密封用石棉抄取板是美国阿姆斯特朗克公司研制的垫片材料,目前除美国外,欧洲、日本亦已相继投入生产。1.制法密封用石棉抄取板的制法与造纸行业抄取法基本相同,不同之处只是以石棉纤维代替纸浆并采用合成胶乳之类的弹性体作为粘结剂,其基本生产工艺是先用打浆机开松石棉,然后 Asbestos sheet for sealing is a gasket material developed by Armstrong Company in the United States. In addition to the United States, Europe and Japan have successively put into production. 1. Method for making asbestos sheet sealing method and the papermaking industry is basically the same, but the difference is only asbestos fiber instead of pulp and the use of synthetic elastomer such as latex as a binder, the basic production process is the first Open asbestos with a beater, then