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    METALLURGICAL PROCESS FOR MANUFACTURING ELECTROWINNING LEAD AND LEAD ALLOY ELECTRODES
    2.
    发明专利
    METALLURGICAL PROCESS FOR MANUFACTURING ELECTROWINNING LEAD AND LEAD ALLOY ELECTRODES 未知

    公开(公告)号：CA2299419A1

    公开(公告)日：1999-02-18

    申请号：CA2299419

    申请日：1998-08-04

    Applicant: INTEGRAN TECHNOLOGIES INC

    Inventor： PALUMBO GINO ,  LEHOCKEY EDWARD M ,  LIN PETER KENG-YU ,  LIMOGES DAVID L

    IPC: C22C11/00 ,  C22F1/00 ,  C22F1/12 ,  C25C7/02

    Abstract: Lead and lead-alloy anodes for electrowinning metals such as zinc, copper, lead, tin, nickel and manganese from sulfuric acid solutions, whereby the electrodes are processed by a repetitive sequence of cold deformation and recrystallization heat treatment, within specified limits of deformation, temperature and annealing time, to achieve an improved microstructure consisting of a high frequency of special low .SIGMA. CSL grain boundaries (i.e. 50 %). The resultant electrodes possess significantly improved resistance to intergranular corrosion, and yield (1) extended service life, (2) the potential for reduction in electrode thickness with a commensurate increase in the number of electrodes per electrowinning cell, and (3) the opportunity to extract higher purity metal product.

    THERMO-MECHANICAL TREATED LEAD ALLOYS
    3.
    发明专利
    THERMO-MECHANICAL TREATED LEAD ALLOYS 未知

    公开(公告)号：CA2468022A1

    公开(公告)日：2003-06-05

    申请号：CA2468022

    申请日：2001-11-26

    Applicant: INTEGRAN TECHNOLOGIES INC

    Inventor： GONZALEZ FRANCISCO ,  TOMANTSCHGER KLAUS ,  PALUMBO GINO ,  AUST KARL T ,  LIN PETER K ,  LIMOGES DAVID L

    IPC: C22C11/06 ,  C22F1/00 ,  C22F1/12 ,  H01M4/68 ,  C22C11/00

    Abstract: Recrystallized lead and lead alloy positive current collectors and connector s such as straps and lugs for use e.g. in lead acid batteries and electrowinni ng anodes, having an increased percentage of special grain boundaries in at lea st part of the microstructure, which have been provided by a process comprising of (i) cold or hot rolling or cold or hot extrusion or (ii) steps of deformi ng the lead or lead alloy, and subsequently annealing the lead or lead alloy. Either a single cycle of working and annealing can be provided, or a plurali ty of such cycles can be provided. The amount of deformation, the recrystallization time and temperature, and the number of repetitions of suc h steps are selected to ensure that a substantial increase in the population o f special grain boundaries is provided in the microstructure, to improve resistance to creep, intergranular corrosion and intergranular cracking of t he current collectors and connectors during battery service, and result in extended battery life and the opportunity to reduce the size and weight of t he battery.

    SURFACE TREATMENT OF AUSTENITIC Ni-Fe-Cr-BASED ALLOYS
    4.
    发明申请
    SURFACE TREATMENT OF AUSTENITIC Ni-Fe-Cr-BASED ALLOYS 审中-公开
    奥氏体Ni-Fe-Cr基合金的表面处理

    公开(公告)号：WO0190433A3

    公开(公告)日：2002-05-10

    申请号：PCT/CA0100752

    申请日：2001-05-24

    Applicant: INTEGRAN TECHNOLOGIES INC

    Inventor： LIMOGES DAVID L ,  PALUMBO GINO ,  LIN PETER K

    IPC: C21D7/06 ,  C21D9/50 ,  C22F1/10 ,  C22F3/00

    CPC classification number: C22F1/10 ,  C21D7/06 ,  C21D9/50 ,  C21D2221/10 ,  C21D2251/04 ,  C22F3/00

    Abstract: A surface treatment process for enhancing the intergranular corrosion and intergranular cracking resistance of components fabricated from austenitic Ni-Fe-Cr based alloys comprised of the application of surface cold work to a depth in the range of 0.01mm to 0.5mm, for example by high intensity shot peening, followed by recrystallization heat treatment preferably at solutionizing temperatures (>900C). The surface cold work and annealing process can be repeated to further optimize the microstructure of the near-surface region. Following the final heat treatment, the process can optionally comprise the application of surface cold work of reduced intensity, yielding a cold worked depth of 0.005mm to 0.01mm, in order further enhance resistance to cracking by rendering the near surface in residual compression.

    Abstract translation: 一种用于增强由奥氏体Ni-Fe-Cr基合金制成的部件的晶间腐蚀和晶间抗裂性的表面处理方法，其包括将表面冷加工应用于0.01mm至0.5mm范围内的深度，例如高 强度喷丸硬化，然后优选在溶解温度（> 900℃）下进行重结晶热处理。 可以重复表面冷加工和退火工艺，以进一步优化近表面区域的微观结构。 在最后的热处理之后，该方法可以任选地包括降低强度的表面冷加工的应用，产生0.005mm至0.01mm的冷加工深度，从而通过使近表面残留压缩而进一步提高抗裂性。

