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公开(公告)号：US3821842A
公开(公告)日：1974-07-02
申请号：US28683372
申请日：1972-09-06
Applicant: ASEA AB
CPC classification number: B23K20/028 , B21F15/02 , Y10T29/49888 , Y10T29/49982 , Y10T29/49986
Abstract: In drawing wire of compound material with a core of aluminum and a casing of copper, in order to join two wire ends for continuous drawing, the copper close to the end of the wires is removed, and the adjacent portion is tapered downwardly. The two ends are then butt-pressure welded and the burr is cut off. The exposed area of aluminum at the burr and the adjacent parts of the wire are then provided by sputtering with a metallic material of good malleability and good electrical conductivity such as silver or gold.
Abstract translation: 在复合材料用铝芯和铜套管拉丝的情况下，为了连接两个电线端部进行连续拉拔，电线末端的铜线被去除，相邻部分向下锥形。 然后将两端对接焊接，并将毛刺切断。 然后通过溅射，以良好的延展性和良好的导电性的金属材料（例如银或金）提供毛刺和相邻部分的铝的暴露区域。
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公开(公告)号：US3829261A
公开(公告)日：1974-08-13
申请号：US35648673
申请日：1973-05-02
Applicant: ASEA AB
CPC classification number: B22F3/1258 , B22F3/15
Abstract: In isostatic hot pressing of powder in a collapsible container, the powder is enclosed in a container which is provided with one or more evacuation openings, and a conical support is held in position adjacent the evacuation openings. A funnel-shaped body of sheet metal is secured above the support and the evacuation openings by welding its edge to the wall of the container. The body is evacuated through a suction tube connected to the funnel and the tube is sealed. Thereafter the container is subjected to heat and pressure, and the funnel-shaped member collapses into engagement with the conical support.
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公开(公告)号：US3736360A
公开(公告)日：1973-05-29
申请号：US3736360D
申请日：1971-10-27
Applicant: ASEA AB
CPC classification number: B22F3/1007 , B22F3/10 , B22F2201/20 , B22F2203/03 , C04B35/56 , G05D16/202
Abstract: A control system for an electrically heated furnace for sintering powder bodies, especially bodies of hard metal, has a vacuum pump connected to the interior of the furnace chamber by a suction conduit. The furnace includes a plurality of heating elements for different zones, a temperature sensitive instrument for each zone and a controlled measuring instrument for one of the zones which is the master zone. These instruments are connected to a master regulator for the furnace and slave regulators for the individual zones. A throttle valve in the vacuum conduit, or a controlled tap connected to the vacuum conduit, make it possible to keep the pressure in the furnace constant despite the fact that the pump runs at a constant speed. A pressure-sensing member connected to the vacuum conduit is also connected to the regulators for the heating elements.
Abstract translation: 用于烧结粉末体，特别是硬质金属体的电加热炉的控制系统具有通过抽吸管连接到炉室内部的真空泵。 炉子包括用于不同区域的多个加热元件，用于每个区域的温度敏感仪器和用于作为主区域的区域之一的受控测量仪器。 这些仪器连接到用于各个区域的炉和从调节器的主调节器。 真空管道中的节流阀或连接到真空管道的受控分接器使得可以将炉中的压力保持恒定，尽管泵以恒定的速度运行。 连接到真空管道的压力感测构件也连接到用于加热元件的调节器。
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