CN107262350A - Powder injection process in the production process of common aluminum alloy wheel hub - Google Patents
Powder injection process in the production process of common aluminum alloy wheel hub Download PDFInfo
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- CN107262350A CN107262350A CN201710538506.1A CN201710538506A CN107262350A CN 107262350 A CN107262350 A CN 107262350A CN 201710538506 A CN201710538506 A CN 201710538506A CN 107262350 A CN107262350 A CN 107262350A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
- B05D1/06—Applying particulate materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/12—Applying particulate materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/546—No clear coat specified each layer being cured, at least partially, separately
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2350/00—Pretreatment of the substrate
- B05D2350/60—Adding a layer before coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2451/00—Type of carrier, type of coating (Multilayers)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
- B05D2601/22—Silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2602/00—Organic fillers
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- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Powder injection process in the production process of common aluminum alloy wheel hub, comprises the following steps：Phosphatization, drying, spray PZ660 powdery paints, the solidification of PZ powder, the outdoor powder of spray, solidification, finished product；Wheel hub is to be sprayed in advanced and environmentally friendly application automatic assembly line using senior electrostatic gun and high speed rotating cup spray gun, uniform coating thickness, color gloss are uniform, not only coating quality is good, and save coating, wheel hub is handled before first being carried out before spraying, it is allowed to form one layer of chemical composition coating, can so improves the adhesion property of coating, pre-treatment is handled using the Trend of Chrome-free of environment-friendly type.
Description
Technical field：
The present invention relates to the production field of common aluminum alloy wheel hub, and in particular in the production process of common aluminum alloy wheel hub
Powder injection process.
Background technology：
With the fast development of automobile industry, continuous surging, safety and environmental regulation that Oil-saving for Modern Motor Vehicles consumption reduction is required
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 the 70% of the car total market size.And counted according to the parties concerned, this ratio in 2003 is 50% or so.Aluminium alloy quality is light,
Intensity is high, formability is good, moderate, the rate of recovery is high, to reduction automotive dead weight, reduces 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 weight, energy-conservation, rapid heat dissipation, corrosion-resistant, processing
Property it is good the features such as, just progressively substitution steel wheel hub and as optimal selection.The manufacturing process of current aluminium alloy wheel hub mainly has casting
Method, forging method and spinning process etc. are made, the research and applicable cases to the various forming technologies of aluminium alloy wheel hub herein is summarized, from
The angle for the problems such as considering wheel hub quality and manufacturing cost is copied, various aluminum alloy wheel forming technologies have been inquired into emphatically；
The content of the invention：
The technical problems to be solved by the invention are to overcome prior art to provide the life suitable for common aluminum alloy wheel hub
Powder injection process during production.
The technical problems to be solved by the invention are realized using following technical scheme.
Powder injection process in the production process of common aluminum alloy wheel hub, it is characterised in that：Comprise the following steps：Phosphatization, drying,
Spray PZ660 powdery paints, the solidification of PZ powder, the outdoor powder of spray, solidification, finished product；
Specially：Wheel hub is put into phosphating pond, 80-90 DEG C of processing times are 16-20 minutes, forms phosphatization thickness and reach
The ratio of 10-30g/m2, solution free acidity and total acidity is 1：7-8；Warm-up time is long, and solution evaporation amount is big, and energy consumption is big, phosphorus
Change deposition many；
Drying：Phosphating coat baking is abundant, and temperature should set 110 DEG C -- and 140 DEG C, baking time can not be long, 10-15
Minute, in order to avoid phosphating coat is too high due to baking temperature, baking time is long and causes phosphating coat efflorescence, influences the adhesive force of coating
And corrosion resistance；
Spray PZ660 powdery paints：Powder spraying system parameter：
Fluidization air pressure：Start 1.5kg/cm2, then 1kg/cm2
Transmit air pressure：0.5---0.8kg/cm2
Voltage：65---70KV
Spray gun is with Workpiece painting distance controlling in the range of 100-300mm；
PZ660 powder may be reused, and the usage amount of powder will be not less than 80% in work progress, and nozzle must be determined
When cleaned with air blast, once the nozzle with converter plant is more easily used and cleaned within every 30 minutes；
The thickness of PZ bottom powder coatings should be controlled in following scope：55~80 μm；
PZ solidifies：Before the outdoor powder of spraying, PZ660 coating must semi-solid preparation or at least gel；
When toasting PZ660 powder coatings, workpiece surface actual temperature cannot be below 160 DEG C or higher than 220 DEG C, and coating is right
Infrared radiation heating can be used during stream curing oven or blowing hot wind is used；Furnace temperature must uniformly and temperature is no more than 220
℃；
The outdoor powder of spray：After the solidification of PZ660 bottoms powder coating, outdoor powder can be sprayed immediately, outdoor powder coating
Thickness must be controlled in following scope：It should be 80~120 μm；Outdoor powder is prepared from the following components：
30-35 parts of cobalt-based self-fluxing alloyed powder, 30-35 parts of nonmetallic ceramics powder, 10-12 parts of molding bonded agent, quartz
3-6 parts of powder, 3-6 parts of mica powder, 3-6 parts of talcum powder, 5-15 parts of curing agent, 5-10 parts of modified epoxy, emulsifying agent 10-13
Part, 2-3 parts of organosilicon self-cross linking monomer, 2-3 parts of acrylic monomer, 2-3 parts of acrylic ester monomer, fluoroacrylate monomers
2-3 parts, 2-3 parts of fluoroacrylate monomers, 6-9 parts of initiator, 6-9 parts of dispersant, 6-9 parts of wetting agent, 6-9 parts of thickener.
