CN107335974A - Lift the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of wheel - Google Patents

Lift the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of wheel Download PDF

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Publication number
CN107335974A
CN107335974A CN201710538993.1A CN201710538993A CN107335974A CN 107335974 A CN107335974 A CN 107335974A CN 201710538993 A CN201710538993 A CN 201710538993A CN 107335974 A CN107335974 A CN 107335974A
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parts
powder
water
solution
wheel hub
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CN201710538993.1A
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Chinese (zh)
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年君
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安徽珩业车轮有限公司
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Priority to CN201710538993.1A priority Critical patent/CN107335974A/en
Publication of CN107335974A publication Critical patent/CN107335974A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/50Other automobile vehicle parts, i.e. manufactured in assembly lines

Abstract

The hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of wheel is lifted, the technique main flow is that the preforming Homogenization Treatments heating spinning the pre-heat treatment shot-peening spinning heat treatment compressed air shotblasting machine of melt-casting adds application.Hot spinning plastic deformation can make fine rarefaction defect up, so as to improve the mechanical property of wheel hub, the bulk strength and corrosion resistance of wheel greatly improved in casting rotation new technology, and machine-finish allowance is greatly decreased, wheel service life and security significantly improve, be advantageous to vehicle loss of weight fuel-economizing, wheel production cost declines.

Description

Lift the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of wheel
Technical field:
The present invention relates to common aluminum alloy wheel hub, and in particular to lifts the aluminium alloy wheel hub heat rotation of the overall abrasion resistance of wheel Technique.
Background technology:
With the fast development of automobile industry, continuous surging, safety and environmental regulation that Oil-saving for Modern Motor Vehicles consumption reduction requires Increasingly strict, the requirement of automotive light weight technology is more urgent.It is its attractive in appearance, air, changeable due to widely using for aluminum-alloy wheel Configuration design also adds much beauty to for automobile.At present, on China Auto Market, car aluminum-alloy wheel utilization rate has at least reached sedan-chair More than 70 parts of the car total market size.And counted according to the parties concerned, this ratio in 2003 is 50 parts or so.Aluminium alloy quality is light, Intensity is high, formability is good, moderate, the rate of recovery is high, to reducing automotive dead weight, reducing oil consumption, mitigation environmental pollution with improving Operating characteristics etc. has great significance, it has also become the preferred material of auto industry.Light-alloy wheel hub is in automotive light weight technology process More and more important role, particularly aluminium alloy wheel hub are played with its attractive in appearance, light, energy-conservation, rapid heat dissipation, corrosion-resistant, processing Property it is good the features such as, just progressively substitute steel wheel hub and turn into optimal selection.The manufacturing process of aluminium alloy wheel hub mainly has casting at present Method, forging method and spinning process etc. are made, the research to the various forming technologies of aluminium alloy wheel hub and applicable cases are summarized herein, from The angle for the problems such as considering wheel hub quality and manufacturing cost is copied, has inquired into various aluminum alloy wheel forming technologies emphatically;
Forging is aluminium wheels application one of forming technology earlier.Forging aluminium wheels have that intensity is high, corrosion stability is good, size Accurately, the advantages that processing capacity is small, its weight of ordinary circumstance just correspond to the 1/2 or lower of same size steel wheel.Forge aluminium wheels Grain flow is consistent with the direction of stress, and its intensity, toughness and fatigue strength are significantly better than Casting Automobile Wheel.Meanwhile performance With repeatability well, almost each wheel hub has same mechanical property.The typical elongation for forging aluminium wheels is 12 - 17 parts of part, thus vibrations and the stress of road can be absorbed well.Usual casting hub, which has, great bears compression stress Ability, but withstand shocks, shear with the ability of tensile load then can not show a candle to forge aluminium wheels.Forged hub has higher strong Spend weight ratio.In addition, forged aluminium hub surface pore-free, thus there are good surface treatment capabilities, it not only can guarantee that coating Uniformity, with reference to firm, and color might as well.The disadvantage for forging aluminium wheels is that production process is more, and production cost is than casting That makes is much higher.
The content of the invention:
The technical problems to be solved by the invention are to overcome prior art offer wear-resisting suitable for the entirety of lifting wheel The hot lathe turner's skill of aluminium alloy wheel hub of degree.
The technical problems to be solved by the invention are realized using following technical scheme.
