CN105543635A - Wear resistant ball with higher toughness and hardness - Google Patents
Wear resistant ball with higher toughness and hardness Download PDFInfo
- Publication number
- CN105543635A CN105543635A CN201511025604.2A CN201511025604A CN105543635A CN 105543635 A CN105543635 A CN 105543635A CN 201511025604 A CN201511025604 A CN 201511025604A CN 105543635 A CN105543635 A CN 105543635A
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- wear
- ball
- resistant ball
- rare earth
- hardness
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a wear resistant ball with higher toughness and hardness. The wear resistant ball comprises the following chemical components in percentage by weight: 3.5-4.5% of C, 0.5-1.2% of Si, 1.0-1.8% of Mn, 0.03-0.05% of S, 0.05-0.10% of P, 12-20% of Cr, 0.5-1.2% of W, 0.01-0.03% of Al, 0.04-0.05% of Ti, 0.05-0.10% of rare earth, and the balance of Fe. The wear resistant ball overcomes the defects in the prior art, improves comprehensive performances of a high-chromium steel ball for a ball mill, enables the steel ball to have the advantages of high wear resistance, long service life and better toughness, can resist corrosion, and satisfies the requirements on a graphite nodular wear resistant ball in actual use process.
Description
Technical field
The present invention relates to wear-resistant ball technical field, be specifically related to a kind of wear-resistant ball with higher toughness and hardness.
Background technology
Wear-resistant ball is a kind of for the crushing medium in ball mill, for the material in crushing mill, a kind of be with chromium be main alloy element white cast iron be called for short chrome alloy cast iron, be that the cast grinding ball of material is called chromium alloy iron casting abrading ball with chrome alloy cast iron; Another kind is that the cast grinding ball of material is called ductile iron grinding ball with spheroidal graphite cast iron, wear-resistant ball is mainly used in the industry powders such as metallurgical mine, cement building material, thermal power generation and produces the major equipment with processing, in ball mill working process, abrading-ball belongs to main vulnerable part, on use cost impact greatly; Along with industrial expansion, various large-size ball mill increases year by year, and the consumption of abrading-ball also increases substantially.The shortcomings such as and existing wear-resistant ball crystalline structure is coarse, hardness ratio is lower, and impelling strength is low, wear resisting property difference; Simultaneously in order to improve the durability of crushing efficiency and steel ball, steel ball surface is needed to have enough hardness and fastness to rubbing.Meanwhile, in process of lapping, steel ball and abrasive material, steel ball and liner plate and the collision occurred between steel ball and steel ball inevitable, therefore, also require that steel ball has certain toughness, avoid brokenly ball, this just higher to the composition proposition of steel ball requirement.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of wear-resistant ball with higher toughness and hardness, overcome the deficiencies in the prior art, improve the over-all properties of ball mill high chromium steel ball, and make steel ball have high abrasion, the advantage in high work-ing life and good toughness, also withstand corrosion, meets the requirement to spheroidization of graphite wear-resistant ball in actual use procedure.
Technical problem to be solved by this invention can be come to be realize by the following technical programs:
Have a wear-resistant ball for higher toughness and hardness, in described wear-resistant ball, each chemical composition and weight percent thereof are: C3.5-4.5%, Si0.5-1.2%, Mn1.0-1.8%, S0.03-0.05%, P0.05-0.10%, Cr12-20%, W0.5-1.2%, Al0.01-0.03%, Ti0.04-0.05%, rare earth 0.05-0.10% surplus are Fe.
In wear-resistant ball, each chemical composition and weight percent thereof are: C4%, Si0.8%, Mn1.5%, S0.04%, P0.08%, Cr16%, W0.8%, Al0.02%, Ti0.04%, rare earth 0.08% surplus are Fe.
In wear-resistant ball, each chemical composition and weight percent thereof are: C3.5%, Si0.5%, Mn1.5%, S0.04%, P0.08%, Cr16%, W0.5%, Al0.01%, Ti0.04%, rare earth 0.05% surplus are Fe.
In wear-resistant ball, each chemical composition and weight percent thereof are: C4.5%, Si1.2%, Mn1.8%, S0.04%, P0.08%, Cr20%, W0.5%, Al0.03%, Ti0.05%, rare earth 0.05% surplus are Fe.
