COMPOSITION FOR PROTECTION FROM SCALE AND AS LUBRICANT FOR HOT PROCESSING METALS
    107.
    发明申请
    COMPOSITION FOR PROTECTION FROM SCALE AND AS LUBRICANT FOR HOT PROCESSING METALS 审中-公开
    用于防腐剂的组合物和用作热处理金属的润滑剂

    公开(公告)号:US20160215232A1

    公开(公告)日:2016-07-28

    申请号:US14778322

    申请日:2014-03-11

    Abstract: A composition for protection from scale and as a lubricant for the hot processing of metals is disclosed. The composition includes a mixture of fine-powder materials containing at least the following constituents: (a) 0 to 15% by weight of secondary or tertiary calcium phosphate compound, hydroxyapatite or a mixture thereof, (b) 0.1 to 35% by weight of fatty acid, fatty acid salt or a mixture thereof, (c) 1 to 90% by weight of ground borosilicate glass which in relation to the borosilicate glass contains Na, B, Si and Al in the following proportions by weight expressed by their respective oxides: 1 to 30% by weight of Na2O, 2 to 70% by weight of B2O3, 10 to 70% by weight of SiO2, and 0 to 10% by weight of Al2O3, (d) 9 to 85% by weight of condensed alkali metal phosphates, (e) boric acid, boric acid salt or a mixture thereof in an amount corresponding to a boron content, expressed by the oxide, of 0 to 3.2% by weight of B2O3, and (f) 0 to 10% by weight of graphite. The mixture has a mean particle size D50 of

    Abstract translation: 公开了一种用于防止水垢和用作金属热加工的润滑剂的组合物。 该组合物包含至少含有以下成分的细粉末材料的混合物:(a)0至15重量%的二次或三次磷酸钙化合物,羟基磷灰石或其混合物,(b)0.1至35重量% 脂肪酸,脂肪酸盐或其混合物,(c)1至90重量%的研磨硼硅酸盐玻璃,其相对于硼硅酸盐玻璃含有Na,B,Si和Al,其重量百分比由其各自的氧化物 :1〜30重量%的Na 2 O,2〜70重量%的B 2 O 3,10〜70重量%的SiO 2和0〜10重量%的Al 2 O 3,(d)9〜85重量% 金属磷酸盐,(e)硼酸,硼酸盐或其混合物,其量相当于由氧化物表示的硼含量为0〜3.2重量%的B 2 O 3,(f)0〜10重量% 的石墨。 该混合物的平均粒度D50 <300μm。

    Method for producing seamless tubes
    110.
    发明授权
    Method for producing seamless tubes 有权
    无缝管生产方法

    公开(公告)号:US08490452B2

    公开(公告)日:2013-07-23

    申请号:US13205985

    申请日:2011-08-09

    Abstract: Provided is a method for producing a seamless tube, in which after a starting material to be extruded has been heated to a heating temperature T [° C.] satisfying the relationship of Formula (1) or Formula (2) depending on the outside diameter d0 [mm] thereof, the starting material is hot extruded by providing a solid lubricating glass between the starting material to be extruded and a die, whereby a transverse flaw on the outer surface in the top portion of tube can be prevented when hot extrusion is performed by using a starting material for extrusion having low deformability at high temperatures. When d0

    Abstract translation: 本发明提供一种无缝管的制造方法,其中待挤出原料已经被加热至满足式(1)或式(2)的关系的加热温度T [℃],取决于外径 d0 [mm],通过在待挤出的起始材料和模具之间提供固体润滑玻璃来热原料,由此当热挤出为热挤压时,可以防止管顶部的外表面上的横向缺陷 通过使用在高温下具有低变形性的用于挤出的原料进行。 当d0 <200时,T@1250+1.1487×A-7.838×ln(t0 / t)-10.135×ln(d0 / d)。 。 。 (1); 当d0> = 200时,T@1219+1.1487×A-7.838×ln(t0 / t)-10.135×ln(d0 / d)。 。 。 (2),其中A = L / Vav×1000 [msec]。 Vav =(V0 + V0×rho)/ 2 [mm / sec],rho =(t0×(d0-t0))/(t×(dt)),t0:待挤出的原料壁厚[mm] d:挤出管的外径[mm],t:壁厚[mm],L:挤出方向的模具的接近部分的长度[mm],V0:冲头速度[mm / sec]。

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