1. Txhim kho Corrosion (Fretting Corosion)
Fretting corrosion yog qhov feem ntau tsis ua hauj lwm hom ntawm tinned connectors. Tin yog yooj yim oxidized hauv huab cua, thiab oxide txheej tsis muaj conductive. Lub txheej oxide yog nkig thiab pov tseg yooj yim. Thaum cov hlau txuas txuas kawg rau hauv daim txiag kawg, nws yog qhov yooj yim kom tshem tawm qhov chaw tiv tauj vim muaj kev sib txhuam ntawm cov khoom siv. Qhov oxide txheej pov tseg, ua kom pom cov txheej txheej tin, uas tuaj yeem ua cov coj zoo tsis muaj cuam tshuam rau kev siv ib txwm.
Txawm li cas los xij, hmoov tsis zoo, thaum kev sib nrig sib koom ua tiav, vim muaj kev nthuav tawm thermal thiab kev cog lus tshwm sim los ntawm kev vibration lossis kub, qhov chaw sib tiv tauj ntawm cov ntsiab lus yuav qis me ntsis (qib micron). Kev sib cuag ntawm tin nrog huab cua ua rau oxidation theem nrab ntawm tin ntawm qhov chaw sib cuag, thiab txheej txheej oxide no tsis yooj yim rhuav tshem, uas yuav ua rau lub impedance ntawm kev sib cuag saum npoo nce, uas ua rau muaj kev sib txuas tsis zoo. Qhov no hu ua fretting corrosion.
Daim duab hauv qab no qhia tau hais tias qhov tsim cov txheej txheem ntawm fretting corrosion:
(1) Thaum pib sib txuam, cov tin oxide txheej tawg thiab lub txheej txheej xau tuaj tawm, paub tseeb txog kev sib cuag hluav taws xob;
(2) Qhov chaw sib tiv tauj txav kom nthuav tawm cov txheej tshiab txheej tin. Cov txheej txheej tin yog nthuav tawm rau cov cua, ua ib txheej txheej tshiab oxide;
(3) Cov ntsiab lus sib kis tau txav ntau zaus, thiab cov tin txheej oxide residue sau ntau ntxiv;
(4) Qhov seem yuav khaws cia rau qee yam, ua rau kev sib cav sib ceg, uas ua rau lub tshuab hluav taws xob sib txuas.
2. Qhov xwm txheej ntawm lub davhlau ya nyob twg nrog fretting corrosion
Kev xeb tsis zoo, zoo li cov xim tsaus nti ntawm cov hluav taws xob. Smudges feem ntau tshwm sim nyob rau ntawm qhov chaw ntawm kev sib cuag hluav taws xob tiag tiag. Daim duab hauv qab no qhia pom muaj qhov tsis txaus siab rau cov txiv neej lub davhlau ya nyob twg.
Hauv qee qhov xwm txheej tsawg, nws tsis yooj yim kom pom cov dej xeb, thiab qee qhov khoom siv kuaj tshwj xeeb yuav tsum siv los txheeb xyuas lawv.
3. Yuav ua li cas kom tsis txhob txhaws corrosion?
Feem ntau, cov qauv davhlau ya nyob twg yuav tsum tsim kom tsis txhob muaj kev xeb. Cov hauv qab no yog qee qhov kev ntsuas ntxiv los tiv thaiv kev xeb:
(1) Txo tsawg tshaj qhov kev sib txheeb ntawm cov davhlau ya nyob twg kom raug khub: ntxiv cov yeeb yaj kiab lossis cov cim txuas ntxiv tuaj yeem txo qhov txav ntawm cov txuas; lub davhlau ya nyob twg nrog lub siab tiv tauj lub zog, qhov tsis kam mus rau fretting corrosion feem ntau zoo dua lub davhlau ya nyob twg nrog kev sib cuag tsis tshua muaj zog; qhov txuas ntawm tus qauv tsim, Cov ntsiab lus tso cai rau" ntab"
(2) Siv fretting corrosion" tsis raug-GG quot; plating: xws li kub plating lossis nyiaj plating.
(3) Siv cov nplaim hluav taws xob tiv tauj: Cov roj nplua nyeem tuaj yeem ncua qhov tshwm sim ntawm fretting corrosion.
4. Lub chaw tsim video thiab qauv tsim
Cov kev ua yeeb yam hauv qab no yog cov ncauj lus kom ntxaws tsim cov txheej txheem ntawm fretting corrosion:
Thiab yuav ua li cas tiv thaiv fretting corrosion los ntawm cantilever nqaj qauv tsim:
