Q1: Dab tsi yog cov siv kev siv ntawm S275NS cov yeeb nkab hauv tsev qauv?
S275NHNEE STEEL YEES tau dav hauv cov thav ntawv, cov kab ntawv txhawb nqa, thiab cov txheej txheem truss-}} Rose tsev. Nws 275 MPa tawm los lub zog tau zoo nrog cov khoom siv zoo li qub thiab muaj zog. Nyob rau hauv cov chaw loj (xws li chaw ntau pob thiab chaw ua haujlwm), feem ntau yog siv rau kev sib npaug ntawm kev sib tw thiab kev ua tiav ntawm kev sib npaug thiab cov kev sib tw siab. Tsis tas li ntawd, cov yeeb nkab zoo heev welditates ntawm -} chaw tshaj tawm, adapting rau cov qauv kev tsim qauv. Nws cov ruaj khov tom qab ib txwm ua rau nws cov khoom zoo rau cov tsev hauv av qeeg hauv av qeeg. Piv rau cov pa roj carbon hlau, s275nh's qes - sov nruj ua kom nws haum rau kev tsim kho nyob rau hauv cov cheeb tsam txias.
Q2: Vim li cas yog S275Nh steel yeeb nkab haum rau kev tsim kho choj?
Choj cov txheej txheem yog raug rau lwm cov kev thauj khoom thiab ib puag ncig. S275NH's -}} 20℃tej yam nyuaj ua kom nws tawm tsam nws tawm tsam me me. Nws lub siab dhia dej siab (elongation ntau dua los yog sib npaug rau 22%) tuaj yeem txiav kev ntxhov siab phem los ntawm lub tsheb kev co. Cov yeeb nkab steel feem ntau yog siv rau choj Piers, koov tav, thiab cable Cheebtsam, ua tiav cov khoom siv los ntawm vuam lossis bolting. Piv rau S355 series, S275NH muaj tus nqi qis dua thiab yog tsim rau kev lag luam tsim ntawm me me thiab nruab nrab-cann txuas hniav. Cov txheej saum npoo av los yog galvanizing tuaj yeem txuas ntxiv kev pabcuam lub neej ntawm cov choj hauv ib puag ncig.
Q3: Cov kev txwv ntawm S275Nuav cov yeeb nkab hauv cov roj av marine engineering?
Txawm hais tias S275NH muaj qee qib ntawm cov yeeb nkab tsis kam, cov yeeb tsis tiv thaiv tau tiv thaiv cov pob zeb galvanic hauv high-}} ntsev tsuag dej hauv hiav txwv. Rau ntev - cov lus siv los yog siv hauv txaws zones, xws li epoxy tawg yog qhov yuav tsum tau ua. Nws corrosion tsis kam yog qis dua rau tias duplex stainless hlau (xws li S32205), yog li nws tsis pom zoo rau dej hiav txwv luam dej piping tshuab. Yog tias siv yog unavoidable, ib txwm phab ntsa tuab kuaj thiab chloride ion kev tswj hwm kev tswj hwm pom zoo. Nyob rau hauv tsis {{10} ntim {}} Cov kabmob qauv qauv ntawm ntug dej hiav txwv, nws tuaj yeem siv ua ke nrog huab cua hlau (xws li S355J0WP).
Q4: Tau S27HN YEEB HLAU YUAV SIV hauv kev siab rau lub nkoj siab tsim? S275NH yog feem ntau tsis siv ncaj qha rau hauv lub nkoj siab ntawm lub cev vim nws qhov kev nyab xeeb muaj peev xwm los ntawm kev suav nrog cov khoom lag luam qis (xws li nkhaus thiab txuas cov kav dej). Yog tias siab {- bearing bearing steel yog xav tau, siab rau cov hlau xws li p265}}- 516 gr.70 (ASTM) yuav tsum tau xaiv. Thaum vuam siab lub Cheebtsam, ntxiv rau kev kho cua sov ntxiv (PWHT) thiab ntau txoj kev kuaj mob tsis yog kev puas tsuaj tsis yog kev puas tsuaj. Tus qauv yuav tsum muaj rau cov yeeb nkab steel yeeb nkab tuab thiab weld seam co coefficients hauv en 1993-4-2 yuav tsum tau txiav txim siab.
Q5: Dab tsi yog qee cov piv txwv ntawm S275NHN cov yeeb nkab ntawv thov siv tshuab siv tau?
Cov yeeb nkab steel no feem ntau siv hauv crane booms, excavator chassis, thiab pob zeb ua twj nyiaj pab txhawb nqa qauv. Nws lub zog siab thiab tawv muaj zog tiv thaiv kom tsis txhob muaj kev cuam tshuam loads. Hauv kev ua liaj ua teb, xws li thaum Harvesterter thav ntawv, nws txias- Firation Facilitates cov kab ke ntawm cov nyom- seem ntawm cov duab. Piv rau siab - lub zog ntawm cov hlau nplaum zoo li S690QL, S275NH yog yooj yim dua los kho thiab hloov hauv lub tshav pob. Qee cov tuam ntxhab siv nws hauv forklift masters, tab sis kev kuaj xyuas tsis tu ncua nyob hauv qab kev thauj khoom yog qhov tsim nyog. Tsoos hnav tsis kam tuaj yeem txhim kho ntxiv los ntawm kev txhaj tshuaj peening lossis dej txias.
