Steaming-pressing technology for forming high-strength powdered coal ash bricks

Application Number: 00126147
Application Date: 2000.08.22
Publication Number: 1338363
Publication Date: 2002.03.06
Priority Information:
International: B28B3/00
Applicant(s) Name: Hengtongyuan Industry Co Ltd, Henan
Inventor(s) Name: Pu Songrong;Wang Guanli;Xu Yazhong
Patent Agency Code: 41104
Patent Agent: chen gao
Abstract A technology for making high-strength powdered coal ash bricks features that its pressing step can be divided into three stages: pre-pressing, press shaping and maintaining. Its advantages are high compression strength increased to 26 MPa and low dry shrinkage decreased to 0.4 mm/m.