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Sealing strip butt-joint thin slice rubber material and preparation method thereof, and sealing strip butt-joint thin slice rubber sheet processing method and processing device

A processing method and technology of a processing device, which are applied in the field of sealing strip butting sheet rubber and its preparation, can solve the problems of reduced production qualification rate, inconvenient storage, short validity period, etc. Effect

Active Publication Date: 2017-05-03
BAODING WEIYI AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method of butt jointing of rubber sheets is to use unvulcanized rubber to roll into rubber sheets on an open mill, and use scissors to cut square sheets with suitable length and width for jointing. The disadvantage of this method is that the roll distance of the open mill is not easy to control, so batch The thickness of the sheets cannot be accurately controlled between times, and because the rubber sheets need to be placed on a large hanger to prevent the sheets from sticking after rolling out, it is inconvenient to store, and the surface of the sheets is easily dirty due to long-term exposure to the air, resulting in joint strength. Reduced production pass rate, short shelf life of flakes, etc.
In order to solve the problem that the thickness of the sheet cannot be accurately controlled, an extrusion process can be used to obtain a sheet with a fixed thickness, but the sheet prepared by the existing rubber material through the extrusion process has a short validity period of only a few hours, which cannot meet the docking requirements The problem

Method used

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  • Sealing strip butt-joint thin slice rubber material and preparation method thereof, and sealing strip butt-joint thin slice rubber sheet processing method and processing device
  • Sealing strip butt-joint thin slice rubber material and preparation method thereof, and sealing strip butt-joint thin slice rubber sheet processing method and processing device
  • Sealing strip butt-joint thin slice rubber material and preparation method thereof, and sealing strip butt-joint thin slice rubber sheet processing method and processing device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment relates to a sealing strip butt joint sheet compound and its preparation.

[0043] The raw material components and proportions shown in the following table are used to prepare the sealing strip butt joint sheet compound:

[0044]

[0045]

[0046] Explanation: "EPDM K6950C" in the above table indicates the use of EPDM rubber 6950C produced by LANXESS, Germany; "accelerator BZ-75" indicates the use of accelerator BZ with a mass content of 75% active ingredients , "-75" after other accelerators has the same meaning; "sulfur-80" indicates the use of sulfur with an active ingredient mass content of 80%.

[0047] According to the ratio of the raw material components in the above table, adopt the traditional rubber one-step mixing process to prepare the sealing strip butt joint sheet rubber. Concrete preparation steps are as follows:

[0048] First put the raw material components EPDM rubber, zinc oxide and stearic acid into the internal mixer and knea...

Embodiment 2

[0050] This embodiment relates to a processing method for preparing a sealing strip butt joint sheet film from the sealing strip butt joint sheet rubber material of the first embodiment.

[0051] The processing method is figure 1 The sealing strip butt joint thin film processing device shown is carried out, and the sealing strip butt joint thin film film processing device includes an extruder 1, and the extruder 1 can adopt a single-screw extruder with a screw diameter of 60 mm. A molding die 2 is connected to the extrusion head, and the molding die 2 has a film outlet. The sealing strip butt sheet rubber material passes through the extruder 1 and comes out from the film outlet of the molding die 2 to obtain a continuous film with a fixed thickness. The sealing strip is docked with the thin film 3, after the film laying mechanism 3 installed downstream of the extruder 1 is connected to the surface of the thin film, the isolation film 6 is laid, and finally the sealing strip is...

Embodiment 3

[0062] This embodiment relates to the performance verification of the sealing strip butt joint sheet obtained from the sealing strip butt joint sheet compound of the present invention.

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Abstract

The invention provides a sealing strip butt-joint thin slice rubber material and a preparation method thereof, and a sealing strip butt-joint thin slice rubber sheet processing method and processing device. According to the sealing strip butt-joint thin slice rubber material and the preparation method thereof, various raw material components are screened and compounded, a rubber one-section mixing process is adopted, and the sealing strip butt-joint thin slice rubber material for preparing a sealing strip butt-joint thin slice rubber sheet having excellent properties by an extruding process can be obtained. Compared with a conventional sealing strip butt-joint thin slice rubber sheet processing method, the sealing strip butt-joint thin slice rubber sheet processing method can significantly improve the processing efficiency and the product quality, solves the storage problems of a product in a conventional process, and is beneficial to wide application.

Description

technical field [0001] The invention relates to the technical field of butt jointing of sealing strips, in particular to a rubber material for butt jointing of sealing strips and a preparation method thereof. The invention also relates to a processing method and a processing device for preparing a sealing strip butt joint thin film film from the sealing strip butt joint thin film rubber material. Background technique [0002] The main function of the sealing strip is to play the role of sealing, dustproof, waterproof, shock absorption and decoration. According to different assembly parts, the automobile sealing strip is mainly divided into door sealing strip, door frame sealing strip, glass groove sealing strip, trunk sealing strip Sealing strips and cabin sealing strips, etc., and the production processes of different types of sealing strips are not exactly the same. Among them, the production processes of door frame sealing strips and trunk sealing strips are basically the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L91/06C08K13/02C08K3/36C08K3/04C08K3/22C08K5/09B29D7/01B29C47/14B29C48/305
CPCB29C48/30B29C48/305B29D7/01C08L23/16C08L2205/03C08L91/06C08K13/02C08K3/36C08K3/04C08K2003/2296C08K5/09
Inventor 柳延波张振淼吕占有杨宏伟范宁
Owner BAODING WEIYI AUTOMOBILE CO LTD
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