CN101972783B - Manufacturing method of high-strength austenite stainless spring steel wire - Google Patents
Manufacturing method of high-strength austenite stainless spring steel wire Download PDFInfo
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- CN101972783B CN101972783B CN2010105121663A CN201010512166A CN101972783B CN 101972783 B CN101972783 B CN 101972783B CN 2010105121663 A CN2010105121663 A CN 2010105121663A CN 201010512166 A CN201010512166 A CN 201010512166A CN 101972783 B CN101972783 B CN 101972783B
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Abstract
The invention relates to a manufacturing method of a high-strength austenite stainless spring steel wire, which is characterized by comprising the following steps of: specifically arranging a cooling coiling block after a steel wire surface pretreatment process is ended but before a straight line wire drawing machine starts continuously drawing; and after the steel wire the surface of which is pretreated is wound and cooled on the cooling coiling block, carrying out the continuous drawing by the straight line wire drawing machine. Moreover, the first die block compression ratio is increased to 35-40 percent, whereas the total compression ratio remains constant when the straight line wire drawing machine carries out the continuous drawing. The invention can effectively improve the strength of the austenite stainless spring steel wire by about 90MPa, thereby stably obtaining the high-strength austenite stainless spring steel wire.
Description
(1) technical field
The present invention relates to a kind of preparation method of spring steel wire, be specifically related to a kind of preparation method of austenite stainless spring steel wire.Belong to the stainless steel products technical field.
(2) background technology
The austenite stainless spring steel wire is the important kind of rustproof spring steel silk, and is of many uses.
Intensity is one of main quality index of rustproof spring steel silk.According to the standard that generally adopts, the intensity rank of austenite stainless spring steel wire mainly contains low intensive relatively A group rank and high-intensity relatively B group rank.In order to save material, wherein use wider with high-intensity B group rank again.
The conventional preparation method of austenite stainless spring steel wire is: the online preliminary treatment of Steel Wire Surface, straight drawing machine continuous drawing, the take-up of finished product steel wire.
Wherein:
After surperficial online preliminary treatment, steel wire gets into the first road diaphragm capsule when carrying out drawing, and temperature is generally about 65 ℃; During the straight drawing machine continuous drawing, the compression ratio in first road is generally below 30%.Straight drawing machine is made up of the diaphragm capsule of continuous multiple tracks and the reel of multiple tracks.The periphery of diaphragm capsule and the inwall of reel all have the cooling water of circulation, to cool off the heat that steel wire produces because of drawing compression.
In fact,, make high-intensity B group rank austenite stainless spring steel wire through above-mentioned conventional method, exist intensity not up to standard, promptly do not reach the situation of standard min.
Especially under the hot weather in summer (7,8, September),, be easy to occur the situation that intensity does not reach standard min through above-mentioned conventional method: as, the austenite stainless spring steel wire of 0.80mm, other low intensity limit of B group level is 1850MPa; Through above-mentioned conventional method, intensity often has only about 1815MPa.A lot of scale enterprises, at summer high temperature weather, the situation of the B group rank austenite stainless spring steel wire that all occurs limiting the production, stop production because of intensity is not up to standard.
In order to overcome the difficulty that this exists always, the method for taking at present mainly contains two types:
One, adopt high-end raw material to produce: such as the material of Japanese Nippon Steel.Smelt with rolling level higherly because of it,, obtain qualified, high-intensity B through above-mentioned conventional method and organize rank austenite stainless spring steel wire so can guarantee under summer high temperature weather.But its cost of raw material is higher.
