CN106735265A - Method for processing steel ball - Google Patents
Method for processing steel ball Download PDFInfo
- Publication number
- CN106735265A CN106735265A CN201611010266.XA CN201611010266A CN106735265A CN 106735265 A CN106735265 A CN 106735265A CN 201611010266 A CN201611010266 A CN 201611010266A CN 106735265 A CN106735265 A CN 106735265A
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- China
- Prior art keywords
- steel ball
- pickling
- blank
- shot
- induction coil
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a kind of method for processing steel ball, comprise the following steps：Finished wire rod is cut, blank is obtained；Blank is put into the Medium frequency induction coil being powered and it is heated, coolant is placed in the lower section of Medium frequency induction coil, after after blank fusing, cut off the power supply of Medium frequency induction coil, the blank after fusing is dropped and cooled down into coolant, obtain shot；Shot is heated into 150~250 DEG C to be tempered；The shot that will be obtained is put into the solution that concentration of hydrochloric acid is 15~25%, and pickling time is 10~15 minutes, is rinsed using water under high pressure after pickling, and is dried；The shot that will be obtained is put into steel ball lapping machine and is refined, and obtains steel ball；The steel ball that will be obtained is heated to 130~230 DEG C and is annealed；Polished and cleaned.Technological method for processing of the present invention is simple, and the steel ball quality obtained after processing is high, and various aspects of performance is obviously improved, and service life is also significantly increased.
Description
Technical field
The present invention relates to a kind of metal processing sectors, and in particular to a kind of method for processing steel ball.
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 which the steel ball of special substance completes 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 promoted steel ball to produce the development of industry,
And also promote the technology development and scientific and technological progress of relevant industries.
The processing method of usual steel ball includes the step of blanking, cold-heading, heat treatment, grinding and cleaning, in blanking process,
The instrument selection of shearing is improper, easily deforms blank excessive, in cold-heading metal can not be made to be completely filled with mould, causes to owe
Punching.Blank excessive high hardness or diameter are excessive, easily scratch mold working surface, reduce the mold use life-span.Exist in addition
The circular gap of cutting implement is too small during shearing, causes blank end face to produce burr, and in cold-heading, burr is pressed into cold-heading part table
Face easily forms volume punching.These problems can all have influence on the quality of steel ball shaping, there is to be solved.
The content of the invention
For above-mentioned the deficiencies in the prior art, the technical problems to be solved by the invention are：How a kind of processing side is provided
Method is simple, steel ball Forming Quality method for processing steel ball high.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of method for processing steel ball, it is characterised in that：Comprise the following steps：
1）Blanking：Finished wire rod is cut, blank is obtained：
2）Pre-profiling：Blank is put into the Medium frequency induction coil being powered and it is heated, under Medium frequency induction coil
Coolant is placed by side, after after blank fusing, cuts off the power supply of Medium frequency induction coil, the blank after fusing is dropped and enters coolant
Cooled down, obtained shot；
3）Tempering：Shot is heated into 150~250 DEG C to be tempered；
4）Pickling：By step 3）The shot for obtaining is put into the solution that concentration of hydrochloric acid is 15~25%, and pickling time is 10~15
Minute, it is rinsed using water under high pressure after pickling, and dry：
5）Fine grinding：By step 4）The shot for obtaining is put into steel ball lapping machine and is refined, and obtains steel ball；
6）Stress relief annealing：By step 5）The steel ball for obtaining is heated to 130~230 DEG C and is annealed；
7）Polished and cleaned.
In the present invention, after wire rod is cut, it is directly placed into the Medium frequency induction coil after being powered, in Medium frequency induction coil
It is passed through alternating current, then Medium frequency induction coil just produces alternating magnetic field, blank will be suspended in the presence of alternating magnetic field
In Medium frequency induction coil.Simultaneously because the blank in the middle of Medium frequency induction coil can be equivalent closing into a circle circle in circumferencial direction
Circuit is closed, the magnetic flux in closed circuit is constantly changing, so the circumferencial direction in blank can produce induced electromotive force
And induced-current, sense of current turn-takes along the circumferencial direction of blank, forms vortex phenomenon, and the vortex inside blank can produce heat
Amount, and then melt blank heating.Blank is suspended in the middle of Medium frequency induction coil under the influence of a magnetic field, and class ball is formed after fusing
Shape, after Medium frequency induction coil is cut off the electricity supply, the blank after fusing directly fall into lower section coolant in cooling shaping, arrive to
Shot.Relative to the mode of traditional cold-heading, pre-profiling treatment is carried out to blank using Medium frequency induction coil, blank can be overcome to exist
The defect produced during cold-heading, it is to avoid cause the decline of later stage steel ball Forming Quality, its processing method is simple, after steel ball shaping
Quality it is high.
As optimization, step 6）In annealing temperature than step 3）In temperature it is low 20~30 DEG C.Drop can be avoided
The hardness and mechanical property of low steel ball.
As optimization, step 4）In, shot is put into three pickling tubes successively carries out pickling, the hydrochloric acid in three pickling tubes
Concentration is incremented by successively, and pickling time in three pickling tubes successively decreases successively.Shot entering step by step in three pickling tubes
Row pickling, can not only improve the quality of pickling, prevent shot pickling insufficient, can also improve the utilization rate of mordant.
In sum, the beneficial effects of the present invention are：Technological method for processing of the present invention is simple, the steel ball obtained after processing
Quality is high, and various aspects of performance is obviously improved, and service life is also significantly increased.
Specific embodiment
The present invention is described in further detail below.
