Method for forming heat exchangers

专利名称：Method for forming heat exchangers发明人：Gary A. Halstead,Paul J. Conn申请号：US07/9345申请日：19920901公开号：US05251374A公开日：19931012

摘要：An improved method for assembling a brazed heat exchanger unit suitable foruse in an automobile air conditioning system. Prior to assembly, a sufficiently viscous flux-brazing composition is selectively applied to the internal and external features of theheat exchanger which serve as the joining surfaces of the heat exchanger. The flux-brazing composition is specifically applied to the internal surfaces of the aluminum alloyheader and the external surfaces of the tubes so as to form uniformly and consistentlybrazed internal and external joints. The flux-brazing composition of this invention consistsof potassium tetrafluoroaluminate particles, an aluminum-silicon powder, zinc and abinder. The flux-brazing composition enables the selective application of both a fluxcompound and a brazing compound, eliminating excessive use of flux and eliminating theneed to clad the components of the heat exchanger with an aluminum alloy brazingmaterial.

申请人：HALSTEAD; GARY A.,CONN; PAUL J.,S. A. DAY MANUFACTURING COMPANYINC.

代理人：Gary M. Hartman,Domenica N. S. Hartman

更多信息请下载全文后查看