Zinc-aluminum alloy surface treatment process

A surface treatment, zinc-aluminum alloy technology, applied in metal material coating process, ion implantation plating, coating and other directions, can solve problems such as high cost and complex process, and achieve easy control, environmental friendliness, and high yield. Effect

Active Publication Date: 2019-07-12
NINGBO RUNNER INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process is relatively complicated and the cost is relatively high

Method used

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  • Zinc-aluminum alloy surface treatment process

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Effect test

Embodiment 1

[0037] This embodiment provides a zinc aluminum alloy surface treatment process, which includes the following steps:

[0038] Step 1: Polish the alloy matrix;

[0039] Step 2: Dewax, degrease, and rust the alloy matrix;

[0040] Step 3: Multi-step vacuum coating on the alloy substrate, as follows:

[0041] (1) Transfer the cleaned workpiece into a vacuum furnace, and evacuate the vacuum furnace to the body vacuum, the vacuum degree is 7.0×10-3Pa, then argon gas is introduced, and the bias is turned on when the vacuum degree reaches 1.0Pa~2.0Pa The piezoelectric power supply performs glow cleaning on the surface of the workpiece. The process parameters adopted are: the bias voltage is 1000V, the duty cycle is 60%, and the current is 3.0A;

[0042] (2) Use magnetron sputtering to deposit the transition layer: evacuate the vacuum furnace to the body vacuum, and then pass in argon to make the vacuum reach 0.4Pa, and then use intermediate frequency magnetron sputtering to deposit the first ...

Embodiment 2

[0048] This embodiment provides a zinc aluminum alloy surface treatment process, which includes the following steps:

[0049] Step 1: Polish the alloy matrix;

[0050] Step 2: Dewax, degrease, and rust the alloy matrix;

[0051] Step 3: Multi-step vacuum coating on the alloy substrate, as follows:

[0052] (1) Transfer the cleaned workpiece into a vacuum furnace, evacuate the vacuum furnace to the body vacuum, the vacuum degree is 8.0×10-3Pa, and then pass in argon gas, turn on the bias power supply when the vacuum degree reaches 1.0Pa Glow cleaning on the surface of the workpiece, the process parameters adopted are: the bias voltage is 500V, the duty cycle is 60%, and the current is 2.0A;

[0053] (2) Use magnetron sputtering to deposit the transition layer: evacuate the vacuum furnace to the body vacuum, and then pass in argon to make the vacuum reach 0.35Pa, and then use intermediate frequency magnetron sputtering to deposit the first metal chromium layer, deposition time For 5min,...

Embodiment 3

[0059] This embodiment provides a zinc aluminum alloy surface treatment process, which includes the following steps:

[0060] Step 1: Polish the alloy matrix;

[0061] Step 2: Dewax, degrease, and rust the alloy matrix;

[0062] Step 3: Multi-step vacuum coating on the alloy substrate, as follows:

[0063] (1) Transfer the cleaned workpiece into a vacuum furnace, evacuate the vacuum furnace to the body vacuum, the vacuum degree is 8.0×10-3Pa, then pass in argon gas, turn on the bias power supply when the vacuum degree reaches 1.5Pa Glow cleaning on the surface of the workpiece, the process parameters adopted are: the bias voltage is 500V, the duty cycle is 60%, and the current is 3.0A;

[0064] (2) The transition layer is deposited by magnetron sputtering: the vacuum furnace is evacuated to the main vacuum, and then argon gas is introduced to make the vacuum degree reach 0.45Pa, and then the first metal chromium layer is deposited by medium frequency magnetron sputtering, the depositio...

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Abstract

The invention discloses a zinc-aluminum alloy surface treatment process. The zinc-aluminum alloy surface treatment process comprises the following steps that (1) an alloy base body is polished; (2) surface cleaning is performed on the polished alloy base body; (3) the workpiece subjected to surface cleaning is transferred into a vacuum furnace, air pumping is performed until a vacuum furnace bodyis vacuumed, then glow cleaning or ion source cleaning is performed, then sequentially magnetron sputtering is adopted to deposit a transition layer, and reaction sputtering is adopted to deposit a color decoration layer; (4) the workpiece is transferred into an oven or a powder spraying line for heating and heat preservation; and (5) thermosetting transparent powder is arranged on the surface ofthe workpiece in an electrostatic spraying mode, and curing treatment is performed to form a surface decoration coating. According to the zinc-aluminum alloy surface treatment process, vacuum coatingand powder spraying are combined, thermosetting transparent powder electrostatic spraying is performed on the high-temperature base body, so that good appearance decoration and performance are achieved on the surface of the alloy base body, meanwhile, the process is easy to control, the production process is stable, the yield is high, and the requirements of no wastewater discharge can be met.

Description

Technical field [0001] The invention relates to the technical field of surface treatment, in particular to a zinc-aluminum alloy surface treatment process. Background technique [0002] As the country improves the control of electroplating pollution and the people's awareness of environmental protection, the traditional water electroplating industry is currently facing reorganization and technological innovation. At the same time, some new environmentally friendly surface treatment technologies are developing rapidly, and the products have been able to achieve the same or even excellent performance effects as traditional water plating. [0003] Thermosetting powder has good functionality and decoration, and at the same time has good adhesion, generally does not require primer, and is favored by manufacturers and consumers. However, thermosetting powders generally have a higher curing temperature, usually above 140°C, and some relatively low ones are also above 100°C. As the curing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/16C23C14/35C23C14/58C23C14/02
CPCC23C14/35C23C14/165C23C14/0036C23C14/0057C23C14/58C23C14/022
Inventor 卢小伟王飞王应泉
Owner NINGBO RUNNER INDAL CORP
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