CN105088057A - Wear-resistant ball for ball mill - Google Patents
Wear-resistant ball for ball mill Download PDFInfo
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- CN105088057A CN105088057A CN201510546900.0A CN201510546900A CN105088057A CN 105088057 A CN105088057 A CN 105088057A CN 201510546900 A CN201510546900 A CN 201510546900A CN 105088057 A CN105088057 A CN 105088057A
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Abstract
The invention discloses a wear-resistant ball for a ball mill. The wear-resistant ball comprises, by weight percentage, 2% to 3% of carbon, 0.5% to 1.5% of silicon, 0.8% to 1.2% of manganese, 0.06% to 0.1% of phosphorus, 1% to 2.5% of sulfur, 0.3% to 0.6% of chromium, 0.5% to 0.8% of molybdenum, 0.2% to 0.8% of copper and the balance iron and inevitable impurities. The wear-resistant ball for the ball mill is good in wear resistance, high in hardness and good in tenacity.
Description
Technical field
The present invention relates to wear-resistant ball technical field, particularly relate to a kind of ball mill wear-resistant ball.
Background technology
Ball mill is the main production equipments of the correlative such as pulverizing and ground ore, coal, cement, wear-resistant ball is the key equipment of ball mill, and be main consumable accessory, its principle utilizes the impact of wear-resistant ball and material and grinding to make crushing material, the quality of wear-resistant ball directly affects the pulverizing quality of material to be comminuted, the work-ing life of wear-resistant ball directly affects labour productivity, so be to have enough intensity and hardness to the requirement of wear-resistant ball, has good toughness again.
Summary of the invention
The present invention proposes a kind of ball mill wear-resistant ball, wear resisting property is good, and hardness is high and have good toughness.
A kind of ball mill wear-resistant ball that the present invention proposes, its compositions in weight percentage comprises:
All the other are iron and inevitable impurity;
In preparation process, by steel scrap, ferrochrome, ferromanganese, molybdenum-iron, gray iron, waste and old enameled wire, silica flour is put into process furnace as base-material and is heated, treat that temperature is increased to 1000-1200 DEG C, insulation 1-2h, add reductor insulation 3-5min, send into die for molding, forge, obtain base material, base material is preheated to 700-800 DEG C and beats 20-30min, be cooled to 550-640 DEG C, quench treatment, in quench treatment, material is evenly spread out and is contained in basket frame, resistance furnace is loaded under room temperature, after being warming up to 600 DEG C with the speed of 50-80 DEG C/h, insulation 1-2h, wherein when temperature rises to 360 DEG C, 450 DEG C, 550 DEG C, 20-40min is given respectively when 600 DEG C, 0.5-1h, 0.5-1h, the insulation of 0.5-1h, then with the speed of 100-130 DEG C/h, furnace temperature is risen to quenching temperature 1000-1100 DEG C to be incubated, insulation 2-4h, come out of the stove and be placed on quick air cooling in iron frame, tempering, tempering temperature is 200-250 DEG C, tempering time is 1-3h, obtain ball mill wear-resistant ball.
Preferably, reductor comprises following component by weight: 1-3 part ferromanganese, 1-2 part ferrosilicon, 1-2 part aluminium powder.
Preferably, the particle diameter of ferromanganese is 1-4mm, and ferrosilicon particle diameter is 3-5mm.
Preferably, the weight ratio of carbon and silicon is 2.2-2.5:0.6-1.
Preferably, the weight ratio of molybdenum and copper is 0.6-0.7:0.4-0.6.
Preferably, its compositions in weight percentage comprises:
All the other are iron and inevitable impurity.
Preferably, in preparation process, by steel scrap, ferrochrome, ferromanganese, molybdenum-iron, gray iron, waste and old enameled wire, silica flour is put into process furnace as base-material and is heated, treat that temperature is increased to 1180 DEG C, insulation 1h, add reductor insulation 4min, send into die for molding, forge, obtain base material, base material is preheated to 720 DEG C and beats 28min, be cooled to 570 DEG C, quench treatment, in quench treatment, material is evenly spread out and is contained in basket frame, resistance furnace is loaded under room temperature, after being warming up to 600 DEG C with the speed of 75 DEG C/h, insulation 1h, wherein when temperature rises to 360 DEG C, 450 DEG C, 550 DEG C, 38min is given respectively when 600 DEG C, 0.5h, 1h, the insulation of 0.5h, then with the speed of 120 DEG C/h, furnace temperature is risen to quenching temperature 1020 DEG C to be incubated, insulation 4h, come out of the stove and be placed on quick air cooling in iron frame, tempering, tempering temperature is 210 DEG C, tempering time is 2h, obtain ball mill wear-resistant ball.
