High-airtightness heat-insulating container manufacture method and heat-insulating container manufactured according to same

Abstract

The invention discloses a high-airtightness heat-insulating container manufacture method and a heat-insulating container manufactured according to the same. The method includes preparing an auxiliarymember which is formed by stacking and welding of a low-temperature sealing layer and a high-temperature covering layer, wherein the low-temperature sealing layer is made of metal capable of melting at a melting temperature, and the high-temperature covering layer is made of metal incapable of melting at the melting temperature; fastening the auxiliary member at a corner position on the inner sideof a shell of the heat-insulating container. The whole low-temperature sealing layer is sealed between the corner position on the inner side of the shell and the high-temperature covering layer, so that the high-temperature covering layer is tightly attached to the low-temperature sealing layer constantly under the action of gravity, and cracks are avoided; separation between the low-temperaturesealing layer and the high-temperature covering layer during melting can be avoided only by fastening the auxiliary member at the corner position on the inner side of the shell, and edge and shell welding of the high-temperature covering layer is not needed; the auxiliary member arranged internally is not touched directly during collision and is not easy to drop, so that vacuum leakage caused by collision is avoided.

Description

technical field [0001] The invention relates to the field of vacuum thermal insulation containers, in particular to a method for preparing a thermal insulation container with good airtightness and the thermal insulation container prepared therefrom. 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...

AI Technical Summary

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 and poor air tightness

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