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1. 发明申请

WO1995017298A1 METHOD OF MANUFACTURING HARD ROLL 审中-公开
标题翻译：制造硬质合金的方法
公开(公告)号：WO1995017298A1
公开(公告)日：1995-06-29
申请号：PCT/JP1994002143
申请日：1994-12-20
申请人： YAMAUCHI CORPORATION , WATANABE, Atsuo , NAKAYAMA, Kenjiro , KATO, Shunsuke
发明人： YAMAUCHI CORPORATION
IPC分类号： B29D31/00
CPC分类号： B29C39/40 , B29C39/028 , B29C39/10 , B29C70/72 , B29C2791/001 , B29L2031/324 , B29L2031/748 , D21G1/0246 , Y10T29/49551 , Y10T29/49552 , Y10T29/4956 , Y10T29/49563
摘要： A method of manufacturing a hard roll for use in an elastic roll of a calendar roll for paper making and the like, according to the invention comprises the steps of pouring a liquid thermosetting resin material into a space between a metallic roll core and an outer die, heating from the outside a greater part of the resin material to harden the same for forming an intermediate having an outer layer of resin while cooling the roll core to leave a viscous liquid stock layer inside the intermediate. Then the intermediate is cooled from the outside of the outer die for shrinkage, and a surplus portion of the liquid stock is pushed upward as the intermediate shrinks. Then the remaining viscous liquid stock is hardened by heating the roll core. According to the method of the invention, the thermosetting resin is prevented from being cracked due to reactive shrinkage and thermal shrinkage of thermosetting resin during the manufacturing of the hard roll. Accordingly, it is possible to efficiently produce a hard roll with exceedingly fewer production steps and reduce production cost thereof, which hard roller is free from cracks on its surface during use and any change in its roll surface hardness and is excellent in durability.
摘要翻译：根据本发明的制造用于造纸等的砑光辊的弹性辊中的硬卷的制造方法包括以下步骤：将液态热固性树脂材料注入金属辊芯和外模之间的空间从外部加热树脂材料的大部分以使其硬化以形成具有外层树脂的中间体，同时冷却辊芯以在中间体内部留下粘性液体储备层。然后中间体从外模的外部冷却以使其收缩，并且随着中间体收缩，液体原料的剩余部分被向上推动。然后通过加热辊芯将剩余的粘性液体原料硬化。根据本发明的方法，由于热硬化性树脂在硬卷制造过程中由于反应收缩和热收缩热收缩而被防止裂纹。因此，可以有效地生产具有非常少的生产步骤的硬辊并降低其生产成本，该硬辊在使用期间在其表面上没有裂纹，并且其辊表面硬度的任何变化和耐久性优异。

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