Wallpaper construction specifications and precautions
Compared with the wall paint, the wallpaper has the advantages of rich patterns, convenient replacement, better air permeability, and more environmental protection. Therefore, many owners are more inclined to choose the former when they like high-end feelings and do not care too much about prices. The laying process of wallpaper directly affects the visual effect and future maintenance after completion. This article will explain the whole process and the matters needing attention in a simple way.
Preparatory preparation
I. Wall treatment
If there is a seam on the wall, you need to use a putty to make up the seam first, and then use a putty to add more white plastic (vinyl acetate resin). If there is loose powder or dust on the wall, it should be removed by sanding. A wall that is too smooth is not easy to absorb glue, then the force will drop, and it must be sanded before wallpapering. After the above process is completed, a layer of base film is required to form a protective film between the wall surface and the wallpaper, which can not only protect the wall surface, but also prevent water, salt, and alkali from penetrating and corroding the wallpaper, and effectively protect the decoration material from mold erosion. .
Two. Glue preparation
The glue is generally made of a mixture of wallpaper glue and white glue. The viscosity is appropriate and easy to brush. The viscosity is adjusted by the amount of water added. The wallpaper powder is natural starch and the white glue is synthetic resin (vinyl acetate resin). In order to ensure good wallpaper paste effect, different amounts of white glue are often added according to different wallpapers. The cloth surface of the cloth is thicker, and the glue preparation is thicker than other wallpapers. The white glue and wall powder below 15 ounces can be used to modulate. The product with 15 ounces or more can be used for special glue on the wall cloth. The special glue can be applied for 5 squares per kilogram. Meter.
three. Wallpaper clipping
Take a roll of wallpaper and check the pattern, pattern, and direction. After determining which direction is facing upwards, use the top of the kickboard floor as a starting point, measure the height of the wall with a tape measure, and then spread the wallpaper on the table to spread the glue. With the pattern facing downwards, after measuring the length, use a pencil to draw a marking on the back, and then use the scissors to cut the pencil line. According to the wall section size, according to the wallpaper pattern spelling required to cut a good paper, numbered on the corresponding number, two set aside 30 --- 50MM amount of cutting, flat put aside.
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Carburant is an additive applied in steelmaking.It is an essential raw material in refined steel making as well as in electrode paste production.
It is also useful for the use of carbon extenders and other additives, such as brake pads, for friction materials. The additive belongs to the addition of steel and iron. High quality Carbon Additive is an indispensable additive for the production of high quality steel.
There are many kinds of additives, different production techniques, including wood carbon, coal carbon, coke, graphite, etc. There are many kinds of different kinds. The high quality carburizer generally refers to the graphitized carbon addition agent. In the high temperature condition, the carbon atoms are arranged in the microform of graphite, so it is called graphitization. Graphitization can reduce the content of impurities in the carburetor, increase the carbon content and reduce the sulfur content.
The use of carburetor in casting can greatly increase the amount of scrap steel, reduce the amount of pig iron, or use pig iron. The feeding method of furnace smelting should be put in with the waste steel and other materials, and the small dosage can be added to the surface of the molten iron. However, it is necessary to avoid large quantities of feeding in the iron water to prevent the oxidation of excessive carbon and the lack of carbon content of the casting. The amount of carbon added is determined according to the ratio of other raw materials and carbon content. Different types of cast iron are selected according to the need to choose different types of carburetor. The characteristics of the carburizer choose pure carbon graphitized material, reduce the impurities in the pig iron, and choose the suitable carbon to reduce the production cost of the casting.
Carbon Additive
Carbon Additive,Medicinal Powder Activated Carbon,Wood Coal Desulfurization Activated Carbon,Columnar Desulfurization Activated Carbon
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