The traditional way to manufacture thermal spray powder

Traditional milling method of spray powder on thermal spraying materials as a whole plays a very important role. Apart from the arc and wire flame spraying, and all other thermal spray techniques are powder-spraying material.Powder material inclusive,adaptable,reliable technology, providing a variety of coating features, mature in high-tech fields, they are incomparable for other material. After years of development and innovation, the chemical composition of various materials have established a rather well-developed milling method: metals, alloys, fluxing alloy spray is often used method,namely water spray-cooled,gas atomized-air cooling and spray-cooling in three ways.

The atomization process has been published since the early sixty's, for thermal spray materials to create a new situation, at the same time when two or more than two kinds of powder in the proportion of similar cases, the hybrid method is a economical and practical means of milling, so far, there are still many manufacturers to supply all kinds of mixed powder. Third. Is a melting sintering after milling process for crushing and screening, it is the main method of manufacturing ceramic or metal ceramics; the fourth is the aggregation method and spray drying method, this method is the production of agglomerated composite powder, including some ceramic powder, such as A12O2-TiO2, ZrO-Y2O, and other common powder, also this method can be used in production. The fifth is pressurized oxygen reduction method,nickel extraction process from a nickel company of Canada, development, evolution of production method for coated composite powder coated metal, Ni, Co or Cu, and the core material can be all kinds of solid materials. The technology is today's hot spraying powder main production methods. Although there are plasma atomization,vapor deposition method, displacement method, thermite method, mechanical melting method, chemical deposition method, co precipitation method, but did not form a scale of production, which causes a thermal spray technologies, but also economic problems.

Sponsor Ads

• Ad Space Available - Rent it Now!

Report this Page

Created on Dec 31st 1969 18:00. Viewed 0 times.

Share on APSense

Comments