公开(公告)号：US11408690B2

公开(公告)日：2022-08-09

申请号：US16459585

申请日：2019-07-01

Applicant: UACJ CORPORATION

Inventor： Makoto Ando ,  Atsushi Fukumoto ,  Akio Niikura

IPC: B23K35/22 ,  B23K20/04 ,  F28F21/08 ,  F28F19/06 ,  C22C21/00 ,  B23K20/233 ,  C22F1/04 ,  B23K35/28 ,  C23F13/14 ,  B23P15/26 ,  B32B15/01 ,  C22C21/02 ,  C22C21/08 ,  C22C21/10 ,  C22C21/14 ,  B23K101/14 ,  B23K101/34 ,  B23K103/10

Abstract: A method for producing an aluminum alloy clad material having a core material and a sacrificial anode material clad on at least one surface of the core material, wherein the core material comprises an aluminum alloy comprising 0.050 to 1.5 mass % (referred to as “%” below) Si, 0.050 to 2.0% Fe and 0.50 to 2.00% Mn; the sacrificial anode material includes an aluminum alloy containing 0.50 to 8.00% Zn, 0.05 to 1.50% Si and 0.050 to 2.00% Fe; the grain size of the sacrificial anode material is 60 μm or more; and a ratio R1/R2 is 0.30 or less, wherein R1 (μm) is a grain size in a thickness direction and R2 (μm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction; a production method thereof; and a heat exchanger using the clad.

公开(公告)号：US11370067B2

公开(公告)日：2022-06-28

申请号：US16635805

申请日：2018-07-23

Applicant: UACJ Corporation

Inventor： Yukie Kitada ,  Naoki Yamashita

IPC: B32B15/01 ,  B23K35/28 ,  B23K35/02 ,  C22C21/02 ,  C22C21/14 ,  C22F1/043 ,  F28F21/08 ,  B23K103/10 ,  B23K101/14

Abstract: An aluminum alloy brazing sheet includes a four-layer material containing an intermediate layer formed of an aluminum alloy including Mn of from 0.2 to less than 0.35 mass %, Si of 0.6 mass % or less, Fe of 0.7 mass % or less, and Cu of 0.1 mass % or less, with the balance being Al and inevitable impurities, a core material formed of an aluminum alloy including Si of 1.2 mass % or less, Fe of 1.0 mass % or less, Cu of from 0.3 to 1.0 mass %, and Mn of from 0.5 to 2.0 mass %, with the balance being Al and inevitable impurities, and each of an air-side brazing material layer and an internal brazing material layer is formed of an aluminum alloy including Si of from 4 to 13 mass %, with the balance being Al and inevitable impurities.

公开(公告)号：US11331723B2

公开(公告)日：2022-05-17

申请号：US15962182

申请日：2018-04-25

Applicant: Metal Industries Research & Development Centre

Inventor： Hung-Tao Chen ,  Chang-Shu Kuo ,  In-Gann Chen ,  Steve Lien-Chung Hsu ,  Chi-Wah Keong

IPC: B22F7/06 ,  B22F1/00 ,  B22F3/14 ,  B23K35/28 ,  B22F3/15

Abstract: A light metal joint filler is provided. The light metal joint filler is formed by uniformly mixing a solvent with a light metal powder and a silver powder, where a powder particle size of the light metal powder is on a micron scale, and a powder particle size of the silver powder is on a nanometer scale or a submicron scale. A metal joining method of the present disclosure includes: coating a joint of two to-be-joined light metal pieces with the light metal joint filler; and hot pressing the two to-be-joined light metal pieces, so that the silver powder is sintered and bonded with the light metal powder and surfaces of the two to-be-joined light metal pieces, and completing joining of the two to-be-joined light metal pieces after the silver powder is condensed.

公开(公告)号：US11320217B2

公开(公告)日：2022-05-03

申请号：US16988903

申请日：2020-08-10

Applicant: UACJ Corporation

Inventor： Yutaka Yanagawa ,  Norihisa Isomura ,  Yuki Totani ,  Yasuhiro Yagita ,  Tetsuro Hata

IPC: F28F3/06 ,  F28F21/08 ,  B23K1/00 ,  B23K35/36 ,  B32B15/01 ,  B23K35/00 ,  B23K35/02 ,  B23K1/19 ,  B23K1/20 ,  B23K35/28 ,  B23K1/008 ,  B23K35/38 ,  H05K7/20 ,  B23K101/14

Abstract: A method for manufacturing a heat exchanger (1) includes joining an inner fin (3) to a hollow structure (20) formed from at least two clad plates (200a, 200b) by heating and brazing a filler metal layer (B). Each clad plate has a core layer (A) composed of an aluminum alloy that contains Mg: 0.40-1.0 mass %. The filler metal layer is composed of an aluminum alloy that contains Si: 4.0-13.0 mass %, and further contains Li: 0.0040-0.10 mass %, Be: 0.0040-0.10 mass %, and/or Bi: 0.01-0.30 mass %. The inner fin is composed of an aluminum alloy that contains Si: 0.30-0.70 mass % and Mg: 0.35-0.80 mass %. A flux (F) that contains cesium (Cs) is applied along a contact part (201), and the vicinity thereof, of the at least two clad plates prior to the heating. A heat exchanger (1) may be manufactured according to this method.

公开(公告)号：US20220088724A1

公开(公告)日：2022-03-24

申请号：US17464535

申请日：2021-09-01

Applicant: Lincoln Global, Inc.

