Fire-resistant fiber spraying is a new type of mechanized refractory fiber construction process. Spraying the refractory fiber and binder on the wall of the furnace by using a sprayer can make the whole liner form a uniform and seamless, high-strength overall product structure, with high construction efficiency, good integrity, seamlessness, and tightness. Good features. Due to the large number of wires in the production line, the hearth of the heat treatment furnace is relatively wide. For example, the conventional design of the hearth structure is very complicated. The design of the heat treatment furnace furnace structure. The furnace wall is a composite structure with a 113mm high-strength, lightweight refractory brick lined with fire-resistant fiber cotton on the outside to form a composite furnace wall with good thermal insulation effect. The top of the furnace adopts aluminum silicate refractory fiber spraying technology to form a spraying structure, which simplifies the structure of the furnace and solves the problems of arching, so that the furnace is light and the heat preservation effect is good. Surface preparations for hot dip galvanizing using electrolytic pickling include pickling and coating treatments. Pickling is mainly chemical pickling and electrochemical pickling. Chemical pickling allows the steel wire to pass through the acid bath. The iron oxide skin chemically reacts with the acid to remove the iron oxide skin. However, due to the slow speed of chemical pickling, if this method is used on a continuous line, the length of the acid tank must be increased to increase the floor space, or to reduce the operating speed, which will affect the production capacity. Electrochemical pickling method is also called electrolytic pickling method. Under the action of external current, electrochemical reaction occurs on the steel wire surface to generate hydrogen gas or oxygen to remove iron oxide skin. The electrolytic pickling speed is fast, and the change of the acid concentration has little effect on the pickling effect. Electrolytic pickling includes cathode pickling, anodic pickling, and yin-yang alternating pickling. Among them, the alternating anode and cathode pickling combines the advantages of a single method and is widely used in production. Shangqiu Jinda Tools Co.,Ltd , https://www.jindameasur.com