CW101C CuBe2銅合金沖壓銅帶
LM’s comparison list between different
norms from Copper alloys
Please read below on the wished for trade-name in the left hand column, and get it translated into LM-language on the right-hand
column. The right hand column with our name is either identical in composition or a fully replaceable alloy with only minor differences.
The column in the middle states the norm and its country of origin.
With no marks in front of LM’s alloy = alloy is identical, with this sign “~” = alloy is very similar, fully replaceable.
Product name Country of origin LM’s trade name by or order/inquiry
Cu Sn6 German standard / DIN 17662, Zinnbronzen Cu Sn6, CW452K
電化學腐蝕性能
通過未合金化和鋯微合金化錳黃銅在室溫3.5%NaCl 溶液中的動電位很化曲線。以及自腐蝕電位、腐蝕電流密度和腐蝕速率數值。可以看出,二者都發生了鈍化,但是鋯微合金化錳黃銅的鈍化電流密度更大。可以看出,鋯微合金化錳黃銅的自腐蝕電位比未微合金化的高,說明前者的腐蝕傾向更低。可能是由于錳黃銅中的κ 相(富鐵相)發生了剝落,留下了自腐蝕電位較正的α 相即富銅相,在鋯微合金化錳黃銅中的α相更細,數量更多,從而使自腐蝕電位發生了正移。
采用傳統Tafel 擬合計算得出腐蝕速率。與未微合金化的錳黃銅相比,鋯微合金化的錳黃銅腐蝕速率降低了74.5%,說明其電化學耐蝕性更好。
摩擦磨損性能
通過錳黃銅在室溫下的濕摩擦系數隨磨損時間變化曲線可以看出,未合金化和鋯微合金化的濕摩擦系數變動幅度均較小,都有較優的耐磨性能。但是鋯微合金化的錳黃銅具有更低的平均摩擦系數(0.0254),與未合金化的錳黃銅(0.0315)相比降低了19.3%。
通過錳黃銅的磨痕形貌可以看出,摩擦後的表面特征有如下幾點︰
ヾ沿滑動方向上存在著明顯的犁溝,犁溝深且多;