Described rare earth is Re.
Described rare earth pours into a mould evenly to apply at molten surface for first 10 ~ 12 minutes after above-mentioned component melting.
Compared with prior art, beneficial effect of the present invention is:
Invention increases the over-all properties of ball mill high chromium steel ball, and make steel ball have high abrasion, the advantage in high work-ing life, good toughness, also withstand corrosion, meets the requirement to spheroidization of graphite wear-resistant ball in actual use procedure; The mechanical property HRC of wear-resistant ball reaches more than 56-60 degree, and impelling strength reaches more than 20-28ak/Jcm2.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1, a kind of wear-resistant ball with higher toughness and hardness, in described wear-resistant ball, each chemical composition and weight percent thereof are: C4%, Si0.8%, Mn1.5%, S0.04%, P0.08%, Cr16%, W0.8%, Al0.02%, Ti0.04%, rare earth 0.08% surplus are Fe, described rare earth is Re, and rare earth pours into a mould evenly to apply at molten surface for first 10 ~ 12 minutes after above-mentioned component melting.
Embodiment 2, a kind of wear-resistant ball with higher toughness and hardness, in described wear-resistant ball, each chemical composition and weight percent thereof are: C3.5%, Si0.5%, Mn1.5%, S0.04%, P0.08%, Cr16%, W0.5%, Al0.01%, Ti0.04%, rare earth 0.05% surplus are Fe, described rare earth is Re, and rare earth pours into a mould evenly to apply at molten surface for first 10 ~ 12 minutes after above-mentioned component melting.
Embodiment 3, a kind of wear-resistant ball with higher toughness and hardness, in described wear-resistant ball, each chemical composition and weight percent thereof are: C4.5%, Si1.2%, Mn1.8%, S0.04%, P0.08%, Cr20%, W0.5%, Al0.03%, Ti0.05%, rare earth 0.05% surplus are Fe, described rare earth is Re, and rare earth pours into a mould evenly to apply at molten surface for first 10 ~ 12 minutes after above-mentioned component melting.
The mechanical property HRC of the wear-resistant ball in three embodiments reaches more than 56-60 degree, and impelling strength reaches more than 20-88ak/Jcm2, improves the over-all properties of ball mill high chromium steel ball, and makes steel ball have high abrasion, the advantage in high work-ing life.
It should be noted that, in this article, such as term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. one kind has the wear-resistant ball of higher toughness and hardness, it is characterized in that, in described wear-resistant ball, each chemical composition and weight percent thereof are: C3.5-4.5%, Si0.5-1.2%, Mn1.0-1.8%, S0.03-0.05%, P0.05-0.10%, Cr12-20%, W0.5-1.2%, Al0.01-0.03%, Ti0.04-0.05%, rare earth 0.05-0.10% surplus are Fe.
2. the wear-resistant ball with higher toughness and hardness according to claim 1, is characterized in that: in wear-resistant ball, each chemical composition and weight percent thereof are: C4%, Si0.8%, Mn1.5%, S0.04%, P0.08%, Cr16%, W0.8%, Al0.02%, Ti0.04%, rare earth 0.08% surplus are Fe.
3. the wear-resistant ball with higher toughness and hardness according to claim 1, is characterized in that: in wear-resistant ball, each chemical composition and weight percent thereof are: C3.5%, Si0.5%, Mn1.5%, S0.04%, P0.08%, Cr16%, W0.5%, Al0.01%, Ti0.04%, rare earth 0.05% surplus are Fe.
4. the wear-resistant ball with higher toughness and hardness according to claim 1, is characterized in that: in wear-resistant ball, each chemical composition and weight percent thereof are: C4.5%, Si1.2%, Mn1.8%, S0.04%, P0.08%, Cr20%, W0.5%, Al0.03%, Ti0.05%, rare earth 0.05% surplus are Fe.
5. the wear-resistant ball with higher toughness and hardness according to claim 1, is characterized in that: described rare earth is Re.
