difficult to the needs that guarantee that follow-up bellows is shaped.Pipe-spinning method is large because of the titanium alloy resistance of deformation, 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 guarantee 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, namely is exactly the inadequate rolling tubing that obtains, its surface quality is poor, wall unevenness even and can not satisfy quality requirement.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, and it is 15mm～50mm that a kind of external diameter is provided, and wall thickness is 0.1mm～0.5mm, and the ratio of wall thickness and external diameter is not more than the manufacture method of 0.02 super thin wall type titanium tubing.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 manufacturing of super thin wall type titanium tubing is realized in mechanical property, rolling Q value by the control pipe 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 of making is good, plasticity is high, size uniform is fit to various productions with 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, it is characterized in that, and the method may further comprise the steps:
Step 1, be that the titanium pipe of 0.15mm～1.0mm carries out deseaming to wall thickness, obtain pipe;
Step 2, evenly smear lubricant at the inner surface of pipe described in the step 1, then to carry out a time rolling to smearing pipe behind the lubricant to adopt cold pilger mill, again the pipe after rolling is carried out oil removing, pickling and vacuum heat successively, obtaining external diameter is 15mm～50mm, wall thickness is 0.1mm～0.5mm, and the ratio of wall thickness and external diameter is not more than 0.02 super thin wall type titanium tubing; Control the relative wall thickness reducing amount of pipe and the ratio Q of relative sizing reduction 〉=2.7 in the described operation of rolling, the pipe feed is 2mm/ time～3mm/ time, and mill speed is 40 beats/mins～80 beats/mins.
The manufacture method of above-mentioned a kind of super thin wall type titanium tubing, the pipe of titanium described in the step 1 are 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 the step 1 are 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 the step 1, percentage elongation 〉=15%.
The manufacture method of above-mentioned a kind of super thin wall type titanium tubing, the diameter of the rolling plug that adopts in the operation of rolling described in the step 2 is than the little 0.3mm～2.0mm of internal diameter of pipe.
The manufacture method of above-mentioned a kind of super thin wall type titanium tubing, the temperature of vacuum heat described in the step 2 are 520 ℃～650 ℃, 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 fit to various productions with titanium alloy ultra-thin tubing of cold rolling deformability.
2, the present invention adopts traditional cold rolling method, and the smooth manufacturing of super thin wall type titanium tubing is realized in the mechanical property, rolling Q value by the control pipe 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, adopting the super thin wall type titanium tubing external diameter of method preparation of the present invention 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%, satisfies stop valve, gate valve or other type metal bellows for valves and prepares required wall thickness in the instructions for use of 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.
The specific embodiment
Embodiment 1
The manufacturing of Φ 15mm * 0.10mm ultra-thin-wall TA2 tubing:
The thickness that step 1, selectivity satisfy the GB/T3622-1999 standard is the TA2 band of 0.15mm, be prepared as the TA2 welding tubing of Φ 17.1mm * 0.15mm by the circle-welding of routine volume, the welded pipe material is carried out the TA2 tubing that 500 ℃/1h vacuum heat obtains heat treatment state, then deseaming (scrape to repair and remove blemish) is carried out in the TA2 tubing of heat treatment state, obtaining yield strength is 250MPa～260MPa, and percentage elongation is 26%～28% pipe;
Step 2, evenly smear lubricant (the traditional lubrication agent that drawn and rolled tube is used) at the inner surface of pipe described in the step 1; Then to carry out a time rolling to smearing pipe behind the lubricant to adopt cold pilger mill (LD15 cold pilger mill or LD30 cold pilger mill), adopt the roll of Φ 15mm in the operation of rolling, the rolling plug of Φ 14.8mm, pipe feed are 2mm/ time, and mill speed is 80 beats/mins; Again the pipe after rolling is carried out oil removing, pickling and vacuum heat successively, 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 that obtains 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
