Txoj kev loj hlob ntawm steel tube ntau lawm tshuab pib nrog kev nce ntawm cov tsheb kauj vab kev lag luam, kev siv roj nyob rau hauv thaum ntxov 19th caug xyoo, kev tsim cov nkoj, boilers, thiab aircraft thaum lub sij hawm ob ntiaj teb no tsov rog, kev tsim ntawm thermal fais fab boilers tom qab ntiaj teb no. Tsov rog II, kev txhim kho ntawm kev lag luam tshuaj, nrog rau kev drilling, rho tawm, thiab kev thauj mus los ntawm cov roj thiab cov nkev. Tag nrho cov xwm txheej no tau ua rau muaj kev loj hlob ntawm steel tube kev lag luam nyob rau hauv cov nqe lus ntawm ntau yam, tso zis, thiab zoo.
Cov raj hlau tsis yog tsuas yog siv rau kev thauj cov kua dej thiab cov hmoov av, sib pauv thermal zog, thiab tsim cov khoom siv kho tshuab thiab cov thawv ntim khoom, tab sis lawv kuj yog cov khoom siv hlau siv nyiaj txiag. Kev siv cov raj steel los tsim cov kab sib txuas, cov ncej, thiab cov cuab yeej txhawb nqa rau cov tsev tuaj yeem txo qhov hnyav, txuag 20-40% ntawm cov hlau, thiab ua kom muaj kev tsim kho tshuab raws li lub Hoobkas.
Seamless steel tubes thiab stainless hlau raj yog ob pawg nrog dav daim ntawv thov teb. Seamless steel raj yog ib qho tseem ceeb raw cov ntaub ntawv nyob rau hauv kev lag luam kev tsim kho, feem ntau hu ua "cov hlab ntsha" ntawm kev lag luam.
Seamless raj yog dav siv los ua cov raj rau kev lag luam machinery (feem ntau hydraulic thiab pneumatic lub tog raj kheej raj, hydraulic roj kav, automotive kis ncej puab thiab ib nrab-ncej bushings, bearing steel hlab, siv conveyor idler hlab, luam ntawv thiab dyeing menyuam tub, thiab lwm yam. ), raj rau cov roj av thiab geological industries (roj twj tso kua mis raj, drilling tubes, roj raj, casing kav, laum kav, thiab lwm yam), raj rau kev lag luam chemical (petroleum cracking tubes, high-pressure tubes for chiv, raj rau tshuaj. cov khoom siv thiab cov kav dej), cov raj rau cov chaw nres tsheb fais fab boilers thiab cov khoom siv hluav taws xob, thiab lwm yam.
