The heat treatment method used in domestic carbide saw blades is generally the salt bath method. After the heat treatment, the oxidation layer is thicker and the deformation of the saw blade is large. When the surface of the saw blade is taper, the oxide layer is not completely worn to make the saw blade undurable. The hardness of ordinary quenching is not good. Sometimes the hardness of the finished product is low, and it is not durable. Sometimes the toughness is low and the blade is easy to explode. The overseas saw blade quenching is treated by vacuum treatment and has the function of preventing oxidation. After quenching, the deformation of the saw blade is small, the difficulty of correcting the stress is reduced, and the saw blade has a small deflection value. According to the incomplete data, the deformation of the vacuum heat treatment is less than half of the ordinary quenching. The stability and repeatability of the vacuum heat treatment are good, and the quality fluctuation of the cutting tool is avoided by the conventional heat treatment. The high speed steel saw blade in vacuum heat treatment can obviously improve the toughness and fatigue strength of the cutting tool, so the saw blade is not easily detonated when cutting fast feed. The surface hardness error of the saws is controlled within one degree, which lays a solid foundation for the performance of the cutting process.

An important index affecting the effect of high-speed saw blade is the geometric taper design of the saw blade. The grinding taper of the saw blade in China is used for the grinding equipment used in the lathe modification. Usually the saw blade is erected, then the single surface is worn and then processed on the other side according to the experience. This way can not guarantee the consistency of the two sides of the saw blade, thus increasing the friction coefficient and cutting resistance of the saw blade, and affecting the cutting life. The special equipment used in foreign countries is made of special equipment. The saw blade is used for flat processing. Through the control system, the taper grinding operation of the saw blade will be operated automatically until it is completed. It can fully guarantee the consistency of the two tapers, thus ensuring the low friction coefficient and cutting resistance of the saw blade, which is beneficial to the cuttings and obviously improves the service life of the saw blade. And cut the verticality.

The aluminum alloy saw blade is used for the aluminum alloy material, sawing, milling, and cutting the groove. In the process of processing, it is in the polishing liquid rich in abrasive, and can be pressed on the workpiece. It can rotate at high speed.

1. It is necessary to finish polishing and polishing under light pressure, especially when polishing pre hard steel and fine grinding paste. When polishing with #8000 grinding paste, the load is 100~200g/cm2, but it is difficult to keep the precision of the load.

2. When the polishing process is stopped, it is very important to make sure that the workpiece is clean and carefully removed from all abrasive and lubricants. Then a layer of mould antirust coating should be sprayed on the surface.

3, each polishing time should not be too long, the shorter the time, the better the function. If the polishing process is too long, it will form "orange peel" and "pitting corrosion".

For more information:

http://www.wococarbide.com/Transaction/en_information.html

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