金(jin)屬【石墨軸承(cheng)】的特征與使用的註(zhu)意(yi)事(shi)項(xiang)
在(zai)設計(ji)用油脂或低(di)黏(nian)性(xing)流體潤滑(hua)的(de)金(jin)屬石墨軸承(cheng)時(shi)應(ying)註(zhu)意(yi)的事(shi)項(xiang)：潤滑(hua)從(cong)流體潤滑(hua)轉(zhuan)為(wei)邊界潤滑(hua)時(shi)，軸承(cheng)性(xing)能(neng)變化(hua)很大。首(shou)先要(yao)有(you)良(liang)好(hao)的潤滑(hua)條(tiao)件①油脂的供給量(liang)均勻(yun)且(qie)充分(fen)。②負荷低較(jiao)有(you)利(li)。③盡(jin)力減低(di)軸承(cheng)的溫(wen)度，以免(mian)油脂的性(xing)能(neng)惡化(hua)。 ④用水和低黏(nian)性(xing)流體潤滑(hua)時(shi)，軸承(cheng)的形(xing)狀和(he)工(gong)作(zuo)間(jian)隙非(fei)常(chang)重(zhong)要。其(qi)次(ci)金屬石墨材(cai)料 通常(chang)采(cai)用含百(bai)分(fen)之八石墨的青(qing)銅(tong)基(ji)或鉛青(qing)銅(tong)基(ji)材(cai)料。
Precautions when designing metal graphite bearings lubricated with grease or low-viscosity fluids: When the lubrication is changed from fluid lubrication to boundary lubrication, the bearing performance varies greatly. First, there must be good lubrication conditions. 1 The supply of grease is uniform and sufficient. 2 low load is more favorable. 3 Try to reduce the temperature of the bearing to avoid deterioration of grease performance. 4 When lubricating with water and low viscosity fluid, the shape of the bearing and the working clearance are very important. Secondly, the metallic graphite material usually uses a bronze-based or lead-bronze-based material containing eight percent graphite.