A kind of surface hardening process of loose stone

Abstract

The invention relates to the field of product surface treatment, in particular to a surface hardening process for unconsolidated stone. The process includes the following steps of stone trimming, primary grinding, drying, soaking, water removing, consolidating, cooling, fine grinding and protective agent spraying. A hardening layer with silicon dioxide as the main component is formed on the surface of the stone to harden the surface of the unconsolidated stone, the stone has both stone grain and high hardness, the hardness of the stone can reach that of granite, and therefore the stone has a good decorative effect and great practical value; the special protective agent is sprayed on the hardened layer with the silicon dioxide as the main component to improve the surface gloss of the stone, and therefore the stone has waterproofness, high transparency, high toughness, corrosion resistance, weather resistance, stain resistance, chemical medium resistance and the like.

Description

technical field [0001] The invention relates to the technical field of product surface treatment, in particular to a process for surface hardening of loose stone materials. Background technique [0002] Pine stone such as sandstone is the most widely used type of building stone. Hundreds of years ago, buildings decorated with sandstone still exist today, such as Notre Dame Cathedral, Louvre Museum, British Royal Palace, US Congress, Harvard University, etc. The noble and elegant temperament of sandstone and its hard texture have made it a wonderful flower in the history of world architecture. In recent years, sandstone, as a building material, has been highly praised by architectural designers who follow fashion and nature, and is widely used in commercial and home decoration. At present, there are Australian sandstone, Indian sandstone, Spanish sandstone, and Chinese sandstone that have been mined and utilized in the world. [0003] At present, many loose stone materials...

AI Technical Summary

Problems solved by technology

[0003] At present, many loose stone materials, such as sandstone, travertine and weathered marble, are artificially synthesized. Using artificially synthesized stone, organic matter is used in the synthesis process. The organic matter will volatilize harmful gases, causing pollution to the environment and harming human health; moreover , the synthetic stone is easy to crack and change color, and does not have the texture of the stone itself, which will increase the cost of production

Natural pine stones such as sandstone, travertine and weathered marble are used. The surface of the stone is easily polluted and weathered, and the weather resistance of the stone is poor. Moreover, the use of natural pine stones is subject to certain restrictions and cannot be used for floor decoration, such as floors and walls. Brick etc.