Those factors that affect the quality of galvanized iron chains.
1. The size and weight of the iron chain: the iron chain should be fully immersed in the zinc solution at one time to achieve a uniform galvanized film arrangement. If it is too long or too wide, it will be necessary to immerse the worker twice. The appearance of the layer will appear rough, thick, etc. In addition, if the unit weight of the iron chain is too heavy, those who exceed the load of the galvanizing equipment will make the work difficult.
2. The raw material of the iron chain: the raw material of the iron chain will affect the arrangement and thickness of the hot-dip galvanized film, but if the exchange is in advance, the impact can be technically minimized.
3. The combination of dissimilar metals: such as the combination of iron chains and non-ferrous metals such as copper, tin, lead, etc., during hot dipping, the dissolution of this non-metal will result in a change in the arrangement of the zinc film. Another example is the combination of new and old iron chains. During pickling, new raw materials are prone to excessive pickling.
4. Iron chain pollution: such as paint pollution, special grease pollution, etc., which are not easy to remove in general alkaline degreasing liquid. At this moment, it is necessary to use special solvents to eliminate or use incineration, sandblasting, etc. to increase the cost And the work is hard. In addition, the removal of welding slag such as welding touch is also appropriate and important.
5. Welding method: The welding method of the iron chain has a great influence on the quality of the hot-dip galvanized steel layout, and the severe cases may even lead to cracks or product deformation.
