CN110202087A - High strength steel ball processing technique - Google Patents
High strength steel ball processing technique Download PDFInfo
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- CN110202087A CN110202087A CN201910634656.1A CN201910634656A CN110202087A CN 110202087 A CN110202087 A CN 110202087A CN 201910634656 A CN201910634656 A CN 201910634656A CN 110202087 A CN110202087 A CN 110202087A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/02—Making machine elements balls, rolls, or rollers, e.g. for bearings
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- 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
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
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- Chemical & Material Sciences (AREA)
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- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Present invention discloses a kind of high strength steel ball processing techniques, include the following steps: S1, blanking, select using wire feedstock, carry out cutting process to wire feedstock and obtain steel ball embryo material；S2, first molding carry out fine abrasive at the beginning of preliminary processing and forming obtains steel ball to steel ball embryo material obtained；S3, heat treatment carry out heat treatment process to fine abrasive at the beginning of steel ball obtained and obtain steel ball semi-finished product；S4, post forming carry out post-forming process to steel ball semi-finished product and obtain steel ball product；S5, product, carry out polished and cleaned and product testing to steel ball product, and to detection, qualified steel ball product carries out packaging product.Processing process of the invention, standardization level are high, and integrated operation process is clear, have not only saved the time cost of steel ball manufacturing enterprise, but also significant the breakage rate for reducing steel ball product, ensure that the profit margin of steel ball manufacturing enterprise.
Description
Technical field
The present invention relates to a kind of production method of steel ball more particularly to a kind of high strength steel ball processing techniques, belong to metal
Processing technique field.
Background technique
Steel ball is a kind of important base parts and components, and huge effect is played during industrial production.Steel ball because
The difference of its material and various variety classes can be divided into, at present common steel ball material include 9Cr18 stainless steel,
3Cr13 stainless steel, copper, aluminium, titanium alloy steel and agate, glass, ceramics etc., the popularization and application of these steel balls not only pushes
The development of steel ball production industry, and also promote the technology development and scientific and technological progress of relevant industries.
For the steel ball processing of metal material, it is generally the case that the processing method of this kind of steel ball include blanking, cold-heading,
Heat treatment, grinding and cleaning and etc., in actual process of manufacture, the production method of each steel ball manufacturing enterprise, life
Step is produced to be substantially the same but not fully consistent, the procedure of processings of even same steel ball manufacturing enterprise different periods there is also
Subtle variation, the production and processing of steel ball lack operating method and the technological guidance of regulation and standardization.
Under such technical background, the steel ball that current each steel ball manufacturing enterprise is produced more or less all there is with
Under several aspects deficiency: first, breakage rate is high for steel ball, and during product testing, breakage rate is high for steel ball in 1%
Situation happens occasionally, this greatly affected the product of steel ball manufacturing enterprise, directly results in the increase of production cost.Second,
The surface hardness and low strength of steel ball；Since the intensity of steel ball directly determines the suitable environment of this steel ball, and the surface of steel ball
Hardness directly affects the frictional dissipation in steel ball use process, and therefore, this defect also will result directly in final steel ball product
Qualification rate and yields it is relatively low.
In conclusion how to propose a kind of completely new processing technology for steel ball, standardization, the sequencing of operating process are realized,
The quality of processed steel ball finished product is promoted, those skilled in that art institute urgent problem to be solved is also just become.
Summary of the invention
In view of the prior art, there are drawbacks described above, and the purpose of the present invention is to propose to a kind of for manufacturing adding for high-intensitive steel ball
Work technique, it is specific as follows.
A kind of high strength steel ball processing technique, includes the following steps:
S1, blanking, are selected using wire feedstock, are carried out cutting processing to the wire feedstock, are obtained steel ball embryo material；
S2, first molding, fine abrasive at the beginning of carrying out preliminary processing and forming to the steel ball embryo material obtained, obtain steel ball；
S3, heat treatment, at the beginning of the steel ball obtained fine abrasive carry out heat treatment process, the heat treatment process include sequentially into
Capable heating, quenching, tempering and cooling, finally obtains steel ball semi-finished product；
S4, post forming carry out post-forming process to the steel ball semi-finished product obtained, finally obtain steel ball product；
S5, product carry out polished and cleaned and product testing to the steel ball product that processing obtains, to described in detection qualification
Steel ball product carries out packaging product, the steel ball product not qualified to detection carries out reprocessing processing.
Preferably, the wire feedstock is 440C type stainless steel.
