CN103157956A - Processing method of nickel-titanium memorial alloy tube with thin diameter and thick wall - Google Patents
Processing method of nickel-titanium memorial alloy tube with thin diameter and thick wall Download PDFInfo
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- CN103157956A CN103157956A CN2011104256193A CN201110425619A CN103157956A CN 103157956 A CN103157956 A CN 103157956A CN 2011104256193 A CN2011104256193 A CN 2011104256193A CN 201110425619 A CN201110425619 A CN 201110425619A CN 103157956 A CN103157956 A CN 103157956A
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Abstract
The invention discloses a processing method of a nickel-titanium memorial alloy tube with a thin diameter and a thick wall and belongs to the field of material processing. The processing method of the nickel-titanium memorial alloy tube with thin diameter and thick wall includes: manufacturing a nickel-titanium memorial alloy tube blank according to actual use requirements and adopting a method of three-roller cold rolling to roll the inner diameter into 3 to 8 millimeters according to a gate working rate of 10% to 25%; and then enabling the inner diameter to nearly reach a final size by conducting rotary swaging, wherein rotary swaging is conducted at a working rate of not more than 30% of gate deformation; processing the outer diameter into a needed size on the premise of guaranteeing that the inner diameter reaches an appropriate size by drawing, wherein the gate deformation is 5% to 15%; and finally obtaining a finished product of the tube with the thick wall and the thin diameter by correcting and cylindrical grinding. According to the processing method of the nickel-titanium memorial alloy tube with thin diameter and thick wall, the nickel-titanium memorial alloy tube with the thin diameter of lower than 3 millimeters and the thick wall of 1millimeter to 3 millimeters can be manufactured. The nickel-titanium memorial alloy tube with the thin diameter and the thick wall has the advantages of possessing an appropriate organization and an axial structure and being particularly suitable for preparing the nickel-titanium memorial alloy thin diameter tube connector with high recoverability.
Description
Technical field
The invention belongs to material processing field, relate in particular to Ultimum Ti thin footpath thick-walled pipe processing preparation.
Background technology
Along with the extensive use of Ultimum Ti in engineering is used, the processing of Ultimum Ti material preparation also becomes one of bottleneck of its engineering application of restriction gradually.Wherein, comparatively be typically the Ultimum Ti pipeline and connect the application pipe joint, engineering is used to be needed, and pipe joint need to possess certain wall thickness, also need simultaneously to consider last machining allowance, so pipe joint has the characteristics of thickness of pipe wall usually with Ultimum Ti tubing.At present, external diameter also is used widely in engineering is used with the Ultimum Ti pipe joint less than the thin diameter tube road connection of 4mm, but because internal diameter of pipe joint is little, wall thickness is thicker, can't prepare the heavy wall that meets dimensional requirement thin footpath Ultimum Ti pipe with common process, mostly adopt at present the method for machined preparation from the bar.But the bar processing method is not only wasted material, and the material structure states such as microstructure and texture are also undesirable, and preparing Ultimum Ti thin footpath thick-wall tube is that at present thin footpath Ultimum Ti pipe joint engineering is used problem demanding prompt solution.
Ultimum Ti is that the strength of materials is high, and preliminary work hardening rate is large, and the plastic working interval is narrow, difficult processing metal; Simultaneously thin footpath thick-walled pipe with respect to large footpath light-wall pipe, equipment and process is required all strict many, so only have the rational technological process of formulation and technique just can prepare Ultimum Ti thin footpath thick-wall tube.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of Ultimum Ti thin footpath thick-walled pipe processing method, the method comprises the steps:
(1) make the Ultimum Ti pipe by machined or thermal processing method;
(2) press pass reduction 10%-25%, adopt three roller cold rolling technologies that internal diameter is rolling to 3-8mm;
(3) then the cold rolling tubing of Ultimum Ti that first step (2) is obtained processed Ultimum Ti tubing by swaging at 700～900 degree insulation 20～40min, and pass deformation is no more than 30%;
(4) by drawing, the Ultimum Ti tubing that step (3) obtains is processed pass deformation 5%-15%;
(5) at last by aligning, peripheral milling obtains below internal diameter 3mm, the finished product of wall thickness 1mm-3mm thin footpath thick-wall tube.
In step (1), the size of Ultimum Ti pipe can be returned according to reality use need cold deformation and obtain.
Often in described step (2) generally will carry out intermediate annealing after rolling through 2 passages, the condition of intermediate annealing is that temperature is 500～700 degree, and the time is 0.5～1.5 hour, and optimum condition is that temperature is 600 degree, and the time is one hour.
The rolling preferable range of internal diameter described in step (2) is 4-6mm.
