It is an alloy wheel for a motorcycle having "Ring Riser" and flow-offs. The alloy is A356.2, (refer Table-1) and yield is about 50%. For better understanding, refer to Fig. 1. The gross weight is 9.1 kg, after cutting the riser; net weight is 4.6 kg, pouring was directly through the central sprue. Metal temperature was 690 to 700℃ and mould temperature was between 300 to 400℃. Metal was melted in a gas-fired crucible type tilting furnace, further treated and dispensed through an electric resistance type holding furnace. Rotary Nitrogen degasser was used for degassing, and conventional powder fluxes along with metallic grain refiner and modifier were used for metal treatment. The production target for foundry was 400 sets per day. But due to the problem stated below, they were not able to produce a single wheel and the plant was shut for over 6 months.
展开▼
机译：它是一种用于摩托车的合金轮，具有“ Ring Riser”和流道。合金为A356.2（参见表1），产率约为50％。为了更好地理解，请参见图1。切下立管后，毛重为9.1 kg;净重为4.6公斤，直接通过中央浇口浇注。金属温度为690至700℃，模具温度为300至400℃。金属在燃气坩埚式倾斜炉中熔化，进一步处理并通过电阻式保持炉分配。使用旋转氮气脱气机进行脱气，并使用常规粉末助熔剂以及金属晶粒细化剂和改性剂进行金属处理。铸造厂的生产目标是每天400套。但是由于以下问题，他们无法生产单个砂轮，并且工厂关闭了6个月以上。
展开▼
