Q:What heat preservation material is used for thermal insulation of steam pipe in power plant? How thick is the bag? Please advise!

Superfine glass wool insulation rockwool, steam pipe rubber board, aluminum silicate, calcium silicate products, such as polyurethane insulation form, in the application, to see the price, there are commonly used rock wool and polyurethane, rubber board, the price is relatively low, the thickness of rock wool 65, is the most thin.

Q:What is dew point of thermal insulation material?

The heat insulation lining has the characteristics of low thermal conductivity, small density, high flexibility, fire prevention, waterproof, etc..Light weight, 10 96kg/m3, 20kg/m3 following mat, 24 48kg/m3 as in hard, 48 96kg/m3 as core, which 48kg/m can fand a softening point of the ceiling, 500 degrees C, 300 degrees C insulation, the larger the amount, k=0.9.Calcium silicate insulation product was successfully developed in 70s. It has the characteristics of high compressive strength, small thermal conductivity, convenient construction and repeated use. It has been widely used in power systems.Most of the domestic universal small workshop production, have been imported from the United States after the four production lines, advanced technology, instant rejection speed fiber, dry needle felt, stable quality, high temperature 800 to 1250 DEG C.Features: acidity derivative of more than 2, high temperature resistant, general chemical pipe 1000 degrees C more, must use this material. The temperature is about 2000 C.

Q:The ceiling of calcium silicate board and mineral wool board which is good

Mineral wool board ceiling is different than the calcium silicate board ceiling.Or with the calcium silicate board, mineral wool board first big thickness, increase the keel pressure, easy to cause the ceiling of the cave. Second, it is easy to produce some bug mineral wool board.

Q:How to make building glue?

The invention relates to an architectural adhesive, which is characterized in that the composition of the building glue comprises 28-50wt% sodium silicate water solution, 34-53wt% quartz sand and 8-35wt% magnesium silicate.Adhesive for a building, it is the following: the weight ratio of 4 to 6, PVA cellulose 6 - 12, 1 - 2, copolymer admixture from 0.01 to 0.05, according to the proportion of polyvinyl alcohol with hot water first fully dissolved, then adding cellulose, copolymer, admixture and stir evenly. The glue can be combined with Portland cement or construction gypsum to cement all kinds of light plates. This product is non-toxic and tasteless, harmless to the human body, is a wide range of uses, superior technical performance of environmentally friendly building adhesive.

Q:What are the high temperature resistant insulation materials at 400?

Thermal insulation materials for thermal equipment and pipes are mostly inorganic insulation materials. This kind of material has the characteristics of no decay, no burning, high temperature resistance and so on. For example: asbestos, diatomite, perlite, glass fiber, foam glass concrete, calcium silicate and so on.

Q:What's the use of white portland cement?

All the raw meal with the proper components up to the partial melting of the calcium silicate as the main ingredient, the iron content in clinker less addition of gypsum, white water ground made of rigid cementitious material, called white portland cement (the white cement).When grinding cement, allow limestone not to exceed 5% of the cement weight.Note: cement is allowed to be added to the grinding mill without damaging the cement properties. The amount of cement added shall not exceed 1% of the cement weight. The addition of additional substance must be tested and reported to the Ministry of construction materials for approval.

Q:Why is calcium silicate board unsuitable for use in home improvement?

Because the silica plate contains quartz composition, and the content is still higher. Quartz is a carcinogenic substance, the long-term impact of this substance, the human carcinogenic probability will be greatly enhanced

Q:What are the production methods of calcium silicate board material?

At present most of the static process, the raw materials and auxiliary materials according to a certain proportion, adding an appropriate amount of water, while stirring heated to a certain temperature of the gel, and then after molding, autoclave curing, drying is calcium silicate insulation material products. In static method, diatomite is used as siliceous material, calcium material is more lime. The process is simple, low cost, but when the production needs of large capacity and high pressure kettle, the reaction is not complete, the main form of Tobey mullite type calcium silicate board, the use of low temperature (<650 degrees Celsius), it is difficult to produce light and ultra light high strength products.

Q:What are the main use of lime?

Lime milk and mortar, slaked lime or lime paste, with lots of paint. Lime mortar or slaked lime powder can be used to prepare lime mortar or cement lime mixture mortar for masonry or plastering engineering.

Q:Eterpan with calcium silicate is sold on the market are the same thing? Non asbestos calcium silicate board is Eterpan it

The market is generally understood, but in fact, Eterpan belongs to Guangzhou eternit limited production of the 100 year history of eternit brand board, because the cement product is Belgium hetet group invention.