Wear-resistant and corrosion-resistant coating for compensation type manual valve

Abstract

The invention discloses a wear-resistant and corrosion-resistant coating for a compensation type manual valve, and belongs to the field of valve wear resistance. According to the wear-resistant and corrosion-resistant coating for the compensation type manual valve, through the cooperative arrangement of internal compensation flat balls and embedded semi-repulsion balls, when local stress is too large, the embedded semi-repulsion balls at the positions can move towards the internal compensation flat balls and pierce the internal compensation flat balls, so that air hardening materials flowing out of the internal compensation flat balls at fixed points are hardened under the action of air in self-compensation cavities, and therefore the effect of performing fixed-point compensation on the positions, bearing large force, of the coating is achieved, the structural strength of the coating on the valve is effectively improved, and the situation that the coating is peeled due to stress is effectively avoided; and meanwhile, under the action of porous branch fluffs, the strength of the hardened air hardening materials can be improved, so that the part is not liable to be broken accidentally when being stressed again, and the effect of fixed-point compensation is maintained and prolonged.

Description

technical field [0001] The invention relates to the field of valve wear resistance, and more specifically relates to a wear-resistant and anti-corrosion coating for a compensation type manual valve. Background technique [0002] Anti-corrosion coating refers to a covering layer applied on the metal surface to isolate it from the surrounding medium to control pipeline corrosion. It should have good electrical insulation and water resistance, strong adhesion to the surface of the pipeline, resistance to chemical damage and certain mechanical strength. The anti-corrosion coating usually consists of three parts: the first layer is a primer applied to the metal surface to enhance the adhesion between the metal and the main paint; the second layer is the main paint, and the commonly used materials are coal tar enamel, petroleum asphalt , polyethylene adhesive tape, epoxy resin, polyolefin coating, etc. In recent years, the latter two have been used more abroad; the third layer is...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the object of the present invention is to provide a wear-resistant and anti-corrosion coating for a compensation type manual valve, which can be adjusted when the local force is too large through the cooperation of the inner compensating oblate ball and the inner half-repelling ball. , the embedded semi-repelling sphere will move towards the inner compensating oblate sphere, and pierce the inner compensating oblate sphere, so that the air-hard material flowing out from the inner compensating oblate sphere at a fixed point, and hardens under the action of the air in the self-compensating cavity , so as to achieve the effect of fixed-point compensation for the position where the coating is subjected to greater force, effectively improve the structural strength of the coating on the valve, and then effectively avoid the occurrence of skinning due to force, and at the same time cooperate with the function of porous branch line fluff, which can improve The strength of the hardened air-hardening material makes it less prone to accidental breakage when the part is stressed again, thereby maintaining and extending the effect of fixed-point compensation

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