CN103170516A - Short-process preparation method of magnesium or magnesium alloy capillary - Google Patents
Short-process preparation method of magnesium or magnesium alloy capillary Download PDFInfo
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- CN103170516A CN103170516A CN2013100684571A CN201310068457A CN103170516A CN 103170516 A CN103170516 A CN 103170516A CN 2013100684571 A CN2013100684571 A CN 2013100684571A CN 201310068457 A CN201310068457 A CN 201310068457A CN 103170516 A CN103170516 A CN 103170516A
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Abstract
The invention discloses a short-process preparation method of a magnesium or magnesium alloy capillary. The method comprises the steps that: a small-diameter thin-walled magnesium or magnesium alloy tube with smooth inner and outer surfaces, continuous columnar grain structure, and excellent cold-processing performance is prepared with a continuous directional solidification technology; under a condition with no surface treatment, the magnesium or magnesium alloy tube is directly subjected to a subsequent drawing process, wherein no intermediate annealing or a small volume of intermediate annealing is needed during the drawing process, such that the magnesium or magnesium alloy capillary is prepared with a short process and with high efficiency. According to the invention, the small-diameter thin-walled magnesium or magnesium alloy tube prepared with the continuous directional solidification technology is directly subjected to the drawing process, such that the magnesium or magnesium alloy capillary is prepared; and no intermediate annealing or a small volume of intermediate annealing is needed during the drawing process. Therefore, the method provided by the invention has the advantages of short process flow, high production efficiency, and low cost. During the capillary drawing process, no process such as cutting, machining, and pickling is needed, such that capillary processing efficiency can be greatly improved.
Description
Technical field
The present invention relates to the metal material processing technical field, particularly relate to a kind of magnesium or magnesium alloy short process making method capillaceous.
Background technology
Endovascular stent is one of effective method of Cardiovarscular, is widely used in the fields such as medical-therapeutic treatment of human body.Metal capillary is the critical piece of metallic blood vessel inner support, is the key that determines metallic blood vessel inner support quality.At present, metallic blood vessel inner bracket material used mainly contains the metal capillaries such as stainless steel, cobalt alloy and titanium alloy, but these metal capillaries exist permanently retain in body, to have certain hyperamization bolt formative, an ISR still higher and can cause the problem such as vascular wall weakness, its application is extremely restricted, thereby forces people to seek new alternative metals capillary material.research is found, compare with the traditional metal capillary material, magnesium and magnesium alloy have significant advantage: (1) magnesium is essential element in human body, to be only second to calcium, the macroelement of sodium and potassium, 2) magnesium has degradability in human body, easily absorbed by body tissue, excessive magnesium ion can excrete by urine, (3) its corrosion product is to human body nonhazardous effect, and participate in the human homergy, can effectively avoid implanting the later stage causes endometrial hyperplasia and ISR to the stimulation of vascular wall, (4) compare with other biomedical metallic material, magnesium and people's biomechanics of bone compatibility are better, can effectively avoid not mating and causing bone strength to reduce and heal the problem such as slow due to embedded material and people's flexible bone modulus, (5) magnesium resource is relatively abundant, cheap [see: Qi Wenjun. Guangdong Province's magnesium industry Technology Roadmap. Guangzhou: publishing house of South China Science ﹠ Engineering University, 2010:P34].Therefore, magnesium and magnesium alloy show huge potentiality as biomedical metallic material of new generation, and the substitution material in fields such as medical-therapeutic treatment of human body as metals such as stainless steel, cobalt alloy and titanium alloys has potential application prospect.
Yet the medical magnesium or the magnesium alloy capillary that are used for endovascular stent etc. require material must have good degradability, biocompatibility and good mechanical compatibility.Therefore, only have preparation high purity, homogeneous chemical composition, outstanding magnesium or the magnesium alloy capillary of surface quality could satisfy medical requirement.Magnesium or the general preparation technology of magnesium alloy capillary of exploitation are at present: ingot casting → hot extrusion → solution treatment+quenching → machined → solution treatment+quenching → heating+empty drawing → solution treatment+quenching → surface finish [is seen: Yu Baoyi, Wu Yongguang, He Miao, Deng. a kind of process for forming magnesium alloy ultra-fine thin-wall tube for degradable blood vessel bracket. Chinese patent, CN101085377A, 2007-01-12].The advantages such as it is more ripe that above capillary production method has production technology, and product quality is stable, but technique is numerous and diverse, long flow path, energy consumption is large, production efficiency is low, and production cost is high; The ingot casting homogeneity of ingredients is relatively poor, and the capillary performance homogeneity of same ingot casting preparation is relatively poor; Material is in process and after processing, easily oxidation of surface, and surface quality is poor; Waste of material is serious, lumber recovery is low; Repeatedly the capillary inner surface is wrinkling and wall unevenness is even because the inhomogeneities of metal flow easily causes during empty drawing, thereby affects magnesium or magnesium alloy surface quality capillaceous.Above these problems have all greatly limited the fast development capillaceous of medical magnesium or magnesium alloy and have applied.
