Manufacturing process of enamel heat preservation container

Abstract

The invention discloses a manufacturing process of an enamel heat preservation container. An enamel layer is made on the inner surface of the inner container, and the surface of the enamel layer evenly covers the inner surface of the inner container to form a glazed surface. Therefore, the enamel layer can cover the inner surface of the inner container The welding seam is completely covered, so as to avoid the direct exposure of the welding seam; in addition, the enamel layer can isolate the irritating liquid from the stainless steel material in the inner tank, thereby preventing the irritating liquid from corroding the stainless steel material, thereby avoiding irritation The corrosive liquid makes the stainless steel material precipitate metal components; in addition, the enamel layer can also effectively prevent the heat radiation loss of the liquid inside the enamel heat preservation container, thus playing a good heat preservation effect.

Description

technical field [0001] The invention relates to the field of manufacturing technology of thermal insulation containers, in particular to a manufacturing technology of enamel thermal insulation containers. Background technique [0002] The existing stainless steel heat preservation container, its liner is welded by stainless steel, and is heated and vacuumized at high temperature to achieve heat preservation effect, but the existing stainless steel heat preservation container often has the following disadvantages: [0003] (1) Since the traditional stainless steel heat preservation container is directly welded to the stainless steel sheet by the argon arc welding process, the weld seam will be exposed directly without any protection. Therefore, when the stainless steel heat preservation container is loaded with liquid, especially wine, vinegar, etc. are corrosive Sexual liquids will easily corrode the weld seam, which will cause air leakage in the stainless steel heat preserv...

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Problems solved by technology

[0003] (1) Since the traditional stainless steel heat preservation container is directly welded to the stainless steel sheet by the argon arc welding process, the weld seam will be exposed directly without any protection. Therefore, when the stainless steel heat preservation container is loaded with liquid, especially wine, vinegar, etc. are corrosive Sexual liquids will easily corrode the weld seam, which will cause air leakage in the stainless steel heat preservation container and reduce the heat preservation timeliness;

[0004] (2) When the stainless steel sheet is welded at high temperature to form a stainless steel insulation container, it is easy to precipitate metal components in the process of high temperature melting and crystallization, and when the stainless steel insulation container is loaded with liquid, it is also easily corroded by the liquid, resulting in the precipitation of metal components, resulting in residual Inside the stainless steel heat preservation container, it is easy to affect human health;

[0005] (3) Due to the density limitation of stainless steel itself, there will be a process of degassing, so it is easy to affect the life of the heat preservation container

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