Ultrasonic machining diamond die has long been used in the domestic application, but used in the hard alloy drawing die processing at present few, especially the larger aperture drawing die is so. Ultrasonic grinding is the transformation of electrical energy into mechanical energy at a frequency of about 20,000 cycles per second (20,000 times per second for longitudinal movement); Speed movement processing equipment. At present, complicated softbank welding device is used in the connection of copying needle and changing pole, otherwise the processing efficiency will be greatly reduced. Due to the processing speed, if the cemented carbide drawing die processing, according to the requirements of process strictly every processing a wire-drawing die need to replace a needle, the atmosphere day frequently change requires a lot of needle, the needle and complex welding must be conducted, it is seriously hampering the this technology in the application oftungsten carbide wire drawing dies to touch. In addition, because the processing speed is fast, difficult to master, not easy to achieve linear processing, and high concentration of energy and other factors, therefore, in the promotion and use is also limited.

Compared with hard alloy die, polycrystalline diamond die drawing die has the following obvious advantages:

1. High drawing efficiency

In the process of using the drawing die, necessary maintenance is very important to the service life of the drawing die and the surface quality of wires. It is usually recommended that customers maintain the polycrystalline diamond drawing die every 24 hours. Within 24 hours, the diameter change of polycrystalline diamond wire drawing die is small, and the rate of wire diameter change of pulled wire is also small. For the whole production process, the compression rate of wire diameter of each drawing die is relatively stable, and the ratio of input and output is large.

2. Good wear resistance and long service life

The drawing die life of polycrystalline diamond is about 30-50 times that of the hard alloy die, so it is not necessary to stop the machine often to replace the die in the drawing process. The aperture of polycrystallinetungsten carbidewire drawing dieschanges very little in unit time, and the size of wire pulled out changes very little, which is very beneficial to the winding of reel wire. Generally, the winding number of wires pulled out is fixed. If the finished size of wires becomes larger soon, the winding number will decrease relatively quickly, which requires constant changes in the size of the reel, which is not conducive to the improvement of production efficiency.

Save on raw materials

If the wire coated with metal on the drawing surface is stopped during the drawing process, the electroplating process does not stop, which will lead to the excessive plating thickness of the wire surface that is being electroplated, and the wire shall be cut off when the drawing starts again, resulting in great waste. The more times the machine stops, the greater the waste will be. Using polycrystalline diamond mold, this waste can be greatly reduced.

Posted by: hannahgwendolyn at 09:36 AM | No Comments | Add Comment
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