CN106011432A - Heat treatment technology for spring used for bearing - Google Patents
Heat treatment technology for spring used for bearing Download PDFInfo
- Publication number
- CN106011432A CN106011432A CN201610518225.5A CN201610518225A CN106011432A CN 106011432 A CN106011432 A CN 106011432A CN 201610518225 A CN201610518225 A CN 201610518225A CN 106011432 A CN106011432 A CN 106011432A
- Authority
- CN
- China
- Prior art keywords
- spring
- annealing
- bearing
- technology
- oil
- 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
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Classifications
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
-
- 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
- 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
- C21D1/26—Methods of annealing
Abstract
The invention discloses a heat treatment technology for a spring used for a bearing. The heat treatment technology includes the following steps that firstly, annealing treatment is conducted; secondly, oil cooling is conducted; thirdly, tempering treatment is conducted; and fourthly, air cooling is conducted. The heat treatment technology for the spring used for the bearing is easy to operate and achieve, through the reasonable design for the annealing and tempering temperature and a cooling treatment technology adopted after annealing and tempering, the treated spring is high in strength and good in toughness and elasticity, the elasticity durability of the spring is relatively high, the service life of the spring is prolonged, and the service life of the bearing provided with the spring is prolonged.
Description
Technical field
The present invention relates to spring art, particularly relate to the Technology for Heating Processing of a kind of bearing spring.
Background technology
Bearing is to play parts that are fixing and that reduce load coefficient of friction in mechanical transmission course, i.e. when other parts produce relative motion on axle each other, is used for reducing the fixing parts of the coefficient of friction in power transmission process and holding shaft center.Spring is a kind of machine components utilizing elasticity to carry out work.Bearing spring is arranged in bearing, matches with bearing and spring washer.The Technology for Heating Processing of existing bearing spring is unreasonable, at high temperature works long hours and there will be logy problem, and then the service life of image bearing.
Summary of the invention
The technical problem that present invention mainly solves is to provide the Technology for Heating Processing of a kind of bearing spring, it is possible to solve the problems referred to above that existing bearing spring exists.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provides the Technology for Heating Processing of a kind of bearing spring, comprises the steps:
(1) annealing: the bearing spring after molding is placed in annealing furnace, carries out making annealing treatment 30～60min at 650～750 DEG C；
(2) oil is cold: is placed in the cooling oil of uniform temperature by the spring after annealing in step (2) and carries out oil bath and be cooled to room temperature；
(3) temper: by step (3) through oil cold after spring be placed in tempering furnace, carry out temper a period of time at 250～350 DEG C；
(4) air cooling: the spring after tempered in step (4) is taken out from tempering furnace, is cooled to room temperature in atmosphere, then carries out electroplating surface or spray treatment.
In a preferred embodiment of the present invention, in described step (1), the temperature of described annealing is 700 DEG C, and the time is 40～50min.
In a preferred embodiment of the present invention, in described step (2), the temperature of described cooling oil is 40～50 DEG C.
In a preferred embodiment of the present invention, in described step (3), the temperature of described tempering furnace is 300 DEG C, and tempering time is 45～50 DEG C.
The invention has the beneficial effects as follows: the Technology for Heating Processing of the present invention a kind of bearing spring, simple to operate, easily realize, it processes technique by the cooling after reasonably annealing and the design of temperature and annealing and tempering, make the spring strength after processing high, toughness and good springiness, and the elastic persistency of spring is higher, improve spring and install service life of bearing of this spring.
Detailed description of the invention
Below presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
The embodiment of the present invention includes:
Embodiment 1
The Technology for Heating Processing of a kind of bearing spring, comprises the steps:
(1) annealing: the bearing (hardness be HRC be 65) after molding is placed in annealing furnace with spring, carries out making annealing treatment 30～40min at 650～700 DEG C；
(2) oil is cold: is placed in the cooling oil of 40 DEG C by the spring after annealing in step (2) and carries out oil bath and be cooled to room temperature；
(3) temper: spring after oil is cold in step (3) is placed in tempering furnace, carries out temper 45～50 DEG C at 250～300 DEG C；
(4) air cooling: the spring after tempered in step (3) is taken out from tempering furnace, is cooled to room temperature in atmosphere, then carries out electroplating surface or spray treatment.
