CN104178685A - Abrasion-resistant alloy material and composite modification treatment method thereof - Google Patents
Abrasion-resistant alloy material and composite modification treatment method thereof Download PDFInfo
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- CN104178685A CN104178685A CN201410388805.8A CN201410388805A CN104178685A CN 104178685 A CN104178685 A CN 104178685A CN 201410388805 A CN201410388805 A CN 201410388805A CN 104178685 A CN104178685 A CN 104178685A
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Abstract
The invention discloses an abrasion-resistant alloy material and a composite modification treatment method thereof. The abrasion-resistant alloy material comprises the following raw material components in percentage by weight: 2.0-3.0% of C, 0.30-1.00% of Si, 0.20-1.00% of Mn, 11.00-14.00% of Cr, 0.05-0.20% of Mo, 0.003-0.010% of B, 0.010-0.030% of Ti, 0.05%-0.15% of V and the balance of F3, wherein the weight ratio of Ti to B is more than 2.5, the weight ratio of V to Ti is more than 3. The abrasion-resistant alloy material is obtained by adopting a special composite modification treatment process. High-chromium grinding balls obtained by adopting the formula and processing technology have the characteristics of good abrasion resistance, high hardness, high toughness and high impact resistance.
Description
Technical field
The present invention relates to wear resistant alloy technical field, more specifically, is a kind of wear resistant alloy material and composite inoculating treatment process thereof.
Background technology
Wearing and tearing are many industrial sector ubiquities and become a major reason that causes equipment failure or material damage, and it has also consumed a large amount of energy and material simultaneously.The various engineering excavation machines of being manufactured by wear-resistant alloy cast steel and shovel loader bucket tooth, various Wearproof transfer piping made, various grinder hammerhead and jaw, various grip-pad, due in working conditions such as high strength, atrocious weather, its wear pattern is more serious.
The current state of the art is: a class is to emphasize the high tenacity of material, and a class is to emphasize the resistance to abrasion of material.And cannot reach an effectively unification, especially in the application in the engineering machinery such as outdoor mining, excavation.The wear resistance of high mangaenese steel is with good conditionsi, and its yield strength is low, easily deformable; Low, interalloy wear resisting steel has good obdurability, and the wear resistance under low, middle shock load is better than high mangaenese steel, but has hardening capacity and the low problem of hardenability, and wear resistance is poor; In rich chromium cast iron tissue, contain the high rigidity eutectic carbides that surpasses 20%, have excellent wear resistance, but exist, alloying element content is high, production cost is high and the deficiency of the yielding cracking of high-temperature heat treatment; Ordinary white cast iron and low-alloy chilled cast iron carbide hardness are low, and carbide is continuous shape and distributes, and fragility is large, easily peel off even cracking in use.
For present situation, obtain that a kind of production technique is simple, cost is low, obdurability is high, hardening capacity and hardenability good and pollution-free, guarantee the works fine in low temperature environment simultaneously, and become a technical problem at the lower wear-resistant alloy cast steel that also can well use of multiplex (MUX) ore deposit condition.People also recognize simultaneously provides thermal treatment process and the establishment treatment process that a kind of new alloying constituent with wear-resistant alloy cast steel adapts to be not only the sport technique segment of manufacturing wear-resistant alloy cast steel, simultaneously, reasonably thermal treatment process also will have positive effect to the mechanical property of wear-resistant alloy cast steel, and alloying constituent is used more effectively.
Summary of the invention
The object of the invention is to provide a kind of wear resistant alloy material and composite inoculating complete processing thereof, by adopting unique formula and composite inoculating complete processing, by the product of casting of the present invention, there is the feature of high abrasion, high rigidity, high tenacity and high impact resistance.
