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    Apparatus for refining molten metals and molten metal refining process
    14.
    发明授权
    Apparatus for refining molten metals and molten metal refining process 失效
    用于精炼熔融金属和熔融金属精炼工艺的设备

    公开(公告)号：US3918692A

    公开(公告)日：1975-11-11

    申请号：US45023474

    申请日：1974-03-11

    Applicant: UDDEHOLMS AB

    Inventor： OEBERG KARL ERIK

    IPC: C21C5/34 ,  C21B11/08 ,  C21B13/00 ,  C21C1/02 ,  C21C5/42 ,  C21C5/48 ,  C21C7/00 ,  F27B14/14 ,  F27D11/06

    CPC classification number: C21C7/0037 ,  C21B13/0013 ,  C21C1/02 ,  C21C5/42 ,  Y02P10/136

    Abstract: Apparatus suitable for injecting fluids, particularly suspensions of solids in gases, below the surface of a molten metal, e.g. in emulsion metallurgy, comprises a converter having a tuyere for injecting the fluid below the surface of the molten metal, and a heating zone, spaced away from the converter but in liquid communication with the converter at a level below the surface of the molten metal, the heating zone having a thinner lining than the converter and being heated by electric induction heating so that a temperature gradient can be set up between the heating zone and the converter to maintain the temperature of the molten metal in the converter. The apparatus can be used for desulphurisation or decarburization of steel, the reduction of reducible metal oxides by emulsion reduction, the introduction of alloying components or the introduction of endothermally reacting gases into molten metals.

    Abstract translation: 适用于在熔融金属表面下方注入流体，特别是气体中固体悬浮液的装置，例如， 在乳液冶金学中，包括具有用于将流体喷射到熔融金属表面下方的风口的转换器和与转换器间隔开但与转炉相液体连通的加热区，其位于熔融金属表面以下的水平处， 加热区具有比转炉更薄的衬里，并通过电感应加热加热，使得可以在加热区和转炉之间建立温度梯度，以保持熔融金属在转炉中的温度。 该装置可用于钢的脱硫或脱碳，通过乳液减少还原可还原金属氧化物，引入合金成分或将吸热反应气体引入熔融金属中。

    Decarburisation of chromium containing iron, cobalt or nickel based alloys
    15.
    发明授权
    Decarburisation of chromium containing iron, cobalt or nickel based alloys 失效
    含铬铁，钴或镍基合金的脱碳

    公开(公告)号：US3867136A

    公开(公告)日：1975-02-18

    申请号：US40385473

    申请日：1973-10-05

    Applicant: UDDEHOLMS AB

    Inventor： ERIKSSON LARS ANDERS ,  OBERG KARL-ERIK

    IPC: C21C7/068 ,  C21C5/32

    CPC classification number: C21C7/0685

    Abstract: In a process for decarburising stainless steel by blowing the molten steel with a mixture of oxygen together with steam and/or ammonia, blockage of gas inlet is avoided by passing the mixture of oxygen together with steam and/or ammonia through the inner section of a tuyere comprising at least two coaxial pipes and passing through the outermost section of the tuyere a gas e.g. oxygen and steam or oxygen and nitrogen, which undergoes an exothermal reaction when it contacts the molten alloy.

    Abstract translation: 在通过用氧气与蒸汽和/或氨的混合物吹入钢水来对不锈钢进行脱碳的方法中，通过将氧气混合物与蒸汽和/或氨通过其内部的一部分来避免气体入口的阻塞 所述风口包括至少两个同轴管，并且通过所述风口的最外部分，例如气体 氧气和蒸汽或氧和氮，当其接触熔融合金时，其经历放热反应。

    Conveyor
    16.
    发明授权
    Conveyor 失效
    输送带

    公开(公告)号：US3788459A

    公开(公告)日：1974-01-29

    申请号：US3788459D

    申请日：1972-06-16

    Applicant: UDDEHOLMS AB

    Inventor： HOLM K

    IPC: B08B3/02 ,  B08B3/04 ,  B65G47/29 ,  B65G25/04

    CPC classification number: B08B3/022 ,  B08B3/041 ,  B65G47/29

    Abstract: A conveyor is conveying ballbearing balls or the like without mutual contact through an apparatus for surface treatment as degreasing of the balls wtih a solvent. The conveyor comprises several stationary and movable support members, the latter being arranged between the stationary members and each member having surface which is inclining downwardly in the direction of transport. At least one of the movable support members is pivotably mounted so that its surface can alter its inclination to incline upwardly in the direction of transport. Spray guns are spraying solvent over a ball, which is rolling back and forth on the surface of the pivotably mounted member and the ball is thus treated on all sides.

    Abstract translation: 输送机通过用于表面处理的设备而不相互接触地传送滚珠球或类似物，作为溶剂的滚珠脱脂。 输送机包括多个固定和可移动的支撑构件，后者设置在固定构件和每个构件之间，其表面沿着运输方向向下倾斜。 可移动支撑构件中的至少一个可枢转地安装，使得其表面可以改变其倾斜度以沿输送方向向上倾斜。 喷枪将溶剂喷在一个球上，该球在可枢转安装的构件的表面上来回滚动，并且球在所有方面被处理。

    Method in the manufacture of stainless, hardenable chromium-steel strip and sheet
    17.
    发明授权
    Method in the manufacture of stainless, hardenable chromium-steel strip and sheet 失效
    不锈钢，不锈钢钢带和板材的制造方法

    公开(公告)号：US3660174A

    公开(公告)日：1972-05-02

    申请号：US3660174D

    申请日：1969-05-23

    Applicant: UDDEHOLMS AB

    Inventor： JAKENBERG KLAS-ERIK

    IPC: C21D8/02 ,  C21D9/18 ,  C22C39/14

    CPC classification number: C21D8/0205

    Abstract: There is provided a method of producing stainless, chromiumsteel sheet or strip having a high resistance to corrosion and an improved hardness, and which has a relatively high yield point / ultimate strength ratio in an unhardened state, the starting material used in the method being one of substantially a pearlite structure and in which the material is heated and worked at specific temperatures so as to break down the pearlite structure and transform said structure to one comprising finely-divided spheroidized carbides in a ferritic matrix.

    Abstract translation: 提供了一种生产耐腐蚀性和硬度提高的不锈钢，铬钢板或带材的方法，并且在未硬化状态下具有较高的屈服点/极限强度比，该方法中使用的起始材料 是基本上是珠光体组织中的一种，其中材料在特定温度下被加热和加工，以便分解珠光体结构，并将所述结构转变为包含铁素体基体中细碎的球化碳化物的结构。

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