剛(gang)剛(gang)起步的我國一類汽車用精密無縫(feng)(feng)鋼(gang)管開發(fa)是關鍵小(xiao)口(kou)徑無縫(feng)(feng)鋼(gang)管
汽車用(yong)(yong)(yong)精(jing)(jing)密無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)屬(shu)于(yu)高(gao)級機械(xie)結構管(guan)(guan)(guan)(guan)系列。根據國外的(de)技術(shu)(shu)發展趨勢，能用(yong)(yong)(yong)焊接(jie)管(guan)(guan)(guan)(guan)的(de)都(dou)不用(yong)(yong)(yong)無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)。所(suo)用(yong)(yong)(yong)的(de)精(jing)(jing)密無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)，一(yi)類(lei)(lei)是精(jing)(jing)密無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)去(qu)除(chu)內毛(mao)刺后(hou)直接(jie)使用(yong)(yong)(yong)，另一(yi)類(lei)(lei)是精(jing)(jing)密無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)去(qu)除(chu)內毛(mao)刺經冷加工和熱(re)處(chu)理(li)后(hou)使用(yong)(yong)(yong)。目前(qian)，我國后(hou)一(yi)類(lei)(lei)精(jing)(jing)密無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)的(de)開發剛剛起步，作為專用(yong)(yong)(yong)管(guan)(guan)(guan)(guan)，應該從抓坯料、成形、焊接(jie)、去(qu)除(chu)內毛(mao)刺、冷加工、無(wu)(wu)氧(yang)化熱(re)處(chu)理(li)、高(gao)精(jing)(jing)度矯直和檢測等關鍵技術(shu)(shu)人手，帶動(dong)精(jing)(jing)密無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)行業的(de)技術(shu)(shu)進步。
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