The present invention realizes by following technique means:
A kind of wear-resistant metal material, contain by weight percentage following component: 2.0%～3.0% C, 0.30%～1.00% Si, 0.20%～1.00% Mn, 11.00%～14.00% Cr, 0.05%～0.20% Mo, 0.003%～0.010% B, 0.010%～0.030% Ti, 0.05%～0.15% V and the Fe of surplus are raw material, wherein, the weight ratio that the weight ratio of Ti and B is greater than 2.5, V and Ti is greater than 3.
The composite inoculating complete processing of wear-resistant metal material of the present invention, comprises the following steps:
(1) iron and steel is carried out to composition detection, choose C, P, iron and steel that S content is qualified is major ingredient, by proportional range claimed in claim 1, add ferrochrome again, send into the melting that heats up in smelting furnace, when molten iron temperature reaches 1450～1480 ℃, chemical composition analysis is carried out in sampling, and by finely tuning to control the weight percent of each composition, when temperature reaches 1500～1510 ℃, carry out successively bulk deoxidation and final deoxygenation;
(2) by molten steel cools to 1490～1500 ℃ of deoxidation in step (1), to being sprinkled into skim agent in smelting furnace and scratching clean in stove after slag, by weight ratio described in claim 1 ferro-boron, molybdenum-iron and ferrotianium that to add through 200 ℃ of granularities of toasting be 5～10mm, continue melting 3～5 minutes, complete once rotten processing in stove, after final deoxygenation, come out of the stove;
(3) preparation of secondary metamorphic agent: get by weight percentage industrial potassium nitrate 20%, through the rare earth ferrosilicon alloy 75% of 150 ℃ of bakings, mix and be mixed with secondary metamorphic agent through the rare earth magnesium ferrosilicon alloy 5% of 150 ℃ of bakings, the granularity of wherein said rare earth ferrosilicon alloy is 1～10mm, and the weight percent of rare earth is 20～22%; The granularity of described rare earth magnesium ferrosilicon alloy is 2～8mm, and the weight percent of rare earth is 6～9%, and the weight percent of magnesium is 6～8%;
(4) at 1520～1530 ℃, with the secondary metamorphic agent of gained in step (3), the molten iron through once going bad after processing in step (2) is carried out to secondary metamorphic processing with pouring method in bag, wherein, the weight ratio of described secondary metamorphic agent and molten iron is 1:260～1:250;
(5) to adding skim agent in the molten iron through secondary metamorphic is processed and scratching clean in bag bits 2～3 times, be sprinkled into again subsequently one deck skim agent, and be poured with interior at 15 minutes, obtain foundry goods;
(6) foundry goods is warming up to 930～960 ℃, carries out quench hot, tempering at 340～360 ℃, wherein, the soaking time of described quench hot is every 25mm wall thickness insulation 1 hour, and the soaking time of described tempering is every 25mm wall thickness insulation 1.5～2 hours, obtains finished product.
Described quench hot is selected from air quenching or oil quenching.
The present invention adopts specific component prescription, by composite inoculating, process, carry out twice respectively, once in stove, once bag in, realized the object of high abrasion, high rigidity, high tenacity and the anti-high impact property of the super wear-resistant product of gained (as: abrasion-proof steel ball grinder hammerhead and jaw, various grip-pad), thus extended product work-ing life, save energy consumption and raw-material consumption, reduced operation cost.
Embodiment
By embodiment, further describe the present invention below, as known by the technical knowledge, the present invention also can describe by other the scheme that does not depart from the technology of the present invention feature, and therefore changes within the scope of the present invention all or that be equal in the scope of the invention are all included in the invention.
