HOT PRESS FORMED PRODUCT AND METHOD FOR PRODUCTION THEREOF
    1.
    发明公开
    HOT PRESS FORMED PRODUCT AND METHOD FOR PRODUCTION THEREOF 有权
    HEISSPRESSGEFORMTES PRODUKT UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号:EP1630244A4

    公开(公告)日:2006-08-09

    申请号:EP04729213

    申请日:2004-04-23

    Abstract: A hot press formed product being improved in corrosion resistance and in the adhesion of a coating film, which is produced by subjecting a zinc-based metal plated steel product to a hot press forming, and has a zinc-based metal plating layer containing and, formed thereon, a zinc oxide layer, wherein the uppermost zinc oxide layer has an average thickness of 2 mum or less; and a hot press formed product being excellent in corrosion resistance, the adhesion of a coating film, the resistance to corrosion after coating, and weldability, which has a basis steel plate (1) and, formed thereon, a layer (2) consisting essentially of an iron-zinc solid solution phase and, as the uppermost layer, a zinc oxide layer (3) having an average thickness of 5 mum or less, and has substantially no iron-zinc intermetallic compound phase, wherein the iron-zinc solid solution layer (2) and the zinc oxide layer (3) contain Al in a total amount of 0.5 g/m or less and/or contain Al oxides in a total amount of 5 mg/m or less in terms of Al.

    Abstract translation: 通过锌基电镀钢材的热压成型获得具有改善的耐腐蚀性和涂布时的涂层附着力的热压成型制品。 它具有包含铁 - 锌固溶相的锌基电镀层,并在其上形成氧化锌层。 作为最外层的氧化锌层的平均厚度为2μm以下。 具有良好的外观和优异的耐腐蚀性,涂层粘合性,后涂层耐腐蚀性和可焊性的热压成型制品具有基本上由基材钢板(1)上的铁 - 锌固溶相组成的层(2) )。 它还具有作为最上层的平均厚度最多为5μm的氧化锌层(3),但是其不具有大量的铁 - 锌金属间化合物相。 铁锌固溶体层(2)和氧化锌层(3)中所含的Al的总量为0.5g / m 2以下,和/或这些层中所含的Al氧化物的总量最多为 5 mg / m 2。

    РЕЗЬБОВОЕ СОЕДИНЕНИЕ ДЛЯ СТАЛЬНЫХ ТРУБ

    公开(公告)号:EA015144B1

    公开(公告)日:2011-06-30

    申请号:EA200970827

    申请日:2008-02-28

    Abstract: Резьбовоесоединениедлястальныхтруб, содержащеениппельи муфту, имеющееконтактнуюповерхность (30), включающуюрезьбовуючасть, инерезьбовуючастьконтактаметаллк металлу, характеризуетсягерметичностью, стойкостьюк истираниюи коррозионнойстойкостью, вчастности, кщелевойкоррозии. Контактнаяповерхностьпоменьшеймереодногоизниппеляи муфтыпокрытапервымслоем (34) гальваническогопокрытия, выполненнымизсплавамедии цинкаилиизсплавамеди, цинкаи M1, где M1 представляетсобойпоменьшеймереодинэлемент, выбранныйизолова, висмутаи индия. Произвольно, подстилающийслой 32 одногоилиобоихизслоя (32а) гальваническогопокрытияизникеляи слоя (32b) гальваническогопокрытияизмедии слоя (36) гальваническогопокрытияизсплаваоловаи М2, гдеМ2 представляетсобойодинилиболееэлементов, выбранныхизвисмута, индия, никеля, цинкаи меди, можетбытьсформированподпервымслоеми надним, соответственно. Твердоесмазочноепокрытие (38а) исмазочноепокрытие (38b) извязкойжидкостиилиполутвердогоматериалатакжеможетбытьсформированоповерхслоягальваническогопокрытиякаксмазочноепокрытие (38).

    8.
    发明专利
    未知

    公开(公告)号:DE602004021802D1

    公开(公告)日:2009-08-13

    申请号:DE602004021802

    申请日:2004-04-23

    Abstract: A hot press-formed article having improved corrosion resistance and coating adhesion when coated is obtained by hot press forming of a zinc-based plated steel material. It has a zinc-based plating layer comprising an iron-zinc solid solution phase and atop it a zinc oxide layer. The average thickness of the zinc oxide layer which is the outermost layer is at most 2 µm. A hot press-formed article having a good appearance and excellent corrosion resistance, coating adhesion, post-coating corrosion resistance, and weldability has a layer (2) consisting essentially of an iron-zinc solid solution phase atop a base material steel sheet (1). It also has a zinc oxide layer (3) with an average thickness of at most 5 µm as an uppermost layer, but it does not have a substantial amount of an iron-zinc intermetallic compound phase. The total amount of Al contained in the iron-zinc solid solution layer (2) and the zinc oxide layer (3) is at most 0.5 g/m 2 , and/or the total amount of Al oxides contained in these layers is at most 5 mg/m 2 .

    9.
    发明专利
    未知

    公开(公告)号:DE3230777A1

    公开(公告)日:1983-03-10

    申请号:DE3230777

    申请日:1982-08-19

    Abstract: A joint for used in connecting oil well casing and/or tubing and method of producing same are disclosed. The joint with improved metal-to-metal sealing properties as well as improved resistance to galling is made of an alloy steel containing 10% or more by weight of Cr and comprises a metal sealing portion and a threaded portion provided with an activating layer of a metal or an alloy selected iron, nickel, zinc, cobalt, copper, manganese, chromium and alloys thereof, and an electrodeposited layer of a metal or an alloy selected from iron, copper, zinc, chromium, nickel, and alloys thereof.

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