公开(公告)号：WO2002090033A1

公开(公告)日：2002-11-14

申请号：PCT/US2002/010660

申请日：2002-04-05

Applicant: PRAXAIR TECHNOLOGY, INC.

Inventor： CORREIA, Joao, Vinicius de Oliveira ,  MACEDO, William de Abreu ,  CAVALLI, Giancarlo, Riccardo

IPC: B23K9/00

CPC classification number: B23K1/00 ,  B23K9/09 ,  B23K9/173

Abstract: This invention is directed to a metal inert gas brazing power source having a concentric type transformer and an inductor. Each of the transformer and inductor has a magnetic core and a coil having specific characteristics. the transformer has a silicon content and the inductor has a magnetic core having carbon, manganese and silicon.

Abstract translation: 本发明涉及一种具有同心型变压器和电感器的金属惰性气体钎焊电源。 变压器和电感器中的每一个具有磁芯和具有特定特性的线圈。 变压器具有硅含量，并且电感器具有具有碳，锰和硅的磁芯。

公开(公告)号：WO2004080638A2

公开(公告)日：2004-09-23

申请号：PCT/US2004/006444

申请日：2004-03-04

Applicant: PRAXAIR TECHNOLOGY, INC. ,  MACEDO, William de Abreu ,  CORREIA, Joao Vinicius de Oliveira

Inventor： MACEDO, William de Abreu ,  CORREIA, Joao Vinicius de Oliveira

IPC: B23K

CPC classification number: B23K9/16 ,  B23K35/383 ,  B23K2203/10

Abstract: The disclosed invention is a composition and process for employing a shielding gas in arc welding. The disclosed composition includes oxygen in an amount between about 0.6% and about 1.9%, helium in an amount between about 10% and about 24%, and the remainder consisting essentially of argon. The invention can be used in high-speed automated welding to result in significantly improved welding speed, joint fit-up tolerance, and burn-through minimization while maintaining excellent mechanical characteristics.

Abstract translation: 所公开的发明是在电弧焊中采用保护气体的组合物和方法。 所公开的组合物包括约0.6％至约1.9％的量的氧，约10％至约24％之间的氦，其余部分基本上由氩组成。 本发明可以用于高速自动化焊接，从而显着提高焊接速度，焊接配合公差和耐燃烧最小化，同时保持优异的机械特性。