公开(公告)号：CA2299419C

公开(公告)日：2003-11-18

申请号：CA2299419

申请日：1998-08-04

Applicant: INTEGRAN TECHNOLOGIES INC

Inventor： LEHOCKEY EDWARD M ,  PALUMBO GINO ,  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.

公开(公告)号：AU2002220411A1

公开(公告)日：2003-06-10

申请号：AU2002220411

申请日：2001-11-23

Applicant: INTEGRAN TECHNOLOGIES INC

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

IPC: C21D7/04 ,  C21D7/06 ,  C21D9/50 ,  C21D10/00 ,  C22F1/00 ,  C22F1/10

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

公开(公告)号：CA2410472A1

公开(公告)日：2001-11-29

申请号：CA2410472

申请日：2001-05-24

Applicant: INTEGRAN TECHNOLOGIES INC

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

IPC: B24C1/10 ,  B23P13/00 ,  C25C7/02 ,  H01M20060101 ,  H01M4/00 ,  H01M4/04 ,  H01M4/08 ,  H01M4/14 ,  H01M4/16 ,  H01M4/20 ,  H01M4/64 ,  H01M4/68 ,  H01M4/73 ,  H01M4/82 ,  H01M4/88 ,  H01M6/00 ,  H01M50/541 ,  H01M2/28

Abstract: A process for enhancing chemical stability, corrosion resistance and for improved adhesion characteristics is described for use on metal or metal-all oy non-consumable electrodes, current collectors or other metallic articles use d in electrochemical cells. The process includes peening of the article, optionally followed by an annealing treatment.

公开(公告)号：CA2466829C

公开(公告)日：2009-10-06

申请号：CA2466829

申请日：2001-11-23

Applicant: INTEGRAN TECHNOLOGIES INC

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

IPC: C22F1/10 ,  C21D7/04 ,  C21D7/06 ,  C21D9/50 ,  C21D10/00 ,  C22F1/00

Abstract: A surface treatment process for enhancing the resistance to intergranular corrosion and intergranular cracking of components fabricated from austeniti c Ni-Fe-Cr based alloys comprising the application of surface deformation to t he component, to a depth in the range of 0.01 mm to 0.5 mm, for example by high intensity shot peening below the recrystallization temperature, followed by recrystallization heat treatment, preferably at solutionizing temperatures. The surface deformation and annealing process can be repeated to further optimize the microstructure of the near-surface region. Following the final heat treatment, the process optionally comprises the application of further surface deformation (work) of reduced intensity, yielding a worked depth of between 0.005 mm to 0.01 mm, to impart residual compression in the near surface region to further enhance cracking resistance.

公开(公告)号：CA2466829A1

公开(公告)日：2003-06-05

申请号：CA2466829

申请日：2001-11-23

Applicant: INTEGRAN TECHNOLOGIES INC

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

IPC: C21D7/04 ,  C21D7/06 ,  C21D9/50 ,  C21D10/00 ,  C22F1/00 ,  C22F1/10

Abstract: A surface treatment process for enhancing the resistance to intergranular corrosion and intergranular cracking of components fabricated from austeniti c Ni-Fe-Cr based alloys comprising the application of surface deformation to t he component, to a depth in the range of 0.01 mm to 0.5 mm, for example by high intensity shot peening below the recrystallization temperature, followed by recrystallization heat treatment, preferably at solutionizing temperatures. The surface deformation and annealing process can be repeated to further optimize the microstructure of the near-surface region. Following the final heat treatment, the process optionally comprises the application of further surface deformation (work) of reduced intensity, yielding a worked depth of between 0.005 mm to 0.01 mm, to impart residual compression in the near surface region to further enhance cracking resistance.

公开(公告)号：AU6198201A

公开(公告)日：2001-12-11

申请号：AU6198201

申请日：2001-05-24

Applicant: INTEGRAN TECHNOLOGIES INC

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

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 microstructure 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 grain 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.

公开(公告)号：AU740002B2

公开(公告)日：2001-10-25

申请号：AU8620498

申请日：1998-08-04

Applicant: INTEGRAN TECHNOLOGIES INC

Inventor： LEHOCKEY EDWARD M ,  PALUMBO GINO ,  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.

公开(公告)号：WO0193347A3

公开(公告)日：2002-05-10

申请号：PCT/CA0100754

申请日：2001-05-24

Applicant: INTEGRAN TECHNOLOGIES INC

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

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

CPC classification number: H01M4/685 ,  H01M4/73

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 microstructure in the current collector and optionally by quenching to rapidly reduce the temperature to below approximately 80 DEG C. The process yields an improved microstructure consisting of a high frequency of special low SIGMA CSL grain 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.

Abstract translation: 对用于电化学电池（包括诸如铅酸电池）的蓄电池的连续制备方法制造的穿孔集电器描述了用于增强化学稳定性和耐腐蚀性的方法。 该方法依赖于使用从往复膨胀，旋转膨胀和冲孔组中选择的带材加工方法，以将实心金属带穿孔以形成网格或网格作为变形处理。 通过热处理快速连续地进行穿孔变形处理，以在集电器中获得再结晶的微观结构，并且任选地通过淬火将温度快速降低到低于约80℃。该方法产生由高的 特殊低SIGMA CSL晶界（> 50％）的频率，显示出显着提高的耐晶间腐蚀和开裂性。 在铅酸蓄电池中作为正栅极使用时，由固体铅合金带生产的穿孔集电器表现出优异的生长和腐蚀性能。

公开(公告)号：WO0191205A3

公开(公告)日：2002-05-10

申请号：PCT/CA0100753

申请日：2001-05-24

Applicant: INTEGRAN TECHNOLOGIES INC

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

IPC: B24C1/10 ,  B23P13/00 ,  C25C7/02 ,  H01M20060101 ,  H01M2/28 ,  H01M4/00 ,  H01M4/04 ,  H01M4/08 ,  H01M4/14 ,  H01M4/16 ,  H01M4/20 ,  H01M4/64 ,  H01M4/68 ,  H01M4/73 ,  H01M4/82 ,  H01M4/88 ,  H01M6/00

CPC classification number: H01M4/73 ,  H01M4/685 ,  Y10T29/10 ,  Y10T29/49108

Abstract: A process for enhancing chemical stability, corrosion resistance and for improved adhesion characteristics is described for use on metal or metal-alloy non-consumable electrodes, current collectors or other metallic articles used in electrochemical cells. The process includes peening of the article, optionally followed by an annealing treatment.

Abstract translation: 描述了用于增强化学稳定性，耐腐蚀性和改善粘合特性的方法，用于在电化学电池中使用的金属或金属合金非消耗性电极，集电体或其它金属制品。 该方法包括喷丸处理，随后进行退火处理。

公开(公告)号：EP1461470A4

公开(公告)日：2005-09-14

申请号：EP01989121

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.