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    Method for restoring the functionality of equipment subjected to heavy corrosion in a plant for the production of urea
    26.
    发明授权
    Method for restoring the functionality of equipment subjected to heavy corrosion in a plant for the production of urea 失效
    用于恢复用于生产尿素的设备遭受严重腐蚀的设备的功能性的方法

    公开(公告)号：US6010669A

    公开(公告)日：2000-01-04

    申请号：US793928

    申请日：1997-03-21

    Applicant: Cesare Miola ,  Franco Granelli

    Inventor： Cesare Miola ,  Franco Granelli

    IPC: B01J3/00 ,  B01J3/04 ,  B01J19/00 ,  B01J19/02 ,  B23K31/02 ,  B23P6/00 ,  C07C273/04

    CPC classification number: C07C273/04 ,  B01J19/0073 ,  B01J19/02 ,  B01J3/04 ,  B01J3/048 ,  B23P6/00 ,  B01J2219/00256 ,  B01J2219/0236 ,  B01J2219/185 ,  B01J2219/1943 ,  B23K2201/12 ,  Y02P20/142 ,  Y02P20/149 ,  Y02P20/582

    Abstract: A method for repairing and restoring the functionality of equipment subjected to internal corrosion during its operation at high or medium pressure in a plant for the synthesis of urea. The method includes the cleaning of the corroded area, the formation of suitable supporting and/or holding surfaces for the placement of a new metallic lining, the formation of a new anticorrosive sealed off lining, obtained by positioning and welding flat elements and metallic plates which are suitably shaped and placed next to each other to become adapted to the internal profile of the equipment. The spaces and interstices below this new lining all communicate with at least one weep-hole present in the pressure resistant body. The entire repair is carried out through the manhole of the equipment and enables the restoring of its functionality for times similar to the normal duration of corresponding newly constructed equipment.

    Abstract translation: PCT No.PCT / EP95 / 03539 Sec。 371日期1997年3月21日 102（e）1997年3月21日PCT PCT 1995年9月8日PCT公布。 出版物WO96 / 09136 日期1996年3月28日在用于合成尿素的设备中在高压或中压操作期间内部腐蚀的设备的功能性的修复和恢复方法。 该方法包括清洁被腐蚀区域，形成用于放置新的金属衬里的合适的支撑和/或保持表面，形成通过定位和焊接扁平元件和金属板获得的新的防腐密封衬 适当地成形并且彼此相邻放置以适应于设备的内部轮廓。 这个新衬里下面的空间和间隙都与耐压体中存在的至少一个排水孔相通。 整个修理通过设备的人孔进行，并使其功能恢复类似于相应的新建设备的正常持续时间。

    Method and apparatus for detecting surface contamination in a weld area
    27.
    发明授权
    Method and apparatus for detecting surface contamination in a weld area 失效
    用于检测焊接区域中表面污染的方法和装置

    公开(公告)号：US5925264A

    公开(公告)日：1999-07-20

    申请号：US843399

    申请日：1997-04-15

    Applicant: Elie E. Mouannes

    Inventor： Elie E. Mouannes

    IPC: B23K31/12 ,  B23K11/24

    CPC classification number: B23K31/12 ,  B23K2201/12

    Abstract: An apparatus/method for detecting contamination during welding is disclosed. In one embodiment, contamination is detected during the welding of overlapping metal portion used in the production of can bodies. The apparatus monitors the voltage supplied to a welding electrode during welding. When the voltage increases above a predetermined level, which may indicate the presence of contamination, the electrical energy is directed away from the welding roller before the rollers pass the area of contamination. The diverted electrical energy is directed to a short circuiting device, such as a parallel combination of silicon control rectifiers. As such, the electrical energy may be directed away from the welding rollers to prevent damage to the rollers.

    Abstract translation: 公开了一种用于检测焊接过程中污染的装置/方法。 在一个实施例中，在用于制造罐体的重叠金属部分的焊接期间检测到污染。 该装置监测在焊接期间提供给焊接电极的电压。 当电压增加到预定水平以上，这可以指示存在污染时，在辊通过污染区域之前，电能被指向远离焊接辊。 转向的电能被引导到诸如硅控制整流器的并联组合的短路装置。 因此，电能可以被指向远离焊接辊以防止损坏辊。

    Pressure vessel and method of manufacture thereof
    28.
    发明授权
    Pressure vessel and method of manufacture thereof 失效
    压力容器及其制造方法

    公开(公告)号：US5855293A

    公开(公告)日：1999-01-05

    申请号：US721829

    申请日：1996-09-27

    Applicant: Robert J. Slais

    Inventor： Robert J. Slais

    IPC: F16J13/00 ,  B23K20/12 ,  B60H1/32 ,  B65D6/32 ,  F25B43/00 ,  B65D6/00

    CPC classification number: F25B43/006 ,  B23K20/12 ,  B23K20/122 ,  B23K20/129 ,  B60H1/3229 ,  B23K2201/06 ,  B23K2201/12 ,  F25B2400/162 ,  Y10T29/49359 ,  Y10T29/49808 ,  Y10T29/49927

    Abstract: A pressure vessel suitable for use in an automotive air-conditioning system includes a cylindrical body (10, 40) including an annular wall (14, 44). The cylindrical body preferably includes an opposite closed end, an initially opened end (12, 42), and a closure member (20, 50) inserted into the open end of the cylindrical body. The closure member and the cylindrical body each have extensions or annular flanges (28, 58) which are spin welded together. The cylindrical body is fused to the closure member when the annular flange (28, 58) of the closure member is spin welded to an annular, outermost portion (18, 48) of the cylindrical body. The closure member and the cylindrical body are further locked together by inwardly rolling a portion of the annular wall into an annular groove (30, 60) and an outermost surface of the closure member.

    Abstract translation: 适用于汽车空调系统的压力容器包括包括环形壁（14,44）的圆筒体（10,40）。 圆筒体优选地包括相对的封闭端，最初敞开的端部（12,42）以及插入圆筒体的开口端的封闭构件（20,50）。 闭合构件和圆柱体各自具有旋转焊接在一起的延伸部或环形凸缘（28,58）。 当封闭构件的环形凸缘（28,58）旋转焊接到圆柱体的环形最外部分（18,48）时，圆柱体熔合到封闭构件。 封闭构件和圆柱体通过将环形壁的一部分向内滚动成环形槽（30,60）和封闭构件的最外表面而进一步锁定在一起。

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