Processing is mainly marble sawing, cutting, grinding, polishing. marble of the processability is sawing, cutting, grinding, polishing the ease of processing. Sawing, cutting the same, grinding, polishing Although different, but very similar. Therefore, the machinability of the general marble usually can be cut and grindability [1]. Of marble processing of the main factors:
(1) hardness
In general, the greater the hardness of marble, the more difficult process, the greater the wear on the tool.
(2) The mineral and chemical composition
Components of the material composition of marble material, including mineral composition and chemical composition of different mineral and chemical composition, processing is also different. Rock-forming minerals such as marble calcite, dolomite, and its Mohs hardness is 3 and 3.5-4, respectively, lower than the hardness of granite and easy processing. The main rock-forming minerals of granite are quartz, orthoclase, plagioclase, and their Mohs hardness of 6.5-7. Depends largely on its workability of quartz and feldspar content, the higher the content, the more difficult processing. In the chemical composition, such as higher SiO2 content, processing more difficult.
(3) the rock texture and structure
In general, uniform particles than the uneven marble easy processing, high quality, fine polished than the flaky, dense marble loose marble than the high gloss. Good level of mineral crystallization, and alignment, the optical axis direction will greatly enhance the gloss after polishing. Rock cleavage, grain boundary and the processing of the initial crack is a very important factor.
In addition, the selected processing tools and process parameters are to be considered a factor.
Decorative marble used in construction and decoration are two types of marble and granite. Decorative marble blocks will be processed into building decorative plates, the main process for the cutting, polishing, cutting sheet metal products, trimming chamfer slot. Cutting process in which the most critical, which determines the yield and quality of products [2]. In the cutting process in order to use marble saw blade up. According to international statistics estimate that 50% of the world around industrial marble used in the manufacture of marble processing tools, which are mainly marble processing blades. marble saw blade below to discuss issues related to.
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