CN106392492B - Steel ball production and processing method - Google Patents
Steel ball production and processing method Download PDFInfo
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- CN106392492B CN106392492B CN201611035230.7A CN201611035230A CN106392492B CN 106392492 B CN106392492 B CN 106392492B CN 201611035230 A CN201611035230 A CN 201611035230A CN 106392492 B CN106392492 B CN 106392492B
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- steel ball
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- 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
Abstract
The invention discloses a kind of steel ball production and processing methods, suitable finished wire rod raw material is first chosen, steel ball finished product is obtained after having carried out wire rod aligning, shearing, passivation, annealing, quenching, for the first time tempering, grinding, second of tempering and the processing step of cleaning successively.The cylinder blank obtained after shearing through cleaning mill Passivation Treatment, is allowed and is eliminated the defects of the overlap generated after shearing, avoided and the defects of owe punching occur in subsequent cold-heading by the present invention.In addition compared with existing heat treatment process, the hardness and strength performance of steel ball is all significantly increased, and meets the quality requirement of steel ball.
Description
Technical field
The present invention relates to a kind of metal processing sectors, and in particular to a kind of steel ball production and processing method.
Background technology
Steel ball is important base parts and components, and especially accurate industrial ball plays huge work in the national economic development
With.Under some specific conditions, it is often necessary to the steel ball of special substance, to complete the required function of reaching under varying environment.
Some special substance steel balls are widely used in national economy every field in fact, including 9Cr18,3Cr13 stainless steel, copper,
Aluminium, titanium alloy steel and agate, glass, Ceramic Balls etc..Their popularization and application have not only pushed the development of steel ball production industry,
And also promote the technology development and scientific and technological progress of relevant industries.In current existing steel ball production and processing method, obtain
Steel ball surface quality difference and geometric accuracy it is not high, and the hardness and strength of bearing steel ball qualification are not achieved.
Invention content
In view of the above shortcomings of the prior art, the technical problems to be solved by the invention are：How to provide a kind of steel ball into
Type quality is high, and surface accuracy is high, so as to get steel ball there is the steel ball production and processing method of high rigidity and high intensity.
In order to solve the above-mentioned technical problem, present invention employs following technical solutions：
A kind of steel ball production and processing method, it is characterised in that：Include the following steps：
1）Choose finished product wire feedstock：C mass contents are that 0.15~0.20%, Si mass contents are 0.03~0.10%, Mn
It is 0.015~0.030%, S mass contents is 0.017~0.035% that mass content, which is 0.30~0.90%, P mass contents,；
2）Finished wire rod is subjected to straightening processing by straightener, finished wire rod is then cut into cylinder blank, is connect
It and cylinder blank is put into cleaning mill, the corner on cylinder blank is passivated processing, cold-heading is carried out to it later
Obtain prefabricated steel ball；
3）Prefabricated steel ball is subjected to spheroidizing processing：Prefabricated steel ball is heated to according to the heating speed of 12 DEG C/min
400~450 DEG C, and 0.5~1h is kept the temperature, 850~900 then are heated to prefabricated steel ball according still further to the heating speed of 8 DEG C/min
DEG C, and 3~4h is kept the temperature, it comes out of the stove after being then furnace-cooled to 500 DEG C, then be air-cooled to room temperature；
4）Prefabricated steel ball is subjected to quenching treatment again：Prefabricated steel ball is heated to 800~850 DEG C, and keep the temperature 1h, is reheated
To 970~1020 DEG C, and 2h is kept the temperature, prefabricated steel ball is put into 40~60 DEG C of quenching-in water later to pre-manufactured steel spherical surface temperature
To after 300~350 DEG C, place into 30~50 DEG C of machine oil to taking out after pre-manufactured steel spherical surface temperature to oil temperature；
5）Prefabricated steel ball is subjected to temper again：Prefabricated steel ball is tempered, temperature is 150~200 DEG C, is returned
Fiery medium is oil, and tempering time is 2~3h；
6）Prefabricated steel ball is put into grinder, and add in lapping liquid carry out first time grinding, lapping liquid include oil and
Granularity is less than or equal to 0.1 μm of diamond dust, takes out prefabricated steel ball later and is reentered into grinder, and add in metalworking coolant
It carries out second to grind, finally obtains fine grinding steel ball；
7）Fine grinding steel ball is subjected to double tempering processing：Temperature is 150~200 DEG C, and temper medium is air, tempering
Time is 6~7h；
8）Fine grinding steel ball is cleaned, obtains finished product.
In conclusion the beneficial effects of the present invention are：The present invention is by the cylinder blank obtained after shearing through cleaning mill
Passivation Treatment allows and is eliminated the defects of the overlap generated after shearing, avoids and the defects of owe punching occur in subsequent cold-heading.
In addition compared with existing heat treatment process, the hardness and strength performance of steel ball is all significantly increased, and meets the quality of steel ball
It is required that.
Specific embodiment
The present invention is described in further detail below.