Its preparation method is specially：Water, emulsifying agent, organosilicon self-cross linking monomer, acrylic compounds are added in pre-emulsification kettle
Pre-emulsified mixture is made in monomer, acrylic ester monomer, fluoroacrylate monomers, emulsification；
Silica flour, mica powder, nano silicon, talcum powder and pre-emulsified mixture are mixed and added in reactor,
75 DEG C are cooled within 4 hours with 90 DEG C of stirrings, silane coupler is added, is stirred continuously, after 20 minutes, press filtration takes powder；
Powder is mixed with phosphate ester starch, is placed in cloth bag, high speed rotary-drum is put into, molding bonded agent and 3 times and phosphorus is added
The water mixing of acid esters starch, pours into high speed rotary-drum, rotates roller, liquid is thrown away, collect liquid；
By obtained pre-emulsified mixture, first take in 1/5 addition reactor and heat up, the mixing of initiator and water is added dropwise
Thing, then remaining 4/5 pre-emulsified mixture is added dropwise, nano modification fluorine carbon emulsion is made；
The mixture of the addition nano modification fluorine carbon emulsion in paint kettle, dispersant, wetting agent, thickener and liquid, is stirred
Mix scattered 10-15 minutes, collect mixture；
Cobalt-based self-fluxing alloyed powder, abros powder, nonmetallic ceramics powder and mixture are mixed, stirring, 1
After hour, filtering takes solid, dried, you can obtains finished product；
Solidification：Condition of cure, 200 DEG C, 10 minutes, the necessary homogeneous constant of furnace temperature did not allowed fluctuating range too big and ripple
Dynamic speed is too fast.Furnace temperature fluctuation is no more than ± 5 degree.
Product inspection.
Further technology：Described outdoor powder is prepared from the following components：
30 parts of cobalt-based self-fluxing alloyed powder, 30 parts of nonmetallic ceramics powder, 10 parts of molding bonded agent, 3 parts of silica flour, mica
3 parts of powder, 3 parts of talcum powder, 5 parts of curing agent, 5 parts of modified epoxy, 10 parts of emulsifying agent, 2 parts of organosilicon self-cross linking monomer, propylene
2 parts of acrylic monomer, 2 parts of acrylic ester monomer, 2 parts of fluoroacrylate monomers, 2 parts of fluoroacrylate monomers, 6 parts of initiator,
6 parts of dispersant, 6 parts of wetting agent, 6 parts of thickener.
Further technology：Described outdoor powder is prepared from the following components：
35 parts of cobalt-based self-fluxing alloyed powder, 35 parts of nonmetallic ceramics powder, 12 parts of molding bonded agent, 6 parts of silica flour, mica
6 parts of powder, 6 parts of talcum powder, 15 parts of curing agent, 10 parts of modified epoxy, 13 parts of emulsifying agent, 3 parts of organosilicon self-cross linking monomer, third
3 parts of alkene acrylic monomer, 3 parts of acrylic ester monomer, 3 parts of fluoroacrylate monomers, 3 parts of fluoroacrylate monomers, initiator 9
Part, 9 parts of dispersant, 9 parts of wetting agent, 9 parts of thickener.
