Brief Introduction
Nickel-chromium wire drawing die
Nickel-chromium wire drawing die can be used to draw aluminum, copper, aluminum and copper alloys, tinned copper, nickel, chromium, tungsten and molybdenum and other colored gold wire. The most successful is the drawing of aluminum and copper, which was previously drawn with natural diamond or carbide drawing die, and now is made of nickel-chromium-iron-steel wire drawing die, O. Nichrome wire of 16 to 7.6 mm. Its service life is 3 to 5 times higher than that of natural diamond molds; drawing aluminum alloy wires of 1.06 to 4.76 mm is 150 to 200 times higher than that of using hard alloys; drawing 1.87 to 7.6 Millimeter copper wire. It is 3oo to 500 times higher than using a cemented carbide mold. When the copper wire is drawn by a fine-grained drawing die, the production speed can be selected from 8500 to 120,000 feet per minute. Due to the high finish and low friction, the life of the wire drawing die is also extended. Another advantage is that the burrs generated on the copper wire are reduced, improving the painting conditions of the electromagnetic wire. Another benefit of enamel-nickel ferrochrome wire drawing copper wire is the saving of raw materials and the significant reduction in the cost of the wire drawing die. According to the data, when the polycrystalline wire drawing is used instead of the natural diamond model to draw the same size of the twisted wire, the life ratio of the die is about 10:1, and the life ratio of the polycrystalline die is replaced by the hard bonded die. It is about 300:1. The longer the life of the nickel-chromium wire drawing die, the less the die change, and the higher the productivity of the wire drawing machine. The long life of the wire drawing die also reduces the inventory of the mold. This reduces the capital required to stock the mold.
In short, the use of polycrystalline mold to draw non-ferrous metal wire not only can extend the life of the nickel-chromium wire drawing die, better control the size, roundness and smoothness of the wire, reduce the cost of the drawing die per unit length of drawing, and at the same time reduce the die change The time also increased productivity.