Embodiment 2
The Technology for Heating Processing of a kind of bearing spring, comprises the steps:
(1) annealing: the bearing (hardness be HRC be 70) after molding is placed in annealing furnace with spring, carries out making annealing treatment 30～40min at 700～750 DEG C；
(2) oil is cold: is placed in the cooling oil of 50 DEG C by the spring after annealing in step (2) and carries out oil bath and be cooled to room temperature；
(3) temper: spring after oil is cold in step (3) is placed in tempering furnace, carries out temper 45～50 DEG C at 300～350 DEG C；
(4) air cooling: the spring after tempered in step (3) is taken out from tempering furnace, is cooled to room temperature in atmosphere, then carries out electroplating surface or spray treatment.
Spring after heat treatment of the present invention, after tested, its toughness improves more than 10%, and elastic raising more than 15%, the assembling with bearing is good.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (4)
1. the Technology for Heating Processing of a bearing spring, it is characterised in that comprise the steps:
(1) annealing: the bearing spring after molding is placed in annealing furnace, carries out making annealing treatment 30～60min at 650～750 DEG C；
(2) oil is cold: is placed in the cooling oil of uniform temperature by the spring after annealing in step (2) and carries out oil bath and be cooled to room temperature；
(3) temper: by step (3) through oil cold after spring be placed in tempering furnace, carry out temper a period of time at 250～350 DEG C；
(4) air cooling: the spring after tempered in step (4) is taken out from tempering furnace, is cooled to room temperature in atmosphere, then carries out electroplating surface or spray treatment.
The Technology for Heating Processing of bearing spring the most according to claim 1, it is characterised in that in described step (1), the temperature of described annealing is 700 DEG C, and the time is 40～50min.
The Technology for Heating Processing of bearing spring the most according to claim 1, it is characterised in that in described step (2), the temperature of described cooling oil is 40～50 DEG C.
The Technology for Heating Processing of bearing spring the most according to claim 1, it is characterised in that in described step (3), the temperature of described tempering furnace is 300 DEG C, and tempering time is 45～50 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518225.5A CN106011432A (en) | 2016-07-05 | 2016-07-05 | Heat treatment technology for spring used for bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518225.5A CN106011432A (en) | 2016-07-05 | 2016-07-05 | Heat treatment technology for spring used for bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106011432A true CN106011432A (en) | 2016-10-12 |
Family
ID=57107042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610518225.5A Pending CN106011432A (en) | 2016-07-05 | 2016-07-05 | Heat treatment technology for spring used for bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106011432A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002178077A (en) * | 2000-12-14 | 2002-06-25 | Chuo Spring Co Ltd | Method of manufacturing coil spring |
| CN1556866A (en) * | 2002-07-22 | 2004-12-22 | ��ľ������ҵ��ʽ���� | Process for producing oil tempered wire |
| CN101543947A (en) * | 2009-04-25 | 2009-09-30 | 南阳二机石油装备(集团)有限公司 | Method for manufacturing spring of derrick centralizer |
| CN101642868A (en) * | 2009-07-30 | 2010-02-10 | 杭州钱江弹簧有限公司 | Technic for processing suspension spring |
| CN104278133A (en) * | 2014-09-26 | 2015-01-14 | 无锡市天力五金弹簧厂 | Thermal treatment technology for spring |
| CN104630441A (en) * | 2015-01-29 | 2015-05-20 | 安徽工业大学 | Heat treatment method for improving anti-fatigue performance of spring steel SK5 for automobile safety belt coil spring |
-
2016
- 2016-07-05 CN CN201610518225.5A patent/CN106011432A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002178077A (en) * | 2000-12-14 | 2002-06-25 | Chuo Spring Co Ltd | Method of manufacturing coil spring |
| CN1556866A (en) * | 2002-07-22 | 2004-12-22 | ��ľ������ҵ��ʽ���� | Process for producing oil tempered wire |
| CN101543947A (en) * | 2009-04-25 | 2009-09-30 | 南阳二机石油装备(集团)有限公司 | Method for manufacturing spring of derrick centralizer |
| CN101642868A (en) * | 2009-07-30 | 2010-02-10 | 杭州钱江弹簧有限公司 | Technic for processing suspension spring |
| CN104278133A (en) * | 2014-09-26 | 2015-01-14 | 无锡市天力五金弹簧厂 | Thermal treatment technology for spring |
| CN104630441A (en) * | 2015-01-29 | 2015-05-20 | 安徽工业大学 | Heat treatment method for improving anti-fatigue performance of spring steel SK5 for automobile safety belt coil spring |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |