CN105543632A - Preparation method of high-strength roller bearing outer ring - Google Patents
Preparation method of high-strength roller bearing outer ring Download PDFInfo
- Publication number
- CN105543632A CN105543632A CN201510995053.6A CN201510995053A CN105543632A CN 105543632 A CN105543632 A CN 105543632A CN 201510995053 A CN201510995053 A CN 201510995053A CN 105543632 A CN105543632 A CN 105543632A
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- Prior art keywords
- equal
- outer ring
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- steel ingot
- roller bearing
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a preparation method of a high-strength roller bearing outer ring. The preparation method comprises the following step of casting a steel ingot, wherein the steel ingot comprises the chemical components by weight percentage: greater than or equal to 0.75% and less than or equal to 0.95% of C, greater than or equal to 1.2% and less than or equal to 1.4% of Si, greater than or equal to 0.5% and less than or equal to 0.7% of Mn, greater than or equal to 0.005% and less than or equal to 0.011% of P, greater than or equal to 0.003% % and less than or equal to 0.01% of S, greater than or equal to 1.5% and less than or equal to 1.7% of Cr, greater than or equal to 0.008% and less than or equal to 0.012% of W, greater than or equal to 0.08% and less than or equal to 0.12% of Ti, and the balance Fe and unavoidable impurities. The mechanical property of the outer ring is further improved; material input of the outer ring is saved; the overall mechanical strength of the outer ring and the abrasive resistance of a roller path are further improved; and the service life of the outer ring is increased.
Description
Technical field
The present invention relates to the outer coil preparation method of a kind of high strength roller bearing.
Background technology
Bearing is a kind of important spare part in contemporary mechanical means.Its major function is supported mechanical rotator, reduces the frictional coefficient in its moving process, and ensures its rotating accuracy.Rolling bearing is generally made up of outer ring, inner ring, rolling body and retainer four part, is made up of strictly speaking outer ring, inner ring, rolling body, retainer, sealing, the large part of lubricating oil six.Mainly possess outer ring, inner ring, rolling body and just surely can mean rolling bearing.Require higher for outer ring physical strength and wear resistance.
Summary of the invention
The object of this invention is to provide the outer coil preparation method of a kind of high strength roller bearing, the mechanical property of product is improved further, has saved product materials, and the wear resistance performance of outer ring overall mechanical strength and raceway improves further, improves the work-ing life of product.
Technical scheme of the present invention is as follows:
The outer coil preparation method of a kind of high strength roller bearing, comprises the following steps:
A, cast steel ingot, in steel ingot, chemical component weight per-cent is: 0.75%≤C≤0.95%, 1.2≤Si≤1.4%, 0.5%≤Mn≤0.7%, 0.005%≤P≤0.011%, 0.003%≤S≤0.01%, 1.5%≤Cr≤1.7%, 0.008≤W≤0.012%, 0.08≤Ti≤0.12%, surplus is iron and inevitable impurity;
B, pouring temperature control at 1150 DEG C ~ 1280 DEG C, casting temperature air cooling carries out water-cooled to when 400 DEG C ~ 500 DEG C, after outward appearance is checked and accepted, bonderizing is carried out after water-cooled, surface high-temp bonderizing: carry out at the temperature of 100-125 DEG C, the free acidity of phosphate solution is 1: 3-4 in the ratio of total acidity, treatment time is 65-85 minute, then be heated in the temperature range of 1150 DEG C-1250 DEG C, again to workpiece jumping-up-pulling, alignment afterwards, correction size, full circle make forging ratio 4-5, to forge outer ring;
C, thermal treatment
Surperficial Atmosphere controlling heat-treatment is carried out to the outer ring after conducting forging processing: Atmosphere controlling heat-treatment passes into mixed gas in heat treated stove, nitrogen intake is at 125 ~ 145ml/min, ethanol intake is at 54 ~ 70ml/min, propane intake is at 24 ~ 43ml/min, and its furnace gas atmosphere composition weight part scope control is at a nitrogen content 45 ~ 55 parts, hydrogen content 25 ~ 28 parts, carbon dioxide content 10 ~ 12 parts.
In steel ingot, chemical component weight per-cent is: 0.8%≤C≤0.9%, 1.25≤Si≤1.35%, 0.55%≤Mn≤0.65%, 0.007%≤P≤0.009%, 0.006%≤S≤0.008%, 1.55%≤Cr≤1.65%, 0.009≤W≤0.011%, 0.09≤Ti≤0.11%, surplus is iron and inevitable impurity.
The mechanical property of product of the present invention is improved further, has saved product materials, and the wear resistance performance of outer ring overall mechanical strength and raceway improves further, improves the work-ing life of product.
