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Method for judging the quality of stone crafts products

December 17, 2022

The quality judgment of stone crafts products mainly has the following methods:

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(l) The pattern and tone of the surface are not beautiful. As a decorative stone carving, people mainly value the decorative effect on the surface after processing. Some of the patterns and colors on the surface of the stone carvings are beautiful and generous, some are graceful and luxurious, some are like clouds and flowing water, some are like stars and shining... making the decorative surface have an excellent decorative effect. However, the surface patterns and colors of inferior stone carvings are not beautiful after processing, which cannot give people the enjoyment of beauty. Therefore, the color tone of the surface pattern of stone carvings is the main indicator for evaluating the quality of stone carvings.
(2) The appearance quality of the processed board is poor. The surface characteristics of natural stone carvings are revealed after cutting, sawing, grinding, polishing and other processes. During the processing, some defects will be left on the appearance of the Stone Carving surface (such as the appearance defects of marble slabs: warping, cracks, sand holes, depressions, stains, stains, missing edges and corners, etc., and the appearance defects of granite slabs are: : missing edges, missing corners, cracks, stains, color lines, pits, etc.), if these appearance defects exceed the scope specified in the standard, the stone carving is a substandard product. Using these inferior boards with poor appearance quality for finishing decoration, the overall decorative effect will not be satisfactory. Therefore, when judging the quality of stone carvings, in addition to considering the color of the pattern, the appearance quality must also be checked.
(3) The deviation of the specifications is too large, and the decorative stone carvings are all processed into plates for use. The method of collage (for the ground) or collage (for the wall) is used for construction. In order to make the decorative surface smooth and the joints tidy, the standard stipulates the deviation of the length, width and thickness of the board, as well as the limit tolerance of the flatness of the board surface and the angle of the front and side. Due to the poor quality of the plate during processing, the deviation of its size exceeds the standard range. After the board is laid, the surface will be uneven and the seams will be uneven, especially for facade decoration, which will make the line of the decorative surface irregular and affect the overall decorative effect. Therefore, the deviation of the specification size also directly affects the use effect of the stone carving.
(4) The physical and chemical performance indicators are poor. For decorative stone carvings, their decorative properties (that is, the color pattern, gloss and appearance quality of the stone carving surface, etc.) are often used as the requirements for material selection. However, when evaluating the quality of stone carvings, in addition to considering decorative performance In addition, other quality indicators should also be considered, such as compressive strength, flexural strength, durability, frost resistance, wear resistance, hardness, etc. These stone materials with excellent physical and chemical performance indicators can well resist the influence of various external factors during use, and the decorative effect and service life of the stone carving decorative surface can be improved. On the contrary, the physical and chemical properties of inferior stone carvings are poor, and the durability of the decorative surface of stone carvings cannot be guaranteed. In short, when evaluating the quality of stone carvings, you should not only limit to a certain aspect of content, but should evaluate it as a whole, considering both its decorative performance and its usability.
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