Two, reduce the temperature of working environment
The manufacturer of a lot of high strength austenite stainless spring steel wires because of the reason of process flow, often has operating temperature at 1050 ℃ of left and right sides heat-treatment furnaces, and with the production ride of rustproof spring steel silk in same workshop, the order discharging.Like this, that operation connects is compact, the logistics circulation is convenient, and promptly the production ride that directly forwards the rustproof spring steel silk to of the steel wire after the heat treatment is produced.But the shortcoming that causes is, because the heat that the high-temperature heat treatment stove distributes in the workshop, adds the heat that the production ride of rustproof spring steel silk produces, and causes the temperature in the workshop higher always.Especially summer is more easily up to more than 43 ℃.For this reason, take:
(1) independent workshop
Employing is moved into independent workshop with the production ride of rustproof spring steel silk and is produced.But effect does not have basically.Through the test comparison of system, the intensity of austenite stainless spring steel wire has only improved 0.3%, and promptly intensity improves not above 10MPa;
(2) air-conditioning cooling
With the workshop of the rustproof spring steel silk refrigeration that installs an air-conditioner.Effect same is limited, and intensity can not be up to standard;
(3) cooling water is on the rocks
The cooling water of diaphragm capsule and reel is lowered the temperature through on the rocks.But intensity improves not above 20MPa.
That is to say, adopt conventional raw materials, through said method, though input and consumption are very big, effect is also bad.Therefore, some enterprise just take outside summer the time produce more, stock buildup, or deal with the mode that the client consults to reduce requirement of strength.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of conventional raw materials that adopts also can obtain preparation method qualified, high-intensity B group rank austenite stainless spring steel wire.
The objective of the invention is to realize like this: a kind of preparation method of high strength austenite stainless spring steel wire; Said method is after the Steel Wire Surface pretreatment process, gets into before the straight drawing machine continuous drawing; An ad hoc cooling reel, the steel wire after the surface preparation twine on this cooling reel, fully after the cooling, when getting into straight drawing machine again and carrying out continuous drawing; Wire temperature is (summer is below 35 ℃) under the workshop condition temperature; And on the lower basis of wire temperature, according to the sclerosis characteristics of austenitic stainless steel, the first road diaphragm capsule compression ratio during with the straight drawing machine continuous drawing is increased to 35%～40%, and total draught remains unchanged.
The present invention has changed the theory that traditional reduction environment temperature improves the austenite stainless spring steel wire, and the temperature during from reduction steel wire drawing deformation is set about, and stablizes, improves effectively its intensity.
Principle:
Ad hoc cooling reel: cooling reel inwall leads to recirculated cooling water, can reduce the temperature of steel wire, makes wire temperature under the workshop condition temperature; And: employing be steel wire and cooling mandrel surface direct contact type cooling; Heat transfer efficiency is high, and energy consumption is low, economy;
The first road diaphragm capsule compression ratio of amplifying: because wire temperature is under the workshop condition temperature before getting into the straight drawing machine continuous drawing; Possesses lower temperature during the steel wire distortion; Therefore can realize the increasing of first road compression ratio, caloric value that can extra increase steel wire.And the deflection of the austenitic stainless steel of increasing lower temperature can effectively increase the phase transformation of its DEFORMATION INDUCED, improves the intensity of steel wire.
Through above-mentioned measure, compare aforementioned conventional preparation method, the inventive method can improve the about 90MPa of intensity of austenite stainless spring steel wire effectively, thus the stable high strength austenite stainless spring steel wire that obtains.
The invention has the beneficial effects as follows:
1, utilizes conventional raw materials, realize the steady production of high strength austenite stainless spring steel wire.Need not high-grade raw material, practice thrift a large amount of costs of raw material;
2, effectively improved the intensity of austenite stainless spring steel wire, made its steady production constantly;
3, need not bigger fixed assets inputs such as factory building;
4, need not the energy consumption input that air-conditioning, ice cube etc. continue;
5, operation is convenient, only before former straight drawing machine, increases ad hoc reel, during production steel wire is twined in the above to get final product, and does not almost increase extra operation.
(4) description of drawings
Fig. 1 is the technological process of production figure of the preparation method of high strength austenite stainless spring steel wire of the present invention.
Reference numeral among the figure:
Cooling reel 1
Finished product steel wire admission machine 3
Steel wire 4 after the surface preparation
Steel wire direct of travel A.
