Thermoplastic elastomer composite processing method of color door frame type sealing strips

A thermoplastic elastomer and composite process technology, applied in household components, household appliances, other household appliances, etc., can solve the problems of high cost, pollution, narrow position of the mouth mold, etc., to control production costs, smooth and clean surface, improve The effect of product quality

Inactive Publication Date: 2011-02-16
湖北丰田合成正奥橡塑密封科技有限公司
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Problems solved by technology

Even if the connection part is heat-insulated, it is difficult to debug due to the narrow position of the die; in addition, because the thermoplastic elastomer also undergoes heating and vulcanization by microwaves and hot air with the rubber part, its color is prone to fading, pollution and other changes
This processing method is used in such products both at home and abroad, resulting in large waste and high cost

Method used

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  • Thermoplastic elastomer composite processing method of color door frame type sealing strips

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Embodiment Construction

[0010] combine figure 1 As shown, the present invention is further described as follows:

[0011] The thermoplastic elastomer composite process method of the color door frame type sealing strip, the specific steps are:

[0012] (1). Feeding: feed dense rubber, foam rubber, and metal skeleton 3 into the extruder;

[0013] (2).Rubber extrusion: Preheat the die, apply silicone oil and load it into the machine head; the temperature of the compact rubber extruder is controlled at 45-55°C; the screw speed is 16.2±2rpm, and the pressure is 100-300MPa; The temperature of the foam rubber extruder is controlled at 40-50°C; the screw speed is 14±2rpm, and the pressure is 80-150MPa. Start the extruder to pull the rubber sealing strip backward; the extruded rubber sealing strip is as follows: figure 1 As shown, it is a combination of compact rubber 1, foam rubber 2, and metal skeleton 3;

[0014] (3). Microwave vulcanization: Start the microwave oven for vulcanization, and the temperatu...

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Abstract

The invention provides a thermoplastic elastomer composite processing method of color door frame type sealing strips, comprising the following steps of: (1) material feeding; (2) extrusion of rubber sealing strips through an extruder; (3) microwave vulcanization; (4) hot air vulcanization; (5) arrangement of the vulcanized rubber sealing strips into the extruder, and extrusion of thermoplastic elastomers to cover density rubber; (6) water tank cooling; and (7) material discharge, wherein the cooled section bars are cut with the desired length and then are orderly arranged in a circulating box. The invention separates a thermoplastic elastomer composite working operation and mutually divides two processing techniques of rubber and thermoplastic elastomers. In the invention, the extruded thermoplastic elastomers are cooled only, and the performance of the thermoplastic elastomers depends on the material per se and is not influenced by other working operations, thereby improving the quality of the products and controlling the production cost. The color thermoplastic elastomers are composite and have smooth and clear surfaces, thus the photo-aging and thermal-aging performances are not influenced by heating any more.

Description

technical field [0001] The invention relates to a colored door frame sealing strip, in particular to a thermoplastic elastomer composite process method. Background technique [0002] The door frame sealing strip for automobiles is installed on the sheet metal of the automobile body by the dense rubber part covering the skeleton, and the sponge rubber part seals the closed car door. The interior of the car is mostly beige, light blue, gray, etc., and the traditional sealing strip is black. In order to enhance its appearance, the outer surface of the current door frame sealing strip can be covered with a thin layer of colored materials. Materials include colored rubber and thermoplastic elastomers. Colored rubber is not easy to achieve a variety of color configurations; thermoplastic elastomers have properties close to rubber, are easy to color (adapt to different interior colors), and can be recycled and reused to benefit environmental protection, and gradually occupy a domi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29L31/26B29C47/02
Inventor 黄超李小林
Owner 湖北丰田合成正奥橡塑密封科技有限公司
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