歐美成人黃色視頻: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)(xing)和異形(xing)(xing)(xing)兩種,異形(xing)(xing)(xing)管有(you)方形(xing)(xing)(xing)、橢圓(yuan)形(xing)(xing)(xing)、三角(jiao)形(xing)(xing)(xing)、六角(jiao)形(xing)(xing)(xing)、瓜子(zi)形(xing)(xing)(xing)、星形(xing)(xing)(xing)、 帶(dai)翅管多種復雜形(xing)(xing)(xing)狀(zhuang)。******直徑達(da)650mm,最小(xiao)直徑為 6mm。根據用(yong)途不(bu)同, 有(you)厚(hou)壁管和薄壁管。無縫鋼管主要用(yong)做石油地質(zhi)鉆探(tan)管、石油化(hua)工用(yong)的(de)裂(lie)化(hua)管、鍋(guo) 爐(lu)管、軸承管以及汽(qi)車、拖拉機(ji)、航空用(yong)高精度結構鋼管。
20#無縫鋼管用(yong)(yong)(yong)途很廣泛。一(yi)般用(yong)(yong)(yong)途的(de)無(wu)縫鋼(gang)管由普通的(de)碳素結(jie)構鋼(gang)、低合金(jin)結(jie)構鋼(gang)或合金(jin)結(jie)構鋼(gang)軋(ya)制,產量最多,主要(yao)用(yong)(yong)(yong)作輸送(song)流體的(de)管道或結(jie)構零(ling)件。.2、根據用(yong)(yong)(yong)途不(bu)同(tong)分(fen)三類供(gong)應:a、按(an)化(hua)學成(cheng)分(fen)和機械性能(neng)供(gong)應;b、按(an)機械性能(neng)供(gong)應;c、按(an)水(shui)壓試驗供(gong)應。按(an)a、b類供(gong)應的(de)鋼(gang)管,如用(yong)(yong)(yong)于承(cheng)受液體壓力,也要(yao)進行水(shui)壓試驗。3、專門(men)用(yong)(yong)(yong)途的(de)無(wu)縫管有鍋爐用(yong)(yong)(yong)無(wu)縫管、化(hua)工電(dian)力用(yong)(yong)(yong),地質用(yong)(yong)(yong)無(wu)縫鋼(gang)管及石油用(yong)(yong)(yong)無(wu)縫管等多種。
20#無縫鋼管具有中空截面,大量(liang)用作(zuo)輸(shu)送流體(ti)的管(guan)(guan)道(dao),如輸(shu)送石油、天然氣(qi)、煤氣(qi)、水及(ji)某些固(gu)體(ti)物料(liao)的管(guan)(guan)道(dao)等(deng)。鋼(gang)管(guan)(guan)與圓鋼(gang)等(deng)實心鋼(gang)材相比,在(zai)抗彎(wan)抗扭強度相同時,重量(liang)較輕(qing),是(shi)一種經濟截面鋼(gang)材。
廣(guang)泛(fan)用于制(zhi)(zhi)造(zao)結構件(jian)和機械零件(jian),如(ru)石油(you)鉆桿、汽車傳動(dong)軸、自行車架以及建(jian)筑施工(gong)中(zhong)用的鋼腳手架等用鋼管制(zhi)(zhi)造(zao)環形零件(jian),可(ke)提高材料(liao)利用率,簡化(hua)制(zhi)(zhi)造(zao)工(gong)序,節約材料(liao)和加工(gong)工(gong)時,已廣(guang)泛(fan)用鋼管來制(zhi)(zhi)造(zao)。