CN105506458A - Titanium carbide reinforced cast steel capable of being used for producing axle housing of axle - Google Patents
Titanium carbide reinforced cast steel capable of being used for producing axle housing of axle Download PDFInfo
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- CN105506458A CN105506458A CN201511011297.2A CN201511011297A CN105506458A CN 105506458 A CN105506458 A CN 105506458A CN 201511011297 A CN201511011297 A CN 201511011297A CN 105506458 A CN105506458 A CN 105506458A
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- Prior art keywords
- titanium carbide
- cast steel
- axle
- steel
- heated
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- 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
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- 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
- 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
- C21D1/78—Combined heat-treatments not provided for above
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- 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 titanium carbide reinforced cast steel capable of being used for producing an axle housing of an axle. The titanium carbide reinforced cast steel is prepared from the following raw materials in parts by weight: 95-98 parts of steel scrap (iron content being not lower than 98%), 2-3 parts of Z18 pig iron, 0.8-0.9 part of titanium carbide particles, 0.4-0.45 part of crystal silicon, 0.02-0.03 part of copper, 0.04-0.05 part of magnesium, 1.2-1.3 parts of manganese, 0.8-0.86 part of calcium carbide, 0.23-0.25 part of polyvinylpyrrolidone, 0.6-0.65 part of anthracite, 0.4-0.43 part of nickel laterite ore, 0.2-0.22 part of silica sand and less than or equal to 0.01 part of impurity. According to the titanium carbide reinforced cast steel, the titanium carbide is added into matrix through a special process, and is uniformly distributed into a cast steel material through a series of treatment processes, so that the material strength is improved, and the wear resistance and the heat resistance of the material are also strengthened. The titanium carbide reinforced cast steel is free of deformation and fracture, is low in cost, and can be used for producing the axle housing of the axle.
Description
Technical field
The present invention relates to cast material technical field, particularly relate to a kind of titanium carbide that can be used for producing axle shell and strengthen cast steel.
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 titanium carbide that can be used for producing axle shell to strengthen cast steel.
The present invention is achieved by the following technical solutions:
The titanium carbide that can be used for producing axle shell strengthens a cast steel, is made up: steel scrap (iron level is not less than 98%) 95-98, Z18 pig iron 2-3, titanium carbide granule 0.8-0.9, silicon metal 0.4-0.45, copper 0.02-0.03, magnesium 0.04-0.05, manganese 1.2-1.3, calcium silicide 0.8-0.86, polyvinylpyrrolidone 0.23-0.25, hard coal 0.6-0.65, red soil nickel ore 0.4-0.43, silica sand 0.2-0.22, impurity≤0.01 of the raw material of following weight part.
Described a kind of titanium carbide that can be used for producing axle shell strengthens cast steel, 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, silicon metal being carried out being broken into small-particle by titanium carbide respectively mix with titanium carbide granule, then put 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) red soil nickel ore is put into crusher and be broken into fritter, mix with silica sand with calcium silicide, put into ball mill for dry grinding 40 minutes, mix with hard coal after crossing 200 mesh sieves, form mixed powder; Polyvinylpyrrolidone is added in the water of 3 times amount, after being heated to while stirring to dissolve completely and mixed powder jointly send in high speed mixer, send into extruding pelletization in tablets press after stirring 15 minutes with the speed of 1000 revs/min; Particle is sent into 10 DEG C/min of ramp to 480 DEG C in sintering oven, sinter 2 hours, 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.
Titanium carbide adds in matrix by special process by the present invention, and by a series for the treatment of process, titanium carbide is evenly distributed in cast steel material, not only increases the intensity of material, also enhances wear-resisting, the resistance toheat of material simultaneously; The preparation technology of material of the present invention is simple, is convenient to realize industrialization, and without distortion, without fracture, cost is low simultaneously, can be used for producing axle shell.
Embodiment
The titanium carbide that can be used for producing axle shell strengthens a cast steel, is made up: steel scrap (iron level is not less than 98%) 95, the Z18 pig iron 2, titanium carbide granule 0.8, silicon metal 0.4, copper 0.02, magnesium 0.04, manganese 1.2, calcium silicide 0.8, polyvinylpyrrolidone 0.23, hard coal 0.6, red soil nickel ore 0.4, silica sand 0.2, impurity≤0.01 of the raw material of following weight part (kilogram).
