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Preparation method of rubber lining material for soft-sealed gate valve plate

A technology of soft sealing and rubber material, which is applied in the field of rubber lining rubber material preparation, can solve the problems of high energy consumption, poor heat resistance and high cost in the production process, and achieve the effects of improving physical stability, low material cost and prolonging life

Active Publication Date: 2016-08-17
TONGLING TIANHAI FLUID CONTROL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the rubber lining of the existing soft-sealed gate valve plate has unsatisfactory air tightness, poor heat resistance, poor memory and short service life, high cost, and high energy consumption in the manufacturing process. A rubber-lined rubber material for a soft-sealed gate valve plate and a preparation method thereof

Method used

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  • Preparation method of rubber lining material for soft-sealed gate valve plate
  • Preparation method of rubber lining material for soft-sealed gate valve plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: (1), the preparation of A sizing material:

[0012] In parts by weight, 10 parts of hydroxyethyl methacrylate, 15 parts of tetraethylene glycol diacrylate, 1 part of sodium persulfate, 2 parts of guar gum, 5 parts of aluminum silicate fiber, Add 10 parts of fumed silica and 0.4 parts of polypropylene glycol diglycidyl ether to deionized water and mix to prepare a monomer solution, then add 40 parts of natural rubber SVR10 powder to the prepared monomer solution, and mix to prepare a suspension system ; Heating and pressurizing the suspension system to form an embryo body, and keeping the embryo body at 500°C for 30 minutes to obtain A rubber compound;

[0013] (2), preparation of B rubber material:

[0014] In parts by weight, 70 parts of water-based fluorocarbon emulsion resin, 2 parts of rosin water, 3 parts of metal particles, 2 parts of isopropanol, 1 part of diacetone acrylamide, 1 part of polyorganosiloxane, 20 parts of dispersant and Add 16 parts ...

Embodiment 2

[0016] Embodiment 2: (1), the preparation of A sizing material:

[0017] In parts by weight, 10-15 parts of hydroxyethyl methacrylate, 30 parts of tetraethylene glycol diacrylate, 2 parts of sodium persulfate, 3 parts of guar gum, 10 parts of aluminum silicate fiber 1 part, 13 parts of fumed silica, 1 part of polypropylene glycol diglycidyl ether were added to deionized water and mixed to obtain a monomer solution, and then 55 parts of natural rubber SVR10 powder were added to the prepared monomer solution, and mixed to obtain Suspension system; heat and pressurize the suspension system to make an embryo body, and keep the embryo body at 600°C for 40 minutes to prepare A rubber;

[0018] (2), preparation of B rubber material:

[0019] In parts by weight, 75 parts of water-based fluorocarbon emulsion resin, 3 parts of rosin water, 5 parts of metal particles, 3 parts of isopropyl alcohol, 2 parts of diacetone acrylamide, 2 parts of polyorganosiloxane, 25 parts of dispersant and...

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Abstract

The invention discloses a method for preparing a rubber-lined rubber material for a valve plate of a soft-sealed gate valve, which comprises the following steps: (1), preparation of A rubber material; (2), preparation of B rubber material; (3), A rubber material Mixing with B sizing material: After mixing the above-mentioned A sizing material and B sizing material in a weight ratio of A:B=(2-3):1, add them to an open mixer, and mix them. Pass 3‑5 times. The beneficial effect of the invention is that the rubber material does not need to be masticated and can be produced at a relatively low temperature, and the rubber material is vulcanized on the surface of the soft-sealed valve plate and the inner surface of the valve hole, and the obtained rubber-lined valve plate has good elasticity , hardness, air tightness, heat resistance and good memory, etc., and the material cost is low; adding titanium dioxide during mixing can improve the physical stability of the compound and further prolong the life.

Description

technical field [0001] The invention relates to a preparation method of a rubber-lined rubber material, in particular to a preparation method of a rubber-lined rubber material for a soft-sealed gate valve plate. Background technique [0002] Soft-sealed gate valve, industrial valve, the opening and closing part of the soft-sealed gate valve is a gate, the direction of movement of the gate is perpendicular to the direction of the fluid, the gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate has two sealing surfaces, and the two sealing surfaces of the most commonly used mode gate form a wedge shape and a wedge angle. In terms of water quality: the soft-sealed gate valve avoids secondary pollution of water quality in the pipe network, reduces direct contact between water quality and metal, and prevents debris from blocking the valve. In terms of manufacturing: Soft-sealed gate valve has the advantages of light switch, reliable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/12C08L51/04C08L23/16C08L93/04C08L83/04C08K13/04C08K7/10C08K3/36C08K3/08C08F253/00
CPCC08F253/00C08F255/06C08L51/04C08L2201/14C08L2201/08C08L2205/035C08L27/12C08L23/16C08L93/04C08L83/04C08K13/04C08K7/10C08K3/36C08K3/08C08K2003/2237C08F220/58C08F220/281C08F222/20
Inventor 王胜原
Owner TONGLING TIANHAI FLUID CONTROL CO LTD