CN103170805A - Biomedical stainless steel processing technique and method of manufacturing bolt and precise axel steel thereof - Google Patents
Biomedical stainless steel processing technique and method of manufacturing bolt and precise axel steel thereof Download PDFInfo
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- CN103170805A CN103170805A CN2013100966417A CN201310096641A CN103170805A CN 103170805 A CN103170805 A CN 103170805A CN 2013100966417 A CN2013100966417 A CN 2013100966417A CN 201310096641 A CN201310096641 A CN 201310096641A CN 103170805 A CN103170805 A CN 103170805A
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Abstract
The invention provides a biomedical stainless steel processing technique. Stainless steel manufactured through the technique is high in quality, stable in performance and high in production efficiency when being used in subsequent medical parts. The invention further discloses a method of manufacturing a bolt and precise axel steel. The biomedical stainless steel processing technique comprises the following steps: (1) coping; (2) coating, namely, coating the stainless steel obtained in the step (1) with a coating agent under 90-95 DEG C, wherein the coating time is controlled within 12-18min, and the coating agent is composed of lime, oil and soap; (3) drying, wherein drying temperature is controlled within 100-110 DEG C; (4) drawing roughly; (5) annealing, namely, annealing the stainless steel of different diameters obtained in the step (4) in an annealing furnace under 700-780 DEG C, taking out the stainless steel from the annealing furnace, and putting the stainless steel in water in an environment protected by inert gas to cool the stainless steel; (6) testing; and (7) drying.
Description
Technical field
The present invention relates to a kind of stainless steel processing process, specifically be applied to the processing of medical stainless steel, the processing of screw and the processing of axle steel.
Background technology
Non-medical stainless steel is large to harm, is unsuitable for Long Term Contact, and especially the irritated crowd of commute, more dangerous; The problems referred to above have been alleviated in the generation of medical stainless steel greatly; But medical stainless steel, mostly continue to use traditional stainless manufacture craft at present; Because the instructions for use of medical stainless steel is higher, so there is following problem in traditional handicraft when the processing medical stainless steel:
1, bad mechanical property is unsuitable for the extensive medical stainless steel parts of producing fast;
2, precision is low, poor product quality; Do not have check technique strict early stage in traditional handicraft, meanwhile, wire drawing machine is when wire drawing, and often coarse due to stainless steel surfaces, take away a large amount of wire drawing powder, causes the wire drawing degradation of wire drawing machine, and the product quality of its output is variation;
3, stainless steel unstable properties, easily oxidation.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of medical stainless steel processing technology for above-mentioned deficiency of the prior art, be mainly with medical stainless steel by steel ingot, make the bar (cylindrical shape) of being convenient to machining; The medical stainless steel of this processes, product quality is high, stable performance, when being used for follow-up medical parts production, its production efficiency is high; The invention also discloses the method for utilizing this processing technology to produce screw and accurate axle steel.
The technical solution adopted for the present invention to solve the technical problems is: the medical stainless steel processing technology comprises the following steps:
(1) reconditioning is stopped except the defective on steel ingot;
(2) tunicle uses fruit glaze agent under the condition of 90～95 ℃, the stainless steel that obtains in step (1) to be carried out tunicle, and the tunicle time is controlled at 12～18min, and fruit glaze agent is comprised of lime, oil and soap;
(3) oven dry will be sent into oven for drying through the stainless steel that step (2) is processed, and bake out temperature is controlled at 100～110 ℃;
(4) rough, the stainless steel that step (3) is obtained is heated to 130 ℃, sends wire drawing machine to and carries out roughly, according to the setting of wire drawing machine, is made into the stainless steel of different-diameter;
(5) annealing is annealed the stainless steel of the different-diameter that obtains in step (4) in the annealing furnace of 700～780 ℃; Be 1～26.67min according to its annealing temperature retention time of difference of diameter; Stainless steel is by after taking out in annealing furnace, cooling in the environment with inert gas shielding is transferred entry;
(6) check, carry out overall inspection to the stainless steel that obtains through step (5);
(7) drying, the stainless steel after check is dried or is dried.
Be further: in above-mentioned steps (5), inert gas is nitrogen, and the content of nitrogen is 75%.
Be further: in above-mentioned steps (5), when obtaining stainless diameter in step (4) and be 1mm, its annealing temperature retention time is 1 minute, when diameter is 2mm, its annealing temperature retention time is 2 minutes, and when diameter was 15mm, its annealing temperature retention time was 8/0.3 minute.
