Rubber lining material of corrosion-resistant rubber lining butterfly valve and production method thereof

Abstract

The invention discloses a rubber lining material of a corrosion-resistant rubber lining butterfly valve, the rubber lining material is formed by mixing rubber lining materials A and rubber lining materials B, wherein the two parts respectively comprise raw materials in part by weight as follows: the rubber lining materials A: 85-95 of nitrile rubber 3305, 0.3-0.5 of sulphur, 4-6 of magnesium oxide, 3-4 stearic acid, 2 of antioxidant, 1-2 of 2,5-Di-tert-butylhydroquinone (DTBHQ), 1-2 of antiager RD, 1-2 of antiager 4010 NA, 3-4 of paraffin, 22-25 of quick extrusion black carbon N660, 62-65 of high abrasion furnace black N330, 18-22 of dioctyl phthalate, 25-35 of calcium carbonate, 3-4 of accelerant M, 1-2 of accelerant tetramethylthiuram disulfide (TMTD) and 1-2 accelerant Tetraethylthiuram disulfide (TETD); and the rubber lining materials B: 82-87 of chloropropylene epoxide homopolymer, 12-18 of epichlorohydrin copolymer, 1-2 of zinc stearate, 1-3 of antiager RD, 0.4-0.6 of gum easy T-78, 1-2 of Rhein paraffin, 45-55 of quick extrusion black carbon, 10-14 of kieselguhr, 5-8 of dioctyl phthalate, 4-6 of lead tetroxide, 0.8 of vulcanizer TCY and 1-2 of accelerant Na-22. The rubber lining material has good comprehensive performance, the rubber lining butterfly valve which is obtained after vulcanization has the characteristics of good air tightness, weather resistance, low temperature resistance, oil resistance and the like, and simultaneously has low material cost.

Description

technical field [0001] The invention relates to the field of processing rubber composite materials, in particular to a rubber-lined rubber material for a corrosion-resistant rubber-lined butterfly valve and a preparation method thereof. Background technique [0002] In the fluid pipeline system, the valve is the control element, its main function is to isolate the equipment and the pipeline system, adjust the flow, prevent backflow, adjust and discharge the pressure, so the requirements for the sealing and corrosion resistance of the valve are relatively high. The existing casting The high temperature resistance and corrosion resistance of butterfly valves are not very good. Then, rubber-lined butterfly valves are more and more widely used. The high temperature resistance and corrosion resistance of the rubber-lined rubber materials of existing rubber-lined butterfly valves are not very ideal. Although some have good corrosion resistance, the raw materials are expensive and ...

AI Technical Summary

Problems solved by technology

[0002] In the fluid pipeline system, the valve is the control element, its main function is to isolate the equipment and the pipeline system, adjust the flow, prevent backflow, adjust and discharge the pressure, so the requirements for the sealing and corrosion resistance of the valve are relatively high. The existing casting The high temperature resistance and corrosion resistance of butterfly valves are not very good. Then, rubber-lined butterfly valves are more and more widely used. The high temperature resistance and corrosion resistance of the rubber-lined rubber materials of existing rubber-lined butterfly valves are not very ideal. Although some have good corrosion resistance, the raw materials are expensive and the cost is high.

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