Preparation method of refrigerator freezing air duct and polyurethane foaming material synthetic product

Abstract

The invention discloses a preparation method of a refrigerator freezing air duct and polyurethane foaming material synthetic product. The method is characterized by comprising the following steps thatthe material incoming inspection is conducted on the refrigerator freezing air duct front plate; the foaming mould detection is prepared before production; the refrigerator freezing air duct front plate is fixed and installed on a mould; casting and mould closing is conducted; the mould is opened to prepare a semi-finished product; aging treatment is conducted; repairing treatment is conducted; afalling material is arranged; a product is inspected to obtain a finished product of synthesizing the refrigerator freezing air duct front plate and the polyurethane foaming material. The problems that when the PE heat preservation sponge is stuck at the refrigerator freezing air duct front plate, the part where PE heat preservation sponge stuck needs to be coated with glue for a plurality of times; due to the characteristics of the PE heat preservation sponge, the tail end of the PE heat preservation sponge is stressed to be opened under the subsequent long-term storage and bumpy transportation process, degumming occurs between the PE heat preservation sponge and the refrigerator freezing air duct front plate is solved by the preparation method.

Description

technical field [0001] The invention relates to the field of preparation methods of refrigerator freezing air duct components, in particular to a method for preparing a synthetic product of refrigerator freezing air ducts and polyurethane foaming materials. Background technique [0002] At present, the air-cooled refrigerators in the refrigerator industry realize the refrigeration and freezing functions by using fans to force the air in the refrigerator to perform convective heat exchange, and by setting corresponding air duct components to supply air to each space in the refrigerator to achieve air cooling. The overall cooling of the refrigerator. Most of the refrigeration systems of such air-cooled refrigerators use air duct components to circulate cold air to achieve cooling effects. Matched with the freezing area of ​​this type of air-cooled refrigerator, PE insulation sponge is pasted on the front plate of the refrigerator freezing air duct assembly to reduce the possi...

AI Technical Summary

Problems solved by technology

As a result, after the refrigerator freezer air duct component product is manufactured according to the above process, during the subsequent long-term storage or bumpy transportation, the end of the PE insulation sponge on the product will be easily opened by force, and the PE insulation sponge and the refrigerator freezer air Degumming of the glued part of the front panel

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