| The 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 manufacturing of Φ 25.3mm * 0.20mm ultra-thin-wall TA18 tubing:
Step 1, select chemical composition to satisfy the GB/T3620.1-2007 standard, specification is the cold rolling TA18 seamless tubular goods of Φ 26 * 0.35mm, tubing is carried out the TA18 tubing that 700 ℃/2h vacuum heat obtains heat treatment state, then deseaming (scrape to repair and remove blemish) is carried out in the TA18 tubing of heat treatment state, obtaining yield strength is 530MPa, and percentage elongation is 15%～18% pipe;
Step 2, evenly smear lubricant (the traditional lubrication agent that drawn and rolled tube is used) at the inner surface of pipe described in the step 1; Then to carry out a time rolling to smearing pipe behind the lubricant to adopt cold pilger mill (LD30 cold pilger mill), adopts the roll of Φ 25.3mm in the operation of rolling, the rolling plug of Φ 24.86mm, and the pipe feed is 2.5mm/ time, mill speed is 60 beats/mins; Again the pipe after rolling is carried out oil removing, pickling and vacuum heat successively, 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 that obtains 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
| The 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 manufacturing of Φ 50mm * 0.50mm ultra-thin-wall TA10 tubing:
Step 1, selectivity satisfy the TA10 seamless tubular goods of heat treatment state of the Φ 51.3mm * 1.0mm of GB/T3625-2007 standard-required, TA10 tubing is carried out deseaming (scrape to repair and remove blemish), obtaining yield strength is 310MPa～315MPa, and percentage elongation is 19%～20% pipe;
Step 2, evenly smear lubricant (the traditional lubrication agent that drawn and rolled tube is used) at the inner surface of pipe described in the step 1; Then to carry out a time rolling to smearing pipe behind the lubricant to adopt cold pilger mill (LD60 cold pilger mill), adopts the roll of Φ 50mm in the operation of rolling, the rolling plug of Φ 49mm, and the pipe feed is 3.0mm/ time, mill speed is 40 beats/mins; Again the pipe after rolling is carried out oil removing, pickling and vacuum heat successively, 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 that obtains is slightly variant, the results are shown in following table:
The ultra-thin-wall TA10 mechanical properties of tubular goods of table 3 Φ 50mm * 0.50mm
| The 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 manufacturing of Φ 40mm * 0.40mm ultra-thin-wall TA22 tubing:
Step 1, selection chemical composition satisfy the cold rolling TA22 seamless tubular goods of the Φ 41.4mm * 0.6mm of GB/T3620.1-2007 standard, tubing is carried out the TA22 tubing that 700 ℃/2h vacuum heat obtains heat treatment state, then deseaming (scrape to repair and remove blemish) is carried out in the TA22 tubing of heat treatment state, obtain yield strength 580MPa, percentage elongation is not less than 21% pipe;
Step 2, evenly smear lubricant (the traditional lubrication agent that drawn and rolled tube is used) at the inner surface of pipe described in the step 1; Then to carry out a time rolling to smearing pipe behind the lubricant to adopt cold pilger mill (LD60 cold pilger mill), adopts the roll of Φ 40mm in the operation of rolling, the rolling plug of Φ 39.2mm, and the pipe feed is 2mm/ time, mill speed is 50 beats/mins; Again the pipe after rolling is carried out oil removing, pickling and vacuum heat successively, 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 that obtains is slightly variant, the results are shown in following table:
The ultra-thin-wall TA22 mechanical properties of tubular goods of table 4 Φ 40mm * 0.40mm
| The 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 manufacturing of Φ 20mm * 0.40mm ultra-thin-wall TA2 tubing:
Step 1, selectivity satisfy the TA2 seamless titanium tube of the Φ 22mm * 0.8mm of GB/T3625-2007 standard, the TA2 seamless titanium tube is carried out the TA2 tubing that 500 ℃/1h vacuum heat obtains heat treatment state, then deseaming (scrape to repair and remove blemish) is carried out in the TA2 tubing of heat treatment state, obtaining yield strength is 230MPa～240MPa, and percentage elongation is 26%～28% pipe;