embodiment 1:
Be prepared as follows the many Alloy Balls In Millings of super wear-resistant high chromium:
(1) 100 kilograms of iron and steel are carried out to composition detection, according to detected result, its C, S, the content of P is all within the scope requiring, the kind of other elements that contain meets the requirements, and content does not all exceed standard, in detecting qualified iron and steel, add the ferrochrome that 24 kilograms of chrome contents are 58%, send into the melting that heats up in smelting furnace, when molten iron temperature reaches 1460 ℃, chemical composition analysis is carried out in sampling, C:2.12%, Si:0.56%, Mn:0.53%, P:0.031%, S:0.022%, Cr:11.6%, Mo:0.11%, B:0.0085%, Ti:0.021%, V:0.097%, all the components content is all in the scope requiring, without fine setting, when temperature reaches 1530 ℃, carry out successively bulk deoxidation and final deoxygenation, (2) by the molten steel cools to 1500 ℃ of deoxidation in step (1), to being sprinkled into 500 grams of skim agents in smelting furnace and scratching clean in stove after slag, add the ferro-boron that 0.04 kilogram of boron-containing quantity toasting is 18%, the molybdenum-iron and the 0.08 kilogram of ferrotianium that the titaniferous amount of toasting is 30% that are 55% containing molybdenum amount that 0.22 kilogram was toasted, continue melting 3 minutes, complete once rotten processing in stove, after final deoxygenation, come out of the stove,
(3) preparation of secondary metamorphic agent: get 100 grams of industrial potassium nitrates, 370 grams of rare earth ferrosilicon alloys through 150 ℃ of bakings, 27 grams of rare earth magnesium ferrosilicon alloy through 150 ℃ of bakings and mix and be mixed with secondary metamorphic agent, the granularity of wherein said rare earth ferrosilicon alloy is 8mm, and the weight percent of rare earth is 21%; The granularity of described rare earth magnesium ferrosilicon alloy is 6mm, and the weight percent of rare earth is 8%, and the weight percent of magnesium is 7%;
(4) at 1520 ℃, with the secondary metamorphic agent of gained in step (3), the molten iron through once going bad after processing in step (2) is carried out to secondary metamorphic processing with pouring method in bag, wherein, the weight ratio of described secondary metamorphic agent and molten iron is 1:250;
(5) to adding 100 grams of skim agents in the molten iron through secondary metamorphic is processed and scratching clean in bag bits 2～3 times, be sprinkled into again subsequently 50 grams of skim agents, within 10 minutes, being poured into the mould of the many Alloy Balls In Millings of wear-resistant high chromium, obtain the foundry goods of the many Alloy Balls In Millings of wear-resistant high chromium;
(6) foundry goods is warming up to 960 ℃, carries out high temperature oil quenching, tempering at 350 ℃, wherein, the soaking time of described quench hot is every 25mm wall thickness insulation 1 hour, and the soaking time of described tempering is every 25mm wall thickness insulation 2 hours, obtains the finished product of the many Alloy Balls In Millings of wear-resistant high chromium.
embodiment 2:
Be prepared as follows grip-pad:
(1) 60 kilograms of iron and steel are carried out to composition detection, according to detected result, its C, S, the content of P is all within the scope requiring, the kind of other elements that contain meets the requirements, and content does not all exceed standard, in detecting qualified iron and steel, adding 17 kilograms of chrome contents is 58% ferrochrome, send into the melting that heats up in smelting furnace, when molten iron temperature reaches 1460 ℃, chemical composition analysis is carried out in sampling, analytical results is C:2.74%, Si:0.48%, Mn:0.54%, P:0.031%, S:0.032%, Cr:12.35%, Mo:0.07%, B:0.0044%, Ti:0.017%, V:0.061%, all the components content is all in the scope requiring, without fine setting, when temperature reaches 1500 ℃, carry out successively bulk deoxidation and final deoxygenation,
