Hnyav-lub luag haujlwm tshuab txiav nyom siv cov khoom siv nrog ntau yam kev ua tau zoo los xyuas kom meej ntev - lub sijhawm, kev ua haujlwm ruaj khov nyob rau hauv siab -load thiab ua haujlwm nyuaj.
Hais txog cov txheej txheem txiav, cov hniav - cov khoom tseem ceeb uas ncaj qha cuam tshuam thiab puas tsuaj - feem ntau yog tsim los ntawm siab - lub zog alloy steels, xws li 65Mn, 60Si2Mn, lossis chromium- molybdenum alloy steel. Tom qab kev kho cua sov xws li quenching thiab tempering, cov ntaub ntawv no nthuav tawm tshwj xeeb hardness thiab toughness; Qhov no ua kom tsis yog tsuas yog kev txiav ntse tab sis kuj ua rau cov chipping lossis deformation thaum ntsib cov pob zeb lossis cov nyom tawv. Cov hniav shafts thiab discs feem ntau yog tsim los ntawm nruab nrab - carbon alloy structural steel (piv txwv li, 45 steel los yog 40Cr) thiab undergo quenching thiab tempering kev kho mob los txhim kho tag nrho cov rigidity thiab torsional lub zog, yog li ua kom ruaj khov thaum lub sij hawm siab - kev sib hloov ceev.
Cov thav duab thiab vaj tse, uas feem ntau dais tag nrho cov txheej txheem load, feem ntau yog fabricated los ntawm siab-lub zog qis- alloy steel los yog tuab- phab ntsa steel seem. Qee lub tshuab loj dua ntxiv siv cov txheej txheem welded steel kom ntxiv dag zog tag nrho thiab cuam tshuam. Rau cov qauv uas muaj lub teeb yuag, aluminium alloys yuav raug siv los txo lub tshuab tag nrho qhov hnyav -yog li txhim kho maneuverability thiab roj efficiency- yam tsis muaj kev cuam tshuam lub zog ntawm cov qauv. Kev tiv thaiv kev tiv thaiv thiab cov cuab yeej pabcuam feem ntau yog tsim los ntawm kev cuam tshuam -cov khoom siv hluav taws xob tsis zoo lossis cov ntawv hlau stamped; cov no pab tiv thaiv qhov ejection ntawm nyom clippings thiab pob zeb, yog li txhim kho kev ua hauj lwm kev nyab xeeb.
Cov khoom tseem ceeb nyob rau hauv lub cev kis tau tus mob-xws li lub zog, bearings, thiab tsav ncej- zoo sib xws yog tsim los ntawm siab -lub zog alloy steel los yog bearing steel. Cov Cheebtsam no tau txais kev kho mob xws li carburizing thiab quenching lossis deg hardening kom ua rau lawv hnav tsis kam thiab kev pabcuam lub neej. Cov lem los yog cov log tsheb yog tsim los ntawm kev puas tsuaj heev- cov roj hmab tiv taus, feem ntau ntxiv nrog cov qauv hlau hlau, los xyuas kom muaj kev hloov pauv thoob plaws hauv thaj chaw nyuaj thiab thaum lub sijhawm ua haujlwm ntev, tsis tu ncua.