2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov roj hauv lub tank quench ua kom cov hlau txias sai thiab sib npaug. Yog tias cov hlau tsis txias sib npaug rau qee qhov laj thawj, ces cov hniav tuaj yeem ua rau tawg lossis tawg. … Quenching ntxiab cementite nyob rau hauv lub ferrite thiab tsim ib tug nyuaj steel hu ua martensite. Tam sim no cov hlau yog hardened, nws tuaj yeem tempered.
Vim li cas cov hlau quenched hauv roj tsis dej?
Dej-quenched steels feem ntau yuav nyuaj dua li roj-quenched steels. Qhov no feem ntau yog vim cov thermal conductivity ntawm dej siab dua cov thermal conductivity ntawm cov roj feem ntau (uas kuv paub); yog li ntawd, tus nqi ntawm qhov txias yuav tsawg dua (lossis qis dua) hauv cov roj piv nrog dej.
Vim li cas cov kws ntaus hlau siv roj los tua?
Quenching roj nce cov ntub dej ntawm cov hlau thaum lub sijhawm quenching, uas pab tiv thaiv kev tawg. Roj quenching ua haujlwm zoo tshaj plaws rau riam, hniav, thiab qee cov cuab yeej siv tes vim tias cov hlau no feem ntau raug ntsuas rau cov roj quenching. Tsis tas li ntawd, nws quenches sai dua compressed cua.
Kuv yuav tsum tua dej lossis roj?
Roj yog qhov zoo dua rau cov tsoos quenching nruab nrab ntawm cov dej vim nws txo qhov kev pheej hmoo ntawm kev cuam tshuam los yog tawg los ntawm cov hlau txias ntau sib npaug thiab nrawm dua.
Dab tsi yog cov roj zoo tshaj plaws los tua cov hniav?
Muaj ntau yam khoom noj-qib quenching roj xaiv muaj los siv rau kev ua haujlwm hlau. Ntawm cov kev xaiv no yog zaub,txiv laum huab xeeb, thiab avocado roj. Qee cov roj zaub uas nquag siv yog canola, txiv ntseej, thiab txiv maj phaub roj. Cov roj zaub yog pheej yig heev thiab los ntawm cov khoom siv txuas ntxiv.
Pom zoo:
Cov khoom xyaw twg hauv qab no ua cov tshuaj tsw qab hauv cov tshuaj txhuam hniav?
Sodium lauryl sulfate (SLS) yog surfactant feem ntau siv. YPuas yog tshuaj txhuam hniav puas yog surfactant? Surfactants. Ntau, txawm tias tsis yog tag nrho, tshuaj txhuam hniav muaj sodium lauryl sulfate (SLS) lossis lwm yam surfactants (detergents).
Dab tsi yog cov kua roj lubricating hauv cov kab noj hniav?
Cov txheej txheem epithelial, hu ua mesothelium, muaj ib txheej ntawm avascular ca nucleated hlwb (yooj yim squamous epithelium) uas tsim cov kua roj lubricating. Cov kua dej no muaj qhov sib xws zoo ib yam li cov mucus nyias. Cov hlwb no khi nruj rau cov ntaub so ntswg hauv qab.
Vim li cas cov hniav nyiaj hniav kub?
Tab sis tsis zoo li cov pa roj lossis hluav taws kub, cov hniav nyiaj hniav kub tsis tuaj yeem siv rau cov khoom noj barbecuing lossis haus luam yeeb. Hloov chaw, lawv tau npaj rau kev ua noj zaub mov uas feem ntau ua rau ntawm griddle-pancakes thiab kib qe-nrog rau cov khoom noj uas feem ntau grilled tab sis yog flattop-friendly-steak, burgers, thiab hlais zaub.
Kab mob hauv cov hniav hauv paus hniav?
Tus kab mob hauv paus hniav coj mob hnyav rau nws sawv. Qhov mob hnyav zuj zus thaum koj tom los yog tso siab rau ntawm tus hniav cuam tshuam. Tsis tas li ntawd, koj tuaj yeem hnov mob hniav thaum koj noj zaub mov kub lossis txias thiab dej qab zib.
Yuav tsum cov hniav hauv qab kov cov hniav?
Yuav tsum cov hniav saum toj zaum ntawm cov hniav hauv qab? Cov lus teb luv luv yog yes. Koj cov hniav saum toj yuav tsum zaum pem hauv ntej ntawm koj cov hniav hauv qab. Qhov no tso cai rau cov molars sab saum toj tuaj koom ua ke kom raug nrog koj cov molars hauv qab, thiab ua rau koj cov hniav txiav los ntawm koj cov zaub mov thaum koj zom nws.
