Corrosion resistance handling method for aluminum alloy workpieces with pipes

A processing method and technology of aluminum alloy, applied in pipeline anti-corrosion/anti-rust protection, pipeline protection, surface pretreatment, etc., can solve the problems of inability to mass-produce, low production efficiency and high energy consumption, so as to improve production efficiency and improve The effect of productivity and energy reduction

Active Publication Date: 2014-05-28
WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD
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Problems solved by technology

[0007] 3. This method has high energy consumption, low pr

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[0020] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] The embodiment of the present invention provides a method for anti-corrosion treatment of aluminum alloy parts with pipes, comprising the following steps: coating the inner wall of the pipe of the aluminum alloy parts with an anti-corrosion material, and after the anti-corrosion material is dried, the aluminum alloy parts are treated Sintering and cooling. The anti-corrosion material is liquid or emulsion before sintering. After sintering, the anti-corrosion material can be coated on the inner wall of the pipeline to form a hard coating. In this way, the anti-corrosion material can be used to form a uniform coating ...

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Abstract

The invention belongs to the technical field of a corrosion resistance treatment for aluminum alloy workpieces, and particularly relates to a corrosion resistance handling method for aluminum alloy workpieces with pipes. The corrosion resistance handling method includes: coating an anti-corrosion material on the inner wall of the pipe of the aluminum alloy workpiece, sintering the aluminum alloy workpiece when the anti-corrosion material is dry, and then cooling. By means of forming a uniform coating material on the inner wall of the pipe via the anti-corrosion material, a corroding mechanism formed by active metallic aluminum and chloride ions as well as water is stopped, so that the corrosion resistance handling method can reach a good corrosion resistance effect and can fundamentally prevent the metallic aluminum from contacting with the chloride ions and the water; furthermore, the anti-corrosion material is resistant to corrosion of the chloride ions and the water, so that the corrosion resistance handling method is high in reliability, and service life of the aluminum alloy workpieces is prolonged. Long-term high-temperature high-pressure sintering to the aluminum alloy workpieces is not required, so that energy consumption and cost are reduced, working efficiency and productivity are improved, and requirements on large-scale production can be well met.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion treatment of aluminum alloy parts, in particular to a method for anti-corrosion treatment of aluminum alloy parts with pipes. Background technique [0002] At present, the heat exchangers of gas water heaters are made of precious metal red copper. Due to the digestion of copper resources, the price of copper materials has soared rapidly. Moreover, my country is a country with scarce copper resources and rich aluminum resources. In household appliances, aluminum materials are used to replace copper materials. Application technology development has become an inevitable trend for enterprises to reduce costs. [0003] Since aluminum is a highly active amphoteric substance, and tap water contains harmful substances such as chloride ions, when domestic water passes through the aluminum alloy heat exchanger of the gas water heater, the water acts as a medium between aluminum and chloride ions to ma...

Claims

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Application Information

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IPC IPC(8): F16L58/02F16L58/10B05D7/22B05D3/00B05D3/02F28F19/02
CPCB05D3/002B05D3/0272B05D7/222F16L58/02F16L58/1027F28F19/02
Inventor 晏勇
Owner WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD
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