The front preferably cold rolling tubing of Ultimum Ti being spent 800 of swaging in step (3) is incubated 30min.
By the processing of swaging, pipe internal diameter is reached near required finished product internal diameter size in step (3), generally makes internal diameter size than the large 0～0.5mm of required finished product internal diameter size, can by the processing characteristics of processing Nitinol determine internal diameter allowance how much; Control the drawing deformation amount by step (4) again and make internal diameter reach under the prerequisite of required finished product internal diameter size, external diameter is machined to is slightly larger than required finished product outside dimension (generally than required finished product outside dimension large 0.03～0.2mm).
Beneficial effect of the present invention is: the operations such as Ultimum Ti pipe of the present invention adopts three-roll rolling, swages, drawing, aligning, can prepare below internal diameter 3mm the thin footpath thick-wall tube Ultimum Ti tubing of wall thickness 1mm-3mm.And this tubing has tiny uniform formation and rational texture configuration, possesses the good recoverability of remembering, and is applicable to the material preparation that Ultimum Ti thin diameter tube joint is used in thin diameter tube road connection.
The specific embodiment
The invention provides the method that Ultimum Ti thin footpath thick-wall tube prepares processing, be described in further detail below in conjunction with specific embodiment.
Embodiment 1:
1, at first make external diameter 16mm, internal diameter 8mm Ultimum Ti pipe by machining mode;
2, by three cold mill multi-pass rollings, the Ultimum Ti pipe is machined to external diameter 10mm, internal diameter 5.5mm, rolling technological parameter is: every time working modulus 10～15%, the intermediate annealing in one hour of every 2 passage 600 degree;
3, with the cold rolling tubing of Ultimum Ti in 800 degree insulation half an hour, then carry out hot-swage with passage processing capacity 10～15%, swage to internal diameter be 2mm, this moment, external diameter was 7.5mm;
4, will swage the Ultimum Ti tubing that makes by 7.3mm, 7.0mm, 6.8mm, the cold drawing of 6.55mm four-pass, pass deformation is respectively 6%, 10%, and 7%, 5%; Obtain internal diameter 1.9mm, the Ultimum Ti tubing of external diameter 6.55mm;
5, cold drawn Ultimum Ti tubing is aligned by thermal straightening machine, the peripheral milling polished surface obtains external diameter 6.5mm, the Ultimum Ti heavy wall thin diameter tube material of internal diameter 1.9mm.
Embodiment 2:
1, at first make external diameter 30mm, internal diameter 15mm Ultimum Ti pipe by fashion of extrusion;
2, by three cold mill multi-pass rollings, the Ultimum Ti pipe is machined to external diameter 14mm, internal diameter 7mm, rolling technological parameter is: every time working modulus 20～25%, the intermediate annealing in one hour of every 2 passage 600 degree;
3, with the cold rolling tubing of Ultimum Ti in 800 degree insulation half an hour, then carry out hot-swage with pass deformation 25～30%, swage to internal diameter be 3.0mm, this moment, external diameter was 10mm;
4, will swage the Ultimum Ti tubing that makes by 9.65mm, 9.3mm, 9.1mm three passage cold drawings, pass deformation is respectively: 8%, 8%, 5%; Obtain internal diameter 3mm, the Ultimum Ti tubing of external diameter 9.1mm;
5, cold drawn Ultimum Ti tubing is aligned by thermal straightening machine, the peripheral milling polished surface obtains external diameter 9.0mm, the Ultimum Ti heavy wall thin diameter tube material of internal diameter 3mm.
Embodiment 3:
1, at first make external diameter 16mm, internal diameter 8mm Ultimum Ti pipe by machining mode;
2, by three cold mill multi-pass rollings, the Ultimum Ti pipe is machined to external diameter 9mm, internal diameter 4.5mm, rolling technological parameter is: every time working modulus 10～13%, the intermediate annealing in one hour of every 2 passage 600 degree;
3, with the cold rolling tubing of Ultimum Ti in 800 degree insulation half an hour, then carry out hot-swage with pass deformation 8%, swage to internal diameter be 3.1mm, this moment, external diameter was 6mm;
4, will swage the Ultimum Ti tubing that makes by 5.7mm, 5.4mm, 5.2mm, the cold drawing of 5.05mm four-pass, pass deformation is respectively: 13%, 14%, 11%, 11%; Obtain internal diameter 3mm, the Ultimum Ti tubing of external diameter 5.05mm;
5, cold drawn Ultimum Ti tubing is aligned by thermal straightening machine, the peripheral milling polished surface obtains external diameter 5.0mm, the Ultimum Ti heavy wall thin diameter tube material of internal diameter 3mm.
