Lub hauv paus phaj yog qhov tseem ceeb ntawm lubcrusher, tab sis nws kuj yog qhov hnyav tshaj plaws hnav. High manganese steel raws li cov khoom siv feem ntau siv hauv ob sab phlu, vim nws muaj zog cuam tshuam los yog kev sib cuag nrog sab nraud quab yuam thaum nto yuav sai sai, thiab cov tub ntxhais tseem muaj zog toughness, qhov nyuaj sab nraud thiab sab hauv toughness ob leeg hnav thiab cuam tshuam cov yam ntxwv hauv lub tsis kam mus rau muaj zog cuam tshuam, siab loj, nws hnav tsis kam yog unmatched los ntawm lwm yam ntaub ntawv. Ntawm no los tham txog qhov cuam tshuam ntawm lub ntsiab alloying ntsiab ntawm cov khoom ntawm siab manganese hlau.
1, thaum cov pa roj carbon monoxide cam khwb cia, nrog kev nce ntawm cov ntsiab lus carbon, lub zog thiab hardness ntawm siab manganese hlau yog tsis tu ncua zoo nyob rau hauv ib tug tej yam ntau yam, tab sis lub plasticity thiab toughness yog ho txo. Thaum cov ntsiab lus carbon nce mus txog 1.3%, qhov toughness ntawm cov hlau cam khwb cia yog txo mus rau xoom. Tshwj xeeb, cov ntsiab lus carbon ntawm cov hlau manganese siab ua haujlwm nyob rau hauv qhov kub thiab txias yog qhov tseem ceeb tshwj xeeb, nrog cov ntsiab lus carbon ntawm 1.06% thiab 1.48% ob hom hlau raws li kev sib piv, qhov cuam tshuam toughness sib txawv ntawm ob yog li 2.6 npaug ntawm 20. ℃, thiab qhov sib txawv yog li 5.3 npaug ntawm -40 ℃.
Nyob rau hauv qhov xwm txheej ntawm qhov tsis muaj zog, kev hnav tsis kam ntawm cov hlau manganese siab nce ntxiv nrog cov ntsiab lus ntawm cov pa roj carbon monoxide, vim tias cov tshuaj muaj zog ntxiv ntawm cov pa roj carbon monoxide tuaj yeem txo qhov hnav ntawm abrasive ntawm steel. Nyob rau hauv cov xwm txheej muaj zog, nws feem ntau vam tias yuav txo qis cov ntsiab lus carbon, thiab ib-theem austenitic qauv tuaj yeem tau txais los ntawm kev kho cua sov, uas muaj cov yas zoo thiab tawv thiab yooj yim rau kev ntxiv dag zog thaum lub sijhawm tsim.
Txawm li cas los xij, kev xaiv cov ntsiab lus carbon yog kev sib xyaw ua ke ntawm kev ua haujlwm, cov qauv ua haujlwm, cov txheej txheem casting thiab lwm yam yuav tsum tau ua kom tsis txhob muaj qhov muag tsis pom lossis txo cov ntsiab lus carbon. Piv txwv li, vim tias qhov qeeb qeeb qeeb ntawm cov castings nrog cov phab ntsa tuab, cov ntsiab lus qis dua yuav tsum raug xaiv, uas tuaj yeem txo qhov cuam tshuam ntawm cov nag lossis daus hauv lub koom haum. Thin-walled castings tuaj yeem xaiv kom tsim nyog nrog cov ntsiab lus carbon ntau dua. Qhov txias ntawm cov xuab zeb casting yog qeeb dua li ntawm cov hlau casting, thiab cov ntsiab lus carbon ntawm casting tuaj yeem tsim nyog tsawg. Thaum lub compressive kev nyuaj siab ntawm siab manganese hlau yog me me thiab cov khoom hardness yog tsawg, cov ntsiab lus carbon yuav tsim nyog nce.
