好姑娘视频完整版免费观看,亚洲AV无码A片在线观看蜜桃,亚洲丁香五月激情综合,在厨房乱子伦对白,久久九色综合九色99伊人

產品中心

甘肅黃銅瓦屋面

銅瓦軸承(cheng)屬于(yu)滑動(dong)軸承(cheng),因為它(ta)以(yi)配合使用(yong)較低(di)滑動(dong)摩察系數的(de)材料制成,軸承(cheng)與軸之間是(shi)面接觸(chu),所(suo)以(yi)適用(yong)范圍是(shi)大負荷(he)、低(di)轉速部位,…

相關內容
在線留言
詳情內容
content details

銅(tong)(tong)瓦(wa)(wa)(wa)軸(zhou)(zhou)(zhou)承(cheng)屬(shu)于(yu)(yu)(yu)滑(hua)動軸(zhou)(zhou)(zhou)承(cheng),因為它以配合(he)(he)使用(yong)(yong)(yong)(yong)(yong)較(jiao)低滑(hua)動摩察系數的(de)(de)(de)材料制成(cheng),軸(zhou)(zhou)(zhou)承(cheng)與軸(zhou)(zhou)(zhou)之間是面接(jie)觸,所以適用(yong)(yong)(yong)(yong)(yong)范(fan)圍是大負荷(he)、低轉(zhuan)速部位,如(ru)軋(ya)鋼機(ji)以及發動機(ji)的(de)(de)(de)曲軸(zhou)(zhou)(zhou)、連桿中,一(yi)般不(bu)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)(yu)高(gao)轉(zhuan)速的(de)(de)(de)機(ji)構(gou)中,對鋼軸(zhou)(zhou)(zhou)來說所謂(wei)銅(tong)(tong)軸(zhou)(zhou)(zhou)瓦(wa)(wa)(wa)常用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)是巴氏合(he)(he)金(銅(tong)(tong)錫合(he)(he)金瓦(wa)(wa)(wa)),現在(zai)多(duo)(duo)用(yong)(yong)(yong)(yong)(yong)高(gao)錫鋁基合(he)(he)金作(zuo)為軸(zhou)(zhou)(zhou)瓦(wa)(wa)(wa)減低摩擦系數的(de)(de)(de)材料,當然(ran)也有(you)適用(yong)(yong)(yong)(yong)(yong)燒(shao)結銅(tong)(tong)合(he)(he)金材料制成(cheng)的(de)(de)(de)銅(tong)(tong)套(整體銅(tong)(tong)軸(zhou)(zhou)(zhou)承(cheng)),或者燒(shao)結的(de)(de)(de)銅(tong)(tong)套由(you)于(yu)(yu)(yu)結構(gou)上多(duo)(duo)孔隙能存油,用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)(yu)較(jiao)高(gao)轉(zhuan)速處(chu)可能好一(yi)點。




在線留言

LEAVE A MESSAGE