Further technology：Described molding bonded agent is prepared from including following components：20-30 parts of potato, nanometer two
3-5 parts of silica, 9-12 parts of liquid low-molecular polyamide, 0.4-0.8 parts of silane coupler polysiloxanes, diethanol amine 40-
50-60 parts of 80 parts, polyvinyl alcohol and oxidized starch, 10-15 parts of vinylacetate, 1-10 parts of plasticizer, base polyurethane prepolymer for use as 15-
25 parts, 200-250 parts of deionized water, 60-70 parts of ammoniacal liquor.
Further technology：Described molding bonded agent is prepared from including following components：20 parts of potato, nanometer titanium dioxide
3 parts of silicon, 9 parts of liquid low-molecular polyamide, 0.4 part of silane coupler polysiloxanes, 40 parts of diethanol amine, polyvinyl alcohol and oxygen
Change 50 parts of starch, 10 parts of vinylacetate, 1 part of plasticizer, 15 parts of base polyurethane prepolymer for use as, 200 parts of deionized water, 60 parts of ammoniacal liquor.
Further technology：Described molding bonded agent is prepared from including following components：30 parts of potato, nanometer titanium dioxide
5 parts of silicon, 12 parts of liquid low-molecular polyamide, 0.8 part of silane coupler polysiloxanes, 80 parts of diethanol amine, polyvinyl alcohol and
60 parts of oxidized starch, 15 parts of vinylacetate, 10 parts of plasticizer, 25 parts of base polyurethane prepolymer for use as, 250 parts of deionized water, ammoniacal liquor 70
Part.
Further technology：Described molding bonded agent is prepared from by following steps：Using potato as major ingredient, it is respectively washed
Impurity elimination, peeling, and sequentially add after being pulverized and mixed nano silicon, deionized water 1~2 atmospheric pressure, 100~
Reacted at 130 DEG C 20~40 minutes and form mixed glue solution, sequentially add the poly- silicon of liquid low-molecular polyamide, silane coupler
Oxygen alkane and diethanol amine mix stirring；
Polyvinyl alcohol and vinylacetate, base polyurethane prepolymer for use as and ammoniacal liquor are mixed, vavuum pump and agitator is started, made anti-
Answer kettle internal pressure to be less than 2666pa, be evacuated 2 hours at 100-120 DEG C, be cooled to room temperature；
Both mixtures are mixed, coordinate plasticizer, are stirred 1 minute, cooling, you can.
Beneficial effect：Wheel hub is that cup is revolved using senior electrostatic gun and at a high speed in advanced and environmentally friendly application automatic assembly line
Spray gun is sprayed, and uniform coating thickness, color gloss are uniform, and not only coating quality is good, and saves coating, and wheel hub is in spraying
Pre-treatment is first carried out before, is allowed to form one layer of chemical composition coating, the adhesion property of coating can be so improved, and pre-treatment is to adopt
Handled with the Trend of Chrome-free of environment-friendly type.
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：Powder injection process in the production process of common aluminum alloy wheel hub, comprises the following steps：Phosphatization, drying, spray
PZ660 powdery paints, the solidification of PZ powder, the outdoor powder of spray, solidification, finished product；
Specially：Wheel hub is put into phosphating pond, 80-90 DEG C of processing times are 16-20 minutes, forms phosphatization thickness and reach
The ratio of 10-30g/m2, solution free acidity and total acidity is 1：7-8；Warm-up time is long, and solution evaporation amount is big, and energy consumption is big, phosphorus
Change deposition many；
Drying：Phosphating coat baking is abundant, and temperature should set 110 DEG C -- and 140 DEG C, baking time can not be long, 10-15
Minute, in order to avoid phosphating coat is too high due to baking temperature, baking time is long and causes phosphating coat efflorescence, influences the adhesive force of coating
And corrosion resistance；
Spray PZ660 powdery paints：Powder spraying system parameter：
Fluidization air pressure：Start 1.5kg/cm2, then 1kg/cm2
Transmit air pressure：0.5---0.8kg/cm2
Voltage：65---70KV
Spray gun is with Workpiece painting distance controlling in the range of 100-300mm；
PZ660 powder may be reused, and the usage amount of powder will be not less than 80% in work progress, and nozzle must be determined
When cleaned with air blast, once the nozzle with converter plant is more easily used and cleaned within every 30 minutes；
The thickness of PZ bottom powder coatings should be controlled in following scope：55~80 μm；
PZ solidifies：Before the outdoor powder of spraying, PZ660 coating must semi-solid preparation or at least gel；
When toasting PZ660 powder coatings, workpiece surface actual temperature cannot be below 160 DEG C or higher than 220 DEG C, and coating is right
Infrared radiation heating can be used during stream curing oven or blowing hot wind is used；Furnace temperature must uniformly and temperature is no more than 220
℃；
The outdoor powder of spray：After the solidification of PZ660 bottoms powder coating, outdoor powder can be sprayed immediately, outdoor powder coating
Thickness must be controlled in following scope：It should be 80~120 μm；Described outdoor powder is prepared from the following components：
30 parts of cobalt-based self-fluxing alloyed powder, 30 parts of nonmetallic ceramics powder, 10 parts of molding bonded agent, 3 parts of silica flour, mica
3 parts of powder, 3 parts of talcum powder, 5 parts of curing agent, 5 parts of modified epoxy, 10 parts of emulsifying agent, 2 parts of organosilicon self-cross linking monomer, propylene
2 parts of acrylic monomer, 2 parts of acrylic ester monomer, 2 parts of fluoroacrylate monomers, 2 parts of fluoroacrylate monomers, 6 parts of initiator,
6 parts of dispersant, 6 parts of wetting agent, 6 parts of thickener.
