technical knowledge

People who have been working on stone for more than ten years may not know it. First of all, according to the national standard, stone can be divided into two levels, excellent and qualified. For smooth stone, the error within plus or minus one millimeter is excellent, and plus or minus two millimeters is considered qualified. Take a look at the hotplate and litchi noodles. The requirements for superior products are plus one minus two. The requirements for qualified products are plus two minus three. However, in the actual production process, people often do it according to industry standards. For example, the smooth surface of indoor pavement may not be very strict with the thickness requirements. However, the requirements for length, width, diagonal and flatness are particularly high, and generally they should be about plus or minus 1mm. Next is dry hanging

2022/09/03 17:17:19

The first view on the identification method of Hubei Huangjin granite stone is to observe the surface structure of the stone with naked eyes. Generally speaking, the stone with uniform fine material structure has a delicate texture, which is a good product of stone; The appearance effect of coarse grained and unequal grained stones is poor, the mechanical properties are uneven, and the quality is slightly poor. In addition, due to the influence of geological process, some veinlets and microcracks often occur in natural stones, which are easy to break along these parts, and should be removed. As for the lack of edges and corners, it will affect the appearance, so attention should be paid to the selection. Second measurement: measure the size of the stone. So as not to affect the splicing or cause the patterns and patterns after splicing

2022/08/28 10:42:55