As a new type of stone carving material, stone mountain carving has the characteristics of good toughness, portability, color plasticity, anti-aging and corrosion resistance. It is an important form of expression in modern stone carving art. The polishing skills of stone sculpture are not only related to the visual effect of the stone sculpture, but also directly affect the service life and maintenance of the stone sculpture. Therefore, this article will provide an in-depth analysis of the polishing techniques for stone mountain carving from the following aspects.
1. Preparation work before polishing
(1) Appropriate grinding disc selection: Before polishing the stone mountain carving, we need to select a suitable grinding disc according to the surface condition of the stone carving. Generally, a harder grinding disc such as a grinding wheel is used for grinding.
(2) Clean surface impurities: Before polishing, the surface of the stone mountain carving needs to be cleaned to thoroughly remove oil, dust and other impurities on the surface to ensure that the surface is clean and free of impurities, so as to achieve better results.
(3) Protect the equipment: Since the grinding wheel will generate a lot of dust and odor during the grinding process, before formal grinding, the environment around the equipment needs to be protected and protected to prevent excessive dust and odor.
2. Choose the appropriate grinding tools
Different types of stone mountain carving require different grinding tools. Therefore, before grinding, it is necessary to select appropriate grinding tools based on the craftsmanship and condition of the stone carving surface. Under normal circumstances, we use electric grinding wheels, angle grinders, manual sandpaper and other grinding tools for grinding.
(1) Electric grinding wheel: It is suitable for grinding work on larger areas. Its main advantages are simple operation and high efficiency. However, because the grinding wheel is made of very hard material, it is easy to scratch the surface of the stone sculpture, so the strength and frequency need to be mastered to avoid damage.
(2) Angle grinder: Suitable for grinding corners and smaller areas. It can handle the surface of stone sculpture more precisely to avoid unnecessary damage.
(3) Manual sandpaper: suitable for small area grinding work and minute detail processing. Due to its fine operation and balanced force, it is widely used in surface grinding of stone mountain carving.
3. Choose different polishing methods according to stone sculpture of different materials:
When polishing stone mountain carving, you need to choose different polishing methods according to the material and condition of the stone carving surface to achieve the polishing effect.
(1) If the surface is uneven: Before polishing, it is necessary to classify the stone sculpture according to the unevenness of the surface, and use different grinding tools and techniques to polish it.
① Grinding large-area concave and convex areas: When grinding large-area concave and convex areas, we can choose to use an electric grinding wheel for grinding, and use a diamond grinding disc between 40 and 60 for grinding to deal with the uneven and burr-like phenomena on the surface. Flatten it.
② Detailed polishing of specific parts: For the detailed polishing of specific parts, we need to use manual tools for polishing, such as manual sandpaper, grinding wheels, etc. for detailed polishing.
(2) stone sculpture with rust and oxidation on the surface: When performing rust and oxidation treatment, it is necessary to use appropriate polishing methods and tools to achieve the polishing effect.
① Using an electric grinding wheel: If there is a lot of rust on the surface of the stone sculpture, we need to choose a diamond grinding disc between 80 and 120 for grinding. By simply flattening the rust, we can also treat the surface to remove traces of corrosion. , making it look brand new.
② Use hand tools for processing: For rust and oxidation on surface details, we need to use hand tools for polishing, such as manual sandpaper.
4. Polish action skills
When polishing stone mountain carving, you need to master the appropriate movement skills and strength to achieve the polishing effect.
(1) Appropriate pressure is required when grinding: When grinding, it is necessary to use appropriate pressure to grind, so that the grinding disc can be closer to the surface of the stone carving. Only in this way can the grinding effect be ensured.
(2) The polishing direction must be consistent: When polishing stone mountain carving, the polishing direction needs to be consistent. This will not only keep the surface texture consistent, but also be more conducive to improving the polishing effect.
(3) The technique needs to be steady, accurate and smooth: When performing manual polishing, it is necessary to use a steady and smooth technique, which can make the polishing effect smoother and more uniform, avoid abnormal shapes, and keep the surface of the stone carving beautiful and delicate.
To sum up, the polishing skills of stone mountain carving are very important. We need to make full preparations before polishing, choose appropriate polishing tools and polishing methods according to different stone carving materials and surface conditions, and master the appropriate movement skills and strength. to achieve the polishing effect. At the same time, when performing maintenance and care on stone mountain carving, regular polishing is also required to extend the service life and beauty of the stone sculpture.
