Title:
FIBROUS CEMENT MOLDED MATERIAL AND ITS PRODUCING METHOD
Document Type and Number:
Japanese Patent JP3308117
Kind Code:
B2
Abstract:
PURPOSE: To enhance reinforcing effect with fibers in a case of molding a building material such as a building board having thick board thickness or a roofing material having large unevenness with a fibrous cement molding material.
CONSTITUTION: A bottom mold 17 loading a cement molding material 11 is lifted by a vibration-transmitting arm 21 at a pre-molding position (b) and an upper pressing board 26 is lowered to make the cement molding material 11 be a nipped state between the board 26 and the bottom mold 17. The cement molding material 11 is composed of 1-5 pts.wt. of pulp and 0.25-1 pt.wt. of organic synthetic fibers to the whole solid component and has a ratio of water/ solid component of 0.4-1.5. In this state, vibrations are generated by a vibration- generating motor 23 and the pulp and the organic synthetic fibers in the cement molding material 11 are two-dimensionally oriented along the mold face to make a flat plate-like pre-molded material 32. This pre-molded material 32 is transferred to a press molding machine in the loaded state on the bottom mold 17 and press molded, then the press molded material is cured and hardened.
Inventors:
Masanori Ukai
Application Number:
JP29099294A
Publication Date:
July 29, 2002
Filing Date:
November 25, 1994
Export Citation:
Assignee:
Nichiha Co., Ltd.
International Classes:
E04C2/04; B28B1/52; B28B3/02; C04B28/00; C04B28/02; C04B28/16; C04B32/02; C04B40/02; C04B111/12; (IPC1-7): C04B32/02; B28B1/52; B28B3/02; C04B28/02; C04B40/02; E04C2/04
Domestic Patent References:
| JP2113902A |
Attorney, Agent or Firm:
Muneo Kako
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