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

天津黃銅瓦屋面

銅瓦(wa)軸承屬于滑動(dong)軸承,因為它以(yi)配合使用較低滑動(dong)摩察系(xi)數(shu)的材料制成,軸承與(yu)軸之間是(shi)面接觸,所(suo)以(yi)適用范圍是(shi)大(da)負荷(he)、低轉速部位,…

相關內容
在線留言
詳情內容
content details

銅(tong)(tong)(tong)(tong)瓦(wa)軸承(cheng)屬(shu)于滑動軸承(cheng),因為(wei)它(ta)以(yi)配合使用(yong)(yong)較低(di)(di)滑動摩察(cha)系數(shu)的(de)(de)材料(liao)制成(cheng),軸承(cheng)與軸之間是(shi)面接觸,所以(yi)適用(yong)(yong)范圍是(shi)大負荷、低(di)(di)轉(zhuan)(zhuan)(zhuan)速(su)部(bu)位,如軋鋼機(ji)(ji)以(yi)及發動機(ji)(ji)的(de)(de)曲軸、連(lian)桿中,一般不用(yong)(yong)于高(gao)(gao)轉(zhuan)(zhuan)(zhuan)速(su)的(de)(de)機(ji)(ji)構中,對鋼軸來(lai)說所謂銅(tong)(tong)(tong)(tong)軸瓦(wa)常用(yong)(yong)的(de)(de)是(shi)巴氏合金(jin)(銅(tong)(tong)(tong)(tong)錫合金(jin)瓦(wa)),現(xian)在(zai)多用(yong)(yong)高(gao)(gao)錫鋁基(ji)合金(jin)作為(wei)軸瓦(wa)減低(di)(di)摩擦系數(shu)的(de)(de)材料(liao),當然也有適用(yong)(yong)燒(shao)結(jie)銅(tong)(tong)(tong)(tong)合金(jin)材料(liao)制成(cheng)的(de)(de)銅(tong)(tong)(tong)(tong)套(tao)(整體銅(tong)(tong)(tong)(tong)軸承(cheng)),或者燒(shao)結(jie)的(de)(de)銅(tong)(tong)(tong)(tong)套(tao)由于結(jie)構上多孔隙能存(cun)油,用(yong)(yong)于較高(gao)(gao)轉(zhuan)(zhuan)(zhuan)速(su)處可(ke)能好一點(dian)。




在線留言

LEAVE A MESSAGE