Lift the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of wheel, it is characterised in that:The technique main flow is, Preforming-Homogenization Treatments-heating spinning-the pre-heat treatment-shot-peening-spinning-heat treatment-shot-peening-the machine of fusing-casting adds-application; Specially:
Fusing:Prepare aluminium alloy as requested, melted using electric smelter;
Cast preforming:Liquid metal is set to fill die cavity under high pressure effect with high speed using compression casting, and Solidify under pressure and obtain casting;
Homogenization Treatments:Each finished wheel hub will be on flash trimmer after polishing, then is carried out by worker Meticulous sanding and polishing, by the smooth of the casting surface sanding and polishing of workpiece;
Heat spinning:High temperature, by workpiece heat, inlet wire spinning, before spinning, workpiece is heated, in heating process, every 3 minutes, one layer of forced fluid is sprayed to workpiece surface;
Described forced fluid is prepared by following components:Sylvite 1-10 parts, cobalt-based self-fluxing alloyed powder 20-90 Part, curing agent 1-30 parts, 98%-90% concentrated sulfuric acid 10-30 parts, 95% ethanol 130-150 parts, thinner 5-25 parts, tackifier 5-25 parts, nonmetallic ceramics powder 2-3 parts, coupling agent solution 15-18 parts;
The preparation method of forced fluid includes:95% second alcohol and water is 1 by volume:4-1:8 are made into alcohol solution and add Thinner, the coupling agent solution prepared is placed in 200W-300W ultrasonic waves, stirs lower heating hydrolysis 30min-1.5h and be made 80 DEG C -90 DEG C of transparent acidifying hydrating solutions;
By three kinds of curing agent, cobalt-based self-fluxing alloyed powder and the 98%-90% concentrated sulfuric acids isothermal raw materials through high-pressure pump simultaneously It is pumped into impact flow reactor, then secondary mixing is carried out by the agitating device of reactor exit, filtering, it is white obtains primary particle size The mixed liquor of carbon black, control ph 3-6,80 DEG C -90 DEG C of temperature;
80 DEG C -90 DEG C transparent acidifying hydrating solutions, which are simultaneously added in sylvite, to be stirred 0.5-1h and forms the first salt-mixture, then by one The mixed liquor of secondary particle diameter white carbon, which is added in the first salt-mixture, stirs 0.5-1h, stands 1-2h, adds nonmetallic ceramics powder and increasing Stick agitation and filtration produces forced fluid;
The pre-heat treatment:By semi-finished product house in solid solution furnace, in temperature under the conditions of 525 DEG C -535 DEG C, the duration 6.5 The solution treatment of hour;Come out in 20s from solid solution furnace, quenched in 70 DEG C of mixed solution;It is 155 DEG C -170 DEG C in temperature, The artificial aging of 5 hours duration;
The mixed solution is prepared by following components:Hydrochloric acid 15-25 parts, molding bonded agent 30-35 parts, paraffin 15 - 20 parts of parts of part, tungsten powder 15-25 parts, polythioether rubber 20-25 parts, ammonium bisulfite 25-30 parts, talcum powder 10-20 parts, oxygen Change Tissuemat E 14-18 parts, surfactant 12-17 parts, water 2000-2060 parts, cladding 10-12 parts, rutile type titanium white 3-6 parts, urea 1-3 parts, 40% aqueous solution of nitric acid 15-17 parts;
The preparation method of mixed solution includes:
Paraffin is put into pond, adds 30% water and salt acid soak, immersion obtains mixture one in 1-2 days;
Molding bonded agent is mixed with polythioether rubber and 20%, beats 3 hours, obtains mixture two;
By in the language mixture two of mixture one after cladding input stirring, heating, heating-up temperature is 100 DEG C, heats 10-12 Hour;Rutile type titanium white, urea are mixed after the 2-3 hours of heating cladding, puts into and 10- is heated in surfactant 12 hours;Hereafter took glue once every 6 hours, take glue in three times, it is 3 to take glue amount proportion three times:2:1;
The glue taken for the first time is mixed with tungsten powder, the water for adding 5% is beaten, and the glue taken for the second time mixes with ammonium bisulfite Close, the water for adding 10% is beaten, and the glue taken for the third time mixes with talcum powder, and the water for adding 5% is beaten;
Foam caused by beating three times is taken, after foam is settled into liquid, high temperature groove is put into OPE and stands and melt After changing 15min-45min, ultrasonic wave-agitating device is opened, while injects 40% aqueous solution of nitric acid and the dilution of 30% water, 80 DEG C -90 DEG C of post cure 1h-3h, ultrasonic power 100W-300W, mixing speed 60-150rpm, you can;
Shot-peening:Using high-pressure blast or compressed air, the workpiece surface that is blown out impacting of its high speed is reached into cleaning Effect;
Spinning:Under high pressure effect, workpiece melts again, fills die cavity with high speed, and coagulate under pressure Gu;
Heat treatment:By semi-finished product house in solid solution furnace, in temperature under the conditions of 525 DEG C -535 DEG C, the duration 6.5 is small When solution treatment;Come out in 20s from solid solution furnace, quenched in 70 DEG C of the aqueous solution;It is 155 DEG C -170 DEG C in temperature, continues The artificial aging of 5 hours time;
Shot-peening:Using high-pressure blast or compressed air, the workpiece surface that is blown out impacting of its high speed is reached into cleaning Effect;
Machine adds:Due to complex-shaped, point 4 procedures processing, the Vehicle Processing face-another face of brill decoration hole-Vehicle Processing-brill valve inside Hole;After the completion of processing, polishing is polished;
Application:Pre-processed, including 9 procedures, respectively 2 oil removings, 1 rinses, 1 degreasing, and 1 rinses, plating Chromium, 2 deionized water rinsings;After flushing at a temperature of 120 DEG C, dry within 15 minutes;Hand spray is carried out again, sprays bottom powder-water spray Property paint-spray transparent powder, often spraying one layer of coating will be once heating and curing processing, and curing process temperature is 230 DEG C -240 DEG C, Time is 20-24 minutes.
