CN104056696B - Preparation method of wet-process milling mine-dedicated ball - Google Patents
Preparation method of wet-process milling mine-dedicated ball Download PDFInfo
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- CN104056696B CN104056696B CN201410247262.8A CN201410247262A CN104056696B CN 104056696 B CN104056696 B CN 104056696B CN 201410247262 A CN201410247262 A CN 201410247262A CN 104056696 B CN104056696 B CN 104056696B
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Abstract
The invention relates to the field of cast grinding ball materials and particularly relates to a preparation method of a wet-process milling mine-dedicated ball. The mine-dedicated ball consists of the following chemical components in percentage by mass: 2.3%-2.7% of C, 0.5%-1.2% of Mn, lower than or equal to 0.03% of P, lower than or equal to 0.03% of S, 8%-12% of Cr, 0.15%-0.18% of Mo, 0.15%-0.18% of Ni and 0.5%-1.2% of rare earth silicon. Based on the characteristics that a wet-process mill has high corrosiveness and is worn easily and the like, the content of rare earth silicon, nickel and molybdenum is increased, the content of chromium is appropriately adjusted, the content of impurities in molten steel is very low, the components of molten alloy steel are stable, the wear-resisting and corrosion-resisting properties of the product are enhanced greatly and an excellent using effect is achieved.
Description
Technical field
The present invention relates to cast grinding ball Material Field, and in particular to a kind of wet grinding mill mine Special ball and its processing technology.
Background technology
Wet ball mill is after material is broken, then the key equipment crushed.By feed portion, discharging portion, revolution
The major parts such as portion, driving section are constituted.Ball mill is widely used in cement, silicate product, New Building Materials, fire proofed wood
Various ores and other grindability materials are entered by the production industry such as material, chemical fertilizer, black and non-ferrous metal ore and glass ceramics
Row dry type or wet type grinding.
For ore dressing ball mill by wet process corrosivity it is strong, be easily lost the features such as, have a kind of design wet grinding mill mine Special ball only,
Make that Impurities of Molten Steel is few, alloy molten steel composition is more stable, wear-resisting, the decay resistance for making the product is greatly improved,
So as to reach splendid using effect.
The content of the invention
The purpose of the present invention is the defect for above-mentioned prior art, there is provided a kind of wet grinding mill mine Special ball and its added
Work technique, it can make, and Impurities of Molten Steel is few, alloy molten steel composition is more stable, and making wear-resisting, the decay resistance of the product has
It is greatly improved, reaches splendid using effect.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of wet grinding mill mine Special ball, it is characterised in that：The chemical composition of wet grinding mill mine Special ball is with quality
Percentages are：C：2.3% -2.7%, Mn：0.5% -1.2%, P：≤ 0.03%, S：≤ 0.03%, Cr：8% -12%,
Mo：0.15% -0.18%, Ni：0.15% -0.18%, rare earth silicon：0.5% -1.2%.
As a further improvement on the present invention, the chemical composition of its wet grinding mill mine Special ball is by percentage to the quality
For：C：2.3% -2.6%, Mn：0.6% -1.1%, P：≤ 0.02%, S：≤ 0.02%, Cr：9% -11%, Mo：
0.16% -0.18%, Ni：0.16% -0.18%, rare earth silicon：0.6% -1.1%.
As a further improvement on the present invention, the chemical composition of its wet method mine Special ball is by percentage to the quality
For：C：2.3% -2.5%, Mn：0.7% -1.0%, P：≤ 0.01%, S：≤ 0.01%, Cr：9% -10%, Mo：
0.16% -0.17%, Ni：0.16% -0.17%, rare earth silicon：0.7% -1.0%.
