Tungsten powder is blended with carbon (lampblack) and converted to tungsten carbide usually in induction furnaces at temperatures from 1300 to 1500° C (2400 to 2800° F). The sintering operations can be conducted in either resistance or induction type furnaces of stainless steel construction and water cooled.
Vacuum Furnace for Tungsten Carbide scrape recycling furnace /sintering furnace Description PT-V series vacuum furnace is widely used for heat treatment of metal materials in high vacuum,recursive,protective atmosphere,also used for heat treatment of special materials,such as carbonation process of carbon products development.
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Heat recovery of waste heat in steel making industry using chemical endothermic reaction N.Maruoka··· 733; Characterization of the briquette prepared from electric arc furnace dust blended with quicklime (Development of the collecting dust recycling process on electric arc furnace-1) S.Kimura··· 734
Sintering Furnace, Graphitization Furnace, Vacuum Furnace manufacturer / supplier in China, offering Graphene Electrothermal Film Induction Vacuum Graphitization Furnace, Tungsten Scrap Recycling 2200c Heat Treatment Vacuum Sintering Furnace, Tungsten Carbide Scrap Sintering 2200c Heat Treatment Vacuum Sintering Furnace and so on.
This is a tungsten carbide production facility where raw tungsten carbide is mixed with approximately 6-15% of cobalt binder in vertical production mixers. Heptane is added to the mixer to create liquid slurry. The slurry goes through a mixing and drying process before they are formed to the shape of desired products.
Compared with the rate of postconsumer scrap recycling for tungsten, tantalum only amounts to 17.5%. The main sources, therefore, are sputter targets (semiconductor industry) and Ta-containing superalloys (turbine blades, etc.). The prime reason, which prevents from reaching higher recycling rates, is the tantalum capacitors.
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Effects of moulding sand permeabilities prepared from the combinations of four proportions of coarse and fine particle size mixtures and pouring temperatures varied from 700, 750, and 800 (±10°C) were studied on the hardness, porosity, strength, and microstructure of cast aluminium pistons used in hydraulic brake master cylinder.
The vacuum level during sintering is usually about 0.1 Pa (10 3 torr), but special furnaces known as sinterHIPs can backfill the furnace with argon to a pressure of up to 7 MPa while the matrix is still molten to ensure the parts are fully densified. The use of sinterHIPs has become increasingly common to virtually eliminate scrap due to
Deep cryogenic heat treatment eliminate retained austenite and improve carbide distribution and percentage. Ball milling, spray drying, heat treatment, plasma spraying. Get Price. Int. Journal of Refractory Metals & Hd Materials - Powder tungsten carbide materials is to control the rapid grain growth during the early stage of sintering.