Unveiling txias - Kosn Steel Fibers: Tus Pib Cov Lus Qhia rau Lawv Cov Ntsiab Cai
Vim li cas cov qauv ua pob zeb ua niaj hnub no thiaj li muaj zog thiab ruaj khov, tswj kev ruaj khov txawm tias tsis muaj peev xwm? Cov lus teb feem ntau yog cov lus dag nyob rau hauv cov khoom siv ntxiv: ** Txias - Kos Qauv Hlau Faib **. Tsis zoo li cov khoom siv stand stand, cov hmoov me me no ncaj qha sib xyaw ua ke rau hauv cov pob zeb. Tab sis lawv ua haujlwm li cas raws nraim li cas?
Dab tsi yog txias - Kos duab steel fibers?
Ua ntej, ib daim luv ntawm cov xim muag hlau hlau tau dhau los ntawm cov txheej txheem me me ntawm kev hloov pauv me me - Tus txheej txheem hu ** CEsab kos **.
Qhov no "txias ncab" (ua ntawm chav tsev kub) ua rau muaj kev sib txawv ntawm cov hlau, yog li nce nws lub zog thiab hardness.
Qhov kawg tshwm sim yog siab -} Lub zog steel fibers, feem ntau ncaj, los yog hooked ntawm qhov xaus. Cov fibers tau ntxiv rau pob zeb ua vaj tse, hloov nws los ntawm cov khoom siv khov rau hauv cov khoom sib zog, ductile mentshis cov khoom siv: ** Cov Khoom Siv Fiber Ntau Ntxiv: ** Cov Khoom Siv Fiber Ntau Ntxiv (SFRC) **.
CENTER TSHUAB: Los ntawm kev tawg mus rau Bridging
Kev ua pob zeb ua kom muaj muaj lub zog ua kom muaj zog loj tab sis lub zog qis. Thaum ib qho kev quab yuam sab nraud kom rub tawm nws sib nrug, nws yooj yim tawg, thiab cov kab nrib pleb no propagate sai, thaum kawg ua rau tsis ua haujlwm.
Nov yog nws qhov tsis muaj zog.
Cov khawv koob ntawm txias - Kos duab steel fies nyob rau hauv lawv lub peev xwm los daws cov ntsiab cai no "post- nras cov khoom." Tag nrho cov mechanism tuaj yeem muab cov ncauj lus hauv peb theem tseem ceeb:
Theem 1: Ua ntej kev ua kom tshwm sim - kev sib xyaw ua ke
Thaum cov khoom sib xyaw tshiab, cov hmoov nplej steel yog cov faib tawm hauv cov qhob tshiab. Nyob rau theem no, lawv tsis ua kom nce ntxiv thaum pib lub zog, tab sis lawv cov kev sib txawv ntawm kev sib cais ua rau lub hauv paus rau kev txhim kho tom ntej.
Theem 2: Lub sijhawm pib tawg
Raws li load yog thov, cov qhob nce mus txog nws lub tensile txwv, thiab microcracks pib ua.
Rau cov pob zeb ua ke, qhov no cim kawg ntawm nws qhov kev ua tau zoo. Tab sis nyob rau hauv cov pob zeb fiber ntau txhawb kev ua vaj tse (SFRC), qhov no yog qhov uas cov fibers ua si lawv lub luag haujlwm. ** Theem 3: Tus yuam sij "Bridging" nyhuv (core tshuab) ** ** raws li cov kab nrib pleb uas tseem ceeb tshaj plaws. ** Qhov no yog qhov tseem ceeb tshaj plaws ** Xav txog nws li no: yog tias koj sim rub sib nrug ib daim Velcro, suav me me} **They physically lock the two sides of the crack together.** **For the crack to open further, the force must now:** **1. Rub cov fibers tawm ntawm cov pob zeb ua ke, ** lossis ** ** ** ** ** ** ** ** 2. Ncab, ncab, thiab zom cov fibers. **
Vim li cas txias - Kos duab cov poj niam ua tau zoo hauv txoj haujlwm no
Tsis yog txhua tus fibers raug tsim kom sib npaug. Lub txias txias - kos duab cov txheej txheem xaus cov fibers nrog cov khoom tshwj xeeb uas ua rau lawv tshwj xeeb ntawm kev rov ua dua tshiab:
1. Lub zog tensile: lub txias txias: lub txias txias - Kos duab cov txheej txheem ua ke ntawm cov hlau, ua rau muaj cov muaj zog heev zog. Nws tuaj yeem tiv thaiv tensile yuam uas tsis tau tawg yooj yim.
2. Cov Nyiaj Txiag Zoo Tshaj Plaws: Tus du, tawv tawv, nrog rau tej yam deformation (xws li kev sib txawv ntawm cov qauv), tsim muaj zog kho tshuab hauv cov pob zeb. Qhov kev sib khi no yog qhov tseem ceeb rau kev hloov pauv kev ntxhov siab los ntawm cov pob zeb ua kom muaj fiber.
3. Owalal txhav thiab ductility: lawv yog txhav kom zoo ua kom tau zoo thaum muaj kev cuam tshuam tsis tawg) kom ncab me ntsis ua ntej raug rho tawm lossis tawg. Qhov no tso cai rau lawv nqus ib lub zog tseem ceeb.
Vim yog cov khoom no, kev xaiv 1 (Fiber ntau ntxiv) yuav tsum muaj zog. Lub zog no lub zog yuav tsum yog dab tsi peb hu ** Toubness **.
Qhov tshwm sim: hloov cov khoom ntawm cov pob zeb
Txias - Kos Duab Steel Fibers tau ua haujlwm tom qab pob zeb hloov pauv, hloov cov khoom siv cov khoom:
Nws tsis tiv thaiv kev tawg, tab sis theej tswj hwm nws:Cov nrib pleb tseem tseem, tab sis lawv tsis yog dav thiab rhuav tshem raws li ua ntej; Hloov chaw, lawv nruj nreem khi ua ke, sib sau ntau cov microcacks me me.
Qhov no feem ntau hu ua "kev txhawb nqa ib ntus" vim tus qauv feem ntau thiab ua haujlwm.
Tseem txhim kho nruj heev:Cov pob zeb ua tau nqus tsis sib haum thiab kev co cov khoom uas tsis muaj tawg. Xav txog tias yuav ua li cas cov plag tsev wallors walland ntawm lub siab ntawm cov forklifts hnyav.