By a given moulding technique condition, the details of contents for producing asbestos-free calcium silicate board, the primary material for the fire duct, were discussed.

• 研究了一种新型耐火风管的制造方法,探讨了在一定的工艺条件下耐火风管主材-无石棉硅酸钙板的模压成型配方。