One-step forming and blistering process for the bottom plate of a refrigerator compressor box

Abstract

The invention discloses a one-time forming blister packing technology for a refrigerator compressor casing base plate. The technology comprises the following steps that mixing and extrusion molding are conducted on a flame-retardant material through a screw extruder, and hard sheets are obtained; plastic sheets are heated to 55 DEG C through a heating box and then cooled to 10 DEG C through nitrogen after heat preservation is conducted for 2 minutes, and then atomized ethanol is sprayed to the surfaces of the sheets, so that the humidity of the surfaces of the sheets is uniform; the sheets are heated to 55 DEG C again, and then blister packing is conducted on the sheets to obtain the refrigerator compressor casing base plate. According to the technology, the preparation process is easy and convenient to operate, and the plasticity of the sheets can be improved; the flame-retardant level of the flame-retardant material can reach the 5A level, the material can release chlorine to hinder the material from being continuously burnt even if the material is burnt, the thermal shock resistance of the material is very excellent, and the tenacity still does not change at minus 10 DEG C or below; in addition, the impact resistance of the material is extremely stable, the hot melting property is stable, and the good insulating property is achieved.

Description

technical field [0001] The invention relates to the technical field of plastic absorption of flame retardant materials, in particular to a one-time forming plastic absorption process for the bottom plate of a refrigerator compressor box. Background technique [0002] At present, the back panel and the bottom plate of the compressor box used in traditional refrigerators are usually stamped and formed by galvanized iron plates, and the galvanized sheets are glued together by adhesive tape to form the bottom plate of the box. The materials used are expensive, the cost of the mold is large, and the quality is heavy. 1. The processing technology is complicated, and it is easy to produce foam leakage at the edge of the gap when the box is foamed. In the prior art, there are also plastic plates made of flame-retardant plastics, and the plastic plates are thermally welded to form the bottom plate of the box body. However, there are still gaps at the corners where the plastic plates ...

AI Technical Summary

Problems solved by technology

[0002] At present, the back panel and the bottom plate of the compressor box used in traditional refrigerators are usually stamped and formed by galvanized iron plates, and the galvanized sheets are glued together by adhesive tape to form the bottom plate of the box. The materials used are expensive, the cost of the mold is large, and the quality is heavy. , The processing technology is complicated, and it is easy to produce foam leakage at the edge of the gap when the box is foamed

In the prior art, there are also plastic plates made of flame-retardant plastics, and the plastic plates are thermally welded to form the bottom plate of the box body. However, there are still gaps at the corners where the plastic plates are connected, and bubble leakage will also occur when the box body is foamed.

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