Described forced fluid is prepared by following components:1 part of sylvite, 20 parts of cobalt-based self-fluxing alloyed powder, solidification 1 part of agent, 10 parts of the 98%-90% concentrated sulfuric acids, 95% 130 parts of ethanol, 5 parts of thinner, 5 parts of tackifier, 2 parts of nonmetallic ceramics powder, 15 parts of coupling agent solution.
Described forced fluid is prepared by following components:10 parts of sylvite, 90 parts of cobalt-based self-fluxing alloyed powder, solidification 30 parts of agent, 30 parts of the 98%-90% concentrated sulfuric acids, 95% 150 parts of ethanol, 25 parts of thinner, 25 parts of tackifier, nonmetallic ceramics powder 3 Part, 18 parts of coupling agent solution.
Mixed solution is prepared by following components:15 parts of hydrochloric acid, 30 parts of molding bonded agent, 15 parts of paraffin, tungsten powder 15 parts, 20 parts of polythioether rubber, 25 parts of ammonium bisulfite, 10 parts of talcum powder, 14 parts of OPE, surfactant 12 Part, 2000 parts of water, 10 parts of cladding, 3 parts of rutile type titanium white, 1 part of urea, 40% 15 parts of aqueous solution of nitric acid.
Described mixed solution is prepared by following components:25 parts of hydrochloric acid, 35 parts of molding bonded agent, 20 parts of paraffin Part, 25 parts of tungsten powder, 25 parts of polythioether rubber, 30 parts of ammonium bisulfite, 20 parts of talcum powder, 18 parts of OPE, surface 17 parts of activating agent, 2060 parts of water, 12 parts of cladding, 6 parts of rutile type titanium white, 3 parts of urea, 40% 17 parts of aqueous solution of nitric acid.
Described coupling agent solution is specially:Coupling agent 68-70%, talcum powder 5-12%, agstone 1-5%, golden red Stone-type titanium dioxide 2-3%, remaining is water.
Described coupling agent solution is specially:Coupling agent 68%, talcum powder 5%, agstone 1%, rutile titanium dioxide Powder 2%, water 24%.
Described coupling agent solution is specially:Coupling agent 70%, talcum powder 12%, agstone 5%, rutile titanium dioxide Powder 3%, water 10%.
Described coupling agent solution preparation method includes:Talcum powder and the water of half are added in full of nitrogen reactor, It is warming up to 50~60 DEG C, while stirs to being completely dissolved, and is incubated 1~2h;Added in the container full of carbon dioxide in addition The water of agstone and half, is warming up to 40~50 DEG C, and stirring is to being completely dissolved;Both are mixed again, heats 90-110 DEG C, mistake Filter obtains liquid, and rutile type titanium white is added, continues to heat, is completely dissolved to rutile type titanium white, finally will coupling Stirring is added under agent normal temperature.
Beneficial effect:Shape and performance are obtained rationally using low pressure casting and the wheel hub strand of outward appearance demand can be met, tightly Then hot spinning shaping is further applied to the inner rim portion of this strand;The technique combines closely low pressure casting, mould pressing In same hot procedure, low pressure casting and the respective advantage of mould pressing are not only combined, and 1+1 can be obtained>2 Effect;
It fact proved, hot spinning plastic deformation can make fine rarefaction defect up, so as to improve the mechanical property of wheel hub Can, the bulk strength and corrosion resistance of wheel greatly improved in casting rotation new technology, and machine-finish allowance is greatly decreased, and wheel makes Significantly improved with life-span and security, be advantageous to vehicle loss of weight fuel-economizing, wheel production cost declines, and design analysis sets for spinning Standby manufacture and improvement trend indicates direction, by carrying out Primary Study to simplified aluminium alloy wheel hub hot spinning technique, point Its formability and defect are analysed and have carried out corresponding numerical simulation, method and foundation are provided for process optimization.