Above-mentioned medical stainless steel processing technology, the medical stainless steel steel ingot is processed through after reconditioning, guaranteed product quality, meanwhile, stainless steel has carried out the tunicle processing before wire drawing, lubricated stainless steel surfaces, make when the wire drawing machine wire drawing, keep to greatest extent the amount of wire drawing powder in wire drawing machine, need not frequently add the wire drawing powder, wire drawing efficient is provided, has guaranteed that meanwhile the wire drawing steady quality is reliable; Above-mentioned medical stainless steel processing technology also at annealing stage, cools under the inert gas shielding condition to stainless steel, has avoided to greatest extent stainless oxidation, also makes the stainless steel quality of output higher, and stability is better.
The invention also discloses the method for utilizing above-mentioned medical stainless steel processing technology to produce screw (medical), after the step (7) of above-mentioned medical stainless steel processing technology, also comprise subsequent step:
(8) cold-heading is carried out cold-heading with cold headers to the stainless steel that obtains in step (7), forms two cylindrical preliminary shapes of different-diameter size;
(9) turning; With the large small cylinder turning of different-diameter that obtains in step (8); Wherein the big column diameter is made as 4mm, and the small column diameter is made as 2.5mm.
(10) tapping; Be the tapping of small column cylindrical.
Because the medical stainless steel through above-mentioned processes has good machining property, therefore only need simple cold-heading-turning and company can complete the production of screw when producing screw, greatly increased production efficiency; Certainly, this screw also has advantages of the resulting product of above-mentioned medical stainless steel processing technology; Concrete, refer to high stability and high-quality.
The invention also discloses the method for utilizing above-mentioned medical stainless steel processing technology to produce accurate axle steel (medical), after the step (7) of above-mentioned medical stainless steel processing technology, also comprise subsequent step:
(8) alignment cutting will cut off after the stainless steel alignment that obtain in step (7);
(9) stainless steel that obtains in step (8) is quenched between 1030～1080 ℃, the every increase of stainless diameter 1mm, its temperature retention time is corresponding extends 1 minute;
(10) chamfering is carried out flat head chamfering under the condition of guaranteeing the stainless steel linearity;
(11) polishing is with the stainless steel mill surface of grinding machine to obtaining in step (10);
(12) sorted and packaged is packed respectively according to the difference of stainless steel size.
The present invention compared with prior art has the following advantages:
1, medical stainless steel processing technology of the present invention, the medical stainless steel steel ingot is processed through after reconditioning, guaranteed product quality, meanwhile, stainless steel has carried out the tunicle processing before wire drawing, lubricated stainless steel surfaces, make when the wire drawing machine wire drawing, keep to greatest extent the amount of wire drawing powder in wire drawing machine, need not frequently add the wire drawing powder, wire drawing efficient is provided, has guaranteed that meanwhile the wire drawing steady quality is reliable; Medical stainless steel processing technology of the present invention also at annealing stage, cools under the inert gas shielding condition to stainless steel, has avoided to greatest extent stainless oxidation, also makes the stainless steel quality of output higher, and stability is better.
2, the present invention produces the method for screw, it has continued the processing process of medical stainless steel, directly entered the screw formative stage, because the medical stainless steel through above-mentioned processes has good machining property, therefore only need simple cold-heading-turning and company can complete the production of screw when producing screw, greatly increased production efficiency; This screw also have advantages of high stability and quality high.
The specific embodiment
Below in conjunction with embodiment, the specific embodiment of the invention is described:
A kind of medical stainless steel processing technology is disclosed in the present invention, the method for utilizing the method for this explained hereafter screw (medical) and utilizing the accurate axle steel of this explained hereafter (medical);
The medical stainless steel processing technology comprises the following steps:
(1) reconditioning is stopped except the defective on steel ingot; This defective mainly refers to rust, crack, burr etc.; These defectives need to be repaiied and remove; The stainless steel quality that so can guarantee final output is higher.
(2) tunicle uses fruit glaze agent under the condition of 90～95 ℃, the stainless steel that obtains in step (1) to be carried out tunicle, and the tunicle time is controlled at 12～18min, and fruit glaze agent is comprised of lime, oil and soap; Made stainless surface Paint Gloss by membrane process, in follow-up drawing process, can not take away the wire drawing powder, guaranteed the wire drawing quality; Yet traditional not by in the processing method of membrane process, stainless steel surfaces is coarse, when wire drawing, has taken away a large amount of wire drawing powder, has affected the wire drawing quality of wire drawing machine.
