Technical parameters of granite cutting wire saw
The linear speed of the diamond wire saw is adjusted according to the different hardness of the stone type. The linear speed of cutting soft granite is generally 25~30m/s. The linear speed of cutting medium hard granite is generally 22~26m/s. The linear speed of cutting hard granite is generally 20~24m/s. The linear speed of cutting marble is generally 30~35m/s. The linear speed of cutting abrasive rock is generally 30~35m/s. In the initial cutting stage of the new wire saw, its linear speed should be reduced by 2~3m/s compared with the above-mentioned standard, so as to facilitate the diamond edge.
The composition of the granite cutting wire saw
Granite quarrying and block cutting mainly use rubber or plastic wire saws, and the bead type is sintered. This is because the use of rubber or plastic fixation can prevent the quartz and feldspar particles in the cuttings from entering between the beads and the wire rope, causing corrosion and damage to the wire rope. Therefore, rubber or plastic fixed wire saws can be used for cutting hard stones such as granite.
Application of diamond wire saw in granite processing
Granite slab processing
Traditional granite slabs are cut with a sand saw. The process efficiency is low, and the cutting varies greatly depending on the variety of stone. Its circulating water treatment and pollution treatment systems are complex, and the initial investment in equipment is large. The beaded rope saw cutting can effectively solve these problems. At present, there has been a trend in the world to use the beaded rope saw to cut large boards.
The beaded wire saw is not only used to mine blocks, but also can process various specifications of stone arcs, special shapes, cornerstones, etc. , and is equipped with two kinds of microcomputer control and profiling. For a long time, sand saws have been used for sawing granite and other hard stone slabs, resulting in large pollution and low efficiency, and a large amount of waste is generated during sawing. The emergence of multi-wire wire saws has greatly improved the competitiveness of beaded wire saw processing in this field, and has the advantages of high processing efficiency, small footprint, low energy consumption, and less waste. Although the processing cost is about 20% higher than that of sand saws, due to the continuous development of wire saw sawing technology, its cost has been decreasing, and coupled with the advantages of energy saving and environmental protection, it is believed that sand saws will be replaced in the near future, occupying hard The huge application market of stone slab processing.
Processing of shaped and curved stone
Special-shaped curved stone products have shown outstanding value in recent years, the market demand is growing, and its processing technology and equipment have also developed greatly. A CNC special-shaped stone processing machine produced in Italy, the specifications of the largest workpiece can be: Length 2.5mx width 15mx height 15m, equipped with numerical control device, can control 5 degrees of freedom positions, with high cutting speed, low labor requirements, flexible adjustment, automatic tension and other advantages. The special-shaped stone processing machine takes full advantage of the flexibility of wire cutting. Move the tool or work through the x, y and z axes to achieve curve cutting, which can excellently complete many processing processes that cannot be achieved by conventional tools, such as the “hollowing out” of handicrafts, and can also process various curved surfaces, drum-shaped surfaces and stone pillars. decorative material. Different types and specifications of diamond beaded ropes have different application fields. Therefore, it is necessary to select the appropriate diamond beaded rope and determine the processing parameters according to the type of material to be processed, hardness and other factors.