Embodiment 1
Method for processing steel ball in this specific embodiment, comprises the following steps：
1）Blanking：Finished wire rod is cut, blank is obtained：
2）Pre-profiling：Blank is put into the Medium frequency induction coil being powered and it is heated, under Medium frequency induction coil
Coolant is placed by side, after after blank fusing, cuts off the power supply of Medium frequency induction coil, the blank after fusing is dropped and enters coolant
Cooled down, obtained shot；
3）Tempering：Shot is heated into 150 DEG C to be tempered；
4）Pickling：By step 3）The shot for obtaining is put into the solution pickling tube that concentration of hydrochloric acid is 15%, and pickling time is 7 minutes,
The solution pickling tube that concentration of hydrochloric acid is 18% is placed into, pickling time is 4 minutes, is subsequently placed into the solution that concentration of hydrochloric acid is 22%
Pickling tube, pickling time is 2 minutes, is rinsed using water under high pressure after pickling, and is dried；
5）Fine grinding：By step 4）The shot for obtaining is put into steel ball lapping machine and is refined, and obtains steel ball；
6）Stress relief annealing：By step 5）The steel ball for obtaining is heated to 130 DEG C and is annealed, and annealing temperature is than step 3）In return
Fiery temperature is low 20 DEG C；
7）Polished and cleaned.
Embodiment 2
Method for processing steel ball in this specific embodiment, comprises the following steps：
1）Blanking：Finished wire rod is cut, blank is obtained：
2）Pre-profiling：Blank is put into the Medium frequency induction coil being powered and it is heated, under Medium frequency induction coil
Coolant is placed by side, after after blank fusing, cuts off the power supply of Medium frequency induction coil, the blank after fusing is dropped and enters coolant
Cooled down, obtained shot；
3）Tempering：Shot is heated into 250 DEG C to be tempered；
4）Pickling：By step 3）The shot for obtaining is put into the solution pickling tube that concentration of hydrochloric acid is 17%, and pickling time is 6 minutes,
The solution pickling tube that concentration of hydrochloric acid is 20% is placed into, pickling time is 4 minutes, is subsequently placed into the solution that concentration of hydrochloric acid is 25%
Pickling tube, pickling time is 1 minute, is rinsed using water under high pressure after pickling, and is dried；
5）Fine grinding：By step 4）The shot for obtaining is put into steel ball lapping machine and is refined, and obtains steel ball；
6）Stress relief annealing：By step 5）The steel ball for obtaining is heated to 220 DEG C and is annealed, and annealing temperature is than step 3）In return
Fiery temperature is low 30 DEG C；
7）Polished and cleaned.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although by ginseng
According to the preferred embodiments of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
To make various changes to it in the form and details, without departing from the present invention that appended claims are limited
Spirit and scope.
Claims (3)
1. a kind of method for processing steel ball, it is characterised in that：Comprise the following steps：
1）Blanking：Finished wire rod is cut, blank is obtained：
2）Pre-profiling：Blank is put into the Medium frequency induction coil being powered and it is heated, under Medium frequency induction coil
Coolant is placed by side, after after blank fusing, cuts off the power supply of Medium frequency induction coil, the blank after fusing is dropped and enters coolant
Cooled down, obtained shot；
3）Tempering：Shot is heated into 150~250 DEG C to be tempered；
4）Pickling：By step 3）The shot for obtaining is put into the solution that concentration of hydrochloric acid is 15~25%, and pickling time is 10~15
Minute, it is rinsed using water under high pressure after pickling, and dry：
5）Fine grinding：By step 4）The shot for obtaining is put into steel ball lapping machine and is refined, and obtains steel ball；
6）Stress relief annealing：By step 5）The steel ball for obtaining is heated to 130~230 DEG C and is annealed；
7）Polished and cleaned.
2. method for processing steel ball according to claim 1, it is characterised in that：Step 6）In annealing temperature than step 3）In
Temperature it is low 20~30 DEG C.
3. method for processing steel ball according to claim 1, it is characterised in that：Step 4）In, shot is put into three successively
Pickling tube carries out pickling, and the concentration of hydrochloric acid in three pickling tubes is incremented by successively, and pickling time in three pickling tubes according to
It is secondary to successively decrease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611010266.XA CN106735265A (en) | 2016-11-17 | 2016-11-17 | Method for processing steel ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611010266.XA CN106735265A (en) | 2016-11-17 | 2016-11-17 | Method for processing steel ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106735265A true CN106735265A (en) | 2017-05-31 |
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ID=58968484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611010266.XA Pending CN106735265A (en) | 2016-11-17 | 2016-11-17 | Method for processing steel ball |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109909812A (en) * | 2019-02-28 | 2019-06-21 | 江苏力星通用钢球股份有限公司 | A kind of big ball polishing process of wind-powered electricity generation |
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| JP2016160442A (en) * | 2015-02-26 | 2016-09-05 | 住友金属鉱山株式会社 | Manufacturing apparatus and manufacturing method of solder ball |
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| JPH03107404A (en) * | 1989-09-22 | 1991-05-07 | Daido Steel Co Ltd | Method and apparatus for manufacturing metal powder |
| CN1425523A (en) * | 2003-01-17 | 2003-06-25 | 福州大学 | Method for obtaining wide diameter liquid metal container-less contact fast coagulation |
| CN1931481A (en) * | 2005-09-14 | 2007-03-21 | 张晶磊 | Production process of copper microsphere and tin microsphere |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109909812A (en) * | 2019-02-28 | 2019-06-21 | 江苏力星通用钢球股份有限公司 | A kind of big ball polishing process of wind-powered electricity generation |
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Application publication date: 20170531 |