(1) Low energy consumption in production。Gypsum of Paris, the binder used in the production of paper gypsum board, consumes 78% less energy per unit of production than cement。(2) Light insulation。With paper gypsum board as a partition wall, the weight is only 1/3 and 1/4 of the brick wall。At the same time, due to the porous structure of gypsum board, its thermal conductivity is 0.30，与砖（0.43) and concrete (1.63) Compared with excellent thermal insulation performance。(3) Excellent fire performance。Because gypsum releases when it's heated...

1) Wall shrinkage deformation and panel cracks: the reason is that the vertical keel is tight on the top and bottom keel, there is no expansion amount, and the wall larger than 2m is not controlled deformation joints, resulting in wall deformation。There should be a 3mm gap around the partition wall, which can reduce the deformation and cracks caused by the influence of temperature and humidity。2) The skeleton connection is not strong, because the local node does not meet the structural requirements, and the local node should be processed strictly according to the diagram during installation。The fastening distance, position and connection method should be consistent...

1, see the thickness of 0.6 mm can be many consumers have a misunderstanding, that the thicker the aluminum buckle, the better, in fact, it is not。Some businesses boast that their plate thickness reaches 0.8mm, one is the use of consumers do not know the market, seeking big and thick psychology;The second is to cover up its technical defects。If the raw material is not pure and the quality is not up to scratch, the plate cannot be evenly thinned, but it is impossible to make the aluminum plate very thin, and it can only be done in the thick。2, select the process...

Signs and inspection reports: pay attention to the purchase of regular gypsum board when selecting。Regular gypsum board, on its packaging box, will clearly print the name of the product, quality grade, production date, and moisture-proof, careful handling and product markings and fonts。Also see whether there is a national "building decoration materials radionuclide limit" standard inspection report。Appearance quality: at 0.5m Under the condition of bright light at a distance, see whether the surface is smooth and smooth, without porosity and pollution...

Jiangxi keel is a kind of metal frame rolled by cold bending process。Because it is a metal material, it is easy to lead to surface rust if the keel factory is not careful in the process of product preservation。This will affect its beauty, and some finished keel materials are relatively poor, which will make the keel appear some rust spots。　　In order to avoid this phenomenon of rust in the keel, many keel manufacturers have tried a lot of methods, we will introduce you how to save the dragon...