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    • 8. 发明授权
    • Device in cutting torches
    • 割炬装置
    • US4653731A
    • 1987-03-31
    • US830310
    • 1986-02-14
    • Gert BrodenGoran Haapanen
    • Gert BrodenGoran Haapanen
    • F23D14/42B23K7/00
    • F23D14/54F23D14/42
    • A device in a cutting torch which comprises a torch body with a valve housing and a nozzle and with a cutting oxygen duct, a heating oxygen duct and a combustion gas duct disposed in the torch, there being disposed in the torch a connection line which contains a throttling member between the heating oxygen duct and the cutting oxygen duct and wherein disposed in the cutting oxygen duct before the connection line is a valve member which permits a flow of heating oxygen to pass through the cutting oxygen duct only in the direction towards the orifice of the nozzle.The connection line between the heating oxygen duct and the cutting oxygen duct comprises at least one cooling oxygen duct (7) disposed in the nozzle which is elaborated with three sealing surfaces towards the torch body. The cooling oxygen duct (7) has a diameter which is so adapted in relation to the orifice diameter in the cutting oxygen duct of the nozzle and to the size of the heating flame that during heating of the workpiece a cooling oxygen pressure is rapidly built up in the cooling oxygen duct which prevents hot combustion gases from penetrating into the cutting oxygen ducts and that in the case of short nozzle distances to the workpiece the flow of cooling oxygen is prevented from becoming so great that the surface of the workpiece which is situated below the orifice of the cutting oxygen duct is cooled so rapidly that hole-piercing is rendered more difficult.
    • 一种切割炬中的装置,其包括具有阀壳体和喷嘴的割炬本体,并具有切割氧气管道,加热氧气管道和设置在炬管中的燃烧气体管道,其中设置有连接线,该连接线路包含 在加热氧气管道和切割氧气管道之间的节流构件,并且其中在连接线路之前设置在切割氧气管道中的是阀构件,阀构件仅允许加热氧气在朝向孔口的方向上通过切割氧气管道 的喷嘴。 加热氧气管道和切割氧气管道之间的连接线包括设置在喷嘴中的至少一个冷却氧气管道(7),该冷却氧气管道(7)被精加工成具有朝向割炬本体的三个密封表面。 冷却氧气管道(7)的直径相对于喷嘴的切割氧气管道中的孔口直径以及加热火焰的大小,在加热工件期间,冷却氧气压力迅速建立 在冷却氧气管道中,其防止热燃烧气体渗透到切割氧气管道中,并且在与工件的喷嘴距离短的情况下,防止冷却氧气流变得如此大,使得位于下方的工件的表面 切割氧气管的孔口被如此快速地冷却,使得穿孔更加困难。
    • 9. 发明授权
    • Multiple piece torch tip
    • 多件火炬头
    • US4200235A
    • 1980-04-29
    • US892971
    • 1978-04-03
    • Charles P. Monschke
    • Charles P. Monschke
    • B21C37/15F23D14/54B05B7/06
    • B21C37/153F23D14/54
    • A multiple piece torch tip and a method of making a multiple piece torch tip. The multiple piece torch tip comprises an inner piece disposed interchangeably within an outer piece. The inner surface of the outer piece has a plurality of regularly spaced slots which decrease in size radially outward and which combine with the smooth exterior of the inner piece to form preheat orifices. The method of making the multiple piece torch tip comprises a swaging step which in one step forms the outer piece. In the swaging step a tubular blank is swaged about a ribbed mandrel. The mandrel presents a monotonically decreasing radial cross-sectional area with respect to the blank for facilitating removal of the swaged outer piece without damage thereto. Also provided is a step of forming an inner piece of a size such that the inner surface of the outer piece and the outer surface of the inner piece combine to form preheat orifice configurations.
    • 多件割枪尖端和制作多件割枪尖的方法。 多件式割炬尖端包括可互换地设置在外部件内的内件。 外部件的内表面具有多个规则间隔开的狭槽,其尺寸径向向外减小,并且与内件的光滑外表组合以形成预热孔。 制造多件式割炬尖的方法包括在一个步骤中形成外部件的型锻步骤。 在型锻步骤中,管状坯料围绕肋状心轴模压。 心轴相对于坯件呈现单调递减的径向横截面积,以便于移除锻造外部件而不损坏其。 还提供了形成尺寸使得内件的内表面和内件的外表面组合以形成预热孔构造的内件的步骤。
    • 10. 发明授权
    • Flame cutting tip and torch holder
    • 火焰切割尖和火炬座
    • US4171124A
    • 1979-10-16
    • US923877
    • 1978-07-12
    • James A. CoulterRoland E. Hasselbacher
    • James A. CoulterRoland E. Hasselbacher
    • F23D14/42B23K7/10F23D14/54B23K7/00
    • B23K7/10F23D14/54
    • A holder for the assembly of a conventional flame cutting torch tip (14) which provides release of the tip, and can include water cooling (42-44) of the tip during machine cutting operations. Although such tips often become fouled, the prior art has not provided sufficiently quick release for replacement purposes. The tip is held in abutment against the torch by a plurality of cam (48) actuated clamping followers (56) which wedge against the shoulder (68) of the conventional flame cutting tip when the holder is in a clamping position. The cam is operated by rotating a spring-biased (26) actuating member, preferably a circumferential ring (22), the ring being rotatable between a clamping position and a releasing position, and normally being biased by said spring into the clamping position.
    • {PG,1 A用于组装常规火焰割炬尖端({b 14 {l))的支架,其提供尖端的释放,并且可以包括水冷却({b 42 {14 44 {l) 切割作业。 虽然这种提示通常被弄脏,但现有技术没有提供足够快的释放用于替换目的。 通过多个凸轮({b 48 {l})致动的夹紧随动件({b 56 {l))将尖端保持抵靠在割炬上,该夹紧从动件({b 56 {1))抵抗传统的火焰切割尖端的肩部({b 68 {l) 支架处于夹紧位置。 凸轮通过旋转弹簧偏压({b 26 {l)致动构件,优选圆周环({b 22 {l))来操作,环可在夹紧位置和释放位置之间旋转,并且通常被 弹簧进入夹紧位置。