Method for manufacturing inner cylinder of electric warming rice cooker for IH

摘要

The present invention relates to a method for manufacturing an inner cylinder of an electrothermal heating rice cooker for IH, which is a magnetic induction heating method, in which a conventional stainless steel sheet is coated with a fluorine resin, or a stainless steel sheet and a double metal in an aluminum alloy are forcedly bonded In the case of the former, the stainless steel sheet is coated with a fluororesin coating, which has a weak adhesive strength and durability, or in the latter case, two metals having different physical properties. It is not easy to join and it causes a lot of fixing defects in processing. Moreover, it requires a high technology and requires a large processing cost and also requires a large amount of raw materials, which makes it impossible to provide high quality products at a low price In view of this point, the present invention is applied to a stain-By using the steel only, forming the uneven surface, and then applying the ceramic powder to the uneven surface by spraying using the high-temperature nozzle, it is possible to easily form the inner cylinder without requiring a high technique compared to the conventional coating method The present invention relates to an inner cylinder manufacturing method having an effect of mass production of high quality products at a low price as well as raw material cost reduction.