Embodiment:
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1:The hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of wheel is lifted, the technique main flow is to melt Preforming-Homogenization Treatments-heating spinning-the pre-heat treatment-shot-peening-spinning-heat treatment-shot-peening-the machine of change-casting adds-application;Tool Body is:
Fusing:Prepare aluminium alloy as requested, melted using electric smelter;
Cast preforming:Liquid metal is set to fill die cavity under high pressure effect with high speed using compression casting, and Solidify under pressure and obtain casting;
Homogenization Treatments:Each finished wheel hub will be on flash trimmer after polishing, then is carried out by worker Meticulous sanding and polishing, by the smooth of the casting surface sanding and polishing of workpiece;
Heat spinning:High temperature, by workpiece heat, inlet wire spinning, before spinning, workpiece is heated, in heating process, every 3 minutes, one layer of forced fluid is sprayed to workpiece surface;
Wherein forced fluid is prepared by following components:1 part of sylvite, 20 parts of cobalt-based self-fluxing alloyed powder, curing agent 1 Part, 10 parts of the 98%-90% concentrated sulfuric acids, 95% 130 parts of ethanol, 5 parts of thinner, 5 parts of tackifier, 2 parts of nonmetallic ceramics powder, coupling 15 parts of agent solution;
The preparation method of forced fluid includes:95% second alcohol and water is 1 by volume:4-1:8 are made into alcohol solution and add Thinner, the coupling agent solution prepared is placed in 200W-300W ultrasonic waves, stirs lower heating hydrolysis 30min-1.5h and be made 80 DEG C -90 DEG C of transparent acidifying hydrating solutions;
By three kinds of curing agent, cobalt-based self-fluxing alloyed powder and the 98%-90% concentrated sulfuric acids isothermal raw materials through high-pressure pump simultaneously It is pumped into impact flow reactor, then secondary mixing is carried out by the agitating device of reactor exit, filtering, it is white obtains primary particle size The mixed liquor of carbon black, control ph 3-6,80 DEG C -90 DEG C of temperature;
80 DEG C -90 DEG C transparent acidifying hydrating solutions, which are simultaneously added in sylvite, to be stirred 0.5-1h and forms the first salt-mixture, then by one The mixed liquor of secondary particle diameter white carbon, which is added in the first salt-mixture, stirs 0.5-1h, stands 1-2h, adds nonmetallic ceramics powder and increasing Stick agitation and filtration produces forced fluid;
The pre-heat treatment:By semi-finished product house in solid solution furnace, in temperature under the conditions of 525 DEG C -535 DEG C, the duration 6.5 The solution treatment of hour;Come out in 20s from solid solution furnace, quenched in 70 DEG C of mixed solution;It is 155 DEG C -170 DEG C in temperature, The artificial aging of 5 hours duration;
Mixed solution is prepared by following components:15 parts of hydrochloric acid, 30 parts of molding bonded agent, 15 parts of paraffin, tungsten powder 15 parts, 20 parts of polythioether rubber, 25 parts of ammonium bisulfite, 10 parts of talcum powder, 14 parts of OPE, surfactant 12 Part, 2000 parts of water, 10 parts of cladding, 3 parts of rutile type titanium white, 1 part of urea, 40% 15 parts of aqueous solution of nitric acid;
The preparation method of mixed solution includes:
Paraffin is put into pond, adds 30% water and salt acid soak, immersion obtains mixture one in 1-2 days;
Molding bonded agent is mixed with polythioether rubber and 20%, beats 3 hours, obtains mixture two;
By in the language mixture two of mixture one after cladding input stirring, heating, heating-up temperature is 100 DEG C, heats 10-12 Hour;Rutile type titanium white, urea are mixed after the 2-3 hours of heating cladding, puts into and 10- is heated in surfactant 12 hours;Hereafter took glue once every 6 hours, take glue in three times, it is 3 to take glue amount proportion three times:2:1;
The glue taken for the first time is mixed with tungsten powder, the water for adding 5% is beaten, and the glue taken for the second time mixes with ammonium bisulfite Close, the water for adding 10% is beaten, and the glue taken for the third time mixes with talcum powder, and the water for adding 5% is beaten;
Foam caused by beating three times is taken, after foam is settled into liquid, high temperature groove is put into OPE and stands and melt After changing 15min-45min, ultrasonic wave-agitating device is opened, while injects 40% aqueous solution of nitric acid and the dilution of 30% water, 80 DEG C -90 DEG C of post cure 1h-3h, ultrasonic power 100W-300W, mixing speed 60-150rpm, you can;
Shot-peening:Using high-pressure blast or compressed air, the workpiece surface that is blown out impacting of its high speed is reached into cleaning Effect;
Spinning:Under high pressure effect, workpiece melts again, fills die cavity with high speed, and coagulate under pressure Gu;
Heat treatment:By semi-finished product house in solid solution furnace, in temperature under the conditions of 525 DEG C -535 DEG C, the duration 6.5 is small When solution treatment;Come out in 20s from solid solution furnace, quenched in 70 DEG C of the aqueous solution;It is 155 DEG C -170 DEG C in temperature, continues The artificial aging of 5 hours time;
Shot-peening:Using high-pressure blast or compressed air, the workpiece surface that is blown out impacting of its high speed is reached into cleaning Effect;
Machine adds:Due to complex-shaped, point 4 procedures processing, the Vehicle Processing face-another face of brill decoration hole-Vehicle Processing-brill valve inside Hole;After the completion of processing, polishing is polished;
Application:Pre-processed, including 9 procedures, respectively 2 oil removings, 1 rinses, 1 degreasing, and 1 rinses, plating Chromium, 2 deionized water rinsings;After flushing at a temperature of 120 DEG C, dry within 15 minutes;Hand spray is carried out again, sprays bottom powder-water spray Property paint-spray transparent powder, often spraying one layer of coating will be once heating and curing processing, and curing process temperature is 230 DEG C -240 DEG C, Time is 20-24 minutes.
