METHOD FOR TREATING AND PHOSPHATIZING METAL BOARD WITHOUT USING ACID

    公开(公告)号:US20210123113A1

    公开(公告)日:2021-04-29

    申请号:US17079621

    申请日:2020-10-26

    Abstract: A method for treating and phosphatizing a metal board without using acid includes the following steps: performing a degreasing step to remove grease and dirt from a surface of the metal board with a degreasing agent; performing a blast-peening step by blasting and peening polygon blast-peening granules on the metal board through a centrifugal impeller to remove an oxidized layer; performing a washing step to clean remaining powders from the metal board after the blast-peening step; performing a phosphatizing step to form a protective phosphate coating on the metal board; performing another washing step to wash off remaining phosphatizing agents from the metal board; performing a rustproofing step to apply a rustproofing agent on the metal board; and performing a drying step to dry the metal board.

    Joint for steel pipe having high galling resistance and surface
treatment method thereof
    6.
    发明授权
    Joint for steel pipe having high galling resistance and surface treatment method thereof 失效
    具有高耐磨性的钢管接头及其表面处理方法

    公开(公告)号:US6027145A

    公开(公告)日:2000-02-22

    申请号:US809344

    申请日:1997-05-23

    Abstract: An object of the present invention is to provide galling resistance to a threaded joint used for an oil well pipe. On a thread portion and a metallic sealing portion of the joint, there is provided a manganese phosphate chemical formation coating layer, or alternatively there are provided a nitriding layer of 1 to 20 .mu.m thickness and a manganese phosphate chemical formation coating layer of 5 to 30 .mu.m thickness, and also there is coated a solid lubricant which contains powder of molybdenum disulfide or tungsten disulfide and also contains one of epoxy resin, furan resin and polyamide resin as an essential component, and a ratio of composition is maintained at a specific value, so that a solid lubricant coating layer of 10 to 45 .mu.m thickness can be formed by heating.Due to the above surface treatment, even when the frequency of repetition of fastening and unfastening of the joint is increased, the occurrence of galling can be prevented over a long period of time.

    Abstract translation: PCT No.PCT / JP95 / 02034第Sec。 371日期1997年5月23日 102(e)日期1997年5月23日PCT提交1995年10月4日PCT公布。 公开号WO96 / 10710 PCT 日本1996年4月11日本发明的目的在于提供耐油性,用于油井管用螺纹接头。 在接头的螺纹部分和金属密封部分上,设置有磷酸锰化学成膜涂层,或者设置有1〜20μm厚的氮化层和5〜 并且还涂覆了含有二硫化钼或二硫化钨粉末的固体润滑剂,并且还含有环氧树脂,呋喃树脂和聚酰胺树脂之一作为必需组分,并且组成比保持在特定的 值,可以通过加热形成10〜45μm厚的固体润滑剂涂层。 由于上述表面处理,即使当接头的紧固和松开的重复频率增加时,也可以长时间地防止磨损的发生。

    Nickel-free phosphating process
    7.
    发明授权
    Nickel-free phosphating process 失效
    无镍磷化工艺

    公开(公告)号:US5792283A

    公开(公告)日:1998-08-11

    申请号:US612925

    申请日:1996-03-06

    CPC classification number: C23C22/44 C23C22/182 C23C22/364

    Abstract: A process for phosphating surfaces of steel, galvanized or alloy-galvanized steel, aluminum, aluminized or alloy-aluminized steel. The process is particularly useful for treating metal surfaces which are to be cathodic electrocoated. The process uses a nickel, cobalt, copper, nitrite and oxo-anion of halogen free phosphating solution containing 0.3 to 2.0 g/l Zn(II), 0.3 to 4 g/l Mn(II), 5 to 40 g/l phosphate ions and at least one of 0.5 to 5 g/l hydroxylamine and 0.2 to 2 g/l m-nitrobenzene sulfonate wherein the ratio by weight of Zn(II) to Mn(II) is not greater than 2.

