CN105463332A - Casting steel capable of being used for producing mining truck axle housing - Google Patents
Casting steel capable of being used for producing mining truck axle housing Download PDFInfo
- Publication number
- CN105463332A CN105463332A CN201511011310.4A CN201511011310A CN105463332A CN 105463332 A CN105463332 A CN 105463332A CN 201511011310 A CN201511011310 A CN 201511011310A CN 105463332 A CN105463332 A CN 105463332A
- Authority
- CN
- China
- Prior art keywords
- steel
- minutes
- axle housing
- heated
- truck axle
- Prior art date
- 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.)
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/16—Axle housings
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses casting steel capable of being used for producing a mining truck axle housing. The casting steel is prepared from, by weight, 95-98 parts of waste steel (the iron content is not smaller than 98%), 2-3 parts of Z18 pig iron, 0.4-0.45 part of crystal silicon, 0.3-0.34 part of carbon, 0.2-0.24 part of cerium, 0.4-0.5 part of calcium, 0.9-1.1 parts of manganese, 1.2-1.3 parts of chromium, 0.05-0.06 part of molybdenum, 0.8-0.86 part of calcium silicide, 0.1-0.12 part of a silica solution, 0.2-0.25 part of industrial starch, 0.5-0.6 part of barium sulfate, 0.3-0.35 part of waste glass and not larger than 0.01 part of impurities. According to the casting steel capable of being used for producing the mining truck axle housing, cerium, calcium and other elements are added in the steel casting process, the fluidity and the heat crack performance of the casting steel are improved due to addition of a mixed de-oxidizing agent, the machining performance is improved, the product subjected to heat treatment is high in strength, plasticity and heat crack resistance, and requirements of various mining truck axle housings are met.
Description
Technical field
The present invention relates to cast material technical field, particularly relate to a kind of casting steel that can be used for mine truck axle housing and produce.
Background technology
Automotive axle is one of vehicle key component, and it is the integral part of power train, is also the important component part of running gear.Automobile axle housing, as the main part of vehicle bridge, is ensure that automobile normally runs the key part with work-ing life, so all have higher requirements to its physical strength, rigidity and fatigue performance etc.Axle housing production cost accounts for 30 percent of driving axis basis.Particularly heavy-duty car is operationally because road and operating mode are severe, and axle housing subjects strong shock load, higher to the quality requirements of axle housing.Plate weldering axle housing, due to the restriction by self structure and weldprocedure, in use easily deforms, occurs the phenomenon such as leakage of oil and crackle, be difficult to the need of work meeting heavy-duty car.For this reason, in order to meet the needs that automobile bearing capacity increases, the especially demand of heavy-duty car, needs to research and develop a kind of cast steel material, meets the needs of automotive axle, can obtain certain economic and social benefit simultaneously.The intensity hardness of as cast condition cast steel is very low, impact is poor, cannot meet the service requirements of material, must carry out suitable thermal treatment, to guarantee the safety applications of high-strength toughness low alloy cast steel, utilizes thermal treatment process to excavate cast steel potential simultaneously, expands its range of application.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of casting steel that can be used for mine truck axle housing and produce.
The present invention is achieved by the following technical solutions:
Can be used for the casting steel that mine truck axle housing is produced, be made up of the raw material of following weight part: steel scrap (iron level is not less than 98%) 95-98, Z18 pig iron 2-3, silicon metal 0.4-0.45, carbon 0.3-0.34, cerium 0.2-0.24, calcium 0.4-0.5, manganese 0.9-1.1, chromium 1.2-1.3, molybdenum 0.05-0.06, calcium silicide 0.8-0.86, silicon sol 0.1-0.12, industrial starch 0.2-0.25, barium sulfate 0.5-0.6, cullet 0.3-0.35, impurity≤0.01.
Described a kind of casting steel that can be used for mine truck axle housing and produce, is prepared from by following concrete steps:
(1) all instruments and mould are carried out heat treated under 250 DEG C of conditions, for subsequent use after taking out; Steel scrap, the Z18 pig iron, carbon, silicon metal being carried out being broken into small-particle respectively, then puts into ball mill, passing under argon gas state ball milling 4 hours, obtaining composite powder; In vacuum induction furnace, drop into composite powder, heat up and be heated to complete melting, then hot rolling, makes steel billet after cooling;
(2) cullet is put into pulverizer to pulverize, cross 200 mesh sieves, then mix with calcium silicide, barium sulfate, put into ball mill ball milling 30 minutes, add the water of total amount 2 times amount, silicon sol after taking-up, sonic oscillation 30 minutes, leave standstill and filter, filter cake is dried under the condition of 80 DEG C, obtains mixed powder; The water of industrial starch with 3 times amount is mixed, is heated to 60 DEG C while stirring, form starch paste; Starch paste and mixed powder are put into tablets press extruding pelletization jointly, particle is sent into baking oven to send in sintering oven with 8 DEG C/min of ramp to 480 DEG C after dry 30 minutes with the temperature of 100 DEG C, sinter 80 minutes, take out and be cooled to room temperature, obtain mixing reductor;
(3) steel billet that step (1) obtains is put into medium-frequency induction furnace and be heated to molten state, be incubated and remove slag after 1 hour, until furnace charge molten clear after, add all the other remaining components and carry out melting, tap after temperature being raised to 1630-1660 DEG C, add the composite deoxidant that step (2) obtains and carry out final deoxidation, then remove the gred, after temperature reaches 1550 DEG C, mixing molten steel is poured in the sand mold of well in advance;
(4) foundry goods is through unpacking, heat-treating after sand removal, foundry goods is sent into be full of in the chamber type electric resistance furnace of nitrogen and is heated to 880 DEG C, be incubated 60 minutes, then foundry goods is taken out air cooling, to be cooledly to room temperature, continue to be fed into tempering in chamber type electric resistance furnace, be heated to 580 DEG C of insulations 90 minutes, taking-up air cooling is to room temperature and get final product.
