Polyurethane elastomer product casting technology

Abstract

The invention provides a polyurethane elastomer product casting technology. The polyurethane elastomer product casting technology is operation completed through cooperation of a connecting plate, twofixtures, an air inlet, an air bag and a buffering hole. By means of the polyurethane elastomer product casting technology, the problems that in an existing mold preparation process, a demolding agentis usually sprayed onto the inner wall of a mold cavity with the help of a spraying gun; because the volume of the spraying gun head is larger, positions with smaller space in the cavity cannot be sprayed by the spraying gun head, and thus the situation that the sprayed surface is not complete is caused; because cavity structures of different molds are different, in the spraying process, staff need to adjust their own spraying action so that the staff can cope with the cavity inner wall in different positions; and in addition, the circumstances of surplus spraying or inadequate spraying can occur in part of the inner wall, and thus the situation that the thickness of the sprayed layer is different is caused can be solved.

Description

technical field [0001] The invention relates to the technical field of polyurethane, in particular to a casting process for polyurethane elastomer products. Background technique [0002] Polyurethane elastomer is a polymer block polymer with more carbamate groups in the main chain. As a polymer material with high strength, tear resistance and wear resistance, it is widely used in daily life. , industrial and agricultural production, medicine and other fields are widely used, often used in aviation, railways, construction, can be used to manufacture plastic products, wear-resistant synthetic rubber products, synthetic fibers, hard and soft foam plastic products, adhesives and coatings, etc., can also be used For the surface coating of various types of wood, chemical equipment, telecommunication equipment and instruments, and various means of transportation, it is necessary to spray the mold release agent on the inner wall of the mold during the pouring process of polyurethane...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a casting process for polyurethane elastomer products, which can solve the problem that in the existing mold preparation process, the release agent is usually sprayed on the inner wall of the mold cavity by means of a spray gun. Due to the large volume of the spray gun head, The spray gun head cannot spray into the small space in the cavity, resulting in incomplete spraying surface. Due to the different cavity structures of different molds, during the spraying process, personnel need to adjust their spraying actions to deal with the inner wall of the cavity in different positions, and Part of the inner wall may be overcoated or undercoated, resulting in problems such as different thicknesses of the sprayed coatings

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