5528| 12
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斜盤式軸向柱塞泵粉末冶金滑靴 |
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點(diǎn)評(píng)
按你的說法,銅層是“熔鑄”的,,具體工藝細(xì)節(jié)廠家也不知道,,外協(xié)的,大致是銅塊在高溫,,高壓下“壓”在泵體上的,,估計(jì)關(guān)鍵是溫度曲線和壓力曲線的控制,。但泵體是粉末冶金的,大量減少工藝流程,。
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