CN106636946A - Preparation method of grinder of high-hardness ball grinding mill - Google Patents

Preparation method of grinder of high-hardness ball grinding mill Download PDF

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Publication number
CN106636946A
CN106636946A CN201611010055.6A CN201611010055A CN106636946A CN 106636946 A CN106636946 A CN 106636946A CN 201611010055 A CN201611010055 A CN 201611010055A CN 106636946 A CN106636946 A CN 106636946A
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CN
China
Prior art keywords
cooled
water
minutes
preparation
molten steel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611010055.6A
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Chinese (zh)
Inventor
王卫远
夏明星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maanshan Yinding Machinery Manufacturing Co Ltd
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Maanshan Yinding Machinery Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201611010055.6A priority Critical patent/CN106636946A/en
Publication of CN106636946A publication Critical patent/CN106636946A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/20—Disintegrating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates

Abstract

The invention discloses a preparation method of a grinder of a high-hardness ball grinding mill. The method comprises the following technical step that molten steel is composed of, by mass, 1.45-1.65% of C, 1.55-1.75% of Si, 1.3-1.5% of Mn, 0.008-0.012% of P, 0.008-0.012% of S, 2.2-2.8% of Cr, 0.6-0.9% of Mo, 0.2-0.5% of Nb, 0.1-0.2% of Co, 0.05-0.1% of Na, 0.22-0.28% of Ti, and the balance Fe. By means of the centrifugal pouring mode and the parkerizing mode, the mechanical strength is good, and the impact toughness is high; and besides, as most ingredients are conventional elements, the production cost is low, and the method is worth popularizing.

Description

A kind of high rigidity ball mill grinding preparation
Technical field
The present invention relates to milling material field, particularly belongs to a kind of high rigidity ball mill grinding preparation.
Background technology
Crushing medium in ball mill is that, for the material in crushing mill, a kind of is white with chromium as main alloy element Mouth cast iron abbreviation chrome alloy cast iron, the cast grinding ball with chrome alloy cast iron as material is referred to as chromium alloy iron casting abrading ball；Another kind is Cast grinding ball with spheroidal graphite cast-iron as material is referred to as ductile iron abrading-ball, wear-resistant ball be mainly used in metallurgical mine, cement building material, The industry such as thermal power generation powder produces the capital equipment with processing, and in the ball mill course of work, abrading-ball belongs to main vulnerable part, Very big is affected on use cost；With industrial expansion, various large-size ball mill increases year by year, and the consumption of abrading-ball also significantly increases It is long.And existing wear-resistant ball texture is coarse, than relatively low, impact flexibility is low, the isometric shortcoming of anti-wear performance difference for hardness.In existing State's patent is well a kind of wear-resistant ball patents of 201310658525.X, and weight ratio is wherein used in the wear-resistant ball for 0.05-0.10% Rare earth, wear-resistant ball is normal running stores, relatively costly using rare earth.
The content of the invention
It is an object of the invention to provide a kind of high rigidity ball mill grinding preparation, by centrifugal casting mode and Phosphorating treatment mode, mechanical strength properties are good, impact flexibility is high, and wherein composition mostly is conventional element, low production cost, just In popularization.
Technical scheme is as follows：
A kind of high rigidity ball mill grinding preparation, includes following processing step：
1）, molten steel is made up of following mass percent alloying component：1.45%≤C≤1.65%, 1.55≤Si≤1.75%, 1.3% ≤ Mn≤1.5%, 0.008≤P≤0.012%, 0.008≤S≤0.012%, 2.2%≤Cr≤2.8%, 0.6%≤Mo≤0.9%, 0.2≤Nb≤0.5%, 0.1≤Co≤0.2%, 0.05≤Na≤0.1%, 0.22≤Ti≤0.28%, balance of Fe；
2）, the molten steel for preparing under the influence of centrifugal force die cavity is steadily entered by bottom filling running channel, liquation is in metal mold Quick solidification shaping under chilling action, controls poring rate for 220-332g/s；
3）During abrasive body casting temperature air cooling to 440 DEG C～500 DEG C, water-cooled is carried out after insulation 30-40 minutes, after water-cooled outside Jing See and carry out phosphorating treatment after checking and accepting, carry out at a temperature of 120-135 DEG C, the free acidity of phosphate solution is in the ratio of total acidity It is worth for 2: 3-4, process time is 25-35 minutes.
The step 3）When abrasive body casting temperature air cooling is to 470 DEG C, insulation carries out afterwards water-cooled, Jing after water-cooled in 35 minutes Outward appearance carries out phosphorating treatment after checking and accepting, and carries out at a temperature of 127 DEG C, and the free acidity of phosphate solution is in the ratio of total acidity For 2: 3.5, process time is 30 minutes.
Jing ultrasonic examinations detection of the present invention, the internal flaw of material has obtained effective elimination, and raw material is drawn materials conveniently, while Cost is relatively low, and by centrifugal casting mode and phosphorating treatment mode, mechanical strength properties are good, impact flexibility is high, and wherein into Divide and mostly be conventional element, low production cost is easy to promote.
Specific embodiment
A kind of high rigidity ball mill grinding preparation, includes following processing step：
1）, molten steel is made up of following mass percent alloying component：1.45%≤C≤1.65%, 1.55≤Si≤1.75%, 1.3% ≤ Mn≤1.5%, 0.008≤P≤0.012%, 0.008≤S≤0.012%, 2.2%≤Cr≤2.8%, 0.6%≤Mo≤0.9%, 0.2≤Nb≤0.5%, 0.1≤Co≤0.2%, 0.05≤Na≤0.1%, 0.22≤Ti≤0.28%, balance of Fe；
2）, the molten steel for preparing under the influence of centrifugal force die cavity is steadily entered by bottom filling running channel, liquation is in metal mold Quick solidification shaping under chilling action, controls poring rate for 226g/s；
3）When abrasive body casting temperature air cooling is to 470 DEG C, insulation carries out afterwards water-cooled in 35 minutes, and Jing outward appearances are checked and accepted laggard after water-cooled Row phosphorating treatment, is carried out at a temperature of 127 DEG C, and the free acidity of phosphate solution is 2: 3.5 in the ratio of total acidity, is processed Time is 30 minutes.
The high rigidity ball mill abrasive body test data of present invention production：Tensile strength sigma b >=840MPa；Yield strength σ0.2≥610MPa；Elongation percentage δ5(‰) ≥3.9；Contraction percentage of area ψ (‰) >=14.2；Hardness HRC30-32.