Advantage of the present invention is: the present invention, by scientific and reasonable composition proportion, adopts steel scrap as main iron, by the method for mechanical alloying in advance, achieves the compound of iron, carbon, element silicon; The composite deoxidant with vesicular structure is made by suitable technique by adding the compositions such as calcium silicide in the preparation technology of cast steel, can fast and molten steel react, there is the effect of good deoxidation, desulfurization, carburetting, fluidity molten steel can be improved simultaneously, effective removal inclusion content in melting steel, improves Molten Steel Cleanliness; Again by reasonable thermal treatment process easily, obtain the cast steel material that a kind of intensity is high, plasticity good, low-temperature flexibility is good over-all properties is high.
The present invention adds the element such as cerium, calcium in cast steel process, coordinate the interpolation of mixing reductor, improve the mobility of cast steel, hot tearing performance, improve processing characteristics, product after making thermal treatment has high strength, high-ductility, high heat-resistant cracking, meets the requirement of various mine truck axle housing, special mechanical production.
Embodiment
Can be used for the casting steel that mine truck axle housing is produced, be made up of the raw material of following weight part (kilogram): steel scrap (iron level is not less than 98%) 95, the Z18 pig iron 2, silicon metal 0.4, carbon 0.3, cerium 0.2, calcium 0.4, manganese 0.9, chromium 1.2, molybdenum 0.05, calcium silicide 0.8, silicon sol 0.1, industrial starch 0.2, barium sulfate 0.5, cullet 0.3, impurity≤0.01.
Described a kind of casting steel that can be used for mine truck axle housing and produce, is prepared from by following concrete steps:
(1) all instruments and mould are carried out heat treated under 250 DEG C of conditions, for subsequent use after taking out; Steel scrap, the Z18 pig iron, carbon, silicon metal being carried out being broken into small-particle respectively, then puts into ball mill, passing under argon gas state ball milling 4 hours, obtaining composite powder; In vacuum induction furnace, drop into composite powder, heat up and be heated to complete melting, then hot rolling, makes steel billet after cooling;
(2) cullet is put into pulverizer to pulverize, cross 200 mesh sieves, then mix with calcium silicide, barium sulfate, put into ball mill ball milling 30 minutes, add the water of total amount 2 times amount, silicon sol after taking-up, sonic oscillation 30 minutes, leave standstill and filter, filter cake is dried under the condition of 80 DEG C, obtains mixed powder; The water of industrial starch with 3 times amount is mixed, is heated to 60 DEG C while stirring, form starch paste; Starch paste and mixed powder are put into tablets press extruding pelletization jointly, particle is sent into baking oven to send in sintering oven with 8 DEG C/min of ramp to 480 DEG C after dry 30 minutes with the temperature of 100 DEG C, sinter 80 minutes, take out and be cooled to room temperature, obtain mixing reductor;
(3) steel billet that step (1) obtains is put into medium-frequency induction furnace and be heated to molten state, be incubated and remove slag after 1 hour, until furnace charge molten clear after, add all the other remaining components and carry out melting, tap after temperature being raised to 1630 DEG C, add the composite deoxidant that step (2) obtains and carry out final deoxidation, then remove the gred, after temperature reaches 1550 DEG C, mixing molten steel is poured in the sand mold of well in advance;
(4) foundry goods is through unpacking, heat-treating after sand removal, foundry goods is sent into be full of in the chamber type electric resistance furnace of nitrogen and is heated to 880 DEG C, be incubated 60 minutes, then foundry goods is taken out air cooling, to be cooledly to room temperature, continue to be fed into tempering in chamber type electric resistance furnace, be heated to 580 DEG C of insulations 90 minutes, taking-up air cooling is to room temperature and get final product.
Product of the present invention carries out bench testing according to QC/T533-1999 " automobile drive axle Bench test methods " and QC/T534-1999 " automobile drive axle bench testing evaluation index ", its vertical curve fatigue life test cycle index is more than or equal to 800,000 times, vertical curve test of static strength ultimate load is more than or equal to 800KN, all meets automobile industry standard.
