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Powder material for coating high-wear-resistance automobile hub and preparation method thereof

An automobile wheel hub, high wear resistance technology, used in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of cumbersome steps, poor coating effect, cost, etc., and achieve good product performance and good mechanical performance. , the effect of increasing wear resistance

Inactive Publication Date: 2018-05-04
BENGBU FUWOTE WHEEL MFG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the coating of automobile wheels, the coating method is often complicated, the steps are cumbersome, and it consumes a lot of manpower and material resources.
[0006] The general production process of the existing coating method for aluminum alloy automobile wheels is: material grinding→primary pretreatment→powder spraying→powder grinding→secondary pretreatment→spraying color paint→spraying transparent paint→finished product packaging, The traditional coating process steps are complicated, the coating effect is poor, and the performance of the finished coating is average, which cannot meet the needs of use

Method used

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  • Powder material for coating high-wear-resistance automobile hub and preparation method thereof
  • Powder material for coating high-wear-resistance automobile hub and preparation method thereof
  • Powder material for coating high-wear-resistance automobile hub and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] Embodiment 1: a kind of powder material for coating of high wear resistance automobile wheel hub, its components are calculated by weight percentage: 32.3% of epoxy resin, 30% of modified carboxyl-terminated saturated polyester resin, 0.7% of curing agent, Wear-resistant powder 25%, titanium dioxide 5%, quartz powder 6%, leveling agent 1%.

[0087] The curing agent is hydroxyalkylamide.

[0088] Wear-resistant powder is Al2O3.

[0089] The preparation method of modified carboxyl-terminated saturated polyester resin is:

[0090] 1) Add concentrated sulfuric acid with 1 times its weight and 70% mass fraction to the diatomite powder, filter after stirring, dry the filter residue and calcinate at 500°C for 30min to obtain refined diatomite powder; wherein, the stirring operation is Stir at 1000r / min for 10min, then reduce the rotation speed to 500r / min and continue stirring for 30min, then repeat the operation once;

[0091] 2) Grinding the bamboo fibers to 40 meshes, ad...

Embodiment 2

[0094] Embodiment 2: a kind of powder material for coating of high wear resistance automobile wheel hub, its components are calculated by weight percentage: 28.5% of epoxy resin, 34% of modified carboxyl-terminated saturated polyester resin, 0.5% of curing agent, Wear-resistant powder 25%, titanium dioxide 5%, quartz powder 6%, leveling agent 1%.

[0095] The curing agent is hydroxyalkylamide.

[0096] Wear-resistant powder is Al2O3.

[0097] The preparation method of described modified carboxyl-terminated saturated polyester resin is:

[0098] 1) Add 1.5 times its weight and 75% concentrated sulfuric acid to the diatomite powder, filter after stirring, dry the filter residue and calcinate at 600°C for 35min to obtain refined diatomite powder; wherein, the stirring operation is Stir at 1200r / min for 10min, then reduce the rotation speed to 550r / min and continue stirring for 35min, then repeat the operation once;

[0099] 2) Grind the bamboo fiber to 50 mesh, add 1.5 times t...

Embodiment 3

[0102] Embodiment 3: A kind of powder material for coating of high wear resistance automobile wheel hub, its components are calculated by weight percentage: 30% of epoxy resin, 30% of modified carboxyl-terminated saturated polyester resin, 0.5% of curing agent, Wear-resistant powder 23.5%, titanium dioxide 8%, quartz powder 7%, leveling agent 1%.

[0103] The curing agent is hydroxyalkylamide.

[0104] Wear-resistant powder is Al2O3.

[0105] The preparation method of modified carboxyl-terminated saturated polyester resin is:

[0106] 1) Add 1.5 times its weight and 80% concentrated sulfuric acid to the diatomite powder, filter after stirring, dry the filter residue and calcinate at 800°C for 40min to obtain refined diatomite powder; wherein, the stirring operation is Stir at 1500r / min for 10min, then reduce the rotation speed to 600r / min and continue stirring for 40min, then repeat the operation once;

[0107] 2) Grinding the bamboo fibers to 80 mesh, adding 2 times the vo...

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Abstract

The invention provides a powder material for coating a high-wear-resistance automobile hub, relating to the technical field of the machining and production of automobile hubs. The powder material contains the following components in percentage by weight (100% in total): 28%-33% of epoxy resin, 30%-34% of modified carboxyl-terminated saturated polyester resin, 0.5%-0.7% of a curing agent, 20%-25% of wear-resisting powder, 5%-10% of titanium dioxide, 5%-7% of quartz powder and 0.8%-1% of a flatting agent. According to the powder material, the adhesion force between a coating and the hub is enhanced, so that the wear resistance, smoothness and glossiness of the hub are improved.

Description

Technical field: [0001] The invention relates to the technical field of automobile wheel hub processing and production, in particular to a powder material for coating highly wear-resistant automobile wheel hubs and a preparation method thereof. Background technique: [0002] With the development of the motor vehicle industry, the output and stock of motor vehicles have increased, driving economic development and bringing convenience to people's travel. [0003] The wheel hub is an essential part of the car, and its performance is directly related to the smooth running and safety performance of the vehicle. However, the hubs of some wheels currently have the problem of weak impact resistance. [0004] After the aluminum alloy wheels are completed through machining and other key processes, considering the poor conditions of the aluminum alloy wheels in actual use, in order to reduce the oxidation of the aluminum alloy in the air and the loss of the wear of the wheel hub, the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D163/00C09D7/61C09D7/65C09D5/03
CPCC09D167/00C08K2003/2227C08K2003/2241C08L2205/16C09D5/033C09D163/00C08L63/00C08L1/02C08K3/346C08K3/22C08K3/36C08L67/00
Inventor 年君
Owner BENGBU FUWOTE WHEEL MFG TECH
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