Raws li cov khoom siv tseem ceeb hauv kev tsim kho cov khoom siv, kev xaiv tau ntawm cov khoom siv ntawm lub cev, cov khoom siv tshuab ua kom tau raws li cov khoom siv sib xyaw ua ke thiab muaj kuab txhua yam kom tau raws li cov kev tswj hwm ntawm ntau yam. Kab lus no yuav qhia cov hom, kev ua cov yam ntxwv kev paub, thiab cov ntaub ntawv raug xaiv ntawm cov khoom siv loj hauv kev siv tshuab.
I. High {{{{{}} Lub zog txheem qauv hlau: lub hauv paus ntawm load - cov kabmob thiab ruaj khov
High - Lub zog txheem txheem hlau yog cov khoom siv tseem ceeb tshaj plaws rau cov tshuab xws li thav duab, thiab caj npab. Hom hlau no feem ntau ua tiav qhov tseem ceeb nce ntxiv rau cov khoom siv hluav taws xob xws li kev tswj hwm tau (MN), ntxiv los ntawm kev tswj cov khaub thuas (TMCP) lossis cov txheej txheem kho cua sov. Piv txwv li, qis {{{{{{}}} {{}}}}}}}}}}}}}}}
Nyob rau hauv xyoo tsis ntev los no, kev siv dav dav ntawm microalloyed steels (NB) ntxiv rau tag nrho cov phiaj xwm ntawm cov phiaj hlau. Piv txwv li, qee qhov txheej txheem excavator siv NM400 hnav- Tsis muaj ntau dua lossis sib npaug nrog 400 HBW). Los ntawm cov tawv tawv saum npoo av, cov thoob txiav lub neej sib txuas yog txuas ntxiv ntawm 30%, txo tus nqi kho.
Ii. Hnav -} Cov ntaub ntawv resistant: tus yuam sij rau kev tawm tsam kev sib txhuam thiab kev cuam tshuam
Siv tshuab ua haujlwm (xws li excavator hniav, breaker tho cov pas nrig xws li cov xuab zeb, gravel}, thiab ore, tso siab heev ntawm kev coj tsis kam. Tsoos kev ua siab zoo ib txwm - cov hlau mangs (xws li Zgmn13), thaum muaj kev nyuaj siab rau qis- kev nyuaj siab hnav cov xwm txheej. Cov kev daws teeb meem tam sim no suav nrog:
1. High {{{}} chromium cam khwb cia hlau: muaj 12% rau kev ua kom tawv nqaij tawv (xws li HARC 58-65, feem ntau yog siv hauv lub puab tsaig crusher hnab.
2. Composite Cladding Cov Khoom Siv: Lub Tupsten Carbide (WC) lossis Nickel {1} Taug Kev Ntawm Qhib Kev Ua Si Ntau Tshaj Plaws Ntau Tshaj HRC 60.
3. Ceramic {-}} Reinforced Composite: xws li al₂o₃- tic cermeet. Txawm hais tias tus nqi kim heev, cov ntaub ntawv tau sim hauv siab {4 4}}}}}} kev hnav tsis kam dua tsib zaug ntau dua li cov ntaub ntawv ib txwm muaj.
III. Lub teeb sib zog ua ke alloys: ib qho kev sib tawg hauv lub zog hluav taws xob thiab kev ua pob mane
Txhawm rau txo cov roj kev siv thiab txhim kho cov cuab yeej yooj yim xws li aluminium alloys muaj ntau ntxiv, thiab qee yam tsis yog {{{}} cov kabmob qauv. Ntawm lawv, 6061-t6 aluminium alloy (ntom ntom nti alloy (ntom 2.7 g / tensile muaj zog txhawb nqa ntau dua los yog sib luag rau nws cov khoom lag luam zoo heev thiab machinesility. Magnesium alloy (ntom 1.7-1.9 g /M³ tso rau hauv lub ntiaj teb no, tuaj yeem ua tiav qhov kev tso tsheb hlau hluav taws xob tsis tshua muaj roj.
Tshwj xeeb, thaum carbon fiber txhawb koob kom yas (CFRP) tau muaj kev siv tau yooj yim rau hauv aerospace, nws tseem nyob hauv kev tsim kho tshuab vim yog tus nqi thiab koom nrog cov txheej txheem. Tam sim no, nws tsuas yog siv rau suab thiab rwb thaiv tsev kub hauv cov khoom kim heev.
IV. Corrosion -} Cov ntaub ntawv resistant: ib qho thaiv kev tiv thaiv rau qhov chaw hnyav
Dej hiav txwv engineering, mining, thiab lwm yam kev thov yuav tsum muaj cov ntaub ntawv nrog cov khoom siv corrosion zoo heev. Stainless hlau (xws li 304 thiab 316L), vim lawv cov chromium (ntau dua los yog sib npaug hauv cov chaw nres tsheb. Galvanized steel (kub - dip coating thickness ntau dua los yog sib npaug ntawm cov hlau corrosion ntau dua li 0.05 mm / xyoo los ntawm kev rho tawm lub cev.
Rau cov acidic tsis tshua muaj kev ua haujlwm, cov hlwv roj (xws li 2% thiab 3% thiab 3% Ntau dua los yog sib npaug rau 34).
Tag
Kev tsim kho cov ntaub ntawv rau kev siv cov tshuab tau ib txwm ua kom nce ib puag ncig lub zog sib npaug, qhov hnyav, thiab ib puag ncig kev yoog. Nyob rau yav tom ntej, nrog cov ntawv thov kev lag luam ntawm cov khoom siv ntxiv (xws li siv cov khoom siv hauv zos raws li cov khoom lag luam hauv zos raws li cov kev lag luam tseem ceeb) yuav dhau los ua kev lag luam tseem ceeb. Cov kws tsim khoom yuav tsum txiav txim siab ua haujlwm, cov nqi kav li lub neej, thiab muab cov nqi kev ntseeg tau kom ua tiav cov kev daws teeb meem zoo.