Above embodiment is for understanding the present invention's; be not to be limitation of the present invention, the technical staff in relevant field is on the basis of the described technical scheme of claim; can also make multiple variation or distortion, the variation that all are equal to or distortion all should be within protection scope of the present invention.
Claims (7)
1. Ultimum Ti thin footpath thick-walled pipe processing method, it is characterized in that: this processing method comprises the following steps:
(1), make the Ultimum Ti pipe by machined or thermal processing method;
(2), adopt three roller cold rolling technologies with billet production to internal diameter 3-8mm, pass reduction 10%-25%;
(3), the Ultimum Ti tubing that first step (2) obtained is at 700～900 degree insulation 20～40min, then by swaging, Ultimum Ti tubing processed, pass deformation is no more than 30%;
(4), by drawing, the Ultimum Ti tubing that step (3) obtains is processed pass deformation 5%-15%;
(5), through aligning, after peripheral milling, make that internal diameter 3mm is following, the Ultimum Ti thin footpath thick-wall tube of wall thickness 1-3mm.
2. processing method according to claim 1 is characterized in that: often in step (2) will carry out intermediate annealing after rolling through 2 passages, annealing temperature is 500～700 degree, 0.5～1.5 hour time.
3. processing method according to claim 2 is characterized in that: often in step (2) will carry out intermediate annealing after rolling through 2 passages, annealing temperature is 600 degree, 1 hour time.
4. processing method according to claim 1 is characterized in that: swage in step (3) front first with the cold rolling tubing of Ultimum Ti at 800 degree insulation 30min.
5. processing method according to claim 1 is characterized in that: adopt in step (2) three roller cold rolling technologies with billet production to internal diameter 4-6mm.
6. processing method according to claim 1, is characterized in that: internal diameter size is machined to than the large 0～0.5mm of required finished product internal diameter size in step (3).
7. processing method according to claim 1, is characterized in that: outside dimension is machined to than the large 0.03～0.2mm of required finished product outside dimension in step (4).
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| CN201110425619.3A CN103157956B (en) | 2011-12-16 | 2011-12-16 | Processing method of nickel-titanium memorial alloy tube with thin diameter and thick wall |
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| CN201110425619.3A CN103157956B (en) | 2011-12-16 | 2011-12-16 | Processing method of nickel-titanium memorial alloy tube with thin diameter and thick wall |
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| CN103157956A true CN103157956A (en) | 2013-06-19 |
| CN103157956B CN103157956B (en) | 2015-04-15 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753146A (en) * | 2014-01-23 | 2014-04-30 | 常州盛德无缝钢管有限公司 | Nickel base alloy tube producing technology for high-pressure boiler |
| CN104438430A (en) * | 2014-11-21 | 2015-03-25 | 青岛麦特瑞欧新材料技术有限公司 | Special-shaped titanium alloy capillary tube processing method |
| CN104475479A (en) * | 2014-09-25 | 2015-04-01 | 北京科技大学 | Technology for preparing small-bore and thick-wall metal tubes by rotary swaging technique |
| CN104624713A (en) * | 2014-12-17 | 2015-05-20 | 北京有色金属研究总院 | Fabrication method of small precise thin-wall seamless titanium alloy tube |
| CN104668892A (en) * | 2013-12-02 | 2015-06-03 | 江西昌河航空工业有限公司 | Shell nosing machining technology method for pull rod of helicopter |
| CN105414426A (en) * | 2015-12-11 | 2016-03-23 | 西北有色金属研究院 | Hot rotary forging method of zinc alloy small-specification pipe or rod |
| CN108145380A (en) * | 2017-12-07 | 2018-06-12 | 北京大学深圳研究院 | A kind of degradable processing method for absorbing stent Mg alloy thin wall pipe |
| CN108637033A (en) * | 2018-04-13 | 2018-10-12 | 西安瑞鑫科金属材料有限责任公司 | A method of preparing titanium alloy capillary tubes |
| CN108715986A (en) * | 2018-06-26 | 2018-10-30 | 哈尔滨工程大学 | A method of improving austenitic Ti-based shape memory alloy temperature-room type plasticity by adjusting texture |
