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公开(公告)号：US4889324A
公开(公告)日：1989-12-26
申请号：US128597
申请日：1987-12-04
申请人： Denis A. Brosnan , James E. Whetsel , Richard E. Singer , Mark V. Samas , Michael D. Amos , David P. Kovarik
发明人： Denis A. Brosnan , James E. Whetsel , Richard E. Singer , Mark V. Samas , Michael D. Amos , David P. Kovarik
IPC分类号： B23K23/00
CPC分类号： B23K23/00
摘要： An improved thermite reaction containment vessel and method of using the same includes a filter assembly which serves to filter the gases evolving from the thermite reaction and reduce the amount of smoke, fume and the like by-products emitted. In one preferred embodiment the filter assembly comprises a primary filter and a secondary filter. An air gap may be provided between the primary and secondary filter so as to provide additional cooling of the gases before they enter the secondary filter. The invention further provides a remote electrical ignition system which is capable of igniting thermite reaction materials without the use of a starting material. The ignition system may include an ignition fuse having an aluminum core and an outer coating comprising palladium and ruthenium or hot wire.
摘要翻译： 改进的铝热反应容纳容器及其使用方法包括过滤器组件，其用于过滤从铝热反应产生的气体并减少烟雾，烟雾等副产物的排放量。 在一个优选实施例中，过滤器组件包括初级过滤器和次级过滤器。 可以在初级和次级过滤器之间提供气隙，以便在进入二次过滤器之前提供气体的附加冷却。 本发明还提供一种能够在不使用起始材料的情况下点燃铝热反应材料的远程电点火系统。 点火系统可以包括具有铝芯的点火保险丝和包含钯和钌或热丝的外部涂层。
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公开(公告)号：US4881677A
公开(公告)日：1989-11-21
申请号：US237080
申请日：1988-08-29
申请人： Michael D. Amos , Denis A. Brosnan , Mark V. Samas , Richard E. Singer , James E. Whetsel , David P. Kovarik
发明人： Michael D. Amos , Denis A. Brosnan , Mark V. Samas , Richard E. Singer , James E. Whetsel , David P. Kovarik
IPC分类号： B23K23/00
CPC分类号： B23K23/00
摘要： An improved thermite reaction containment vessel and method of using the same includes a crucible in which the exothermic material is contained and which is connected at its lower end via a tap hole to a weld chamber in which the parts to be welded are positioned. On top of the crucible is positioned a baffle assembly which includes a plurality of expansion chambers which allows the escaping gas to expand and be reduced in velocity. As the gases move from one expansion chamber to the next the gases change direction. The expansion, direction change and the large surface area of the baffle assembly allows the gases to slow and cool before being exhausted leaving behind molten metal spatter or flame and greatly reducing the amount of smoke exhausted since particulate matter is accumulated on the baffle interior surface. Several forms of baffle assembly are disclosed using inverted stacked metal cups. The baffle assembly may be used in conjucntion with a filter assembly and remote electrical ignition or without a filter assembly and conventional starting material, with such matrial being ignited through the top of the baffle assembly.
摘要翻译： 改进的铝热反应容纳容器及其使用方法包括坩埚，其中容纳放热材料，并且其坩埚的下端通过分接孔连接到待焊接部件所在的焊接室。 在坩埚的顶部设置有挡板组件，该挡板组件包括多个膨胀室，其允许逸出的气体膨胀并且减小其速度。 当气体从一个膨胀室移动到下一个膨胀室时，气体改变方向。 挡板组件的膨胀，方向改变和大的表面积允许气体在排出之前减缓和冷却，留下熔融金属飞溅物或火焰，并且大大减少了由于颗粒物质积聚在挡板内表面上而排出的烟雾量。 使用倒置的堆叠金属杯公开了几种形式的挡板组件。 挡板组件可以与过滤器组件和远程电气点火结合使用，或者不使用过滤器组件和常规的起始材料，其中这种材料通过挡板组件的顶部点燃。
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3.发明授权
公开(公告)号：US5171378A
公开(公告)日：1992-12-15
申请号：US784980
申请日：1991-10-30
IPC分类号： B23K23/00 , B23K35/34 , B23K103/10
CPC分类号： B23K23/00 , B23K35/34 , Y10S75/959
摘要： The invention provides a method and means of producing weld metal for use in joining two or more aluminum containing pieces. The method includes the steps of providing a novel mixture of reactants comprising silicon, a reducing agent, a metallic compound which is exothermically reduced by the reducing agent, and a filler metal that does not react with the metallic compound. The mixture of reactants is then exothermically reacted so as to form the weld metal for joining the metallic pieces. At least about 90 percent by weight of the weld metal is produced by the silicon and the filler metal and at least about 90 percent by weight of the weld metal has a chemical composition substantially similar to that of at least one of the metallic pieces being joined.
