Vim li cas cov nkoj siv hlau thauj tog rau nkoj es tsis txhob xeb-pov thawj steel anchors?
Nyob rau tib lub sijhawm, hlau yog tus nqi ntau dua ntawm no. Feem ntau hais lus, kev xaiv ntawm cov khoom siv feem ntau suav nrog nws qhov kev ua tau zoo thiab cov txiaj ntsig kev lag luam, uas yog, kev ua haujlwm siab yog qhov zoo tshaj plaws. Hlau yog ib qho alloy ntawm hlau thiab carbon (thiab lwm yam khoom xws li ib qho me me ntawm S, P, O) nrog cov ntsiab lus carbon ntau dua 2.11%. Cov hlau molten nyob rau hauv lub qhov cub tawg yog ncaj qha nrum thiab ua tiav (cov txheej txheem no yuav tsis rov ua dua), thiab cov hlau feem ntau yuav tsum tau ua los ntawm cov hlau molten. Hauv pretreatment, converter steelmaking, refining sab nraum lub cub tawg, nruam casting thiab lwm yam txheej txheem, feem ntau ntawm cov hlau muaj tsawg tshaj li 1.2% carbon. Hlau yog tawv thiab nkig, steel yog me ntsis softer dua hlau, tab sis muaj zoo toughness (me me deformation yog yooj yim rau rov qab). Rau lub nkoj thauj tog rau nkoj, nws tsuas yog ib qho khoom siv hnyav, thiab hlau txaus. Raws li kev tiv thaiv corrosion, nws yog qhov tseem ceeb thib ob, uas tuaj yeem daws tau lwm txoj hauv kev. Txawm hais tias nws tuaj yeem' daws tsis tau (nws' nyuaj heev los daws), nws yog tus nqi ntau dua li cov hlau.
Turbocharger
Qhov zoo: Tsis siv lub tshuab tso zis hluav taws xob, thiab muaj kev ua haujlwm siab dua.
Qhov tsis zoo: vim yog siv lub tshuab tso pa tawm, yuav muaj turbo lag, uas yog ib qho tseem ceeb hauv kev txhim kho txij li Tsov Rog Ntiaj Teb Zaum Ob. Tam sim no, marine accessories muaj xws li ntxaib turbo systems thiab sib txawv geometry turbocharging. Txhawm rau txhim kho, tab sis tseem ua tsis tiav. Tsis tas li ntawd, cov hniav yog ncaj qha nyob rau hauv kev sib cuag nrog high-temperature tso pa roj, thiab cov ntaub ntawv uas siv yuav tsum tau ua hauj lwm tsis tu ncua ntawm high speeds thiab high kub.
Supercharger
Lub hauv paus ntsiab lus ntawm kev ua haujlwm: Siv cov khoom siv kis tau tus mob, lub zog ntawm lub cav crankshaft tsav kev sib hloov ntawm cov tshuab compressor kom nce siab kom tsawg thiab ua tiav cov txiaj ntsig supercharging. Cov khoom siv kis tau tus mob muaj xws li siv hlua, gearboxes lossis kua gearboxes.
Disadvantages: engine tso zis hwj chim yuav tsum tau noj, tshwj xeeb tshaj yog thaum siv nyob rau hauv high-altitude aircraft, horsepower piv noj yog heev siab thiab efficiency yog tsis zoo.
Lub hauv paus ntsiab lus ntawm kev ua haujlwm: ncaj qha siv lub tshuab hluav taws xob los tsav cov hniav kom tig thiab ua kom huab cua.
Qhov zoo: yuav tsis muaj hysteresis, thiab lub zog tso zis yog tswj tau zoo. Hluav taws xob yog lub zog uas tuaj yeem khaws cia. Nws tuaj yeem khaws cia ua ntej thaum qhov kev xav tau ntawm cov zis tsawg, lossis nws tuaj yeem tau txais los ntawm kev sib tsoo braking; lub zog ntawm lub tshuab supercharger tsis tuaj yeem khaws cia ua ntej.
Qhov tsis zoo: Yog tias tus nqi ntawm qhov tam sim no tsis loj heev thiab qib ntawm kev txhawb nqa yog txwv, tus kheej-ntsia hluav taws xob turbocharger yuav luag tsis muaj txiaj ntsig; Lub tshuab hluav taws xob zoo turbocharger xav tau ntau lub zog hluav taws xob, uas nyob ntawm qhov tshwj xeeb muaj zog tsim hluav taws xob tsim thiab siv hluav taws xob xa hluav taws xob, nws qhov poob yuav ntau dua li cov khoom siv hluav taws xob uas xa hluav taws xob los ntawm tawv tawv, tab sis hluav taws xob hluav taws xob yog lub zog uas tuaj yeem khaws cia.
Dual supercharger
Ob lub superchargers raug ntsia rau tib lub sijhawm. Siv tshuab thiab turbocharging tshuab ua piv txwv. Thaum tsis tshua muaj ceev, txhua yam supercharging yog siv, thiab nyob rau hauv high speeds, mechanical supercharging yog muab tua. Lub sijhawm no, turbocharging tuaj yeem muab lub peev xwm supercharging txaus; Cov tuam txhab tsheb tseem tab tom txhim kho thiab txhim kho hluav taws xob supercharging thiab Nrog lub tshuab turbocharged twin-turbo, BMW tau tsim ib qho triple turbocharger.