Stone is a natural product and a mineral body. It inevitably has some innate defects. When it exists in nature, some lesions will appear. After it is applied to people's living environment, it is more difficult to avoid being damaged by various pollutions and humans. Stone is a natural product and a mineral body. It inevitably has some innate defects. When it exists in nature, some lesions will appear. After it is applied to people's living environment, it is more difficult to avoid being damaged by various pollutions and humans. If the pollution and damage caused by the stone are not treated in time or the disposal method is improper, the application effect of the stone will be greatly reduced, and the beautification atmosphere of the stone use environment will be affected, and some economic losses and economic disputes will be associated with it. Social problems have arisen. Therefore, correctly understanding the stone, understanding the characteristics of various stone, mastering the correct stone protection, cleaning and nursing methods is the premise and necessity for people to maintain the bright color and fresh environment of the stone for a long time. The engraving machine portal recommends stone as a natural building material with dual functions of construction and decoration, which has been favored by people. The reason why people choose stone, in addition to its architectural function, is more optimistic about its natural beauty. Granite uniform color and tough and wearable texture, marble soft and elegant color and natural fresh lines, beautify our living environment, let us fully feel the beauty and charm of nature. As a bright pearl in the art gallery, stone carving has a long history in China. The ancients not only left us with many stone historical relics, but more importantly, they left a lot of history and culture through stone carving works. Modern processing and mining equipment has made this art even more powerful, and the types and grades of stone art have never been developed. As a kind of stone product, with a large number of development and application, some problems related to stone are also diversified and complicated. Therefore, how to scientifically carry out precautionary treatment and post-cleaning and nursing of stone carving stone products, how to preserve these artworks for a long time and to shine forever, has attracted more and more people's attention. First, the general understanding of stone and its application environment 1, the type of common stone Understanding the type and characteristics of the stone used is the basis and necessary to properly clean and care the stone, different stone types have different chemical and physical characteristics. The stone materials on the market are usually divided into two major categories: granite and marble. Granite is a kind of stone with high hardness and strength, so it has good wear resistance and easy to maintain gloss. Most varieties have a large crystal structure on the surface, and the color tone is relatively uniform. The main component is silicate, which is more resistant to acid and alkali and weather resistance. Due to the hard texture of granite, the use of granite products has increased significantly in the past 10 years due to the breakthrough and development of cutting tools and abrasive technology. However, due to its crystal structure, capillary action makes it easy to produce high water absorption and permeability pollution. For example, the pollution caused by a drop of ink on the granite and the pollution formed by the drop on the marble are different. The former is deep and diffused, while the latter is the front surface, so the cleaning cost is also different. The main component of marble is calcium carbonate, and dolomite is also a carbonate (the main component is magnesium carbonate), so it is also classified. Most of these stones are loose in structure and soft in texture, so wear resistance and weather resistance and acid resistance are poor. Compared to granite, the ideal luster of marble-carved artwork can only last for a few months, while granite can last for years or decades. Similarly, a drop of carbonated cola drops burns the stone surface on the marble product. 2, the general characteristics of stone (1) The stone we are talking about here refers to a variety of natural stones that have been artificially processed and applied to various environments around us. (2) Stone is a product of nature. It has a variety of classifications and habits. It has “blood and flesh†and “sicknessâ€, so people need proper prevention and care. (3) Keeping the stone fresh and clean is part of the work of people to beautify the living environment. The natural characteristics of stone determine that it will inevitably have some natural defects and problems, but most of them can be repaired and compensated. (4) Improper use and care of stone can cause serious economic and mental damage to people. (5) Water is the foundation of our lives and the foundation for our lives to be clean. However, for stone, excessive contact with water is the main cause of lesions and damage to the stone. The river sand we see now is that granite rock has been subjected to a lot of rain erosion and weathering. The macula is the product of further oxidation and diffusion of iron in the stone under the action of water. (6) In order to beautify our lives, people have been exploring ways and materials to protect stone. Today's advanced materials development and application technology make it possible to waterproof and prevent stone in the true sense of the stone. It is no longer difficult to remove and clean stone pollution. 3, the natural gas permeability of stone itself due to the existence of micropores and therefore natural gas permeability. Maintaining the natural breathability of the stone is crucial. There are tiny gaps between the stone crystals, we call them micropores. The pore size of different texture stones is different, and the gas permeability of the stone is usually determined by the size of these pores. Keeping the micropores of the stone unblocked, the moisture at the bottom of the stone will evaporate, and the chances of the stone appearing due to moisture will be less. However, it is the capillary action of the micropores of the stone that causes the stone to have different water absorption rates. The water and liquid dirt on the stone surface will also penetrate into the stone to cause damage and pollution to the stone. Therefore, it is important to discuss how to make the stone maintain good gas permeability and prevent liquid from penetrating into the stone. This is an important topic and content for stone protection. This article comes from: http:// http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Calcium Phosphate Granular for fertilizer ,it have white and grey colors ,its powder can be 45mesh to 200 mesh ,granular size from 1-2mm,2-5mm,also we have our new formula ,this is an excellent elements,can make granular easily break down in the soil and release the Phosphorous slowly and stablely.if you need add Sulphur Element ,it is can be accepted ,but MOQ need 100MT at least.the bags we can supply 25kg ,1000kg ,or OEM as your requirements, it should be stored in a ventilative and dry warehouse instead of in the open air ,kept away from water,moisture and sunlight during transport,handled with care so as to avoid damage to bags.
Phosphorus Fertilizer,Tricalcium Phosphate Squeezed Chips,Tricalcium Phosphate Granular,Tricalcium Phosphate Tcp
MIDI FEED BIOTECH LIMITED , https://www.midifeed.com