性格决定命运英文专利名称：HALOGEN-FREE SOLDER PASTE AND
小学英语课堂实录
PREPARATION METHOD THEREFOR
发明人：LIANG, Hongping，梁宏平,OUYANG, Liang，欧阳亮,ZHENG, Fudong，郑富东
piglet申请号：CN2020/135738
暮光之城3简介申请日：20201211dldl
公开号：WO2022/036950A1
色拉英语公开日：
20220224
记叙文写作技巧
专利内容由知识产权出版社提供
典雅意思摘要：A halogen-free solder paste and a preparation method therefor. The halogen-free solder paste compris 80-90 parts by weight of an Sn-X alloy powder, 0.5-1.5 parts by weight of a halogen-free activator, 2-4 parts by weight of an organic solvent, 3-5 parts by weight of a liquid rosin resin, 0.5-1 part by weight of a thixotropic agent, and 0.05-0.5 part by weight of a leveling agent. The influence of halogen on the weldability after welding is avoided; few residues remain after welding; and the halogen-free solder paste does not need to be cleaned, is environmentally friendly and non-toxic, is relatively low in cost and has a very strong market competitiveness. By virtue of the good adhesion between the halogen-free solder paste and a welding substrate, the problem of the poor welding performance of the conventional solder paste can be effectively solved.qps
申请人：HUIZHOU YUAN DE ZHI TECHNOLOGY CO. LTD，惠州市源德智科技有限公司地址：No.8 Workshop, East Fifth Road, Hechang Avenue, Zhongkai High-tech Zone Huizhou, Guangdong 516006，中国广东省惠州市仲恺高新区和畅东五路8号厂房, Guangdong 516006scratched
国籍：CN,CN
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