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    • 6. 发明授权
    • Process for making a plastic counterflow heat exchanger
    • 制造塑料逆流换热器的工艺
    • US06660198B1
    • 2003-12-09
    • US09664624
    • 2000-09-19
    • Richard L. Fischer
    • Richard L. Fischer
    • B29C3910
    • F28F21/067B29C49/00B29C49/20B29C51/00B29C2791/001B29C2793/009B29L2031/18F28D9/0037F28F21/065F28F2250/108
    • A process for making inner and outer ducts for a simple but effective plastic heat exchanger by a simple blow molding or thermoforming technique. Seals are formed by providing initially closed inner ducts which are stacked on one another and the end portions of the inner ducts are placed in a mold. A castable adhesive sealant is placed in the mold and around the stacked inner ducts. After curing, the mold and the stacked inner ducts are separated and a portion of the stack and a portion of the seal material are cut and removed. Thereafter, the outer duct is positioned about the stacked inner ducts so that two different flow paths are formed. Instead of molding the seal, a preformed seal may be press fitted to the stack of inner ducts.
    • 通过简单的吹塑或热成型技术制造简单但有效的塑料热交换器的内外管道的方法。 通过提供彼此堆叠的初始封闭的内部管道并且将内部管道的端部放置在模具中来形成密封件。 浇注胶粘剂被放置在模具中并且在堆叠的内部管道周围。 固化后,模具和堆叠的内部管道被分离,并且一部分堆垛和一部分密封材料被切割和移除。 此后,外部管道围绕堆叠的内部管道定位,使得形成两个不同的流动路径。 代替模制密封件,可以将预制的密封件压配合到内部管道的堆叠。