Its preparation method is specially：Water, emulsifying agent, organosilicon self-cross linking monomer, acrylic compounds are added in pre-emulsification kettle
Pre-emulsified mixture is made in monomer, acrylic ester monomer, fluoroacrylate monomers, emulsification；
Silica flour, mica powder, nano silicon, talcum powder and pre-emulsified mixture are mixed and added in reactor,
75 DEG C are cooled within 4 hours with 90 DEG C of stirrings, silane coupler is added, is stirred continuously, after 20 minutes, press filtration takes powder；
Powder is mixed with phosphate ester starch, is placed in cloth bag, high speed rotary-drum is put into, molding bonded agent and 3 times and phosphorus is added
The water mixing of acid esters starch, pours into high speed rotary-drum, rotates roller, liquid is thrown away, collect liquid；
By obtained pre-emulsified mixture, first take in 1/5 addition reactor and heat up, the mixing of initiator and water is added dropwise
Thing, then remaining 4/5 pre-emulsified mixture is added dropwise, nano modification fluorine carbon emulsion is made；
The mixture of the addition nano modification fluorine carbon emulsion in paint kettle, dispersant, wetting agent, thickener and liquid, is stirred
Mix scattered 10-15 minutes, collect mixture；
Cobalt-based self-fluxing alloyed powder, abros powder, nonmetallic ceramics powder and mixture are mixed, stirring, 1
After hour, filtering takes solid, dried, you can obtains finished product；
Solidification：Condition of cure, 200 DEG C, 10 minutes, the necessary homogeneous constant of furnace temperature did not allowed fluctuating range too big and ripple
Dynamic speed is too fast.Furnace temperature fluctuation is no more than ± 5 degree.
Product inspection
Molding bonded agent is prepared from including following components：20 parts of potato, 3 parts of nano silicon, liquid low molecule
Measure 9 parts of polyamide, 0.4 part of silane coupler polysiloxanes, 40 parts of diethanol amine, polyvinyl alcohol and 50 parts of oxidized starch, acetic acid
10 parts of vinyl acetate, 1 part of plasticizer, 15 parts of base polyurethane prepolymer for use as, 200 parts of deionized water, 60 parts of ammoniacal liquor.
Molding bonded agent is prepared from by following steps：Using potato as major ingredient, be respectively washed impurity elimination, peeling, and by its
Nano silicon, deionized water are sequentially added after being pulverized and mixed 20~40 are reacted at 1~2 atmospheric pressure, 100~130 DEG C
Minute forms mixed glue solution, sequentially adds liquid low-molecular polyamide, silane coupler polysiloxanes and diethanol amine mixed
And stirring；
Polyvinyl alcohol and vinylacetate, base polyurethane prepolymer for use as and ammoniacal liquor are mixed, vavuum pump and agitator is started, made anti-
Answer kettle internal pressure to be less than 2666pa, be evacuated 2 hours at 100-120 DEG C, be cooled to room temperature；
Both mixtures are mixed, coordinate plasticizer, are stirred 1 minute, cooling, you can.
Uniform coating thickness, color gloss are uniform, and not only coating quality is good, and save coating, and wheel hub is before spraying
Pre-treatment is first carried out, is allowed to form one layer of chemical composition coating, the adhesion property of coating can be so improved, pre-treatment is to use ring
The Trend of Chrome-free processing of guarantor's type.
