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

The invention provides a blood pump having good anti-hemolysis and anti-thrombosis properties and used in a surgical heart. The blood pump comprises a pump body and an impeller in the pump body, wherein the pump body comprises a casting titanium alloy pump body; the impeller comprises a casting titanium alloy impeller body and a titanium nitride series ceramic material layer outside the impeller body; a titanium carbide series ceramic material layer and a zirconium oxide series ceramic material layer are coated on the inner surface and the outer surface of the pump body according to types of human body cells contacted with the pump body at different speeds, so that the requirements on the anti-hemolysis and anti-thrombosis properties and the like of materials are improved.

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.

An aluminum alloy gearbox casing comprises a lower casing body and an upper casing body connected with the lower casing body. The inner surface of the upper casing body and the inner surface of the lower casing body are coated with zirconium oxide series ceramic material layers, and the outer surface of the upper casing body and the outer surface of the lower casing body are coated with heat-resisting paint. Since the inner surface of the casing makes contact with gearbox oil for a long time, the inner surface of the casing is damaged. The inner surface of the aluminum alloy casing is coated with the zirconium oxide series ceramic material layers, so that corrosion resistance is improved. An organic coating layer is formed on the outer surface of the casing, so that weather-proof performance and anti-fouling performance are effectively 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.

Provided is a medical heart implantation pump body. The pump body comprises a cast titanium alloy pump body, a titanium nitride type ceramic material layer on the outer surface of the pump body and a titanium oxide type ceramic material layer on the inner surface of the pump body. According to different types and speeds of the pump body making contact with human cells, the inner surface and the outer surface of the pump body are coated with the titanium oxide type ceramic material layer and the titanium nitride type ceramic material layer, and properties of hemolysis resistance, antithrombosis and the like of the material are improved.