For improving the quality of diamond tools, we now know 7 effective ways:
1. Adopt high hardness diamonds in the diamond tools manufacture.
Diamond's quality, grit and concentration play decisive roles in the diamond tools' quality. You can find already many famous diamond brands in the world. In August 2007, 20/30 big grit high hardness diamonds that has been produced with China's hinged cubic press machine successfully passed technical identification. These kind of diamonds have advantages in both quality and price on earth market. So manufacturers have an even more good option.
2. Plate some metal elements for the high formation of carbide on diamonds to boost the tools' hold to the diamonds.
A good hold to diamonds can cause the diamonds never to fall off from the diamond tools early. Furthermore, this may also make the diamonds have the great protrusion height, and which means diamond tools will soon be sharper and more durable.
Plating the diamonds with some metal elements, for example Cr, Ni, Ti, W, etc., that will cause the synthesis of carbide, is a great way to boost the diamond tools' hold to diamonds. That is mainly for three reasons. First, the plated metals can stop the diamonds' oxidation, graphitization and the hot corrosion of Fe element under a particular temperature, pressure and the time of sintering. Second, the plated metals can develop carbide alloy on the interface involving the diamonds and the tool's bond in the sintering. This can do much help the chemical bonding and metallurgical combining of the diamonds and the metals in tool's bond. Third, after plated with one of these metals, the diamonds' friction is improved.
3. Use ultrafine powder and pre-alloyed powder in the tools' bond.
Ultrafine powder really helps to decrease the temperature of sintering, and boost the hardness. Pre-alloyed powder can prevent metals of low melting point from losing and segregating Diamond Wire Saw Machine, benefit the elastic limit and yield strength of sintered products, boost the tools' hold to diamonds, decrease the temperature of sintering, and reduce the time of heat preservation.
4. Use good granulation technique in the production of segments.
Good granulation technologies wil dramatically reduce the segregation of diamonds, distribute the diamonds more evenly, enhance the cutting performance of segments, boost the mobility of the powder, benefit the cold pressing technique, and reduce the dust hazards to workers.
5. Utilize the vacuum protection atmosphere hot pressing technique and equipments in the sintering process.
Sintering is just a key technique in the diamond saw blades' manufacture. It can have an effect on the saw blades' segment density, hardness, cutting performance, technical performance of the sintering equipments, production costs, and product quality.
6. Apply Hot Isostatic Press (HIP) and high temperature brazing technique in the manufacture of diamond wire saws.
Hot Isostatic Press (HIP) can decrease the porosity of these products, and enhance the beads' density, hardness, toughness and performance.
Temperature brazing could make the beads have: a reasonable diamonds distribution, chemical bonding and metallurgy combination, a solid hold to diamonds, and good diamonds' protrusion heights. Through the use of this technique, the utilization of diamonds will save you half, the cutting speed will soon be 2 to 4 times of the normal once the useful life is equal, and the production costs will soon be lowered.
7. Use laser welding technique.
Laser welding machines can improve the quality of welding. They are characterized by: big power, less gas consumption, low running cost, less maintenance, reliability, quality of the beam, etc. With the laser welding technique, the fixing way of the saw blade's body and its segments is changed from the manual mode to the fully automatic mode, which will be precise and reliable.
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