CN104060183A - Swing arm bracket and production method thereof - Google Patents
Swing arm bracket and production method thereof Download PDFInfo
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- CN104060183A CN104060183A CN201410234858.4A CN201410234858A CN104060183A CN 104060183 A CN104060183 A CN 104060183A CN 201410234858 A CN201410234858 A CN 201410234858A CN 104060183 A CN104060183 A CN 104060183A
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Abstract
The invention discloses a swing arm bracket and a production method thereof. The swing arm bracket is composed of the following components in percentage by mass: 2.2-2.4% of C, 1.6-1.8% of Si, 0.2-0.4% of Mn, 1.4-1.6% of Al, 1.6-1.8% of Cr, 0.2-0.4% of Cu, 1.2-1.4% of Ba, 1.4-1.6% of V, less than or equal to 0.08% of P, less than or equal to 0.08% of S and the balance of Fe. By reasonably changing the proportion of the components of the swing arm bracket and by providing a reasonable production method, a finished product is relatively high in toughness, wearing resistance and high in strength, the overall weight is reduced, and the cost is lowered.
Description
Technical field
The present invention relates to automobile swing arm support technology field, be specifically related to a kind of oscillating arm bracket and production method thereof.
Background technology
Swing arm for vehicle is the vitals of automobile suspension system, automotive suspension is analyzed from structure, again a kind of complex-shaped strange shape, product technology content is high, manufacturing technology difficulty large, under 1,000,000 large load impactings, safe reliability reaches and absolutely requires in situation, physical strength, flexural deformation, antidetonation, wear-resisting automobile component.That existing oscillating arm bracket also exists is powerful, toughness is inadequate, the deficiency such as wear resistance deficiency, production method are unreasonable.
Summary of the invention
For the problems referred to above, the invention provides a kind of oscillating arm bracket and production method thereof, there is good toughness, wear resistance, intensity advantages of higher.
In order to address the above problem, technical scheme provided by the invention is:
A kind of oscillating arm bracket, formed by following composition and mass percent thereof: C:2.2%-2.4%, Si:1.6%-1.8%, Mn:0.2%-0.4%, AL:1.4%-1.6%, Cr:1.6%-1.8%, Cu:0.2%-0.4%, Ba:1.2%-1.4%, V:1.4%-1.6%, P≤0.08%, S≤0.08%, surplus is Fe.
Preferably, formed by following composition and mass percent thereof: C:2.24%-2.4%, Si:1.65%-1.8%, Mn:0.26%-0.4%, AL:1.44%-1.6%, Cr:1.6%-1.7%, Cu:0.28%-0.4%, Ba:1.2%-1.4%, V:1.45%-1.6%, P≤0.08%, S≤0.08%, surplus is Fe.
Preferably, formed by following composition and mass percent thereof: C:2.28%, Si:1.76%, Mn:0.32%, AL:1.46%, Cr:1.64%, Cu:0.34%, Ba:1.26%, V:1.54%, P:0.08%, S:0.07%, surplus is Fe.
The production method of described oscillating arm bracket, comprises the following steps:
(1) prepare sand mold;
(2) proportioning raw material, melting in electric furnace, temperature is 1560-1590 DEG C;
(3) add silicon titanate innoculant to carry out inoculation;
(4) cast;
(5) cooling;
(6) 900-950 DEG C of heating 3.4-3.8 hours, then 330-360 DEG C of heating 1.6-2 hours;
(7) be cooled to room temperature;
(8) Shot Blasting;
(9) surperficial deburring, grinding process.
Preferably, described sand mold is made up of casting model powder, furane resin and solidifying agent.
Preferably, described sand mold is smeared the mixed solution of Graphite Powder 99 and alcohol on its surface after making, and the mass percent of described Graphite Powder 99 is: 40-48%, and the sintering of then lighting a fire.Igniting sintering is Paint Gloss by sand mold surface, refinement, improves surface smoothness.After sand mold uses, after vibration regenerating device, the fragmentation of vibration boiling cooler, processing, reuse, reduced waste, provide cost savings.
Preferably, after igniting sintering with sand mold described in gas purging.
Preferably, breed at twice, while once breeding for melting, add granularity 1-2.5mm, 54% described silicon titanate innoculant; Late inoculation adds granularity 0.2-0.4mm with stream, 46% described silicon titanate innoculant while being cast.Nucleating agent can reduce chilling tendency, crystal grain thinning, improves graphite form except obtaining higher and mechanical property, also has the stronger anti-ageing ability of moving back.
