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1. 发明授权

US4901907A Heat exchanger core made of aluminum and method for application of flux during process of soldering thereof 失效
标题翻译：由铝制成的热交换器芯和在其焊接过程中施加焊剂的方法
公开(公告)号：US4901907A
公开(公告)日：1990-02-20
申请号：US159195
申请日：1988-02-23
申请人： Hiroaki Enokido , Takayuki Hatanaka , Takashi Kozono
发明人： Hiroaki Enokido , Takayuki Hatanaka , Takashi Kozono
IPC分类号： B23K1/00 , F28F21/08
CPC分类号： F28F21/084 , B23K1/0012
摘要： A method for production of a heat exchanger is disclosed, where a powder flux is applied in a process of soldering a heat exchanger core of aluminum. An annular groove is formed in a seat plate. Measures are taken for preventing wetting of the annular groove of the seat plate when sprayed with the water on the preassembled core, such that a non-corrosive flux would not adhere to the annular groove of the seat plate. Water is sprayed in the form of a mist on a preassembled heat exchanger core through plurality of spray nozzles. The annular grooves of the seat plates are thoroughly dried after the application of water for attaining a perfect absence of residual non-corrosive flux in the annular grooves of the seat plates. A non-corrosive flux powder is sprayed onto the preassembled heat exchanger core of aluminum with a powder spray gun. The non-corrosive flux is caused to adhere fast to the portion wetted with the water.
摘要翻译：公开了一种用于生产热交换器的方法，其中在焊接铝的热交换器芯的过程中施加粉末焊剂。在座板上形成环形槽。采取措施，防止在预先组装的芯上喷水时座板的环形槽的润湿，使得非腐蚀性的焊剂不会附着在座板的环形槽上。水通过多个喷嘴喷射在预先组装的热交换器芯上以雾的形式喷洒。在施加水之后，座板的环形槽被彻底干燥，以在座板的环形槽中完全没有残留的非腐蚀性助焊剂。用粉末喷枪将非腐蚀性助焊剂粉末喷涂到铝的预先组装的热交换器芯上。使非腐蚀性助焊剂快速粘附到用水润湿的部分。

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