3983| 9
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廠家給表淬了HB450以上了,,客戶不通過,,怎么辦 |
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供貨期沒有了
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有道理,!大齒輪的檢驗(yàn)指標(biāo)除化學(xué)成分外還有機(jī)械性能指標(biāo),極限強(qiáng)度σB,MPa,, 屈服點(diǎn)σ0.2 ,MPa,,相對(duì)延伸率δ, %,沖擊韌性KCU焦耳/cm²,,相對(duì)收縮率,,ψ,%,,并不包含硬度指標(biāo)
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