Preferably, the temperature of described cast is 1440-1480 DEG C.
Cu: can improve hardening capacity, thinning microstructure.
Mn: be sweetening agent, reductor, can improve the flowing property of electrosmelting, can improve the wear resisting property of foundry goods.
V: energy crystal grain thinning, improves matrix strength and impelling strength.
Cr: can strengthen matrix, improve wear resistance, erosion resistance, do not reduce impact toughness in improving hardness and intensity.
Ba: be strong reductor, can capture the oxygen in other metal oxide, generate more firm compound and swim in iron liquid surface, not only purifying molten iron but also protect iron liquid to avoid oxidation.
The effect of silicon titanate innoculant: one, crystal grain thinning, reduces segregation, uniform formation; Two, promote greying, reduce chilling tendency; Three, improve form and the distribution of matrix, graphite, improve mechanical property; Four, improve mechanical strength, adjust hardness; Five, reduce foundry goods internal stress and sectional sensitivity.
Nucleating agent to breed the reaction times very fast, within approximately 80 seconds, just can reach the state of breeding, then decline gradually, within approximately 14-16 minutes, decline is to original state.So the time of cast should be controlled and be no more than 10 minutes.
After nucleating agent fragmentation, form certain particle size particle, surface-area increases, and under high temperature, oxidation rate is accelerated.Therefore, should in the time that iron liquid overflows at the bottom of casting ladle, start to add, last till that iron liquid rises to casting ladle approximately 3/4ths places and finishes, avoid nucleating agent to be oxidized in casting ladle and reduce pregnant effect.
Compared with prior art, beneficial effect of the present invention is:
The present invention, by reasonably changing each composition proportion of oscillating arm bracket, provides rational production method, and the finished product of production has higher toughness, wear resistance, and intensity is high, can reduce overall weight, provides cost savings.
Embodiment
The present invention will be further described below:
Embodiment 1:
A kind of oscillating arm bracket, formed by following composition and mass percent thereof: C:2.28%, Si:1.76%, Mn:0.32%, AL:1.46%, Cr:1.64%, Cu:0.34%, Ba:1.26%, V:1.54%, P:0.08%, S:0.07%, surplus is Fe.
The production method of oscillating arm bracket, comprises the following steps:
(1) prepare sand mold, sand mold is made up of casting model powder, furane resin and solidifying agent, sand mold is smeared the mixed solution of Graphite Powder 99 and alcohol on its surface after making, then the sintering of lighting a fire, after igniting sintering, use gas purging sand mold, Graphite Powder 99 igniting sintering is Paint Gloss by sand mold surface, refinement, improves surface smoothness.After sand mold uses, after vibration regenerating device, the fragmentation of vibration boiling cooler, processing, reuse, reduced waste, provide cost savings;
(2) proportioning raw material, melting in electric furnace, temperature is 1575 DEG C;
(3) add silicon titanate innoculant to carry out inoculation, breed at twice, while once breeding for melting, add granularity 1-2.5mm, 54% silicon titanate innoculant; Late inoculation adds granularity 0.2-0.4mm with stream, 46% silicon titanate innoculant while being cast.Nucleating agent can reduce chilling tendency, crystal grain thinning, improves graphite form except obtaining higher and mechanical property, also has the stronger anti-ageing ability of moving back;
(4) cast, the temperature of cast is 1460 DEG C;
(5) cooling;
(6) 920 DEG C of heating 3.6 hours, then 340 DEG C of heating 1.8 hours;
(7) be cooled to room temperature;
(8) Shot Blasting;
(9) surperficial deburring, grinding process.
Cu: can improve hardening capacity, thinning microstructure.
Mn: be sweetening agent, reductor, can improve the flowing property of electrosmelting, can improve the wear resisting property of foundry goods.
V: energy crystal grain thinning, improves matrix strength and impelling strength.
Cr: can strengthen matrix, improve wear resistance, erosion resistance, do not reduce impact toughness in improving hardness and intensity.
Ba: be strong reductor, can capture the oxygen in other metal oxide, generate more firm compound and swim in iron liquid surface, not only purifying molten iron but also protect iron liquid to avoid oxidation.