Preferably, blanking step described in S1 specifically includes:
Selecting the diameter using wire feedstock, according to the wire feedstock selected selects corresponding cutting technique to described
Wire feedstock carries out cutting processing；
When the diameter of the wire feedstock be less than 50mm when, using cold-heading mode to the wire feedstock carry out cutting processing,
Obtain steel ball embryo material；
When the diameter of the wire feedstock is greater than 50mm, the wire feedstock is cut using the mode of hot upsetting or Wen Dun
It processes, obtain steel ball embryo material.
Preferably, first forming step described in S2 specifically includes:
S21, photosphere grind the steel ball embryo material using rounding machine, and the grinding pressure of rounding machine described in this step is set
It is set to 10Mpa ~ 30Mpa, lathe revolving speed is set as 60r/min ~ 120r/min, and milling time is 6h ~ 8h；
S22, abrading-ball, fine abrasive at the beginning of being ground to the steel ball embryo material for having been subjected to photosphere grinding using rounding machine, obtain the steel ball,
The grinding pressure of rounding machine described in this step is set as 30Mpa ~ 80Mpa, and lathe revolving speed is set as 60r/min ~ 120r/min,
Milling time is 12h ~ 16h.
Preferably, heat treatment step described in S3 specifically includes:
S31, heating will be heated to 1030 DEG C ~ 1040 DEG C in fine abrasive investment heating furnace at the beginning of the steel ball；
S32, quenching carry out fine abrasive investment temperature at the beginning of the steel ball by precooling in 65 DEG C ~ 75 DEG C of hardening media
Quenching；
S33, tempering, fine abrasive investment temperature at the beginning of the steel ball of quenching being completed be in 150 DEG C ~ 250 DEG C of temper medium into
Row tempering, tempering time are 2h ~ 3h；
Fine abrasive at the beginning of the steel ball by tempering is taken out simultaneously cooled to room temperature by S34, cooling from the temper medium,
Finally obtain steel ball semi-finished product.
Preferably, the hardening media in quenching Step described in S32 and the tempering in tempering step described in S33
Medium is identical, is quenching oil.
It preferably, further include chemical cleaning step between post forming step described in the heat treatment step described in S3 and S4
Suddenly, the chemical cleaning step specifically includes:
Carry out pickling in the acid solution for being 5.5 ~ 6.5 by steel ball semi-finished product investment pH value, pickling time be 5min ~
10min；
Carry out pickling in the acid solution for being again 4.5 ~ 5.5 by steel ball semi-finished product investment pH value, pickling time be 3min ~
5min；
Carry out pickling in the acid solution for being then 3.5 ~ 4.5 by steel ball semi-finished product investment pH value, pickling time be 1min ~
2min；
Finally the steel ball semi-finished product are rinsed using high pressure water flow, and are spontaneously dried.
Preferably, post forming step described in S4 specifically includes:
Lappingout grinds the steel ball semi-finished product using rounding machine, the grinding pressure setting of rounding machine described in this step
For 20Mpa ~ 30Mpa, lathe revolving speed is set as 15r/min ~ 40r/min, and milling time is 16h ~ 20h.
Preferably, product step described in S5 specifically includes:
S51, polishing cleaning, are processed by shot blasting the steel ball product, then using air-cooler to after polishing treatment
The steel ball product carries out wind bath processing, and the temperature of the air-cooler is set as 10 DEG C ~ 20 DEG C, the wind speed setting of the air-cooler
For 5m/s ~ 10m/s, removes the impurity of the steel ball product surface and be cooled to room temperature the steel ball product；
S52, detection packaging carry out product testing to the clean steel ball product of polishing is had been subjected to, and detection project includes partial size
Detection, roundness measurement and surface smoothness detection, any one of detection it is unqualified be product testing it is unqualified, then
It will test the qualified steel ball product and measured and entered bag packaging, will test the underproof steel ball product and send S2 back to
Reprocessing processing is carried out in the first forming step.
Compared with prior art, advantages of the present invention is mainly reflected in the following aspects:
A kind of processing technology of high-intensitive steel ball of the present invention, procedure, standardization level are high, and integrated operation process is bright
Really, not only shortened on to greatest extent in processing enterprise the upper hand time of technical staff, saved steel ball manufacturing enterprise when
Between cost, and significant the breakage rate for reducing steel ball product controls the production cost of steel ball manufacturing enterprise, ensure that
The profit margin of steel ball manufacturing enterprise.
Meanwhile in processing technology of the invention, the controllable degree of whole process is high, is effectively guaranteed processed
The quality of the safety and steel ball product itself of personnel and environment in journey has very high application and promotional value.
