Polyurethane elastomer product casting technology

A technology for polyurethane elastic and body products, applied in the field of polyurethane, can solve the problems of different thickness of spraying layer and incomplete spraying surface, and achieve the effect of improving uniformity and spraying area.

Active Publication Date: 2019-11-08
山东旭正新材料有限公司
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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 s

Method used

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  • Polyurethane elastomer product casting technology
  • Polyurethane elastomer product casting technology
  • Polyurethane elastomer product casting technology

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Embodiment Construction

[0031] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0032] Such as Figure 1 to Figure 5 Shown, a kind of casting technology of polyurethane elastomer product, it is characterized in that: concrete pouring method is as follows:

[0033] S1. Installation: fix the connecting plate 1 on the mold through the clamp 2;

[0034] S2, mold preparation: inject the release agent from the feed port 47 into the material cavity 45 so as to be absorbed by the sponge ball 43, pressurize the gas into the air cavity 42 to make the air bag 4 gradually expand so as to be in contact with the inside of the mold cavity The surfaces are attached to each ot...

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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...

Claims

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Application Information

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IPC IPC(8): B29C39/02B29C33/58B29K75/00
CPCB29C33/58B29C39/02B29K2075/00
Inventor 张良芹熊芳
Owner 山东旭正新材料有限公司
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