Emulsion type liquid lubricant for metal forming, process for preparing
the lubricant and process for metal forming with the lubricant
    4.
    发明授权
    Emulsion type liquid lubricant for metal forming, process for preparing the lubricant and process for metal forming with the lubricant 失效
    用于金属成型的乳液型液体润滑剂,润滑剂的制备方法和用于金属成型的方法

    公开(公告)号:US4657685A

    公开(公告)日:1987-04-14

    申请号:US683639

    申请日:1984-12-19

    IPC分类号: C10M137/04 C10M161/00

    摘要: A substantially water-free, emulsion type liquid lubricant for metal forming which comprises:(a) a lubricating oil,(b) at least one of phosphoric acid esters represented by the general formula: ##STR1## wherein R is alkyl, alkylalkenyl or aryl; n is an integer of 1 to 2, and (c) an emulsifying agent,an average particle size of the phosphoric acid ester being 0.3 to 120 .mu.m, can form a lubricating film having distinguished heat resistance and lubricating properties by virtue of the heat generated by deformation and friction during the metal forming only by wetting the surface of a metallic workpiece or a die or both with the lubricant and work effectively for preventing galling, and thus parts with a high reduction of area or parts of complicated shapes can be readily formed.A lubricating film having a lubricating effect equivalent to that of the conventional phasphate film can be simply obtained, greatly contributing to reduction in product cost.An emulsion type liquid lubricant having a prolonged emulsion stability can be prepared through emulsification with a high speed mixer having a stirring blade with wiremesh-like fine perforations, and thus articles or parts with uniform quality can be formed.

    摘要翻译: 一种用于金属成形的基本上无水乳液型液体润滑剂,其包括:(a)润滑油,(b)至少一种由以下通式表示的磷酸酯:其中R是烷基,烷基烯基或芳基 ; n为1〜2的整数,(c)磷酸酯的平均粒径为0.3〜120μm的乳化剂可以形成具有出色的耐热性和润滑性的润滑膜 通过金属成形时的变形和摩擦而产生,仅通过用润滑剂润湿金属工件或模具或两者的表面,并且有效地起作用以防止磨损,因此可以容易地形成具有高的面积或复杂形状的部分的部件 形成。 可以简单地获得具有与常规磷酸盐膜相当的润滑效果的润滑膜,极大地有助于降低产品成本。 具有延长的乳液稳定性的乳液型液体润滑剂可以通过用具有丝网状细孔的搅拌叶片的高速混合机进行乳化来制备,因此可以形成具有均匀品质的制品或部件。

    Fiber-reinforced resin composition
    7.
    发明授权
    Fiber-reinforced resin composition 失效
    纤维增强树脂组合物

    公开(公告)号:US5612424A

    公开(公告)日:1997-03-18

    申请号:US292927

    申请日:1994-08-18

    摘要: A fiber-reinforced resin composition, which comprises:an epoxy resin having at least two epoxy groups in the molecule,a polymerizable unsaturated group-containing epoxy compound of the following general formula [I], ##STR1## wherein R.sup.1 is H or CH.sub.3, R.sup.2 is an alkylene group having 1 to 20 carbon atoms, and n is an integer of 0 to 20,a liquid carboxylic acid anhydride containing a monofunctional carboxylic acid anhydride and/or a polyfunctional carboxylic acid anhydride obtained by reacting a lower aliphatic polyhydric alcohol with a trimellitic acid or a derivative thereof,a curing promoter,a radical polymerization initiator, anda fiber,the glass transition temperature (Tg, .degree.C.) and breaking strain (E, %) of a cured product of said composition satisfying the following formulae:Tg.gtoreq.-17E+240E.gtoreq.4, andTg.gtoreq.125.

    摘要翻译: 一种纤维增强树脂组合物,其包含:分子中具有至少两个环氧基的环氧树脂,以下通式[I]的可聚合不饱和基团的环氧化合物,其中R1为H 或CH 3,R 2为碳原子数1〜20的亚烷基,n为0〜20的整数,含有单官能羧酸酐和/或多官能羧酸酐的液体羧酸酐通过使低级脂肪族 多元醇与偏苯三酸或其衍生物,固化促进剂,自由基聚合引发剂和纤维,所述组合物的固化产物的玻璃化转变温度(Tg,℃)和断裂应变(E,%) 满足以下公式:Tg> / = -17E + 240E> / = 4,Tg> 125。