Boric Acid Free Flux |
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| 申请号 | US15646026 | 申请日 | 2017-07-10 | 公开(公告)号 | US20170304962A1 | 公开(公告)日 | 2017-10-26 |
| 申请人 | Lincoln Global, Inc; | 发明人 | Robert A. Howard; | ||||
| 摘要 | The invention described herein pertains generally to boric acid free flux composition in which boric acid and/or borax is substituted with a molar equivalent amount of potassium tetraborate tetrahydrate. In some embodiments, a phthalocyanine pigment is used to effect a color change at activation temperature. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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