The present invention is by adopting steel scrap, ferrochrome, ferromanganese, molybdenum-iron, gray iron, waste and old enameled wire, silica flour is as base-material, molten steel deoxidization through above-mentioned technique melting is abundant, alloying element scaling loss is few, molten steel quality is high, chemical composition stability, each component of conservative control wear-resistant ball, wherein carbon content is the important factor affecting wear-resistant ball performance, increase with carbon content, carbide increasing number in tissue, hardness increases, toughness declines, wear-resistant ball fragmentation tendency increases, silicon can reduce the hardening capacity of wear-resistant ball, silicon amount increases, hardness increases, and higher silicon is dissolved in matrix, be conducive to improving erosion resistance, but silicon amount can not be too high, if more than 8%, toughness significantly declines, manganese forms austenitic element, the formation of carbide is also worked, consider the needs of deoxidization desulfuration, Fe content is no more than 6%, add molybdenum and copper is in order to crystal grain thinning, strengthening matrix, improve wear resistance, copper also can reduce erosion rate in addition, strengthen corrosion-resistant, by the content of conservative control said components, the good toughness of wear-resistant ball, hardness and wear resisting property significantly improve, and corrosion resistance and good.
Embodiment
Embodiment 1
A kind of ball mill wear-resistant ball that the present invention proposes, its compositions in weight percentage comprises:
All the other are iron and inevitable impurity.
Above-mentioned ball mill wear-resistant ball preparation method, comprises the steps:
By steel scrap, ferrochrome, ferromanganese, molybdenum-iron, gray iron, waste and old enameled wire, silica flour is put into process furnace as base-material and is heated, treat that temperature is increased to 1000 DEG C, insulation 2h, add reductor insulation 3min, send into die for molding, forge, obtain base material, base material is preheated to 800 DEG C and beats 20min, be cooled to 640 DEG C, quench treatment, in quench treatment, material is evenly spread out and is contained in basket frame, resistance furnace is loaded under room temperature, after being warming up to 600 DEG C with the speed of 50 DEG C/h, insulation 2h, wherein when temperature rises to 360 DEG C, 450 DEG C, 550 DEG C, 20min is given respectively when 600 DEG C, 1h, 0.5h, the insulation of 1h, then with the speed of 100 DEG C/h, furnace temperature is risen to quenching temperature 1100 DEG C to be incubated, insulation 2h, come out of the stove and be placed on quick air cooling in iron frame, tempering, tempering temperature is 250 DEG C, tempering time is 1h, obtain ball mill wear-resistant ball.
Reductor comprises following component by weight: 3 parts of ferromanganese, 1 part of ferrosilicon, 2 parts of aluminium powders, and the particle diameter of ferromanganese is 1-4mm, and ferrosilicon particle diameter is 3-5mm.
Embodiment 2
A kind of ball mill wear-resistant ball that the present invention proposes, its compositions in weight percentage comprises:
All the other are iron and inevitable impurity.
Above-mentioned ball mill wear-resistant ball preparation method, comprises the steps:
By steel scrap, ferrochrome, ferromanganese, molybdenum-iron, gray iron, waste and old enameled wire, silica flour is put into process furnace as base-material and is heated, treat that temperature is increased to 1200 DEG C, insulation 1h, add reductor insulation 5min, send into die for molding, forge, obtain base material, base material is preheated to 700 DEG C and beats 30min, be cooled to 550 DEG C, quench treatment, in quench treatment, material is evenly spread out and is contained in basket frame, resistance furnace is loaded under room temperature, after being warming up to 600 DEG C with the speed of 80 DEG C/h, insulation 1h, wherein when temperature rises to 360 DEG C, 450 DEG C, 550 DEG C, 40min is given respectively when 600 DEG C, 0.5h, 1h, the insulation of 0.5h, then with the speed of 130 DEG C/h, furnace temperature is risen to quenching temperature 1000 DEG C to be incubated, insulation 4h, come out of the stove and be placed on quick air cooling in iron frame, tempering, tempering temperature is 200 DEG C, tempering time is 3h, obtain ball mill wear-resistant ball.
