Valve gate disc made from novel environment-friendly material and production process thereof

Abstract

The invention discloses a valve gate disc. The valve gate disc comprises a gate disc body and a nut, wherein the gate disc body is integrally formed by a valve plate and a valve rod, the interior of the gate disc body is of a hollow structure, the nut is positioned at the upper part of the gate disc body and is connected with a valve screw rod, a sealing ring is arranged between the outer side ofthe nut and the inner wall of the valve rod, the outer surface of the gate disc body is wrapped in a plastic body, positioning holes are formed in the two sides of the valve plate, and positioning columns corresponding to the positioning holes in position are arranged on the inner wall of the plastic body. According to the valve gate disc, the gate disc body is integrally formed by caprolactam, alight-resistant agent, a heat stabilizer, a fiber material and graphite through injection molding, wherein the light-resistant agent, the heat stabilizer, the fiber material and the graphite are addedin proportion, and the advantages that the energy-saving and environment-friendly effects are achieved, the processing technology is simple, the rate of finished products is high, the environment isnot polluted, and the labor intensity of workers is low are achieved; and the outside of the gate disc body is wrapped in the plastic body, so that the metal valve plate is isolated from a fluid, it is guaranteed that a water source is not polluted, processing is easy, materials are saved, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a valve gate made of novel environmental protection materials and a production process thereof. Background technique [0002] Valves are widely used in water supply and drainage pipelines. They have adjustment and cut-off functions, and they can be opened and closed by lifting and lowering the gate. At present, the gate materials in the market are mostly cast iron, cast copper and cast iron cast iron. The casting process uses resin or casting sand. First, the sand core is made, and then the sand core and casting sand are used to make the model. Finally, molten iron is cast, or gravity casting is used to achieve the gate. After the plate is formed, it can become a qualified gate after sand cleaning, grinding, coating and rubber lining. During the production process, a large amount of sand that cannot be reused and high energy consumption and waste gas generated by the electric furn...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a valve gate with reasonable structural design and environmental protection, which solves the problems of high manufacturing cost, low efficiency and easy pollution of the existing gate

Images