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    HEAT TREATMENT OF CAST IRON
    44.
    发明专利
    HEAT TREATMENT OF CAST IRON 失效

    公开(公告)号：JPS62267413A

    公开(公告)日：1987-11-20

    申请号：JP10755286

    申请日：1986-05-13

    Applicant: SUMITOMO METAL IND

    Inventor： TSUBOUCHI KENJI ,  MASE TOSHIAKI ,  FUJII SATORU

    IPC: C21D5/00

    Abstract: PURPOSE:To improve the wear and heat check resistances of cast iron contg. a network eutectic carbide by heating the cast iron to a specified temp. and holding it. CONSTITUTION:Cast iron contg. a network eutectic carbide is heated to the solidus line temp. - the solidus line temp. + 80 deg.C and held for about 1-100hr. The cast iron is preferably held at the solidus line temp. + 30 deg.C - the solidus line temp. + 50 deg.C for about 5-20hr. By the heat treatment, the shape of the network eutectic carbide is changed and the wear and heat check resistances are improved.

    COLD ROLLING METHOD FOR STEEL STRIP
    45.
    发明专利
    COLD ROLLING METHOD FOR STEEL STRIP 失效

    公开(公告)号：JPS62158503A

    公开(公告)日：1987-07-14

    申请号：JP104386

    申请日：1986-01-07

    Applicant: SUMITOMO METAL IND

    Inventor： YAMAMOTO HIDEO ,  MASE TOSHIAKI

    IPC: C10M105/24 ,  B21B1/22 ,  C10N40/24

    Abstract: PURPOSE:To increase the amt. of a lubricating agent to be introduced, to prevent the deterioration in surface quality and to permit high-draft rolling by coating the lubricating agent consisting of alkali metal soap on a hot rolled steel strip without descaling the strip and subjecting the strip to skin pass rolling and cold rolling at limited drafts. CONSTITUTION:The alkali metal soap is the alkali metal soap of fatty acids obtainable from animal and vegetable oils and the hydrogenated oils of the animals and vegetable oils to which an oiliness agent such as fatty acid or wax, inorg. material such as talk or quicklime and antioxidant, rust preventive agent, etc. can be added. The coated amt. of such alkali metal soap prior to skin pass rolling is adequately 0.4-6.0% skin pass draft and the amt. of the powder to be supplied is enough with 25-50g/m . The cooling of rolling rolls is executed by providing holes of cylindrical, spiral, ladder or other shapes into the roll and passing a cooling medium such as water, alcohol or liquefied gas therein.

    MANUFACTURE OF COLD ROLLED PLATE OF HEXAGONAL METAL
    46.
    发明专利
    MANUFACTURE OF COLD ROLLED PLATE OF HEXAGONAL METAL 失效

    公开(公告)号：JPS613873A

    公开(公告)日：1986-01-09

    申请号：JP12358484

    申请日：1984-06-15

    Applicant: SUMITOMO METAL IND

    Inventor： KOIKE MASAO ,  MASE TOSHIAKI ,  HAYASHI YUTAKA

    IPC: C22F1/16 ,  C22F1/00 ,  C22F1/18

    Abstract: PURPOSE:To prevent a cold rolled plate of a hexagonal metal from causing fin cracking and surface cracking by carrying out hot rolling and the following cold rolling each at a specified temp. when the cold rolled plate is manufactured. CONSTITUTION:When the cold rolled plate of a hexagonal metal having superior corrosion resistance, specific strength and superior creep characteristics at high temp. such as Ti, Zr or Hf is manufactured, a blank is hot rolled at >=700 deg.C finishing temp. and the hot rolled plate is annealed and cold rolled at

    LUBRICANT FOR HOT PLASTIC WORKING
    48.
    发明专利
    LUBRICANT FOR HOT PLASTIC WORKING 失效

    公开(公告)号：JPS60135489A

    公开(公告)日：1985-07-18

    申请号：JP24320483

    申请日：1983-12-22

    Applicant: SUMITOMO METAL IND

    Inventor： FUJII SATORU ,  MASE TOSHIAKI

    IPC: C10M103/00 ,  C10M103/02 ,  C10N20/06 ,  C10N30/10 ,  C10N40/24 ,  C10N50/08 ,  C10N60/00 ,  C10N60/14 ,  C10N70/00

    Abstract: PURPOSE:To provide a powdered or granular lubricant for hot plastic working, which has an excellent lubricating effect, by coating graphite particle with an inorg. binder. CONSTITUTION:Graphite particle is coated with an inorg. binder such as boron oxide or boric acid to obtain the desired powdered or granular lubricant for hot plastic working. For example, the powdered lubricant can be obtd. by dispersing finely divided graphite particles in an aq. soln. of boron oxide, gradually, evaporating water with stirring to precipitate fine boron oxide particles dissolved in water on the outer surface of the graphite particle and further crushing the resulting particle into a particle having the desired particle size. The granular lubricant can be obtd. by molding the powdered lubricant into a granule. The inorg. binder such as boron oxide is used in a quantity of 5-40wt%. The resulting lubricant is suitable for use in hot pipe manufacturing particularly under severe friction conditions.

