High-pressure lap-joint-free double-airbag rubber dam and production process thereof

A production process, double air bag technology, applied in dams, sea area projects, water conservancy projects, etc., can solve problems such as vulcanization out of sync, increase the difficulty of sealing, etc., achieve high compressive strength, easy operation of the production process, and good production stability Effect
CN104343104AActive Publication Date: 2015-02-11TIELIN ERFAN RUBBER R & D CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIELIN ERFAN RUBBER R & D CO LTD
Publication Date
2015-02-11

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Abstract

The invention discloses a high-pressure lap-joint-free double-airbag rubber dam and a production process thereof, and relates to a large-sized rubber product with a continuous and high-strength skeleton material. The size of a flat airbag which is not inflated is (18mm-25mm)*(6mm-12mm)*(4mm-6mm), a fixed edge end is in a wedged seal, an inflating nozzle is arranged on the middle part of the flat airbag, and a water stop height is 4m to 8m. The high-pressure lap-joint-free double-airbag rubber dam consists of EPDM outer coverage adhesive with excellent weather resistance and reinforced activated by tetrapod-like zinc oxide whiskers, a skeleton layer as well as a middle rubber layer consisting of anti-aging maleic anhydride modified chlorinated polyethylene rubber having good gluing performance with the skeleton layer and an airtight inner rubber layer consisting of modified butyl rubber with excellent air tightness. The production process is simple in operation, capable of satisfying the one-step molding and vulcanizing of a high-pressure high-strength large-sized seamless rubber product and good in production stability; the produced large-sized rubber airbag is high in pressure resisting strength, the application pressure can reach more than 1.0MPa, and the service life is more than 50 years. The high-pressure lap-joint-free double-airbag rubber dam is mainly used for a pneumatic steel-shield rubber dam.
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Description

technical field

[0001] The invention relates to a high-pressure non-overlapping double-airbag rubber dam and a production process thereof, and relates to a large-scale rubber product with continuous high-strength skeleton material and a production process thereof. Especially suitable for pneumatic steel shield rubber dams. Background technique

[0002] High-strength rubber products are mostly reinforced by skeleton materials. And heat vulcanization by means of integral molding and pressure. However, large-scale rubber products, especially closed products, are difficult to be produced by thermal vulcanization with integral molding and overall pressure, because the process requires a large flat vulcanizer or vulcanization tank. A typical large-scale rubber product is a rubber dam. The preparation process is to first prepare a vulcanized rubber film, and then use a heat sealing machine to heat-press the vulcanized rubber film to form a rubber dam, that is, a "seamless" rubber...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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