The steel ball product that processing technology through the invention is processed has many advantages, such as that surface hardness is high, intensity is high, energy
The use demand for enough meeting most of industrial production enterprises, the large-scale promotion for being very suitable for each manufacturing enterprise use.
It, can be as in addition, processing technology of the invention also provides reference for other relevant issues in same domain
According to expansion extension is carried out, apply in the technical solution of other intermetallic composite coating productions same domain Nei, has very wide
Application prospect.
Just the embodiment of the present invention is described in further detail below, so that technical solution of the present invention is easier to manage
Solution is grasped.
Specific embodiment
Present invention discloses a kind of for manufacturing the processing technology of high-intensitive steel ball, includes the following steps:
S1, blanking, are selected using wire feedstock, are carried out cutting processing to the wire feedstock, are obtained steel ball embryo material.
Specifically, needing to select in the blanking step described in S1 using wire feedstock, wire rod described in the present embodiment is former
Material is 440C type stainless steel.Then select corresponding cutting technique to described according to the diameter for the wire feedstock selected
Wire feedstock carries out cutting processing；The diameter of the wire feedstock is using 50mm as boundary.
When the diameter of the wire feedstock is less than 50mm, cutting is carried out to the wire feedstock using the mode of cold-heading and is added
Work obtains steel ball embryo material；
When the diameter of the wire feedstock is greater than 50mm, the wire feedstock is cut using the mode of hot upsetting or Wen Dun
It processes, obtain steel ball embryo material.
S2, first molding, fine abrasive at the beginning of carrying out preliminary processing and forming to the steel ball embryo material obtained, obtain steel ball.
Specifically, first forming step described in S2 includes,
S21, photosphere grind the steel ball embryo material using rounding machine, and the grinding pressure of rounding machine described in this step is set
It is set to 10Mpa ~ 30Mpa, lathe revolving speed is set as 60r/min ~ 120r/min, and milling time is 6h ~ 8h；
S22, abrading-ball, fine abrasive at the beginning of being ground to the steel ball embryo material for having been subjected to photosphere grinding using rounding machine, obtain the steel ball,
The grinding pressure of rounding machine described in this step is set as 30Mpa ~ 80Mpa, and lathe revolving speed is set as 60r/min ~ 120r/min,
Milling time is 12h ~ 16h.
S3, heat treatment carry out heat treatment process to fine abrasive at the beginning of the steel ball obtained, and the heat treatment process includes pressing
Heating, quenching, tempering and the cooling that sequence carries out, finally obtain steel ball semi-finished product.
Specifically, heat treatment step described in S3 includes,
S31, heating will be heated to 1030 DEG C ~ 1040 DEG C in fine abrasive investment heating furnace at the beginning of the steel ball；
S32, quenching carry out fine abrasive investment temperature at the beginning of the steel ball by precooling in 65 DEG C ~ 75 DEG C of hardening media
Quenching；
S33, tempering, fine abrasive investment temperature at the beginning of the steel ball of quenching being completed be in 150 DEG C ~ 250 DEG C of temper medium into
Row tempering, tempering time are 2h ~ 3h；
Fine abrasive at the beginning of the steel ball by tempering is taken out simultaneously cooled to room temperature by S34, cooling from the temper medium,
Finally obtain steel ball semi-finished product.
It should be noted that the hardening media in quenching Step described in S32 with it is described in tempering step described in S33
Temper medium is identical, both for quenching oil.
S4, post forming carry out post-forming process to the steel ball semi-finished product obtained, finally obtain steel ball production
Product.
Specifically, post forming step described in S4 includes,
Lappingout grinds the steel ball semi-finished product using rounding machine, the grinding pressure setting of rounding machine described in this step
For 20Mpa ~ 30Mpa, lathe revolving speed is set as 15r/min ~ 40r/min, and milling time is 16h ~ 20h.
S5, product carry out polished and cleaned and product testing to the steel ball product that processing obtains, qualified to detection
The steel ball product carries out packaging product, the steel ball product not qualified to detection carries out reprocessing processing.
Specifically, product step described in S5 includes,
S51, polishing cleaning, are processed by shot blasting the steel ball product, then using air-cooler to after polishing treatment
The steel ball product carries out wind bath processing, and the temperature of the air-cooler is set as 10 DEG C ~ 20 DEG C, the wind speed setting of the air-cooler
For 5m/s ~ 10m/s, removes the impurity of the steel ball product surface and be cooled to room temperature the steel ball product；
S52, detection packaging carry out product testing to the clean steel ball product of polishing is had been subjected to, and detection project includes partial size
Detection, roundness measurement and surface smoothness detection, any one of detection it is unqualified be product testing it is unqualified, then
It will test the qualified steel ball product and measured and entered bag packaging, will test the underproof steel ball product and send S2 back to
Reprocessing processing is carried out in the first forming step.
