shooting nails in concrete

In white iron, its carbon and iron together into iron carbide, crack appears white, very strong and brittle quality, for the material of malleable steel. The alloy grade consists of various alloying elements with different compositions and structures. Because alloying elements in iron ore can make copper through the material thickening degree of strengthening, hardness, impact force, strength resistance, closing rate, elongation, so alloying iron in the exercise of high quality iron, is the primary supplementary element.

The management system of the rinsing water after wire pickling should be discharged regularly and regularly, and the rinsing water should be kept clean and low acid value as far as possible. It is more appropriate to control the pH value of 3. The concentration of plating aid should not be too high. The hot plating wire must be added with ammonium chloride and zinc chloride according to the data of laboratory analysis, and the specific gravity of the composite solution is controlled within the range of 50~80g/L. If ammonium chloride or zinc chloride is added without reference to the results of laboratory analysis, it should be criticized and educated, and economic treatment should be given if necessary.

Twine: Twist two or more wires into a double wire rope and then wrap the twine around the double wire. It’s called a straight twist cord which is the common double strand cord.

Wire factory reminds you in the purchase of galvanized wire, should be stored in dry, ventilated conditions, do not contain corrosive gases, do not mix with organic volatile gas produced paint, plastic and other substances in a good environment. If possible, we can add reliable inner packaging for galvanized parts, and put desiccant. If the zinc layer of white spots and long hair, can only be removed by mechanical methods, and then normal passivation, or completely washed off the zinc layer after re-plating.

In the process of composite plating, it is necessary to stir the plating solution to obtain the composite coating in which the particles dispersed in the matrix metal. Stirring methods include mechanical stirring, air stirring, ultrasonic stirring, bath circulation, etc. In the process of production, the acid activation solution can remove the corrosion products and oxide film on the surface of low carbon steel wire without excessive corrosion on the matrix. Galvanized wire can be used zincate galvanized or chloride galvanized and other processes, appropriate additives should be used to obtain the coating required by the standards of low carbon steel wire.