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1. WO2020111562 - BRAZING NI-CR-FE-P-BASED ALLOY POWDER HAVING LOW MELTING POINT AND HIGH CORROSIVE RESISTANCE AND MANUFACTURING METHOD THEREFOR

Publication Number WO/2020/111562
Publication Date 04.06.2020
International Application No. PCT/KR2019/015021
International Filing Date 07.11.2019
IPC
B23K 35/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
02characterised by mechanical features, e.g. shape
B23K 35/30 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
24Selection of soldering or welding materials proper
30with the principal constituent melting at less than 1550°C
C22C 19/05 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
B22F 9/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
02using physical processes
06starting from liquid material
08by casting, e.g. through sieves or in water, by atomising or spraying
CPC
B22F 9/08
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
9Making metallic powder or suspensions thereof
02using physical processes
06starting from liquid material
08by casting, e.g. through sieves or in water, by atomising or spraying
B23K 35/02
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
02characterised by mechanical features, e.g. shape
B23K 35/30
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
35Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
22characterised by the composition or nature of the material
24Selection of soldering or welding materials proper
30with the principal constituent melting at less than 1550 degrees C
C22C 19/05
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
19Alloys based on nickel or cobalt
03based on nickel
05with chromium
Applicants
  • 주식회사 풍산홀딩스 POONGSAN HOLDINGS CORPORATION [KR]/[KR]
Inventors
  • 김대현 KIM, Daehyun
  • 이지훈 LEE, Jihoon
  • 송정익 SONG, Jungik
  • 조윤주 CHO, Yunju
Agents
  • 특허법인(유한)케이비케이 KBK & ASSOCIATES
Priority Data
10-2018-014837327.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) BRAZING NI-CR-FE-P-BASED ALLOY POWDER HAVING LOW MELTING POINT AND HIGH CORROSIVE RESISTANCE AND MANUFACTURING METHOD THEREFOR
(FR) POUDRE D'ALLIAGE À BASE DE NI-CR-FE-P POUR BRASAGE AYANT UN POINT DE FUSION BAS ET UNE RÉSISTANCE À LA CORROSION ÉLEVÉE, ET SON PROCÉDÉ DE FABRICATION
(KO) 저융점 및 고내식성을 갖는 NI-CR-FE-P계 브레이징용 합금분말 및 이의 제조 방법
Abstract
(EN)
The present invention relates to a brazing Ni-Cr-Fe-P-based alloy powder having a low melting point and high corrosive resistance and a manufacturing method therefor and, more specifically, to a brazing Ni-Cr-Fe-P-based alloy powder comprising 5 to 40 weight% of Cr, 5 to 30 weight% of Fe, 5 to 20 weight% of P, and the balance of Ni and other inevitable impurities, and a method for manufacturing a brazing Ni-Cr-Fe-P-based alloy powder having a low melting point and high corrosive resistance through a gas atomizing process in which a dissolution temperature of 1300 to 1650℃, a molten metal nozzle diameter of 3 to 10 mm, and a gas spray pressure of 3 to 15 bar are set. Having a low melting point, compared to preexisting products, the alloy powder according to the present invention advantageously works at joining temperatures in a post-treatment process. When used in brazing, the alloy powder can find various applications as a high functional joining material.
(FR)
La présente invention concerne une poudre d'alliage à base de Ni-Cr-Fe-P pour brasage ayant un point de fusion bas et une résistance à la corrosion élevée et son procédé de fabrication et, plus spécifiquement, une poudre d'alliage à base de Ni-Cr-Fe-P pour brasage comprenant de 5 à 40 % massiques de Cr, de 5 à 30 % massiques de Fe, de 5 à 20 % massiques de P et le reste de Ni et d'autres impuretés inévitables, et un procédé de fabrication d'une poudre d'alliage à base de Ni-Cr-Fe-P pour brasage ayant un point de fusion bas et une résistance à la corrosion élevée par le biais d'un procédé d'atomisation de gaz dans lequel sont réglés une température de dissolution allant de 1300 à 1650 °C, un diamètre de buse de métal fondu allant de 3 à 10 mm et une pression de pulvérisation de gaz allant de 3 à 15 bars. Ayant un point de fusion bas en comparaison des produits préexistants, la poudre d'alliage selon la présente invention fonctionne avantageusement à des températures de jonction dans un processus de post-traitement. Lorsqu'elle est utilisée en brasage, la poudre d'alliage peut trouver diverses applications en tant que matériau d'assemblage hautement fonctionnel.
(KO)
본 발명은 저융점 및 고내식성을 갖는 Ni-Cr-Fe-P계 브레이징용 합금분말 및 이의 제조 방법에 관한 것으로서, 보다 구체적으로는 5 내지 40 중량%의 Cr, 5 내지 30 중량%의 Fe, 5 내지 20 중량%의 P, 잔부인 Ni 및 기타 불가피한 불순물을 포함하는 Ni-Cr-Fe-P계 브레이징용 합금분말 및 가스 아토마이징(Gas atomizing) 공정을 통한 Ni-Cr-Fe-P계 브레이징용 합금분말의 제조방법으로, 용해온도는 1300 내지 1650 ℃이며, 용탕노즐구경은 3 내지 10 mm이고, 가스분사압력은 3 내지 15 bar인 저융점 및 고내식성을 갖는 Ni-Cr-Fe-P계 브레이징용 합금분말의 제조방법에 관한 것이다. 본 발명에 따른 합금분말은 기존제품 대비 저융점을 가짐으로써 후처리 공정에서 접합 온도에 유리하게 작용하며, 브레이징에 적용함으로써 고기능성 접합재로서의 다양한 활용이 가능하다.
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