Summary of the invention
The object of the invention is to for above-mentioned existing problems and deficiency, high magnesium or the magnesium alloy short process making method capillaceous of properties of product that a kind of production technology is simple, flow process is short, efficient is high, cost is low, prepare is provided.
Technical scheme of the present invention is achieved in that
Magnesium of the present invention or magnesium alloy short process making method capillaceous is characterized in comprising the steps:
A, magnesium or magnesium alloy are melted under 700～850 ℃, adopt glass tube down-drawing on continuous directional solidification apparatus take the casting speed of 30～50mm/min prepare external diameter as 5.0～10.0mm, wall thickness as 1.0～2.0mm and surfaces externally and internally light, have continuous cylindrical crystalline texture, good magnesium or the magnesium alloy pipe of cold-forming property.
B, directly magnesium or magnesium alloy pipe are carried out multi-pass without any surface treatment and draw and dial processing, draw to dial and need not to carry out intermediate annealing in process or only need a small amount of process annealing, and drawing and dialling processing is first to carry out 1～15 passage to have core to draw to dial, carrying out 1～15 passage sky draws and dials again, have core to draw to dial and empty draw dial draw track lining time working modulus all between 1.2～1.5, finally obtaining external diameter is that 1.0～3.0mm, wall thickness are magnesium or the magnesium alloy capillary of 0.1～0.5mm.
Wherein, the surfaces externally and internally light of the continuous directional solidification magnesium of the present invention's preparation or magnesium alloy pipe need not the processing such as machined, pickling, can be directly used in follow-up drawing processing, and through 1～15 passage, core drawing and empty drawing are arranged, short flow process shaping magnesium or magnesium alloy capillary; And, can implement 1～2 time as required process annealing in the drawing process, its annealing temperature is lower than the recrystallization temperature of magnesium or magnesium alloy pipe.
The invention has the advantages that:
1, preparing processing method with traditional capillary compares, the minor diameter thin wall tubing that the present invention adopts the continuous directional solidification technology to produce has continuous cylindrical crystalline texture, its cold working extending and deforming capacity significantly is better than various castings and Deformation structure's pipe, be conducive to improve pass reduction, reduce the processing passage.
2, tubing surfaces externally and internally light need not to carry out any surface treatment and just can directly carry out drawing processing, need not carry out intermediate annealing in the drawing process or only need a small amount of process annealing, be conducive to significantly shorten flow process, enhance productivity, improve lumber recovery, reduce production costs.
3, adopt the present invention can reduce even and economize except the intermediate annealing operation, can effectively reduce lubricant etc. in annealing rear surface oxidation, be conducive to obtain the capillary of excellent surface quality.
4, in capillary drawing process without operations such as cut-out, machined, pickling, can increase substantially the capillary working (machining) efficiency, can prevent effectively that metal fillings and other foreign matter from adhering to tube surfaces, guarantees inner surface quality.
The specific embodiment
Magnesium of the present invention or magnesium alloy short process making method capillaceous comprises the steps:
A, magnesium or magnesium alloy are melted under 700～850 ℃, adopt glass tube down-drawing on continuous directional solidification apparatus take the casting speed of 30～50mm/min prepare external diameter as 5.0～10.0mm, wall thickness as 1.0～2.0mm and surfaces externally and internally light, have continuous cylindrical crystalline texture, good magnesium or the magnesium alloy pipe of cold-forming property.
B, directly magnesium or magnesium alloy pipe are carried out multi-pass without any surface treatment and draw and dial processing, draw to dial and need not to carry out intermediate annealing in process or only need a small amount of process annealing, and drawing and dialling processing is first to carry out 1～15 passage to have core to draw to dial, carrying out 1～15 passage sky draws and dials again, have core to draw to dial and empty draw dial draw track lining time working modulus all between 1.2～1.5, finally obtaining external diameter is that 1.0～3.0mm, wall thickness are magnesium or the magnesium alloy capillary of 0.1～0.5mm.
Wherein, the surfaces externally and internally light of the continuous directional solidification magnesium of the present invention's preparation or magnesium alloy pipe need not the processing such as machined, pickling, can be directly used in follow-up drawing processing, and through 1～15 passage, core drawing and empty drawing are arranged, short flow process shaping magnesium or magnesium alloy capillary; And, can implement 1～2 time as required process annealing in the drawing process, its annealing temperature is lower than the recrystallization temperature of magnesium or magnesium alloy pipe.