(3) oven dry will be sent into oven for drying through the stainless steel that step (2) is processed, and bake out temperature is controlled at 100～110 ℃; After oven dry, increased tunicle rear stainless steel surfaces by the hardness of rete;
(4) rough, the stainless steel that step (3) is obtained is heated to 130 ℃, sends wire drawing machine to and carries out roughly, according to the setting of wire drawing machine, is made into the stainless steel of different-diameter;
(5) annealing is annealed the stainless steel of the different-diameter that obtains in step (4) in the annealing furnace of 700～780 ℃; Be 1～26.67min according to its annealing temperature retention time of difference of diameter; Stainless steel is by after taking out in annealing furnace, cooling in the environment with inert gas shielding is transferred entry; Wherein when the stainless steel diameter was 1mm, the annealing temperature retention time was 1min, and when stainless diameter was 2mm, the time of annealing insulation was 2min, and when stainless diameter was 15mm, stainless annealing time was 8/0.3min, approximates 2.67min.
(6) check, carry out overall inspection to the stainless steel that obtains through step (5); Comprise the check of moisture, the check on surface and the check of size etc.;
(7) drying, the stainless steel after check is dried or is naturally dried.
In above-mentioned steps (5), inert gas is nitrogen, and the content of nitrogen is 75%.
In above-mentioned steps (5), when obtaining stainless diameter in step (4) and be 1mm, its annealing temperature retention time is 1 minute, and when diameter was 2mm, its annealing temperature retention time was 2 minutes, and when diameter was 15mm, its annealing temperature retention time was 8/0.3 minute.
The invention also discloses the method for utilizing above-mentioned medical stainless steel processing technology to produce screw (medical), after the step (7) of above-mentioned medical stainless steel processing technology, also comprise subsequent step:
(8) cold-heading is carried out cold-heading with cold headers to the stainless steel that obtains in step (7), forms two cylindrical preliminary shapes of different-diameter size; The first one-step forming of screw, because the machining property of the medical stainless steel of making early stage is good, therefore, can high efficiency moulding when making screw;
(9) turning; With the large small cylinder turning of different-diameter that obtains in step (8); Wherein the big column diameter is made as 4mm, and the small column diameter is made as 2.5mm.
(10) tapping; Be the tapping of small column cylindrical.
The invention also discloses the method for utilizing above-mentioned medical stainless steel processing technology to produce accurate axle steel (medical), after the step (7) of above-mentioned medical stainless steel processing technology, also comprise subsequent step:
(8) alignment cutting will cut off after the stainless steel alignment that obtain in step (7);
(9) stainless steel that obtains in step (8) is quenched between 1030～1080 ℃, the every increase of stainless diameter 1mm, its temperature retention time is corresponding extends 1 minute;
(10) chamfering is carried out flat head chamfering under the condition of guaranteeing the stainless steel linearity;
(11) polishing is with the stainless steel mill surface of grinding machine to obtaining in step (10);
(12) sorted and packaged is packed respectively according to the difference of stainless steel size.
The above has done detailed description to the preferred embodiment for the present invention, but the invention is not restricted to above-mentioned embodiment, in the ken that those of ordinary skills possess, can also make a variety of changes under the prerequisite that does not break away from aim of the present invention.
Do not break away from the spirit and scope of the present invention and can make many other changes and remodeling.Should be appreciated that to the invention is not restricted to specific embodiment, scope of the present invention is defined by the following claims.
Claims (5)
1. medical stainless steel processing technology comprises the following steps:
(1) reconditioning is stopped except the defective on steel ingot;
(2) tunicle uses fruit glaze agent under the condition of 90～95 ℃, the stainless steel that obtains in step (1) to be carried out tunicle, and the tunicle time is controlled at 12～18min, and fruit glaze agent is comprised of lime, oil and soap;
(3) oven dry will be sent into oven for drying through the stainless steel that step (2) is processed, and bake out temperature is controlled at 100～110 ℃;
(4) rough, the stainless steel that step (3) is obtained is heated to 130 ℃, sends wire drawing machine to and carries out roughly, according to the setting of wire drawing machine, is made into the stainless steel of different-diameter;
(5) annealing is annealed the stainless steel of the different-diameter that obtains in step (4) in the annealing furnace of 700～780 ℃; Be 1～26.67min according to its annealing temperature retention time of difference of diameter; Stainless steel is by after taking out in annealing furnace, cooling in the environment with inert gas shielding is transferred entry;
(6) check, carry out overall inspection to the stainless steel that obtains through step (5);
(7) drying, the stainless steel after check is dried or is dried.
2. medical stainless steel processing technology as claimed in claim 1, it is characterized in that: in step (5), inert gas is nitrogen, and the content of nitrogen is 75%.
