Operation process of galvanized iron wire
Electrogalvanized iron wire is one of the many types of iron wire, which is widely used. Electrogalvanized iron wire is a kind of galvanized iron wire product processed from low-carbon steel wire, which is formed by drawing, pickling, rust removal, high temperature annealing, and hot galvanizing. It is processed by cooling and other technological processes. The galvanized wire has very good toughness and elasticity. The high zinc content can reach 300g/㎡. It has the characteristics of thick galvanized layer and strong corrosion resistance. Electrogalvanized iron wire is widely used in various fields such as construction, handicrafts, preparation of wire mesh, production of galvanized wire mesh, wall mesh, highway fence, product packaging and daily civil use.
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Feb 23,2023
What should I pay attention to when pickling galvanized iron wire?
Galvanized iron wire is more expensive than ordinary iron wire, but in terms of performance, it is also much better than ordinary iron wire. Galvanized iron wire, hence its name, is coated with a layer of zinc on the outside of the wire to better protect it. When producing galvanized iron wire, acid pickling is necessary.
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Feb 14,2023
What is the hardness standard of galvanized iron wire?
The hardness of galvanized iron wire is a common performance index of Z in the mechanical properties of metal materials. Hardness testing is also a fast and economical test method. However, there is no uniform and clear definition of hardness of metal materials at home and abroad, including all test methods. Generally speaking, the hardness of metal is often considered as the resistance of material to plastic deformation, scratches, wear or cutting.
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Feb 15,2023
What are the common problems and solutions in the galvanizing process of galvanized iron wire?
The coating of Shanghai galvanized iron wire is rough, and the passivation film is not bright. The bath temperature is too high; If the current density of negative ji is too high, the zinc content in the bath is too high or the content of sodium hydroxide and DPE is too low; Such problems can be caused by solid particles or excessive foreign metal impurities in the electroplating solution. Solution: First, observe the phenomenon. If the coating of Shanghai galvanized iron wire is rough upwards, it may be that there are solid particles in the plating solution. If the part roughness is serious, the current density may be too high; If the zinc coating is good, but when it is exposed to light in 3% nitric acid, there is dark shadow on the coating, and the film is brown when passivation occurs, which may be caused by foreign metal impurities such as copper or lead in the zinc plating solution. When problems occur in the galvanizing process of Jiangsu galvanized iron wire, first check the temperature and current density, and then measure and adjust the content of zinc and sodium hydroxide in the plating solution through the analysis of the plating solution. Whether the DPE content is low can be determined by Hull cell test. If the coating roughness is not caused by the above reasons, it may be caused by impurities in the electroplating solution. A small amount of electroplating solution can be taken for test after filtration, and then a small amount of electroplating solution can be taken for test after treatment with zinc powder to check whether the problem is caused by solid particles or foreign metal impurities such as copper and lead. It is not difficult to find the cause of the problem by testing one by one.
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Feb 16,2023
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