Furthermore, it is necessary to supplement, in the inventive solutions, the heat treatment step described in S3 with it is secondary described in S4
Further include a chemical cleaning step between forming step, the chemical cleaning step specifically includes:
Carry out pickling in the acid solution for being 5.5 ~ 6.5 by steel ball semi-finished product investment pH value, pickling time be 5min ~
10min；
Carry out pickling in the acid solution for being again 4.5 ~ 5.5 by steel ball semi-finished product investment pH value, pickling time be 3min ~
5min；
Carry out pickling in the acid solution for being then 3.5 ~ 4.5 by steel ball semi-finished product investment pH value, pickling time be 1min ~
2min；
Finally the steel ball semi-finished product are rinsed using high pressure water flow, and are spontaneously dried.
In conclusion a kind of processing technology of high-intensitive steel ball of the present invention, procedure, standardization level are high, whole
Body operating process is clear, and the upper hand time of technical staff in processing enterprise was not only shortened on to greatest extent, has saved steel ball
The time cost of manufacturing enterprise, and significant the breakage rate for reducing steel ball product, control the life of steel ball manufacturing enterprise
Cost is produced, ensure that the profit margin of steel ball manufacturing enterprise.
Meanwhile in processing technology of the invention, the controllable degree of whole process is high, is effectively guaranteed processed
The quality of the safety and steel ball product itself of personnel and environment in journey has very high application and promotional value.
The steel ball product that processing technology through the invention is processed has many advantages, such as that surface hardness is high, intensity is high, energy
The use demand for enough meeting most of industrial production enterprises, the large-scale promotion for being very suitable for each manufacturing enterprise use.
It, can be as in addition, processing technology of the invention also provides reference for other relevant issues in same domain
According to expansion extension is carried out, apply in the technical solution of other intermetallic composite coating productions same domain Nei, has very wide
Application prospect.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit and essential characteristics of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of high strength steel ball processing technique, which comprises the steps of:
S1, blanking, are selected using wire feedstock, are carried out cutting processing to the wire feedstock, are obtained steel ball embryo material；
S2, first molding, fine abrasive at the beginning of carrying out preliminary processing and forming to the steel ball embryo material obtained, obtain steel ball；
S3, heat treatment, at the beginning of the steel ball obtained fine abrasive carry out heat treatment process, the heat treatment process include sequentially into
Capable heating, quenching, tempering and cooling, finally obtains steel ball semi-finished product；
S4, post forming carry out post-forming process to the steel ball semi-finished product obtained, finally obtain steel ball product；
S5, product carry out polished and cleaned and product testing to the steel ball product that processing obtains, to described in detection qualification
Steel ball product carries out packaging product, the steel ball product not qualified to detection carries out reprocessing processing.
2. high strength steel ball processing technique according to claim 1, it is characterised in that；The wire feedstock be 440C type not
Become rusty steel.
3. high strength steel ball processing technique according to claim 1, which is characterized in that blanking step described in S1 is specifically wrapped
It includes:
Selecting the diameter using wire feedstock, according to the wire feedstock selected selects corresponding cutting technique to described
Wire feedstock carries out cutting processing；
When the diameter of the wire feedstock be less than 50mm when, using cold-heading mode to the wire feedstock carry out cutting processing,
Obtain steel ball embryo material；
When the diameter of the wire feedstock is greater than 50mm, the wire feedstock is cut using the mode of hot upsetting or Wen Dun
It processes, obtain steel ball embryo material.
4. high strength steel ball processing technique according to claim 1, which is characterized in that first forming step described in S2 is specific
Include:
S21, photosphere grind the steel ball embryo material using rounding machine, and the grinding pressure of rounding machine described in this step is set
It is set to 10Mpa ~ 30Mpa, lathe revolving speed is set as 60r/min ~ 120r/min, and milling time is 6h ~ 8h；
S22, abrading-ball, fine abrasive at the beginning of being ground to the steel ball embryo material for having been subjected to photosphere grinding using rounding machine, obtain the steel ball,
The grinding pressure of rounding machine described in this step is set as 30Mpa ~ 80Mpa, and lathe revolving speed is set as 60r/min ~ 120r/min,
Milling time is 12h ~ 16h.
