The galvanizing process for steel wire is to electroplate a layer of zinc on the surface of the steel wire to achieve anti-corrosion and beautification functions. The general process flow is as follows: cutting, degreasing, rust removal, pickling, precipitation, cleaning, passivation, drying
Author: Marisa
1、 Steel wire galvanizing process flow
The galvanizing process for steel wire is to electroplate a layer of zinc on the surface of the steel wire to achieve anti-corrosion and beautification functions. The general process flow is as follows:
1)Preparation work: including cutting, degreasing, rust removal, etc. of steel wires.
2)Pickling process: immerse the steel wire in acid solution for rust removal, cleaning, and activate the surface of the steel wire for subsequent treatment.
3)Precipitation process: Immerse the steel wire into a zinc chloride aqueous solution to obtain a silver plating layer of zinc ions.
4)Cleaning process: Clean off excess zinc chloride on the surface.
5)passivation process: Dip the steel wire into lead solution for passivation treatment.
6)Drying process: Place the steel wire in a well ventilated and dry environment to air dry naturally.
2、 Factors affecting the quality of galvanized steel wire
1)Surface treatment of steel wire: If there are impurities such as oil stains and rust on the surface of the steel wire, it will reduce the quality of galvanizing.
2)Composition of zinc solution: The quality and composition of zinc solution are key factors affecting the quality of galvanizing, including the proportion, temperature, concentration, etc. of components such as zinc chloride and sodium hydroxide.
3)Current stability: The stability of the current directly affects the uniformity and smoothness of the steel wire surface.
4)Galvanizing time: Different steel wires have different requirements for galvanizing time, so adjustments need to be made according to the actual situation.
3、 The advantages and disadvantages of galvanized steel wire
1)Advantages:
(1) Good anti-corrosion performance: A layer of zinc is formed on the surface of the steel wire, which can effectively prevent oxidation and corrosion of the steel wire.
(2) Beautiful appearance: After galvanizing, the steel wire has a good surface smoothness and better appearance quality.
(3) Long service life: The service life of galvanized steel wire will be greatly extended.
2)Disadvantages:
(1) High cost: Compared to some other treatment methods, the cost of galvanized steel wire is higher.
(2) Poor strength and toughness: Compared with iron oxide film and other surface treatment methods, the strength and toughness of galvanized steel wire slightly decrease.
In summary, the steel wire galvanizing process has certain advantages and disadvantages, and comprehensive consideration is needed for different application situations.