石膏板吊顶的工艺（Gypsum board ceiling process）.docVIP

石膏板吊顶的工艺（Gypsum board ceiling process） The Han Dynasty stone wing edge (reinforcement) gypsum board paper - let us know about wing edge gypsum board The first chapter: first introduction of gypsum board. Gypsum board gypsum is the base material, adding a small amount of additive and reinforcing fibers, and the surface layer of the back plate, adhesive and protective paper. Gypsum board first in 1890 by the United States production, 1917 in Europe, due to its advantages of lightweight, thermal insulation, sound insulation, convenient construction, environmental protection, application of plasterboard in the construction of the rapid development, production continues to grow. Relevant data show that now the whole world gypsum board production enterprises are about 250 more than the total output of more than 4 billion 500 million square meters. According to statistics, in 2004 the United States Gypsum board output has reached 2 billion 100 million square meters, about 80% gypsum board wall materials used in the United States, and 100% of the residential building adopts plasterboard as internal wall materials, the Japanese production of more than 800 million square meters. The per capita consumption, Canada is 13.5 square meters per person per year, the United States is 8.1 m2 / person years, Japan and France, 4.5 square meters per person per year, the 2.5 square meters per person per year, while China is only less than 0.4 square meters per person per year, far below the level of consumption in other countries. The history of gypsum board industry China only 30 years, from the date of birth for the national support, is still one of the sunrise industry rapid development. At the end of 2005, China gypsum board production line size of about 70, about 100 small plaster ceiling factory, design the production of gypsum board is about 500 million square meters / year, sales of about 400 million square meters / year. Gypsum board can not be eliminated in 100 years in the proc