Mechanics properties testing data of the present invention are as follows:
Tensile strength sigma b (MPa): >=45
Yield strength σ s (MPa): >=55
Relative reduction in area ψ (%): >=55
Notched bar impact strength α kv (J/cm2): >=33.
Embodiment
The outer coil preparation method of a kind of high strength roller bearing, comprises the following steps:
A, cast steel ingot, in steel ingot, chemical component weight per-cent is: 0.75%≤C≤0.95%, 1.2≤Si≤1.4%, 0.5%≤Mn≤0.7%, 0.005%≤P≤0.011%, 0.003%≤S≤0.01%, 1.5%≤Cr≤1.7%, 0.008≤W≤0.012%, 0.08≤Ti≤0.12%, surplus is iron and inevitable impurity;
B, pouring temperature control at 1150 DEG C ~ 1280 DEG C, casting temperature air cooling carries out water-cooled to when 400 DEG C ~ 500 DEG C, after outward appearance is checked and accepted, bonderizing is carried out after water-cooled, surface high-temp bonderizing: carry out at the temperature of 100-125 DEG C, the free acidity of phosphate solution is 1: 3-4 in the ratio of total acidity, treatment time is 65-85 minute, then be heated in the temperature range of 1150 DEG C-1250 DEG C, again to workpiece jumping-up-pulling, alignment afterwards, correction size, full circle make forging ratio 4-5, to forge outer ring;
C, thermal treatment
Surperficial Atmosphere controlling heat-treatment is carried out to the outer ring after conducting forging processing: Atmosphere controlling heat-treatment passes into mixed gas in heat treated stove, nitrogen intake is at 125 ~ 145ml/min, ethanol intake is at 54 ~ 70ml/min, propane intake is at 24 ~ 43ml/min, and its furnace gas atmosphere composition weight part scope control is at a nitrogen content 45 ~ 55 parts, hydrogen content 25 ~ 28 parts, carbon dioxide content 10 ~ 12 parts.
In steel ingot, chemical component weight per-cent is: 0.8%≤C≤0.9%, 1.25≤Si≤1.35%, 0.55%≤Mn≤0.65%, 0.007%≤P≤0.009%, 0.006%≤S≤0.008%, 1.55%≤Cr≤1.65%, 0.009≤W≤0.011%, 0.09≤Ti≤0.11%, surplus is iron and inevitable impurity.
Claims (2)
1. the outer coil preparation method of high strength roller bearing, is characterized in that, comprise the following steps:
A, cast steel ingot, in steel ingot, chemical component weight per-cent is: 0.75%≤C≤0.95%, 1.2≤Si≤1.4%, 0.5%≤Mn≤0.7%, 0.005%≤P≤0.011%, 0.003%≤S≤0.01%, 1.5%≤Cr≤1.7%, 0.008≤W≤0.012%, 0.08≤Ti≤0.12%, surplus is iron and inevitable impurity;
B, pouring temperature control at 1150 DEG C ~ 1280 DEG C, casting temperature air cooling carries out water-cooled to when 400 DEG C ~ 500 DEG C, after outward appearance is checked and accepted, bonderizing is carried out after water-cooled, surface high-temp bonderizing: carry out at the temperature of 100-125 DEG C, the free acidity of phosphate solution is 1: 3-4 in the ratio of total acidity, treatment time is 65-85 minute, then be heated in the temperature range of 1150 DEG C-1250 DEG C, again to workpiece jumping-up-pulling, alignment afterwards, correction size, full circle make forging ratio 4-5, to forge outer ring;
C, thermal treatment
Surperficial Atmosphere controlling heat-treatment is carried out to the outer ring after conducting forging processing: Atmosphere controlling heat-treatment passes into mixed gas in heat treated stove, nitrogen intake is at 125 ~ 145ml/min, ethanol intake is at 54 ~ 70ml/min, propane intake is at 24 ~ 43ml/min, and its furnace gas atmosphere composition weight part scope control is at a nitrogen content 45 ~ 55 parts, hydrogen content 25 ~ 28 parts, carbon dioxide content 10 ~ 12 parts.
