CN100516306C - Method for increasing medical embedded stainless steel tube inner surface quality - Google Patents
Method for increasing medical embedded stainless steel tube inner surface quality Download PDFInfo
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- CN100516306C CN100516306C CN 200710045236 CN200710045236A CN100516306C CN 100516306 C CN100516306 C CN 100516306C CN 200710045236 CN200710045236 CN 200710045236 CN 200710045236 A CN200710045236 A CN 200710045236A CN 100516306 C CN100516306 C CN 100516306C
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- stainless steel
- steel tube
- surface quality
- medical embedded
- tube inner
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Abstract
The process of treating medical implanted stainless steel pipe in high inner surface quality includes soaking medical implanted stainless steel pipe in mixed treating fluid comprising stainless steel pickling solution and nanometer alumina particle inside a treating trough, heating the treating fluid to 50-100 deg.c, pressing the treating fluid into the pipe and circulating with a water pump, treating for 0.5-60 min, and flushing the taken out pipe with flowing water. Compared with available technology, the present invention has the advantages of high polishing effect, excellent anticorrosive performance, wide application range and other features.
Description
Technical field
The present invention relates to the method that material field surface quality is improved, specifically is a kind of method that improves medical embedded stainless steel tube inner surface quality.
Background technology
The stainless steel metal material of broad variety and specification is used widely in that medical field is existing, just adopts meticulous stainless steel pipe as the intravascular stent of interventional therapy, forms through operation manufacturings such as laser cutting and electrochemical etchings then.But the stainless steel pipe of general technology production at present exists number of drawbacks or deficiencies such as dimensional precision, surface quality, especially there are problems such as low-level oxidation, little burr, processing trace or wrinkle Zhe easily in internal surface, and more difficult processing, thereby them have been restricted in the use that gets involved many implantation medical fields such as medical treatment, therefore, the quality that improves medical embedded stainless steel tube surface quality, especially internal surface has great importance.
The surface quality of general stainless material can be improved by methods such as various cleanings, chemical pickling, mechanical grinding, machinery or electrochemical etchings, but it is then more difficult relatively for the internal surface of stainless steel pipe,, then difficult for medical embedded stainless steel tube to the technological method of the quality improvement of its internal surface then because of its small-diameter sized normally.For example, patent " surface treatment method for stainless steel pipe " (number of patent application 200510114806.4, publication number CN1967039) adopt the mechanical polishing pre-treatment to make original surface become smooth smooth, adopt Shot Blasting to make the surface become inferior light again, process oven dry and high temperature ooze the wax processing makes the surface more corrosion-resistant, thereby planeness, aesthetic measure, the antiseptic property on pipeline member surface all are significantly increased, reach corrosion resistant again effect attractive in appearance.But such method can not be handled the internal surface of tubing, is not suitable for the internal surface of the medical embedded stainless steel tube with small-bore feature.
Summary of the invention
Purpose of the present invention is exactly the method for the raising medical embedded stainless steel tube inner surface quality that a kind of polishing effect is good, corrosion resistance is good that provides in order to overcome the defective that above-mentioned technology exists.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of method that improves medical embedded stainless steel tube inner surface quality; it is characterized in that; this method is to obtain in the treatment solution immersion treatment trough being mixed by acid washing liquid for stainless steel and nano alumina particles; medical embedded stainless steel tube is put into treatment trough, and be heated to 50 ℃～100 ℃, adopt water pump that treatment solution is pressed in the tubing; and make it to circulate; treatment time is 0.5～60 minute, after the taking-up, rinses well with flowing water and to get final product.
Described treatment solution is after adding the alumina particle that volume percent is 1%～20% nano-scale by acid washing liquid for stainless steel, mixes the muddy suspension that obtains as rumbling compound.
Described acid washing liquid for stainless steel is that hydrochloric acid, nitric acid or sulfuric acid are according to about 1: 10 ratio and the mixture of water.
Compare with conventional art, the present invention is a kind of method of Combined Processing, in stainless steel pipe, improve processing by adopting the mobile treatment solution to carry out surface quality, owing to not only contain common acid washing liquid for stainless steel in the treatment solution, also added the nano aluminium oxide rumbling compound of some amount, flowing fluid not only has the effect of chemical pickling during processing, more drive the polished finish that rumbling compound has carried out the stainless steel internal surface, therefore, treating processes is carried out pickling and polishing simultaneously, makes the stainless steel internal surface reach better quality.Therefore, compounding method of the present invention, concerning medical embedded stainless steel tube, although its diameter is less, but, can effectively dispel internal surface oxidation, burr, cut and other defect because the induced effect of water pump still can obtain the ideal treatment effect, improve the inner surface quality of medical embedded stainless steel tube greatly, make it to reach very high surfaceness, purity etc.
