GRAPHITE-CONTAINING HIGH-TEMPERATURE LUBRICANT FOR HIGH-GRADE STEELS AND CARBON STEELS
    8.
    发明申请
    GRAPHITE-CONTAINING HIGH-TEMPERATURE LUBRICANT FOR HIGH-GRADE STEELS AND CARBON STEELS 有权
    含石墨的高温钢和碳钢的高温润滑剂

    公开(公告)号:US20090305918A1

    公开(公告)日:2009-12-10

    申请号:US12311509

    申请日:2007-09-21

    Abstract: The present invention concerns a high-temperature lubricant for the hot shaping of high-grade and carbon steels, which has a content of graphite, organic blowing agent and inorganic separation agent, and the use thereof. In order to provide a high-temperature lubricant which can be used for a wide range of steel qualities for different wall thicknesses to be rolled and stretching effects and which is moreover stable in respect of temperature, provides constant rolling results upon a change in the wall thickness and/or the quality of steel and does not lead to unwanted cementation of the rolled material, the high-temperature lubricant according to the invention contains at least the following constituents in percent by weight with respect to the solids content: (a) 40 to 90% by weight graphite, (b) 2 to 50% by weight organic blowing agent, and (c) 5 to 50% by weight inorganic separation agent, wherein the organic blowing agent (b) is selected from the group consisting of melamine, melam, melem, melon, phosphate salts and polyphosphate salts of the aforesaid compounds with phosphate chain lengths in the region of n=1 to 1000, reaction products and adducts of the aforesaid compounds with cyanuric acid or isocyanuric acid, and mixtures of the aforesaid, and the inorganic separation agent (c) is a sheet silicate or a mixture of sheet silicates.

    Abstract translation: 本发明涉及一种用于热成型用于石墨,有机发泡剂和无机分离剂的高级和碳钢的高温润滑剂及其用途。 为了提供可用于各种不同壁厚的轧制和拉伸效果的钢种的高温润滑剂,并且在温度方面也是稳定的,在壁的变化时提供恒定的轧制结果 厚度和/或钢的质量,并且不会导致轧制材料的不希望的胶结,根据本发明的高温润滑剂相对于固体含量至少包含以重量%计的以下组分:(a)40 至(b)2〜50重量%的有机发泡剂,(c)5〜50重量%的无机分离剂,其中有机发泡剂(b)选自三聚氰胺 上述化合物的蜜胺,蜜胺,甜瓜,磷酸盐和多磷酸盐,n = 1-1000的范围内的磷酸酯链长度,上述化合物的反应产物和加合物与氰尿酸或 异氰脲酸和前述混合物,无机分离剂(c)是硅酸铝或硅酸盐的混合物。

    Lubrication of magnesium workpieces for hot forming
    10.
    发明申请
    Lubrication of magnesium workpieces for hot forming 审中-公开
    镁工件润滑热成型

    公开(公告)号:US20080184755A1

    公开(公告)日:2008-08-07

    申请号:US11669964

    申请日:2007-02-01

    Abstract: The elevated temperature forming of magnesium based alloy workpieces by stretching, drawing, bending (or the like) a surface of the heated workpiece over the forming surface of a forming tool is improved by forming an integral adherent layer of magnesium hydroxide on the tool-contacted surface(s) of the magnesium alloy workpiece. The magnesium hydroxide layer may be formed by treating the surface(s) of the sheet with an aqueous salt solution (e.g., sodium chloride) at a temperature and for a time to form a protective layer of desired thickness (e.g., up to about thirty micrometers). If desired, an additional layer of forming lubricant, such as a film comprising boron nitride, may be applied to the magnesium hydroxide layer.

    Abstract translation: 通过在成形工具的成形表面上拉伸,拉伸,弯曲(或类似)加热的工件的表面,镁基合金工件的高温成形被改善,通过在工具接触上形成一体的氢氧化镁粘附层 镁合金工件的表面。 氢氧化镁层可以通过在温度和温度下用盐水溶液(例如氯化钠)处理片材的表面而形成,以形成所需厚度的保护层(例如,高达约三十 微米)。 如果需要,可以向氢氧化镁层施加附加的成形润滑剂层,例如包含氮化硼的膜。

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