    Abstract translation: PCT No.PCT / EP94 / 02848 Sec。 371日期1996年3月6日 102(e)1996年3月6日PCT PCT 1994年8月29日PCT公布。 公开号WO95 / 07370 日期1995年3月16日钢,镀锌或合金镀锌钢,铝,镀铝或合金镀铝钢表面磷化处理。 该方法对于处理要被阴极电涂覆的金属表面特别有用。 该方法使用含0.3〜2.0g / l Zn(II),0.3〜4g / l Mn(II),5〜40g / l磷酸盐的无卤磷酸盐溶液的镍,钴,铜,亚硝酸盐和氧阴离子 离子和0.5至5g / l羟胺和0.2至2g / l间硝基苯磺酸盐中的至少一种,其中Zn(II)与Mn(II)的重量比不大于2。

    Pretreatment method for coating on molded metal article
    8.
    发明授权
    Pretreatment method for coating on molded metal article 失效
    用于在模制金属制品上涂覆的预处理方法

    公开(公告)号:US5780122A

    公开(公告)日:1998-07-14

    申请号:US760459

    申请日:1996-12-06

    CPC classification number: C23C22/73

    Abstract: A solution which is stored in a treatment bath is stirred by vibration stirring means provided in the treatment bath in a range of receiving a metal molded article or around a substantially horizontal surface of the metal molded article so that mean acceleration a expressed in the following equation is at least 8 cm/sec.sup.2 : ##EQU1## where X, Y and Z, which are in units of cm/sec.sup.2, represent average acceleration values of flow rate changes within 60 seconds, measured simultaneously in three axial directions of X, Y and Z which are perpendicular to each other at a measuring position.

    Abstract translation: 将储存在处理槽中的溶液在接收金属模制品的范围内或处于金属模制品的基本水平的表面的范围内,通过设置在处理槽中的振动搅拌装置进行搅拌,使得以下述式 至少8cm / sec2:其中X,Y和Z以cm / sec2为单位,表示在X,Y的三个轴向上同时测量的60秒内的流量变化的平均加速度, Z在测量位置处彼此垂直。

    Composition and process for treating magnesium-containing metals and
product therefrom
    9.
    发明授权
    Composition and process for treating magnesium-containing metals and product therefrom 失效
    用于处理含镁金属及其制品的组合物和方法

    公开(公告)号:US5645650A

    公开(公告)日:1997-07-08

    申请号:US637635

    申请日:1996-04-29

    CPC classification number: C23C22/18

    Abstract: The present invention produces a highly corrosion-resistant, highly rust-inhibiting, and strongly paint-adherent conversion coating on the surface of magnesium-containing metals, and does so rapidly and at relatively low temperatures, using a substantially chromium-free conversion treatment bath.

    Abstract translation: PCT No.PCT / US94 / 12193 Sec。 371日期:1996年4月29日 102(e)日期1996年4月29日PCT 1994年10月27日PCT公布。 公开号WO95 / 12010 日期1995年5月4日本发明在含镁金属的表面上产生高度耐腐蚀,高度防锈和强烈的涂漆粘附转化膜,并且在相对较低的温度下快速并且使用基本上铬 - 免费转换治疗浴。

    Moderate temperature manganese phosphate conversion coating composition
and process
    10.
    发明授权
    Moderate temperature manganese phosphate conversion coating composition and process 失效
    适度温度磷酸锰转化涂料组成及工艺

    公开(公告)号:US5595611A

    公开(公告)日:1997-01-21

    申请号:US601481

    申请日:1996-02-14

    CPC classification number: C23C22/18 C23C22/364

    Abstract: An aqueous solution of manganese phosphate and phosphoric acid, preferably with little or no content of any material conventionally recognized as an accelerator or of any divalent metal ions other than manganese and iron, forms a good quality paint undercoating phosphate conversion coating on metal substrates, particularly on steel and galvanized steel substrates, when contacted by spraying or immersion with the substrates at a temperature of 54.degree.-65.degree. C. for a time of 2-5 minutes.

    Abstract translation: 尤其是磷酸锰和磷酸的水溶液,优选很少或没有任何通常被认为是促进剂的材料或任何非锰和铁以外的任何二价金属离子的物质,特别是在金属基材上形成了优质漆底漆磷酸盐转化涂层 在钢和镀锌钢基材上,当在54-65℃的温度下通过喷涂或浸渍与基材接触2-5分钟的时间。

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