The thickness of the marble specification plate is 20mm, and the production process of the marble specification plate can be divided into two types: first cutting and then grinding and first grinding and thick cutting. The first type is first-cut and post-grinding. It is mainly used to process small-sized products. The production process is as follows: cutting board-cutting-roughing-fine grinding-finishing-polishing-repair-inspection-packaging .
1 Saw-cut board The board sawn from the marble block is called a board. The equipment for sawing the wool board uses a diamond frame saw and a diamond cutter or a large cutter. Diamond frame saws are used for large-size blocks, and diamond cutters and large cutters are used for small-sized blocks.
2 Cutting off the cutting board using a bridge cutter to divide the processing.
3 The purpose of coarse grinding and coarse grinding is mainly to solve the flatness and thickness of the board. Most of the grinding allowance should be removed in the coarse grinding stage. The No. 1 grinding stone used for rough grinding should be selected according to the surface roughness of the board. If the surface is rough or the thickness deviation is large, a diamond grinding wheel can be used for leveling. When the surface roughness of the wool board is small and the thickness deviation is small, the grinding is directly performed by a general grinding head. The rough grinding operation procedure is generally a before driving, using the flatness b of the flat surface inspection board to determine the good side of the surface as the fine surface processing c first grinding the surface, after the surface is smoothed, and then looking for the thickness d grinding based on the bottom surface When the water supply should be continuous, avoid the side collision between the grindstone and the semi-finished side. When the processing is performed, the g-grinding plate should be placed flat according to the serial number and tested one by one. After the quality is qualified, it can be transferred to the next process. 4 Fine grinding and grinding are mainly carried out by grinding stones No. 2, No. 3 and No. 4, in order. Every time a grindstone is used, the scratches left by the previous process must be worn away.
By fine grinding, coarse and deep lines and new and shallow grinding lines on the surface of the roughing plate can be removed. 5 fine grinding and grinding using No. 5 and No. 6 grindstone, fine grinding gloss of more than 60 degrees can be transferred to the next step for polishing. 6 polishing indicators. Polishing can be used in the final process of maximizing the natural pattern and color gloss of the stone to achieve the best effect, especially the arm mill, semi-automatic polishing machine and bridge type whose gloss must meet or exceed the standard. It is carried out on a mill. If a resin mill is used, a suitable resin must be used. 7 Repair, inspection, packaging After polishing, the marble board should be repaired and inspected. After passing the inspection, it can be packaged into the warehouse.
The second standard plate processing process is first grinding and then cutting, the production process is as follows: sawing hair plate - rough grinding - fine grinding - fine grinding - polishing - cutting - repair - inspection - packaging into the warehouse. The second process can effectively utilize the board.
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