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目前,我国有关单位,遵照毛主席“自力更生”、“艰苦奋斗”的教导,发扬社会主义协作精神,立足于国产原材料,正在研究试制新型的钙塑材料代替木材,为节约木材开辟新的途径。钙塑材料是以人造树脂和碳酸钙或亚硫酸钙等填料制成,即以大量的无机原料和少量有机原料及添加剂制成的新型复合材料。该种材料按塑料的加工方法可以压延成很薄的钙塑纸,可以用模压成各种制品,也可用泡沫塑料的工艺加工成低发泡钙塑板材。钙塑
At present, relevant units in our country follow the guidance of Chairman Mao’s “self-reliance” and “arduous struggle” and carry forward the spirit of socialist cooperation. Based on domestic raw materials, relevant units in China are studying the trial manufacture of new type calcium plastic materials instead of wood and opening up new avenues for saving timber. Calcium plastic material is made of artificial resin and calcium carbonate or calcium sulfite and other fillers, that is, with a large number of inorganic raw materials and a small amount of organic raw materials and additives made of new composite materials. The kind of material by plastic processing methods can be calendered into a thin calcium paper, can be molded into a variety of products, can also be used foam processing technology into a low-foam calcium plastic sheet. Calcium plastic