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Luoyang Eric Machinery Equipment Technology Co., Ltd.
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埃里克分享真空钎焊铝制换热器的技术方法
Release date:2022-05-27
埃里克共享铝制板换热器真空I钎焊方式,其特性在于,该方法 采用纯铝或3003铝合金板和R‑5461‑S云母带作为相邻换热器芯部正中间的隔离层原料;采用4004钎料片作为换热器芯部的侧板与板翅式、密封正中间钎焊的钎焊料,该方法包括以下步骤:在柔性夹具工装底板上把清除和烘干处理解决后的挡片、4004钎料片、板翅式、引流方法片、隔板、密封依次叠放,直到叠放完毕,开展[敏感词]个换热器芯部的基本上组装;在[敏感词]个换热器芯部的上表面,即换热器芯部的顶部挡片上依次叠放已用二甲苯清洗消除好的云母带;在高层黑云母携带把清除和烘干处理解决后的挡片、4004钎料片、板翅式、引流方法片、隔板、密封依次叠放,直到叠放完毕,开展第二个换热器芯部的基本上组装;不断步骤,直到最后一个要叠层钎焊的换热器芯部组成电子器件依次叠放完毕;卡紧柔性夹具工装,开展好多个换热器芯部的叠层组装;叠层拼装完毕的换热器送进机械泵钎焊炉进行钎焊,钎焊室真空保鲜至7~8×10‑4Pa,以7~11℃/min的升温速率升温到198℃后保温隔热13~19 min,在把以7~9℃/min的升温速速度升温到490℃后保持温隔热14~19 min,再用3~4℃/min的升温速率升温到600℃后保温隔热4~5min,停止升温,待钎焊室降温到350~360℃时关闭真空保鲜系统并充进纯氡气对钎焊室进行强制致冷,即充进纯氡气至0.04~0.05MPa时开启钎焊室排气阀门,再度充进纯氡气,直到钎焊室致冷到200~250℃时停止充进纯氡气,待钎焊室气体压强与外部环境质量一致时关闭钎焊室排气阀门,开启钎焊炉内取出已钎焊好的叠层换热器芯部,让其在空气中自然致冷,制冷到常温下后松掉柔性夹具工装,将叠层组装在一起的换热器芯部分离出来去。
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