公开(公告)号：US11413711B2

公开(公告)日：2022-08-16

申请号：US16763853

申请日：2018-11-13

Applicant: Senju Metal Industry Co., Ltd.

Inventor： Motohiro Onitsuka ,  Yoko Kurasawa ,  Hiroyuki Yamasaki ,  Atsumi Takahashi ,  Toshihisa Kugi ,  Hiroyoshi Kawasaki

IPC: B23K35/36 ,  B23K35/362 ,  B23K1/00 ,  B23K35/02

Abstract: Provided are a flux, resin flux cored solder and a flux coated pellet which are washable with water. Resin flux cored solder is composed of solder having a linear shape and a flux filled in a substantially central part (core) of the cross section of the solder. The flux contains an amine for salt formation and an organic acid for salt formation, in which the amount of the organic acid is within a range between 10 parts by mass or more and 645 parts by mass or less based on 100 parts by mass of the amine. The organic acid for salt formation is composed of at least one organic acid selected from the group consisting of malonic acid, succinic acid, glutaric acid, tartaric acid, malic acid, diglycolic acid, and citric acid.

公开(公告)号：US20160184937A1

公开(公告)日：2016-06-30

申请号：US14971072

申请日：2015-12-16

Applicant: Senju Metal Industry Co., Ltd.

Inventor： Motohiro Onitsuka ,  Yoko Kurasawa ,  Toshihisa Kugi ,  Hiroshi Kawanago ,  Kaichi Tsuruta

IPC: B23K35/36 ,  B23K35/02 ,  B23K35/362

CPC classification number: B23K35/3612 ,  B23K35/0227 ,  B23K35/0261 ,  B23K35/0266 ,  B23K35/3613 ,  B23K35/362 ,  H05K3/3478 ,  H05K3/3489 ,  H05K2203/0405

Abstract: A flux for a resin flux cored solder contains 30% or more by mass but 80% or less by mass rosin ester and 5% or more by mass but 15% or less by mass activator. The total content ratio of base materials including the rosin ester is preferably equal to or more than 85% by mass but equal to or less than 95% by mass.

Abstract translation: 用于树脂药芯焊剂的助熔剂含有质量分数为30质量％以上且80质量％以下的松香酯，5质量％以上，15质量％以下的活化剂。 包含松香酯的基材的总含量比优选为85质量％以上且95质量％以下。

公开(公告)号：US20200376609A1

公开(公告)日：2020-12-03

申请号：US16763853

申请日：2018-11-13

Applicant: Senju Metal Industry Co., Ltd.

Inventor： Motohiro Onitsuka ,  Yoko Kurasawa ,  Hiroyuki Yamasaki ,  Atsumi Takahashi ,  Toshihisa Kugi ,  Hiroyoshi Kawasaki

IPC: B23K35/362 ,  B23K35/36 ,  B23K35/02 ,  B23K1/00

Abstract: Provided are a flux, resin flux cored solder and a flux coated pellet which are washable with water. Resin flux cored solder is composed of solder having a linear shape and a flux filled in a substantially central part (core) of the cross section of the solder. The flux contains an amine for salt formation and an organic acid for salt formation, in which the amount of the organic acid is within a range between 10 parts by mass or more and 645 parts by mass or less based on 100 parts by mass of the amine. The organic acid for salt formation is composed of at least one organic acid selected from the group consisting of malonic acid, succinic acid, glutaric acid, tartaric acid, malic acid, diglycolic acid, and citric acid.

公开(公告)号：US10688603B2

公开(公告)日：2020-06-23

申请号：US16304099

申请日：2017-12-27

Applicant: SENJU METAL INDUSTRY CO., LTD.

Inventor： Motohiro Onitsuka ,  Yoko Kurasawa ,  Toshihisa Kugi ,  Hiroyoshi Kawasaki

IPC: B23K35/36 ,  B23K35/362 ,  B23K35/02 ,  B23K35/26 ,  B23K35/365 ,  B23K35/368 ,  B23K35/40

Abstract: A flux for a resin flux cored solder or a flux coated solder, in which scattering of flux and solder in using the solder is suppressed, and a resin flux cored solder or a flux coated solder including such a flux are provided. The flux for a resin flux cored solder can include a rosin resin, an activator, and at least one selected from an acrylic polymer and a vinyl ether polymer, which has a weight average molecular weight of 8000 to 100000, in an amount of 0.1 to 3 mass-% based on the total mass of the flux.

公开(公告)号：US10265808B2

公开(公告)日：2019-04-23

申请号：US14971072

申请日：2015-12-16

Applicant: Senju Metal Industry Co., Ltd.

Inventor： Motohiro Onitsuka ,  Yoko Kurasawa ,  Toshihisa Kugi ,  Hiroshi Kawanago ,  Kaichi Tsuruta

IPC: B23K35/36 ,  B23K35/362 ,  B23K35/02 ,  H05K3/34

Abstract: A flux for a resin flux cored solder contains 30% or more by mass but 80% or less by mass rosin ester and 5% or more by mass but 15% or less by mass activator. The total content ratio of base materials including the rosin ester is preferably equal to or more than 85% by mass but equal to or less than 95% by mass.