Step 2, evenly smear lubricant (the traditional lubrication agent that drawn and rolled tube is used) at the inner surface of pipe described in the step 1; Then to carry out a time rolling to smearing pipe behind the lubricant to adopt cold pilger mill (LD15 cold pilger mill or LD30 cold pilger mill), adopt the roll of Φ 20mm in the operation of rolling, the rolling plug of Φ 19.2mm, pipe feed are 3mm/ time, and mill speed is 80 beats/mins; Again the pipe after rolling is carried out oil removing, pickling and vacuum heat successively, 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 that obtains 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
| The 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 only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalence of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (6)
1. the manufacture method of a super thin wall type titanium tubing is characterized in that, the method may further comprise the steps:
Step 1, be that the titanium pipe of 0.15mm～1.0mm carries out deseaming to wall thickness, obtain pipe;
Step 2, evenly smear lubricant at the inner surface of pipe described in the step 1, then to carry out a time rolling to smearing pipe behind the lubricant to adopt cold pilger mill, again the pipe after rolling is carried out oil removing, pickling and vacuum heat successively, obtaining external diameter is 15mm～50mm, wall thickness is 0.1mm～0.5mm, and the ratio of wall thickness and external diameter is not more than 0.02 super thin wall type titanium tubing; Control the relative wall thickness reducing amount of pipe and the ratio Q of relative sizing reduction 〉=2.7 in the described operation of rolling, the pipe feed is 2mm/ time～3mm/ time, and mill speed is 40 beats/mins～80 beats/mins.
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 the step 1 is seamless titanium tube or welding titanium pipe, and the material of titanium pipe is pure titanium or titanium alloy.
3. 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 the step 1 is the titanium pipe of heat treatment state.
4. 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 the step 1, percentage elongation 〉=15%.
5. the manufacture method of a kind of super thin wall type titanium tubing according to claim 1 is characterized in that, the diameter of the rolling plug that adopts in the operation of rolling described in the step 2 is than the little 0.3mm～2.0mm of internal diameter of pipe.
6. 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 the step 2 is 520 ℃～650 ℃, and the time of vacuum heat is 2.5h～3h.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104148439A (en) * | 2014-07-08 | 2014-11-19 | 宁夏东方钽业股份有限公司 | Method for rolling high-precision titanium alloy pipes |
| 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 |
| 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 |
| CN105220097A (en) * | 2015-11-17 | 2016-01-06 | 西部钛业有限责任公司 | A kind of method controlling intermetallic compound precipitation direction in titanium alloy tube |
| 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 |
| 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 |
| CN113543901A (en) * | 2019-03-15 | 2021-10-22 | 杰富意钢铁株式会社 | Method for manufacturing seamless square steel pipe |
| CN114850219A (en) * | 2022-04-11 | 2022-08-05 | 西安诺博尔稀贵金属材料股份有限公司 | Preparation method of high-precision thin-diameter thin-wall nickel-titanium alloy pipe |
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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 |
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| 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 |
| CN113543901A (en) * | 2019-03-15 | 2021-10-22 | 杰富意钢铁株式会社 | Method for manufacturing seamless square steel pipe |
| 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 |
| CN114850219A (en) * | 2022-04-11 | 2022-08-05 | 西安诺博尔稀贵金属材料股份有限公司 | Preparation method of high-precision thin-diameter thin-wall nickel-titanium alloy pipe |
| CN114850219B (en) * | 2022-04-11 | 2023-10-27 | 西安诺博尔稀贵金属材料股份有限公司 | Preparation method of high-precision thin-diameter thin-wall nickel-titanium alloy pipe |
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Effective date of registration: 20190227 Address after: Room 10101, Unit 1, Building No. 45, Fengcheng No. 2 Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province, 710016 Patentee after: Xi'an Research Institute of Rare Metal Materials Co., Ltd. Address before: Weiyang road 710016 Shaanxi city of Xi'an province No. 96 Patentee before: Xibei Non-ferrous Metals Research Inst. |