2, manganese manganese yog lub ntsiab tseem ceeb ntawm kev ruaj khov austenite, carbon thiab manganese tuaj yeem txhim kho kev ruaj ntseg ntawm austenite. Thaum cov ntsiab lus carbon tsis hloov pauv, qhov nce ntawm manganese cov ntsiab lus yog qhov tsim nyog rau kev hloov pauv ntawm cov qauv hlau rau hauv austenite. Manganese yog soluble hauv austenite hauv hlau, uas tuaj yeem ntxiv dag zog rau cov qauv matrix. Thaum cov ntsiab lus manganese tsawg dua 14%, lub zog thiab cov yas yuav raug txhim kho nrog kev nce ntawm manganese cov ntsiab lus, tab sis manganese tsis haum rau kev ua haujlwm tawv, thiab qhov nce ntawm manganese cov ntsiab lus yuav ua rau kev hnav tsis kam, yog li cov ntsiab lus siab ntawm manganese. manganese tsis tuaj yeem ua rau dig muag.
3, lwm yam silicon nyob rau hauv cov pa ntsiab lus ntau plays lub luag hauj lwm pab nyob rau hauv deoxidation, nyob rau hauv tsis tshua muaj tej yam kev mob, qhov nce ntawm silicon ntsiab lus yog conducive rau kev txhim kho ntawm hnav tsis kam. Thaum cov ntsiab lus silicon siab dua 0.65%, lub siab nyiam ntawm cov hlau tawg tau hnyav dua, thiab feem ntau nws xav tau los tswj cov ntsiab lus silicon hauv qab 0.6%.
Ntxiv 1% -2% chromium rau high manganese steel yog siv los ua cov thoob cov hniav ntawm excavators thiab cov phaj hauv ob sab phlu ntawm lub khob hliav qab crusher, uas tuaj yeem txhim kho qhov hnav tsis kam ntawm cov khoom thiab txuas ntxiv lub neej kev pab cuam. Nyob rau hauv tib lub deformation tej yam kev mob, hardness tus nqi ntawm manganese hlau uas muaj chromium yog siab dua cov hlau tsis muaj chromium. Nickel tsis cuam tshuam rau kev ua haujlwm hardening thiab hnav tsis kam ntawm cov hlau, yog li kev hnav tsis tuaj yeem tuaj yeem txhim kho los ntawm kev ntxiv npib tsib xee, tab sis yuav ua li cas npib tsib xee thiab lwm yam hlau xws li chromium ntxiv rau cov hlau tib lub sijhawm tuaj yeem txhim kho qhov nyuaj ntawm cov hlau. , thiab txhim kho qhov hnav tsis kam nyob rau hauv qhov tsis muaj zog cuam tshuam abrasive hnav.
Cov ntsiab lus tsis tshua muaj hauv ntiaj teb tuaj yeem txhim kho lub zog ntawm cov txheej txheem deformation ntawm siab manganese steel, txhim kho lub peev xwm ntawm cov txheej txheem hardened nrog rau hauv qab matrix, thiab txo qhov muaj peev xwm ntawm tawg ntawm cov txheej hardened nyob rau hauv kev cuam tshuam load, uas yog zoo los txhim kho cov kev cuam tshuam. kuj thiab hnav tsis kam ntawm siab manganese hlau. Kev sib xyaw ua ke ntawm cov ntsiab lus tsis tshua muaj hauv ntiaj teb thiab lwm cov ntsiab lus alloying feem ntau ua tiav cov txiaj ntsig zoo.
Qhov kev sib xyaw ua ke ntawm cov ntsiab lus twg yog qhov kev xaiv zoo tshaj? Cov kev mob siab rau kev ntxhov siab thiab tsis tshua muaj kev ntxhov siab sib haum rau cov txheej txheem sib txawv ntawm cov txheej txheem sib xyaw ua ke, txhawm rau ua si lub zog ua haujlwm thiab hnav tsis kam ntawm siab manganese hlau.
Post lub sij hawm: Oct-10-2024