The effect of silicon titanate innoculant: one, crystal grain thinning, reduces segregation, uniform formation; Two, promote greying, reduce chilling tendency; Three, improve form and the distribution of matrix, graphite, improve mechanical property; Four, improve mechanical strength, adjust hardness; Five, reduce foundry goods internal stress and sectional sensitivity.
Nucleating agent to breed the reaction times very fast, within approximately 80 seconds, just can reach the state of breeding, then decline gradually, within approximately 14-16 minutes, decline is to original state.So the time of cast should be controlled and be no more than 10 minutes.
After nucleating agent fragmentation, form certain particle size particle, surface-area increases, and under high temperature, oxidation rate is accelerated.Therefore, should in the time that iron liquid overflows at the bottom of casting ladle, start to add, last till that iron liquid rises to casting ladle approximately 3/4ths places and finishes, avoid nucleating agent to be oxidized in casting ladle and reduce pregnant effect.
Embodiment 2:
A kind of oscillating arm bracket, is made up of following composition and mass percent thereof: C:2.2%, Si:1.6%, Mn:0.2%, AL:1.4%, Cr:1.6%, Cu:0.2%, Ba:1.2%, V:1.4%, P:0.08%, S:0.08%, surplus is Fe.
The production method of oscillating arm bracket, comprises the following steps:
(1) prepare sand mold, sand mold is made up of casting model powder, furane resin and solidifying agent, sand mold is smeared the mixed solution of Graphite Powder 99 and alcohol on its surface after making, then the sintering of lighting a fire, after igniting sintering, use gas purging sand mold, Graphite Powder 99 igniting sintering is Paint Gloss by sand mold surface, refinement, improves surface smoothness.After sand mold uses, after vibration regenerating device, the fragmentation of vibration boiling cooler, processing, reuse, reduced waste, provide cost savings;
(2) proportioning raw material, melting in electric furnace, temperature is 1590 DEG C;
(3) add silicon titanate innoculant to carry out inoculation, breed at twice, while once breeding for melting, add granularity 1-2.5mm, 54% silicon titanate innoculant; Late inoculation adds granularity 0.2-0.4mm with stream, 46% silicon titanate innoculant while being cast.Nucleating agent can reduce chilling tendency, crystal grain thinning, improves graphite form except obtaining higher and mechanical property, also has the stronger anti-ageing ability of moving back;
(4) cast, the temperature of cast is 1440 DEG C;
(5) cooling;
(6) 950 DEG C of heating 3.4 hours, then 360 DEG C of heating 1.6 hours;
(7) be cooled to room temperature;
(8) Shot Blasting;
(9) surperficial deburring, grinding process.
Embodiment 3:
A kind of oscillating arm bracket, formed by following composition and mass percent thereof: C:2.4%, Si:1.8%, Mn:0.4%, AL:1.4%, Cr:11.8%, Cu:0.2%, Ba:1.4%, V:1.4%, P:0.06%, S:0.07%, surplus is Fe.
The production method of oscillating arm bracket, comprises the following steps:
(1) prepare sand mold, sand mold is made up of casting model powder, furane resin and solidifying agent, sand mold is smeared the mixed solution of Graphite Powder 99 and alcohol on its surface after making, then the sintering of lighting a fire, after igniting sintering, use gas purging sand mold, Graphite Powder 99 igniting sintering is Paint Gloss by sand mold surface, refinement, improves surface smoothness.After sand mold uses, after vibration regenerating device, the fragmentation of vibration boiling cooler, processing, reuse, reduced waste, provide cost savings;
(2) proportioning raw material, melting in electric furnace, temperature is 1560 DEG C;
(3) add silicon titanate innoculant to carry out inoculation, breed at twice, while once breeding for melting, add granularity 1-2.5mm, 54% silicon titanate innoculant; Late inoculation adds granularity 0.2-0.4mm with stream, 46% silicon titanate innoculant while being cast.Nucleating agent can reduce chilling tendency, crystal grain thinning, improves graphite form except obtaining higher and mechanical property, also has the stronger anti-ageing ability of moving back;
(4) cast, the temperature of cast is 1480 DEG C;
(5) cooling;
(6) 900 DEG C of heating 3.8 hours, then 330 DEG C of heating 2 hours;
(7) be cooled to room temperature;
(8) Shot Blasting;
(9) surperficial deburring, grinding process.
