Cold drawn seamless steel yeeb nkab chaw tsim tshuaj paus
Piv nrog rau cov khoom siv hlau xws li cov hlau puag ncig, cov yeeb nkab steel yeeb nkab muaj qhov sib npaug thiab torsional lub zog thiab lub teeb yuag. Nws yog ib qho kev lag luam steel hlau. Nws yog dav siv los tsim cov khoom siv thiab cov khoom siv kho tshuab, xws li roj laum yeeb nkab, tsheb sib kis ncej, tsheb kauj vab ncej thiab steel scaffold siv hauv kev tsim kho.
Kev tsim cov nplhaib nrog cov kav hlau tuaj yeem txhim kho kev siv cov khoom siv, ua kom yooj yim tsim cov txheej txheem, thiab txuag cov ntaub ntawv thiab cov sijhawm ua haujlwm, xws li dov bearing rings, Jack tes tsho, thiab lwm yam tam sim no, cov kav hlau steel tau siv dav rau kev tsim khoom.
Seamless steel yeeb nkab rau kev thauj mus los ntawm cov kua dej (GB / t8163-2008) yog cov yeeb nkab seamless steel siv los thauj dej, roj, roj thiab lwm yam dej. Qhov hnyav ntawm cov kua dej steel yeeb nkab: [(sab nraud txoj kab uas hla phab ntsa tuab) * phab ntsa thickness] * 0.02466 = kg / M (qhov hnyav ib meter) nws tsuas yog tsim cov qib sawv cev ntawm cov yeeb nkab steel 10 #, 20 #, Q345
Raws li kev ntsuas qhov nyuaj ntawm Baotou kua yeeb nkab nrog Rockwell hardness tester, tsuas yog HRC thiab HRB nplai feem ntau tau teev tseg hauv Baotou kua yeeb nkab qauv. Rau annealed Baotou kua yeeb nkab cov ntaub ntawv, nws yog feem ntau teev hais tias tus nqi hardness yuav tsum tsis txhob ntau tshaj ib tug tej yam HRB tus nqi sib raug mus rau ntau yam Baotou kua yeeb nkab ntawm txhua hom, uas yog feem ntau nyob rau hauv ntau ntawm 88-96 HRB. Rau quenched thiab tempered martensitic stainless hlau, feem ntau sib xws rau ntau yam ntawm Baotou kua yeeb nkab ntawm txhua hom, nws tau teev tias tus nqi hardness tsis tsawg tshaj li ib co HRC tus nqi, feem ntau nyob rau hauv thaj tsam ntawm 32-46 HRC. Lun nickel turbulence hloov kho yog pom tseeb, tab sis cov tub lag luam hauv Baotou kua yeeb nkab ua lag luam yog siab heev, thiab cov lus hais tseem ruaj khov. Los ntawm qhov xwm txheej ntawm kev ua lag luam ntawm Baotou kua yeeb nkab, qhov chaw ua lag luam tam sim no yog qhov tsis txaus ntseeg, kev lag luam tseem tsis tshua muaj, qhov chaw nres nkoj loj ntawm kev yuav khoom yog ceev faj dua, thiab nws tseem yog qhov tseem ceeb ntawm kev yuav khoom. Tsis tas li ntawd, tus nqi lag luam tam sim no tsis hloov pauv thiab hloov kho, qhov sib txawv hauv cov theem tom qab tseem tsis paub meej, thiab kev ua lag luam tos-thiab-pom huab cua muaj zog heev. Kev soj ntsuam kev ua tau zoo: flattening test, tensile test, impact test, flaring test, hardness test, metallographic test, bending test and nondestructive testing (xws li eddy testing tam sim no, X-ray test thiab ultrasonic test). Nyob rau hauv cov nqe lus ntawm stainless hlau hardness kuaj, Rockwell hardness tester yog ib qho cuab yeej tsim nyog ntawm qhov tseem ceeb. Nws cov cuab yeej siv tau yooj yim thiab yooj yim rau kev khiav lag luam. Nws tuaj yeem nyeem ncaj qha rau tus nqi hardness yam tsis muaj kws tshuaj ntsuam xyuas. Nws muaj kev sim siab ua haujlwm zoo thiab tsim nyog rau cov chaw tsim khoom. Baotou kua raj muaj ntau yam ntxwv thiab muaj qee yam zoo hauv daim ntawv thov teb. Tshuaj ntsuam xyuas: ua cov tshuaj ntsuam xyuas ntawm cov tshuaj muaj pes tsawg leeg ntawm cov khoom, thiab cov tshuaj muaj pes tsawg leeg ua tau raws li tus qauv yuav tsum tau ua. Huab cua siab thiab hydrostatic test: ua qhov ntsuas hydrostatic ntawm Baotou kua yeeb nkab rau kev ua haujlwm siab ib los ntawm ib qho, thiab khaws cia ntawm tus nqi siab tsis pub tsawg tshaj 5 vib nas this yam tsis muaj dej. Qhov ntsuas hydrostatic siab ntawm cov khoom siv pa yog 2.45mpa. Kev ntsuas pneumatic siab yog p = 0.5mpaa. Kev kuaj Corrosion: cov kav dej uas muaj corrosion-resistant Baotou cov kav dej yuav tsum tau sim rau kev tiv thaiv corrosion raws li cov qauv kev cai lossis cov txheej txheem corrosion tau pom zoo los ntawm ob tog, thiab yuav tsum tsis txhob muaj qhov cuam tshuam ntawm intergranular corrosion. Lun Ni tseem qhia txog kev nce thiab poob. Txawm hais tias muaj kev xav rov qab me ntsis hauv lub sijhawm luv luv, nws tau kwv yees tias kev ua lag luam tseem tuaj yeem tuav cov qauv kev poob siab hauv lub sijhawm luv vim muaj kev txwv tsis kam.
