CN103710613A - High chromium alloy wear-resistance steel ball - Google Patents
High chromium alloy wear-resistance steel ball Download PDFInfo
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- CN103710613A CN103710613A CN201310439833.3A CN201310439833A CN103710613A CN 103710613 A CN103710613 A CN 103710613A CN 201310439833 A CN201310439833 A CN 201310439833A CN 103710613 A CN103710613 A CN 103710613A
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- steel ball
- chromium alloy
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- resistance steel
- proof steel
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Abstract
The present invention relates to a high chromium alloy wear-resistance steel ball, which comprises the following chemical components, by mass: 2.4-2.8% of C, 0.4-0.7% of Si, 0.3-0.6% of Mn, 10.0-10.5% of Cr, less than or equal to 0.008% of S, less than or equal to 0.008% of P, and the balance of Fe. The high chromium alloy wear-resistance steel ball has the following advantages that: the technical grinding tool is adopted to cast, such that the molten iron cooling is rapid, the wear-resistance steel ball structure is refined, and the casted wear-resistance steel ball has good performances, wherein the hardness can achieve HRC60-62; and the tempering temperature is controlled at 170-200 DEG C, and the obtained wear-resistance steel ball has characteristics of good impact toughness and high wear resistance, and can not be broken during use.
Description
Technical field:
The invention belongs to cast steel field, relate to wear resistance castings, especially a kind of high-chromium alloy abrasion-proof steel ball and manufacture method thereof.
Background technology:
In the use procedure of abrasion-proof steel ball, the hardness of steel ball determines the abrasion loss of steel ball, and existing high-chromium alloy abrasion-proof steel ball hardness is generally HRC55-60, and relatively middle Chrome metal powder abrasion-proof steel ball and low chrome abrasion-proof steel ball have less abrasion loss, and service wear is less.Abrasion-proof steel ball much higher hard easily produces again broken adverse consequences, therefore produces in abrasion-proof steel ball process and should guarantee that abrasion-proof steel ball has higher hardness, guarantees that again abrasion-proof steel ball has good toughness.
Summary of the invention:
The object of the invention is to overcome prior art weak point.
The technical scheme that the present invention realizes object is as follows:
A high-chromium alloy abrasion-proof steel ball, according to chemical composition mass percent is: C2.4～2.8%, Si0.4～0.7%, Mn0.3～0.6%, Cr10.0～10.5%, S≤0.008%, P≤0.008%, all the other are Fe.
The method of making described high-chromium alloy abrasion-proof steel ball, comprises melting technology and thermal treatment process, it is characterized in that: the steps include:
Its manufacture method comprises melting technology and thermal treatment process:
(1) melting technology:
The first step is melted: adopt medium-frequency induction furnace melting, add Cr, Mn, Si in the time of 1550～1600 ℃, the molten steel after melting is dropped in metal die;
Second step molding: make rough casting after integral body is cooling; Rough casting is dropped into process furnace after devaning, polishing;
(2) thermal treatment process:
Quench: process furnace is warming up to 650 ℃, is incubated after 2～4 hours, in 1000～1050 ℃ of oil sumps, quench, after 2 hours, drop into tempering stove;
Tempering: furnace temperature is controlled at 170～200 ℃, tempering 5～8 hours, obtains high-chromium alloy abrasion-proof steel ball after cooling.
Advantage of the present invention and positively effect are:
(1) adopt the casting of technology grinding tool, make molten iron speed of cooling very fast, make abrasion-proof steel ball structure refinement, the abrasion-proof steel ball of casting has better properties, and hardness can reach HRC60-62.
(2) tempering temperature is controlled at 170～200 ℃, and the abrasion-proof steel ball impelling strength obtaining is good, has higher wear resistance, again can be in use not broken.
Embodiment:
Embodiment 1:
A high-chromium alloy abrasion-proof steel ball, according to chemical composition mass percent is: C2.4%, Si0.4%, Mn0.3%, Cr10.0%, S≤0.008%, P≤0.008%, all the other are Fe.
Embodiment 2:
A high-chromium alloy abrasion-proof steel ball, according to chemical composition mass percent is: C2.8%, Si0.7%, Mn0.6%, Cr10.5%, S≤0.008%, P≤0.008%, all the other are Fe
Embodiment 3:
A high-chromium alloy abrasion-proof steel ball, according to chemical composition mass percent is: C2.6%, Si0.5%, Mn0.5%, Cr10.3%, S≤0.008%, P≤0.008%, all the other are Fe
The method of making described high-chromium alloy abrasion-proof steel ball, comprises melting technology and thermal treatment process, it is characterized in that: the steps include:
Its manufacture method comprises melting technology and thermal treatment process:
(1) melting technology:
The first step is melted: adopt medium-frequency induction furnace melting, add Cr, Mn, Si in the time of 1550～1600 ℃, the molten steel after melting is dropped in metal die;
Second step molding: make rough casting after integral body is cooling; Rough casting is dropped into process furnace after devaning, polishing;
(2) thermal treatment process:
Quench: process furnace is warming up to 650 ℃, is incubated after 2～4 hours, in 1000～1050 ℃ of oil sumps, quench, after 2 hours, drop into tempering stove;
Tempering: furnace temperature is controlled at 170～200 ℃, tempering 5～8 hours, obtains high-chromium alloy abrasion-proof steel ball after cooling.
Claims (2)
1. a high-chromium alloy abrasion-proof steel ball, is characterized in that: according to chemical composition mass percent is: C2.4～2.8%, Si0.4～0.7%, Mn0.3～0.6%, Cr10.0～10.5%, S≤0.008%, P≤0.008%, all the other are Fe.
