Surface hardening treatment process for aluminum alloy tableware

A hardening, aluminum alloy technology, applied in anodizing and other directions, can solve the problems of surface scratches, and achieve the effect of improving surface hardness, thickness, and not easy surface scratching

Inactive Publication Date: 2017-02-15
SAN NENG BAKE WARE WUXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the surface hardness of aluminum alloy hard oxidized tableware is generally around HV400, and the thickness is relatively thin, only about 50 μm. When scraping food with metal knives, it is relatively easy to cause surface scratches

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A surface hardening treatment process for aluminum alloy tableware comprises the following steps:

[0013] A, add sulfuric acid in purified water and stir, form the anodic oxidation solution that contains 160g sulfuric acid in every liter of purified water;

[0014] b. Pour the prepared anodizing solution into the anodizing tank, and control the temperature of the anodizing solution at -2°C;

[0015] c. Put 5 aluminum alloy tableware semi-finished products into the anodizing tank. The total surface of the 5 aluminum alloy tableware semi-finished products is 15 square decimeters. Connect the anodizing tank to the working power supply. The working current of the working power supply is 45A, per square meter The total surface area of ​​decimeter aluminum alloy tableware semi-finished products corresponds to the working current of 3A, and the anodizing time is controlled at 70 minutes;

[0016] d, the anodizing time is over, and the aluminum alloy tableware is obtained.

...

Embodiment 2

[0019] A surface hardening treatment process for aluminum alloy tableware comprises the following steps:

[0020] A, add sulfuric acid in purified water and stir, form the anodizing solution that contains 180g sulfuric acid in every liter of purified water;

[0021] b. Pour the prepared anodizing solution into the anodizing tank, and control the temperature of the anodizing solution at -3°C;

[0022] c. Put 5 aluminum alloy tableware semi-finished products into the anodizing tank. The total surface of the 5 aluminum alloy tableware semi-finished products is 15 square decimeters. Connect the anodizing tank to the working power supply. The working current of the working power supply is 60A, per square meter The total surface area of ​​decimeter aluminum alloy tableware semi-finished products corresponds to the working current of 4A, and the anodizing time is controlled at 75 minutes;

[0023] d, the anodizing time is over, and the aluminum alloy tableware is obtained.

[0024]...

Embodiment 3

[0026] A surface hardening treatment process for aluminum alloy tableware comprises the following steps:

[0027] A, add sulfuric acid in purified water and stir evenly, form the anodizing solution that contains 170g sulfuric acid in every liter of purified water;

[0028] b. Pour the prepared anodizing solution into the anodizing tank, and control the temperature of the anodizing solution at -3°C;

[0029] c. Put 5 aluminum alloy tableware semi-finished products into the anodizing tank. The total surface of the 5 aluminum alloy tableware semi-finished products is 15 square decimeters. Connect the anodizing tank to the working power supply. The working current of the working power supply is 54A, per square meter The total surface area of ​​decimeter aluminum alloy tableware semi-finished products corresponds to the working current of 3.6A, and the anodizing time is controlled at 72 minutes;

[0030] d, the anodizing time is over, and the aluminum alloy tableware is obtained. ...

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Abstract

The invention relates to a surface hardening treatment process for aluminum alloy tableware. The surface hardening treatment process comprises the following steps of a, adding sulfur acid into purified water, and uniformly stirring to form an anodic oxidation solution containing 160 g-180 g of sulfur acid in every one liter of purified water; pouring the prepared anodic oxidation solution into an anodic oxidation tank, and controlling the temperature of the anodic oxidation solution at -2 DEG C--3 DEG C; placing a semi-finished product of the aluminum alloy tableware into the anodic oxidation tank, switching on a working power supply for the anodic oxidation tank, correspondingly connecting 3 A -4 A working current to every one square decimeter of total surface area of the semi-finished product of the aluminum alloy tableware, and controlling the anodic oxidation time to be within 70 min-75 min; and ending the anodic oxidation time to obtain the aluminum alloy tableware. By using the treatment process disclosed by the invention, the surface hardness of the tableware is greatly increased and can be increased to HV500-HV600, the thickness of an oxidation layer is increased, and surface scratch is not likely to be caused during use; and the treatment process disclosed by the invention is simple in step and convenient to operate.

Description

technical field [0001] The invention relates to a treatment process for tableware, in particular to a surface hardening treatment process for aluminum alloy tableware. Background technique [0002] At present, the surface hardness of aluminum alloy hard oxidized tableware is generally around HV400, and the thickness is relatively thin, only about 50 μm. When scraping food with metal knives, it is relatively easy to cause surface scratches. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies in the prior art and provide a surface hardening treatment process for aluminum alloy tableware that can greatly improve the surface hardness of the tableware, has simple process steps and is easy to operate. [0004] According to the technical solution provided by the present invention, the surface hardening treatment process of the aluminum alloy tableware includes the following steps: [0005] a. Add sulfuric acid in purified water ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/08
CPCC25D11/08
Inventor 平军
Owner SAN NENG BAKE WARE WUXI
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