Cov ntaub ntawv siv rau jacks txawv nyob ntawm lawv hom thiab daim ntawv thov, tab sis tuaj yeem faib ua ob hom: hlau thiab hlau.
Ua ntej, cia peb saib cov khoom siv hlau. Hauv cov khoom siv sib xyaw ua ke, cov qauv tseem ceeb feem ntau yog ua los ntawm siab - lub zog steel. Cov hlau muaj cov khoom siv zoo heev, xws li lub zog siab, zoo toughness, thiab hnav tsis kam, ua rau nws tiv taus lub zog loj thiab kev sib txhuam tsim thaum lub sijhawm ua haujlwm. Cov pa roj carbon nruab nrab, tshwj xeeb tshaj yog 45 # steel, yog siv dav hauv kev tsim khoom vim nws cov khoom siv zoo heev. Tsis tas li ntawd, qee qhov siab- kawg lossis tshwj xeeb- lub hom phiaj jacks, xws li cov siv hauv kev kho tsheb, tuaj yeem siv qib siab dua -qib alloy steels, xws li chrome vanadium steel. Hom hlau no muaj zog dua hardness thiab hnav tsis kam, ncua lub jack lub neej kev pab cuam.
Dhau li ntawm steel, aluminium alloys kuj tseem siv cov ntaub ntawv hlau hauv kev tsim khoom. Aluminum alloys have advantages such as low density, high strength, and corrosion resistance, making them particularly suitable for manufacturing jacks that require lightweight and durable construction, such as portable jacks. Aluminium alloy jacks tsis yog tsuas yog lub teeb yuag, yooj yim rau nqa thiab khiav lag luam, tab sis lawv cov kev tiv thaiv corrosion kuj tso cai rau lawv siv rau ncua sij hawm nyob rau hauv ib puag ncig hnyav yam tsis yooj yim tawg.
Tsis tas li ntawd, qee qhov jacks yog ua los ntawm cov khoom siv hlau, xws li cov ntaub ntawv sib xyaw ntawm cov hlau thiab txhuas alloy. Cov khoom sib xyaw no ua ke nrog lub zog siab ntawm cov hlau nrog lub teeb ntawm aluminium alloy, tso cai rau lub jack kom muaj peev xwm txaus -cov kabmob muaj peev xwm thaum txo qhov hnyav thiab txhim kho kev yooj yim ntawm kev siv.
Hauv kev siv tswv yim, kev xaiv ntawm cov khoom siv jack yuav tsum xav txog qhov chaw ua haujlwm thiab cov xwm txheej. Piv txwv li, jacks siv nyob rau hauv qhov chaw ntub dej los yog corrosive ib puag ncig yuav tsum tau ua los ntawm cov ntaub ntawv uas zoo dua corrosion kuj; thaum nyob rau hauv cov xwm txheej uas yuav tsum tau txav mus los tsis tu ncua, yuav tsum xaiv cov khoom sib dua thiab nqa tau yooj yim dua. Nyob rau tib lub sijhawm, cov khoom siv jack yuav tsum ua raws li cov qauv kev lag luam thiab cov cai tswj kev nyab xeeb kom ntseeg tau tias nws muaj kev nyab xeeb thiab kev ntseeg siab thaum siv. Tam sim no peb muaj cov khoom no hauv Tshuag; peb cov jacks slim yog me me tab sis muaj zog, haum rau siv hauv cov tshuab hnyav hauv qhov chaw kaw. Thov hu rau peb kom paub ntau ntxiv.