Embodiment 4:
A kind of oscillating arm bracket, formed by following composition and mass percent thereof: C:2.2%, Si:1.6%-, Mn:0.2%, AL:1.6%, Cr:1.8%, Cu:0.4%, Ba:1.2%, V:1.6%, P:0.08%, S:0.06%, surplus is Fe.
The production method of oscillating arm bracket, comprises the following steps:
(1) prepare sand mold, sand mold is made up of casting model powder, furane resin and solidifying agent, sand mold is smeared the mixed solution of Graphite Powder 99 and alcohol on its surface after making, then the sintering of lighting a fire, after igniting sintering, use gas purging sand mold, Graphite Powder 99 igniting sintering is Paint Gloss by sand mold surface, refinement, improves surface smoothness.After sand mold uses, after vibration regenerating device, the fragmentation of vibration boiling cooler, processing, reuse, reduced waste, provide cost savings;
(2) proportioning raw material, melting in electric furnace, temperature is 1580 DEG C;
(3) add silicon titanate innoculant to carry out inoculation, breed at twice, while once breeding for melting, add granularity 1-2.5mm, 54% silicon titanate innoculant; Late inoculation adds granularity 0.2-0.4mm with stream, 46% silicon titanate innoculant while being cast.Nucleating agent can reduce chilling tendency, crystal grain thinning, improves graphite form except obtaining higher and mechanical property, also has the stronger anti-ageing ability of moving back;
(4) cast, the temperature of cast is 1470 DEG C;
(5) cooling;
(6) 910 DEG C of heating 3.7 hours, then 340 DEG C of heating 1.9 hours;
(7) be cooled to room temperature;
(8) Shot Blasting;
(9) surperficial deburring, grinding process.
Embodiment 5:
A kind of oscillating arm bracket, is made up of following composition and mass percent thereof: C:2.2%, Si:1.7%, Mn:0.2%, AL:1.4%, Cr:1.6%, Cu:0.4%, Ba:1.4%, V:1.6%, P:0.06%, S:0.08%, surplus is Fe.
The production method of oscillating arm bracket, comprises the following steps:
(1) prepare sand mold, sand mold is made up of casting model powder, furane resin and solidifying agent, sand mold is smeared the mixed solution of Graphite Powder 99 and alcohol on its surface after making, then the sintering of lighting a fire, after igniting sintering, use gas purging sand mold, Graphite Powder 99 igniting sintering is Paint Gloss by sand mold surface, refinement, improves surface smoothness.After sand mold uses, after vibration regenerating device, the fragmentation of vibration boiling cooler, processing, reuse, reduced waste, provide cost savings;
(2) proportioning raw material, melting in electric furnace, temperature is 1585 DEG C;
(3) add silicon titanate innoculant to carry out inoculation, breed at twice, while once breeding for melting, add granularity 1-2.5mm, 54% silicon titanate innoculant; Late inoculation adds granularity 0.2-0.4mm with stream, 46% silicon titanate innoculant while being cast.Nucleating agent can reduce chilling tendency, crystal grain thinning, improves graphite form except obtaining higher and mechanical property, also has the stronger anti-ageing ability of moving back;
(4) cast, the temperature of cast is 1450 DEG C;
(5) cooling;
(6) 940 DEG C of heating 3.6 hours, then 350 DEG C of heating 1.7 hours;
(7) be cooled to room temperature;
(8) Shot Blasting;
(9) surperficial deburring, grinding process.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. an oscillating arm bracket, it is characterized in that: formed by following composition and mass percent thereof: C:2.2%-2.4%, Si:1.6%-1.8%, Mn:0.2%-0.4%, AL:1.4%-1.6%, Cr:1.6%-1.8%, Cu:0.2%-0.4%, Ba:1.2%-1.4%, V:1.4%-1.6%, P≤0.08%, S≤0.08%, surplus is Fe.
2. oscillating arm bracket according to claim 1, it is characterized in that: formed by following composition and mass percent thereof: C:2.24%-2.4%, Si:1.65%-1.8%, Mn:0.26%-0.4%, AL:1.44%-1.6%, Cr:1.6%-1.7%, Cu:0.28%-0.4%, Ba:1.2%-1.4%, V:1.45%-1.6%, P≤0.08%, S≤0.08%, surplus is Fe.