Described a kind of titanium carbide that can be used for producing axle shell strengthens cast steel, 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, silicon metal being carried out being broken into small-particle by titanium carbide respectively mix with titanium carbide granule, then put 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) red soil nickel ore is put into crusher and be broken into fritter, mix with silica sand with calcium silicide, put into ball mill for dry grinding 40 minutes, mix with hard coal after crossing 200 mesh sieves, form mixed powder; Polyvinylpyrrolidone is added in the water of 3 times amount, after being heated to while stirring to dissolve completely and mixed powder jointly send in high speed mixer, send into extruding pelletization in tablets press after stirring 15 minutes with the speed of 1000 revs/min; Particle is sent into 10 DEG C/min of ramp to 480 DEG C in sintering oven, sinter 2 hours, 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 titanium carbide that can be used for producing axle shell strengthens cast steel, 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, titanium carbide granule 0.8-0.9, silicon metal 0.4-0.45, copper 0.02-0.03, magnesium 0.04-0.05, manganese 1.2-1.3, calcium silicide 0.8-0.86, polyvinylpyrrolidone 0.23-0.25, hard coal 0.6-0.65, red soil nickel ore 0.4-0.43, silica sand 0.2-0.22, impurity≤0.01.
2. a kind of titanium carbide that can be used for producing axle shell strengthens cast steel according to claim 1, it is characterized in that, 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, silicon metal being carried out being broken into small-particle by titanium carbide respectively mix with titanium carbide granule, then put 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) red soil nickel ore is put into crusher and be broken into fritter, mix with silica sand with calcium silicide, put into ball mill for dry grinding 40 minutes, mix with hard coal after crossing 200 mesh sieves, form mixed powder; Polyvinylpyrrolidone is added in the water of 3 times amount, after being heated to while stirring to dissolve completely and mixed powder jointly send in high speed mixer, send into extruding pelletization in tablets press after stirring 15 minutes with the speed of 1000 revs/min; Particle is sent into 10 DEG C/min of ramp to 480 DEG C in sintering oven, sinter 2 hours, 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 |
|---|---|---|---|
| CN201511011297.2A CN105506458A (en) | 2015-12-30 | 2015-12-30 | Titanium carbide reinforced cast steel capable of being used for producing axle housing of axle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011297.2A CN105506458A (en) | 2015-12-30 | 2015-12-30 | Titanium carbide reinforced cast steel capable of being used for producing axle housing of axle |
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| CN105506458A true CN105506458A (en) | 2016-04-20 |
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| CN201511011297.2A Pending CN105506458A (en) | 2015-12-30 | 2015-12-30 | Titanium carbide reinforced cast steel capable of being used for producing axle housing of axle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212755A (en) * | 2011-04-29 | 2011-10-12 | 山东蒙凌工程机械股份有限公司 | Low-alloy cast steel and application thereof in heavy lorry axle housing, raw materials and machining process |
| CN102383066A (en) * | 2011-11-14 | 2012-03-21 | 山东省汇丰机械集团总公司章丘市铸造厂 | Abrasion resistant cast steel and preparation method thereof |
| CN104032227A (en) * | 2014-06-04 | 2014-09-10 | 龙岩盛丰机械制造有限公司 | A low-carbon alloy cast steel axle housing and a manufacturing method thereof |
| CN104774999A (en) * | 2015-03-25 | 2015-07-15 | 芜湖华炀炉料科技有限公司 | Calcium deoxidizer with calcium silicide as main component and preparation method thereof |
-
2015
- 2015-12-30 CN CN201511011297.2A patent/CN105506458A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212755A (en) * | 2011-04-29 | 2011-10-12 | 山东蒙凌工程机械股份有限公司 | Low-alloy cast steel and application thereof in heavy lorry axle housing, raw materials and machining process |
| CN102383066A (en) * | 2011-11-14 | 2012-03-21 | 山东省汇丰机械集团总公司章丘市铸造厂 | Abrasion resistant cast steel and preparation method thereof |
| CN104032227A (en) * | 2014-06-04 | 2014-09-10 | 龙岩盛丰机械制造有限公司 | A low-carbon alloy cast steel axle housing and a manufacturing method thereof |
| CN104774999A (en) * | 2015-03-25 | 2015-07-15 | 芜湖华炀炉料科技有限公司 | Calcium deoxidizer with calcium silicide as main component and preparation method thereof |
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Application publication date: 20160420 |
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