Embodiment 1: the pure magnesium preparation method capillaceous who is of a size of f3.0 * 0.5mm
Adopting purity is that 99.99% magnesium melt under 850 ℃, adopts glass tube down-drawing to prepare with the casting speed of 30mm/min the pure magnesium tubing that the surfaces externally and internally of f10.0 * 2.0mm is bright, have continuous cylindrical crystalline texture on continuous directional solidification apparatus; The pure magnesium tubing of minor diameter thin wall of surface-brightening is directly carried out the belt carcass cephalic disc draw, become the tubing of f4.0 * 0.35mm through 10 passes of drawing, then be drawn into the pure magnesium capillary of f3.0 * 0.5mm through 3 passage skies.Wherein, the drawing passes lengthening coefficient is between 1.2～1.5, and lubricant is vegetable oil.
Embodiment 2: the pure magnesium preparation method capillaceous who is of a size of f2.0 * 0.35mm
Adopting purity is that 99.99% magnesium melt under 750 ℃, adopts glass tube down-drawing to prepare with the casting speed of 40mm/min the pure magnesium tubing that f7.5 * 1.0mm surfaces externally and internally is bright, have continuous cylindrical crystalline texture on continuous directional solidification apparatus; The pure magnesium tubing of minor diameter thin wall of surface-brightening is directly carried out the belt carcass cephalic disc draw, become the tubing of f4.0 * 0.35mm through 10 passes of drawing, then be drawn into the pure magnesium capillary of f2.0 * 0.35mm through 3 passage skies.Wherein, the drawing passes lengthening coefficient is between 1.2～1.5, and lubricant is vegetable oil.
Embodiment 3: the pure magnesium preparation method capillaceous who is of a size of f1.0 * 0.1mm
Adopting purity is that 99.99% magnesium melt under 700 ℃, adopts glass tube down-drawing to prepare with the casting speed of 50mm/min the pure magnesium tubing that the surfaces externally and internally of f5.0 * 1.0mm is bright, have continuous cylindrical crystalline texture on continuous directional solidification apparatus; The pure magnesium tubing of minor diameter thin wall of surface-brightening is directly carried out the belt carcass cephalic disc draw, become the tubing of f4.0 * 0.3mm through 3 passes of drawing, then be drawn into the pure magnesium capillary of f1.0 * 0.1mm through 10 passage core bars.Wherein, the drawing passes lengthening coefficient is between 1.2～1.5, and lubricant is vegetable oil.
The present invention describes by embodiment, but the present invention is not construed as limiting, with reference to description of the invention, other variations of the disclosed embodiments, easily expect as the professional person for this area, within such variation should belong to claim restricted portion of the present invention.
Claims (1)
1. a magnesium or magnesium alloy short process making method capillaceous, is characterized in that comprising the steps:
A, magnesium or magnesium alloy are melted under 700～850 ℃, adopt glass tube down-drawing on continuous directional solidification apparatus take the casting speed of 30～50mm/min prepare external diameter as 5.0～10.0mm, wall thickness as 1.0～2.0mm and surfaces externally and internally light, have continuous cylindrical crystalline texture, good magnesium or the magnesium alloy pipe of cold-forming property;
B, directly magnesium or magnesium alloy pipe are carried out multi-pass without any surface treatment and draw and dial processing, draw to dial and need not to carry out intermediate annealing in process or only need a small amount of process annealing, and drawing and dialling processing is first to carry out 1～15 passage to have core to draw to dial, carrying out 1～15 passage sky draws and dials again, have core to draw to dial and empty draw dial draw track lining time working modulus all between 1.2～1.5, finally obtaining external diameter is that 1.0～3.0mm, wall thickness are magnesium or the magnesium alloy capillary of 0.1～0.5mm.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331582A (en) * | 2013-07-04 | 2013-10-02 | 扬州大学 | Method for preparing metal thin-wall microtubes |
| CN103861887A (en) * | 2014-03-20 | 2014-06-18 | 北京科技大学 | Preparation method of high-performance copper/titanium bimetal capillary tube |
| CN103878203A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Preparation method of bimetal composite pipe |
| CN103878201A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Preparation method of high-performance copper/aluminum duplex metal capillary |
