Preparation method of durable heat preservation container and heat preservation container prepared by using same

Abstract

The invention discloses a preparation method of a durable heat preservation container and the heat preservation container prepared by using the same. The preparation method comprises the following steps that A, an auxiliary part is prepared, wherein the auxiliary part is formed by stacking and mutually welding a low-temperature sealing layer and a high-temperature covering layer; and B, the auxiliary part is fixed on the outer side of a shell of the heat preservation container, the low-temperature sealing layer faces the shell, and the edge of the high-temperature covering layer is fixed to the shell, so that the low-temperature sealing layer is sealed between the high-temperature covering layer and the shell. Exhaust holes are formed in the shell and the high-temperature covering layer, the phase change of the low-temperature sealing layer can seal the two exhaust holes, the complete vacuum sealing effect can be achieved if any one of the two exhaust holes is sealed, the vacuum leakage probability of the heat preservation container is greatly reduced, the rate of finished products is higher, and the products are more durable.

Description

technical field [0001] The invention relates to the field of vacuum heat preservation containers, in particular to a method for preparing a durable heat preservation container and the prepared heat preservation container. Background technique [0002] The existing tailless vacuum insulation container manufacturing method is to use glass glue to seal the cavity outside the container body at the bottom of the container body. However, because the container body is made of metal, and glass glue is a non-metallic material, glass glue and glass glue are non-metallic materials. The degree of fusion and adhesion of the main body of the container is not good, and the glass glue is easy to crack due to high temperature or vibration. The service life of the insulated container is greatly shortened. If the glass glue is replaced by a low-temperature metal material, the low-temperature metal material is easily oxidized during vacuum heating to generate cracks and gaps, resulting in air ...

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Problems solved by technology

[0002] The existing tailless vacuum insulated container manufacturing method is to use glass glue to seal the cavity outside the container body at the bottom of the container body. However, because the container body is made of metal, and the glass glue is a non-metallic material, the glass glue and the glass glue are non-metallic materials. The degree of fusion and adhesion of the main body of the container is not good, and the glass glue is easy to crack due to high temperature or vibration. The service life of the insulated container is greatly shortened

If the glass glue is replaced with a low-temperature metal material, the low-temperature metal material is easy to oxidize and produce cracks and gaps during vacuum heating, resulting in air leakage, poor air tightness, and not durable

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