6. the wear-resistant ball with higher toughness and hardness according to claim 1,2,3,4 or 5, is characterized in that: described rare earth pours into a mould evenly to apply at molten surface for first 10 ~ 12 minutes after above-mentioned component melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025604.2A CN105543635A (en) | 2015-12-30 | 2015-12-30 | Wear resistant ball with higher toughness and hardness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511025604.2A CN105543635A (en) | 2015-12-30 | 2015-12-30 | Wear resistant ball with higher toughness and hardness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105543635A true CN105543635A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511025604.2A Pending CN105543635A (en) | 2015-12-30 | 2015-12-30 | Wear resistant ball with higher toughness and hardness |
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| CN (1) | CN105543635A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038844A (en) * | 1989-04-17 | 1990-01-17 | 丰润县合金铸件厂 | HI-chrome cast iron for grinding balls |
| CN1071972A (en) * | 1992-11-25 | 1993-05-12 | 河北工学院 | Consisting of high tenacity, high-chromium complex alloyed cast iron capsule shape (circle) abrading-ball and manufacture method thereof |
| CN1100150A (en) * | 1993-09-09 | 1995-03-15 | 株洲市机械工业研究所 | Impact fatigue-resistant wear-proof alloy cast iron |
| CN1101682A (en) * | 1993-10-14 | 1995-04-19 | 彭伯勋 | Low alloy white cast iron foundery grinding ball for nodular iron ore powder |
| CN1150977A (en) * | 1995-11-17 | 1997-06-04 | 王宇辉 | High-chromium cast-iron grinding ball and its production method |
| CN101698921A (en) * | 2009-09-07 | 2010-04-28 | 芜湖市金贸流体科技股份有限公司 | Wear-resistant spheroidal graphite cast iron and preparation method thereof |
| CN102703796A (en) * | 2012-06-20 | 2012-10-03 | 石家庄市诚达耐磨材料有限公司 | High abrasion resistance high-chromium alloy cast iron grinding ball dedicated for mine and processing technology thereof |
| CN102776448A (en) * | 2012-07-26 | 2012-11-14 | 贵州师范大学 | Alloy grinding ball and production method thereof |
| CN103225036A (en) * | 2013-05-20 | 2013-07-31 | 辽源市金城重型选矿机械有限公司 | Boron-carbide-reinforced wear-resistant bainite ductile iron grinding ball and manufacturing method thereof |
| CN104498815A (en) * | 2014-12-31 | 2015-04-08 | 宁国市双林工贸有限公司 | Anti-corrosion high-chromium wear-resistant ball |
-
2015
- 2015-12-30 CN CN201511025604.2A patent/CN105543635A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038844A (en) * | 1989-04-17 | 1990-01-17 | 丰润县合金铸件厂 | HI-chrome cast iron for grinding balls |
| CN1071972A (en) * | 1992-11-25 | 1993-05-12 | 河北工学院 | Consisting of high tenacity, high-chromium complex alloyed cast iron capsule shape (circle) abrading-ball and manufacture method thereof |
| CN1100150A (en) * | 1993-09-09 | 1995-03-15 | 株洲市机械工业研究所 | Impact fatigue-resistant wear-proof alloy cast iron |
| CN1101682A (en) * | 1993-10-14 | 1995-04-19 | 彭伯勋 | Low alloy white cast iron foundery grinding ball for nodular iron ore powder |
| CN1150977A (en) * | 1995-11-17 | 1997-06-04 | 王宇辉 | High-chromium cast-iron grinding ball and its production method |
| CN101698921A (en) * | 2009-09-07 | 2010-04-28 | 芜湖市金贸流体科技股份有限公司 | Wear-resistant spheroidal graphite cast iron and preparation method thereof |
| CN102703796A (en) * | 2012-06-20 | 2012-10-03 | 石家庄市诚达耐磨材料有限公司 | High abrasion resistance high-chromium alloy cast iron grinding ball dedicated for mine and processing technology thereof |
| CN102776448A (en) * | 2012-07-26 | 2012-11-14 | 贵州师范大学 | Alloy grinding ball and production method thereof |
| CN103225036A (en) * | 2013-05-20 | 2013-07-31 | 辽源市金城重型选矿机械有限公司 | Boron-carbide-reinforced wear-resistant bainite ductile iron grinding ball and manufacturing method thereof |
| CN104498815A (en) * | 2014-12-31 | 2015-04-08 | 宁国市双林工贸有限公司 | Anti-corrosion high-chromium wear-resistant ball |
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Application publication date: 20160504 |
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| RJ01 | Rejection of invention patent application after publication |