2. the outer coil preparation method of high strength roller bearing according to claim 1, it is characterized in that, in steel ingot, chemical component weight per-cent is: 0.8%≤C≤0.9%, 1.25≤Si≤1.35%, 0.55%≤Mn≤0.65%, 0.007%≤P≤0.009%, 0.006%≤S≤0.008%, 1.55%≤Cr≤1.65%, 0.009≤W≤0.011%, 0.09≤Ti≤0.11%, surplus is iron and inevitable impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995053.6A CN105543632A (en) | 2015-12-28 | 2015-12-28 | Preparation method of high-strength roller bearing outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510995053.6A CN105543632A (en) | 2015-12-28 | 2015-12-28 | Preparation method of high-strength roller bearing outer ring |
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|---|---|
| CN105543632A true CN105543632A (en) | 2016-05-04 |
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| CN201510995053.6A Pending CN105543632A (en) | 2015-12-28 | 2015-12-28 | Preparation method of high-strength roller bearing outer ring |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880949A (en) * | 2016-05-24 | 2016-08-24 | 安庆银亿轴承有限公司 | Preparation method of high-strength outer ring for bearing of air conditioner |
| CN105880948A (en) * | 2016-05-24 | 2016-08-24 | 安庆银泰轴承有限公司 | Preparation method of linings for bearing of air conditioner |
| CN106078090A (en) * | 2016-06-20 | 2016-11-09 | 安徽省瑞杰锻造有限责任公司 | A kind of Forging Technology of large axis forging |
| CN106399761A (en) * | 2016-11-14 | 2017-02-15 | 安徽名杰净化科技有限公司 | Wind-erosion-resistant air-inlet grille board of purifier |
| CN106636946A (en) * | 2016-11-17 | 2017-05-10 | 马鞍山市银鼎机械制造有限公司 | Preparation method of grinder of high-hardness ball grinding mill |
| CN110000327A (en) * | 2019-03-12 | 2019-07-12 | 张家港中环海陆特锻股份有限公司 | The manufacturing process of hot ring is hidden in nuclear steam turbine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4023988A (en) * | 1976-02-02 | 1977-05-17 | Ford Motor Company | Heat treatment for ball bearing steel to improve resistance to rolling contact fatigue |
| CN1059940A (en) * | 1991-06-24 | 1992-04-01 | 河北工学院 | High-toughness antiwear lining plate of big ball mill and manufacturing process thereof |
| CN1702184A (en) * | 2004-05-24 | 2005-11-30 | 株式会社小松制作所 | Rolling member and producing method thereof |
| CN1780927A (en) * | 2003-07-31 | 2006-05-31 | 株式会社小松制作所 | Sintered sliding member and working implement-connecting apparatus |
| CN102886181A (en) * | 2012-09-28 | 2013-01-23 | 蚌埠市昊业滤清器有限公司 | Laminated cover board in air filter |
-
2015
- 2015-12-28 CN CN201510995053.6A patent/CN105543632A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4023988A (en) * | 1976-02-02 | 1977-05-17 | Ford Motor Company | Heat treatment for ball bearing steel to improve resistance to rolling contact fatigue |
| CN1059940A (en) * | 1991-06-24 | 1992-04-01 | 河北工学院 | High-toughness antiwear lining plate of big ball mill and manufacturing process thereof |
| CN1780927A (en) * | 2003-07-31 | 2006-05-31 | 株式会社小松制作所 | Sintered sliding member and working implement-connecting apparatus |
| CN1702184A (en) * | 2004-05-24 | 2005-11-30 | 株式会社小松制作所 | Rolling member and producing method thereof |
| CN102886181A (en) * | 2012-09-28 | 2013-01-23 | 蚌埠市昊业滤清器有限公司 | Laminated cover board in air filter |
Non-Patent Citations (1)
| Title |
|---|
| 陈友伟，高莉莉 主编: "《金属材料与热处理》", 31 January 2014 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880949A (en) * | 2016-05-24 | 2016-08-24 | 安庆银亿轴承有限公司 | Preparation method of high-strength outer ring for bearing of air conditioner |
| CN105880948A (en) * | 2016-05-24 | 2016-08-24 | 安庆银泰轴承有限公司 | Preparation method of linings for bearing of air conditioner |
| CN106078090A (en) * | 2016-06-20 | 2016-11-09 | 安徽省瑞杰锻造有限责任公司 | A kind of Forging Technology of large axis forging |
| CN106078090B (en) * | 2016-06-20 | 2018-05-08 | 安徽省瑞杰锻造有限责任公司 | A kind of forging technology of large axis forging |
| CN106399761A (en) * | 2016-11-14 | 2017-02-15 | 安徽名杰净化科技有限公司 | Wind-erosion-resistant air-inlet grille board of purifier |
| CN106636946A (en) * | 2016-11-17 | 2017-05-10 | 马鞍山市银鼎机械制造有限公司 | Preparation method of grinder of high-hardness ball grinding mill |
| CN110000327A (en) * | 2019-03-12 | 2019-07-12 | 张家港中环海陆特锻股份有限公司 | The manufacturing process of hot ring is hidden in nuclear steam turbine |
| CN110000327B (en) * | 2019-03-12 | 2020-06-02 | 张家港中环海陆高端装备股份有限公司 | Manufacturing process of heat shielding ring in nuclear turbine |
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| PB01 | Publication | ||
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Application publication date: 20160504 |