CN104109810A - High-C abrasion-resistant steel ball - Google Patents
High-C abrasion-resistant steel ball Download PDFInfo
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- CN104109810A CN104109810A CN201410377325.1A CN201410377325A CN104109810A CN 104109810 A CN104109810 A CN 104109810A CN 201410377325 A CN201410377325 A CN 201410377325A CN 104109810 A CN104109810 A CN 104109810A
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- steel ball
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- proof steel
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Abstract
The invention discloses a high-C abrasion-resistant steel ball. The steel ball comprises the following components by weight percent: 1.1% to 1.2% of C, 0.2% to 0.4% of Si, 0.4% to 0.5% of Cr, 1.3% to 1.5% of Mn, 0.02% to 0.03% of Ti, 0.1% to 0.2% of Al, 0.15% to 0.25% of Mo, 0% to 0.02% of S, 0% to 0.06% of P and the balance of Fe. According to the component proportion, the high-C abrasion-resistant steel ball is prepared by carrying out the following process steps: S1, weighing raw materials according to the weight percent of the components, smelting and initially blending so as to obtain molten iron, carrying out refining desulphurization and deoxidization, finely blending the components, pouring, casting for shaping and then clearing so as to obtain a casting; and S2, carrying out heat preservation on the casting obtained in the step S1 at 840 DEG C to 850 DEG C for 2 to 3 hours, then carrying out water quenching, heating the quenched casting to 200 DEG C to 210 DEG C and tempering, carrying out heat preservation for 1 to 2 hours, moving into a slow cooling pit for slow cooling and cooling to a room temperature so as to obtain the abrasion-resistant steel ball product.
Description
Technical field
The present invention relates to grinding machinery technical field, relate in particular to a kind of high-carbon abrasion-proof steel ball.
Background technology
High-carbon abrasion-proof steel ball is the first high-abrasive material expendable part of pulverizing industry, and annual domestic only Mineral Processing Industry just need to consume the steel ball of approximately 2,000,000 tons of various materials, and China's Cement industry also needs to consume 200,000 tons every year.Abrasion-proof steel ball is the important base parts and components of ball mill, and especially accurate industrial ball plays great function in the national economic development, and it is widely used in cement mill, power station etc.
High-carbon abrasion-proof steel ball is in operation process, working conditions is very complicated, when movement parts runs up, between steel ball and its bracing or strutting arrangement, be mainly to put or line contacts, bearing concentrated periodic repeated load, its STRESS VARIATION can be by zero to maximum, more zero by being up to, contact area is less, and the stress bearing is just larger.Simultaneously steel ball also to bear the load that causes due to centrifugal force and and its bracing or strutting arrangement between the recoverable deformation that produces.In addition, steel ball is also subject to the corrosion of lubricated other impurity of wet goods in working process, therefore the over-all properties of abrasion-proof steel ball is had to higher requirement.In prior art, there is hardening capacity and toughness deficiency in high-carbon abrasion-proof steel ball, causes its wear resistance can not meet grinding requirement conventionally, in order to improve wear resistance, adopts higher alloying element to add, and its cost is too high again, need to improve.
Summary of the invention
In order to solve the technical problem existing in background technology, the present invention proposes a kind of high-carbon abrasion-proof steel ball, it has advantages of high abrasion, high work-ing life.
A kind of high-carbon abrasion-proof steel ball that the present invention proposes, the weight percentage of its each component is as follows:
C:1.1%-1.2%; Si:0.2%-0.4%; Cr:0.4%-0.5%; Mn:1.3%-1.5%; Ti:0.02%-0.03%; Al:0.1%-0.2%; Mo:0.15%-0.25%; S:0-0.02%; P:0-0.06%; Clout is Fe;
According to above-mentioned each component proportion, according to following processing step, prepare described high-carbon abrasion-proof steel ball:
S1: by each component weight percentage, take raw material and carry out melting and composition initial adjustment, obtain molten iron, refining desulfuration, deoxidation, trimming, cast, after casting, cleaning, obtains foundry goods;
S2: the foundry goods obtaining in S1, at 840-850 ℃, is incubated to 2-3 hour, and then shrend, is warming up to 200-210 ℃ by the foundry goods after quenching and carries out temper, is incubated after 1-2 hour, moves into burial pit Slow cooling to room temperature, obtains abrasion-proof steel ball finished product.
In technique scheme, improved C constituent content, utilize cheap C element to improve hardening capacity and the hardenability of steel ball, thereby improve the wear resistance of steel ball; Optimize the content of Si, made on the one hand it can reach the effect that improves steel ball temper resistance, prevented on the other hand the grain coarsening of steel ball; Control the content of Mn element, improved steel ball Medium pearlite content, and improved heat treatment performance and the wear resisting property of steel ball; Compound interpolation Ti, Cr, Al, Mo, the hardening capacity of raising steel ball, crystal grain thinning, improves deoxidizing capacity, promotes steel ball over-all properties; Control the content of S and P, the excessive deterioration that can improve the over-all properties of steel ball; In preparation process, according to alloying optimum result, rationally set heat treated temperature and time, make steel ball realize the combination of good hardness and toughness, thereby obtain high abrasion, the advantage in high work-ing life.