摘要翻译： 本发明提供一种用于连接两个或多个含铝块的焊接金属的制造方法和方法。 该方法包括提供包含硅，还原剂，还原剂放热还原的金属化合物和不与金属化合物反应的填料金属的反应物的新型混合物的步骤。 然后将反应物的混合物放热反应，以形成用于接合金属片的焊接金属。 焊接金属的至少约90重量％由硅和填料金属制成，并且焊接金属的至少约90重量％具有与被连接的至少一个金属片的化学组成基本相似的化学组成 。
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公开(公告)号：US4885452A
公开(公告)日：1989-12-05
申请号：US177076
申请日：1988-04-04
IPC分类号： B23K23/00
CPC分类号： B23K23/00
摘要： Exothermic reaction mixtures are economically ignited remotely and electrically without the use of a low ignition starting material by creating a predetermined spark gap within a matrix of such mixture and then impressing a high energy spark across the gap through the use of a capacitor discharge circuit. The mixture is contained in a graphite or ceramic vessel or crucible and is supported over a tap hole or runner by a fusible metal disk. The material of the vessel is preferably graphite which is electrically conductive. In one form of the invention, an insulated wire with a bare tip is positioned just below the top surface of the mixture and the tip spaced a predetermined distance from the wall of the vessel. The capacitor discharge circuit is then employed to fire a high energy spark through a matrix of the material across the gap formed between the wire and vessel to initiate the reaction. In another form the spark gap may be established in a small cylindrical cartridge containing the material. The cartridge may be positioned through a hole in the side wall of the mold just below or near the top of the exothermic material so that it can be filled with the material from the main body of the exothermic material.
摘要翻译： 放热反应混合物通过在这种混合物的基体内产生预定的火花隙然后通过使用电容器放电电路在间隙上施加高能量火花而远程和电动地经济地点燃，而不需要使用低点火起始材料。 该混合物包含在石墨或陶瓷容器或坩埚中，并通过可熔金属盘支撑在抽头孔或流道上。 容器的材料优选是导电的石墨。 在本发明的一种形式中，具有裸露尖端的绝缘线位于混合物的顶表面的正下方，并且尖端与容器壁隔开预定距离。 然后使用电容器放电电路通过材料的基质穿过形成在电线和容器之间的间隙来发射高能量火花，以引发反应。 在另一种形式中，可以在容纳材料的小圆柱形盒中建立火花间隙。 筒可以位于模具的侧壁中的孔中，位于放热材料的顶部正下方或附近，使得其可以从放热材料的主体填充材料。
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公开(公告)号：US4879452A
公开(公告)日：1989-11-07
申请号：US177075
申请日：1988-04-04
申请人： David P. Kovarik , Michael D. Amos
发明人： David P. Kovarik , Michael D. Amos
摘要： A self-contained and sealed package of exothermic welding material includes a cup-shape disposable ceramic container for such material which is closed at the top with a heat consumable cap. The bottom of the container includes a tap hole, the lower end of which is also closed with a formed cup-shape heat consumable disk. An insulated wire pair extends along an axial groove in the exterior of the container and through a radial groove through the lip of the cup beneath the cap. The end of the wire pair within the container has the insulation removed to form a spark gap which end extends at an angle away from the interior of the container and is embedded in the exothermic material. The ends of the wire pair outside the container have the insulation removed to a greater extent so that the wires can readily be bent and connected to power unit for generating a high energy spark at the gap. The package is mounted unopened on a seat on a refractory mold above a weld cavity which contains the parts to be welded and a hinged baffled mold cover closed. The wire pair having been bent to extend beneath the cover is connected to the spark generator. When the exothermic material is ignited the heat causes the package cap to be consumed and as the reaction proceeds the disk is consumed permitting the molten metal produced by the reaction to drop into the weld cavity. A major portion of the slag formed in the reaction remains in the ceramic container and is disposed of with the container while the refractory mold is reused.
摘要翻译： 放热焊接材料的独立封装封装包括用于这种材料的杯形一次性陶瓷容器，其在顶部用热消耗帽封闭。 容器的底部包括抽出孔，其下端也用形成的杯形的热消耗盘封闭。 绝缘电线对沿着容器外部的轴向槽延伸，并且穿过穿过帽下方的杯的唇缘的径向凹槽。 容器内的线对的端部已经去除了绝缘体以形成火花间隙，其端部以与容器内部成一定角度延伸并嵌入在放热材料中。 容器外部的线对的端部具有更大程度的去除绝缘，使得电线可以容易地弯曲并连接到功率单元，以在间隙处产生高能量的火花。 该包装未开封装在位于焊接腔上方的耐火模具上的座上，该焊接腔包含要焊接的部件和闭合的铰接挡板模具盖。 已经弯曲以延伸到盖下方的线对被连接到火花发生器。 当放热材料被点燃时，热会导致包装盖被消耗，并且随着反应进行，盘被消耗，允许由反应产生的熔融金属落入焊缝腔中。 在反应中形成的炉渣的主要部分保留在陶瓷容器中，并在耐火模具再次使用时与容器一起处理。
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