Wax-flux composition containing alkylaryl sulfonic acid for soldering
    1.
    发明授权
    Wax-flux composition containing alkylaryl sulfonic acid for soldering 失效
    含有用于焊接的烷基芳基磺酸的蜡助剂组合物

    公开(公告)号:US3977916A

    公开(公告)日:1976-08-31

    申请号:US534618

    申请日:1974-12-20

    CPC classification number: B23K35/3613 B23K35/3612

    Abstract: Wax-flux compositions for use in low-temperature soldering processes comprise (A) a major amount of a wax and (B) an effective amount to cause fluxing, at or below the soldering temperature of the piece to be soldered, of a wax-soluble alkylaryl sulfonic acid. A process for soldering electrical components to a printed circuit board comprises (A) applying a molten wax-flux composition as described above to the metal pattern side of the board, (B) allowing the wax-flux composition to solidify, (C) trimming the component leads, and (D) soldering the components to the printed circuit board.

    Abstract translation: 用于低温焊接工艺的蜡 - 助焊剂组合物包括(A)主要量的蜡和(B)在待焊接件的焊接温度下或低于待焊接件的焊接温度下产生助熔剂的有效量, 可溶性烷基芳基磺酸。 用于将电气部件焊接到印刷电路板的工艺包括(A)将如上所述的熔融蜡 - 助熔剂组合物涂覆到板的金属图案侧,(B)使蜡 - 助熔剂组合物固化,(C)修整 组件引线,(D)将部件焊接到印刷电路板上。

    Piston engine having a phosphatized cylinder wall
    4.
    发明授权
    Piston engine having a phosphatized cylinder wall 失效
    活塞发动机具有磷化气缸壁

    公开(公告)号:US4614185A

    公开(公告)日:1986-09-30

    申请号:US727864

    申请日:1985-04-26

    Applicant: Richard C. Fox

    Inventor: Richard C. Fox

    Abstract: A method for constructing and breaking in piston engines includes applying an integral phosphate layer to the interior cylinder wall prior to the insertion of the piston into a cylinder. The invention includes the improved engine so constructed. The phosphate layer decreases oil consumption and improves piston ring seating in such an engine. The phosphatizing solution includes a zinc or manganese salt in phosphoric acid at a pH between about 2.5 and 4.

    Abstract translation: 在活塞发动机中构造和断裂的方法包括在将活塞插入气缸内之前,向内筒壁施加一体的磷酸盐层。 本发明包括如此构造的改进的发动机。 磷酸盐层可降低油耗并改善这种发动机中的活塞环座位。 磷酸化溶液包括在约2.5和4之间的磷酸中的锌或锰盐。

    Candle wicking
    7.
    发明授权
    Candle wicking 失效
    蜡烛芯吸

    公开(公告)号:US3940233A

    公开(公告)日:1976-02-24

    申请号:US534521

    申请日:1974-12-19

    CPC classification number: C11C5/006

    Abstract: A lead-free candle wick composition comprising a combustible wick and a stiffening agent is disclosed. The stiffening agent comprises a substantially wax-insoluble polymer or copolymer which has a Vicat softening point at least 2.5.degree.C. higher than the melting point of the candle wax and which depolymerizes or pyrolyzes to substantially completely combustible products at a temperature above said melting point and at or below the temperature of the candle flame.

    Abstract translation: 公开了一种包含可燃芯和加强剂的无铅烛芯组合物。 硬化剂包括基本上不溶于蜡的聚合物或共聚物,其维卡软化点高于蜡烛蜡的熔点至少2.5℃,并且在高于所述熔点的温度下解聚或热解成基本上完全可燃的产物 并处于或低于蜡烛火焰的温度。

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