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    • 6. 发明授权
    • Process for producing a hard roll
    • 生产硬卷的方法
    • US5753165A
    • 1998-05-19
    • US501025
    • 1995-08-11
    • Atsuo WatanabeKenjiro NakayamaShunsuke Kato
    • Atsuo WatanabeKenjiro NakayamaShunsuke Kato
    • B29C39/02B29C39/10B29C39/40D21G1/02A21C13/00B29C39/38
    • B29C39/40B29C39/028B29C39/10D21G1/0246B29C2791/001B29C70/72B29L2031/324B29L2031/748Y10T29/49551Y10T29/49552Y10T29/4956Y10T29/49563
    • A process for producing a hard roll for use as an elastic roll for making paper calendering by casting a liquid thermosetting resin material into a space between a metal roll core and an outer mold, and thereafter heating the resin material from outside to cure a major portion of the material and to form an outer layer resin intermediate body, while cooling the resin material from the roll core side to leave a viscount liquid resin material layer inside the intermediate body. The intermediate body is subsequently cooled from outside the outer mold to contract the body, allowing an excess of the liquid material to be forced out upwardly with the contraction of the body. The material is thereafter heated from the roll core side to cure the remaining viscous liquid resin material. The hard roll can be produced without cracking due to the reaction contraction and thermal shrinkage of the thermosetting resin. The roll is usable without cracking in its surface hardness despite the influence of heat. The process is reduced in the number of steps and improved in production efficiency to ensure a low production cost.
    • PCT No.PCT / JP94 / 02143 Sec。 371日期:1995年8月11日 102(e)日期1995年8月11日PCT 1994年12月20日PCT PCT。 公开号WO95 / 17298 日期:1995年6月29日制造用于通过将液态热固性树脂材料浇铸到金属辊芯和外模之间的空间中制造纸压延的弹性辊的硬辊的制造方法,然后从外部加热树脂材料 固化材料的主要部分并形成外层树脂中间体,同时从辊芯侧冷却树脂材料,以在中间体内留下粘液液体树脂材料层。 随后,中间体从外模外部冷却,从而使本体收缩,从而允许液体物质的过量随着身体的收缩而被向上压出。 然后将材料从辊芯侧加热以固化剩余的粘性液体树脂材料。 可以由于热固性树脂的反应收缩和热收缩而产生不产生裂纹的硬辊。 尽管受到热的影响,但辊的表面硬度也不会破裂。 该过程减少了步数,提高了生产效率,确保了低生产成本。