Seamless steel tubes yog tsim los ntawm pncturing steel ingots los yog khoom tube billets los ua ib tug dawb paug, uas yog ces raug rau kub dov, txias dov, los yog txias txias. Nrog rau qhov hollow cross-section, seamless steel raj tau siv dav los ua cov kav dej xa mus. Piv nrog rau cov khoom siv steel hlau xws li cov kab tuav, seamless steel tubes muab lub teeb yuag lwm txoj hauv kev thaum tswj qhov zoo sib xws bending thiab torsional lub zog, ua rau lawv ib qho kev lag luam steel siv dav hauv kev tsim cov khoom siv thiab cov khoom siv kho tshuab, suav nrog steel scaffolding rau cov roj drilling. .
Kev tsim kho keeb kwm ntawm Seamless Steel Tubes
Kev tsim cov seamless steel raj muaj keeb kwm ntev ze li ntawm 100 xyoo. Xyoo 1885, cov kwv tij German Mannesmann tau tsim ob-yob skew dov piercing zeb, ua raws li kev tsim cov yeeb nkab dov zeb hauv xyoo 1891. Xyoo 1903, Swiss inventor RC Stiefel tau qhia txog cov yeeb nkab tsis siv neeg dov zeb (tseem hu ua lub ntsaws. zeb). Cov kev nce qib tom ntej tau coj mus rau qhov tshwm sim ntawm cov yeeb nkab txuas txuas txuas ntxiv, ntsaws mills, thiab ntau lwm cov tshuab txuas ntxiv, kos npe tsim cov kev lag luam niaj hnub seamless steel raj.
Thaum lub sijhawm xyoo 1930, kev txais yuav ntawm peb-yob yeeb nkab dov mills, extruders, thiab lub caij txias dov mills txhim kho ntau yam thiab zoo ntawm cov raj hlau. Nyob rau xyoo 1960, kev txhim kho hauv cov rolling mills tas li, kev taw qhia ntawm peb-yob piercing mills, thiab tshwj xeeb tshaj yog ua tiav daim ntawv thov ntawm stretch txo mills thiab nruam casting billets boosted ntau lawm efficiency thiab ntxiv dag zog rau kev sib tw ntawm seamless hlab tiv thaiv welded hlab.
Los ntawm 1970s, seamless thiab welded raj yog caj dab-thiab-caj dab nyob rau hauv txoj kev loj hlob, nrog lub ntiaj teb no steel raj tso zis ntau zog ntawm tus nqi ntawm ntau tshaj 5% txhua xyoo. Nyob rau hauv Suav teb, txij li xyoo 1953, tau muaj kev tsom mus rau kev tsim cov seamless steel raj kev lag luam, uas tau tsim ua ntej tsim cov txheej txheem tsim muaj peev xwm dov ntau yam loj, nruab nrab, thiab me-inch raj.
Cov raj tooj liab feem ntau dhau los ua cov txheej txheem zoo sib xws, suav nrog skew dov perforation ntawm ingots lossis billets, dov nrog cov yeeb nkab mills, thiab coiling thiab kos cov txheej txheem.
Kev siv thiab kev faib tawm ntawm Seamless Steel Tubes
Siv: Seamless steel tubes, raws li kev lag luam steel seem, ua lub luag haujlwm tseem ceeb hauv kev lag luam hauv tebchaws. Lawv tau dav siv nyob rau hauv ntau yam xws li roj av, tshuaj, boilers, fais fab chaw nres tsheb, shipbuilding, machinery manufacturing, tsheb, aviation, aerospace, zog, geology, kev tsim kho, thiab tub rog industries.
Kev faib tawm:
Los ntawm Hla-Section Shape: Round tubes, irregularly zoo li lub raj
Los ntawm cov khoom siv: Carbon steel tubes, alloy steel tubes, stainless hlau raj, clad kav
Los ntawm txoj kev sib txuas: Threaded kav, welded kav
Los ntawm txoj kev tsim khoom: Kub-dov (extruded, ntsaws, nthuav) kav, txias-dov (kos) kav
Los ntawm Daim Ntawv Thov: Boiler tubes, roj zoo raj, kab kav dej, cov raj xa dej, cov raj xa dej
