When the zinc layer is seriously damaged and endangers the iron matrix, the zinc will produce electrochemical protection on the matrix, the standard potential of zinc is -0.76V and the standard potential of iron is -0.44V. When zinc and iron form microbatteries, the zinc will be dissolved as the anode, and the iron will be protected as the cathode. Obviously, the atmospheric corrosion resistance of hot dip galvanizing is better than that of electric galvanizing.
Three is to do a good job in the production site of galvanized wire products clean and tidy, according to the scientific operation method to operate the production, the operator should wear the required dress. If it is hot dip galvanized wire products, we must do a good job of passivation treatment, will be able to effectively prevent discoloration, prolong the method of discoloration, can solve the problem of discoloration.
When galvanized wire out of the light plating should be carried out light treatment. The bath temperature of galvanized wire should be controlled well. Galvanized wire, also known as hot dip zinc and hot dip galvanized, is an effective way of metal corrosion prevention, mainly used in various industries of metal structure facilities. It is to immerse the steel parts after rust removal into the molten zinc liquid at about 500℃, so that the surface of the steel member is attached with zinc layer, so as to play the purpose of anticorrosion.
Some large roll galvanized wire products in order to meet different industrial needs, will be further processed on the surface, such as the anti-corrosion layer, galvanized, iron plating, aluminum alloy plating, or in the galvanized wire appearance above the copper plating, brass plating, etc., to strengthen the steel wire and colloidal years and capabilities. Generally, galvanized wire products should be well plated and drawn when they are produced, and the sequence of the two processes should be decided according to the production or industrial needs.
Purpose of galvanized hexagonal net: building wall fixed, heat preservation, heat insulation; Power plant tied pipe, boiler warm; Anti-freezing, residential protection, landscaping protection; Raising chickens and ducks, isolating chicken and duck houses, to protect poultry; To protect and support seawalls, hillsides, roads and Bridges and other waterworks.
The production process is to roll the hot metal billet into 5mm thick steel, and then put it into the wire drawing device, draw into different diameters of the line and gradually reduce the aperture of the wire drawing disk. Production process through cooling, annealing, coating and other processing technology, and then made into a variety of different specifications of galvanized wire. Galvanized wire production because of simple process, wide application, early development. Galvanized wire or steel wire is a cold working product of steel wire, and the material used is generally low carbon steel or stainless steel.