发明名称 |
ALUMINUM EXTRUDED POROUS FLATTENED TUBE FOR HEAT EXCHANGER OF AUTOMOBILE EXCELLENT IN PROPERTY TO BE BRAZED AND MANUFACTURE THEREOF |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide an aluminum extruded porous flattened tube for heat exchanger of a car excellent in a property to be brazed, in which flux composition or brazing composition can uniformly be pre-coated on the surface of the aluminum extruded porous flat tube in good transferability and adhesibility and the flux coating process can be omitted and brazing filler metal instead of a brazing sheet is not cladded at the time of assembling the heat exchanger. SOLUTION: At least one side of the flattened surface of the aluminum extruded porous flat tube is coated with the flux composition composed of a synthetic resin consisting essentially of polymer or copolymer of methacrylate ester and a brazing flux, or the brazing composition composed of the synthetic resin, brazing flux and a brazing filler metal. It is desirable to transfer a material adding the composition in organic solvent having 2-3 in the atomic ratio of carbon to oxygen molecular structure on the surface of the aluminum extruded porous flattened tube with roll.</p> |
申请公布号 |
JPH11239867(A) |
申请公布日期 |
1999.09.07 |
申请号 |
JP19980058938 |
申请日期 |
1998.02.24 |
申请人 |
DENSO CORP;HARIMA CHEM INC;SUMITOMO LIGHT METAL IND LTD |
发明人 |
TEJIMA KIYOHIDE;HASEGAWA YOSHIHARU;YANAKA ICHIRO;USAMI TSUTOMU;HISATOMI YUJI |
分类号 |
F28F1/32;B23K1/00;B23K1/19;B23K3/00;B23K35/02;B23K35/14;B23K35/22;B23K35/36;B23K35/363;C08L33/06;F28F21/08;(IPC1-7):B23K1/00 |
主分类号 |
F28F1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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