Qhov cuam tshuam rau Mechanical Properties

 

Lub zog:
Decarburization txo cov ntsiab lus carbon ntawm cov hlau. Feem ntau hais lus, carbon yog ib qho tseem ceeb ntxiv dag zog rau lub zog steel. Raws li cov ntsiab lus carbon tsawg, lub zog ntawm cov hlau nto yuav poob qis. Piv txwv li, tom qab ib tug decarburization txheej txheem, ib tug tsawg - carbon "mos txheej" yuav tsim nyob rau saum npoo ntawm cov hlau. Rau qee cov khoom siv hlau uas dais tensile, dabtsi yog khoov thiab lwm yam khoom, cov txheej mos no yuav dhau los ua qhov txuas tsis muaj zog thiab tuaj yeem deform nyob rau hauv ib qho me me sab nraud quab yuam.
Txawm li cas los xij, rau qee cov hlau uas yuav tsum tau ua tom ntej (xws li txias stamping), qhov nruab nrab decarburization tuaj yeem txo qhov tawv tawv, uas yog qhov zoo rau kev ua thiab kev tsim thiab txhim kho txoj kev zoo. Piv txwv li, hauv kev tsim tsheb, tom qab tsim nyog decarburization ntawm cov hlau rau qee lub tsheb lub cev, cov kab nrib pleb thiab lwm yam tsis zoo yuav tshwm sim tsawg dua thaum lub sij hawm stamping txheej txheem.

 

Toughness:
Cov txheej txheem decarburization tuaj yeem hloov lub microstructure ntawm cov hlau, yog li cuam tshuam rau nws cov toughness. Yog hais tias decarburization ua rau tsim ib co coarse ferrite qauv nyob rau saum npoo ntawm cov hlau, lub toughness ntawm cov hlau yuav zoo tuaj. Qhov no yog vim ferrite nws tus kheej muaj kuj zoo toughness. Txawm li cas los xij, yog tias cov txheej txheem decarburization tsis raug tswj kom zoo, qee qhov tsis xws luag (xws li micro - tawg) yuav raug tsim los yog kev faib tawm ntawm lwm cov ntsiab lus hlau yuav raug hloov, uas tuaj yeem txo qhov toughness ntawm cov hlau.
Rau qee cov hlau uas siv nyob rau hauv qhov kub thiab txias, xws li cov hlau rau cov nkoj polar, cov nyhuv ntawm decarburization ntawm toughness yog qhov tseem ceeb dua. Yog hais tias decarburization ua rau lub toughness ntawm cov hlau txo, cov hlau feem ntau yuav muaj nkig tawg ntawm qhov kub thiab txias, yog li ua rau muaj kev nyab xeeb.

 

Hardness:
Decarburization yuav txo qhov hardness ntawm cov hlau. Qhov no yog vim qhov txo qis ntawm cov ntsiab lus carbon ua rau txo qis ntawm cov carbides, thiab carbides yog ib qho tseem ceeb ntawm kev txhim kho cov hardness ntawm cov hlau. Hauv qee qhov kev thov uas yuav tsum tau hnav - tsis kam, xws li qhov chaw ntawm cov khoom siv kho tshuab, yog tias decarburization tshwm sim, qhov hnav - tsis kam ua haujlwm yuav poob qis.
Txawm li cas los xij, qee zaum, xws li cov hlau uas xav tau kev txiav, txo qhov tawv tawv tuaj yeem txhim kho qhov kev ua tau zoo thiab txo cov cuab yeej hnav.

 

 

 

 

 

Nyob rau hauv Lloyd's Register of shipping, lub hom phiaj lub zog nkoj daim hlauLR Qib A,LR Qib B,LR Qib D

thiabLR Qib Efeem ntau yog siv los tsim lub cev nkoj.Qib A nrog rau qhov kub tsis tshua muaj kev cuam tshuam

xeem ntawm chav centidegree, Qib B yog ntawm 0 degree, Qib D yog rho tawm 20 degree, thiab Qib E yog rho tawm 40 degree. Lwm yam

LR Qib AH32, LR Qib AH36, LR Qib AH40, LR Qib DH36, LR Qib DH40,

LR Qib EH36, LR Qib eh40.

 

Qhov cuam tshuam rau Corrosion Resistance
Nyob rau hauv ib txwm muaj xwm txheej, decarburization yuav hloov qhov chaw microstructure ntawm hlau thiab tsim ib tug kuj hlau - nplua nuj txheej txheej. Cov txheej saum npoo no tuaj yeem tsim cov yeeb yaj kiab oxide ruaj khov hauv qee qhov chaw corrosive, yog li kev txhim kho corrosion ntawm cov hlau. Piv txwv li, nyob rau hauv ib co tsis muaj zog - acidic ib puag ncig, tom qab decarburization, cov ntsiab lus ferrite nyob rau saum npoo ntawm cov hlau nce, thiab cov hlau oxide tiv thaiv zaj duab xis tuaj yeem tsim tau sai dua, ua rau cov txheej txheem corrosion.
Txawm li cas los xij, yog tias decarburization ua rau tsim cov qauv xoob lossis tsis sib xws ntawm cov hlau, nws yuav ua rau qhov nruab nrab corrosive ntau dua nkag mus rau hauv cov hlau sab hauv thiab txo cov corrosion kuj. Piv txwv li, nyob rau hauv ib puag ncig corrosive uas muaj chloride ions (xws li ib puag ncig marine), yog tias cov qauv ntawm cov hlau decarburized puas lawm, chloride ions tuaj yeem nkag tau yooj yim dua rau hauv cov hlau sab hauv thiab ua kom cov hlau tsis zoo.

 

 

 

Vim li cas thiaj xaiv peb?
Peb txaus siab rau peb lub peev xwm los muab cov kev cai daws teeb meem rau peb cov neeg siv khoom cov kev xav tau tshwj xeeb.
Peb txheeb xyuas thiab sib piv cov khoom dhau los thiab cov xwm txheej tam sim no ntawm peb LR Shipbuilding Steel Phaj, thiab tsim cov kev qhia tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom ntseeg peb kom xa cov khoom zoo Cold-rolled Steel khoom raws sij hawm thiab ntawm pob nyiaj siv.
Peb nruj me ntsis siv cov kev pab cuam sov so thiab kev xav tom qab muag, ua raws li kev txhim kho kev ua haujlwm zoo.
Peb muab ntau hom Cold-rolled Steel khoom kom tau raws li cov neeg siv khoom xav tau.
Peb ua raws li cov neeg siv khoom-centric thiab hom-taw qhia kev lag luam lub tswv yim, thiab txuas ntxiv muab cov neeg siv khoom lag luam txhim khu kev qha thiab zoo heev thiab cov kev pabcuam.
Peb lub Hoobkas tau cog lus los txhawb nqa cov qauv siab tshaj plaws ntawm kev nyab xeeb thiab zoo.
Txhua tus neeg ua haujlwm ntawm peb lub tuam txhab thiab txhua lub tuam haujlwm ua haujlwm ua ke los ua ke kev tswj hwm kev lag luam, kev tshaj lij thev naus laus zis, kev txheeb cais ntau thiab kev kawm ideological.
Peb cov khoom siv Cold-rolled Steel paub txog lawv cov kav ntev thiab kev ntseeg tau.
Kev vam khom rau qhov zoo tshaj plaws thiab muaj txiaj ntsig zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg siv khoom.

Cim npe nrov: Lr shipbuilding steel phaj, Tuam Tshoj lr shipbuilding steel phaj lwm tus neeg, hoobkas