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    Coating pretreatment on all kinds of heat treatment, mechanical processing, transportation and storage process, inevitably will be oxidized, create a layer thickness of oxide layer. At the same time, are also susceptible to various oil pollution and adsorption of some other impurities.
Oil and some of the adsorbate, thin oxide layer can be successively solvent detergent cleaning, chemical processing and mechanical processing, or directly with chemical treatment. For severe oxidation of the metal surface, the oxide layer thicker, can't direct solvent cleaning and chemical treatment, and the best mechanical processing first.

 

     Usually after processing, the metal surface with high activity, again more easily polluted by dust, moisture, etc. To this end, after processing of metal surface should be done as fast as possible to connect.

 

     Coating pretreatment including skim (except oil), derusting, phosphating three parts. Phosphate is the key link, in addition to the oil and rust removal was prepared before phosphating process, so in production practice, both to the phosphating work, as the key, and the requirement of phosphating quality, pays special attention to the oil removal and cleaning work, pay particular attention to the mutual influence between them.

 

      But with the development of the industry, environmental protection and the improvement of working conditions have become the common concern of the people. Therefore, when choosing reagents should consider the need of environmental protection. So jun he shares the coating pretreatment products configuration is simple, strong decontamination, excluding difficult cleaning under normal temperature, normal temperature water easily, do not contain toxic substances, does not produce harmful gases, good working conditions.
  Product Information Model Description  
Compound silane ceramics JH-8001 This product is suitable for pre-treatment of cold-rolled plate, galvanized sheet,aluminum,aluminum alloy,zinc aluminum and steel.
Normal Temperature Zinc Film Forming Agent JH-8031 This product is suitable for pre-treatment of cold-rolled plate, galvanized sheet,aluminum,aluminum alloy,zinc aluminum and steel.
Silane film forming agent JH-8035 This product is suitable for pre-treatment of cold-rolled plate, galvanized sheet,aluminum,aluminum alloy,zinc aluminum and steel.
Zinc manganese metal film forming agent JH-8136 This product is suitable for quality surface treatment requirement in railway locomotives,bearing cylinder liner,piston ring,motorcycle etc.
Normal Temperature Zinc & Nickel Film Forming Agent JH-8132 This product is suitable for pre-treatment of cold-rolled plate, galvanized sheet,aluminum,aluminum alloy,zinc aluminum and steel.
Zinc & Calcium Film Forming Agent JH-8133G This product is suitable for pre-treatment of cold-rolled plate, galvanized sheet,aluminum,aluminum alloy,zinc aluminum and steel.
Iron Film Forming Agent JH-8142 This product is suitable for phosphating treatment of steel and other materials.
Colorized Film Forming Agent for Aluminum parts JH-8246 This product is suitable for various profiles of aluminum, magnesium alloy impregnated, spray passivation treatment.
Essential Color Film Forming Agent for Aluminum Parts JH-8248 This product is suitable for a variety of profiles of aluminum, magnesium alloy parts dipping, spraying passivation.
Chrome-free Film Forming Agent for Aluminum parts JH-8249 This product is suitable for various profiles of aluminum, magnesium alloy impregnated, spray passivation treatment.
Non chromium passivation for Nonferrous Metals JH-8250 This product is suitable for various profiles of aluminum, copper, magnesium passivation of dipping and spray.
Acid Surface conditioning Power JH-8367 This product is suitable for surface treatment of any kinds of ferrous metals,nonferrous metal zinc phosphating,modified zinc.
Weak Alkaline surface conditioning powder JH-8368 This product is suitable for surface treatment of any kinds of ferrous metals,nonferrous metal zinc phosphating,modified zinc.
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