    THERMO-MECHANICAL TREATED LEAD ALLOYS
    5.
    发明申请
    THERMO-MECHANICAL TREATED LEAD ALLOYS 审中-公开
    热机械处理铅合金

    公开(公告)号：WO03046243A8

    公开(公告)日：2003-09-04

    申请号：PCT/US0144061

    申请日：2001-11-26

    Applicant: INTEGRAN TECHNOLOGIES INC

    Inventor： PALUMBO GINO ,  AUST KARL T ,  LIMOGES DAVID L ,  GONZALEZ FRANCISCO ,  TOMANTSCHGER KLAUS ,  LIN PETER K

    IPC: C22C11/00 ,  C22F1/12 ,  H01M4/68 ,  H01M4/82

    CPC classification number: C22F1/12 ,  C22C11/00 ,  H01M4/685 ,  H01M4/82

    Abstract: Recrystallized lead and lead alloy positive current collectors and connectors such as straps and lugs for use e.g. in lead acid batteries and electrowinning anodes, having an increased percentage of special grain boundaries in at least part of the microstructure, which have been provided by a process comprising of (i) cold or hot rolling or cold or hot extrusion or (ii) steps of deforming the lead or lead alloy, and subsequently annealing the lead or lead alloy. Either a single cycle of working and annealing can be provided, or a plurality of such cycles can be provided. The amount of deformation, the recrystallization time and temperature, and the number of repetitions of such steps are selected to ensure that a substantial increase in the population of special grain boundaries is provided in the microstructure, to improve resistance to creep, intergranular corrosion and intergranular cracking of the current collectors and connectors during battery service, and result in extended battery life and the opportunity to reduce the size and weight of the battery.

    Abstract translation: 重结晶的铅和铅合金正极集电器和连接器，例如带和凸耳，用于例如。 在铅酸蓄电池和电解冶金阳极中，在至少部分微观结构中具有增加的特殊晶界百分比，其通过包括（i）冷或热轧或冷或热挤压的方法提供，或（ii）步骤 使铅或铅合金变形，然后对铅或铅合金进行退火。 可以提供单个循环的加工和退火，或者可以提供多个这样的循环。 选择变形量，再结晶时间和温度以及这些步骤的重复次数以确保在微结构中提供特殊晶界的群体的显着增加，以改善耐蠕变，晶间腐蚀和晶间的抗性 在电池维修期间电流收集器和连接器的开裂，并延长了电池寿命，并有机会减小电池的尺寸和重量。

    PERFORATED CURRENT COLLECTORS FOR STORAGE BATTERIES AND ELECTROCHEMICAL CELLS, HAVING IMPROVED RESISTANCE TO CORROSION
    6.
    发明专利
    PERFORATED CURRENT COLLECTORS FOR STORAGE BATTERIES AND ELECTROCHEMICAL CELLS, HAVING IMPROVED RESISTANCE TO CORROSION 未知

    公开(公告)号：CA2410603A1

    公开(公告)日：2001-12-06

    申请号：CA2410603

    申请日：2001-05-24

    Applicant: INTEGRAN TECHNOLOGIES INC

    Inventor： LIN PETER K ,  TOMANTSCHGER KLAUS ,  PALUMBO GINO ,  LIMOGES DAVID L

    IPC: H01M4/74 ,  C22F1/12 ,  H01M20060101 ,  H01M4/68 ,  H01M4/73 ,  H01M4/82

    Abstract: A process for enhancing chemical stability and corrosion resistance is described for perforated current collectors made by continuous production processes for use in electrochemical cells, including storage batteries such as lead-acid batteries. The process relies on utilizing a strip processing method, selected from the group of reciprocating expansion, rotary expansion and punching, to perforate the solid metal strip to form a grid or mesh, as a deformation treatment. The perforation- deformation treatment is followed in rapid succession by a heat-treatment to obtain a recrystallized microstructu re in the current collector and optionally by quenching to rapidly reduce the temperature to below approximately 80 ~C. The process yields an improved microstructure consisting of a high frequency of special low .SIGMA. CSL gra in boundaries (> 50 %), exhibiting significantly improved resistance to intergranular corrosion and cracking. Perforated current collectors produced with this process from a solid lead-alloy strip exhibit superior growth and corrosion properties when employed as positive grids in a lead-acid battery.

    9.
    发明专利
    未知

    公开(公告)号：BR0117183A

    公开(公告)日：2004-11-03

    申请号：BR0117183

    申请日：2001-11-26

    Applicant: INTEGRAN TECHNOLOGIES INC

    Inventor： PALUMBO GINO ,  AUST KARL T ,  LIMOGES DAVID L ,  GONZALEZ FRANCISCO ,  TOMANTSCHGER KLAUS ,  LIN PETER K

    IPC: C22C11/06 ,  C22F1/00 ,  C22F1/12 ,  H01M4/68 ,  C22C11/00

    Abstract: Recrystallized lead and lead alloy positive current collectors and connectors such as straps and lugs for use e.g. in lead acid batteries and electrowinning anodes, having an increased percentage of special grain boundaries in at least part of the microstructure, which have been provided by a process comprising of (i) cold or hot rolling or cold or hot extrusion or (ii) steps of deforming the lead or lead alloy, and subsequently annealing the lead or lead alloy. Either a single cycle of working and annealing can be provided, or a plurality of such cycles can be provided. The amount of deformation, the recrystallization time and temperature, and the number of repetitions of such steps are selected to ensure that a substantial increase in the population of special grain boundaries is provided in the microstructure, to improve resistance to creep, intergranular corrosion and intergranular cracking of the current collectors and connectors during battery service, and result in extended battery life and the opportunity to reduce the size and weight of the battery.

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