Special-shaped wire drawing die are one of the more widely used die in wire drawing die. The product is used more and more times as the society develops. So let’s talk about the specific steps of producing this product. What should we pay attention to? ?
Wire drawing die mainly include wire drawing die made of diamond, cemented carbide wire drawing die, plastic wire drawing die and so on. There are many other uses. There are many applications of this product in our daily lives. This product is a kind of metal wire that passes through a mold to gradually reach the size that people need from thick to thin. This extremely special mold is a special-shaped drawing mold. The core of the drawing die is generally made of natural diamonds and artificial diamonds (man-made diamonds have ge, synthetic materials, etc.). Copper wire drawing die belongs to a kind of flexible wire drawing die. There are also drawing die made of hard wires, such as tungsten wires and so on. The angle of the compression zone of the copper wire drawing die is generally 16-18 degrees, and the length of the sizing is generally 30-40%, while the angle of the compression zone of the drawing die made of tungsten wire is smaller, generally 12-14 degrees. The length of the fixed line is 60-70%, so the application of this product in life has become more and more.
Shaped wire drawing die
When using anything, you must pay attention to methods and methods. Only by using the product correctly can the product be used to the fullest, and it will be more handy to use. Follow this principle in daily life The life of the things we use will be longer and the effect will be better. Today I want to introduce the use of special-shaped drawing die. Only by mastering these can we use it better.
(1) Copper and aluminum rod (wire) materials. When the remaining other conditions are the same, the tensile force of the copper wire is much greater than that of the aluminum wire, so the aluminum wire is easier to break, and a larger safety factor should be used when the aluminum wire is drawn.
(2) The tensile strength of the material itself. In fact, there are many factors that determine the tensile strength of a material, such as the chemical composition of the material, the calendering process, etc. The higher the tensile strength, the greater the tensile force.
(3) Deformation degree. The greater the degree of deformation, the longer the length of the deformed section of the die hole, which increases the positive pressure of the die hole against the line, and the friction force also increases a lot, and the tensile force also increases with the friction force.
(4) The coefficient of friction between the wire and the die hole. The greater the coefficient of friction, the greater the tensile force. The coefficient of friction is determined by the finish of the wire and mold material, the composition and quantity of the lubricating fluid.
(5) The size and shape of the working area and sizing area of the line die hole. The larger the sizing area, the greater the tensile force.
(6) The position of the wire mold. Improper placement of the wire mold or skewed mold base will also increase its tensile force. It will also lead to the wire diameter and surface quality not reaching the qualified line.
(7) External factors. The wire itself is not straight. In the process of pulling the wire, the jitter caused by the wire and the resistance generated by the wire will all be the change in the stretching force.
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