CN105112613A - Method for producing steel balls through stamping and rounding - Google Patents
Method for producing steel balls through stamping and rounding Download PDFInfo
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- CN105112613A CN105112613A CN201510436101.8A CN201510436101A CN105112613A CN 105112613 A CN105112613 A CN 105112613A CN 201510436101 A CN201510436101 A CN 201510436101A CN 105112613 A CN105112613 A CN 105112613A
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Abstract
The invention relates to a method for producing steel balls through stamping and rounding. The method comprises the following steps of 1, heating, wherein steel forgings are heated; 2, stamping, wherein the heated steel forgings are stamped into elliptical steel ball blanks; 3, forming, wherein the steel ball blanks are rounded, and steel balls are formed; 4, forced cooling, wherein forced cooling is conducted on the formed steel balls; 5, heating, wherein the steel balls subjected to forced cooling are heated; 6, primary quenching, wherein primary quenching is conducted on the heated steel balls; 7, secondary quenching, wherein secondary quenching is conducted on the steel balls subjected to primary quenching; and 8, tempering, wherein tempering is conducted on the steel balls subjected to secondary quenching. By means of the method for producing steel balls through stamping and rounding, the quality of the produced steel balls is good.
Description
Technical field
The present invention relates to a kind of steel ball production method, especially relate to a kind of steel ball production method utilizing punching press, round as a ball forming mode.
Background technology
At present, the conventional steel ball mode of production is based on forging and hot rolling; But forging mode production efficiency is lower, and hot rolling mode is larger to steel ball quality management and control difficulty; And the round as a ball forming mode of spheronizator is more common as production ball-like structure in fields such as medicines, but comparatively rarely seen at steel ball production field;
And, during conventional steel ball is produced, being sent in water by steel ball after steel ball is shaped utilizes waste heat to quench, general steel ball leaving water temperature(LWT) is higher, do not carry out completely to its martensitic transformation of steel ball of more than diameter 60mm, cause steel ball core hardness not enough, if extend the cool time, when being down to below 80 DEG C by steel ball leaving water temperature(LWT), easily there is cracking phenomena in steel ball; Thus affect the performance of steel ball.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide the punching press that a kind of steel ball quality produced is good round as a ball steel ball production method.
The object of the present invention is achieved like this:
The round as a ball steel ball production method of a kind of punching press, described method includes following steps:
Step 1, heating: steel forging is heated;
Step 2, punching press: the steel forging after heating is struck out ellipticity steel-ball mill;
Step 3: be shaped: by round as a ball for steel-ball mill shaping;
Step 4, Qiang Leng: the steel ball after shaping carries out air blast cooling;
Step 5, to heat: the steel ball after cold is by force heated;
Step 6, primary quenching: the steel ball after heating carries out first time quenching;
Step 7, secondary quenching: the steel ball after primary quenching carries out second time quenching again;
Step 8, tempering: tempering is carried out to the steel ball after secondary quenching.
The round as a ball steel ball production method of a kind of punching press of the present invention, is cooled steel ball by water quenching liquid in step 6.
The round as a ball steel ball production method of a kind of punching press of the present invention, is cooled steel ball by water-based hardening liquid in step 7.
Compared with prior art, the invention has the beneficial effects as follows:
Steel ball is produced in punching press of the present invention, round as a ball mode, and steel ball density is large, quality is good; Meanwhile, double quenching is carried out to steel ball, effectively can improve the quality of steel ball; Meanwhile, secondary quenching selects the water-soluble polymers aqueous solution as hardening liquid, and its speed of cooling, between water, oil, can significantly improve martensitic transformation amount, can avoid again the workpiece problem of Cracking that water-cooled causes, thus improves quality and the work-ing life of steel ball; Further, secondary quenching equipment can realize iron shot hardening temperature and time equal automatic control, ensures that steel ball quality is stablized controlled.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the round as a ball steel ball production method of a kind of punching press of the present invention.
Wherein:
Process furnace 1, stamping machine 2, spheronizator 3, transfer roller 4, by force cold section 5, ring furnace 6, ball separating machine 7, quenching stirring cage 8, again quench systems 9, transfer roller 10, tempering stove 11.
Embodiment
See Fig. 1, the round as a ball steel ball production method of a kind of punching press that the present invention relates to, described method includes following steps:
Step 1, heating: undertaken adding operation by steel forging input process furnace 1;
Step 2, punching press: the steel forging after heating is struck out ellipticity steel-ball mill through stamping machine 2;
Step 3, shaping: steel-ball mill is inputted round as a ball shaping in spheronizator 3;
Step 4, Qiang Leng: the steel ball after round as a ball shaping enters through transfer roller 4 and carries out air blast cooling for cold section 5 by force;
Step 5, to heat: the steel ball of Qiang Lenghou enters ring furnace 6 through tape transport and heats;
Step 6, primary quenching: the steel ball after heating enters quenching stirring cage 8 and carries out first time quenching after ball separating machine 7 shunt, and steel ball temperature after cold quenching is cooled to 150 ~ 180 DEG C;
Preferably, stirring cage 8 of quenching can be helical feed quenching press; Described helical feed quenching press includes housing, described housing internal frame is provided with screw shaft, described helical feed quenching press also includes media slot, described media slot is installed on housing bottom, housing and media slot form a dielectric cavity, described housing is provided with and is provided with two row's media ports along its length, two row's media ports lay respectively at the both sides of housing, and media port is connected with dielectric cavity; Described media port is horn-like, and this trumpet-shaped little head end is towards housing, and major part section is towards dielectric cavity; And two row's media port non-equidistance arrangements, be positioned at the media port dense arrangement of helical feed quenching press front end steel ball opening for feed, toward the media port sparse arrangement gradually in steel ball discharge port direction, helical feed quenching press rear end;
Step 7, secondary quenching: the Steel ball conveyor after primary quenching extremely again quench systems 8 carries out second time quenching, and steel ball temperature after water-based hardening liquid is cooled to lower than 80 DEG C;
Step 8, tempering: the steel ball after secondary quenching is sent in tempering stove through transfer roller 10 and carried out temper to eliminate stress;
Steel ball enters in water-based hardening liquid and continues to be cooled to less than 80 DEG C after traditional cold quenching, thus increases the martensitic transformation amount in steel ball, improves steel ball surface and core hardness, increases steel ball wear resistance, improves the steel ball life-span; The steel ball surface hardness prepared by this method can reach more than HRC62, more than centre hardness HRC55, volume more than hardness HRC60.
