Cov ntsiab lus ntawm cov ntsiab lus

Txheem

Skos
nkaws
(Zhernova)
deflection
yas
Hardness
Parallel
tua hluav taws
Lub cev txhav
Xeb
Xwmfab
Ua siab ntev
Zog

Skos

Lub bevel muab tso rau ntawm ntug ntawm ib qho khoom yog lub ntsej muag uas tsis yog perpendicular (ntawm txoj cai kaum) rau lwm lub ntsej muag ntawm cov khoom. Piv txwv li, cov hniav ntawm ib rab riam yog bevelled.

nkaws

Lub brittleness ntawm cov khoom yog ib qho kev ntsuas ntawm qhov yooj yim npaum li cas nws yuav tawg thiab tawg es tsis stretch los yog shrink thaum muaj zog quab yuam siv rau nws.

(Zhernova)

Nce cov hlau uas protrude saum npoo ntawm ib yam khoom.

deflection

Deviation yog ib qho kev ntsuas ntawm qhov ntau npaum li cas cov khoom txav (tsav). Qhov no tuaj yeem yog nyob rau hauv load, raws li nyob rau hauv load deflection, los yog nyob rau hauv cov khoom nws tus kheej qhov hnyav, raws li nyob rau hauv ntuj deflection.

yas

Ductility yog lub peev xwm ntawm cov khoom siv los hloov nws cov duab lossis ncab hauv kev ntxhov siab yam tsis muaj kev tawg.

Hardness

Hardness yog ib qho kev ntsuas ntawm qhov zoo ntawm cov khoom tiv thaiv khawb thiab hloov nws cov duab thaum lub zog siv rau nws.

Parallel

Thaum ob qhov chaw lossis kab nyob ntawm tib qhov deb ntawm ib leeg raws lawv qhov ntev, i.e. lawv yuav tsis sib tshuam.

tua hluav taws

Hardening yog txheej txheem ntawm cov hlau ua kom txias sai thaum lub sijhawm tsim khoom, feem ntau siv dej.

Qhov no yog ua raws li ib feem ntawm kev kho cua sov kom ua tiav cov khoom hlau uas xav tau xws li lub zog thiab hardness.

Lub cev txhav

Stiffness los yog stiffness yog ib qho kev ntsuas ntawm ib yam khoom lub peev xwm los tiv thaiv deflection los yog deformation ntawm nws cov duab thaum lub zog siv rau nws.

Xeb

Rusting yog ib hom kev xeb uas cov hlau muaj hlau nkag mus. Qhov no tshwm sim thaum cov hlau no tsis muaj kev tiv thaiv nyob rau hauv lub xub ntiag ntawm oxygen thiab noo noo nyob rau hauv cov huab cua.

Xwmfab

Ob sab yog hu ncaj nraim nrog kev hwm rau ib leeg yog tias lub kaum sab xis ntawm lawv yog 90 (txoj cai kaum).

Ua siab ntev

Yam khoom tolerances yog tso cai yuam kev nyob rau hauv lub cev qhov ntev ntawm ib yam khoom. Tsis muaj ib yam khoom twg yog qhov loj npaum li cas, yog li kev kam rau siab yog siv los xyuas kom meej qhov zoo sib xws ntawm qhov loj me. Piv txwv li, yog tias koj txiav ib daim ntoo ntev 1 m, nws yuav ua tau 1.001 m. Los yog ib millimeter (0.001 m) ntev tshaj qhov xav tau. Yog tias qhov kam rau ua rau daim ntoo no yog ± 0.001 m, ces qhov no yuav ua tau. Txawm li cas los xij, yog tias qhov ua siab ntev yog ± 0.0005 m, qhov no yuav tsis lees txais thiab yuav tsis dhau qhov kev xeem zoo.