CN101186005A - Processing technique of 9Cr18 stainless steel capable of being improved to G3 level - Google Patents
Processing technique of 9Cr18 stainless steel capable of being improved to G3 level Download PDFInfo
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- CN101186005A CN101186005A CNA2007101931246A CN200710193124A CN101186005A CN 101186005 A CN101186005 A CN 101186005A CN A2007101931246 A CNA2007101931246 A CN A2007101931246A CN 200710193124 A CN200710193124 A CN 200710193124A CN 101186005 A CN101186005 A CN 101186005A
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Abstract
The invention relates to a 9Cr18 stainless steel ball processing technique which can be raised to G3 grade. The processing technique sequentially includes raw material inspection, ball-forging, stress-relief and anneal, hot-acid pickling, polishing, quenching plus cold treatment plus backfire, hard milling, a first-time stabilizing treatment, fine milling, a second-time stabilizing treatment, fine grinding, washing, fine appearance-forming and lubricating and packing. On a basis of making a full use of the existing steel ball processing technology, machine-tool equipments and testing equipments, the technique of the invention adopts a reinforced steel ball manufacturing equipment, industrial preparations, and a novel abrasive to optimize various machining process parameters in the steel ball processing technique and to strengthen a process quality testing and has a proper washing, packing and conserving proposals, etc. process technology. The invention can raise the precision grade of the stainless steel ball to G3 grade and solves the processing technology, testing control and finished-product washing of the 9Cr18 stainless steel ball, and then a batch manufacture is realized finally.
Description
Technical field
The invention belongs to the machining technique field, specially refer to a kind of 9Cr18 stainless steel processing technology for steel ball of the G3 of bringing up to level.
Background technology
Steel ball plays carrying and transfer charge at ball bearing as rolling element, and the compression of bearing on the unit are is very big, and stressed frequency is also very high, very easily produces fatigue rupture; Simultaneously vibration or noise are being had in the bearing of requirement, the precision of steel ball is to bearing vibration or influence of noise maximum.
All kinds of 9Cr18 stainless steel bearings and steel ball have been widely used in aspects such as Aeronautics and Astronautics, special dimension, and 9Cr18 stainless steel bearing and steel ball have demand widely.High accuracy 9Cr18 stainless steel steel ball has only seldom manufacturer production at home, does not still have the stable producer that reaches the G3 level and produce.This is except the unworkability of 9Cr18 stainless steel material, and the specification requirement and the quality certification system of the strictness of G3 level steel ball also are important factors.
Because bearing steel GCr15 material behavior can't satisfy instructions for uses such as Aeronautics and Astronautics, special dimension.The research of existing processing technology is simultaneously mainly carried out at grinding bearing steel GCr15.For relatively soft slightly, the sticking 9Cr18 stainless steel material of material, processing technology requires further improvement.
Summary of the invention
At above-mentioned existing problems, the present invention proposes a kind of 9Cr18 stainless steel processing technology for steel ball of the G3 of bringing up to level, the accuracy class that this processing technology can improve the stainless steel steel ball reaches the G3 level, solved 9Cr18 stainless steel steel ball process technology, detected control, finished product cleaning method, the final realization produced in batches.