Wherein coupling agent solution is specially:Coupling agent 68%, talcum powder 5%, agstone 1%, rutile type titanium white 2%, water 24%.
Wherein coupling agent solution preparation method includes:Talcum powder and the water of half are added in full of nitrogen reactor, is risen Temperature is stirred to being completely dissolved to 50~60 DEG C, and is incubated 1~2h;Stone is added in the container full of carbon dioxide in addition The water of limestone flour and half, is warming up to 40~50 DEG C, and stirring is to being completely dissolved;Both are mixed again, heats 90-110 DEG C, filtering Liquid is obtained, rutile type titanium white is added, continues to heat, is completely dissolved to rutile type titanium white, finally by coupling agent Stirring is added under normal temperature.
By the existing wheel hub preparation technology of Experimental Comparison, the contrast of gained wheel hub:
Weight can mitigate 30 parts -40 parts;When speed is 90-120km/h, the few 0.0138L/10Okm of oil consumption theobromine, hit Hit intensity 12Mpa, pressure 3Mpa;By taking Audi car as an example, 39.5 parts of aluminium wheels weight saving;In 90-120km/h speeds, Oil consumption can reduce 0.05L/10Okm.And when being travelled in city, it can reduce oil consumption 0.04/10Okm, every 100,000 kilometers of fuel-economizings 40- 50L, impact strength 12Mpa, pressure 3Mpa.
The mechanical property of wheel hub is improved, the bulk strength and corrosion resistance of wheel greatly improved in casting rotation new technology, and Machine-finish allowance is greatly decreased, and wheel service life and security significantly improve, and is advantageous to vehicle loss of weight fuel-economizing, wheel production Cost declines.
Embodiment 2:The hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of wheel is lifted, the technique main flow is to melt Preforming-Homogenization Treatments-heating spinning-the pre-heat treatment-shot-peening-spinning-heat treatment-shot-peening-the machine of change-casting adds-application;Tool Body is:
Fusing:Prepare aluminium alloy as requested, melted using electric smelter;
Cast preforming:Liquid metal is set to fill die cavity under high pressure effect with high speed using compression casting, and Solidify under pressure and obtain casting;
Homogenization Treatments:Each finished wheel hub will be on flash trimmer after polishing, then is carried out by worker Meticulous sanding and polishing, by the smooth of the casting surface sanding and polishing of workpiece;
Heat spinning:High temperature, by workpiece heat, inlet wire spinning, before spinning, workpiece is heated, in heating process, every 3 minutes, one layer of forced fluid is sprayed to workpiece surface;
Wherein forced fluid is prepared by following components:10 parts of sylvite, 90 parts of cobalt-based self-fluxing alloyed powder, curing agent 30 parts, 30 parts of the 98%-90% concentrated sulfuric acids, 95% 150 parts of ethanol, 25 parts of thinner, 25 parts of tackifier, 3 parts of nonmetallic ceramics powder, 18 parts of coupling agent solution;
The preparation method of forced fluid includes:95% second alcohol and water is 1 by volume:4-1:8 are made into alcohol solution and add Thinner, the coupling agent solution prepared is placed in 200W-300W ultrasonic waves, stirs lower heating hydrolysis 30min-1.5h and be made 80 DEG C -90 DEG C of transparent acidifying hydrating solutions;
By three kinds of curing agent, cobalt-based self-fluxing alloyed powder and the 98%-90% concentrated sulfuric acids isothermal raw materials through high-pressure pump simultaneously It is pumped into impact flow reactor, then secondary mixing is carried out by the agitating device of reactor exit, filtering, it is white obtains primary particle size The mixed liquor of carbon black, control ph 3-6,80 DEG C -90 DEG C of temperature;
80 DEG C -90 DEG C transparent acidifying hydrating solutions, which are simultaneously added in sylvite, to be stirred 0.5-1h and forms the first salt-mixture, then by one The mixed liquor of secondary particle diameter white carbon, which is added in the first salt-mixture, stirs 0.5-1h, stands 1-2h, adds nonmetallic ceramics powder and increasing Stick agitation and filtration produces forced fluid;
The pre-heat treatment:By semi-finished product house in solid solution furnace, in temperature under the conditions of 525 DEG C -535 DEG C, the duration 6.5 The solution treatment of hour;Come out in 20s from solid solution furnace, quenched in 70 DEG C of mixed solution;It is 155 DEG C -170 DEG C in temperature, The artificial aging of 5 hours duration;