| CN103878202A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Method for preparing copper/aluminum bimetallic capillary |
| CN105107856A (en) * | 2015-08-25 | 2015-12-02 | 山东建筑大学 | Novel method for preparing high-strength nanocrystalline AZ31 magnesium alloy tube |
| CN106269939A (en) * | 2016-08-18 | 2017-01-04 | 亚太轻合金(南通)科技有限公司 | A kind of preparation method of aluminium alloy capillary tube |
| CN108262368A (en) * | 2017-08-21 | 2018-07-10 | 广东省材料与加工研究所 | A kind of preparation method of high-performance medical magnesium alloy thin-wall pipes |
| CN111571128A (en) * | 2020-05-07 | 2020-08-25 | 沪创医疗科技（上海）有限公司 | Preparation method of biodegradable superfine crystal magnesium alloy intravascular stent |
| CN112246898A (en) * | 2020-09-25 | 2021-01-22 | 北京工业大学 | Preparation method for Mg-Zn-Mn-Ca magnesium alloy micro-tube |
| CN113444888A (en) * | 2021-06-29 | 2021-09-28 | 重庆大学 | Method for purifying magnesium melt by adopting directional solidification |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003018225A1 (en) * | 2001-08-24 | 2003-03-06 | Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. | Method for producing elongate-shaped elements made of magnesium or magnesium alloys |
| CN1596319A (en) * | 2002-03-04 | 2005-03-16 | 住友电工钢铁电缆株式会社 | Manesium base alloy tube and method for manufacture thereof |
| CN101322985A (en) * | 2008-07-22 | 2008-12-17 | 西北有色金属研究院 | Warm state drawing method for processing medical magnesium alloy fine-radial thin-wall pipes |
| CN102489535A (en) * | 2011-11-29 | 2012-06-13 | 北京科技大学 | Method for preparing and processing cupronickel capillary with high efficiency |
-
2013
- 2013-03-05 CN CN201310068457.1A patent/CN103170516B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003018225A1 (en) * | 2001-08-24 | 2003-03-06 | Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. | Method for producing elongate-shaped elements made of magnesium or magnesium alloys |
| CN1596319A (en) * | 2002-03-04 | 2005-03-16 | 住友电工钢铁电缆株式会社 | Manesium base alloy tube and method for manufacture thereof |
| CN101322985A (en) * | 2008-07-22 | 2008-12-17 | 西北有色金属研究院 | Warm state drawing method for processing medical magnesium alloy fine-radial thin-wall pipes |
| CN102489535A (en) * | 2011-11-29 | 2012-06-13 | 北京科技大学 | Method for preparing and processing cupronickel capillary with high efficiency |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331582B (en) * | 2013-07-04 | 2015-11-25 | 扬州大学 | A kind of method preparing metal thin-wall microtubule |
| CN103331582A (en) * | 2013-07-04 | 2013-10-02 | 扬州大学 | Method for preparing metal thin-wall microtubes |
| CN103878202B (en) * | 2014-03-20 | 2016-08-31 | 北京科技大学 | A kind of preparation method of copper/Al bimetal capillary tube |
| CN103878201A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Preparation method of high-performance copper/aluminum duplex metal capillary |
| CN103878202A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Method for preparing copper/aluminum bimetallic capillary |
| CN103878203A (en) * | 2014-03-20 | 2014-06-25 | 北京科技大学 | Preparation method of bimetal composite pipe |
| CN103878203B (en) * | 2014-03-20 | 2016-06-08 | 北京科技大学 | The preparation method of a kind of composite bimetal pipe |
| CN103878201B (en) * | 2014-03-20 | 2016-06-08 | 北京科技大学 | The preparation method of a kind of high-performance copper/Al bimetal kapillary |
| CN103861887A (en) * | 2014-03-20 | 2014-06-18 | 北京科技大学 | Preparation method of high-performance copper/titanium bimetal capillary tube |
| CN105107856A (en) * | 2015-08-25 | 2015-12-02 | 山东建筑大学 | Novel method for preparing high-strength nanocrystalline AZ31 magnesium alloy tube |
| CN106269939A (en) * | 2016-08-18 | 2017-01-04 | 亚太轻合金(南通)科技有限公司 | A kind of preparation method of aluminium alloy capillary tube |
| CN108262368A (en) * | 2017-08-21 | 2018-07-10 | 广东省材料与加工研究所 | A kind of preparation method of high-performance medical magnesium alloy thin-wall pipes |
| CN111571128A (en) * | 2020-05-07 | 2020-08-25 | 沪创医疗科技（上海）有限公司 | Preparation method of biodegradable superfine crystal magnesium alloy intravascular stent |
| CN112246898A (en) * | 2020-09-25 | 2021-01-22 | 北京工业大学 | Preparation method for Mg-Zn-Mn-Ca magnesium alloy micro-tube |
| CN113444888A (en) * | 2021-06-29 | 2021-09-28 | 重庆大学 | Method for purifying magnesium melt by adopting directional solidification |
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