In addition: it should be noted that above-mentioned embodiment is only a prioritization scheme of this patent, any change that those skilled in the art does according to above-mentioned design or improvement, all within the protection domain of this patent.
Claims (3)
1. the round as a ball steel ball production method of punching press, is characterized in that: described method includes following steps:
Step 1, heating: steel forging is heated;
Step 2, punching press: the steel forging after heating is struck out ellipticity steel-ball mill;
Step 3: be shaped: by round as a ball for steel-ball mill shaping;
Step 4, Qiang Leng: the steel ball after shaping carries out air blast cooling;
Step 5, to heat: the steel ball after cold is by force heated;
Step 6, primary quenching: the steel ball after heating carries out first time quenching;
Step 7, secondary quenching: the steel ball after primary quenching carries out second time quenching again;
Step 8, tempering: tempering is carried out to the steel ball after secondary quenching.
2. the round as a ball steel ball production method of a kind of punching press as claimed in claim 1, be is characterized in that: cooled steel ball by water quenching liquid in step 6.
3. the round as a ball steel ball production method of a kind of punching press as claimed in claim 1, be is characterized in that: cooled steel ball by water-based hardening liquid in step 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436101.8A CN105112613A (en) | 2015-07-23 | 2015-07-23 | Method for producing steel balls through stamping and rounding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436101.8A CN105112613A (en) | 2015-07-23 | 2015-07-23 | Method for producing steel balls through stamping and rounding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105112613A true CN105112613A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510436101.8A Pending CN105112613A (en) | 2015-07-23 | 2015-07-23 | Method for producing steel balls through stamping and rounding |
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| CN (1) | CN105112613A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553141A (en) * | 2017-09-05 | 2018-01-09 | 四川鸿舰重型机械制造有限责任公司 | Full-automatic more specifications extrude round as a ball grinding ball production |
| CN108188316A (en) * | 2018-04-04 | 2018-06-22 | 安阳锻压数控设备有限公司 | The equipment systems and production technology of a kind of forged steel ball |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0192315A (en) * | 1986-12-12 | 1989-04-11 | Musashi Seimitsu Ind Co Ltd | Method for hardening and tempering steel |
| CN101406922A (en) * | 2008-11-20 | 2009-04-15 | 山东华民钢球股份有限公司 | Grinding ball production method and rotary cutting roll forging machine for grinding ball production |
| CN103014289A (en) * | 2013-01-09 | 2013-04-03 | 米易华星钒钛科技有限责任公司 | Manufacturing method of forged steel balls |
| CN103498023A (en) * | 2013-09-03 | 2014-01-08 | 上海交通大学 | Method for preventing cracking of water-quenched edges and angles of rectangular alloy steel member |
| CN104164552A (en) * | 2014-08-08 | 2014-11-26 | 苏州中门子科技有限公司 | Quenching system used in steel ball production |
-
2015
- 2015-07-23 CN CN201510436101.8A patent/CN105112613A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0192315A (en) * | 1986-12-12 | 1989-04-11 | Musashi Seimitsu Ind Co Ltd | Method for hardening and tempering steel |
| CN101406922A (en) * | 2008-11-20 | 2009-04-15 | 山东华民钢球股份有限公司 | Grinding ball production method and rotary cutting roll forging machine for grinding ball production |
| CN103014289A (en) * | 2013-01-09 | 2013-04-03 | 米易华星钒钛科技有限责任公司 | Manufacturing method of forged steel balls |
| CN103498023A (en) * | 2013-09-03 | 2014-01-08 | 上海交通大学 | Method for preventing cracking of water-quenched edges and angles of rectangular alloy steel member |
| CN104164552A (en) * | 2014-08-08 | 2014-11-26 | 苏州中门子科技有限公司 | Quenching system used in steel ball production |
Non-Patent Citations (1)
| Title |
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| 王忠诚等主编: "《汽车零件热处理实用技术》", 30 June 2013, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553141A (en) * | 2017-09-05 | 2018-01-09 | 四川鸿舰重型机械制造有限责任公司 | Full-automatic more specifications extrude round as a ball grinding ball production |
| CN108188316A (en) * | 2018-04-04 | 2018-06-22 | 安阳锻压数控设备有限公司 | The equipment systems and production technology of a kind of forged steel ball |
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Application publication date: 20151202 |
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| RJ01 | Rejection of invention patent application after publication |