Embodiment 2：Powder injection process in the production process of common aluminum alloy wheel hub, comprises the following steps：Phosphatization, drying, spray
PZ660 powdery paints, the solidification of PZ powder, the outdoor powder of spray, solidification, finished product；
Specially：Wheel hub is put into phosphating pond, 80-90 DEG C of processing times are 16-20 minutes, forms phosphatization thickness and reach
The ratio of 10-30g/m2, solution free acidity and total acidity is 1：7-8；Warm-up time is long, and solution evaporation amount is big, and energy consumption is big, phosphorus
Change deposition many；
Drying：Phosphating coat baking is abundant, and temperature should set 110 DEG C -- and 140 DEG C, baking time can not be long, 10-15
Minute, in order to avoid phosphating coat is too high due to baking temperature, baking time is long and causes phosphating coat efflorescence, influences the adhesive force of coating
And corrosion resistance；
Spray PZ660 powdery paints：Powder spraying system parameter：
Fluidization air pressure：Start 1.5kg/cm2, then 1kg/cm2
Transmit air pressure：0.5---0.8kg/cm2
Voltage：65---70KV
Spray gun is with Workpiece painting distance controlling in the range of 100-300mm；
PZ660 powder may be reused, and the usage amount of powder will be not less than 80% in work progress, and nozzle must be determined
When cleaned with air blast, once the nozzle with converter plant is more easily used and cleaned within every 30 minutes；
The thickness of PZ bottom powder coatings should be controlled in following scope：55~80 μm；
PZ solidifies：Before the outdoor powder of spraying, PZ660 coating must semi-solid preparation or at least gel；
When toasting PZ660 powder coatings, workpiece surface actual temperature cannot be below 160 DEG C or higher than 220 DEG C, and coating is right
Infrared radiation heating can be used during stream curing oven or blowing hot wind is used；Furnace temperature must uniformly and temperature is no more than 220
℃；
The outdoor powder of spray：After the solidification of PZ660 bottoms powder coating, outdoor powder can be sprayed immediately, outdoor powder coating
Thickness must be controlled in following scope：It should be 80~120 μm；Described outdoor powder is prepared from the following components：
35 parts of cobalt-based self-fluxing alloyed powder, 35 parts of nonmetallic ceramics powder, 12 parts of molding bonded agent, 6 parts of silica flour, mica
6 parts of powder, 6 parts of talcum powder, 15 parts of curing agent, 10 parts of modified epoxy, 13 parts of emulsifying agent, 3 parts of organosilicon self-cross linking monomer, third
3 parts of alkene acrylic monomer, 3 parts of acrylic ester monomer, 3 parts of fluoroacrylate monomers, 3 parts of fluoroacrylate monomers, initiator 9
Part, 9 parts of dispersant, 9 parts of wetting agent, 9 parts of thickener.
Its preparation method is specially：Water, emulsifying agent, organosilicon self-cross linking monomer, acrylic compounds are added in pre-emulsification kettle
Pre-emulsified mixture is made in monomer, acrylic ester monomer, fluoroacrylate monomers, emulsification；
Silica flour, mica powder, nano silicon, talcum powder and pre-emulsified mixture are mixed and added in reactor,
75 DEG C are cooled within 4 hours with 90 DEG C of stirrings, silane coupler is added, is stirred continuously, after 20 minutes, press filtration takes powder；
Powder is mixed with phosphate ester starch, is placed in cloth bag, high speed rotary-drum is put into, molding bonded agent and 3 times and phosphorus is added
The water mixing of acid esters starch, pours into high speed rotary-drum, rotates roller, liquid is thrown away, collect liquid；
By obtained pre-emulsified mixture, first take in 1/5 addition reactor and heat up, the mixing of initiator and water is added dropwise
Thing, then remaining 4/5 pre-emulsified mixture is added dropwise, nano modification fluorine carbon emulsion is made；
The mixture of the addition nano modification fluorine carbon emulsion in paint kettle, dispersant, wetting agent, thickener and liquid, is stirred
Mix scattered 10-15 minutes, collect mixture；
Cobalt-based self-fluxing alloyed powder, abros powder, nonmetallic ceramics powder and mixture are mixed, stirring, 1
After hour, filtering takes solid, dried, you can obtains finished product；
Solidification：Condition of cure, 200 DEG C, 10 minutes, the necessary homogeneous constant of furnace temperature did not allowed fluctuating range too big and ripple
Dynamic speed is too fast.Furnace temperature fluctuation is no more than ± 5 degree.