Claims (2)

1. a kind of high rigidity ball mill is used and grinds preparation, it is characterised in that include following processing step：
1）, molten steel is made up of following mass percent alloying component：1.45%≤C≤1.65%, 1.55≤Si≤1.75%, 1.3% ≤ Mn≤1.5%, 0.008≤P≤0.012%, 0.008≤S≤0.012%, 2.2%≤Cr≤2.8%, 0.6%≤Mo≤0.9%, 0.2≤Nb≤0.5%, 0.1≤Co≤0.2%, 0.05≤Na≤0.1%, 0.22≤Ti≤0.28%, balance of Fe；
2）, the molten steel for preparing under the influence of centrifugal force die cavity is steadily entered by bottom filling running channel, liquation is in metal mold Quick solidification shaping under chilling action, controls poring rate for 220-332g/s；
3）During abrasive body casting temperature air cooling to 440 DEG C～500 DEG C, water-cooled is carried out after insulation 30-40 minutes, after water-cooled outside Jing See and carry out phosphorating treatment after checking and accepting, carry out at a temperature of 120-135 DEG C, the free acidity of phosphate solution is in the ratio of total acidity It is worth for 2: 3-4, process time is 25-35 minutes.
2. high rigidity ball mill according to claim 1 is used and grinds preparation, it is characterised in that the step 3）Grind When mill body casting temperature air cooling is to 470 DEG C, insulation carries out afterwards water-cooled in 35 minutes, carries out at phosphatization Jing after outward appearance examination after water-cooled Reason, is carried out at a temperature of 127 DEG C, and the free acidity of phosphate solution is 2: 3.5 in the ratio of total acidity, and process time is 30 Minute.
CN201611010055.6A 2016-11-17 2016-11-17 Preparation method of grinder of high-hardness ball grinding mill Pending CN106636946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611010055.6A CN106636946A (en) 2016-11-17 2016-11-17 Preparation method of grinder of high-hardness ball grinding mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611010055.6A CN106636946A (en) 2016-11-17 2016-11-17 Preparation method of grinder of high-hardness ball grinding mill

Publications (1)

Publication Number Publication Date
CN106636946A true CN106636946A (en) 2017-05-10

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101135026A (en) * 2006-09-01 2008-03-05 河南科技大学 Vertical grinding hollow abrading-resistant ball chemical composition control and thermal treatment process
CN104099532A (en) * 2014-07-31 2014-10-15 宁国市宁武耐磨材料有限公司 Heat resistant, high-strength and wear resistant ball with high hardness for ball grinder
CN105483522A (en) * 2015-12-28 2016-04-13 合肥中澜新材料科技有限公司 Manufacturing process of aluminum alloy tensile bolt
CN105537592A (en) * 2015-12-30 2016-05-04 安徽悦众车身装备有限公司 Powder metallurgy preparation method of shifting fork for automobile gearbox
CN105543632A (en) * 2015-12-28 2016-05-04 合肥中澜新材料科技有限公司 Preparation method of high-strength roller bearing outer ring
CN105880948A (en) * 2016-05-24 2016-08-24 安庆银泰轴承有限公司 Preparation method of linings for bearing of air conditioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101135026A (en) * 2006-09-01 2008-03-05 河南科技大学 Vertical grinding hollow abrading-resistant ball chemical composition control and thermal treatment process
CN104099532A (en) * 2014-07-31 2014-10-15 宁国市宁武耐磨材料有限公司 Heat resistant, high-strength and wear resistant ball with high hardness for ball grinder
CN105483522A (en) * 2015-12-28 2016-04-13 合肥中澜新材料科技有限公司 Manufacturing process of aluminum alloy tensile bolt
CN105543632A (en) * 2015-12-28 2016-05-04 合肥中澜新材料科技有限公司 Preparation method of high-strength roller bearing outer ring
CN105537592A (en) * 2015-12-30 2016-05-04 安徽悦众车身装备有限公司 Powder metallurgy preparation method of shifting fork for automobile gearbox
CN105880948A (en) * 2016-05-24 2016-08-24 安庆银泰轴承有限公司 Preparation method of linings for bearing of air conditioner

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