5. high strength steel ball processing technique according to claim 1, which is characterized in that heat treatment step described in S3 specifically wraps
It includes:
S31, heating will be heated to 1030 DEG C ~ 1040 DEG C in fine abrasive investment heating furnace at the beginning of the steel ball；
S32, quenching carry out fine abrasive investment temperature at the beginning of the steel ball by precooling in 65 DEG C ~ 75 DEG C of hardening media
Quenching；
S33, tempering, fine abrasive investment temperature at the beginning of the steel ball of quenching being completed be in 150 DEG C ~ 250 DEG C of temper medium into
Row tempering, tempering time are 2h ~ 3h；
Fine abrasive at the beginning of the steel ball by tempering is taken out simultaneously cooled to room temperature by S34, cooling from the temper medium,
Finally obtain steel ball semi-finished product.
6. high strength steel ball processing technique according to claim 4, it is characterised in that: the institute in quenching Step described in S32
It is identical as the temper medium in tempering step described in S33 to state hardening media, is quenching oil.
7. high strength steel ball processing technique according to claim 1, which is characterized in that the heat treatment step described in S3 and S4
Further include a chemical cleaning step between the post forming step, the chemical cleaning step specifically includes:
Carry out pickling in the acid solution for being 5.5 ~ 6.5 by steel ball semi-finished product investment pH value, pickling time be 5min ~
10min；
Carry out pickling in the acid solution for being again 4.5 ~ 5.5 by steel ball semi-finished product investment pH value, pickling time be 3min ~
5min；
Carry out pickling in the acid solution for being then 3.5 ~ 4.5 by steel ball semi-finished product investment pH value, pickling time be 1min ~
2min；
Finally the steel ball semi-finished product are rinsed using high pressure water flow, and are spontaneously dried.
8. high strength steel ball processing technique according to claim 1, which is characterized in that post forming step described in S4 is specific
Include:
Lappingout grinds the steel ball semi-finished product using rounding machine, the grinding pressure setting of rounding machine described in this step
For 20Mpa ~ 30Mpa, lathe revolving speed is set as 15r/min ~ 40r/min, and milling time is 16h ~ 20h.
9. high strength steel ball processing technique according to claim 1, which is characterized in that product step described in S5 is specifically wrapped
It includes:
S51, polishing cleaning, are processed by shot blasting the steel ball product, then using air-cooler to after polishing treatment
The steel ball product carries out wind bath processing, and the temperature of the air-cooler is set as 10 DEG C ~ 20 DEG C, the wind speed setting of the air-cooler
For 5m/s ~ 10m/s, removes the impurity of the steel ball product surface and be cooled to room temperature the steel ball product；
S52, detection packaging carry out product testing to the clean steel ball product of polishing is had been subjected to, and detection project includes partial size
Detection, roundness measurement and surface smoothness detection, any one of detection it is unqualified be product testing it is unqualified, then
It will test the qualified steel ball product and measured and entered bag packaging, will test the underproof steel ball product and send S2 back to
Reprocessing processing is carried out in the first forming step.
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| CN201910634656.1A CN110202087A (en) | 2019-07-15 | 2019-07-15 | High strength steel ball processing technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113957339A (en) * | 2021-10-09 | 2022-01-21 | 深圳市我要模材科技有限公司 | High-strength steel block processing technology |
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| CN103614528A (en) * | 2013-12-12 | 2014-03-05 | 攀枝花钢城集团瑞矿工业有限公司 | Forging method of producing steel balls with phi 150-180mm by adopting round steel with phi 110mm |
| JP2018040482A (en) * | 2016-09-09 | 2018-03-15 | 新日鐵住金株式会社 | Raceway surface manufacturing method of thrust type ball bearing |
| CN109483176A (en) * | 2018-12-22 | 2019-03-19 | 南通市精艺钢球有限公司 | A kind of manufacturing process of high-speed precision bearing steel ball |
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2019
- 2019-07-15 CN CN201910634656.1A patent/CN110202087A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614528A (en) * | 2013-12-12 | 2014-03-05 | 攀枝花钢城集团瑞矿工业有限公司 | Forging method of producing steel balls with phi 150-180mm by adopting round steel with phi 110mm |
| JP2018040482A (en) * | 2016-09-09 | 2018-03-15 | 新日鐵住金株式会社 | Raceway surface manufacturing method of thrust type ball bearing |
| CN109483176A (en) * | 2018-12-22 | 2019-03-19 | 南通市精艺钢球有限公司 | A kind of manufacturing process of high-speed precision bearing steel ball |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113957339A (en) * | 2021-10-09 | 2022-01-21 | 深圳市我要模材科技有限公司 | High-strength steel block processing technology |
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