Indirect resistance heating Hot pressing

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figure ii: indirect resistance heating


with indirect resistance heating technology, mold placed in heating chamber. chamber heated graphite heating elements. these elements heated electric current. heat transferred mold convection. electrical energy heats heating elements heat mold in secondary manner, process called indirect resistance heating.


advantages high achievable temperatures, independent conductivity of mold , independent heat , pressure. main disadvantage time takes heat mold. takes relatively long heat transfer take place furnace atmosphere mold surface , subsequently throughout cross-section of mold.








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