On the strength of the aluminium castings specified in Japanese Industrial Standard (JIS) (Part 1):On the mechanical properties of miniature lader parabolic reflector made from Al-7% Si alloy
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概要
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Some experiments on the mechanical properties of miniature lader parabolic reflector made of Al-7% Si casting alloy (AC4C) were performed. AC4C alloy is commonly in use for castings such as the housing or the case, because of its good casting properties and of excellent corrosion resistance. In this case, this alloy was selected with the reason that the reflector consists with many narrow and long ribs and has complicated shapes which require perfect filling with cast metal. Test pieces were taken properly from the casting and tested for the tensile strength, elongation, Brinell hardness and shearing strength. Furthermore discussed by comparing with the properties obtained by standard specimens cast at the same time. As standard specimen, metal mold cast one according to JIS also sand mold one according to the Federal Specification (USA) were tested.Generally speaking, the results showed that the parabolic reflector casting can have nearly the same properties of sand mold standard specimen, if the casting temperature is well controlled, the venting of gases is carefully made and the riser is properly arranged.This study was completed with the fund afforded by Light Metal Edueational Foundation Incorporation for which we are extremely gratefull.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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