| CN109047370A (en) * | 2018-08-03 | 2018-12-21 | 西安兴硕新材料科技有限公司 | A kind of niti-shaped memorial alloy heterotype tubing processing technology |
| CN111215473A (en) * | 2018-11-23 | 2020-06-02 | 有研工程技术研究院有限公司 | Preparation method of high-precision small-diameter thin-wall aluminum alloy pipe capable of flaring and bending |
| CN111438318A (en) * | 2020-04-10 | 2020-07-24 | 西安交通大学 | Thin-wall high-strength titanium alloy pipe and preparation method thereof |
| CN113000624A (en) * | 2021-03-09 | 2021-06-22 | 江苏盛玛特新材料科技有限公司 | Nickel-titanium superelastic pipe and industrial preparation method and application thereof |
| CN113025929A (en) * | 2021-03-09 | 2021-06-25 | 江苏盛玛特新材料科技有限公司 | Manufacturing method of W fiber reinforced TiNi alloy tube with high X-ray visibility |
| CN114603307A (en) * | 2020-12-03 | 2022-06-10 | 无锡苏嘉法斯特汽车零配件有限公司 | Method for processing small-diameter thick-wall pipe for automobile shock absorber |
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Cited By (19)
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| CN104668892A (en) * | 2013-12-02 | 2015-06-03 | 江西昌河航空工业有限公司 | Shell nosing machining technology method for pull rod of helicopter |
| CN103753146A (en) * | 2014-01-23 | 2014-04-30 | 常州盛德无缝钢管有限公司 | Nickel base alloy tube producing technology for high-pressure boiler |
| CN103753146B (en) * | 2014-01-23 | 2016-06-08 | 常州盛德无缝钢管有限公司 | A kind of high-pressure boiler nickel-based alloy pipe production technology |
| CN104475479A (en) * | 2014-09-25 | 2015-04-01 | 北京科技大学 | Technology for preparing small-bore and thick-wall metal tubes by rotary swaging technique |
| CN104438430B (en) * | 2014-11-21 | 2017-06-20 | 青岛麦特瑞欧新材料技术有限公司 | A kind of titanium alloy abnormal shape capillary tubes processing method |
| CN104438430A (en) * | 2014-11-21 | 2015-03-25 | 青岛麦特瑞欧新材料技术有限公司 | Special-shaped titanium alloy capillary tube processing method |
| CN104624713A (en) * | 2014-12-17 | 2015-05-20 | 北京有色金属研究总院 | Fabrication method of small precise thin-wall seamless titanium alloy tube |
| CN105414426B (en) * | 2015-12-11 | 2017-07-04 | 西北有色金属研究院 | A kind of hot-swage method of kirsite small specification tube or bar |
| CN105414426A (en) * | 2015-12-11 | 2016-03-23 | 西北有色金属研究院 | Hot rotary forging method of zinc alloy small-specification pipe or rod |
| CN108145380A (en) * | 2017-12-07 | 2018-06-12 | 北京大学深圳研究院 | A kind of degradable processing method for absorbing stent Mg alloy thin wall pipe |
| CN108145380B (en) * | 2017-12-07 | 2019-09-06 | 北京大学深圳研究院 | A kind of degradable processing method for absorbing bracket Mg alloy thin wall pipe |
| CN108637033A (en) * | 2018-04-13 | 2018-10-12 | 西安瑞鑫科金属材料有限责任公司 | A method of preparing titanium alloy capillary tubes |
| CN108715986A (en) * | 2018-06-26 | 2018-10-30 | 哈尔滨工程大学 | A method of improving austenitic Ti-based shape memory alloy temperature-room type plasticity by adjusting texture |
| CN109047370A (en) * | 2018-08-03 | 2018-12-21 | 西安兴硕新材料科技有限公司 | A kind of niti-shaped memorial alloy heterotype tubing processing technology |
| CN111215473A (en) * | 2018-11-23 | 2020-06-02 | 有研工程技术研究院有限公司 | Preparation method of high-precision small-diameter thin-wall aluminum alloy pipe capable of flaring and bending |
| CN111438318A (en) * | 2020-04-10 | 2020-07-24 | 西安交通大学 | Thin-wall high-strength titanium alloy pipe and preparation method thereof |
| CN114603307A (en) * | 2020-12-03 | 2022-06-10 | 无锡苏嘉法斯特汽车零配件有限公司 | Method for processing small-diameter thick-wall pipe for automobile shock absorber |
| CN113000624A (en) * | 2021-03-09 | 2021-06-22 | 江苏盛玛特新材料科技有限公司 | Nickel-titanium superelastic pipe and industrial preparation method and application thereof |
| CN113025929A (en) * | 2021-03-09 | 2021-06-25 | 江苏盛玛特新材料科技有限公司 | Manufacturing method of W fiber reinforced TiNi alloy tube with high X-ray visibility |
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Effective date of registration: 20190226 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Research Institute of engineering and Technology Co., Ltd. Address before: No. 2, Xinjie street, Xicheng District, Beijing, Beijing Patentee before: General Research Institute for Nonferrous Metals |