The invention also discloses a kind of preparation method of wet grinding mill mine Special ball, comprises the following steps：
(1) melting：The pig iron for preparing and scrap iron are pressed into 1：1-1.5 ratios are originated as ferrous substrate, the pig iron is added and is put into
In stove, temperature is increased to into 1350 DEG C~1550 DEG C, tapping temperature is 1420 DEG C~1460 DEG C；
(2) modulation treatment：Add 5 kinds of low-melting-point metals such as rare earth to be pre-processed in molten steel, then poured into a mould；
(3) it is heat-treated：It is first to heat to 1050 DEG C to be quenched, then 650 DEG C are incubated 2 hours, 720 DEG C are incubated 1 hour,
800 DEG C are incubated 2 hours, and then with 330 DEG C~400 DEG C tempering, time control was at 4~5 hours.
The present invention for ore dressing wet method grinding machine corrosivity it is strong, be easily lost the features such as, increase rare earth silicon, nickel, the composition of molybdenum and contain
Amount, suitably adjusts chromium content, makes that Impurities of Molten Steel is few, alloy molten steel composition is more stable, makes wear-resisting, the corrosion resistance of the product
Can be greatly improved, reach splendid using effect.
Specific embodiment
The specific embodiment of the present invention is described in further detail with reference to embodiment：
A kind of preparation method of wet grinding mill mine Special ball, comprises the following steps：
(1) melting：The pig iron for preparing and scrap iron are pressed into 1：1-1.5 ratios are originated as ferrous substrate, the pig iron is added and is put into
In stove, temperature is increased to into 1350 DEG C~1550 DEG C, tapping temperature is 1420 DEG C~1460 DEG C；
(2) modulation treatment：Cr is added in molten steel：9% -10%, Mo：0.16% -0.17%, Ni：0.16%-
0.17%, rare earth silicon：0.7% -1.0%, Mn：0.7% -1.0% low-melting-point metal is pre-processed, and the content for controlling C exists
2.3% -2.7%, P≤0.03%, S≤0.03%, is then cast；
(3) it is heat-treated：It is first to heat to 1050 DEG C to be quenched, then 650 DEG C are incubated 2 hours, 720 DEG C are incubated 1 hour,
800 DEG C are incubated 2 hours, and then with 330 DEG C~400 DEG C tempering, time control was at 4~5 hours.
Embodiment 1
A kind of preparation method of wet grinding mill mine Special ball, comprises the following steps：
(1) melting：The pig iron for preparing and scrap iron are pressed into 1：1.1 ratios are originated as ferrous substrate, and the pig iron is added into input stove
In, temperature is increased to into 1350 DEG C, tapping temperature is 1420 DEG C；
(2) modulation treatment：Mn is added in molten steel：0.7%, Cr：9%, Mo：0.16%, Ni：0.17%, rare earth silicon：
0.8% low-melting-point metal is pre-processed, and controls the content of C in 2.4%, P：0.02%, S：0.02%, then cast；
(3) it is heat-treated：It is first to heat to 1050 DEG C to be quenched, then 650 DEG C are incubated 2 hours, 720 DEG C are incubated 1 hour,
800 DEG C are incubated 2 hours, and then with 330 DEG C of tempering, time control was at 4 hours.
Embodiment 2
A kind of preparation method of wet grinding mill mine Special ball, comprises the following steps：
(1) melting：The pig iron for preparing and scrap iron are pressed into 1：1.3 ratios are originated as ferrous substrate, and the pig iron is added into input stove
In, temperature is increased to into 1450 DEG C, tapping temperature is 1430 DEG C；
(2) modulation treatment：Mn is added in molten steel：0.7%, Cr：9%, Mo：0.16, Ni：0.16%, rare earth silicon：
0.8% low-melting-point metal is pre-processed, and controls the content of C in 2.4%, P：0.01%, S：0.03%, then cast；
(3) it is heat-treated：It is first to heat to 1050 DEG C to be quenched, then 650 DEG C are incubated 2 hours, 720 DEG C are incubated 1 hour,
