Kev xaiv thiab qhov sib npaug ntawm Alloying Elements

 

Lub hauv paus rau Element Selection: Thaum alloying LR FH50 steel phaj, alloying ntsiab yuav tsum raug xaiv raws li qhov tshwj xeeb kev siv ib puag ncig thiab yuav tsum tau. Piv txwv li, nyob rau hauv ib puag ncig marine, vim muaj ntau cov tshuaj chloride ions, chromium (Cr), npib tsib xee (Ni), thiab molybdenum (Mo) yog cov tseem ceeb alloying ntsiab. Chromium tuaj yeem tsim cov yeeb yaj kiab oxide ruaj khov, npib tsib xee tuaj yeem txhim kho corrosion kuj thiab txo qhov cuam tshuam rau hauv zos corrosion, thiab molybdenum tuaj yeem txhim kho pitting tsis kam. Txawm li cas los xij, nyob rau hauv ib puag ncig acidic, nws yuav tsum tau txiav txim siab ntxiv cov ntsiab lus xws li titanium (Ti) los txhim kho cov kua qaub.

 

Qhov tsim nyog: Qhov kev faib ua feem ntawm cov ntsiab lus alloying kuj tseem ceeb heev. Muaj kev sib cuam tshuam ntawm cov alloying sib txawv. Piv txwv li, chromium thiab npib tsib xee, thaum ntxiv rau hauv ib qho kev faib ua feem, tuaj yeem tsim cov nyhuv synergistic thiab txhim kho corrosion kuj ntawm stainless hlau. Rau LR DH55 steel phaj, qhov tsim nyog cov ntsiab lus ntawm alloying yuav tsum tau txiav txim siab los ntawm kev sim thiab kev ua haujlwm kom ua tiav qhov zoo tshaj plaws kev ua tau zoo xws li corrosion kuj, lub zog, thiab toughness. Yog tias muaj qee yam khoom ntxiv rau ntau dhau, lwm yam khoom yuav poob qis. Piv txwv li, ntau npaum li cas ntawm molybdenum yuav nce nqi thiab yuav cuam tshuam rau kev ua haujlwm ntawm cov hlau.

 

 

 

 

 

 

 

LR / AH55 ntxiv muaj zog Chemical Composition
Qib	Cov ntsiab lus Max (%)
	C	Si	Mn	P	S	Al	N
LR/FH50	0.21	0.55	1.70	0.035	0.035	0.015	0.020
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.03-0.10	0.02

 

 

Tswj cov txheej txheem Melting

 

Kev Tswj Kub Kub: Thaum lub sij hawm melting txheej txheem, qhov tsim nyog kub yog tus yuam sij kom ntseeg tau tias cov alloying ntsiab yog uniformly incorporated rau hauv cov hlau molten. Cov alloying sib txawv muaj cov ntsiab lus sib txawv. Nws yog ib qho tsim nyog los xyuas kom meej tias qhov kub melting ua rau tag nrho cov ntsiab lus kom tag nrho melted thiab uniformly tov. Piv txwv li, chromium muaj ib qho tseem ceeb melting point. Thaum melting steel uas muaj chromium, qhov kub txaus yuav tsum tau ua kom ntseeg tau tias cov chromium yog melted tag nrho thiab sib npaug ntawm cov hlau molten. Txawm li cas los xij, yog tias qhov kub thiab txias dhau lawm, nws yuav ua rau oxidation ntau dhau ntawm cov hlau molten los yog poob ntawm qee cov ntsiab lus volatile. Yog li ntawd, qhov ntsuas kub yuav tsum tau tswj kom nruj.

 

Lub Sijhawm Tswjhwm: Lub sij hawm melting kuj cuam tshuam cov nyhuv alloying. Lub sijhawm melting txaus tso cai rau cov ntsiab lus alloying kom tag nrho diffused thiab sib npaug sib npaug hauv cov hlau molten. Txawm li cas los xij, lub sij hawm melting ntev dhau los yuav ua rau muaj kev siv zog ntau dua, txo cov khoom siv hluav taws xob, thiab tseem tuaj yeem ua rau muaj teeb meem xws li kev nqus cov pa (xws li hydrogen) los ntawm cov hlau molten, yog li cuam tshuam rau cov hlau zoo. Hauv kev ua haujlwm tiag tiag, lub sijhawm melting tsim nyog yuav tsum tau txiav txim siab raws li cov khoom xws li qib steel, hom rauv, thiab hom khoom ntxiv.

 

 

 

 

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 FH50 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 txhim khu kev qha thiab cov khoom zoo 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 FH50 steel phaj, Tuam Tshoj lr fh50 steel phaj lwm tus neeg, hoobkas