Product inspection.
Molding bonded agent is prepared from including following components：30 parts of potato, 5 parts of nano silicon, liquid low molecule
Measure 12 parts of polyamide, 0.8 part of silane coupler polysiloxanes, 80 parts of diethanol amine, polyvinyl alcohol and 60 parts of oxidized starch, acetic acid
15 parts of vinyl acetate, 10 parts of plasticizer, 25 parts of base polyurethane prepolymer for use as, 250 parts of deionized water, 70 parts of ammoniacal liquor.
Molding bonded agent is prepared from by following steps：Using potato as major ingredient, be respectively washed impurity elimination, peeling, and by its
Nano silicon, deionized water are sequentially added after being pulverized and mixed 20~40 are reacted at 1~2 atmospheric pressure, 100~130 DEG C
Minute forms mixed glue solution, sequentially adds liquid low-molecular polyamide, silane coupler polysiloxanes and diethanol amine mixed
And stirring；
Polyvinyl alcohol and vinylacetate, base polyurethane prepolymer for use as and ammoniacal liquor are mixed, vavuum pump and agitator is started, made anti-
Answer kettle internal pressure to be less than 2666pa, be evacuated 2 hours at 100-120 DEG C, be cooled to room temperature；
Both mixtures are mixed, coordinate plasticizer, are stirred 1 minute, cooling, you can.
Uniform coating thickness, color gloss are uniform, and not only coating quality is good, and save coating, and wheel hub is before spraying
Pre-treatment is first carried out, is allowed to form one layer of chemical composition coating, the adhesion property of coating can be so improved, pre-treatment is to use ring
The Trend of Chrome-free processing of guarantor's type.
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 (7)
1. powder injection process in the production process of common aluminum alloy wheel hub, it is characterised in that：Comprise the following steps：Phosphatization, drying, spray
PZ660 powdery paints, the solidification of PZ powder, the outdoor powder of spray, solidification, finished product；
Specially：Wheel hub is put into phosphating pond, 80-90 DEG C of processing times are 16-20 minutes, forms phosphatization thickness and reach 10-
The ratio of 30g/m2, solution free acidity and total acidity is 1：7-8；Warm-up time is long, and solution evaporation amount is big, and energy consumption is big, phosphatization
Deposition is more；
Drying：Phosphating coat baking is abundant, and temperature should set 110 DEG C -- and 140 DEG C, baking time can not be long, 10-15 points
Clock, in order to avoid phosphating coat is too high due to baking temperature, baking time is long and causes phosphating coat efflorescence, influence coating adhesive force with
And corrosion resistance；
Spray PZ660 powdery paints：Powder spraying system parameter：
Fluidization air pressure：Start 1.5kg/cm2, then 1kg/cm2
Transmit air pressure：0.5---0.8kg/cm2
Voltage：65---70KV
Spray gun is with Workpiece painting distance controlling in the range of 100-300mm；
PZ660 powder may be reused, and the usage amount of powder will be not less than 80% in work progress, and nozzle must be used regularly
Air blast is cleaned, and once the nozzle with converter plant is more easily used and cleaned within every 30 minutes；
The thickness of PZ bottom powder coatings should be controlled in following scope：55~80 μm；
PZ solidifies：Before the outdoor powder of spraying, PZ660 coating must semi-solid preparation or at least gel；
When toasting PZ660 powder coatings, workpiece surface actual temperature cannot be below 160 DEG C or higher than 220 DEG C, and coating dries in convection current
Infrared radiation heating can be used when case solidifies or blowing hot wind is used；Furnace temperature must uniformly and temperature is no more than 220 DEG C；
The outdoor powder of spray：After the solidification of PZ660 bottoms powder coating, outdoor powder, the thickness of outdoor powder coating can be sprayed immediately
It must control in following scope：It should be 80~120 μm；Outdoor powder is prepared from the following components：
30-35 parts of cobalt-based self-fluxing alloyed powder, 30-35 parts of nonmetallic ceramics powder, 10-12 parts of molding bonded agent, silica flour 3-6
