When the drawing rate is used to control the drawing of large coils of galvanized wire, the control value should be determined by experiments. According to the requirement of punctuality in the experiment, the corresponding drawing rate should be measured for each specimen according to the drawing stress of the standard rules, and the uniform value of the specimen should be taken as the practical drawing rate of the batch of galvanized wire in the furnace. If the strength of galvanized wire is on the high side and the drawing rate is less than 1% evenly, the drawing rate of galvanized wire should still be controlled by 1%.
When the large volume galvanized wire is drawn, it can not be controlled by drawing rate, and it is necessary to pull multiple galvanized wires connected, and the drawing rate and control stress of each wire should conform to the standard rules. Drawing speed control: to make galvanized wire fully deformed, it is necessary to properly control the drawing speed, generally 0.5- 1.0 is appropriate.
Choose galvanized wire drawing single control, simple and convenient construction. But the raw material is not uniform galvanized wire, it is impossible to pull the quality of the experiment can not be ensured. Dual control can prevent the above problems. When drawing, the control stress has reached, the drawing rate does not exceed the promised value, can be considered qualified.
Galvanized wire is made of high quality low carbon steel wire rod processing, is made of high quality low carbon steel, after drawing molding, pickling rust removal, high temperature annealing, cooling and other processes. Galvanized wire is divided into hot galvanized wire and cold galvanized wire. Hot dip galvanized wire is in hot melt zinc liquid dip plating, production speed, thick but uneven coating, the market allows the thickness of 45 microns, up to 300 microns above. It is dark in color, consumes more zinc metal, forms infiltration layer with base metal, and has good corrosion resistance. Hot dip galvanizing can be maintained for decades in outdoor environment.
Post time: 23-11-21
