Method for producing a steel pipe using a high density energy beam
    2.
    发明授权
    Method for producing a steel pipe using a high density energy beam 失效
    使用高密度能量束制造钢管的方法

    公开(公告)号:US5900079A

    公开(公告)日:1999-05-04

    申请号:US637452

    申请日:1996-04-25

    摘要: A method of producing a welded steel pipe which comprises: (a) forming a steel strip having two edges in a cylindrical form so that the two edges face each other; (b) preheating the two edges of the steel strip to a temperature of a melting point or less by applying a high frequency electric current to the two edges; (c) pressing the two edges of the steel strip towards each other by contact with squeeze rolls to form a joint portion including a joint line; (d) radiating a high density energy beam sufficient to fuse a full thickness of the steel strip to a portion adjacent to a squeeze point to weld the joint portion; and (e) controlling an upset by applying the squeeze rolls sufficiently to reduce weld defects.

    摘要翻译: 一种焊接钢管的制造方法,其特征在于,包括:(a)形成具有圆筒状的两个边缘的钢带,使得所述两个边缘彼此面对; (b)通过向两个边缘施加高频电流将钢带的两个边缘预热到熔点以下的温度; (c)通过与挤压辊接触将钢带的两个边缘彼此挤压以形成包括接合线的接合部分; (d)辐射足够的高密度能量束以将钢带的整个厚度熔合到与挤压点相邻的部分以焊接接头部分; 和(e)通过充分施加挤压辊来控制镦粗以减少焊接缺陷。

    Laser-welded steel pipe and method therefor
    3.
    发明授权
    Laser-welded steel pipe and method therefor 有权
    激光焊接钢管及其方法

    公开(公告)号:US6140601A

    公开(公告)日:2000-10-31

    申请号:US340355

    申请日:1999-06-28

    摘要: A laser welded steel pipe having a weld zone containing a steel pipe containing 0.01 to 0.2 weight % C, 1 weight % or less S, 0.05 to 2 weight % Mn and 6 weight % or less Mn. The weld zone has a melted and solidified metal structure containing carbon and oxygen which satisfy the following equations:(carbon weight %)(oxygen weight %).ltoreq.0.006for a steel pipe containing carbon in an amount of less than 0.2 weight %, and(oxygen weight %).gtoreq.0.02.A method for manufacturing a laser-welded steel pipe including producing an open pipe made from a hot-rolled steel strip with opposing edge portions facing each other by employing a formal roll, preheating the two edge portions, pressing the two edge portions to butt against each other by using squeeze rolls and welding the butted edge portions by irradiation with a laser beam to heat and melt the two edge portions.

    摘要翻译: 一种具有含有钢管的焊接区域的激光焊接钢管,其含有0.01〜0.2重量%的C,1重量%以下的S,0.05〜2重量%的Mn和6重量%以下的Mn。 焊接区域具有含碳和氧的熔融和固化的金属结构,其满足以下等式:对于含有小于0.2重量%的碳的钢管,(碳重量%)(氧重量%)<0.00 = 和(氧重量%)> / = 0.02。一种激光焊接钢管的制造方法,其特征在于,包括:制造由热轧钢带制成的开口管,所述开口管具有相对的边缘部分,通过使用正式辊彼此面对,预热所述两个 边缘部分,通过使用挤压辊挤压两个边缘部分彼此对接并且通过用激光束照射焊接对接边缘部分以加热和熔化两个边缘部分。

    Magnetic shield
    4.
    发明授权
    Magnetic shield 失效
    磁性屏蔽

    公开(公告)号:US5061685A

    公开(公告)日:1991-10-29

    申请号:US640693

    申请日:1991-01-14

    IPC分类号: G12B17/02 C23C30/00 H05K9/00

    CPC分类号: H05K9/0077 Y10S505/872

    摘要: A magnetic shield which comprises: a plurality of metallic cylinders connected to each other in the axial direction thereof, each of the plurality of cylinders having at one end thereof an engaging section for receiving an end of an adjacent metallic cylinder to be connected thereto; and a film of a composite oxide superconducting material containing a Cu.sub.x O.sub.y -radical, formed on the entire inner surface of each of the plurality of cylinders, including the inner surface of the engaging section thereof. The above-mentioned magnetic shield can easily be scaled up and has a high magnetic shielding effect.

