Selection of abrasives in the overall grinding construction of stone

1. Diamond bitumen grindstone is made of silicon carbide abrasive with magnesium oxide and magnesium chloride. The use of silicon carbide is better with green silicon carbide. Black silicon carbide is relatively cheaper. The granularity is generally from 16#--1200. #, The hardness of the grindstone produced is also from hard to soft. It is characterized by low cost, good self-sharpness, strong processing adaptability, and can process granite, marble, artificial stone, ceramic tile, etc., but the processing efficiency is compared. Low, the production cycle is relatively long, the grinding head needs a large pressure when working, it is a conventional grinding tool. After the grinding stone has a storage period of more than one year, various properties will change, such as self-sharpness, soft Hardness, etc.

 

 

 

2. A silicon carbide resin grindstone is formed by mixing and solidifying a silicon carbide abrasive and a resin, and is pressed by a phenolic resin, and is mixed with a liquid resin to be poured. Mainly used in fine grinding, the pressing type is characterized by good durability and good wettability during grinding. Especially when processing marble, the grinding luminosity is good and the efficiency is relatively high, but the cost is relatively high, mainly with fine Granularity number, phenolic grindstone is easy to color when grinding light-colored stone, which is the main reason why it cannot be widely used. It is a fine-grained silicon carbide powder and other materials mixed with resin. The grindstone is the main means of applying granite, terrazzo and concrete polishing.

 

 

 

3. Ceramic grindstone, which is made of silicon carbide abrasive mixed with vitreous and sintered at high temperature. It is characterized by good durability, but it is easy to block, the phenomenon of grinding and slipping occurs, and the cost is high. Now it is used less.

 

 

 

4. The metal bond grinding disc is made of diamond and metal powder. It is characterized by high processing efficiency and good processing effect. Generally, it starts from 50#, and the coarse grain size is 20#. It should be carefully selected. Otherwise, it will appear thicker. The scratches are difficult to process behind. In addition, the finest particle size used does not exceed 400#. This tool is used to trim rough surfaces and is the most effective tool to process a satisfactory plane. The cost is relatively high. Said, to be higher, but the efficiency of its processing is unmatched by ordinary millstones.

 

 

 

5. Resin bond grinding disc, which is made of diamond single crystal, fine powder and resin. It is characterized by lower cost than metal and high processing efficiency. It is mainly used for fine grinding of stone, to polishing, after grinding of metal grinding disc. , continue grinding and polishing tools. The cost is moderate.

 

 

 

6. Diamond soft-grinding disc is a new type of tool used for ground refurbishment in recent years. Its lightness and unique flexibility make it a good fit for the machined surface. It can provide the granularity from 20#---3000#. And BUFF black, white (polished). This kind of product uses diamond as abrasive material, which is light in weight and can effectively protect the soft part of the stone surface during grinding. The processed product has high gloss; the nylon gluing is used for connection and convenient operation. Its use, as well as a good upside.