Method for carrying out full dry method composite film plating on metal surface
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NINGBO RUNNER INDAL CORP
- Publication Date
- 2012-10-31
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
technical field
[0001] The invention relates to a metal surface treatment method, in particular to a method for performing all-dry composite coating on the metal surface. Background technique
[0002] Traditional water (wet) electroplating on the metal surface can obtain products with high anti-corrosion, high wear resistance, high mirror surface and strong decoration. This kind of metal metallization (plating Cu / Ni / Cr metal film) is widely used and has become popular. Long. However, the water electroplating process has the following recognized disadvantages: (1) It consumes a lot of water and energy, and produces a large amount of wastewater. (2) Use harmful chemical plating solutions and additives. (3) Emission of toxic waste gas. (4) A large amount of metal is consumed. (5) Use of hexavalent chromium which is harmful to the human body. Obviously, this traditional craft is quite harmful to the environment and needs to be improved urgently. Over the years, many resear...