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A kind of preparation method of sealing strip

A technology of sealing strips and sealing rings, applied in sealing devices and other directions, can solve the problems of poor cold resistance, elasticity and aging performance, surface pollution of plastic steel doors and windows, complicated processing technology, etc., and achieve excellent high and low temperature resistance and uniform appearance quality. , the effect of feeling good

Active Publication Date: 2016-06-08
TIANJIN ZHONGCAI PROFILES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plasticized PVC sealant strips have the disadvantages of plasticizer migration, poor cold resistance, elasticity and aging performance, and are easy to pollute the surface of plastic-steel doors and windows and have a single color
The processing technology of silicone rubber and modified EPDM rubber sealing strips is relatively complicated, and the installation method is offline manual insertion, which increases labor intensity. When forming a window, it cannot be directly welded, and it needs to be coated with glue to ensure a firm fit.

Method used

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  • A kind of preparation method of sealing strip
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preparation example Construction

[0033] The preparation method of sealing strip of the present invention comprises the following steps,

[0034] 1) According to the material and volume of the sealing ring, snap-in body and reinforcing layer, the raw materials are granulated respectively;

[0035] 2) Put the prepared pellets into the corresponding co-extrusion machine and simultaneously extrude them according to the amount into the mold according to the soft and hard co-extrusion process and shape them with the help of the mold;

[0036] 3) Pull the extruded rubber strip to the cooling water tank through the tractor, and coil and pack it after cooling.

[0037] Among them, during co-extrusion, parameters such as the temperature of each co-extrusion machine and the speed of the host machine can be routinely set according to the size of the extruded rubber strip.

[0038] Such as extrusion equipment can use 35 single-screw extruder, the specific parameters are shown in Table 1

[0039] Table 1

[0040]

[...

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Abstract

The invention discloses a sealing rubber strip. The cross section of the sealing rubber strip comprises an upper sealing ring, a clamping body and a reinforcing layer, wherein the clamping body is fixedly connected with the sealing ring; the reinforcing layer is formed on the lower surface of the clamping body; the sealing ring, the clamping body and the reinforcing layer are integrally formed by co-extrusion. Meanwhile, the invention also discloses a preparation method and components of the sealing rubber strip. The sealing rubber strip is good in sealing performance, high in water resistance, high in elasticity, high in compressive deformation resistance, and excellent in ageing resistance, high temperature resistance and low temperature resistance. The sealing rubber strip is wide in application temperature range of -60 to 150 DEG C and easy to dye; a product with assigned color can be generated according to requirements of a customer and can be completely matched with a high-grade profiled product, so that the freedom of product design is greatly improved. The sealing rubber strip does not need to be glued in the installation process, and firm matching can be realized by direct welding during window formation. Meanwhile, the components are optimized, so that the sealing rubber strip is non-toxic, green, environment-friendly, and recyclable.

Description

technical field [0001] The invention relates to the technical field of building doors and windows, in particular to a sealing strip and a preparation method thereof. Background technique [0002] At present, the door and window sealant strip is installed on the door and window frame, fan and glass, relying on its elastic properties and using the extrusion sealing principle to seal the gap between the profiles, hardware and glass of the door and window, it is a door and window sealing system. key accessories. [0003] Due to the errors in the manufacture of the sealant strips and door and window frames, as well as the temperature difference and the external force of wind and rain, even if the sealant strips are installed, rainwater still enters the room. Plasticized PVC, silicone rubber and modified EPDM rubber are the main sealant strips used in plastic-steel profile doors and windows on the market. The plasticized PVC sealing strip has the disadvantages of plasticizer mig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B7/22C08L101/00C08L21/00
Inventor 刘芳兴王景旺高元杰刘伟
Owner TIANJIN ZHONGCAI PROFILES
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