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Metal Casting Technologies : September 2006
WHO'S WHO OF METALS -- ANNUAL 2006/7 59 Pacific Rim Foundry Services Pacific Rim Safety Products Pacific Rim Foundry Equipment Tel: 61 2 9639 6677 Fax: 61 2 9639 6560 Mobile 0419 433 238 Email: email@example.com PACIFIC RIM FOUNDRY SERVICES Exclusive Representative for Mancuso Chemicals (Canada) in Australia and Southeast Asia Chemical Binder Systems State of the Art Technology at Competitive Prices Furane Resins and Catalysts Phenolic Urethane No-Bake Binders Phenolic Urethane Cold-Box Binders Photo courtesy of John Heine & Son Foundry PACIFIC RIM SAFETY PRODUCTS Marketing safety products from: Paramount Safety, Elliott Australia, Protective Industrial Products, Defender Safety Safety Equipment Leather Gloves, Cotton Gloves, Terry Cord Gloves, Welding Gloves & Aprons, Ear plugs, Safety Glasses, Respiratory Masks, Furnace Clothing, High Visibility Clothing, Disposable Overalls, Work Jackets PACIFIC RIM FOUNDRY EQUIPMENT Buying and Selling Second Hand Foundry Equipment Foundry Equipment Asset Liquidations photograph was taken. Two bimetallic castings were produced by centrifugal casting process -- with and without delay of second metal. After cutting on a power saw the casting was machined on lathe machine for facing operation and its photograph was taken. From the figure it can be seen that a true bond was formed when the second metal was poured on right time. In the case of delay in pouring of second metal a good sound bond was not produced. This can be seen from small air gap between the two interfaces. The second case couldn't produce a good composite casting due to improper bonding. Centrifugal casting shows the segregation of graphite particles in the inner periphery. The hardness value at the outer periphery was 19 BHN and that at inner was reduced to 16. This is due to the segregated graphite in inner periphery. It is a functional graded casting. Such castings can be used for bearing applications as graphite acts as a solid lubricant. If heavier particles of zircon have been used, they would have been thrown to outer periphery of the casting as the density of zircon is higher than that of aluminium. Such castings can be used for wear applications as zircon is a hard abrasive reinforcement. From the results it was seen that hardness values were more on outside edge compared to bore. There is bit reduction in hardness values with increase in speed. Coating Fluidity lingth, In. No Coating 7.8 Carbon 13 Ceramic 9.5