GCr15SiMo的接觸疲勞壽命L1和L5分別比GCr15SiMn提高73%和68%，在相同使用條件下，用G15SiMo鋼制造的軸承的使用壽命是GCr15SiMo鋼的兩倍。近年來，我國還開發(fā)了能節(jié)約能源、節(jié)約資源和抗沖擊的GCr4軸承鋼。與GCr15相比，GCr4的沖擊值提高了66%～14%，斷裂韌性提高了67%，接觸疲勞壽命L1提高了12%。GCr4鋼軸承采用高溫加熱?表面淬火熱處理工藝。
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古代金屬表面處理主要有“鎏金”、“鎏銀”和鍍錫。常用的是齊法，即將被鍍金屬溶于中，然后采用擦涂的方法將其被覆于基材之上。該技術一般應用于銅器的裝飾處理。已知早期的鎏金物件為山東曲阜出土的長臂銅猿，墓葬年代為春秋戰(zhàn)國之交。陶弘景后來對齊的作用指出：“能消化金、銀，使成泥，人以鍍物是也。”古代的玻璃制造術也是在周朝開始發(fā)展起來的。年在陜西省寶雞茹家莊地區(qū)發(fā)掘出的西周都市遺址中，發(fā)現(xiàn)四種不同形式的玻璃扁株和綠色玻璃管狀項鏈。
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