Embodiment 1
Steel ball production and processing method in present embodiment, includes the following steps：
1）Choose finished product wire feedstock：C mass contents are that 0.15%, Si mass contents are that 0.03%, Mn mass contents are
0.30%, P mass content are that 0.015%, S mass contents are 0.017%；
2）Finished wire rod is subjected to straightening processing by straightener, finished wire rod is then cut into cylinder blank, is connect
It and cylinder blank is put into cleaning mill, the corner on cylinder blank is passivated processing, cold-heading is carried out to it later
Obtain prefabricated steel ball；
3）Prefabricated steel ball is subjected to spheroidizing processing：Prefabricated steel ball is heated to according to the heating speed of 12 DEG C/min
400 DEG C, and 0.5h is kept the temperature, then 850 DEG C are heated to prefabricated steel ball, and keep the temperature 3h according still further to the heating speed of 8 DEG C/min, connect
It and comes out of the stove, then be air-cooled to room temperature after being furnace-cooled to 500 DEG C；
4）Prefabricated steel ball is subjected to quenching treatment again：Prefabricated steel ball is heated to 800 DEG C, and keep the temperature 1h, is again heated to 970
DEG C, and 2h is kept the temperature, prefabricated steel ball is put into 40 DEG C of quenching-in water later to pre-manufactured steel spherical surface temperature to after 300 DEG C, then put
Enter in 30 DEG C of machine oil to taking out after pre-manufactured steel spherical surface temperature to oil temperature；
5）Prefabricated steel ball is subjected to temper again：Prefabricated steel ball is tempered, temperature is 150 DEG C, and tempering is situated between
Matter is oily, tempering time 2h；
6）Prefabricated steel ball is put into grinder, and add in lapping liquid carry out first time grinding, lapping liquid include oil and
Granularity is less than or equal to 0.1 μm of diamond dust, takes out prefabricated steel ball later and is reentered into grinder, and add in metalworking coolant
It carries out second to grind, finally obtains fine grinding steel ball；
7）Fine grinding steel ball is subjected to double tempering processing：Temperature is 150 DEG C, and temper medium is air, tempering time
For 6h；
8）Fine grinding steel ball is cleaned, obtains finished product.
Embodiment 2
Steel ball production and processing method in present embodiment, includes the following steps：
1）Choose finished product wire feedstock：C mass contents are that 0.20%, Si mass contents are that 0.10%, Mn mass contents are
0.90%, P mass content are that 0.030%, S mass contents are 0.035%；
2）Finished wire rod is subjected to straightening processing by straightener, finished wire rod is then cut into cylinder blank, is connect
It and cylinder blank is put into cleaning mill, the corner on cylinder blank is passivated processing, cold-heading is carried out to it later
Obtain prefabricated steel ball；
3）Prefabricated steel ball is subjected to spheroidizing processing：Prefabricated steel ball is heated to according to the heating speed of 12 DEG C/min
450 DEG C, and 1h is kept the temperature, then 900 DEG C are heated to prefabricated steel ball, and keep the temperature 4h according still further to the heating speed of 8 DEG C/min, then
It comes out of the stove after being furnace-cooled to 500 DEG C, then is air-cooled to room temperature；
4）Prefabricated steel ball is subjected to quenching treatment again：Prefabricated steel ball is heated to 850 DEG C, and keep the temperature 1h, is again heated to
1020 DEG C, and keep the temperature 2h, prefabricated steel ball is put into 60 DEG C of quenching-in water later to pre-manufactured steel spherical surface temperature to after 350 DEG C,
It places into 50 DEG C of machine oil to taking out after pre-manufactured steel spherical surface temperature to oil temperature；
5）Prefabricated steel ball is subjected to temper again：Prefabricated steel ball is tempered, temperature is 200 DEG C, and tempering is situated between
Matter is oily, tempering time 3h；
6）Prefabricated steel ball is put into grinder, and add in lapping liquid carry out first time grinding, lapping liquid include oil and
Granularity is less than or equal to 0.1 μm of diamond dust, takes out prefabricated steel ball later and is reentered into grinder, and add in metalworking coolant
It carries out second to grind, finally obtains fine grinding steel ball；
7）Fine grinding steel ball is subjected to double tempering processing：Temperature is 200 DEG C, and temper medium is air, tempering time
For h；
8）Fine grinding steel ball is cleaned, obtains finished product.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although passing through ginseng
According to the preferred embodiment of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
Various changes are made to it in the form and details, the present invention that is limited without departing from the appended claims
Spirit and scope.
