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Powder coating for motorcycle hub coating and coating process thereof

A technology of powder coatings and wheel hubs, which is applied in the direction of powder coatings, anti-corrosion coatings, polyester coatings, etc., and can solve problems such as easy powdering, need for grinding, and low efficiency

Inactive Publication Date: 2020-10-20
幻彩星瀚(南京)新材料科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the main body of the motorcycle hub (including fuel and electric) is cast aluminum alloy. Because the casting surface is relatively rough, the first coating is powder coating, followed by primer and top coat. The disadvantages of traditional primer are as follows: 1. 1. The leveling is not good and needs to be polished; 2. The weather resistance is poor and it is easy to pulverize; 3. The coating process is cumbersome, low in efficiency, not environmentally friendly, and high in cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A powder coating for motorcycle wheel coating, consisting of the following raw materials in mass percentage:

[0049] Polyester resin 65%

[0050] Hardener 6%

[0051] Leveling agent 1%

[0052] Benzoin 0.5%

[0053] Silane accidental agent 1.5%

[0054] Titanium dioxide 10%

[0055] Carbon black 0.5%

[0056] Filler barium sulfate 15.5%.

[0057] The viscosity of polyester resin is 4000--5000 mPa.s / 200 degrees, and the acid value is 27-33 mpa.s / 200 degrees.

[0058] The curing agent is triglycidyl isocyanurate.

[0059] The leveling agent is an acrylic copolymer, and the molecular weight of the acrylic copolymer is 3000-4000.

[0060] A coating process of black high-gloss powder coating, which is characterized in that the casting blank of the wheel hub is polished, then pre-treated, then coated with powder coating, baked, and finally off the assembly line to complete the coating of the wheel hub.

Embodiment 2

[0062] A powder coating for motorcycle wheel coating, consisting of the following raw materials in mass percentage:

[0063] Polyester resin 75%

[0064] Hardener 4%

[0065] Leveling agent 1%

[0066] Benzoin 0.8%

[0067] Silane accidental agent 1%

[0068] Titanium dioxide 10%

[0069] Carbon black 0.2%

[0070] Filler barium sulfate 8%.

[0071] The viscosity of polyester resin is 4000--5000 mPa.s / 200 degrees, and the acid value is 27-33 mpa.s / 200 degrees.

[0072] The curing agent is triglycidyl isocyanurate.

[0073] The leveling agent is an acrylic copolymer, and the molecular weight of the acrylic copolymer is 3000-4000.

[0074] A coating process of black high-gloss powder coating, which is characterized in that the casting blank of the wheel hub is polished, then pre-treated, then coated with powder coating, baked, and finally off the assembly line to complete the coating of the wheel hub.

Embodiment 3

[0076] A powder coating for motorcycle wheel coating, consisting of the following raw materials in mass percentage:

[0077] Polyester resin 70%

[0078] Curing agent 5.2%

[0079] Leveling agent 1%

[0080] Benzoin 0.5%

[0081] Silane accidental agent 1%

[0082] Titanium dioxide 10%

[0083] Carbon black 0.2%

[0084] Filler Barium Sulfate 12.1%.

[0085] The viscosity of polyester resin is 4000--5000 mPa.s / 200 degrees, and the acid value is 27-33 mpa.s / 200 degrees.

[0086] The curing agent is triglycidyl isocyanurate.

[0087] The leveling agent is an acrylic copolymer, and the molecular weight of the acrylic copolymer is 3000-4000.

[0088] A coating process of black high-gloss powder coating, which is characterized in that the casting blank of the wheel hub is polished, then pre-treated, then coated with powder coating, baked, and finally off the assembly line to complete the coating of the wheel hub.

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Abstract

The invention relates to a powder coating for motorcycle hub coating. The powder coating is prepared from the following raw materials in percentage by mass: 65 to 75 percent of polyester resin, 4 to 6percent of a curing agent, 0.8 to 1.2 percent of a leveling agent, 0.3 to 0.8 percent of benzoin, 0.5 to 2 percent of a silane coupling agent, 5 to 15 percent of titanium dioxide, 0.1 to 0.5 percentof carbon black and 8 to 20 percent of a filler (barium sulfate), wherein the viscosity of the polyester resin is 4000 to 5000 mPa.s / 200 degrees, the acid value is 27 to 33 mpa.s / 200 degrees, the curing agent is triglycidyl isocyanurate, the leveling agent is an acrylic copolymer, and the molecular weight of the acrylic copolymer is 3000-4000. After the powder coating forms a paint film, the paintfilm has excellent properties such as high weather resistance, good leveling property, high gloss, and the like. The high-leveling and high-resistance powder coating is used for replacing three coatings (base powder, priming paint and finishing paint) of a traditional coating process, the coating process is simplified, energy is saved, the cost is reduced, waste water and waste gas are not generated, the environment-friendly property is greatly improved, and the environmental protection investment of enterprises is reduced.

Description

technical field [0001] The invention relates to the technical field of hub coatings, in particular to a powder coating for coating motorcycle hubs and a coating process thereof. Background technique [0002] At present, the main body of the motorcycle hub (including fuel and electric) is cast aluminum alloy. Because the casting surface is relatively rough, the first coating is powder coating, followed by primer and top coat. The disadvantages of traditional primer are as follows: 1. 1. The leveling is not good and needs to be polished; 2. The weather resistance is poor and it is easy to pulverize; 3. The coating process is cumbersome, low in efficiency, not environmentally friendly, and high in cost. Therefore, it is necessary to develop a powder coating and coating process with high resistance, high leveling and high gloss. Contents of the invention [0003] In order to solve the problems existing in the prior art, the invention provides a kind of powder coating that is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/03C09D5/08C09D7/47C09D7/61B05D3/00B05D3/02B05D7/14
CPCB05D3/002B05D3/0254B05D7/14B05D7/24C08K2003/2241C08K2003/3045C08L2201/08C09D5/033C09D5/08C09D167/00C08L33/02C08K13/02C08K3/30C08K3/04C08K3/22C08K5/54
Inventor 郭现卿郭航
Owner 幻彩星瀚(南京)新材料科技有限公司
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