800 DEG C are incubated 2 hours, and then with 400 DEG C of tempering, time control was at 5 hours.
Embodiment 3
A kind of preparation method of wet grinding mill mine Special ball, comprises the following steps：
(1) melting：The pig iron for preparing and scrap iron are pressed into 1：1.5 ratios are originated as ferrous substrate, and the pig iron is added into input stove
In, temperature is increased to into 1550 DEG C, tapping temperature is 1460 DEG C；
(2) modulation treatment：Mn is added in molten steel：0.8%, Cr：9%, Mo：0.16%, Ni：0.17%, rare earth silicon：
0.9% low-melting-point metal is pre-processed, and controls the content of C in 2.5%, P：0.01%, S：0.02%, then cast；
(3) it is heat-treated：It is first to heat to 1050 DEG C to be quenched, then 650 DEG C are incubated 2 hours, 720 DEG C are incubated 1 hour,
800 DEG C are incubated 2 hours, and then with 380 DEG C of tempering, time control was at 4.5 hours.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
People simply illustrates this it should be appreciated that the present invention is not restricted to the described embodiments described in above-described embodiment and specification
Bright principle, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Both fall within scope of the claimed invention with improvement.The claimed scope of the invention is by appending claims and its waits
Effect thing is defined.
Claims (1)
1. the preparation method of a kind of wet grinding mill mine Special ball, it is characterised in that comprise the following steps：
(1) melting：The pig iron for preparing and scrap iron are pressed into 1：1-1.5 ratios are originated as ferrous substrate, and the pig iron is added in input stove,
Temperature is increased to into 1350 DEG C~1550 DEG C, tapping temperature is 1420 DEG C~1460 DEG C；
(2) modulation treatment：Cr is added in molten steel：9% -10%, Mo：0.16% -0.17%, Ni：0.16% -0.17%,
Rare earth silicon：0.7% -1.0%, Mn：0.7% -1.0% low-melting-point metal is pre-processed, control the content of C 2.3% -
2.7%, P≤0.03%, S≤0.03%, is then cast；
(3) it is heat-treated：It is first to heat to 1050 DEG C to be quenched, then 650 DEG C are incubated 2 hours, 720 DEG C are incubated 1 hour, 800 DEG C
Insulation 2 hours, then with 330 DEG C~400 DEG C tempering, time control was at 4~5 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410247262.8A CN104056696B (en) | 2014-06-05 | 2014-06-05 | Preparation method of wet-process milling mine-dedicated ball |
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| CN201410247262.8A CN104056696B (en) | 2014-06-05 | 2014-06-05 | Preparation method of wet-process milling mine-dedicated ball |
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| CN104056696B true CN104056696B (en) | 2017-05-17 |
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Families Citing this family (1)
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| CN104451347A (en) * | 2014-12-05 | 2015-03-25 | 洛阳昶威机械制造安装有限公司 | Manufacture process of chrome molybdenum alloy helical blade |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0953146A (en) * | 1995-08-11 | 1997-02-25 | Sumitomo Metal Ind Ltd | Steel for crusher and straight bar for crusher |
| AU2086700A (en) * | 1999-01-19 | 2000-08-07 | Magotteaux International S.A. | Process of the production of high-carbon cast steels intended for wearing parts |
| CN101864543B (en) * | 2010-06-30 | 2013-01-02 | 田阳三方耐磨材料有限公司 | Ball for air swept mill and processing method thereof |
| CN102443741B (en) * | 2011-11-15 | 2013-11-27 | 攀钢集团工程技术有限公司 | Manufacturing method for steel ball for ball mill |
| CN102876961A (en) * | 2012-08-31 | 2013-01-16 | 宁国市金六星研磨材料科技有限公司 | Novel ultralow-manganese and high-chromium wear-resistant and corrosion-resistant cast grinding ball |
| CN102839316B (en) * | 2012-09-28 | 2015-04-08 | 石家庄市诚达耐磨材料有限公司 | Ultrahigh chromium grinding ball and processing process thereof |
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