CN106011679A - Preparing method of bearing - Google Patents

Preparing method of bearing Download PDF

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Publication number
CN106011679A
CN106011679A CN201610354270.1A CN201610354270A CN106011679A CN 106011679 A CN106011679 A CN 106011679A CN 201610354270 A CN201610354270 A CN 201610354270A CN 106011679 A CN106011679 A CN 106011679A
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CN
China
Prior art keywords
bearing
temperature
carried out
hour
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610354270.1A
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Chinese (zh)
Inventor
吴俊德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhenjiang Jingwei Engineering Machinery Co Ltd
Original Assignee
Zhenjiang Jingwei Engineering Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhenjiang Jingwei Engineering Machinery Co Ltd filed Critical Zhenjiang Jingwei Engineering Machinery Co Ltd
Priority to CN201610354270.1A priority Critical patent/CN106011679A/en
Publication of CN106011679A publication Critical patent/CN106011679A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • F16C2204/62—Low carbon steel, i.e. carbon content below 0.4 wt%
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/60—Shaping by removing material, e.g. machining
    • F16C2220/62—Shaping by removing material, e.g. machining by turning, boring, drilling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2220/00—Shaping
    • F16C2220/60—Shaping by removing material, e.g. machining
    • F16C2220/70—Shaping by removing material, e.g. machining by grinding

Abstract

The invention discloses a preparing method of a bearing. The preparing method comprises following steps: firstly, smelting is carried out by adoption of a conventional non-vacuum medium-frequency induction furnace, molten steel components are adjusted to meet the above range, and a billet is formed through pouring; secondly, electroslag remelting is carried out, and a bearing workblank is forged; thirdly, heat treatment is carried out, the quenching heating temperature ranges from 1200 DEG C to 1300 DEG C, heat preservation is carried out for 1 hour to 1.5 hours, oil quenching to the room temperature is executed, and then tempering is carried out; fourthly, turning and grinding are adopted to prepare a finished product; and fifthly, after inspection, corrosion prevention, rust prevention and warehousing are carried out. Through three-time tempering, hardness of the surface of the bearing can show wear resistance, the obtained bearing can be used for a large machine and can bear strong impact, and the service life of the bearing is ensured.

