公开(公告)号：US20040201120A1

公开(公告)日：2004-10-14

申请号：US10768096

申请日：2004-02-02

申请人： LAFARGE NORTH AMERICA, INC.

发明人： Elizabeth Colbert

IPC分类号： B29C044/20 ,  B05D001/02 ,  B29C044/58

CPC分类号： C04B38/10 ,  B01F3/04446 ,  B01F5/043 ,  B28B19/0092 ,  B28C5/026 ,  B29C44/3446 ,  C04B28/14 ,  C04B40/0028

摘要： A method of manufacturing gypsum board includes applying compressed air to an input end of a tube, wherein the tube includes the input end, an output end, and a venturi located between the input end and the output end; admitting a foaming agent to the input end of the tube so as to form a mixture of the compressed air and the diluted foaming agent; passing the mixture through the venturi and out the output end; combining the mixture with gypsum and water to form a gypsum slurry; and casting the gypsum slurry onto a continuous web for forming a gypsum board.

摘要翻译： 制造石膏板的方法包括将压缩空气施加到管的输入端，其中管包括位于输入端和输出端之间的输入端，输出端和文丘里管; 允许发泡剂到管的输入端，以形成压缩空气和稀释发泡剂的混合物; 将混合物通过文氏管并输出出口端; 将混合物与石膏和水混合以形成石膏浆料; 并将石膏浆料浇注到用于形成石膏板的连续纤维网上。