It is part, 3-6 parts of mica powder, 3-6 parts of talcum powder, 5-15 parts of curing agent, 5-10 parts of modified epoxy, 10-13 parts of emulsifying agent, organic
2-3 parts of silicon self-cross linking monomer, 2-3 parts of acrylic monomer, 2-3 parts of acrylic ester monomer, 2-3 parts of fluoroacrylate monomers,
2-3 parts of fluoroacrylate monomers, 6-9 parts of initiator, 6-9 parts of dispersant, 6-9 parts of wetting agent, 6-9 parts of thickener；
Its preparation method is specially：Add water in pre-emulsification kettle, emulsifying agent, organosilicon self-cross linking monomer, acrylic monomer,
Pre-emulsified mixture is made in acrylic ester monomer, fluoroacrylate monomers, emulsification；
Silica flour, mica powder, nano silicon, talcum powder and pre-emulsified mixture are mixed and added in reactor, with 90
DEG C stirring is cooled to 75 DEG C for 4 hours, adds silane coupler, is stirred continuously, after 20 minutes, press filtration takes powder；
Powder is mixed with phosphate ester starch, is placed in cloth bag, high speed rotary-drum is put into, molding bonded agent and 3 times and phosphate is added
The water mixing of starch, pours into high speed rotary-drum, rotates roller, liquid is thrown away, collect liquid；
By obtained pre-emulsified mixture, first take in 1/5 addition reactor and heat up, the mixture of initiator and water is added dropwise, then
Remaining 4/5 pre-emulsified mixture is added dropwise, nano modification fluorine carbon emulsion is made；
The mixture of the addition nano modification fluorine carbon emulsion in paint kettle, dispersant, wetting agent, thickener and liquid, stirring point
Dissipate 10-15 minutes, collect mixture；
Cobalt-based self-fluxing alloyed powder, abros powder, nonmetallic ceramics powder and mixture are mixed, stirring, 1 hour
Afterwards, filter, take solid, dry, you can obtain finished product；
Solidification：Condition of cure, 200 DEG C, 10 minutes, the necessary homogeneous constant of furnace temperature did not allowed fluctuating range too big and fluctuation speed
Degree is too fast.Furnace temperature fluctuation is no more than ± 5 degree；
Product inspection.
2. powder injection process in the production process of the common aluminum alloy wheel hub according to claim 1, it is characterised in that：It is described
Outdoor powder be prepared from the following components：
30 parts of cobalt-based self-fluxing alloyed powder, 30 parts of nonmetallic ceramics powder, 10 parts of molding bonded agent, 3 parts of silica flour, mica powder 3
Part, 3 parts of talcum powder, 5 parts of curing agent, 5 parts of modified epoxy, 10 parts of emulsifying agent, 2 parts of organosilicon self-cross linking monomer, acrylic acid
2 parts of class monomer, 2 parts of acrylic ester monomer, 2 parts of fluoroacrylate monomers, 2 parts of fluoroacrylate monomers, initiator 6 part, point
6 parts of powder, 6 parts of wetting agent, 6 parts of thickener.
3. powder injection process in the production process of the common aluminum alloy wheel hub according to claim 1, it is characterised in that：It is described
Outdoor powder be prepared from the following components：
35 parts of cobalt-based self-fluxing alloyed powder, 35 parts of nonmetallic ceramics powder, 12 parts of molding bonded agent, 6 parts of silica flour, mica powder 6
Part, 6 parts of talcum powder, 15 parts of curing agent, 10 parts of modified epoxy, 13 parts of emulsifying agent, 3 parts of organosilicon self-cross linking monomer, propylene
3 parts of acrylic monomer, 3 parts of acrylic ester monomer, 3 parts of fluoroacrylate monomers, 3 parts of fluoroacrylate monomers, 9 parts of initiator,
9 parts of dispersant, 9 parts of wetting agent, 9 parts of thickener.
4. powder injection process in the production process of the common aluminum alloy wheel hub according to claim 1, it is characterised in that：It is described
Molding bonded agent be prepared from including following components：20-30 parts of potato, 3-5 parts of nano silicon, liquid low-molecular
9-12 parts of polyamide, 0.4-0.8 parts of silane coupler polysiloxanes, 40-80 parts of diethanol amine, polyvinyl alcohol and oxidized starch
50-60 parts, 10-15 parts of vinylacetate, 1-10 parts of plasticizer, 15-25 parts of base polyurethane prepolymer for use as, 200-250 parts of deionized water,
60-70 parts of ammoniacal liquor.
