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6#
樓主 |
發(fā)表于 2009-2-16 17:02:05
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摩擦系數(shù)的選取是件麻煩的事情,必須得小心考慮實(shí)際工況
--(Extreme care is needed in using friction coefficients and additional independent references should be used. For any specific application the ideal method of determining the coefficient of friction is by trials. A short table is included above the main table to illustrate how the coefficient of friction is affected by surface films. When a metal surface is perfectly clean in a vacuum . the friction is much higher than the normal accepted value and seizure can easily occur. )
疑問較多,請(qǐng)大家解答,
1. 若接觸材料為鋁和不銹鋼,而不銹鋼表面鍍了一層7-10微米的鎳層,摩擦系數(shù)怎么取?怎樣考慮鍍層影響?
2. 若接觸材料為鋁和不銹鋼,接觸面積很小,近似線接觸,接觸面間壓力還較高,如圖(軸向力100牛左右),摩擦系數(shù)怎樣。
3. 若接觸材料為鋁和不銹鋼,零件表面潔凈度非常高----裝配環(huán)境為class100的無塵室,摩擦系數(shù)?
[ 本帖最后由 easylife 于 2009-2-16 17:06 編輯 ] |
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