Preferably, the weight percentage of its each component is as follows:
C:1.12%-1.18%; Si:0.25%-0.35%; Cr:0.42%-0.48%; Mn:1.35%-1.45%; Ti:0.022%-0.028%; Al:0.12%-0.18%; Mo:0.18%-0.22%; S:0-0.01%; P:0-0.03%; Clout is Fe.
Preferably, the weight percentage of its each component is as follows:
C:1.14%; Si:0.3%; Cr:0.45%; Mn:1.4%; Ti:0.025%; Al:0.15%; Mo:0.2%; S:0.008%; P:0.01%; Clout is Fe.
Preferably, in step S2, by the foundry goods obtaining in S1 at 843-847 ℃, be incubated 2.5 hours, then shrend, is warming up to 202-208 ℃ by the foundry goods after quenching and carries out temper, be incubated after 1.5 hours, move into burial pit Slow cooling to room temperature, obtain abrasion-proof steel ball finished product.
Preferably, in step S2, the foundry goods obtaining in S1, at 845 ℃, is incubated to 2.5 hours, then shrend, is warming up to 205 ℃ by the foundry goods after quenching and carries out temper, is incubated after 1.5 hours, moves into burial pit Slow cooling to room temperature, obtains abrasion-proof steel ball finished product.
In the present invention, by the Composition Design of steel ball and preparation technology are optimized, improve the over-all properties of high-carbon abrasion-proof steel ball, and made steel ball there is high abrasion, high work-ing life.
Embodiment
Below in conjunction with specific examples, the present invention is described in detail; should understand; embodiment is only for the present invention is described, rather than for the present invention is limited, and any modification of making on basis of the present invention, is equal to replacement etc. all in protection scope of the present invention.
Embodiment 1
A high-carbon abrasion-proof steel ball, the weight percentage of its each component is as follows:
C:1.14%; Si:0.3%; Cr:0.45%; Mn:1.4%; Ti:0.025%; Al:0.15%; Mo:0.2%; S:0.008%; P:0.01%; Clout is Fe;
According to above-mentioned each component proportion, according to following processing step, prepare described high-carbon abrasion-proof steel ball:
S1: by each component weight percentage, take raw material and carry out melting and composition initial adjustment, obtain molten iron, refining desulfuration, deoxidation, trimming, cast, after casting, cleaning, obtains foundry goods;
S2: the foundry goods obtaining in S1, at 845 ℃, is incubated to 2.5 hours, and then shrend, is warming up to 205 ℃ by the foundry goods after quenching and carries out temper, is incubated after 1.5 hours, moves into burial pit Slow cooling to room temperature, obtains abrasion-proof steel ball finished product.
Embodiment 2
A high-carbon abrasion-proof steel ball, the weight percentage of its each component is as follows:
C:1.2%; Si:0.2%; Cr:0.5%; Mn:1.5%; Ti:0.03%; Al:0.2%; Mo:0.25%; S:0.015%; P:0.05%; Clout is Fe;
According to above-mentioned each component proportion, according to following processing step, prepare described high-carbon abrasion-proof steel ball:
S1: by each component weight percentage, take raw material and carry out melting and composition initial adjustment, obtain molten iron, refining desulfuration, deoxidation, trimming, cast, after casting, cleaning, obtains foundry goods;
S2: the foundry goods obtaining in S1, at 850 ℃, is incubated to 2 hours, and then shrend, is warming up to 200 ℃ by the foundry goods after quenching and carries out temper, is incubated after 2 hours, moves into burial pit Slow cooling to room temperature, obtains abrasion-proof steel ball finished product.
Embodiment 3
A high-carbon abrasion-proof steel ball, the weight percentage of its each component is as follows:
C:1.1%; Si:0.4%; Cr:0.4%; Mn:1.3%; Ti:0.02%; Al:0.1%; Mo:0.15%; S:0.003%; P:0.005%; Clout is Fe;
According to above-mentioned each component proportion, according to following processing step, prepare described high-carbon abrasion-proof steel ball:
S1: by each component weight percentage, take raw material and carry out melting and composition initial adjustment, obtain molten iron, refining desulfuration, deoxidation, trimming, cast, after casting, cleaning, obtains foundry goods;
S2: the foundry goods obtaining in S1, at 840 ℃, is incubated to 3 hours, and then shrend, is warming up to 210 ℃ by the foundry goods after quenching and carries out temper, is incubated after 1 hour, moves into burial pit Slow cooling to room temperature, obtains abrasion-proof steel ball finished product.