Description

A kind of preparation method of bearing
Technical field
The invention belongs to bearing machining field, be specifically related to the preparation method of a kind of bearing.
Background technology
Bearing is typical universal machine parts, and range of application almost relates to whole national economy and national defence.In different applied environments, requirement to material property is also different, as under the medium above corrosive atmospheres such as Aero-Space, ocean development, oil exploitation, modern chemical industry, in addition to requiring material and there is high mechanical property and high processing characteristics, it is also desirable to have high decay resistance.The machinability of steel, wearability, dimensional stability, fatigue strength etc., in addition to mechanical property, decay resistance are had higher requirement, are had higher requirement by the most miniature and small size bearing steel.
Summary of the invention
Goal of the invention: present invention aims to the deficiencies in the prior art, it is provided that the preparation method of a kind of bearing.
Technical scheme: in order to reach foregoing invention purpose, the present invention is specifically achieved like this: the preparation method of a kind of bearing, the chemical composition of this bearing is made up of following component by weight percentage : C:0.3-0.4, Cr : 19-20, Ni:1.8-2.0, Mo: 0.3-0.5, Al:0.2-0.4, W:0.1-0.2, B: 0.03-0.05, Ti: 0.02-0.04, Mn≤3.00, Si≤0.6, S≤0.01, P≤0.02, remaining is Fe and inevitable impurity；Described preparation method comprises the steps: 1) use conventional antivacuum intermediate frequency furnace melting, adjust molten steel component and meet above-mentioned scope, pour into billet；2) carry out electroslag remelting, be forged into bearing blank；3) heat treatment, wherein quenching temperature is 1200-1300 DEG C, is incubated 1-1.5 hour, and oil quenching, to room temperature, is then tempered；4) turning and grinding is used to be prepared as finished product；5) after inspection, antiseptic and rustproof warehouse-in.
Preferably, step 2) in, electroslag remelting, specifically, energising, adjusts melting current, and its electric current is 3000 ± 1000A, voltage is 45 ± 5V, and molten steel drop is through melted slag blanket, and electroslag remelting becomes ESR ingot.
Preferably, in step 3), described times of tempering is three times, and temperature is 300-320 DEG C for the first time, and temperature retention time is 1-2 hour；Temperature is 200-220 DEG C for the second time, and temperature retention time is 2-3 hour；Temperature is 160-180 DEG C for the third time, and temperature retention time is 0.5-1 hour.
The beneficial effects of the present invention is: the present invention is to require and the specialized designs composition of steel according to using of corrosion resisting bearing, by the comprehensive function of alloying element, the crystal grain of this steel is refined, crystal boundary totally, thus improves the mechanical property of steel, improves the anti-fatigue performance of steel.Bearing prepared by the present invention has that hardness is high, corrosion resisting property is strong, it is adaptable to the corrosive atmospheres such as Aero-Space, ocean development, oil exploitation.The present invention is by the tempering of three times so that bearing surface hardness and use embodiment wearability, the bearing obtained can be used on big machinery and can Bear strong impact and ensure the service life of bearing.
Detailed description of the invention
Embodiment 1:
The preparation method of a kind of bearing, the chemical composition of this bearing is made up of following component by weight percentage : C:0.3, Cr: 19, Ni:1.8, Mo:0.3, Al:0.2, W:0.1, B: 0.03, Ti: 0.02, Mn≤3.00, Si≤0.6, S≤0.01, P≤0.02, remaining is Fe and inevitable impurity ；
Described preparation method comprises the steps: 1) use conventional antivacuum intermediate frequency furnace melting, adjust molten steel component and meet above-mentioned scope, pour into billet；2) energising, adjusts melting current, and its electric current is 3000A, voltage is 45V, and molten steel drop is through melted slag blanket, and electroslag remelting becomes ESR ingot, is then forged into bearing blank；3) heat treatment, wherein quenching temperature is 1200 DEG C, is incubated 1 hour, and oil quenching, to room temperature, then carries out three tempering, and temperature is 300 DEG C for the first time, and temperature retention time is 1 hour；Temperature is 200 DEG C for the second time, and temperature retention time is 2 hours；Temperature is 160 DEG C for the third time, and temperature retention time is 0.5 hour；4) turning and grinding is used to be prepared as finished product；5) after inspection, antiseptic and rustproof warehouse-in.
Embodiment 2:
The preparation method of a kind of bearing, the chemical composition of this bearing is made up of following component by weight percentage : C:0.35, Cr: 19.5, Ni:1.9, Mo: 0.4, Al:0.3, W:0.15, B: 0.04, Ti: 0.03, Mn≤3.00, Si≤0.6, S≤0.01, P≤0.02, remaining is Fe and inevitable impurity ；
Described preparation method comprises the steps: 1) use conventional antivacuum intermediate frequency furnace melting, adjust molten steel component and meet above-mentioned scope, pour into billet；2) energising, adjusts melting current, and its electric current is 3500A, voltage is 48V, and molten steel drop is through melted slag blanket, and electroslag remelting becomes ESR ingot, is then forged into bearing blank；3) heat treatment, wherein quenching temperature is 1250 DEG C, is incubated 1.2 hours, and oil quenching, to room temperature, then carries out three tempering, and temperature is 310 DEG C for the first time, and temperature retention time is 1.5 hours；Temperature is 210 DEG C for the second time, and temperature retention time is 2.5 hours；Temperature is 170 DEG C for the third time, and temperature retention time is 0.8 hour；4) turning and grinding is used to be prepared as finished product；5) after inspection, antiseptic and rustproof warehouse-in.
Embodiment 3:
A kind of preparation method of bearing, the chemical composition of this bearing is made up of following component by weight percentage: C:0.4, Cr:20, Ni:2.0, Mo:0.5, Al:0.4, W:0.2, B:0.05, Ti:0.04, Mn≤3.00, Si≤0.6, S≤0.01, P≤0.02, remaining is Fe and inevitable impurity；
Described preparation method comprises the steps: 1) use conventional antivacuum intermediate frequency furnace melting, adjust molten steel component and meet above-mentioned scope, pour into billet；2) energising, adjusts melting current, and its electric current is 4000A, voltage is 50V, and molten steel drop is through melted slag blanket, and electroslag remelting becomes ESR ingot, is then forged into bearing blank；3) heat treatment, wherein quenching temperature is 1300 DEG C, is incubated 1.5 hours, and oil quenching, to room temperature, then carries out three tempering, and temperature is 320 DEG C for the first time, and temperature retention time is 2 hours；Temperature is 220 DEG C for the second time, and temperature retention time is 3 hours；Temperature is 180 DEG C for the third time, and temperature retention time is 1 hour；4) turning and grinding is used to be prepared as finished product；5) after inspection, antiseptic and rustproof warehouse-in.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvement, and these improvement also should be regarded as protection scope of the present invention.

