2263| 4
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求助!穿孔機(jī)三輥導(dǎo)向裝置多支輥?zhàn)映霈F(xiàn)裂紋 |
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點(diǎn)評(píng)
這個(gè)與交變沖擊還有關(guān)系,假如你調(diào)整的不好,或者毛管的璧厚不均勻,沖擊比較大,輥?zhàn)邮茌^大的周期沖擊,就加大了疲勞損傷的提前發(fā)生,導(dǎo)致壽命減低,42CrMo性能不行,高溫壽命很短,磨損會(huì)非?斓,頻繁更換
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