For achieving the above object, the present invention has adopted following technical scheme:
The 9Cr18 stainless steel processing technology for steel ball of the described G3 of bringing up to level comprises the inspection of raw and process materials → rammer ball → stress relief annealing → hot acid to be washed → photosphere → quenching+cold treatment+tempering → hard grind → once stable processing → correct grinding → stable processing → lappingout of secondary → cleaning → microscopical appearance → oiling packaging process, and each operation division is as follows:
I, the inspection of raw and process materials
Carry out the inspection of raw and process materials according to 9Cr18 stainless steel material national standard and the special-purpose 9Cr18 stainless steel material of special dimension national standard earlier;
II, rammer ball
On the high speed ball cold header, adopt corresponding specification steel ball cold heading die tool, knife plate rammer ball, rammer ball jig frequency 150～250 times/point, maximum cold-heading steel ball size Φ 7.5～10mm;
III, stress relief annealing
Stress relief annealing on cabinet-type electric furnace H-45,600～650 ℃ of annealing temperatures, annealing time 4～6 hours;
IV, hot acid are washed
I, acid solution composition are by volumetric ratio: HCL50%, H
2O50%;
Ii, pickler: descaling bath, electric furnace;
Iii, pickling temperature: 60 ± 5 ℃; The pickling time: 10～30 minutes;
V, photosphere
Photosphere on ball grinder, pressure 2.65～2.94MPa, motor speed are controlled at 955～1480 rev/mins, ball load 22～110kg;
VI, quenching+cold treatment+tempering
I, quenching apparatus are vacuum drying oven; 1090 ℃ of hardening heats;
Ii, cold treatment temperature-75～-80 ℃;
150～160 ℃ of iii, temperatures;
VII, hard grind
Hard grind on steel ball lapping machine, pressure 1～3MPa, ball load 15～20kg, abrasive material adopts the W60 alumina powder, and grinding agent adopts machine oil+a small amount of additive;
VIII, once stable processing
Stablize 130～140 ℃ of treatment temperatures;
IX, correct grinding
On steel ball lapping machine, finish grind, pressure 1～3MPa, ball load 15～20kg, abrasive material adopts the W40 alumina powder, and grinding agent adopts machine oil+a small amount of additive;
X, the stable processing of secondary
Stablize 130～140 ℃ of treatment temperatures;
XI, lappingout
Lappingout on steel ball lapping machine, lappingout pressure 3MPa, abrasive sheet rotating speed are controlled at 15～30 rev/mins, and abrasive material adopts 350 order chromium oxide micro mist+super hard abrasives, and grinding agent adopts machine oil+a small amount of additive;
XII, cleaning
Cleaning agent: tasteless kerosene or white gas;
XIII, microscopical appearance
In 14～90 times of binocular body formula microscopic examination presentation qualities and examination;
XIV, oiling packing
Oiling packing on heat-sealing machine.
Because adopt aforesaid technical scheme, the present invention has following superiority:
Make full use of under the prerequisite of existing steel ball process technology condition and lathe tooling device and checkout equipment, in reality processing, take to strengthen steel ball production equipment and frock preparation, adopt the new type abrasive grinding agent, optimize every working process parameter in the steel ball process, the intensifies process quality testing, the technologies such as embodiment of reasonably cleaning, packing, preserving.
The specific embodiment
As follows as certain high-precision bearing with Φ 3.175 G3 level 9Cr18 stainless steel processing technology for steel ball:
I, elder generation carry out the inspection of raw and process materials according to 9Cr18 stainless steel material national standard and the special-purpose 9Cr18 stainless steel material of special dimension national standard.
II, on the high speed ball cold header, adopt corresponding specification steel ball cold heading die tool, knife plate rammer ball, rammer ball jig frequency 250 times/point.
III, on cabinet-type electric furnace H-45 stress relief annealing, 600～650 ℃ of annealing temperatures, annealing time 4～6 hours.
IV, hot acid are washed
I, acid solution composition are by volumetric ratio: HCL50%, H
2O50%;
Ii, pickler: descaling bath, electric furnace;
Iii, pickling temperature: 60 ± 5 ℃; The pickling time: 10～30 minutes.
V, on ball grinder photosphere, pressure 2.65MPa, motor speed are controlled at 955 rev/mins, ball load 22kg.
VI, quenching+cold treatment+tempering
I, quenching apparatus are vacuum drying oven; 1090 ℃ of hardening heats;
Ii, cold treatment temperature-75～-80 ℃;
150～160 ℃ of iii, temperatures.
VII, hard grind on steel ball lapping machine, pressure 3MPa, ball load 20kg, abrasive material adopts the W60 alumina powder, and grinding agent adopts machine oil+a small amount of additive.
VIII, once stablize 130～140 ℃ of treatment temperatures.
IX, on steel ball lapping machine, finish grind, pressure 1MPa, ball load 20kg, abrasive material adopts the W40 alumina powder, and grinding agent adopts machine oil+a small amount of additive.
X, secondary are stablized 130～140 ℃ of treatment temperatures.