3. oscillating arm bracket according to claim 1 and 2, it is characterized in that: formed by following composition and mass percent thereof: C:2.28%, Si:1.76%, Mn:0.32%, AL:1.46%, Cr:1.64%, Cu:0.34%, Ba:1.26%, V:1.54%, P:0.08%, S:0.07%, surplus is Fe.
4. the production method of oscillating arm bracket according to claim 1 and 2, is characterized in that, comprises the following steps:
(1) prepare sand mold;
(2) proportioning raw material, melting in electric furnace, temperature is 1560-1590 DEG C;
(3) add silicon titanate innoculant to carry out inoculation;
(4) cast;
(5) cooling;
(6) 900-950 DEG C of heating 3.4-3.8 hours, then 330-360 DEG C of heating 1.6-2 hours;
(7) be cooled to room temperature;
(8) Shot Blasting;
(9) surperficial deburring, grinding process.
5. the production method of oscillating arm bracket according to claim 4, is characterized in that: described sand mold is made up of casting model powder, furane resin and solidifying agent.
6. the production method of oscillating arm bracket according to claim 5, is characterized in that: after stating sand mold and making, smear the mixed solution of Graphite Powder 99 and alcohol on its surface, the mass percent of described Graphite Powder 99 is: 40-48%, and the sintering of then lighting a fire.
7. the production method of oscillating arm bracket according to claim 6, is characterized in that: sand mold described in use gas purging after igniting sintering.
8. the production method of oscillating arm bracket according to claim 4, is characterized in that: breed at twice, add granularity 1-2.5mm while once breeding for melting, 54% described silicon titanate innoculant; Late inoculation adds granularity 0.2-0.4mm with stream, 46% described silicon titanate innoculant while being cast.
9. the production method of oscillating arm bracket according to claim 4, is characterized in that: the temperature of described cast is 1440-1480 DEG C.
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| CN201410234858.4A CN104060183B (en) | 2014-05-29 | 2014-05-29 | A kind of oscillating arm bracket and production method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970084A (en) * | 2016-06-02 | 2016-09-28 | 安徽威龙电力器材有限公司 | Tension clamp and preparation method thereof |
| CN108149115A (en) * | 2016-12-05 | 2018-06-12 | 宜兴市零零七机械科技有限公司 | A kind of swing arm material of electronic product |
| CN108149078A (en) * | 2016-12-05 | 2018-06-12 | 宜兴市零零七机械科技有限公司 | A kind of swing arm material of improved electronic product |
| CN109930098A (en) * | 2017-12-19 | 2019-06-25 | 宜兴安纳西智能机械设备有限公司 | A kind of feed device swing arm material |
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| US6209881B1 (en) * | 1997-05-17 | 2001-04-03 | Federal-Mogul Burscheid Gmbh | Cast-iron piston ring |
| CN101092674A (en) * | 2007-07-20 | 2007-12-26 | 山东滨州渤海活塞股份有限公司 | Nitrogen contained austenitic cast iron in use for beset ring of piston |
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| GB1218035A (en) * | 1967-01-13 | 1971-01-06 | Trafik Ab | Improvements in or relating to cast iron of good castability and very good resistance to deterioration in connection with heat transfer or thermal cycling |
| JPS6126754A (en) * | 1984-07-13 | 1986-02-06 | Kubota Ltd | Double-layered cylinder liner having superior wear resistance |
| CN1176315A (en) * | 1996-07-25 | 1998-03-18 | Ae格策有限公司 | Iron casting alloy for producing piston ring of internal-combustion engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970084A (en) * | 2016-06-02 | 2016-09-28 | 安徽威龙电力器材有限公司 | Tension clamp and preparation method thereof |
| CN108149115A (en) * | 2016-12-05 | 2018-06-12 | 宜兴市零零七机械科技有限公司 | A kind of swing arm material of electronic product |
| CN108149078A (en) * | 2016-12-05 | 2018-06-12 | 宜兴市零零七机械科技有限公司 | A kind of swing arm material of improved electronic product |
| CN109930098A (en) * | 2017-12-19 | 2019-06-25 | 宜兴安纳西智能机械设备有限公司 | A kind of feed device swing arm material |
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|---|---|
| CN104060183B (en) | 2016-06-01 |
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