Production technology for casting zinc alloy water faucet

Abstract

The invention discloses a production technology for a casting zinc alloy water faucet. The technology comprises the following steps: A, forming a zinc alloy water faucet body by using gravity casting;B, performing shot-blasting sand-blasting pretreatment on the zinc alloy water faucet body; C, performing cavity wall sealing treatment on the zinc alloy water faucet body; and D, performing surfaceplating-coating treatment on the zinc alloy water faucet body, wherein a technology of the cavity wall sealing treatment in the step C comprises the following steps: C1) mixing powder: enabling dry organosilicon epoxy resin powder to be mixed with dry air, after adequately mixing, sending to a powder spray gun; C2) spraying powder: enabling a powder spray pipe of the powder spray gun to be slowlyinserted in a cavity of a casting body, beginning spraying the powder, enabling the powder spray pipe to be reversely and slowly withdrawn along the cavity of the casting body, after the powder spraypipe is completely withdrawn, stopping spraying the powder; and C3) roasting: placing the sprayed coasting body in an oven for roasting, after roasting, cooling and taking out the casting body.

Description

technical field [0001] The invention belongs to the field of faucet design and manufacture in the plumbing industry, and specifically refers to a production process of a cast zinc alloy faucet. Background technique [0002] China's zinc resource storage and output both rank first in the world, and the development of zinc alloys has broad application prospects. According to different forming methods, zinc alloy can be divided into deformed zinc alloy and cast zinc alloy. Cast zinc alloy has good mechanical properties, wear resistance and corrosion resistance, low density, moderate thermal conductivity and electrical conductivity, high ultimate tensile strength, good wear resistance, good bearing capacity, non-magnetic, and no sparks when collided , vibration and noise reduction performance and lower cost, are more and more widely used in various fields, and bring significant economic benefits. The main application fields of cast zinc alloy are: automobiles, precision machin...

AI Technical Summary

Problems solved by technology

With the increasing artistic requirements for the appearance of the faucet body (such as U-shaped faucets), complex and curved water channels appear inside the body. The traditional die-casting process has problems such as inability to pull cores, high production costs, and low casting yield, which limits its size. batch application

In addition, the zinc alloy casting shell still has the following problems in the process of assembly and use: (1) the inner cavity wall of the casting is relatively rough, and it is easy to scratch the water pipe, especially the polymer water pipe; (2) the body is electroplated The sand attached to the inner cavity wall is easy to fall off when ultrasonic cleaning is performed before, which will pollute the electroplating solution, resulting in poor surface quality of the plated surface of the body; The inner cavity wall is directly exposed to the humid environment, which is easy to corrode and reduces the service life of the faucet

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