XI, on steel ball lapping machine lappingout, lappingout pressure 3MPa, abrasive sheet rotating speed are controlled at 15～30 rev/mins, abrasive material adopts 350 order chromium oxide micro mist+super hard abrasives, grinding agent adopts machine oil+a small amount of additive.
XII, use tasteless kerosene or white gas clean.
XIII, 14～90 times of binocular body formula microscopic examination presentation qualities and check and accept.
XIV, on heat-sealing machine oiling packing.
Claims (1)
1. the 9Cr18 stainless steel processing technology for steel ball that can bring up to the G3 level, it is characterized in that: this technology comprises the inspection of raw and process materials → rammer ball → stress relief annealing → hot acid washes → photosphere → quenching+cold treatment+tempering → hard grind → once stable processing → correct grinding → stable processing → lappingout of secondary → cleaning → microscopical appearance → oiling packaging process, each operation division is as follows:
I, the inspection of raw and process materials
Carry out the inspection of raw and process materials according to 9Cr18 stainless steel material national standard and the special-purpose 9Cr18 stainless steel material of special dimension national standard earlier;
II, rammer ball
On the high speed ball cold header, adopt corresponding specification steel ball cold heading die tool, knife plate rammer ball, rammer ball jig frequency 150～250 times/point, maximum cold-heading steel ball size Φ 7.5～10mm;
III, stress relief annealing
Stress relief annealing on cabinet-type electric furnace H-45,600～650 ℃ of annealing temperatures, annealing time 4～6 hours;
IV, hot acid are washed
I, acid solution composition are by volumetric ratio: HCL50%, H
2O50%;
Ii, pickler: descaling bath, electric furnace;
Iii, pickling temperature: 60 ± 5 ℃; The pickling time: 10～30 minutes;
V, photosphere
Photosphere on ball grinder, pressure 2.65～2.94MPa, motor speed are controlled at 955～1480 rev/mins, ball load 22～110kg;
VI, quenching+cold treatment+tempering
I, quenching apparatus are vacuum drying oven; 1090 ℃ of hardening heats;
Ii, cold treatment temperature-75～-80 ℃;
150～160 ℃ of iii, temperatures;
VII, hard grind
Hard grind on steel ball lapping machine, pressure 1～3MPa, ball load 15～20kg, abrasive material adopts the W60 alumina powder, and grinding agent adopts machine oil+a small amount of additive;
VIII, once stable processing
Stablize 130～140 ℃ of treatment temperatures;
IX, correct grinding
On steel ball lapping machine, finish grind, pressure 1～3MPa, ball load 15～20kg, abrasive material adopts the W40 alumina powder, and grinding agent adopts machine oil+a small amount of additive;
X, the stable processing of secondary
Stablize 130～140 ℃ of treatment temperatures;
XI, lappingout
Lappingout on steel ball lapping machine, lappingout pressure 3MPa, abrasive sheet rotating speed are controlled at 15～30 rev/mins, and abrasive material adopts 350 order chromium oxide micro mist+super hard abrasives, and grinding agent adopts machine oil+a small amount of additive;
XII, cleaning
Cleaning agent: tasteless kerosene or white gas;
XIII, microscopical appearance
In 14～90 times of binocular body formula microscopic examination presentation qualities and examination;
XIV, oiling packing
Oiling packing on heat-sealing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101931246A CN101186005A (en) | 2007-11-30 | 2007-11-30 | Processing technique of 9Cr18 stainless steel capable of being improved to G3 level |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101931246A CN101186005A (en) | 2007-11-30 | 2007-11-30 | Processing technique of 9Cr18 stainless steel capable of being improved to G3 level |
