草莓視頻app在線下載:20#無縫鋼管廠家現貨生產：無縫鋼管由圓鋼經過高溫穿孔制成，表面上無焊縫的鋼管，稱為無縫鋼管。根據生產方法，無縫管分熱軋管、冷軋管、冷拔管、擠壓管等。按照斷面形狀，無縫鋼管分圓(yuan)形(xing)(xing)和異(yi)形(xing)(xing)兩種，異(yi)形(xing)(xing)管(guan)(guan)(guan)有(you)方形(xing)(xing)、橢(tuo)圓(yuan)形(xing)(xing)、三角形(xing)(xing)、六角形(xing)(xing)、瓜子形(xing)(xing)、星形(xing)(xing)、 帶翅管(guan)(guan)(guan)多種復雜形(xing)(xing)狀。******直徑達650mm，最小直徑為 6mm。根據用(yong)(yong)途不同， 有(you)厚壁管(guan)(guan)(guan)和薄(bo)壁管(guan)(guan)(guan)。無(wu)縫(feng)鋼(gang)管(guan)(guan)(guan)主要用(yong)(yong)做(zuo)石油(you)地質鉆探管(guan)(guan)(guan)、石油(you)化(hua)工用(yong)(yong)的裂(lie)化(hua)管(guan)(guan)(guan)、鍋(guo) 爐管(guan)(guan)(guan)、軸承管(guan)(guan)(guan)以及(ji)汽車、拖(tuo)拉機(ji)、航空用(yong)(yong)高精度結構(gou)鋼(gang)管(guan)(guan)(guan)。

　　20#無縫鋼管用(yong)途(tu)(tu)(tu)很廣泛。一般用(yong)途(tu)(tu)(tu)的無(wu)(wu)縫(feng)鋼(gang)管(guan)(guan)(guan)由(you)普通的碳素結(jie)構(gou)鋼(gang)、低合金(jin)結(jie)構(gou)鋼(gang)或合金(jin)結(jie)構(gou)鋼(gang)軋制(zhi)，產量最多(duo)，主要(yao)用(yong)作輸送流(liu)體的管(guan)(guan)(guan)道或結(jie)構(gou)零件。.2、根(gen)據用(yong)途(tu)(tu)(tu)不(bu)同分三類(lei)供(gong)應(ying)：a、按(an)化(hua)學(xue)成分和機械性能供(gong)應(ying);b、按(an)機械性能供(gong)應(ying);c、按(an)水壓試(shi)驗供(gong)應(ying)。按(an)a、b類(lei)供(gong)應(ying)的鋼(gang)管(guan)(guan)(guan)，如用(yong)于承受液體壓力(li)，也要(yao)進行水壓試(shi)驗。3、專門(men)用(yong)途(tu)(tu)(tu)的無(wu)(wu)縫(feng)管(guan)(guan)(guan)有(you)鍋爐用(yong)無(wu)(wu)縫(feng)管(guan)(guan)(guan)、化(hua)工電力(li)用(yong)，地質(zhi)用(yong)無(wu)(wu)縫(feng)鋼(gang)管(guan)(guan)(guan)及石油用(yong)無(wu)(wu)縫(feng)管(guan)(guan)(guan)等多(duo)種。

　　20#無縫鋼管具有(you)中空截(jie)(jie)面，大(da)量用作輸送(song)流體的管(guan)(guan)道，如輸送(song)石(shi)油、天然(ran)氣(qi)、煤氣(qi)、水及某些固體物料的管(guan)(guan)道等。鋼(gang)(gang)管(guan)(guan)與圓鋼(gang)(gang)等實心(xin)鋼(gang)(gang)材(cai)相(xiang)比，在抗彎抗扭強度相(xiang)同時(shi)，重量較(jiao)輕，是(shi)一種經濟截(jie)(jie)面鋼(gang)(gang)材(cai)。

　　廣(guang)(guang)泛用(yong)(yong)于制造(zao)(zao)(zao)結構件(jian)和(he)(he)機(ji)械零件(jian)，如石(shi)油鉆桿、汽車傳動(dong)軸、自行車架以及建筑施工中(zhong)用(yong)(yong)的鋼腳(jiao)手架等用(yong)(yong)鋼管制造(zao)(zao)(zao)環形零件(jian)，可提高材料利用(yong)(yong)率(lv)，簡化制造(zao)(zao)(zao)工序，節(jie)約(yue)材料和(he)(he)加(jia)工工時，已廣(guang)(guang)泛用(yong)(yong)鋼管來制造(zao)(zao)(zao)。