Environment-friendly stone paper extrusion forming screw, extruder and stone paper production process
Application Number  202010064107 Application Date  2020.01.20
Publication Number  111152436A Publication Date  2020.05.15
Priority Information    
International
Classification
 B29C48/00;B29C48/10;B29C48/59;B29C48/65;B29C48/68;B29C48/76;B29C55/28;C04B26/04  
Applicant(s) Name  JIA ZHONGQI  
Address    
Inventor(s) Name  JIA ZHONGQI;REN ZHEDONG;ZHAO XIAODONG;XUE TAO;WANG WENMAN  
Patent Agency Code  41111 Patent Agent  Zhang Liqiang
AbstractThe invention relates to an environment-friendly stone paper extrusion forming screw. The environment-friendly stone paper extrusion forming screw comprises a shaft portion, a connecting handle arranged at the end of the shaft portion and used for being connected to extrusion equipment and a thread arranged on the shaft portion. A pressure stabilization segment is arranged on the screw. A shaft portion of the pressure stabilization segment is equal in diameter, a thread of the pressure stabilization segment is equal in pitch, a chamfer R2 on the rear side of the thread of the pressure stabilization segment is 2-3 times the angle of a chamfer R1 on the front side, the radius range corresponding to the chamfer R1 on the front side of the thread of the pressure stabilization segment is 3-7 mm, and the radius range corresponding to the chamfer R2 on the rear side is 6-19 mm. The invention relates to an environment-friendly stone paper extruder which comprises a screw and a screw barrel. The invention further relates to a stone paper production process. The environment-friendly stone paper extrusion forming screw, the environment-friendly stone paper extruder and the stone paper production process have good dispersity to materials, the stable extrusion quantity and extrusion pressure and are especially suitable for extrusion production of stone paper formula materials.