Oxidation or other impurity of the stainless steel tube inner surface that employing the present invention handled can be dispeled, and polishing effect is good, thereby can obtain the effect of minute surface, and has good corrosion resistance.Simultaneously, can come the degree of depth of reconciliation statement mirror polish, roughness etc., obtain different effects, satisfy multiple service requirements by controlling parameters such as the temperature that heats, the time of processing.Technical solution of the present invention all has good effect to the stainless steel pipe (as 304,316 series) of the various trades mark.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
External diameter 1.575mm, wall thickness 0.127mm, an one-tenth brand are the medical embedded stainless steel tube (intravascular stent tubing) of 316L, the process steps of processing:
(1) homemade treatment solution is immersed in the treatment trough.Treatment solution is to be that 1% nano alumina particles mixes and obtains by common acid washing liquid for stainless steel and volume percent.
(2) this tubing is put into treatment trough, and be heated to 50 ℃.
(3) adopt water pump that treatment solution is pressed in the tubing, and make it circulation, the treatment time is 0.5 minute.
(4) after the taking-up, rinse well with flowing water.
Through the internal surface of pipe light that above step obtains, surfaceness is less than 5um, and the about 1um of polishing attenuate is substantially near mirror effect.
Embodiment 2
External diameter 1.575mm, wall thickness 0.127mm, an one-tenth brand are the medical embedded stainless steel tube (intravascular stent tubing) of 316L, the process steps of processing:
(1) homemade treatment solution is immersed in the treatment trough.Treatment solution is to be that 10% nano alumina particles mixes and obtains by common acid washing liquid for stainless steel and volume percent.
(2) this tubing is put into treatment trough, and be heated to 80 ℃.
(3) adopt water pump that treatment solution is pressed in the tubing, and make it circulation, the treatment time is 30 minutes.
(4) after the taking-up, rinse well with flowing water.
Very bright through the internal surface of pipe that above step obtains, surfaceness is less than 0.5um, and the about 10um of polishing attenuate reaches intact mirror effect.
Embodiment 3
External diameter 1.575mm, wall thickness 0.127mm, an one-tenth brand are the medical embedded stainless steel tube (intravascular stent tubing) of 316L, the process steps of processing:
(1) homemade treatment solution is immersed in the treatment trough.Treatment solution is to be that 20% nano alumina particles mixes and obtains by common acid washing liquid for stainless steel and volume percent.
(2) this tubing is put into treatment trough, and be heated to 100 ℃.
(3) adopt water pump that treatment solution is pressed in the tubing, and make it circulation, the treatment time is 60 minutes.
(4) after the taking-up, rinse well with flowing water.
Very bright through the internal surface of pipe that above step obtains, surfaceness is less than 0.2um, and the about 50um of polishing attenuate reaches intact mirror effect.
Claims (3)
1, a kind of method that improves medical embedded stainless steel tube inner surface quality; it is characterized in that; this method is to obtain in the treatment solution immersion treatment trough being mixed by acid washing liquid for stainless steel and nano alumina particles; medical embedded stainless steel tube is put into treatment trough, and be heated to 50 ℃～100 ℃, adopt water pump that treatment solution is pressed in the tubing; and make it to circulate; treatment time is 0.5～60 minute, after the taking-up, rinses well with flowing water and to get final product.
2, a kind of method that improves medical embedded stainless steel tube inner surface quality according to claim 1, it is characterized in that, described treatment solution is after adding the alumina particle that volume percent is 1%～20% nano-scale by acid washing liquid for stainless steel, mixes the muddy suspension that obtains as rumbling compound.
3, a kind of method that improves medical embedded stainless steel tube inner surface quality according to claim 1 is characterized in that, described acid washing liquid for stainless steel is that hydrochloric acid, nitric acid or sulfuric acid are according to 1: 10 the ratio and the mixture of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710045236 CN100516306C (en) | 2007-08-24 | 2007-08-24 | Method for increasing medical embedded stainless steel tube inner surface quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710045236 CN100516306C (en) | 2007-08-24 | 2007-08-24 | Method for increasing medical embedded stainless steel tube inner surface quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101148766A CN101148766A (en) | 2008-03-26 |
| CN100516306C true CN100516306C (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710045236 Expired - Fee Related CN100516306C (en) | 2007-08-24 | 2007-08-24 | Method for increasing medical embedded stainless steel tube inner surface quality |
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| CN (1) | CN100516306C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110181152A (en) * | 2019-06-25 | 2019-08-30 | 张家港市鸿盛精密制管有限公司 | A kind of process improving furniture pipe workpiece quality |
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- 2007-08-24 CN CN 200710045236 patent/CN100516306C/en not_active Expired - Fee Related
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| CN101148766A (en) | 2008-03-26 |
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Owner name: CHANGSHU MICRO TUBE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI ORIGIN MATERIAL AND MEDICAL TECHNOLOGY CO., LTD. Effective date: 20100623 |
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Effective date of registration: 20100623 Address after: 215500, No. 2, Haicheng Road, Changshu Economic Development Zone, Jiangsu, 11 Patentee after: CHANGSHU MICROTUBE TECHNOLOGY CO., LTD. Address before: 200240 No. 555, Dongchuan Road, Minhang District, Shanghai, No. 5048, building B Patentee before: Shanghai Aoruiji Medical Technology Co., Ltd. |
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Granted publication date: 20090722 Termination date: 20130824 |