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| CN101186005A true CN101186005A (en) | 2008-05-28 |
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| CNA2007101931246A Pending CN101186005A (en) | 2007-11-30 | 2007-11-30 | Processing technique of 9Cr18 stainless steel capable of being improved to G3 level |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799048A (en) * | 2010-03-08 | 2010-08-11 | 江苏力星钢球有限公司 | Manufacturing process of high-speed precision bearing steel ball |
| CN101954571A (en) * | 2010-09-16 | 2011-01-26 | 温州市龙湾沙城钢球厂 | Manufacturing process of 0.68 mm nonmagnetic alloy balls |
| CN102179667A (en) * | 2011-03-04 | 2011-09-14 | 瓦房店轴承砂轮制造有限公司 | Special processing process of composite ball |
| CN102212669A (en) * | 2010-07-21 | 2011-10-12 | 江苏通用钢球滚子有限公司 | Heat treatment process of high-speed precision bearing steel ball |
| CN102319991A (en) * | 2011-09-30 | 2012-01-18 | 中山市乾润精密钢球制造有限公司 | Manufacturing method of micro-steel balls |
| CN102653048A (en) * | 2012-05-28 | 2012-09-05 | 安顺市虹翼特种钢球制造有限公司 | Machining method of steel ball for nipple type water fountain |
| CN102653044A (en) * | 2011-03-02 | 2012-09-05 | 五冶集团上海有限公司 | Method for manufacturing coal supporting bottom plate of coal charging vehicle of stamping coke oven |
| CN103008994A (en) * | 2012-12-12 | 2013-04-03 | 山东东阿钢球集团有限公司 | Production method for dedicated steel ball for bearing of high-speed high-precision numerical control machine tool |
| CN103372758A (en) * | 2012-04-12 | 2013-10-30 | 安顺市虹翼特种钢球制造有限公司 | Processing method for 3Cr13 material high-precision steel balls |
| CN103692303A (en) * | 2013-12-23 | 2014-04-02 | 河南金鑫精密轴承制造有限公司 | Precision angular contact ball bearing inner race grinding process |
| CN103878541A (en) * | 2014-02-26 | 2014-06-25 | 椿中岛机械(太仓)有限公司 | Special stainless steel ball production process for medical instruments |
| CN104117826A (en) * | 2014-07-24 | 2014-10-29 | 成都亨通兆业精密机械有限公司 | Method for manufacturing ring gauge facilitating detection efficiency |
| CN104148895A (en) * | 2014-07-15 | 2014-11-19 | 安庆银泰轴承有限公司 | Production method of rolling bearing |
| CN104259361A (en) * | 2014-07-22 | 2015-01-07 | 中原特钢股份有限公司 | High-carbon and high-chromium 9Cr18 martensite stainless steel shaft forging preparation technology |
| CN104259790A (en) * | 2014-10-04 | 2015-01-07 | 芜湖市宇恒特种钢球有限公司 | Method for machining high-precision steel ball |
| CN105624390A (en) * | 2016-03-25 | 2016-06-01 | 洛阳汇工轴承科技有限公司 | Heat treatment method of large thin-wall stainless steel bearing ring |
| CN105729071A (en) * | 2016-04-27 | 2016-07-06 | 安顺市虹翼特种钢球制造有限公司 | High-precision austenitic stainless steel ball machining method |
| CN106239060A (en) * | 2016-08-29 | 2016-12-21 | 中航工业哈尔滨轴承有限公司 | A kind of eliminate the processing method of stress during high-temperature bearing steel steel ball processing |
| CN106392492A (en) * | 2016-11-23 | 2017-02-15 | 安顺市虹翼特种钢球制造有限公司 | Steel ball production machining method |
| CN106475746A (en) * | 2016-12-09 | 2017-03-08 | 安顺市虹翼特种钢球制造有限公司 | A kind of processing method of steel ball with high precision |
| CN109531281A (en) * | 2018-07-19 | 2019-03-29 | 上海伊泰科钢球有限公司 | A kind of aluminium alloy ball processing technique |
| CN112621393A (en) * | 2020-12-18 | 2021-04-09 | 中国航发哈尔滨轴承有限公司 | Grinding plate for steel ball superfinishing cycle processing and method for preparing steel ball by grinding plate |
| CN114589455A (en) * | 2020-12-04 | 2022-06-07 | 温州市中特钢球有限公司 | Machining process of nonmagnetic bearing steel ball |
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2007
