CN106011416A - Surface strengthening process for mute bearing steel balls - Google Patents
Surface strengthening process for mute bearing steel balls Download PDFInfo
- Publication number
- CN106011416A CN106011416A CN201610386733.2A CN201610386733A CN106011416A CN 106011416 A CN106011416 A CN 106011416A CN 201610386733 A CN201610386733 A CN 201610386733A CN 106011416 A CN106011416 A CN 106011416A
- Authority
- CN
- China
- Prior art keywords
- steel balls
- steel ball
- blade
- bearing steel
- strengthening
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
Abstract
The invention discloses a surface strengthening process for mute bearing steel balls. Blades and angles of a surface strengthening machine are controlled, and the revolving speed and the strengthening time are adjusted to improve the surface hardness of the steel balls for 2HRC, therefore, the crush load value of the steel balls is more than two times that of the national standards, scratch on the steel balls is avoided, the mute effect of the produced steel balls is good, and the service life is long. The crush load value of the steel balls produced by the invention is more than two times that of the national standards and the service life of the steel balls is more than ten times that of the rated national standard through test of the mechanical industry bearing product testing center (Hangzhou).
Description
Technical field
The present invention relates to the technical field that bearing steel ball manufactures, the surface intensified technique of a kind of quiet bearing steel ball.
Background technology
The quality of bearing quality, steel ball (rolling element) plays a significantly greater role, and owing to steel ball surface roughness has reached about 0.009um, finished product steel ball touches the material that roughness is lower than it, easily produces scratch and scratches and bumper injury, having a strong impact on the noise of bearing.
Summary of the invention
For the problems referred to above, the surface intensified technique of a kind of quiet bearing steel ball of the present invention, described technique is by surface peening machine blade and the control of angle, and rotating speed and the adjustment of enhanced time, steel ball surface hardness is made to improve 2HRC, both ensure that the load value that crushes of steel ball exceeded more than 2 times of national standard, and turn avoid the wiping scuffing that steel ball easily causes, the steel ball muting function of production is good, life time is long.Through mechanical industry bearing products inspection center (Hangzhou), the piano plate of manufacture of the present invention being crushed load and exceeded more than 2 times of national standard, the steel ball life-span exceedes more than 10 times of country's specified standards.
It is characterized in that: it is characterized in that surface peening machine cylinder and centrifugal wheel length of blade are 15 ~ 17cm, drum blade clockwise angle 10 ± 2 degree, centrifugal wheel blade is 4 uniform centers of circle of blade；
It is characterized in that: it is characterized in that strengthening machine cylinder rotating speed 16 ~ 17 revs/min, Speed of Reaction Wheels 450 ~ 550 revs/min, enhanced time 2 ~ 4 hours.
Detailed description of the invention
Steel ball after hard grind is put in centrifugal surface peening machine, turn clockwise strengthening machine cylinder 16 ~ 17 revs/min, steel ball is taken to by the blade in strengthening machine cylinder and falls above again, centrifugal wheel is with the high speed rotating of 450 ~ 550 turns per minute simultaneously, causes the steel ball in strengthening machine cylinder to clash into up and down, after reaching 2 ~ 4 hours of regulation, equipment is automatically stopped, by the mutual shock of steel ball, improve steel ball surface consistency, improve steel ball surface hardness.
The innovation of the present invention is:
1, surface peening machine cylinder and centrifugal wheel length of blade are 15 ~ 17cm, drum blade clockwise angle 10 ± 2 degree, and centrifugal wheel blade is 4 uniform centers of circle of blade, and controlling surface peening machine affects the key equipment point of steel ball strengthening effect；
2, strengthening machine cylinder rotating speed 16 ~ 17 revs/min, Speed of Reaction Wheels 450 ~ 550 revs/min, enhanced time 2 ~ 4 hours, save enhanced time, and reached good strengthening effect, and steel ball surface hardness improves about 2HRC, and steel ball surface is not easy to produce wipes scuffing.
Claims (3)
1. the surface intensified technique of a quiet bearing steel ball, it is characterised in that control width and angle, the time of strengthening and the rotating speed of strengthening machine blade.
2. the surface intensified technique of a kind of quiet bearing steel ball required according to right 1, it is characterised in that surface peening machine cylinder and centrifugal wheel length of blade are 15 ~ 17cm, drum blade clockwise angle 10 ± 2 degree, and centrifugal wheel blade is 4 uniform centers of circle of blade.
3. the surface intensified technique of a kind of quiet bearing steel ball required according to right 1, it is characterised in that strengthening machine cylinder rotating speed 16 ~ 17 revs/min, Speed of Reaction Wheels 450 ~ 550 revs/min, enhanced time 2 ~ 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610386733.2A CN106011416A (en) | 2016-06-05 | 2016-06-05 | Surface strengthening process for mute bearing steel balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610386733.2A CN106011416A (en) | 2016-06-05 | 2016-06-05 | Surface strengthening process for mute bearing steel balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106011416A true CN106011416A (en) | 2016-10-12 |
Family
ID=57089567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610386733.2A Pending CN106011416A (en) | 2016-06-05 | 2016-06-05 | Surface strengthening process for mute bearing steel balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106011416A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398993A (en) * | 2002-08-16 | 2003-02-26 | 万向钱潮股份有限公司 | Bearing steel ball surface reinforcing process |
| CN101343681A (en) * | 2008-08-26 | 2009-01-14 | 江苏力星钢球有限公司 | Steel sphere surface peening technique |
| CN202658193U (en) * | 2012-07-18 | 2013-01-09 | 浦江中宝钢球有限公司 | Strengthening machine for surface of steel ball |
| CN202925067U (en) * | 2012-11-30 | 2013-05-08 | 山东东阿钢球集团有限公司 | Steel ball surface-strengthening machine |
| CN104972273A (en) * | 2015-06-04 | 2015-10-14 | 无锡市飞云球业有限公司 | Production process for precise high-speed mute bearing steel ball |
-
2016
- 2016-06-05 CN CN201610386733.2A patent/CN106011416A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398993A (en) * | 2002-08-16 | 2003-02-26 | 万向钱潮股份有限公司 | Bearing steel ball surface reinforcing process |
| CN101343681A (en) * | 2008-08-26 | 2009-01-14 | 江苏力星钢球有限公司 | Steel sphere surface peening technique |
| CN202658193U (en) * | 2012-07-18 | 2013-01-09 | 浦江中宝钢球有限公司 | Strengthening machine for surface of steel ball |
| CN202925067U (en) * | 2012-11-30 | 2013-05-08 | 山东东阿钢球集团有限公司 | Steel ball surface-strengthening machine |
| CN104972273A (en) * | 2015-06-04 | 2015-10-14 | 无锡市飞云球业有限公司 | Production process for precise high-speed mute bearing steel ball |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20161012 |
|
| WD01 | Invention patent application deemed withdrawn after publication |