Inventor： Vivek Sengupta

IPC: B23K35/28 ,  B23K35/02 ,  C22C21/00

Abstract: The disclosed technology relates generally to welding, and more particularly to consumable electrodes based on aluminum and methods of welding using the same. In one aspect, a consumable welding electrode comprises a base metal composition comprising at least 70% by weight of aluminum and a fluidity-enhancing metal capable of forming a binary eutectic with aluminum, wherein the binary eutectic undergoes a binary eutectic solidification at a eutectic temperature of 595-660° C. The fluidity-enhancing metal is present in form and a hypoeutectic concentration of 0.05-0.5 weight % such that a solidification temperature range of a molten weld metal formed by melting the consumable welding electrode is less than 65° C.

公开(公告)号：US11278981B2

公开(公告)日：2022-03-22

申请号：US16921387

申请日：2020-07-06

Applicant: AWDS TECHNOLOGIES SRL

Inventor： Carlo Gelmetti ,  Filippo Corradini

IPC: B23K9/133 ,  B65H57/18 ,  B23K35/28 ,  B23K37/00 ,  F16D7/02 ,  F16H1/20 ,  B65H49/08 ,  B23K103/10 ,  F16D121/14

Abstract: A device for imparting a torsional force onto a wire has a base and a support mounted so as to be rotatable with respect to the base around an axis of rotation. The axis of rotation coincides with a wire path extending through the base and the support. Further, a wire clutching device is mounted on the support and adapted to engage at a wire guided along the wire path, and a rotation mechanism is provided which is adapted for rotating the support with respect to the base.

公开(公告)号：US20220072665A1

公开(公告)日：2022-03-10

申请号：US17424384

申请日：2019-09-25

Applicant: Mitsubishi Aluminum Co., Ltd.

Inventor： Yoshiki MORI ,  Hideyuki MIYAKE ,  Michihide YOSHINO ,  Shohei IWAO ,  Masakazu EDO

IPC: B23K35/28 ,  B32B15/01 ,  C22C21/02 ,  C22C21/10 ,  B23K35/02

Abstract: An aluminum brazing sheet has a multilayer structure of two or more layers of at least a core material and a brazing material, wherein an Al—Si—Mg—Bi-based brazing material containing, by mass %, 0.01% to 2.0% of Mg, 1.5% to 14.0% of Si, and 0.005% to 1.5% of Bi is clad on one surface or both surfaces of the core material to be located at an outermost surface of the aluminum brazing sheet, in the Al—Si—Mg—Bi based brazing material, there are more than 10 Mg—Bi-based compounds having a diameter of 0.01 μm or more and less than 5.0 μm when observed in a surface layer plane direction and there are less than 2 Mg—Bi-based compounds having a diameter of 5.0 μm or more, and in the brazing material, there are less than 5 Bi particles having a diameter of 5.0 μm or more when observed in the surface layer plane direction.

公开(公告)号：US11225051B2

公开(公告)日：2022-01-18

申请号：US16075827

申请日：2017-01-23

Applicant: Aleris Rolled Products Germany GmbH

Inventor： Bernd Jacoby ,  Steven Kirkham ,  Arne Schlegel

IPC: B23K35/02 ,  B32B15/01 ,  C22C21/02 ,  B23K35/28 ,  C22C21/14 ,  F28F21/08 ,  C22C21/00

Abstract: A multi-layered brazing sheet product having an aluminium core alloy layer provided on one or both sides with a brazing clad layer material, and an inter-layer material positioned between the aluminium core alloy layer and at least one of the brazing clad layer materials, wherein the brazing layer material(s) is made from an 4xxx-series aluminium alloy having 5% to 15% Si and up to 3% Mg, and wherein the inter-layer material is made from a 1xxx-series aluminium alloy having a purposive addition of Mg of 0.10% to 2.0%. The invention relates also to the use of the brazing sheet product in a fluxless controlled atmosphere brazing process.

公开(公告)号：US20220002843A1

公开(公告)日：2022-01-06

申请号：US17436040

申请日：2020-02-27

Applicant: CONSTELLIUM NEUF-BRISACH

Inventor： Bechir CHEHAB ,  Armelle DANIELOU ,  Pablo LORENZINO ,  Lionel PEGUET

IPC: C22C21/00 ,  B23K35/00 ,  B23K35/28 ,  B23K1/00

Abstract: A strip intended for the manufacture of brazed heat exchangers, having a core made of an alloy with the composition (weight %):
Si: 0.10-0.30%, preferably 0.15-0.25% Fe

公开(公告)号：US20210394313A1

公开(公告)日：2021-12-23

申请号：US17287283

申请日：2019-10-25

Applicant: UACJ Corporation

Inventor： Tomoki Yamayoshi ,  Hidetoshi Kumagai ,  Hirokazu Tanaka

IPC: B23K35/28 ,  C22F1/053 ,  B23K35/02 ,  B32B15/01

Abstract: An aluminum alloy brazing sheet formed of a brazing material, an intermediate material, a core material, and a brazing material. The intermediate material contains Mg of 0.40 to 6.00 mass % and Zn exceeding 2.00 mass % and equal to or less than 8.00 mass %. The core material contains Mg of 0.40 to 2.00 mass % and one or two or more of Mn of 1.80 mass % or less, Si of 1.50 mass % or less, Fe of 1.00 mass % or less, Cu of 1.20 mass % or less, Ti of 0.30 mass % or less, Zr of 0.30 mass % or less, and Cr of 0.30 mass % or less. Each of the core material and the intermediate material has a grain size of 20 to 300 μm, and each of the brazing materials comprises Si of 4.00 to 13.00 mass %.