In the above-described embodiments, by the Composition Design of steel ball and preparation technology are optimized, improve the over-all properties of high-carbon abrasion-proof steel ball, and made steel ball there is high abrasion, high work-ing life.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; according to technical scheme of the present invention and inventive concept thereof, be equal to replacement or changed, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. a high-carbon abrasion-proof steel ball, is characterized in that, the weight percentage of its each component is as follows:
C:1.1%-1.2%; Si:0.2%-0.4%; Cr:0.4%-0.5%; Mn:1.3%-1.5%; Ti:0.02%-0.03%; Al:0.1%-0.2%; Mo:0.15%-0.25%; S:0-0.02%; P:0-0.06%; Clout is Fe;
According to above-mentioned each component proportion, according to following processing step, prepare described high-carbon abrasion-proof steel ball:
S1: by each component weight percentage, take raw material and carry out melting and composition initial adjustment, obtain molten iron, refining desulfuration, deoxidation, trimming, cast, after casting, cleaning, obtains foundry goods;
S2: the foundry goods obtaining in S1, at 840-850 ℃, is incubated to 2-3 hour, and then shrend, is warming up to 200-210 ℃ by the foundry goods after quenching and carries out temper, is incubated after 1-2 hour, moves into burial pit Slow cooling to room temperature, obtains abrasion-proof steel ball finished product.
2. high-carbon abrasion-proof steel ball according to claim 1, is characterized in that, the weight percentage of its each component is as follows:
C:1.12%-1.18%; Si:0.25%-0.35%; Cr:0.42%-0.48%; Mn:1.35%-1.45%; Ti:0.022%-0.028%; Al:0.12%-0.18%; Mo:0.18%-0.22%; S:0-0.01%; P:0-0.03%; Clout is Fe.
3. high-carbon abrasion-proof steel ball according to claim 1, is characterized in that, the weight percentage of its each component is as follows:
C:1.14%; Si:0.3%; Cr:0.45%; Mn:1.4%; Ti:0.025%; Al:0.15%; Mo:0.2%; S:0.008%; P:0.01%; Clout is Fe.
4. high-carbon abrasion-proof steel ball according to claim 1, it is characterized in that, in step S2, the foundry goods obtaining in S1, at 843-847 ℃, is incubated to 2.5 hours, then shrend, foundry goods after quenching is warming up to 202-208 ℃ and carries out temper, be incubated after 1.5 hours, move into burial pit Slow cooling to room temperature, obtain abrasion-proof steel ball finished product.
5. high-carbon abrasion-proof steel ball according to claim 1, it is characterized in that, in step S2, the foundry goods obtaining in S1, at 845 ℃, is incubated to 2.5 hours, then shrend, foundry goods after quenching is warming up to 205 ℃ and carries out temper, be incubated after 1.5 hours, move into burial pit Slow cooling to room temperature, obtain abrasion-proof steel ball finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410377325.1A CN104109810A (en) | 2014-08-01 | 2014-08-01 | High-C abrasion-resistant steel ball |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410377325.1A CN104109810A (en) | 2014-08-01 | 2014-08-01 | High-C abrasion-resistant steel ball |
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| CN104109810A true CN104109810A (en) | 2014-10-22 |
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| CN201410377325.1A Pending CN104109810A (en) | 2014-08-01 | 2014-08-01 | High-C abrasion-resistant steel ball |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420616A (en) * | 2015-11-05 | 2016-03-23 | 宁国市南方耐磨材料有限公司 | High-carbon middle-chromium abrasion-resistant steel ball |
| CN112126866A (en) * | 2020-03-23 | 2020-12-25 | 江苏利淮钢铁有限公司 | Steel for continuous rolling wear-resistant ball for iron grinding mine and production process thereof |
| CN115747649A (en) * | 2022-11-14 | 2023-03-07 | 安徽省宁国市宁沪钢球有限公司 | Steel ball rolled by taking high-carbon steel as raw material and rolling process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078265A (en) * | 1992-04-27 | 1993-11-10 | 冶金工业部攀枝花矿山公司 | Steel ball heat treatment process |
| JPH0762430A (en) * | 1993-08-23 | 1995-03-07 | Sumitomo Metal Ind Ltd | Manufacture of wear resistant steel bar |
| JP2000001751A (en) * | 1998-04-15 | 2000-01-07 | Nippon Steel Corp | High strength steel wire having disconnection resistance |
-
2014
- 2014-08-01 CN CN201410377325.1A patent/CN104109810A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078265A (en) * | 1992-04-27 | 1993-11-10 | 冶金工业部攀枝花矿山公司 | Steel ball heat treatment process |
| JPH0762430A (en) * | 1993-08-23 | 1995-03-07 | Sumitomo Metal Ind Ltd | Manufacture of wear resistant steel bar |
| JP2000001751A (en) * | 1998-04-15 | 2000-01-07 | Nippon Steel Corp | High strength steel wire having disconnection resistance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420616A (en) * | 2015-11-05 | 2016-03-23 | 宁国市南方耐磨材料有限公司 | High-carbon middle-chromium abrasion-resistant steel ball |
| CN112126866A (en) * | 2020-03-23 | 2020-12-25 | 江苏利淮钢铁有限公司 | Steel for continuous rolling wear-resistant ball for iron grinding mine and production process thereof |
| CN115747649A (en) * | 2022-11-14 | 2023-03-07 | 安徽省宁国市宁沪钢球有限公司 | Steel ball rolled by taking high-carbon steel as raw material and rolling process |
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Application publication date: 20141022 |