Patent ID: 11945055
Assignee: SENJU METAL INDUSTRY CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B  C | IPC B

Claim 0:
1. A flux containing:
1 to 10 wt % of an organic sulfonic acid activator;
10 to 40 wt % of a high-molecular-weight nonionic surfactant that is a nonionic surfactant having a mass-average molecular weight of more than 1200; and
5 to 75 wt % of a low-molecular-weight nonionic surfactant that is a nonionic surfactant having a mass-average molecular weight of 1200 or less,
wherein a content of the low-molecular-weight nonionic surfactant is equal to or larger than a content of the organic sulfonic acid activator, and
wherein the flux contains no cationic surfactant or contains more than 0 wt % and 5 wt % or less of the cationic surfactant.