The main points of knowledge of tooth grinding saw: saw board is divided into SK-5 (hardness 49-51), 65 manganese (hardness normal 46-48), and ordinary steel belt about 44 degrees (more conventional)
1. Tooth type is divided into: fine grinding teeth (three-sided oblique grinding, the grinder directly grinds the saw road and tooth type) features: good sharpness, labor-saving, exquisite workmanship, and long service life 4-5 times that of ordinary three-sided grinding teeth.
2. Ordinary three-sided grinding (the grinding angle is relatively straight, generally around 35 degrees), it is separated when the saw road is punching (the disadvantage is that the steel is elastic, so the saw teeth are not in a straight line, and the cutting surface is not flat when working), Generally, 65 Mg or ordinary materials are used.
3. Ordinary is the most conventional in the market (low-grade goods):
Why Japanese saws are good? Mainly in terms of gear grinding process and steel plate material. The higher the hardness of the steel, the higher the sharpness, and the higher the processing cost, but the more detailed the processing details. For example, the small iron filings and curling on the tooth edges of the domestically produced goods are serious after grinding the teeth. The reason is that the hardness of the steel is not enough, the speed of the factory is too fast when grinding the teeth (in pursuit of efficiency), and the machinery and equipment are not advanced enough. This is the main reason:
Sima products: 10% cheaper without tax, 210mm, 240mm SK-5 material, fine bevel gear, chrome-plated surface