3. medical stainless steel processing technology as claimed in claim 1 or 2, it is characterized in that: in step (5), when obtaining stainless diameter in step (4) and be 1mm, its annealing temperature retention time is 1 minute, when diameter is 2mm, its annealing temperature retention time is 2 minutes, and when diameter was 15mm, its annealing temperature retention time was 8/0.3 minute.
4. the method for utilizing the arbitrary described stainless steel processing process of claim 1-3 to produce screw is characterized in that: after step (7), also comprise subsequent step:
(8) cold-heading is carried out cold-heading with cold headers to the stainless steel that obtains in step (7), forms two cylindrical preliminary shapes of different-diameter size;
(9) turning; With the large small cylinder turning of different-diameter that obtains in step (8); Wherein the big column diameter is made as 4mm, and the small column diameter is made as 2.5mm.
(10) tapping; Be the tapping of small column cylindrical.
5. the method for utilizing the arbitrary described stainless steel processing process of claim 1-3 to produce accurate axle steel is characterized in that: after step (7), also comprise subsequent step:
(8) alignment cutting will cut off after the stainless steel alignment that obtain in step (7);
(9) stainless steel that obtains in step (8) is quenched between 1030～1080 ℃, the every increase of stainless diameter 1mm, its temperature retention time is corresponding extends 1 minute;
(10) chamfering is carried out flat head chamfering under the condition of guaranteeing the stainless steel linearity;
(11) polishing is with the stainless steel mill surface of grinding machine to obtaining in step (10);
(12) sorted and packaged is packed respectively according to the difference of stainless steel size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013100966417A CN103170805A (en) | 2013-03-22 | 2013-03-22 | Biomedical stainless steel processing technique and method of manufacturing bolt and precise axel steel thereof |
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| CN2013100966417A CN103170805A (en) | 2013-03-22 | 2013-03-22 | Biomedical stainless steel processing technique and method of manufacturing bolt and precise axel steel thereof |
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| CN103170805A true CN103170805A (en) | 2013-06-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109234507A (en) * | 2018-09-29 | 2019-01-18 | 瑞安市锦润不锈钢制品有限公司 | A kind of stainless steel products processing technology |
| CN111826577A (en) * | 2019-04-18 | 2020-10-27 | 江苏宏诚船舶科技有限公司 | Production process of stainless steel section with high corrosion performance |
Citations (5)
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| GB2124121A (en) * | 1982-06-18 | 1984-02-15 | Sumitomo Metal Ind | Dry type continuous wire drawing process and machine |
| CN101157172A (en) * | 2007-10-19 | 2008-04-09 | 宝鸡市英耐特医用钛有限公司 | Method of preparing medical high-precision titanium and titanium alloy rod bar |
| CN101429630A (en) * | 2007-06-12 | 2009-05-13 | 江阴康瑞不锈钢制品有限公司 | Novel austenite cold-heading stainless steel and its steel wire production method |
| CN102162066A (en) * | 2011-03-28 | 2011-08-24 | 徐英忱 | Medical martensitic stainless steel material and preparation method thereof |
| CN102581558A (en) * | 2012-02-24 | 2012-07-18 | 贵州精立航太科技有限公司 | Machining process of long and thin screw |
-
2013
- 2013-03-22 CN CN2013100966417A patent/CN103170805A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2124121A (en) * | 1982-06-18 | 1984-02-15 | Sumitomo Metal Ind | Dry type continuous wire drawing process and machine |
| CN101429630A (en) * | 2007-06-12 | 2009-05-13 | 江阴康瑞不锈钢制品有限公司 | Novel austenite cold-heading stainless steel and its steel wire production method |
| CN101157172A (en) * | 2007-10-19 | 2008-04-09 | 宝鸡市英耐特医用钛有限公司 | Method of preparing medical high-precision titanium and titanium alloy rod bar |
| CN102162066A (en) * | 2011-03-28 | 2011-08-24 | 徐英忱 | Medical martensitic stainless steel material and preparation method thereof |
| CN102581558A (en) * | 2012-02-24 | 2012-07-18 | 贵州精立航太科技有限公司 | Machining process of long and thin screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109234507A (en) * | 2018-09-29 | 2019-01-18 | 瑞安市锦润不锈钢制品有限公司 | A kind of stainless steel products processing technology |
| CN111826577A (en) * | 2019-04-18 | 2020-10-27 | 江苏宏诚船舶科技有限公司 | Production process of stainless steel section with high corrosion performance |
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Application publication date: 20130626 |