有光美术化学板是用菱苦土、滷水及鋸末等原料作成的一种建筑材料。生产过程比較簡單,造价低廉。可以代替水泥和木材。有一定的經济价值和政治意义。这种产品在我厂已于1958年7月投入生产。一、原料性質及配合比: 1.苦土,具有胶凝性質,有高度的活潑性,它的細度一般是在120目/平方吋篩上篩余2%。它的化学成分是:氧化镁>88%,二氧化矽3.5%,三氧化二鉄与三氧化二鋁共1.8%,氧化鈣<2.0%,灼減量 The glossy art chemistry board is a building material made from raw materials such as magnesite, brine and sawdust. The production process is relatively simple and inexpensive. Can replace cement and wood. There is a certain economic value and political significance. This product was put into production in our factory in July 1958. First, the nature of raw materials and mix ratio: 1. Bitter earth, with gelling properties, a high degree of liveliness, and its fineness is generally in the 120 mesh / square sieve sieve more than 2%. Its chemical composition is: magnesium oxide> 88%, germanium dioxide 3.5%, antimony trioxide and aluminum oxide 1.8%, calcium oxide <2.0%, burning reduction