Cov khoom siv rau keyed threaded inserts yuav tsum tau xaiv raws li qhov chaw ua haujlwm (kub, corrosion, load). Cov ntaub ntawv tseem ceeb tau muab faib ua hlau, tsis yog- hlau, thiab cov khoom sib xyaw, raws li cov lus qhia hauv qab no. Cov khoom siv hlau yog cov kev xaiv tseem ceeb, suav nrog cov pa roj carbon steel (xws li Q235, 45 #), uas muaj lub zog zoo thiab ua haujlwm tau zoo, tsim nyog rau kev sib txuas zoo li qub lossis lub teeb vibration nyob rau hauv ib txwm ua haujlwm; stainless hlau (xws li 304, 316L), uas muaj zoo heev corrosion kuj thiab oxidation tsis kam, haum rau cov av noo thiab corrosive ib puag ncig (xws li cov khoom siv sab nraum zoov, tshuaj scenarios); thiab hlau alloy (xws li chromium-} molybdenum steel), uas muaj lub zog siab thiab kub tsis kam, haum rau kev kub siab, siab siab, thiab hnyav hnyav (xws li cov khoom siv cav, kev tsim kho tshuab).
Tsis yog- cov khoom siv hlau feem ntau yog nylon thiab yas, feem ntau yog siv rau hauv txheej txheej ntawm cov txiv ntoo xauv, siv lawv cov elastic deformation kom ua tiav qhov xauv. Haum rau qhov kub thiab txias qhov xwm txheej, lawv raug nqi qis dua, tab sis tsis zoo siab - kub tsis kam. Cov ntaub ntawv sib xyaw ua ke muab qhov zoo ntawm ob qho tib si hlau thiab tsis yog- hlau.
Piv txwv li, cov hlau latch lub cev ua ke nrog lub nylon xauv lub nplhaib thiab lub tshuab ntxhua khaub ncaws hlau uas muaj cov tshuaj tiv thaiv- cov nplaum nplaum sib npaug ntawm lub zog thiab kev ntsuas kev ua haujlwm, ua rau nws tsim nyog rau kev ua haujlwm feem ntau. Hauv qee daim ntawv thov tshwj xeeb, tooj liab alloys yog siv vim lawv cov conductivity zoo heev thiab corrosion kuj, ua rau lawv haum rau cov khoom siv hluav taws xob sib txuas.