    Method for manufacturing oxide superconducting article
    7.
    发明授权
    Method for manufacturing oxide superconducting article 失效
    氧化物超导制品的制造方法

    公开(公告)号:US5236892A

    公开(公告)日:1993-08-17

    申请号:US793224

    申请日:1991-11-08

    IPC分类号: H01L39/24

    摘要: A method for manufacturing a superconducting article, comprising the steps of: forming a first layer comprising a mixture of LnBa.sub.2 Cu.sub.3 O.sub.x and Ln.sub.2 BaC oxid, on the surface of a substrate, said Ln being an optional rare earth element; then locally and sequentially/heating and melting the first layer to locally and sequentially form a molten pool of the mixture of the first layer, and causing the molten pool of the first layer to locally and sequentially solidify, thereby arranging the a-b plane of the crystal of the mixture of the first layer in parallel with the surface of the substrate; then forming a second layer comprising a mixture of at least CuO and BaCuO.sub.2 on the surface of the first layer; and then melting the mixture of the second layer to cause the resultant melt of the mixture of the second layer to diffusion-react with Ln.sub.2 BaCu oxide, in the first layer so as to convert the first and second into a film of a superconducting substance comprising LnBa.sub.2 Cu.sub.3 O.sub.x, in which the a-b plane of the crystal thereof is arranged in parallel with the surface of the substrate; thereby manufacturing a superconducting article comprising the substrate and the film of the superconducting substance formed on the surface of the substrate.

    摘要翻译: 一种制造超导体的方法,包括以下步骤:在衬底的表面上形成包含LnBa2Cu3Ox和Ln2BaC氧化物的混合物的第一层,所述Ln是任选的稀土元素; 然后局部依次地加热和熔化第一层以局部并顺序地形成第一层混合物的熔池,并使第一层的熔池局部并依次固化,从而将晶体的ab平面 的第一层的混合物与衬底的表面平行; 然后在第一层的表面上形成包含至少CuO和BaCuO 2的混合物的第二层; 然后熔化第二层的混合物,使得第二层的混合物的所得熔体在第一层中与Ln2BaCu氧化物扩散反应,以将第一层和第二层转变成包含LnBa 2 Cu 3 O x的超导物质的膜 其中其晶体的ab平面与衬底的表面平行布置; 从而制造包含基板和形成在基板表面上的超导物质的膜的超导制品。

    Method for manufacturing an oxide superconducting article
    8.
    发明授权
    Method for manufacturing an oxide superconducting article 失效
    氧化物超导体制造方法

    公开(公告)号:US5200389A

    公开(公告)日:1993-04-06

    申请号:US782795

    申请日:1991-10-25

    IPC分类号: H01L39/24

    摘要: A method for manufacturing a superconducting article, comprising the steps of: forming a first layer comprising a mixture of LnBa.sub.2 Cu.sub.3 O.sub.x and Ln.sub.2 BaCuO.sub.x ' on the surface of a substrate, said Ln being an optional rare earth element; then forming a second layer comprising a mixture of at least CuO and BaCuO.sub.2 on the surface of the first layer; and then melting the mixture in the second layer to cause the resultant melt of the mixture in the second layer to diffusion-react with Ln.sub.2 BaCuO.sub.x ' in the first layer so as to convert the first and second layers into a film of a superconducting substance comprising LnBa.sub.2 Cu.sub.3 O.sub.x ; thereby manufacturing a superconducting article comprising the substrate and the film of the superconducting substance formed on the surface of the substrate.

    摘要翻译: 一种制造超导体的方法,包括以下步骤:在衬底的表面上形成包含LnBa2Cu3Ox和Ln2BaCuOx'的混合物的第一层,所述Ln是任选的稀土元素; 然后在第一层的表面上形成包含至少CuO和BaCuO 2的混合物的第二层; 然后在第二层中熔化混合物,使得第二层中的混合物的所得熔体在第一层中与Ln2BaCuOx'扩散反应,从而将第一层和第二层转变成包含LnBa2Cu3Ox的超导物质的膜 ; 从而制造包含基板和形成在基板表面上的超导物质的膜的超导制品。