Reductor comprises following component by weight: 1 part of ferromanganese, 2 parts of ferrosilicon, 1 part of aluminium powder, and the particle diameter of ferromanganese is 1-4mm, and ferrosilicon particle diameter is 3-5mm.
Embodiment 3
A kind of ball mill wear-resistant ball that the present invention proposes, its compositions in weight percentage comprises:
All the other are iron and inevitable impurity.
Above-mentioned ball mill wear-resistant ball preparation method, comprises the steps:
By steel scrap, ferrochrome, ferromanganese, molybdenum-iron, gray iron, waste and old enameled wire, silica flour is put into process furnace as base-material and is heated, treat that temperature is increased to 1100 DEG C, insulation 1.5h, add reductor insulation 3min, send into die for molding, forge, obtain base material, base material is preheated to 780 DEG C and beats 22min, be cooled to 620 DEG C, quench treatment, in quench treatment, material is evenly spread out and is contained in basket frame, resistance furnace is loaded under room temperature, after being warming up to 600 DEG C with the speed of 55 DEG C/h, insulation 2h, wherein when temperature rises to 360 DEG C, 450 DEG C, 550 DEG C, 25min is given respectively when 600 DEG C, 1h, 0.5h, the insulation of 1h, then with the speed of 110 DEG C/h, furnace temperature is risen to quenching temperature 1080 DEG C to be incubated, insulation 2h, come out of the stove and be placed on quick air cooling in iron frame, tempering, tempering temperature is 240 DEG C, tempering time is 1h, obtain ball mill wear-resistant ball.
Reductor comprises following component by weight: 2.8 parts of ferromanganese, 1 part of ferrosilicon, 1.8 parts of aluminium powders, and the particle diameter of ferromanganese is 1-4mm, and ferrosilicon particle diameter is 3-5mm.
Embodiment 4
A kind of ball mill wear-resistant ball that the present invention proposes, its compositions in weight percentage comprises:
All the other are iron and inevitable impurity.
Above-mentioned ball mill wear-resistant ball preparation method, comprises the steps:
By steel scrap, ferrochrome, ferromanganese, molybdenum-iron, gray iron, waste and old enameled wire, silica flour is put into process furnace as base-material and is heated, treat that temperature is increased to 1180 DEG C, insulation 1h, add reductor insulation 4min, send into die for molding, forge, obtain base material, base material is preheated to 720 DEG C and beats 28min, be cooled to 570 DEG C, quench treatment, in quench treatment, material is evenly spread out and is contained in basket frame, resistance furnace is loaded under room temperature, after being warming up to 600 DEG C with the speed of 75 DEG C/h, insulation 1h, wherein when temperature rises to 360 DEG C, 450 DEG C, 550 DEG C, 38min is given respectively when 600 DEG C, 0.5h, 1h, the insulation of 0.5h, then with the speed of 120 DEG C/h, furnace temperature is risen to quenching temperature 1020 DEG C to be incubated, insulation 4h, come out of the stove and be placed on quick air cooling in iron frame, tempering, tempering temperature is 210 DEG C, tempering time is 2h, obtain ball mill wear-resistant ball.
Reductor comprises following component by weight: 1.5 parts of ferromanganese, 2 parts of ferrosilicon, 1.2 parts of aluminium powders, and the particle diameter of ferromanganese is 1-4mm, and ferrosilicon particle diameter is 3-5mm.
Adopt the finished product wear-resistant ball that above-mentioned explained hereafter goes out, hardness value reaches 54-58HRC, and through using on ball mill, average ball consumption is about 60-80g/T, and percentage of damage is at 0.05-0.07%, and the life-span is about the 5-8 of common forged steel ball doubly, remarkable in economical benefits.
