公开(公告)号：WO2021220152A1

公开(公告)日：2021-11-04

申请号：PCT/IB2021/053457

申请日：2021-04-27

Applicant: ALERIS ROLLED PRODUCTS GERMANY GMBH

Inventor： RITZ, Fabian ,  JACOBY, Bernd ,  SMEYERS, Axel Alexander Maria ,  KIRKHAM, Steven

IPC: C22C21/00 ,  B23K35/02 ,  B23K35/28 ,  B32B15/01 ,  C22C21/02 ,  C22C21/10 ,  C22F1/04 ,  F28F21/08

Abstract: Described herein is a brazed heat exchanger comprising at least one header, manifold and/or tube structured to hold a coolant or refrigerant; said header, manifold, and/or tube component including a plurality of apertures; a plurality of substantially parallel fluid-carrying tubes each extending substantially perpendicular from one of said plurality of apertures in said header plate, manifold, and/or tube component and structured to receive said coolant or refrigerant therethrough; and a plurality of corrugated aluminium alloy fins being in thermal communication with said plurality of fluid-carrying tubes and structured to transfer heat away therefrom. The header, manifold, and/or tube component is made from an aluminium alloy sheet material comprising, in wt.%: Mn 1.4%-1.8%; Si up to 0.7%; Fe up to 0.7%; Mg up to 0.30%; Cu up to 0.10%; Cr up to 0.25%; Zr up to 0.25%; Zn up to 0.50%; Ti up to 0.2%; balance aluminium and inevitable impurities.

公开(公告)号：WO2021255638A1

公开(公告)日：2021-12-23

申请号：PCT/IB2021/055264

申请日：2021-06-15

Applicant: ALERIS ROLLED PRODUCTS GERMANY GMBH

Inventor： JACOBY, Bernd ,  KIRKHAM, Steven ,  RITZ, Fabian ,  SMEYERS, Axel Alexander Maria

IPC: B23K35/02 ,  B23K1/00 ,  B23K35/28 ,  B23K35/38 ,  B32B15/01 ,  C22C21/00 ,  C22C21/02 ,  B23K103/10 ,  B23K101/14 ,  B23K1/0012 ,  B23K2101/14 ,  B23K2103/10 ,  B23K35/0238 ,  B23K35/286 ,  B23K35/383 ,  B32B15/016

Abstract: Described herein is an aluminium alloy multi-layered brazing sheet product for brazing in an inert-gas atmosphere without a flux that includes a core layer made of a 3xxx alloy that includes

公开(公告)号：WO2021152455A1

公开(公告)日：2021-08-05

申请号：PCT/IB2021/050587

申请日：2021-01-26

Applicant: ALERIS ROLLED PRODUCTS GERMANY GMBH

Inventor： JACOBY, Bernd ,  RITZ, Fabian ,  SCHLEGEL, Arne ,  KIRKHAM, Steven ,  SMEYERS, Axel Alexander Maria

IPC: B23K35/02 ,  B23K35/28 ,  B32B15/01 ,  C22C21/02 ,  C22C21/04

Abstract: Described herein is an aluminium alloy multi-layered brazing sheet product for brazing in an inert-gas atmosphere without a flux, comprising a core layer made of a 3xxx alloy comprising 0.20-0.75 wt. % Mg, and provided with a covering clad layer comprising 2-5 wt. % Si on one or both sides of said 3xxx alloy core layer and a Al-Si brazing clad layer comprising 7-13 wt. % Si positioned between the 3xxx alloy core layer and the covering clad layer, wherein the covering clad layer has a thickness X1 and the Al-Si brazing clad layer has a thickness X2 and wherein X2 ≥ 2X1. The invention further relates to the use of an aluminium alloy multi-layered brazing sheet product in a fluxfree controlled atmosphere brazing (CAB) operation to produce a heat exchanger apparatus.