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    Reaction injection molded article with threads and method of molding same
    7.
    发明授权
    Reaction injection molded article with threads and method of molding same 失效
    具有螺纹的反应注塑制品及其成型方法

    公开(公告)号：US4446185A

    公开(公告)日：1984-05-01

    申请号：US355456

    申请日：1982-03-08

    Applicant: Kenichi Waragai ,  Masao Gotoh ,  Hitoshi Yokono ,  Kazumi Iijima

    Inventor： Kenichi Waragai ,  Masao Gotoh ,  Hitoshi Yokono ,  Kazumi Iijima

    IPC: B29C33/14 ,  B29C44/12 ,  B29C67/24 ,  B29C70/68 ,  C08J9/34 ,  B32B3/24

    CPC classification number: C08J9/34 ,  B29C44/1271 ,  B29C70/68 ,  B29C33/14 ,  B29C67/246 ,  B29K2105/04 ,  B29L2023/00 ,  C08J2375/04 ,  Y10S264/83 ,  Y10S411/907 ,  Y10S411/908 ,  Y10T428/22 ,  Y10T428/24496 ,  Y10T428/24529 ,  Y10T428/24992 ,  Y10T428/249989

    Abstract: A reaction injection molded article formed with threads and a method of molding same, wherein threaded members, such as threaded inserts, helicoils, etc., are positioned in the cavity of a reaction injection mold, and molding material is injected into the cavity to form the threaded members into a unitary structure with a body of the reaction injection molded article. The threaded members are securedly held in place by a surface layer of relatively high density. The molding material is a mixture of an A liquid and a B liquid, the A liquid containing 100 weight parts of polyether polyol obtained by adding alkylene oxide to various kinds of alcohol or amine, 1-5 weight parts of a reaction promoting agent (catalyst) comprising tertiary amines, tin compounds, etc., 3-50 weight parts of water and a foaming agent, such as low boiling point alkylhalide, 1-5 weight parts of a foaming regulating agent, such as alkylene oxide denatured polydimethyl siloxane and 1-20 weight parts, if necessary, of pigment, dyestuff and filler, such as carbon black, diazo compound, silica, glass fiber, etc., and the B liquid containing 100-200 weight parts of MDI, TDI, crude MDI or crude TDI.

    Abstract translation: 形成有螺纹的反应注射成型制品及其成型方法，其中将螺纹构件（例如螺纹插入件，螺旋体等）定位在反应注射模具的空腔中，并将成型材料注入空腔中以形成 螺纹构件与反应注射成型制品的主体成整体结构。 螺纹构件通过相对高密度的表面层牢固地保持就位。 成型材料是A液和B液的混合物，A液含有100重量份通过将环氧烷加成到各种醇或胺中得到的聚醚多元醇，1-5重量份的反应促进剂（催化剂 ）包含叔胺，锡化合物等，3-50重量份的水和发泡剂，例如低沸点烷基卤，1-5重量份发泡调节剂，例如烯化氧改性的聚二甲基硅氧烷和1 -20重量份，如有必要，颜料，染料和填料如炭黑，重氮化合物，二氧化硅，玻璃纤维等，B液含100-200份MDI，TDI，粗MDI或粗品 TDI。

    Method of jointing pipes by friction welding
    8.
    发明授权
    Method of jointing pipes by friction welding 失效
    通过摩擦焊接接管的方法

    公开(公告)号：US4331280A

    公开(公告)日：1982-05-25

    申请号：US221369

    申请日：1980-12-30

    Applicant: Takao Terabayashi ,  Kenichi Waragai ,  Atsuya Kamada ,  Masaru Kobayashi ,  Izumi Ochiai ,  Yoiti Wakabayashi

    Inventor： Takao Terabayashi ,  Kenichi Waragai ,  Atsuya Kamada ,  Masaru Kobayashi ,  Izumi Ochiai ,  Yoiti Wakabayashi

    IPC: B23K20/12 ,  B23K20/14

    CPC classification number: B23K20/129

    Abstract: A method for jointing two pipes such as an aluminum pipe and a copper pipe by friction welding. The aluminum pipe is inserted into a bore of a ring made of a heat resistant material, the bore having a straight section and a tapered section continuous from the straight section. The copper pipe has a tapered end peripheral surface. The copper pipe is pressed at its tapered end, in a rotating state, against the end of the aluminum pipe so as to expand the latter. As a result, an ironing is effected on the aluminum pipe by the straight section of the bore of the ring, such that the aluminum pipe overlies the straight section of the copper pipe in close contact with the latter. Consequently, the tapered surface of the copper pipe is friction welded to corresponding portion of the aluminum pipe while the latter is being backed up by the tapered section of the bore of the ring.

    Abstract translation: 通过摩擦焊接连接铝管和铜管等两个管的方法。 铝管被插入到由耐热材料制成的环的孔中，该孔具有直的部分和与直线部分连续的锥形部分。 铜管具有锥形端外周面。 铜管在其锥形端部以旋转状态压在铝管的端部上，从而使其膨胀。 结果，通过环的孔的直线部分在铝管上进行熨烫，使得铝管与铜管的直线部分紧密接触。 因此，铜管的锥形表面摩擦焊接到铝管的相应部分，而后者由环的孔的锥形部分支撑。

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