(2) by the molten steel cools to 1480 ℃ of deoxidation in step (1), to being sprinkled into 500 grams of skim agents in smelting furnace and scratching clean in stove after slag, adding 0.03 kilogram of boron-containing quantity toasting is that 18% ferro-boron, 0.20 kilogram of molybdenum-iron and 0.07 kilogram of titaniferous amount of toasting of being 55% containing molybdenum amount of toasting are 30% ferrotianium, continue melting 3 minutes, complete once rotten processing in stove, after final deoxygenation, come out of the stove;
(3) preparation of secondary metamorphic agent: get 60 grams of industrial potassium nitrates, 225 grams of rare earth ferrosilicon alloys through 150 ℃ of bakings, 15 grams of rare earth magnesium ferrosilicon alloy through 150 ℃ of bakings and mix and be mixed with secondary metamorphic agent, the granularity of wherein said rare earth ferrosilicon alloy is 8mm, and the weight percent of rare earth is 21%; The granularity of described rare earth magnesium ferrosilicon alloy is 6mm, and the weight percent of rare earth is 8%, and the weight percent of magnesium is 7%;
(4) at 1520 ℃, with the secondary metamorphic agent of gained in step (3), the molten iron through once going bad after processing in step (2) is carried out to secondary metamorphic processing with pouring method in bag, wherein, the weight ratio of described secondary metamorphic agent and molten iron is 1:250;
(5) to adding 100 grams of skim agents in the molten iron through secondary metamorphic is processed and scratching clean in bag bits 2～3 times, be sprinkled into again subsequently 50 grams of skim agents, within 10 minutes, being poured into the mould of grip-pad, obtain the foundry goods of grip-pad;
(6) foundry goods is warming up to 960 ℃, carries out high temperature oil quenching, tempering at 350 ℃, wherein, the soaking time of described quench hot is every 25mm wall thickness insulation 1 hour, and the soaking time of described tempering is every 25mm wall thickness insulation 1.5 hours, obtains the finished product of grip-pad.
comparative example:
Adopt on market, buy with embodiment in the existing abrading-ball embodiment as a comparison of same size.
performance test
1, hardness test
Adopt the Rockwell hardometer that model is HR-150A to carry out hardness test to the abrading-ball in embodiment and comparative example 1, test result is as shown in table 1.
Table 1:
。
2, shock resistance test
On the shock-testing machine that is JB-50 in model, specification is greater than to the embodiment of Φ 50 and comparative example's abrading-ball carries out shock resistance test, test result is as shown in table 2.
Test result is as shown in table 2:
Table 2:
。
3, wear out failure test
On the falling sphere test machine that is LX-001 in model, specification is greater than to the embodiment of Φ 50 and comparative example's abrading-ball carries out wear out failure test, test result is as shown in table 3.
Table 3:
。
In sum, utilizing many Alloy Balls In Millings of super wear-resistant high chromium that the present invention makes to have high rigidity, high tenacity, excellent wear resistance and shock resistance, is desirable grinding machine ball.
Claims (3)
1. a wear-resistant metal material, it is characterized in that, contain by weight percentage following component: 2.0%～3. 0% C, 0.30%～1.00% Si, 0.20%～1.00% Mn, 11.00%～14.00% Cr, 0.05%～0.20% Mo, 0.003%～0.010% B, 0.010%～0.030% Ti, 0.05%～0.15% V and the Fe of surplus are raw material, wherein, the weight ratio that the weight ratio of Ti and B is greater than 2.5, V and Ti is greater than 3.
