Stone polishing process: Stone polishing is an important process for stone conservation. Some stones can be polished directly, and polishing is mainly to increase the brightness of the stone surface. Stone polishing is generally carried out according to the procedure of rough grinding → semi-fine grinding → fine grinding → fine grinding → polishing, and some of the rough grinding steps can be omitted, mainly depending on whether the surface of the original stone has undergone preliminary treatment. ①Coarse grinding: the grinding disc is required to take a deep knife, the grinding efficiency is high, the grinding pattern is coarse, and the ground surface is rough.
It mainly removes the saw blade marks left by the stone in the previous process and the smoothness of the stone , The modeling surface is ground in place; ②Semi-fine grinding: remove the traces of rough grinding to form new finer lines to make the surface of the stone smooth and smooth; ③fine grinding: the pattern, particles and color of the stone surface after fine grinding have been It clearly shows that the surface is fine and smooth, and there is a weak gloss at the beginning; ④Fine grinding: The surface of the stone after the fine grinding has no traces that can be noticed by the naked eye. The surface is getting smoother and the gloss can reach up to 55 degrees or more;
⑤Polishing: Use a special granite polishing machine to grind the stone from coarse to fine with a special granite polishing machine, so that the ground is bright and smooth as new . The polished stone surface is as bright as a mirror, and its gloss can reach more than 85 degrees. According to different types of stone, different grinding and polishing processes are adopted.
1. Grinding and polishing process of flat plate: check the condition of the material-glue repair-check before starting-upper plate-trimming-start each grinding head in turn-observe the polishing situation-adjust the polishing parameters-drying-waxing, cleaning -Inspection-lower board-packaging. 2. Grinding and polishing process of arc panel: check material condition-glue repair-manual rough grinding-inspection-upper board-check before starting-rough grinding-check rough grinding condition-fine grinding-polishing-check polishing condition-lower board. 3. Grinding and polishing process of special-shaped lines: check the condition of the material-check whether the shape of the model is qualified-draw contour lines according to the standard template-rough grinding both ends-rough grinding from both ends to the middle-fine grinding-splicing-water milling knife 400# After disassembling-grinding and polishing-inspection.
It mainly removes the saw blade marks left by the stone in the previous process and the smoothness of the stone , The modeling surface is ground in place; ②Semi-fine grinding: remove the traces of rough grinding to form new finer lines to make the surface of the stone smooth and smooth; ③fine grinding: the pattern, particles and color of the stone surface after fine grinding have been It clearly shows that the surface is fine and smooth, and there is a weak gloss at the beginning; ④Fine grinding: The surface of the stone after the fine grinding has no traces that can be noticed by the naked eye. The surface is getting smoother and the gloss can reach up to 55 degrees or more;
⑤Polishing: Use a special granite polishing machine to grind the stone from coarse to fine with a special granite polishing machine, so that the ground is bright and smooth as new . The polished stone surface is as bright as a mirror, and its gloss can reach more than 85 degrees. According to different types of stone, different grinding and polishing processes are adopted.
1. Grinding and polishing process of flat plate: check the condition of the material-glue repair-check before starting-upper plate-trimming-start each grinding head in turn-observe the polishing situation-adjust the polishing parameters-drying-waxing, cleaning -Inspection-lower board-packaging. 2. Grinding and polishing process of arc panel: check material condition-glue repair-manual rough grinding-inspection-upper board-check before starting-rough grinding-check rough grinding condition-fine grinding-polishing-check polishing condition-lower board. 3. Grinding and polishing process of special-shaped lines: check the condition of the material-check whether the shape of the model is qualified-draw contour lines according to the standard template-rough grinding both ends-rough grinding from both ends to the middle-fine grinding-splicing-water milling knife 400# After disassembling-grinding and polishing-inspection.
