Method and equipment for processing coated metallic plate

A technology of processing equipment and processing methods, which can be used in coatings, devices for applying liquid to surfaces, and surface pretreatment, etc., and can solve problems such as increased manufacturing costs, rough product appearance, and complex processes.
CN101462104AInactive Publication Date: 2009-06-24HAIER GRP CORP +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HAIER GRP CORP
Publication Date
2009-06-24
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method for processing a coated metal plate, which comprises the following steps: performing surface chemical treatment on the facade of a substrate; coating a coating on the part outside edge areas of two opposite sides on the surface of a chemical treatment layer; and simultaneously coating a conductive coating on the rear of the substrate. The invention provides the method and a device for processing the coated metal plate, which are used for producing coated metal plates for shells of products such as computer cases subjected to an electromagnetic interference test.
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Description

technical field

[0001] The invention relates to a method for processing a coated metal plate, in particular to a method and equipment for processing a coated metal plate used for an electrical appliance housing that needs to be tested for electromagnetic interference of the whole machine. Background technique

[0002] Traditional coated metal sheets include substrates, which can be made of steel sheets such as cold-rolled sheets, electro-galvanized sheets, hot-dip galvanized sheets, and galvanized sheets. There are chemically treated layers on the front and back of the substrate, and the chemically treated layers The outer layer has a paint protection layer. As the casing of household appliances, this kind of coated metal plate has no pollution to the environment, and is widely used in refrigerator casings, refrigerator side panels, microwave oven casings, air conditioner casings, washing machine casings and other products. However, since the surface of the traditional coat...

Claims

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