2. a composite inoculating complete processing for processing wear-resistant metal material claimed in claim 1, is characterized in that, comprises the following steps:
(1) iron and steel is carried out to composition detection, choose C, P, iron and steel that S content is qualified is major ingredient, by proportional range claimed in claim 1, add ferrochrome again, send into the melting that heats up in smelting furnace, when molten iron temperature reaches 1480～1500 ℃, chemical composition analysis is carried out in sampling, and by finely tuning to control the weight percent of each composition, when temperature reaches 1540～1560 ℃, carry out successively bulk deoxidation and final deoxygenation;
(2) by molten steel cools to 1510～1520 ℃ of deoxidation in step (1), to being sprinkled into skim agent in smelting furnace and scratching clean in stove after slag, by weight ratio described in claim 1 ferro-boron, molybdenum-iron and ferrotianium that to add through 200 ℃ of granularities of toasting be 5～10mm, continue melting 3～5 minutes, complete once rotten processing in stove, after final deoxygenation, come out of the stove;
(3) preparation of secondary metamorphic agent: get by weight percentage industrial potassium nitrate 20%, through the rare earth ferrosilicon alloy 75% of 150 ℃ of bakings, mix and be mixed with secondary metamorphic agent through the rare earth magnesium ferrosilicon alloy 5% of 150 ℃ of bakings, the granularity of wherein said rare earth ferrosilicon alloy is 1～10mm, and the weight percent of rare earth is 20～2%; The granularity of described rare earth magnesium ferrosilicon alloy is 2～8mm, and the weight percent of rare earth is 6～9%, and the weight percent of magnesium is 6～8%;
(4) at 1540～1560 ℃, with the secondary metamorphic agent of gained in step (3), the molten iron through once going bad after processing in step (2) is carried out to secondary metamorphic processing with pouring method in bag, wherein, the weight ratio of described secondary metamorphic agent and molten iron is 1:260～1:250;
(5) to adding skim agent in the molten iron through secondary metamorphic is processed and scratching clean in bag bits 2～3 times, be sprinkled into again subsequently one deck skim agent, and be poured with interior at 15 minutes, obtain foundry goods;
(6) foundry goods is warming up to 930～960 ℃, carries out quench hot, tempering at 340～360 ℃, wherein, the soaking time of described quench hot is every 25mm wall thickness insulation 1 hour, obtains finished product.
3. composite inoculating complete processing according to claim 2, is characterized in that: described quench hot is selected from air quenching or oil quenching.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561809A (en) * | 2014-12-31 | 2015-04-29 | 宁国市双林工贸有限公司 | High-strength wear-resistant steel ball for ball mill |
| CN104561810A (en) * | 2014-12-31 | 2015-04-29 | 宁国市双林工贸有限公司 | High-chromium low-sulfur low-phosphorous wear resistant ball |
| CN105316585A (en) * | 2015-10-28 | 2016-02-10 | 安徽省三方新材料科技有限公司 | High-chrome low-carbon steel abrasion-resistant bucket tooth top |
| CN115976413A (en) * | 2022-12-27 | 2023-04-18 | 广东省科学院新材料研究所 | Wear-resistant alloy cast steel and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103667866A (en) * | 2013-11-16 | 2014-03-26 | 宁国市开源电力耐磨材料有限公司 | Special high-chromium grinding ball for mining and secondary modification processing technique thereof |
| CN103667865A (en) * | 2013-11-16 | 2014-03-26 | 宁国市开源电力耐磨材料有限公司 | Ultrahigh-wear-resistance high-chromium multi-alloy grinding ball and composite modification processing technique thereof |
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- 2014-08-08 CN CN201410388805.8A patent/CN104178685A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103667866A (en) * | 2013-11-16 | 2014-03-26 | 宁国市开源电力耐磨材料有限公司 | Special high-chromium grinding ball for mining and secondary modification processing technique thereof |
| CN103667865A (en) * | 2013-11-16 | 2014-03-26 | 宁国市开源电力耐磨材料有限公司 | Ultrahigh-wear-resistance high-chromium multi-alloy grinding ball and composite modification processing technique thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561809A (en) * | 2014-12-31 | 2015-04-29 | 宁国市双林工贸有限公司 | High-strength wear-resistant steel ball for ball mill |
| CN104561810A (en) * | 2014-12-31 | 2015-04-29 | 宁国市双林工贸有限公司 | High-chromium low-sulfur low-phosphorous wear resistant ball |
| CN105316585A (en) * | 2015-10-28 | 2016-02-10 | 安徽省三方新材料科技有限公司 | High-chrome low-carbon steel abrasion-resistant bucket tooth top |
| CN115976413A (en) * | 2022-12-27 | 2023-04-18 | 广东省科学院新材料研究所 | Wear-resistant alloy cast steel and preparation method and application thereof |
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Application publication date: 20141203 |