KR940023426A

KR940023426A - Manufacturing method of inner body of electric insulation rice cooker for IH

Info

Publication number: KR940023426A
Application number: KR1019930006262A
Authority: KR
Inventors: 한우석
Original assignee: 이상협; 한일가전 주식회사
Priority date: 1993-04-15
Filing date: 1993-04-15
Publication date: 1994-11-17

Abstract

본 발명은 자기유도가열(INDUCTION HEATING)방식인 일명 IH용 전기보온밥솥의 내통체 제조방법에 관한 발명으로서, 종래의 스테인레스강판에 불소수지를 코팅하거나 또는 스테인레스강판과 알루미늄합금속의 이중금속을 강제 접합하여 내통체를 형성하고 이들의 내측면으로 밥눌음방지용의 불소수지를 코팅접착처리한 것이 있으나, 전자의 경우 스테인레스강판에는 불소수지 코팅 접착력 및 내구성이 약하거나 후자의 경우 물성이 각기 다른 두 금속을 접합하기가 용이하지 않아 가공시 고정불량이 많이 발생할 뿐 아니라, 이는 고도의 기술을 요하는 부분으로 가공비가 많이 소요되고 또한 원자재가 많이 요구되는 것이어서 저렴한 가격으로 양질의 제품을 제공하지 못하는 문제점이 있었던 것으로서, 본 발명은 이러한 점에 착안하여 내통체를 스테인레스강만을 이용하고 이에 요철면을 형성한 다음, 요철면에 세라믹파우더를 고온의 노즐을 이용 분사 압착시키는 방법으로 하여 줌으로써 종전의 코팅방법에 비해 고도의 기술이 요구되지 않으면서도 간편하게 내통체를 형성할 수 있어 원자재 절감은 물론 양질의 제품을 저렴한 가격으로 다량생산할 수 있는 효과를 지닌 내통체 제조방법에 관한 것이다.The present invention relates to a method for manufacturing the inner cylinder of the electric insulation rice cooker for IH, which is an induction heating method, which is a conventional stainless steel plate coated with a fluorine resin or a forced joining of a double metal of a stainless steel plate and an aluminum alloy metal. In this case, fluorine resin for preventing rice crushing is coated on the inner surface of the inner tube. However, in the former case, two metals with different fluorine resin coating adhesive strength and durability in the stainless steel sheet or in the latter case have different physical properties. Not only is it difficult to join, it causes not only a lot of fixed defects during processing, but it also requires a high level of technology, which requires a lot of processing costs and requires a lot of raw materials. As the present invention focuses on this, the inner cylinder is stained. By using only steel and forming an uneven surface, and then spraying and pressing ceramic powder on the uneven surface by using a high temperature nozzle, an inner cylinder can be easily formed without requiring a high level of technology compared with the conventional coating method. It is possible to reduce the raw materials as well as to the production method of the inner cylinder having the effect of producing a large amount of high quality products at a low price.

Description

Manufacturing method of inner body of electric insulation rice cooker for IH

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 내통체의 제조과정을 공정별로 구분 도시한 제조공정 과정도, 제2도는 본 발명의 제조공정에 따라 제조된 내통체의 구조를 보인 단면도, 제3도는 제2도의 가부 확대 발췌 단면도이다.1 is a manufacturing process flow chart showing the manufacturing process of the inner cylinder according to the present invention by process, Figure 2 is a cross-sectional view showing the structure of the inner cylinder manufactured according to the manufacturing process of the present invention, Figure 3 is An enlarged excerpt cross section.

Claims

In manufacturing the inner cylinder (A) applied to the electric insulation rice cooker for IH by processing a stainless steel sheet, to form the inner shell (10) of the inner cylinder shape and to wash it by ultrasonic to remove the oil and dirt on the outer surface The second step for forming the uneven surface 20 by sending to the inner surface of the outer shell 10 completed by the first step and the first step and the outer shell 10 of the second step completed. The outer surface of the ceramic powder (CERAMIC POWDER) is sprayed and welded about 60 ~ U-100U at high pressure through the high temperature nozzle to form the ceramic layer 30 on the uneven surface 20. 10) the fourth step of sintering the fluorine resin into the ceramic layer 30 of the double and firing it for 15 to 25 minutes at a temperature of about 400 ℃ to 420 ℃, IH electric insulation rice cooker Method of manufacturing inner cylinder.

※ Note: The disclosure is based on the initial application.