Preparation method of enamel sheet metal parts for oven and oven

Abstract

The invention provides a making method of an enamel sheet metal part for an oven, and the oven. The method comprises the following steps: processing a sheet to form an oven component to obtain an oven sheet metal part blank; carrying out degreasing and antirust treatment on the oven sheet metal part blank to obtain a clean oven sheet metal part blank; spraying the clean oven sheet metal part blank with a base enamel to the thickness of 40-50[mu]m, putting the sprayed oven sheet metal part blank in an enamel sintering furnace, heating to 680DEG C, and sintering for 3-4min to form an enamel bottom layer in order to obtain a semi-finished enamel product; taking out the semi-finished enamel product from the enamel sintering furnace, cooling to room temperature, spraying the enamel layer of the semi-finished enamel product with a cover-coat enamel to the thickness of 40[mu]m, putting the sprayed semi-finished enamel product in the enamel sintering furnace, heating to 700DEG C, and sintering for 3min to obtain an enamel surface layer in order to obtain the finished enamel sheet metal part. The finished enamel sheet metal part is taken out of the enamel sintering furnace, is cooled to room temperature, and is assembled to form the oven.

Description

technical field [0001] The invention belongs to the technical field of enamel technology, and in particular relates to a method for preparing an enamel sheet metal part used in an oven and an oven. Background technique [0002] With the improvement of people's living standards, the interest in pursuing outdoor leisure is getting higher and higher. During holidays, calling friends and friends to barbecue in the wild adds a lot of fun to life, which also brings a lot of demand for ovens. Most of the existing oven sheet metal parts are made of ordinary metal, which is easy to rust after long-term use and affects the appearance. If it is made of high-grade ceramics, the cost of the oven will be increased virtually, and there are also ovens made of enamel sheet metal parts. However, due to the brittleness of enamel, it is easy to crack or even fall off due to external force. Once cracking or falling off occurs, the protection of the internal metal part will be affected. Corrosion...

AI Technical Summary

Problems solved by technology

Most of the existing oven sheet metal parts are made of ordinary metal, which is easy to rust after long-term use and affects the appearance. If it is made of high-grade ceramics, the cost of the oven will be increased virtually, and there are also ovens made of enamel sheet metal parts. However, due to the brittleness of enamel, it is easy to crack or even fall off due to external force. Once cracking or falling off occurs, the protection of the internal metal part will be affected. Corrosion is easy to occur and spread in cracks and falling off, and it is not easy to repair. The above defects restrict The application of enamel on the oven, so it is necessary to propose an improvement