Above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (7)
1. a ball mill wear-resistant ball, is characterized in that, its compositions in weight percentage comprises:
All the other are iron and inevitable impurity;
In preparation process, by steel scrap, ferrochrome, ferromanganese, molybdenum-iron, gray iron, waste and old enameled wire, silica flour is put into process furnace as base-material and is heated, treat that temperature is increased to 1000-1200 DEG C, insulation 1-2h, add reductor insulation 3-5min, send into die for molding, forge, obtain base material, base material is preheated to 700-800 DEG C and beats 20-30min, be cooled to 550-640 DEG C, quench treatment, in quench treatment, material is evenly spread out and is contained in basket frame, resistance furnace is loaded under room temperature, after being warming up to 600 DEG C with the speed of 50-80 DEG C/h, insulation 1-2h, wherein when temperature rises to 360 DEG C, 450 DEG C, 550 DEG C, 20-40min is given respectively when 600 DEG C, 0.5-1h, 0.5-1h, the insulation of 0.5-1h, then with the speed of 100-130 DEG C/h, furnace temperature is risen to quenching temperature 1000-1100 DEG C to be incubated, insulation 2-4h, come out of the stove and be placed on quick air cooling in iron frame, tempering, tempering temperature is 200-250 DEG C, tempering time is 1-3h, obtain ball mill wear-resistant ball.
2. ball mill wear-resistant ball according to claim 1, is characterized in that, reductor comprises following component by weight: 1-3 part ferromanganese, 1-2 part ferrosilicon, 1-2 part aluminium powder.
3. ball mill wear-resistant ball according to claim 1 and 2, is characterized in that, the particle diameter of ferromanganese is 1-4mm, and ferrosilicon particle diameter is 3-5mm.
4. the ball mill wear-resistant ball according to any one of claim 1-3, is characterized in that, the weight ratio of carbon and silicon is 2.2-2.5:0.6-1.
5. the ball mill wear-resistant ball according to any one of claim 1-4, is characterized in that, the weight ratio of molybdenum and copper is 0.6-0.7:0.4-0.6.
6. the ball mill wear-resistant ball according to any one of claim 1-5, is characterized in that, its compositions in weight percentage comprises:
All the other are iron and inevitable impurity.
7. the ball mill wear-resistant ball according to any one of claim 1-6, it is characterized in that, in preparation process, by steel scrap, ferrochrome, ferromanganese, molybdenum-iron, gray iron, waste and old enameled wire, silica flour is put into process furnace as base-material and is heated, treat that temperature is increased to 1180 DEG C, insulation 1h, add reductor insulation 4min, send into die for molding, forge, obtain base material, base material is preheated to 720 DEG C and beats 28min, be cooled to 570 DEG C, quench treatment, in quench treatment, material is evenly spread out and is contained in basket frame, resistance furnace is loaded under room temperature, after being warming up to 600 DEG C with the speed of 75 DEG C/h, insulation 1h, wherein when temperature rises to 360 DEG C, 450 DEG C, 550 DEG C, 38min is given respectively when 600 DEG C, 0.5h, 1h, the insulation of 0.5h, then with the speed of 120 DEG C/h, furnace temperature is risen to quenching temperature 1020 DEG C to be incubated, insulation 4h, come out of the stove and be placed on quick air cooling in iron frame, tempering, tempering temperature is 210 DEG C, tempering time is 2h, obtain ball mill wear-resistant ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546900.0A CN105088057A (en) | 2015-08-28 | 2015-08-28 | Wear-resistant ball for ball mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546900.0A CN105088057A (en) | 2015-08-28 | 2015-08-28 | Wear-resistant ball for ball mill |
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| CN105088057A true CN105088057A (en) | 2015-11-25 |
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| CN201510546900.0A Pending CN105088057A (en) | 2015-08-28 | 2015-08-28 | Wear-resistant ball for ball mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699436A (en) * | 2021-08-26 | 2021-11-26 | 浙江振兴石化机械有限公司 | Processing technology of wear-resistant and corrosion-resistant ball |
-
2015
- 2015-08-28 CN CN201510546900.0A patent/CN105088057A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 日本钢铁协会: "《新版钢铁技术讲座 第五卷 铸铁与铸钢》", 30 November 1982 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699436A (en) * | 2021-08-26 | 2021-11-26 | 浙江振兴石化机械有限公司 | Processing technology of wear-resistant and corrosion-resistant ball |
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Application publication date: 20151125 |