Further analyses the effect of coating production parts of the coating and surface treatment, coating production of spare parts & ndash;
The effect of coating: 1.
Protection: protection of metal, wood, stone and plastic objects such as not being light, rain, dew, hydration medium erosion.
Use paint covering objects is one of the most convenient and reliable protective measures, can protect objects, prolong its service life.
Adornment effect: paint coating can make the object & other;
Put on & throughout;
A beautiful coat, with a glorious, luster and smoothness, beautify the environment and objects create beautiful and comfortable sense.
Special features: after the object on the coating on the special coating, can make the surface with fire prevention, waterproof, anti-fouling, temperature, heat preservation, stealth, conductive, insecticidal, sterilization, luminous, reflective function, etc.
Second, the coating production of spare parts & ndash;
Coating surface treatment: surface treatment is one of the important process of antirust coating.
Engineering machinery antirust coating quality in good or bad depends largely on the surface treatment.
According to Britain's imperial chemical company, coating life controlled by 3 factors: surface treatment (60%), the coating construction accounted for 25%, coating itself quality accounted for 15%.
Construction machinery industry in different parts of surface treatment in a different way.
Mechanical cleaning can effectively remove the rust on the artifacts, welding slag, oxide skin, eliminate the welding stress, increase the adhesion strength of the antirust coating to metal substrate, which greatly improve the quality of engineering machinery parts
Mechanical cleaning standards reach ISO8501 & ndash;
A third of the surface roughness to achieve antirust coating thickness.
Spray, used steel shot blasting to reach GB6484 requirements.
Sheet stamping surface treatment according to the general use of chemical surface treatment.
Process flow is: the artificial pretreatment & rarr;
Hot water washing & rarr;
Skim and rarr;
Skim & rarr;
Industrial washing a & rarr;
Industrial water 2 & rarr;
Surface adjustment & rarr;
Phosphating & rarr;
Industrial water to wash three & rarr;
Industrial washing four & rarr;
Pure water wash & rarr;
Pure water to wash the two & rarr;
Water & rarr;
Dry the above process can also be according to the sheet stamping oil, rust, make appropriate adjustments or without pickling process, degreasing process or not.
And degreasing and phosphating is the key process in chemical process, the two process directly affects the quality of the workpiece chemical processing and the quality of the anticorrosive coating.
About the process parameters and related auxiliary equipment is also the influencing factors of surface treatment quality can not be ignored.
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