5. powder injection process in the production process of the common aluminum alloy wheel hub according to claim 4, it is characterised in that：It is described
Molding bonded agent be prepared from including following components：20 parts of potato, 3 parts of nano silicon, liquid low-molecular polyamides
9 parts of amine, 0.4 part of silane coupler polysiloxanes, 40 parts of diethanol amine, polyvinyl alcohol and 50 parts of oxidized starch, vinylacetate
10 parts, 1 part of plasticizer, 15 parts of base polyurethane prepolymer for use as, 200 parts of deionized water, 60 parts of ammoniacal liquor.
6. powder injection process in the production process of the common aluminum alloy wheel hub according to claim 4, it is characterised in that：It is described
Molding bonded agent be prepared from including following components：30 parts of potato, 5 parts of nano silicon, liquid low-molecular polyamides
12 parts of amine, 0.8 part of silane coupler polysiloxanes, 80 parts of diethanol amine, polyvinyl alcohol and 60 parts of oxidized starch, vinylacetate
15 parts, 10 parts of plasticizer, 25 parts of base polyurethane prepolymer for use as, 250 parts of deionized water, 70 parts of ammoniacal liquor.
7. powder injection process in the production process of the common aluminum alloy wheel hub according to claim 4, it is characterised in that：It is described
Molding bonded agent be prepared from by following steps：Using potato as major ingredient, impurity elimination, peeling are respectively washed, and crushed mixed
Nano silicon, deionized water are sequentially added after conjunction 20~40 minutes shapes are reacted at 1~2 atmospheric pressure, 100~130 DEG C
Into mixed glue solution, sequentially add liquid low-molecular polyamide, silane coupler polysiloxanes and diethanol amine and mix stirring；
Polyvinyl alcohol and vinylacetate, base polyurethane prepolymer for use as and ammoniacal liquor are mixed, vavuum pump and agitator is started, makes reactor
Internal pressure is less than 2666pa, is evacuated 2 hours at 100-120 DEG C, is cooled to room temperature；
Both mixtures are mixed, coordinate plasticizer, are stirred 1 minute, cooling, you can.
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| CN201710538506.1A CN107262350A (en) | 2017-07-04 | 2017-07-04 | Powder injection process in the production process of common aluminum alloy wheel hub |
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| CN201710538506.1A CN107262350A (en) | 2017-07-04 | 2017-07-04 | Powder injection process in the production process of common aluminum alloy wheel hub |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109465163A (en) * | 2018-12-28 | 2019-03-15 | 深圳市银宝山新科技股份有限公司 | High solid phase semisolid workpiece surface spraying method |
| CN114000139A (en) * | 2021-12-31 | 2022-02-01 | 常州市业峰汽车部件有限公司 | Anticorrosion technology of aluminum alloy hub |
| CN117324238A (en) * | 2023-11-30 | 2024-01-02 | 常州市武进晨光金属涂料有限公司 | Coating method of decorative coating on surface of automobile steel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626780A (en) * | 2012-03-23 | 2012-08-08 | 中国科学院金属研究所 | Biomass fuel forming mold surface powder metallurgy strengthening coating material and process |
-
2017
- 2017-07-04 CN CN201710538506.1A patent/CN107262350A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626780A (en) * | 2012-03-23 | 2012-08-08 | 中国科学院金属研究所 | Biomass fuel forming mold surface powder metallurgy strengthening coating material and process |
Non-Patent Citations (3)
| Title |
|---|
| 刘金亭: "《粘合剂及其在柴油机维修上的应用》", 31 October 1979, 人民铁道出版社 * |
| 华为技术有限公司: "双层粉末涂料喷涂工艺规范", 《双层粉末涂料喷涂工艺规范》 * |
| 胡传炘: "《表面处理技术手册（修订版）》", 31 July 2009, 北京工业大学 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109465163A (en) * | 2018-12-28 | 2019-03-15 | 深圳市银宝山新科技股份有限公司 | High solid phase semisolid workpiece surface spraying method |
| CN114000139A (en) * | 2021-12-31 | 2022-02-01 | 常州市业峰汽车部件有限公司 | Anticorrosion technology of aluminum alloy hub |
| CN114000139B (en) * | 2021-12-31 | 2022-03-18 | 常州市业峰汽车部件有限公司 | Anticorrosion technology of aluminum alloy hub |
| CN117324238A (en) * | 2023-11-30 | 2024-01-02 | 常州市武进晨光金属涂料有限公司 | Coating method of decorative coating on surface of automobile steel |
| CN117324238B (en) * | 2023-11-30 | 2024-02-27 | 常州市武进晨光金属涂料有限公司 | Coating method of decorative coating on surface of automobile steel |
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