Wherein mixed solution is prepared by following components:25 parts of hydrochloric acid, 35 parts of molding bonded agent, 20 parts of parts of paraffin, 25 parts of tungsten powder, 25 parts of polythioether rubber, 30 parts of ammonium bisulfite, 20 parts of talcum powder, 18 parts of OPE, surface-active 17 parts of agent, 2060 parts of water, 12 parts of cladding, 6 parts of rutile type titanium white, 3 parts of urea, 40% 17 parts of aqueous solution of nitric acid;
The preparation method of mixed solution includes:
Paraffin is put into pond, adds 30% water and salt acid soak, immersion obtains mixture one in 1-2 days;
Molding bonded agent is mixed with polythioether rubber and 20%, beats 3 hours, obtains mixture two;
By in the language mixture two of mixture one after cladding input stirring, heating, heating-up temperature is 100 DEG C, heats 10-12 Hour;Rutile type titanium white, urea are mixed after the 2-3 hours of heating cladding, puts into and 10- is heated in surfactant 12 hours;Hereafter took glue once every 6 hours, take glue in three times, it is 3 to take glue amount proportion three times:2:1;
The glue taken for the first time is mixed with tungsten powder, the water for adding 5% is beaten, and the glue taken for the second time mixes with ammonium bisulfite Close, the water for adding 10% is beaten, and the glue taken for the third time mixes with talcum powder, and the water for adding 5% is beaten;
Foam caused by beating three times is taken, after foam is settled into liquid, high temperature groove is put into OPE and stands and melt After changing 15min-45min, ultrasonic wave-agitating device is opened, while injects 40% aqueous solution of nitric acid and the dilution of 30% water, 80 DEG C -90 DEG C of post cure 1h-3h, ultrasonic power 100W-300W, mixing speed 60-150rpm, you can;
Shot-peening:Using high-pressure blast or compressed air, the workpiece surface that is blown out impacting of its high speed is reached into cleaning Effect;
Spinning:Under high pressure effect, workpiece melts again, fills die cavity with high speed, and coagulate under pressure Gu;
Heat treatment:By semi-finished product house in solid solution furnace, in temperature under the conditions of 525 DEG C -535 DEG C, the duration 6.5 is small When solution treatment;Come out in 20s from solid solution furnace, quenched in 70 DEG C of the aqueous solution;It is 155 DEG C -170 DEG C in temperature, continues The artificial aging of 5 hours time;
Shot-peening:Using high-pressure blast or compressed air, the workpiece surface that is blown out impacting of its high speed is reached into cleaning Effect;
Machine adds:Due to complex-shaped, point 4 procedures processing, the Vehicle Processing face-another face of brill decoration hole-Vehicle Processing-brill valve inside Hole;After the completion of processing, polishing is polished;
Application:Pre-processed, including 9 procedures, respectively 2 oil removings, 1 rinses, 1 degreasing, and 1 rinses, plating Chromium, 2 deionized water rinsings;After flushing at a temperature of 120 DEG C, dry within 15 minutes;Hand spray is carried out again, sprays bottom powder-water spray Property paint-spray transparent powder, often spraying one layer of coating will be once heating and curing processing, and curing process temperature is 230 DEG C -240 DEG C, Time is 20-24 minutes.
Wherein coupling agent solution is specially:Coupling agent 70%, talcum powder 12%, agstone 5%, rutile type titanium white 3%, water 10%.
Wherein coupling agent solution preparation method includes:Talcum powder and the water of half are added in full of nitrogen reactor, is risen Temperature is stirred to being completely dissolved to 50~60 DEG C, and is incubated 1~2h;Stone is added in the container full of carbon dioxide in addition The water of limestone flour and half, is warming up to 40~50 DEG C, and stirring is to being completely dissolved;Both are mixed again, heats 90-110 DEG C, filtering Liquid is obtained, rutile type titanium white is added, continues to heat, is completely dissolved to rutile type titanium white, finally by coupling agent Stirring is added under normal temperature.
By the existing wheel hub preparation technology of Experimental Comparison, the contrast of gained wheel hub:
Weight can mitigate 30 parts -40 parts;When speed is 90-120km/h, the few 0.0138L/10Okm of oil consumption theobromine, hit Hit intensity 12Mpa, pressure 3Mpa;By taking Audi car as an example, 39.5 parts of aluminium wheels weight saving;In 90-120km/h speeds, Oil consumption can reduce 0.05L/10Okm.And when being travelled in city, it can reduce oil consumption 0.04/10Okm, every 100,000 kilometers of fuel-economizings 40- 50L, impact strength 12Mpa, pressure 3Mpa.
