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公开(公告)号：US5259147A
公开(公告)日：1993-11-09
申请号：US22743
申请日：1993-02-18
申请人： Wolfgang Falz , Gunter Bigorajski , Herbert Exner
发明人： Wolfgang Falz , Gunter Bigorajski , Herbert Exner
CPC分类号： C09K3/1418 , Y10T428/24413
摘要： A granular abrasive material is produced from a dispersion consisting of raw materials containing alumina, compounds containing silica and other additives. The dispersion is ground to a sinterable slip with a grain size of less than 1 micrometer. The slip is dried and may be pressed before being subjected to a multi-stage heating process to produce sintered corundum crystals.
摘要翻译： 粒状研磨材料由含有氧化铝的原料，含有二氧化硅的化合物和其它添加剂组成的分散体制成。 将分散体研磨成粒度小于1微米的可烧结滑移。 将该滑移物干燥并且可以在进行多级加热处理之前进行压制以制造烧结的刚玉晶体。
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公开(公告)号：US4393021A
公开(公告)日：1983-07-12
申请号：US271983
申请日：1981-06-09
CPC分类号： B30B11/228 , B01J2/20 , B02C4/10
摘要： A pasty mix of granular grits, binder and filler is pressed through a sieve web by rolling action to form cylindrical, worm-like extrusions. After hardening in a heating duct the extrusions are subjected to the same action and thereby granular grit particles are formed each of which contains several grits.The apparatus for carrying out the method includes a sieve web which co-operates with a rotor having several freely rotatable rollers around its periphery.
摘要翻译： 通过滚动动作将粒状砂浆，粘合剂和填料的糊状混合物通过筛网压制以形成圆柱形蠕虫状挤出物。 在加热管道中硬化之后，挤压件受到相同的作用，由此形成颗粒状颗粒，每个颗粒包含几个砂粒。 用于实施该方法的装置包括与其周围具有几个可自由旋转的辊的转子配合的筛网。
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公开(公告)号：US4386943A
公开(公告)日：1983-06-07
申请号：US163951
申请日：1980-06-30
申请人： Harald Gumbel , Gunter Bigorajski
发明人： Harald Gumbel , Gunter Bigorajski
CPC分类号： D06N7/00 , B24D11/001 , C08L61/20 , Y10T428/31786 , Y10T428/31797 , Y10T442/2074
摘要： A treated polyester fabric for use as a carrier for a flexible abrasive is impregnated with a substance which comprises at least one amine formaldehyde resin. Preferably, in the dry state, the impregnating substance comprises at least 10% by weight of the resin(s), and weighs at least 20% of the weight of the fabric alone. Urea and melamine formaldehyde resins are particularly useful.
摘要翻译： 用作柔性磨料的载体的经处理的聚酯织物用包含至少一种胺甲醛树脂的物质浸渍。 优选地，在干燥状态下，浸渍物质包含至少10重量％的树脂，并且重量仅占织物重量的至少20重量％。 尿素和三聚氰胺甲醛树脂特别有用。
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