人造板工艺（Artificial board process）.docVIP

人造板工艺（Artificial board process） 1. Technology is the basis of the production process of artificial board. Its invention dates back to 3000 BC. At the beginning of the first century BC, the Romans were familiar with veneer manufacturing techniques and plywood manufacturing principles. In 1812, the French invented the single-board sawing machine; In 1834, France issued a patent for planing machines. After 1844, improved rotary cutting machines were used in industrial production. Since then, the continuous improvement of rotary cutting machine has promoted the development of plywood industry. In the mid-19th century, Germany first established plywood mill. 2. Developed on the basis of modern papermaking technology. In 1898 Britain first made a semi-rigid fiberboard on a circular machine. In 1914, the United States produced insulation boards with ground wood pulp and built insulation board factories. In 1916, the dry process was first introduced in Austria. In 1924, the United States created the technology of the malsonet fiber separation, which was able to produce high quality hard fiberboard in 1928. Invented in 1931 Sweden pullen German and French, the following year in Sweden has established the first to use this method in the production of hardboard plants, thus fiberboard manufacture industry just escaped from the paper industry and became an independent category. In 1943 the United States study of dry and semi-dry method manufacturing process to be successful, the early 50 s, in the United States, the federal republic of Germany, the Czech republic and Austria respectively, hardboard produced by the flow method. In the early 1960s, the production process of dry process was based on the production process of the medium density fiberboard. In 1966, the United States built the first medium density fiberboard plant. The development of particle board began in the late 19th century. In 1887, Germany used sawdust and blood glue to make the board, which was the beginnin