36results about How to "Avoid problems such as surface black spots" patented technology

The invention discloses a surgical intracardiac blood pump which comprises a pump and an impeller. The impeller is arranged in the pump, the pump comprises a cast titanium alloy pump, a zirconium oxide ceramic material layer and a titanium carbide ceramic material layer, the zirconium oxide ceramic material layer is arranged on the outer surface of the pump, and the titanium carbide ceramic material layer is arranged on the inner surface of the pump. The surgical intracardiac blood pump has the advantages that titanium alloy contains simple components; the surgical intracardiac blood pump is high in strength; the titanium alloy with the components is subjected to acid pickling and passivating surface treatment working procedures, accordingly, optional problems of dark spots on surfaces and the like can be solved, and obtained surfaces are neat; titanium nitride ceramic material layers are coated on the surfaces of the impeller according to different types of somatic cells in contact with the impeller and different speeds of the impeller, and accordingly the material and blood compatibility can be improved.

The invention provides a manufacturing method of an automobile gearbox. The gearbox comprises an upper box body and a lower box body. The upper box body and the lower box body are connected to form a gearbox cavity. The inner surface of the upper box body is coated with an aluminum-oxide-system ceramic material layer. The inner surface of the lower box body is coated with a zirconia-system ceramic material layer. The outer surfaces of the upper box body and the lower box body are coated with organic silicon coatings. Because the inner surface of the lower box body can more easily make contact with gearbox oil than the inner surface of the upper box body, the inner surface of the lower box body and the inner surface of the upper box body are coated with the different coatings; and in this way, the corrosion resistance is improved. The organic coatings are formed on the outer surfaces of the box bodies, so that the weather-proof performance and the stain-resistant performance are effectively improved.

A gearbox for an automobile comprises a lower box body and an upper box body, wherein the lower box body and the upper box body are connected to form a gearbox cavity, the inner surface of the upper box body is coated with an aluminum oxide series ceramic material layer, the inner surface of the lower box body is coated with a zirconium oxide series ceramic material layer, and the outer surface of the upper box body and the outer surface of the lower box body are coated with organic silicon coatings. Due to the fact that the inner surface of the lower box body makes contact with gearbox oil more easily than the inner surface of the upper box body, differentiated coating is conducted on the inner surface of the lower box body and the inner surface of the upper box body, corrosion resistance is improved, and the organic coatings are formed on the outer surfaces of the box bodies to effectively improve weather resistance and staining resistance.

A gearbox of a motor vehicle comprises a lower gearbox body and an upper gearbox body, and the lower gearbox body and the upper gearbox body are connected to form a gearbox cavity; a transmission shaft and a gear are arranged in the gearbox cavity, and the gear comprises a gear body and a tungsten carbide coating on the surface of the gear boxy; the inner surface of the upper gearbox body is coated with an aluminum oxide series ceramic material layer, and the inner surface of the lower gearbox body is coated with a titanium carbide series ceramic material layer; and the outer surface of the upper gearbox body and the outer surface of the lower gearbox body are coated with heat-resisting coatings, and aluminum alloy is simple in element; organic coatings are formed on the outer surfaces of the upper gearbox body and the lower gearbox body, weather-proof anti-pollution performance is effectively improved, and the outer surface of the gear is coated with the tungsten carbide coating, so that the wear resisting of the gear is improved.

An acid-resisting and alkali-resisting industrial pump comprises a pump body and an impeller installed inside the pump body. The pump body comprises an aluminum alloy pump body and a tungsten carbide serial ceramic material layer arranged on the outer surface of the pump body and a boron oxide serial ceramic material layer arranged on the inner surface of the pump body, and the impeller comprises a nickel-based alloy impeller body and a zirconium oxide serial ceramic material layer arranged outside the impeller body; components of the aluminum alloy and the nickel alloy are simple, and strength requirements of the acid-resisting and alkali-resisting industrial pump can be achieved; surface treatment processes of acid pickling and passivating are conducted on the aluminum alloy and the nickel alloy with the components, the problem that black spots exist on any surface and other problems are avoided, and the surface cleanliness is achieved.