Abstract

A method of joining a first metal and a second metal is described. The first metal comprises Pb in an amount of at least 50 wt. % by weight of the first metal. The method comprises fusing the first metal and the second metal using non-consumable electrode arc welding.

IPC Classes  ?

• B23K 9/23 - Arc welding or cutting taking account of the properties of the materials to be welded

Abstract

A method of joining a first metal and a second metal is described. The first metal comprises Pb in an amount of at least 50 wt. % by weight of the first metal. The method comprises fusing the first metal and the second metal using non-consumable electrode arc welding.

IPC Classes  ?

• B23K 9/167 - Arc welding or cutting making use of shielding gas and of a non-consumable electrode
• B23K 9/16 - Arc welding or cutting making use of shielding gas
• B23K 35/26 - Selection of soldering or welding materials proper with the principal constituent melting at less than 400°C

Abstract

A method of joining a first metal and a second metal is described. The first metal comprises Pb in an amount of at least 50 wt.% by weight of the first metal. The method comprises fusing the first metal and the second metal using non-consumable electrode arc welding.

IPC Classes  ?

• B23K 35/00 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
• B23K 9/00 - Arc welding or cutting
• B23K 9/06 - Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
• B23K 9/167 - Arc welding or cutting making use of shielding gas and of a non-consumable electrode
• B23K 9/29 - Supporting devices adapted for making use of shielding means
• B23K 10/02 - Plasma welding
• B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
• B23K 35/22 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
• B23K 35/26 - Selection of soldering or welding materials proper with the principal constituent melting at less than 400°C
• B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
• C22C 11/00 - Alloys based on lead
• C22C 38/00 - Ferrous alloys, e.g. steel alloys

Abstract

An apparatus (10) is described for removing radioactive contamination, at least in part, from a first article (A1) comprising a metal, preferably wherein the metal comprises and/or is a low melting point metal for example lead and/or an alloy thereof. The apparatus (10) comprises a heated first vessel (100A) for melting the metal, at least in part, therein, thereby providing a melt (M) therefrom. The apparatus (10) comprises casting means (200) for forming a second article (A2), particularly a sheet, having a predetermined thickness (T), from the melt, preferably wherein the casting means (200) comprises and/or is a rotatable roller (210) arrangeable to contact the melt (M) to thereby form thereon the second article (A2) and a guide (220) arranged to remove the second article (A2) from the roller (210). The apparatus (10) comprises a set of radiation detectors (300), including a first radiation detector (300A), arranged to detect a first fraction of the radioactive contamination, if present, in a first part (P1) of a set of parts of the second article (A2), preferably wherein the set of radiation detectors (300) comprises opposed first and second radiation detectors (300A, 300B) arranged to receive the second article (A2) traversing therebetween. The apparatus (10) comprises a cutter (400) arrangeable to excise the first part (P1) of the second article (A2) therefrom.

IPC Classes  ?

• G21F 9/00 - Treating radioactively contaminated materialDecontamination arrangements therefor
• G21F 9/30 - Processing

Abstract

A method of joining a first metal and a second metal is described. The first metal comprises Pb in an amount of at least 50 wt.% by weight of the first metal. The method comprises fusing the first metal and the second metal using non-consumable electrode arc welding.

IPC Classes  ?

• B23K 9/09 - Arrangements or circuits for arc welding with pulsed current or voltage
• B23K 9/167 - Arc welding or cutting making use of shielding gas and of a non-consumable electrode
• B23K 10/02 - Plasma welding
• B23K 101/36 - Electric or electronic devices

Abstract

An apparatus (10) is described for removing radioactive contamination, at least in part, from a first article (A1) comprising a metal, preferably wherein the metal comprises and/or is a low melting point metal for example lead and/or an alloy thereof. The apparatus (10) comprises a heated first vessel (100A) for melting the metal, at least in part, therein, thereby providing a melt (M) therefrom. The apparatus (10) comprises casting means (200) for forming a second article (A2), particularly a sheet, having a predetermined thickness (T), from the melt, preferably wherein the casting means (200) comprises and/or is a rotatable roller (210) arrangeable to contact the melt (M) to thereby form thereon the second article (A2) and a guide (220) arranged to remove the second article (A2) from the roller (210). The apparatus (10) comprises a set of radiation detectors (300), including a first radiation detector (300A), arranged to detect a first fraction of the radioactive contamination, if present, in a first part (P1) of a set of parts of the second article (A2), preferably wherein the set of radiation detectors (300) comprises opposed first and second radiation detectors (300A, 300B) arranged to receive the second article (A2) traversing therebetween. The apparatus (10) comprises a cutter (400) arrangeable to excise the first part (P1) of the second article (A2) therefrom.

IPC Classes  ?

• G21F 9/00 - Treating radioactively contaminated materialDecontamination arrangements therefor
• G21F 9/30 - Processing