Claims (3)

1. the preparation method of a bearing, it is characterised in that the chemical composition of this bearing is made up of following component by weight percentage: C:0.3-0.4, Cr: 19-20, Ni:1.8-2.0, Mo: 0.3-0.5, Al:0.2-0.4, W:0.1-0.2, B: 0.03-0.05, Ti: 0.02-0.04, Mn≤3.00, Si≤0.6, S≤0.01, P≤0.02, remaining is Fe and inevitable impurity；Described preparation method comprises the steps: 1) use conventional antivacuum intermediate frequency furnace melting, adjust molten steel component and meet above-mentioned scope, pour into billet；2) carry out electroslag remelting, be forged into bearing blank；3) heat treatment, wherein quenching temperature is 1200-1300 DEG C, is incubated 1-1.5 hour, and oil quenching, to room temperature, is then tempered；4) turning and grinding is used to be prepared as finished product；5) after inspection, antiseptic and rustproof warehouse-in.
The preparation method of bearing the most according to claim 1, it is characterised in that: step 2) in, electroslag remelting is specially, energising, adjusts melting current, and its electric current is 3000 ± 1000A, voltage is 45 ± 5V, molten steel drop is through melted slag blanket, and electroslag remelting becomes ESR ingot.
The preparation method of bearing the most according to claim 1, it is characterised in that: in step 3), described times of tempering is three times, and temperature is 300-320 DEG C for the first time, and temperature retention time is 1-2 hour；Temperature is 200-220 DEG C for the second time, and temperature retention time is 2-3 hour；Temperature is 160-180 DEG C for the third time, and temperature retention time is 0.5-1 hour.
CN201610354270.1A 2016-05-25 2016-05-25 Preparing method of bearing Pending CN106011679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610354270.1A CN106011679A (en) 2016-05-25 2016-05-25 Preparing method of bearing

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Application Number Priority Date Filing Date Title
CN201610354270.1A CN106011679A (en) 2016-05-25 2016-05-25 Preparing method of bearing

Publications (1)

Publication Number Publication Date
CN106011679A true CN106011679A (en) 2016-10-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106555131A (en) * 2016-12-02 2017-04-05 机械科学研究总院青岛分院 A kind of Super High Carbon profile shaft holds Heat-Treatment of Steel method
CN107881402A (en) * 2017-11-23 2018-04-06 方晓超 A kind of preparation method of bearing ring

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101041884A (en) * 2006-03-20 2007-09-26 百乐特殊钢公司 Alloy for roller bearing
CN101117688A (en) * 2007-09-14 2008-02-06 上海材料研究所 Novel stainless bearing steel and method for manufacturing same
CN101880833A (en) * 2010-06-29 2010-11-10 上海材料研究所 Stainless bearing steel adopting microalloying of rare earth and applicable to manufacturing miniature and small-size bearings and manufacturing method thereof
CN102925818A (en) * 2012-11-23 2013-02-13 中天钢铁集团有限公司 Corrosion-resistant and high-temperature resistant bearing steel and production process thereof
CN103789683A (en) * 2012-11-03 2014-05-14 锡山区鹅湖慧盾机械厂 Preparation method of corrosion resisting bearing
CN103805889A (en) * 2012-11-03 2014-05-21 锡山区鹅湖慧盾机械厂 Corrosion-resistant bearing steel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101041884A (en) * 2006-03-20 2007-09-26 百乐特殊钢公司 Alloy for roller bearing
CN101117688A (en) * 2007-09-14 2008-02-06 上海材料研究所 Novel stainless bearing steel and method for manufacturing same
CN101880833A (en) * 2010-06-29 2010-11-10 上海材料研究所 Stainless bearing steel adopting microalloying of rare earth and applicable to manufacturing miniature and small-size bearings and manufacturing method thereof
CN103789683A (en) * 2012-11-03 2014-05-14 锡山区鹅湖慧盾机械厂 Preparation method of corrosion resisting bearing
CN103805889A (en) * 2012-11-03 2014-05-21 锡山区鹅湖慧盾机械厂 Corrosion-resistant bearing steel
CN102925818A (en) * 2012-11-23 2013-02-13 中天钢铁集团有限公司 Corrosion-resistant and high-temperature resistant bearing steel and production process thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
曾正明等: "《实用金属材料选用手册》", 31 March 2012 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106555131A (en) * 2016-12-02 2017-04-05 机械科学研究总院青岛分院 A kind of Super High Carbon profile shaft holds Heat-Treatment of Steel method
CN107881402A (en) * 2017-11-23 2018-04-06 方晓超 A kind of preparation method of bearing ring

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Application publication date: 20161012