What are the typical applications of supersonic spraying in various industries?

Due to its superior performance, supersonic spraying has been widely used in aerospace (basic standardization of engine compressor blades, bearing sleeves, etc.), steel and metal, petrochemical, papermaking, biomedical and other fields. It is not only used for repairing damaged parts, but also as a new type of equipment.

Application of supersonic spraying:

1. Applications in the Aerospace Field

Aircraft landing gear - generally using hard chrome plating technology. Adopting supersonic flame spraying technology to reduce environmental pollution caused by chrome plating technology, HVOF spray painting NC Co coating is gradually replacing chrome plating technology in developed countries such as the West.. Compared with chrome plating, HVOF technology has higher combined strength and better wear resistance. To improve the high temperature resistance of aircraft engine blades, HVOF spray painted IMCGrAII adhesive bottom layer and plasma sprayed mgrey-Y2O3/ZrO surface composite coating system are commonly used to effectively enhance the heat resistance of the coating.

2. Application of Paper Industry

To maintain good surface roughness, some working rods in the paper industry need to be finely ground every half to four months. The service life of 100um WC Co prepared by HVOF can be extended to 15 months.

3. Application in the field of steel metallurgy

Using HVOF to prepare 10 submerged rod Qum WC Co coatings with a porosity of less than 1%, the sealing treatment on the coating surface can increase the service life of the Qum from 15 days to 45 to 60 days. There are approximately 1000 furnaces on the furnace grate using HVOF at a temperature of 650 ℃. The NiCr-Cr3C2 coating significantly improves the high-temperature wear resistance of radiation, with a service life of up to 24 months. The secondary processing of non-ferrous metals significantly improves the service life of the spray coating.

4. Application in the petrochemical field

Supersonic spraying is widely used in the petrochemical industry as a reinforcing plunger. The metal seat ball valve with a working temperature of 540C and a pressure of up to 14OMPa contains corrosive mortar in the pipeline. The HVOP spray painted WC Co coating NiCr-Cr3C2 coating and FeCrNiMo ball valve greatly improve reliability and service life.