Briefly introduce the processing technology of marble mechanical components

Marble mechanical components are mainly used to inspect the flatness of parts. Granite measuring tools are basic instruments used in industrial inspection, suitable for the inspection and measurement of instruments and mechanical components.

Marble mechanical components are mainly composed of granite minerals, including pyroxene, plagioclase, a small amount of olivine, biotite, and trace amounts of magnetite. They have a black color and a structure that has undergone billions of years of aging. The texture is uniform, the stability is good, the strength is high, and they can be maintained under heavy loads. Suitable for industrial production and laboratory measurement work.

The marble mechanical components are made of "Jinan Green" stone material through mechanical processing and manual precision grinding. Black luster, uniform structure and texture, good stability, high strength, able to maintain under heavy load and general temperature, and has the advantages of non rusting, non magnetization, and invariance Marble slabs are suitable for measuring tools in mechanical factories.

Processing Technology

The processing of marble mechanical components involves first using a diamond circular saw blade to cut the marble block into the required size, and then going through several processes of grinding with a grinding wheel. When drilling is required, a diamond core drill bit is used. Use gray cast iron grinding tools and silicon carbide abrasives for precision grinding. Fine grinding is completed by skilled technicians. The inspection of product quality is carried out using electronic profilometers, automatic collimators, and laser measurement systems. The quality standard should achieve a flatness tolerance of no more than 4 μ m within the range of lm × lm, and an angle accuracy within ± 0.2 "radians. Special attention should be paid to the selection of cutting parameters when sawing marble with diamond circular saw blades. If a new diamond saw blade is used, it can first saw silicate bricks or similar materials with a small cutting force to facilitate cutting. When sawing, the circumferential speed of the saw blade is set at 25mm-30m/s, the feed speed is set at 0.4m-1.0m/rail, and the sawing speed is set at 25mm-40mm. The diamond saw blade used has a diameter of 320-1250mm, a blade thickness of 3.1mm-7.0mm, and is made of 50/40 mesh round synthetic diamond and copper nickel alloy binder. The blade head is welded to the steel saw blade substrate using silver welding technology at a temperature of 650 ℃ in a high-frequency furnace.

It should be pointed out that not all marble is suitable for making the base of this measuring device. It is advisable to use marble with a small linear thermal expansion coefficient and a fine-grained structure.