France Series Wash Pump,France Series Washer Pump,Washer Fluid Pump,Windshield Water Pump ruian city yixuan auto parts co.,ltd , https://www.yixuanauto.com
In recent years, surface coating technology in China's equipment maintenance has been widely used for a variety of materials, parts and equipment repair. Its working principle is to add molybdenum disulfide, metal powder, ceramic powder and fiber and other special filler adhesive, directly applied to the surface of materials or parts, so that it has a wear-resistant, corrosion and other functions, mainly for surface strengthening and repair . Its process is simple, convenient and flexible, safe and reliable, does not require specialized equipment, just a good glue coated on the surface of the cleaned parts to be cured after curing can often operate at room temperature, will not make the parts Produce thermal equivalent effect and deformation.
Second, sticky coating coating process
Cylindrical sleeve, sleeve end face fit, gear end face or pump housing bore small area uniformity of wear between 0.15-0.50mm, the scratch depth of 0.2mm or more, it is appropriate to use sticky Tu repair process. Adhesion coating coating process: initial cleaning → pre-processing → final cleaning and activation → preparation of repair agent → coating → curing → finishing, cleaning or post-processing.
Although the sticky coating process is relatively simple, but the actual construction requirements are quite strict, just choose a good adhesive, not necessarily able to obtain high viscosity strength. It is necessary to select the right adhesive, but also strictly in accordance with the correct process of adhesive coating the right adhesive, but also strictly in accordance with the correct process method line viscosity coating in order to obtain a satisfactory coating effect.
(A) coating
Repair the surface with a thin coating on the stick repair surface, repeated scratching and parts fully infiltrated, and then evenly coated to the specified size, leaving a finishing allowance. As much as possible in the coating to move in one direction, the reciprocating coating will wrap the air in the gel to form bubbles or pores.
(B) pre-processing fine sand paper into a certain trench mesh, exposing the basic qualities of the substrate.
(C) the final cleaning and activation treatment with acetone or special cleaning agent. Then sandblasting, flame or chemical treatment to improve the surface activity.
(D) trimming, cleaning or post-processing fine boring or with a fine file, fine sandpaper, whetstone will be sticky surface finishing to the required size (E) preparation of the repair agent in use should be strictly in accordance with the provisions of the ratio The agent (A) and the curing agent (B) are mixed thoroughly to make the color consistent, and used up within the specified time, with the use of distribution.
(Six) initial cleaning
Parts surface must not have grease, water, rust, dust and so on. Wash with gasoline, diesel or kerosene first, then acetone.
(G) curing coated with a release agent pressed on the work in the steel, the general room temperature curing takes 24 hours, heating curing (about 80 ℃) takes 2-3 hours.
Gear pump surface repair technology
First, the principle and characteristics of gear pump surface coating