2. manufacture the method for high-chromium alloy abrasion-proof steel ball as claimed in claim 1, comprise melting technology and thermal treatment process, it is characterized in that: the steps include:
Its manufacture method comprises melting technology and thermal treatment process:
(1) melting technology:
The first step is melted: adopt medium-frequency induction furnace melting, add Cr, Mn, Si in the time of 1550～1600 ℃, the molten steel after melting is dropped in metal die;
Second step molding: make rough casting after integral body is cooling; Rough casting is dropped into process furnace after devaning, polishing;
(2) thermal treatment process:
Quench: process furnace is warming up to 650 ℃, is incubated after 2～4 hours, in 1000～1050 ℃ of oil sumps, quench, after 2 hours, drop into tempering stove;
Tempering: furnace temperature is controlled at 170～200 ℃, tempering 5～8 hours, obtains high-chromium alloy abrasion-proof steel ball after cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310439833.3A CN103710613A (en) | 2013-09-25 | 2013-09-25 | High chromium alloy wear-resistance steel ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310439833.3A CN103710613A (en) | 2013-09-25 | 2013-09-25 | High chromium alloy wear-resistance steel ball |
Publications (1)
| Publication Number | Publication Date |
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| CN103710613A true CN103710613A (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310439833.3A Pending CN103710613A (en) | 2013-09-25 | 2013-09-25 | High chromium alloy wear-resistance steel ball |
Country Status (1)
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| CN (1) | CN103710613A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087816A (en) * | 2014-06-24 | 2014-10-08 | 宁国市正兴耐磨材料有限公司 | Novel forged grinding ball |
| CN104084266A (en) * | 2014-06-17 | 2014-10-08 | 宁国东方碾磨材料股份有限公司 | Corrosion-resistant high-hardness grinding segment |
| CN104289280A (en) * | 2014-05-24 | 2015-01-21 | 宁国市南方耐磨材料有限公司 | Corrosion and wear resistant coated ball |
| CN104561761A (en) * | 2014-12-31 | 2015-04-29 | 宁国市双林工贸有限公司 | High-chromium wear resistant steel ball |
| CN106435347A (en) * | 2016-10-24 | 2017-02-22 | 马鞍山顺发机械制造有限公司 | Automobile brake foundry technology |
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| CN1150977A (en) * | 1995-11-17 | 1997-06-04 | 王宇辉 | High-chromium cast-iron grinding ball and its production method |
| CN101445889A (en) * | 2008-12-26 | 2009-06-03 | 马鞍山市益丰实业集团有限公司 | High abrasion proof re-synthesizing cast iron grinding ball and production method thereof |
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| CN101876027A (en) * | 2010-07-15 | 2010-11-03 | 宁国市开源电力耐磨材料有限公司 | High-chromium grinding ball and secondary modification process thereof |
| CN101886212A (en) * | 2010-06-30 | 2010-11-17 | 安徽省宁国诚信耐磨材料有限公司 | Sand casting grinding ball and heat treatment process thereof |
| CN102828100A (en) * | 2012-08-13 | 2012-12-19 | 陈德祥 | Heat treatment method for ultralow manganese grinding ball or grinding segment |
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2013
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS4884024A (en) * | 1972-01-28 | 1973-11-08 | ||
| JPS6411940A (en) * | 1987-07-02 | 1989-01-17 | Mitsubishi Metal Corp | Wear resistant fe based cast alloy for rocker arm having high strength and high toughness |
| CN1150977A (en) * | 1995-11-17 | 1997-06-04 | 王宇辉 | High-chromium cast-iron grinding ball and its production method |
| CN101445889A (en) * | 2008-12-26 | 2009-06-03 | 马鞍山市益丰实业集团有限公司 | High abrasion proof re-synthesizing cast iron grinding ball and production method thereof |
| CN101864533A (en) * | 2010-05-14 | 2010-10-20 | 宁国市南洋铁球有限公司 | Grinding ball specialized for mine |
| CN101886212A (en) * | 2010-06-30 | 2010-11-17 | 安徽省宁国诚信耐磨材料有限公司 | Sand casting grinding ball and heat treatment process thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289280A (en) * | 2014-05-24 | 2015-01-21 | 宁国市南方耐磨材料有限公司 | Corrosion and wear resistant coated ball |
| CN104289280B (en) * | 2014-05-24 | 2016-08-24 | 宁国市南方耐磨材料有限公司 | A kind of corrosion-resistant finishes wear-resistant ball |
| CN104084266A (en) * | 2014-06-17 | 2014-10-08 | 宁国东方碾磨材料股份有限公司 | Corrosion-resistant high-hardness grinding segment |
| CN104087816A (en) * | 2014-06-24 | 2014-10-08 | 宁国市正兴耐磨材料有限公司 | Novel forged grinding ball |
| CN104087816B (en) * | 2014-06-24 | 2016-08-17 | 宁国市正兴耐磨材料有限公司 | A kind of manufacture method forging abrading-ball |
| CN104561761A (en) * | 2014-12-31 | 2015-04-29 | 宁国市双林工贸有限公司 | High-chromium wear resistant steel ball |
| CN104561761B (en) * | 2014-12-31 | 2017-08-29 | 宁国市双林工贸有限公司 | A kind of high-chromium wear-resistant steel ball |
| CN106435347A (en) * | 2016-10-24 | 2017-02-22 | 马鞍山顺发机械制造有限公司 | Automobile brake foundry technology |
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Application publication date: 20140409 |