(5) specific embodiment
Referring to Fig. 1, Fig. 1 is the technological process of production figure of the preparation method of high strength austenite stainless spring steel wire of the present invention.Can find out by Fig. 1; The preparation method of high strength austenite stainless spring steel wire of the present invention, said method are after the Steel Wire Surface pretreatment process, get into before the straight drawing machine continuous drawing an ad hoc cooling reel; The logical recirculated cooling water of cooling reel inwall; Steel wire after the surface preparation twines on this road reel, fully after the cooling, when getting into straight drawing machine again and carrying out continuous drawing, wire temperature is under the workshop condition temperature; And the first road diaphragm capsule compression ratio during with the straight drawing machine continuous drawing is increased to 35%～38% or 38%～40%, and total draught remains unchanged.
Ad hoc cooling reel, its wall thickness are 1/2 of conventional reel, realize better cooling effect through the cooling water of its inwall Rapid Cycle.
Above-mentioned cooling reel also can come to substitute: adopt air-conditioning branch to blow a cold wind over or cooling bath etc. in the following manner.
Claims (2)
1. the preparation method of a high strength austenite stainless spring steel wire; It is characterized in that: said method is after the Steel Wire Surface pretreatment process, gets into before the straight drawing machine continuous drawing; An ad hoc cooling reel; Steel wire after the surface preparation gets into straight drawing machine again and carries out continuous drawing after on this cooling reel, twining, cool off; And the first road diaphragm capsule compression ratio during with the straight drawing machine continuous drawing is increased to 35%～40%, and total draught remains unchanged.
2. the preparation method of a kind of high strength austenite stainless spring steel wire according to claim 1 is characterized in that: the said first road diaphragm capsule compression ratio is 35%～38% or 38%～40%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105121663A CN101972783B (en) | 2010-10-15 | 2010-10-15 | Manufacturing method of high-strength austenite stainless spring steel wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105121663A CN101972783B (en) | 2010-10-15 | 2010-10-15 | Manufacturing method of high-strength austenite stainless spring steel wire |
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| CN101972783A CN101972783A (en) | 2011-02-16 |
| CN101972783B true CN101972783B (en) | 2012-04-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104741399A (en) * | 2015-04-07 | 2015-07-01 | 奥盛新材料股份有限公司 | Prestress steel strand manufacturing tool and steel strand manufacturing method |
| CN106166570B (en) * | 2016-08-26 | 2017-11-21 | 无锡兴澄特种材料有限公司 | Bright face stainless steel spring line processing method |
| CN112474866B (en) * | 2020-10-30 | 2022-07-01 | 肇庆市永业金属实业有限公司 | Method for processing spring steel wire capable of resisting metal fatigue |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS54146213A (en) * | 1978-05-03 | 1979-11-15 | Union Carbide Corp | Production of strength wire |
| US4204885A (en) * | 1979-03-21 | 1980-05-27 | Union Carbide Corporation | Method for providing strong wire |
| DE19708352A1 (en) * | 1997-03-01 | 1997-10-16 | Berns Hans Prof Dr Ing | Nitrogen-containing stainless steel rope wire |
| CN1624183A (en) * | 2004-12-10 | 2005-06-08 | 江阴中恒科技有限公司 | High performance stainless steel spring wire and its preparation method |
| CN101624686A (en) * | 2008-07-12 | 2010-01-13 | 宋卫国 | Method for preparing high-performance stainless steel spring steel wire |
| CN101724792B (en) * | 2008-10-27 | 2012-12-05 | 朱卫 | Austenite stainless steel and steel wire manufacturing method |
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Address after: 214434 Chengjiang Middle Road, Jiangsu, China, No. 155, No. Patentee after: FASTEN GROUP CO., LTD. Address before: 214434 Chengjiang Middle Road, Jiangsu, China, No. 155, No. Patentee before: Fasten Group Co., Ltd. |