    Lubricant for hot processing
    49.
    发明专利
    Lubricant for hot processing 失效
    润滑剂热处理

    公开(公告)号：JPS59202295A

    公开(公告)日：1984-11-16

    申请号：JP7564283

    申请日：1983-04-28

    Applicant: Sumitomo Metal Ind Ltd

    Inventor： MASE TOSHIAKI ,  FUJII SATORU ,  IZAWA MASARU ,  HORA HIDEKI

    IPC: B21C23/32 ,  B21J3/00 ,  C10M169/04 ,  C10N30/06 ,  C10N30/08 ,  C10N40/24 ,  C10N50/08

    Abstract: PURPOSE: To provide a lubricant for hot processing exhibiting an excellent lubricating effect even in hot processing which involves a long contact time at a high temperature, prepared by mixing graphite with sulfur (compd.) having a sulfur content of a specified wt%.
    CONSTITUTION: The lubricant is prepared by mixing graphite with a particle diameter of about 1W200μm, such as flaky graphite, with sulfur or its compd. having a sulfur content of 0.5W20wt%. The sulfur (compd.) includes powdered sulfur, sodium benzenesulfonate and methyl mercaptan. When the lubricant is used, the component of a workpiece, e.g., Fe, reacts with sulfur in the lubricant to form a film of FeS (4) on frictional surfaces (2, 3) of a tool and the workpiece and FeS with a low shear resistance reduces friction on the frictional surfaces (2, 3) and prevents seizing of the frictional surface.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的：提供一种用于热处理的润滑剂，即使在通过将石墨与硫含量为特定重量％的硫（化合物）混合制备的热处理中也包括长时间接触时间的热加工中。 构成：润滑剂是通过混合约1-200μm的粒径石墨，如片状石墨，硫或其组合物制备的。 硫含量为0.5〜20重量％。 硫（化合物）包括粉末状硫，苯磺酸钠和甲硫醇。 当使用润滑剂时，工件（例如Fe）的组分与润滑剂中的硫反应，在工具的摩擦表面（2,3）上形成FeS（4）的膜，工件和FeS的含量低 剪切阻力降低摩擦表面（2,3）上的摩擦并且防止摩擦表面的卡住。

    Production of ferritic stainless steel plate
    50.
    发明专利
    Production of ferritic stainless steel plate 失效
    生产不锈钢不锈钢板

    公开(公告)号：JPS59133952A

    公开(公告)日：1984-08-01

    申请号：JP831183

    申请日：1983-01-21

    Applicant: Sumitomo Metal Ind Ltd

    Inventor： KOIKE MASAO ,  MASE TOSHIAKI ,  OGAWA YUTAKA

    IPC: C21C7/04 ,  B21B3/02 ,  B22D11/10 ,  B22D11/108 ,  B22D11/11

    CPC classification number: B22D11/11 ,  B21B3/02

    Abstract: PURPOSE:To make efficient and inexpensive mass production of a titled steel plate having high resistance to ridging by casting continuously a molten steel while adding a specific amt. of metallic powder having a specific grain size to the molten steel flow from a tundish, then subjecting successively the billet to hot rolling, annealing and cold rolling. CONSTITUTION:A molten steel is cast continuously while metallic powder having 5-3,000mu grain size is added at a rate of 0.1-5% by weight of the molten steel to the molten steel flow from a tundish thereby forming a continuously cast billet. The billet is subjected successively to hot rolling, annealing and cold rolling and is made into a steel plate. The stainless steel powder having the same component as the component of an intended ferritic stainless steel plate is preferably used for the metallic powder and the similar effect is obtainable as well by using carbon steel powder of a low cost.

    Abstract translation: 目的：通过连续铸造钢水，同时加入特定的amt，高效廉价地批量生产具有高抗皱性能的标准钢板。 对来自中间包的钢水流量具有特定晶粒尺寸的金属粉末，然后连续地对钢坯进行热轧，退火和冷轧。 构成：将钢水连续铸造，以0.5〜3,000μm粒径的金属粉末以钢水的0.1-5重量％的比例加入到来自中间包的钢水流中，从而形成连续铸造的坯料。 将坯料依次进行热轧，退火和冷轧，并制成钢板。 优选使用与期望的铁素体不锈钢板的成分相同的不锈钢粉末作为金属粉末，通过低成本的碳钢粉也可以得到同样的效果。

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