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.

公开(公告)号：WO2021117007A1

公开(公告)日：2021-06-17

申请号：PCT/IB2020/061849

申请日：2020-12-11

Applicant: ALERIS ROLLED PRODUCTS GERMANY GMBH

Inventor： JACOBY, Bernd ,  RITZ, Fabian ,  KIRKHAM, Steven

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

Abstract: The invention relates to a multi-layered brazing sheet material comprising of an aluminum core alloy layer provided with a first brazing clad layer material on one or both sides of the aluminum core layer and at least one second brazing clad layer material positioned between the aluminum core alloy layer and the first brazing clad layer material.

公开(公告)号：WO2021250545A1

公开(公告)日：2021-12-16

申请号：PCT/IB2021/054983

申请日：2021-06-07

Applicant: ALERIS ROLLED PRODUCTS GERMANY GMBH

Inventor： AUST, Dennis ,  RITZ, Fabian ,  JACOBY, Bernd

IPC: C22C21/02 ,  C22C21/06 ,  C22C21/08 ,  C22F1/00 ,  C22F1/05 ,  C25D11/10 ,  B01J3/00 ,  C22F1/002 ,  C25D11/08

Abstract: Described herein is a method of manufacturing an aluminium alloy plate for vacuum chamber elements, valves, or total assemblies, the method comprising the steps of: (a) providing a rolling feedstock material of an Al-Mg-Si aluminium alloy having a composition comprising of, in wt.%, Mg 0.80%-1.05%, Si 0.70%-1.0%, Mn 0.70%-0.90%, Fe up to 0.20%, Zn up to 0.08%, Cu up to 0.05%, Cr up to 0.03%, Ti up to 0.06%, unavoidable impurities and balance aluminium; (b) homogenizing of the rolling feedstock at a temperature in a range of 550-595°C; (c) hot-rolling of the homogenized rolling feedstock in one or more rolling steps to a hot-rolled plate having a thickness of at least 10 mm; (d) solution heat- treatment (SHT'') of the hot rolled plate at a temperature in a range of 540-590°C; (e) rapid cooling the SHT plate; (f) stretching of the cooled SHT plate to obtain a permanent elongation from 1-5%; (g) artificial ageing of the stretched plate.

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.