Claims (1)
1. a kind of steel ball production and processing method, it is characterised in that：Include the following steps：
1）Choose finished product wire feedstock：C mass contents are that 0.15~0.20%, Si mass contents are 0.03~0.10%, Mn mass
It is 0.015~0.030%, S mass contents is 0.017~0.035% that content, which is 0.30~0.90%, P mass contents,；
2）Finished wire rod is subjected to straightening processing by straightener, finished wire rod is then cut into cylinder blank, then will
Cylinder blank is put into cleaning mill, and the corner on cylinder blank is passivated processing, and carrying out cold-heading to it later obtains
Prefabricated steel ball；
3）Prefabricated steel ball is subjected to spheroidizing processing：400 are heated to prefabricated steel ball according to the heating speed of 12 DEG C/min~
450 DEG C, and 0.5~1h is kept the temperature, then 850~900 DEG C are heated to prefabricated steel ball according still further to the heating speed of 8 DEG C/min, and
3~4h is kept the temperature, is come out of the stove after being then furnace-cooled to 500 DEG C, then be air-cooled to room temperature；
4）Prefabricated steel ball is subjected to quenching treatment again：Prefabricated steel ball is heated to 800~850 DEG C, and keep the temperature 1h, is again heated to
970~1020 DEG C, and keep the temperature 2h, prefabricated steel ball is put into 40~60 DEG C of quenching-in water later to pre-manufactured steel spherical surface temperature extremely
After 300~350 DEG C, place into 30~50 DEG C of machine oil to taking out after pre-manufactured steel spherical surface temperature to oil temperature；
5）Prefabricated steel ball is subjected to temper again：Prefabricated steel ball is tempered, temperature is 150~200 DEG C, and tempering is situated between
Matter is oil, and tempering time is 2~3h；
6）Prefabricated steel ball is put into grinder, and adds in lapping liquid and carries out first time grinding, lapping liquid includes oil and granularity
Diamond dust less than or equal to 0.1 μm takes out prefabricated steel ball and is reentered into grinder later, and adds in metalworking coolant progress
Second of grinding, finally obtains fine grinding steel ball；
7）Fine grinding steel ball is subjected to double tempering processing：Temperature is 150~200 DEG C, and temper medium is air, tempering time
For 6~7h；
8）Fine grinding steel ball is cleaned, obtains finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035230.7A CN106392492B (en) | 2016-11-23 | 2016-11-23 | Steel ball production and processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035230.7A CN106392492B (en) | 2016-11-23 | 2016-11-23 | Steel ball production and processing method |
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| CN106392492A CN106392492A (en) | 2017-02-15 |
| CN106392492B true CN106392492B (en) | 2018-06-15 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186447A (en) * | 2017-07-15 | 2017-09-22 | 芜湖市宇恒特种钢球有限公司 | A kind of processing method of bearing steel ball |
| CN109082518B (en) * | 2018-09-19 | 2019-12-06 | 铜陵市明诚铸造有限责任公司 | Annealing cooling device for hot rolling steel ball |
| CN110303304B (en) * | 2019-07-23 | 2022-03-15 | 重庆申耀机械工业有限责任公司 | Processing technique of roller |
| CN110977346A (en) * | 2019-12-10 | 2020-04-10 | 苏州工业园区科海机电工程有限公司 | Steel product processing technology |
| CN112059542A (en) * | 2020-08-19 | 2020-12-11 | 云南昆钢耐磨材料科技股份有限公司 | Production process of high-carbon microalloyed steel ball |
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| JPH0783232A (en) * | 1993-09-20 | 1995-03-28 | Nippon Seiko Kk | Manufacture of ball for ball bearing |
| EP1270142A2 (en) * | 2001-06-28 | 2003-01-02 | Koyo Seiko Co., Ltd. | Manufacturing method of steel ball for rolling bearing |
| CN101185955A (en) * | 2007-12-21 | 2008-05-28 | 江南大学 | Steel ball cold heading technique and steel ball cold header |
| CN101186005A (en) * | 2007-11-30 | 2008-05-28 | 洛阳轴研科技股份有限公司 | Processing technique of 9Cr18 stainless steel capable of being improved to G3 level |
| CN101724742A (en) * | 2008-10-22 | 2010-06-09 | 洛阳轴研科技股份有限公司 | Heat treatment process of notch ductile steel bearing balls |
| CN102252024A (en) * | 2011-02-14 | 2011-11-23 | 江苏力星通用钢球股份有限公司 | Steel ball special for third-age hub bearing for luxury cars |
| 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 |
| 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 |
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2016
- 2016-11-23 CN CN201611035230.7A patent/CN106392492B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0783232A (en) * | 1993-09-20 | 1995-03-28 | Nippon Seiko Kk | Manufacture of ball for ball bearing |
| EP1270142A2 (en) * | 2001-06-28 | 2003-01-02 | Koyo Seiko Co., Ltd. | Manufacturing method of steel ball for rolling bearing |
| CN101186005A (en) * | 2007-11-30 | 2008-05-28 | 洛阳轴研科技股份有限公司 | Processing technique of 9Cr18 stainless steel capable of being improved to G3 level |
| CN101185955A (en) * | 2007-12-21 | 2008-05-28 | 江南大学 | Steel ball cold heading technique and steel ball cold header |
| CN101724742A (en) * | 2008-10-22 | 2010-06-09 | 洛阳轴研科技股份有限公司 | Heat treatment process of notch ductile steel bearing balls |
| CN102252024A (en) * | 2011-02-14 | 2011-11-23 | 江苏力星通用钢球股份有限公司 | Steel ball special for third-age hub bearing for luxury cars |
| 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 |
| 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 |
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| CN106392492A (en) | 2017-02-15 |
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