公开(公告)号：US20230256532A1

公开(公告)日：2023-08-17

申请号：US18015061

申请日：2021-07-07

Applicant: LEAD TECHNOLOGIES LIMITED

Inventor： Ian Crabbe

IPC: B23K9/167 ,  B23K9/16 ,  B23K35/26

CPC classification number: B23K9/167 ,  B23K9/164 ,  B23K35/268 ,  B23K10/02

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.

公开(公告)号：US20220181040A1

公开(公告)日：2022-06-09

申请号：US17440492

申请日：2020-04-15

Applicant: Lead Technologies Limited

Inventor： Ian Crabbe

IPC: G21F9/00 ,  G21F9/30

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.