A zinc-aluminum alloy surface treatment process

A surface treatment, zinc-aluminum alloy technology, applied in metal material coating process, vacuum evaporation coating, 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: 2022-04-29
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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  • A zinc-aluminum alloy surface treatment process

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Comparison scheme
Effect test

Embodiment 1

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

[0038] Step 1, polishing the alloy substrate;

[0039] Step 2: Carry out wax removal, oil removal, and rust removal cleaning on the alloy substrate;

[0040] Step 3. Carry out multi-step vacuum coating on the alloy substrate, as follows:

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

[0042] (2) The transition layer is deposited by magnetron sputtering: the vacuum furnace is evacuated to the vacuum of the body, and then argon gas is introduced to make the v...

Embodiment 2

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

[0049] Step 1, polishing the alloy substrate;

[0050] Step 2: Carry out wax removal, oil removal, and rust removal cleaning on the alloy substrate;

[0051] Step 3. Carry out multi-step vacuum coating on the alloy substrate, as follows:

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

[0053] (2) The transition layer is deposited by magnetron sputtering: the vacuum furnace is evacuated to the vacuum of the body, and then argon is introduced to make the vacuum degree reach 0.35Pa, and then the first me...

Embodiment 3

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

[0060] Step 1, polishing the alloy substrate;

[0061] Step 2: Carry out wax removal, oil removal, and rust removal cleaning on the alloy substrate;

[0062] Step 3. Carry out multi-step vacuum coating on the alloy substrate, as follows:

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

[0064] (2) The transition layer is deposited by magnetron sputtering: the vacuum furnace is evacuated to the vacuum of the body, and then argon gas is introduced to make the vacuum degree reach 0.45Pa, and ...

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Abstract

The invention discloses a zinc-aluminum alloy surface treatment process, which comprises the steps of: (1) polishing the alloy substrate; (2) cleaning the surface of the polished alloy substrate; (3) transferring the surface-cleaned workpiece into In the vacuum furnace, after evacuating to the background vacuum, perform glow cleaning or ion source cleaning, and then sequentially use magnetron sputtering to deposit the transition layer, and use reactive sputtering to deposit the color decoration layer; (4) transfer the workpiece into the oven Or heat and keep warm on the powder spraying line; (5) Electrostatically spray thermosetting transparent powder on the surface of the workpiece, and form a surface decorative coating after curing. The invention combines vacuum coating and powder spraying, and carries out electrostatic spraying of thermosetting transparent powder on the surface of the alloy substrate to achieve good appearance decoration and performance. At the same time, the process is easy to control, the production process is stable, and the yield rate is high. There is no requirement for waste water discharge.

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] With the improvement of the country's control of electroplating pollution and the enhancement of 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 better performance than traditional water electroplating. [0003] Thermosetting powder has good functionality and decoration, as well as good adhesion, and generally does not need primer, which is favored by manufacturers and consumers. However, thermosetting powders generally have a high curing temperature, usually above 140°C, and some relatively low ones are above 100°C. W...

Claims

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Application Information

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Patent Type & Authority Patents(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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