What is the difference between the production process of ferrous powder metallurgy and cemented carbide?
After the Second World War, the rapid development of powder metallurgy technology, new production technology and technical equipment, new materials and products continue to emerge, develop some special materials manufacturing field, has become an important part in modern industry.
In 1890, the invention of tungsten powder, made by powder metallurgy, in the United States, laid the foundation of modern powder metallurgy. Around 1910, it has been made by powder metallurgy method of tungsten and molybdenum products, hard alloy, bronze bearings, porous filters, brush set, and gradually formed a complete set of powder metallurgy technology. In 1930s, after the advent of the vortex grinding iron powder and the carbon reduced iron powder, the iron based mechanical parts made by powder metallurgy have gained rapid development.
Powder metallurgy, powder metallurgy, has been in fact a long time ago. In early times, powders of gold, silver, copper and bronze were obtained by mechanical comminution and used as decorative coatings for pottery. In the second half of the eighteenth Century and the first half of nineteenth Century, countries such as Russia, England and Spain made sponge platinum particles from factories, and manufactured coins and valuable objects by hot pressing, forging and pressing, sintering and other processes.