The mechanical property of wheel hub is improved, the bulk strength and corrosion resistance of wheel greatly improved in casting rotation new technology, and Machine-finish allowance is greatly decreased, and wheel service life and security significantly improve, and is advantageous to vehicle loss of weight fuel-economizing, wheel production Cost declines.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (9)

1. lift the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of wheel, it is characterised in that:The technique main flow is to melt Preforming-Homogenization Treatments-heating spinning-the pre-heat treatment-shot-peening-spinning-heat treatment-shot-peening-the machine of change-casting adds-application;Tool Body is:
Fusing:Prepare aluminium alloy as requested, melted using electric smelter;
Cast preforming:Liquid metal is filled die cavity under high pressure effect with high speed using compression casting, and pressing Solidify under power effect and obtain casting;
Homogenization Treatments:Each finished wheel hub will be on flash trimmer after polishing, then is carried out by worker meticulous Sanding and polishing, by the smooth of the casting surface sanding and polishing of workpiece;
Heat spinning:High temperature, by workpiece heat, inlet wire spinning, before spinning, workpiece is heated, in heating process, every 3 points Clock, one layer of forced fluid is sprayed to workpiece surface;
Described forced fluid is prepared by following components:Sylvite 1-10 parts, cobalt-based self-fluxing alloyed powder 20-90 parts, Gu Agent 1-30 parts, 98%-90% concentrated sulfuric acid 10-30 parts, 95% ethanol 130-150 parts, thinner 5-25 parts, tackifier 5-25 Part, nonmetallic ceramics powder 2-3 parts, coupling agent solution 15-18 parts;
The preparation method of forced fluid includes:95% second alcohol and water is 1 by volume:4-1:8 are made into alcohol solution and add viscosity reduction Agent, the coupling agent solution prepared is placed in 200W-300W ultrasonic waves, stir lower heating hydrolysis 30min-1.5h be made 80 DEG C- 90 DEG C of transparent acidifying hydrating solutions;
Three kinds of curing agent, cobalt-based self-fluxing alloyed powder and the 98%-90% concentrated sulfuric acids isothermal raw materials are pumped into simultaneously through high-pressure pump In impact flow reactor, then the secondary mixing of agitating device progress by reactor exit, filtering, obtain primary particle size white carbon Mixed liquor, control ph 3-6,80 DEG C -90 DEG C of temperature;
80 DEG C -90 DEG C transparent acidifying hydrating solutions, which are simultaneously added in sylvite, to be stirred 0.5-1h and forms the first salt-mixture, then will once grain The mixed liquor of footpath white carbon, which is added in the first salt-mixture, stirs 0.5-1h, stands 1-2h, adds nonmetallic ceramics powder and tackifier Agitation and filtration produces forced fluid;
The pre-heat treatment:By semi-finished product house in solid solution furnace, in temperature under the conditions of 525 DEG C -535 DEG C, 6.5 hours duration Solution treatment;Come out in 20s from solid solution furnace, quenched in 70 DEG C of mixed solution;It is 155 DEG C -170 DEG C in temperature, continues The artificial aging of 5 hours time;
The mixed solution is prepared by following components:Hydrochloric acid 15-25 parts, molding bonded agent 30-35 parts, 15 parts of paraffin- 20 parts of parts, tungsten powder 15-25 parts, polythioether rubber 20-25 parts, ammonium bisulfite 25-30 parts, talcum powder 10-20 parts, oxidation are poly- Ethylene waxes 14-18 parts, surfactant 12-17 parts, water 2000-2060 parts, cladding 10-12 parts, rutile type titanium white 3-6 Part, nano silicon 1-3 parts, 40% aqueous solution of nitric acid 15-17 parts;
The preparation method of mixed solution includes:
Paraffin is put into pond, adds 30% water and salt acid soak, immersion obtains mixture one in 1-2 days;
Molding bonded agent is mixed with polythioether rubber and 20%, beats 3 hours, obtains mixture two;
By in the language mixture two of mixture one after cladding input stirring, heating, heating-up temperature is 100 DEG C, and heating 10-12 is small When;Rutile type titanium white, nano silicon are mixed after the 2-3 hours of heating cladding, put into surfactant Heat 10-12 hours;Hereafter took glue once every 6 hours, take glue in three times, it is 3 to take glue amount proportion three times:2:1;
The glue taken for the first time is mixed with tungsten powder, the water for adding 5% is beaten, and the glue taken for the second time mixes with ammonium bisulfite, The water for adding 10% is beaten, and the glue taken for the third time mixes with talcum powder, and the water for adding 5% is beaten;
Foam caused by beating three times is taken, after foam is settled into liquid, high temperature groove is put into OPE and stands and melt After 15min-45min, ultrasonic wave-agitating device is opened, while injects 40% aqueous solution of nitric acid and the dilution of 30% water, 80 DEG C- 90 DEG C of post cure 1h-3h, ultrasonic power 100W-300W, mixing speed 60-150rpm, you can;
Shot-peening:Using high-pressure blast or compressed air, the workpiece surface that is blown out impacting of its high speed is reached into cleaning effect;
Spinning:Under high pressure effect, workpiece melts again, fills die cavity with high speed, and solidify under pressure;
Heat treatment:By semi-finished product house in solid solution furnace, in temperature under the conditions of 525 DEG C -535 DEG C, 6.5 hours duration Solution treatment;Come out in 20s from solid solution furnace, quenched in 70 DEG C of the aqueous solution;It is 155 DEG C -170 DEG C in temperature, the duration 5 The artificial aging of hour;
Shot-peening:Using high-pressure blast or compressed air, the workpiece surface that is blown out impacting of its high speed is reached into cleaning effect;
Machine adds:Due to complex-shaped, point 4 procedures processing, the Vehicle Processing face-another face of brill decoration hole-Vehicle Processing-brill valve core bore; After the completion of processing, polishing is polished;
Application:Pre-processed, including 9 procedures, respectively 2 oil removings, 1 rinses, and 1 degreasing, 1 rinses, chromium plating, and 2 Road deionized water rinsing;After flushing at a temperature of 120 DEG C, dry within 15 minutes;Carry out hand spray again, spray bottom powder-spray water paint- Transparent powder is sprayed, often spraying one layer of coating will be once heating and curing processing, and curing process temperature is 230 DEG C -240 DEG C, the time For 20-24 minutes.