Claims (2)
1. the casting steel that can be used for mine truck axle housing and produce, it is characterized in that, be made up of the raw material of following weight part: steel scrap (iron level is not less than 98%) 95-98, Z18 pig iron 2-3, silicon metal 0.4-0.45, carbon 0.3-0.34, cerium 0.2-0.24, calcium 0.4-0.5, manganese 0.9-1.1, chromium 1.2-1.3, molybdenum 0.05-0.06, calcium silicide 0.8-0.86, silicon sol 0.1-0.12, industrial starch 0.2-0.25, barium sulfate 0.5-0.6, cullet 0.3-0.35, impurity≤0.01.
2. according to claim 1 a kind of can be used for mine truck axle housing produce casting steel, it is characterized in that, be prepared from by following concrete steps:
(1) all instruments and mould are carried out heat treated under 250 DEG C of conditions, for subsequent use after taking out; Steel scrap, the Z18 pig iron, carbon, silicon metal being carried out being broken into small-particle respectively, then puts into ball mill, passing under argon gas state ball milling 4 hours, obtaining composite powder; In vacuum induction furnace, drop into composite powder, heat up and be heated to complete melting, then hot rolling, makes steel billet after cooling;
(2) cullet is put into pulverizer to pulverize, cross 200 mesh sieves, then mix with calcium silicide, barium sulfate, put into ball mill ball milling 30 minutes, add the water of total amount 2 times amount, silicon sol after taking-up, sonic oscillation 30 minutes, leave standstill and filter, filter cake is dried under the condition of 80 DEG C, obtains mixed powder; The water of industrial starch with 3 times amount is mixed, is heated to 60 DEG C while stirring, form starch paste; Starch paste and mixed powder are put into tablets press extruding pelletization jointly, particle is sent into baking oven to send in sintering oven with 8 DEG C/min of ramp to 480 DEG C after dry 30 minutes with the temperature of 100 DEG C, sinter 80 minutes, take out and be cooled to room temperature, obtain mixing reductor;
(3) steel billet that step (1) obtains is put into medium-frequency induction furnace and be heated to molten state, be incubated and remove slag after 1 hour, until furnace charge molten clear after, add all the other remaining components and carry out melting, tap after temperature being raised to 1630-1660 DEG C, add the composite deoxidant that step (2) obtains and carry out final deoxidation, then remove the gred, after temperature reaches 1550 DEG C, mixing molten steel is poured in the sand mold of well in advance;
(4) foundry goods is through unpacking, heat-treating after sand removal, foundry goods is sent into be full of in the chamber type electric resistance furnace of nitrogen and is heated to 880 DEG C, be incubated 60 minutes, then foundry goods is taken out air cooling, to be cooledly to room temperature, continue to be fed into tempering in chamber type electric resistance furnace, be heated to 580 DEG C of insulations 90 minutes, taking-up air cooling is to room temperature and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011310.4A CN105463332A (en) | 2015-12-30 | 2015-12-30 | Casting steel capable of being used for producing mining truck axle housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011310.4A CN105463332A (en) | 2015-12-30 | 2015-12-30 | Casting steel capable of being used for producing mining truck axle housing |
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| Publication Number | Publication Date |
|---|---|
| CN105463332A true CN105463332A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511011310.4A Pending CN105463332A (en) | 2015-12-30 | 2015-12-30 | Casting steel capable of being used for producing mining truck axle housing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110962049A (en) * | 2019-10-26 | 2020-04-07 | 江苏亿达铸造机械有限公司 | Steel wire cut pill with hardness and toughness and processing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215755A (en) * | 2008-09-15 | 2011-10-12 | 垓技术公司 | Ultrasound 3d imaging system |
| CN103966519A (en) * | 2014-05-28 | 2014-08-06 | 晋城市宏创源耐磨材料有限公司 | CrMnSi wear-resistant cast steel lining plate and manufacturing method thereof |
| CN104775002A (en) * | 2015-03-25 | 2015-07-15 | 芜湖县天海耐火炉料有限公司 | Calcium deoxidier with good purification effect on molten steel and preparation method thereof |
-
2015
- 2015-12-30 CN CN201511011310.4A patent/CN105463332A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215755A (en) * | 2008-09-15 | 2011-10-12 | 垓技术公司 | Ultrasound 3d imaging system |
| CN103966519A (en) * | 2014-05-28 | 2014-08-06 | 晋城市宏创源耐磨材料有限公司 | CrMnSi wear-resistant cast steel lining plate and manufacturing method thereof |
| CN104775002A (en) * | 2015-03-25 | 2015-07-15 | 芜湖县天海耐火炉料有限公司 | Calcium deoxidier with good purification effect on molten steel and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110962049A (en) * | 2019-10-26 | 2020-04-07 | 江苏亿达铸造机械有限公司 | Steel wire cut pill with hardness and toughness and processing method thereof |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160406 |