- 2007-11-30 CN CNA2007101931246A patent/CN101186005A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799048A (en) * | 2010-03-08 | 2010-08-11 | 江苏力星钢球有限公司 | Manufacturing process of high-speed precision bearing steel ball |
| CN101799048B (en) * | 2010-03-08 | 2011-11-23 | 江苏力星通用钢球股份有限公司 | Manufacturing process of high-speed precision bearing steel ball |
| CN102212669B (en) * | 2010-07-21 | 2012-07-11 | 江苏力星通用钢球股份有限公司 | Heat treatment process of high-speed precision bearing steel ball |
| CN102212669A (en) * | 2010-07-21 | 2011-10-12 | 江苏通用钢球滚子有限公司 | Heat treatment process of high-speed precision bearing steel ball |
| CN101954571A (en) * | 2010-09-16 | 2011-01-26 | 温州市龙湾沙城钢球厂 | Manufacturing process of 0.68 mm nonmagnetic alloy balls |
| CN102653044A (en) * | 2011-03-02 | 2012-09-05 | 五冶集团上海有限公司 | Method for manufacturing coal supporting bottom plate of coal charging vehicle of stamping coke oven |
| CN102179667A (en) * | 2011-03-04 | 2011-09-14 | 瓦房店轴承砂轮制造有限公司 | Special processing process of composite ball |
| CN102179667B (en) * | 2011-03-04 | 2015-03-25 | 瓦房店轴承砂轮制造有限公司 | Special processing process of composite ball |
| CN102319991A (en) * | 2011-09-30 | 2012-01-18 | 中山市乾润精密钢球制造有限公司 | Manufacturing method of micro-steel balls |
| CN103372758A (en) * | 2012-04-12 | 2013-10-30 | 安顺市虹翼特种钢球制造有限公司 | Processing method for 3Cr13 material high-precision steel balls |
| CN102653048A (en) * | 2012-05-28 | 2012-09-05 | 安顺市虹翼特种钢球制造有限公司 | Machining method of steel ball for nipple type water fountain |
| CN103008994B (en) * | 2012-12-12 | 2015-03-11 | 山东东阿钢球集团有限公司 | Production method for dedicated steel ball for bearing of high-speed high-precision numerical control machine tool |
| CN103008994A (en) * | 2012-12-12 | 2013-04-03 | 山东东阿钢球集团有限公司 | Production method for dedicated steel ball for bearing of high-speed high-precision numerical control machine tool |
| CN103692303A (en) * | 2013-12-23 | 2014-04-02 | 河南金鑫精密轴承制造有限公司 | Precision angular contact ball bearing inner race grinding process |
| CN103692303B (en) * | 2013-12-23 | 2016-02-10 | 河南金鑫精密轴承制造有限公司 | Accurate angular contact ball bearing inner ring grinding process |
| CN103878541A (en) * | 2014-02-26 | 2014-06-25 | 椿中岛机械(太仓)有限公司 | Special stainless steel ball production process for medical instruments |
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| CN104259361B (en) * | 2014-07-22 | 2017-05-10 | 中原特钢股份有限公司 | High-carbon and high-chromium 9Cr18 martensite stainless steel shaft forging preparation technology |
| CN104259361A (en) * | 2014-07-22 | 2015-01-07 | 中原特钢股份有限公司 | High-carbon and high-chromium 9Cr18 martensite stainless steel shaft forging preparation technology |
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| CN105624390A (en) * | 2016-03-25 | 2016-06-01 | 洛阳汇工轴承科技有限公司 | Heat treatment method of large thin-wall stainless steel bearing ring |
| CN105729071A (en) * | 2016-04-27 | 2016-07-06 | 安顺市虹翼特种钢球制造有限公司 | High-precision austenitic stainless steel ball machining method |
| CN106239060A (en) * | 2016-08-29 | 2016-12-21 | 中航工业哈尔滨轴承有限公司 | A kind of eliminate the processing method of stress during high-temperature bearing steel steel ball processing |
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| CN106475746A (en) * | 2016-12-09 | 2017-03-08 | 安顺市虹翼特种钢球制造有限公司 | A kind of processing method of steel ball with high precision |
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| CN114589455A (en) * | 2020-12-04 | 2022-06-07 | 温州市中特钢球有限公司 | Machining process of nonmagnetic bearing steel ball |
| CN112621393A (en) * | 2020-12-18 | 2021-04-09 | 中国航发哈尔滨轴承有限公司 | Grinding plate for steel ball superfinishing cycle processing and method for preparing steel ball by grinding plate |
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