2. according to the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of the lifting wheel described in claim 1, its feature exists In:Described forced fluid is prepared by following components:1 part of sylvite, 20 parts of cobalt-based self-fluxing alloyed powder, 1 part of curing agent, 10 parts of the 98%-90% concentrated sulfuric acids, 95% 130 parts of ethanol, 5 parts of thinner, 5 parts of tackifier, 2 parts of nonmetallic ceramics powder, coupling agent 15 parts of solution.
3. according to the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of the lifting wheel described in claim 1, its feature exists In:Described forced fluid is prepared by following components:10 parts of sylvite, 90 parts of cobalt-based self-fluxing alloyed powder, curing agent 30 Part, 30 parts of the 98%-90% concentrated sulfuric acids, 95% 150 parts of ethanol, 25 parts of thinner, 25 parts of tackifier, 3 parts of nonmetallic ceramics powder, occasionally Join 18 parts of agent solution.
4. according to the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of the lifting wheel described in claim 1, its feature exists In:Mixed solution is prepared by following components:15 parts of hydrochloric acid, 30 parts of molding bonded agent, 15 parts of paraffin, 15 parts of tungsten powder, 20 parts of polythioether rubber, 25 parts of ammonium bisulfite, 10 parts of talcum powder, 14 parts of OPE, 12 parts of surfactant, water 2000 parts, 10 parts of cladding, 3 parts of rutile type titanium white, 1 part of nano silicon, 40% 15 parts of aqueous solution of nitric acid.
5. according to the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of the lifting wheel described in claim 1, its feature exists In:Described mixed solution is prepared by following components:25 parts of hydrochloric acid, 35 parts of molding bonded agent, 20 parts of parts of paraffin, tungsten powder 25 parts of end, 25 parts of polythioether rubber, 30 parts of ammonium bisulfite, 20 parts of talcum powder, 18 parts of OPE, surfactant 17 Part, 2060 parts of water, 12 parts of cladding, 6 parts of rutile type titanium white, 3 parts of nano silicon, 40% 17 parts of aqueous solution of nitric acid.
6. according to the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of the lifting wheel described in claim 1, its feature exists In:Described coupling agent solution is specially:Coupling agent 68-70%, talcum powder 5-12%, agstone 1-5%, rutile type titanium White powder 2-3%, remaining is water.
7. according to the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of the lifting wheel described in claim 6, its feature exists In:Described coupling agent solution is specially:Coupling agent 68%, talcum powder 5%, agstone 1%, rutile type titanium white 2%, Water 24%.
8. according to the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of the lifting wheel described in claim 6, its feature exists In:Described coupling agent solution is specially:Coupling agent 70%, talcum powder 12%, agstone 5%, rutile type titanium white 3%, water 10%.
9. according to the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of the lifting wheel described in claim 6, its feature exists In:Described coupling agent solution preparation method includes:Talcum powder and the water of half are added in full of nitrogen reactor, is warming up to 50~60 DEG C, while stir to being completely dissolved, and it is incubated 1~2h;Lime stone is added in the container full of carbon dioxide in addition The water of powder and half, is warming up to 40~50 DEG C, and stirring is to being completely dissolved;Both are mixed again, 90-110 DEG C is heated, is filtrated to get Liquid, rutile type titanium white is added, continue to heat, be completely dissolved to rutile type titanium white, finally by coupling agent normal temperature It is lower to add stirring.
CN201710538993.1A 2017-07-04 2017-07-04 Lift the hot lathe turner's skill of aluminium alloy wheel hub of the overall abrasion resistance of wheel CN107335974A (en)

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CN111548725A (en) * 2020-05-20 2020-08-18 谢克豪 Golden paint and production process and application thereof

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CN104128743A (en) * 2014-06-16 2014-11-05 内蒙古华唐都瑞轮毂有限公司 Low-pressure cast spinning short process of aluminum alloy hubs
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Application publication date: 20171110