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    Ductile ultrahigh strength steel mainly consisting of quenched and tempered steel and a method of manufacturing the same
    1.
    发明授权
    Ductile ultrahigh strength steel mainly consisting of quenched and tempered steel and a method of manufacturing the same 失效
    主要包括淬火和冷却钢的超高强度钢及其制造方法

    公开(公告)号：US3632455A

    公开(公告)日：1972-01-04

    申请号：US3632455D

    申请日：1969-06-02

    Applicant: ISHIKAWAJIMA HARIMA HEAVY IND

    Inventor： NAKAMURA HAJIME

    IPC: B23K20/00 ,  B23K20/227 ,  B32B15/01 ,  C21D8/02 ,  C21D7/14

    CPC classification number: B32B15/015 ,  B23K20/227 ,  C21D8/0247 ,  C21D2251/02 ,  Y10S428/926 ,  Y10T428/12632 ,  Y10T428/12972

    Abstract: Ductile ultrahigh strength steel composed of multiple layers formed by combining quenched and tempered steel plates with nonferrous metal or nonferrous alloy plates whose modulus of elasticity is not higher than and whose percentage of elongation and rate of reduction of area are greater than those of the quenched and tempered steel and being characterized by extremely low diffusion of iron and carbon which are the principal components of the steel and the wetting phenomenon with the quenched and tempered steel, which steel product does not exhibit unstable fractures but retains suitable elongation and ductility and has a tensile strength of more than 180 kg./mm.2.

    Abstract translation: 通过将淬火和回火钢板与有色金属或非铁合金板组合而成的多层高伸缩性超高强度钢，其弹性模量不高于其伸长率和面积减少率，其比率大于淬火和 回火钢，其特征在于钢和碳的极低扩散是钢的主要成分和淬火回火钢的润湿现象，该钢产品不显示不稳定的裂缝，但保持适当的伸长率和延展性，并具有拉伸 强度超过180 kg./mm.2。

    Electrode composition and welding method for arc welding steel
    2.
    发明授权
    Electrode composition and welding method for arc welding steel 失效
    电弧焊钢组成及焊接方法

    公开(公告)号：US3911244A

    公开(公告)日：1975-10-07

    申请号：US46217074

    申请日：1974-04-18

    Applicant: ISHIKAWAJIMA HARIMA HEAVY IND

    Inventor： NAKAMURA HAJIME ,  OHTA ICHIRO

    IPC: B23K35/30 ,  B23K35/24 ,  B23K35/362

    CPC classification number: B23K35/3053

    Abstract: A wire electrode for use in arc welding comprising a metal to be deposited on a substrate and further comprising a flux, said flux comprising: 1. A magnesium-aluminum alloy having an aluminum content of 20 to 80 percent, said alloy present in said flux in the amount of 5 to 35 percent by weight; 2. Calcium fluoride present in said flux in the amount of 30 to 80 percent based on the weight of said flux; 3. Hematite present in said flux in an amount of 3 to 30 percent by weight; 4. Silica and/or manganese in an amount less than 10 percent based on the weight of said flux; 5. Titanium in an amount less than 1.00 percent, based upon the weight of said flux; 6. Zirconium present in said flux from 0.005 to 0.200 weight percent, based on the weight of said flux; and 7. Boron in an amount less than 0.060 weight percent, based upon the weight of said flux.

    Abstract translation: 一种用于电弧焊接的线电极，包括要沉积在衬底上并进一步包括焊剂的金属，所述焊剂包括：

    Electrode holder for continuous submerged self-arc welding
    4.
    发明授权
    Electrode holder for continuous submerged self-arc welding 失效
    用于连续自动焊接的电极支架

    公开(公告)号：US3652822A

    公开(公告)日：1972-03-28

    申请号：US3652822D

    申请日：1970-06-18

    Applicant: ISHIKAWAJIMA HARIMA HEAVY IND

    Inventor： NAKAMURA HAJIME

    IPC: B23K9/14 ,  B23K9/28 ,  B23K33/00 ,  B23K9/18

    CPC classification number: B23K9/145 ,  B23K9/28 ,  B23K33/004

    Abstract: A contact member holder for continuous submerged self-arc welding in which the contact member is movably mounted so as to press against a welding electrode when extended and to move away from the welding electrode when a trigger wire positioned forwardly of the electrode is burnt out by the welding heat.

    Abstract translation: 一种用于连续浸没式自电弧焊接的接触构件保持器，其中接触构件可移动地安装成当延伸时压靠焊接电极并且当位于电极前方的触发器线被烧毁时从焊接电极移开 焊接热。

    8.
    发明专利
    未知

    公开(公告)号：DE1458420A1

    公开(公告)日：1968-12-19

    申请号：DE1458420

    申请日：1964-11-30

    Applicant: ISHIKAWAJIMA HARIMA HEAVY IND

    Inventor： NAKAMURA HAJIME

    IPC: C21D8/00 ,  C21D8/02 ,  C22C38/00 ,  C21D7/00

    Abstract: A steel containing C 0.08-0.3%; Si 0.02-0.6%; Mn 0.5-2.5%; N less than 0.045%, the whole or part of which is bound to Al to give an AlN content of 0.03-0.12% and the rest if any of which is bound to less than 0.2% Nb or less than 0.12% Ti Cr 0.1-1, Mo 0.05-1, Cu 0.05-1, V 0.005-0.3, B 0.0005-0.01; Fe the balance, is hot worked with a starting temperature not above 1200 DEG C. and a finishing temperature not below 700 DEG C. and is given at least a 20% reduction in one or more passes below 1000 DEG C.

    10.
    发明专利
    未知

    公开(公告)号：DE1615322B1

    公开(公告)日：1972-03-23

    申请号：DEI0033054

    申请日：1967-02-22

    Applicant: ISHIKAWAJIMA HARIMA HEAVY IND

    Inventor： NAKAMURA HAJIME

    IPC: B23K9/18 ,  B23K35/362

    Abstract: 1,200,381. Welding by fusion. ISHIKAWAJIMA - HARIMA JUKOGYO K.K. 14 June, 1967 [25 June, 1966], No. 27456/67. Heading B3R. [Also in Division C7] In consumable electrode arc seam-welding using a flux containing fluorides, the fluorides are supplied separately from the other fluxing constituents to the bottom of the welding groove and are covered by a layer of neutral or weakly acidic flux, the proportions and constituents being selected so that the slag produced on the upper surface of the weld contains 0À13-0À35 mols. per cent of fluoride and has a basicity between - 0À5 and + 1À25. The basicity is derived from the sum of a number of terms, each being the mols. of an oxide constituent multiplied by a constant, the constants being as follows: The fluides may be supplied as a separate layer in the bottom of the groove, a coating 3, Fig. 1b on a filler wire lying in the groove 2 or as the core 3, Fig. 1c, of a filler wire fed into the groove beneath the electrode 5. Submerged arc welding or gas-shielded welding with carbon dioxide, helium or argon may be used. Many examples of workpieces, fluxes and weld deposits are specified.

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