Anchoring Material Hom rau Track Spikes thiab cov tswv yim los txhim kho Sleeper Bond Strength
Vim li cas lub zog ntawm cov resin anchoring tus neeg sawv cev 30% -50% siab dua li ntawm sulfur cement mortar?
Resin anchoring agent yog siab -molecular polymer, uas tsim cov txheej txheem sib khi ntom ntom tom qab kho, nrog lub zog sib txuas nrog cov ntsia hlau loj thiab cov pob zeb pw tsaug zog. Nws txoj kev sib koom ua ke yog ob qho kev txiav txim ntawm kev sib koom ua ke ntawm cov tshuaj lom neeg thiab cov tshuab occlusion. Kev sib raug zoo tshuaj yog ua tiav los ntawm cov tshuaj sib xyaw ua ke ntawm cov khoom siv molecules thiab cov khoom ua vaj tse, thaum cov neeg kho tshuab occlusion cia siab rau tus neeg sawv cev rau kev nkag mus rau hauv cov pores pw tsaug zog los tsim occlusion. Sulfur cement mortar yog cov khoom siv tsis muaj zog, nrog cov porosity siab ntawm cov txheej txheem kev sib txuas tom qab kho, tsuas yog tso siab rau cov tshuab occlusion, yog li daim ntawv cog lus muaj zog tsawg. Tsis tas li ntawd, qhov curing shrinkage tus nqi ntawm cov resin anchoring tus neeg sawv cev tsuas yog 0.5%, thaum cov sulfur cement mortar yog 3%, thiab qhov sib txawv shrinkage yuav ua rau qhov sib txawv ntawm cov sulfur cement mortar thiab cov pw tsaug zog, ntxiv kom txo tau lub zog ntawm daim ntawv cog lus.
Vim li cas cov ntoo pw ntawm qhov zoo tib yam - cov kab nrawm nyiam cov hmoov nplej cement mortar raws li cov khoom siv hlau nplaum?
Ntoo sleepers ntawm dog dig - kab ceev yog ua los ntawm ntoo nrog siab porosity. Sulfur cement mortar tuaj yeem nkag mus rau hauv cov ntoo fiber ntau kom tsim tau zoo txhua yam occlusion. Nws tus nqi tsuas yog 1/5 ntawm cov resin anchoring tus neeg sawv cev, haum rau loj - teev. Ntoo sleepers yog rhiab heev rau qhov kub thiab txias hloov. Lub thermal expansion coefficient ntawm sulfur cement mortar yog ze rau ntawm cov ntoo, thiab cov txheej txheem sib txuas tsis yooj yim rau tawg hauv qhov kub thiab txias. Lub thermal expansion coefficient ntawm resin anchoring tus neeg sawv cev yog txawv heev los ntawm cov ntoo, uas yog ib qho yooj yim ua rau lub tsev txhab nyiaj txheej poob. Yog li ntawd, cov ntoo pw tsaug zog xav tau cov tshuaj sulfur cement mortar, ntsuas tus nqi thiab yoog raws.
Vim li cas nws thiaj li yuav tsum xaiv sai sai - kho resin anchoring tus neeg sawv cev rau cov pob zeb pw ntawm cov kab hnyav -haul kab?
Lub spikes ntawm hnyav- cov kab tsheb thauj khoom muaj zog rub loj, xav tau cov khoom siv thauj khoom los kho sai sai kom tsim tau lub siab - lub zog sib khi txheej. Lub sij hawm kho ntawm ceev ceev -kho resin anchoring tus neeg saib xyuas tsuas yog 1/3 ntawm cov hom zoo tib yam, uas tuaj yeem ua tiav nrawm nrawm thiab txo txoj kab nqes. Nyob rau tib lub sijhawm, tus ntoo khaub lig-kev sib txuas ceev ceev- kho cov resin yog siab dua, thiab lub zog ntawm daim ntawv cog lus yog 20% siab dua li hom zoo tib yam, uas tuaj yeem tiv taus qhov siab - zaus rub lub zog ntawm hnyav- cov kab. Tsis tas li ntawd, lub shrinkage tus nqi ntawm ceev ceev - kho cov khoom yog qis dua, tsis txhob muaj kev sib txuas sib txawv los ntawm qhov shrinkage thiab ua kom lub sij hawm ntev -lub sij hawm sib txuas ruaj khov ntawm tus ntsia hlau loj thiab cov neeg pw tsaug zog.
Dab tsi yog daim ntawv thov Scope thiab kev ua haujlwm tsis txaus ntawm cov cement slurry li cov khoom siv hlau nplaum?
Cov cement slurry yog tsim rau cov pob zeb uas tsis tshua muaj - thauj khoom zoo tib yam - kab nrawm, nrog tus nqi qis thiab kev tsim kho yooj yim. Txawm li cas los xij, nws lub zog ntawm daim ntawv cog lus tsuas yog 1/3 ntawm cov resin anchoring tus neeg sawv cev, thiab lub zog rub tsis tuaj yeem ua tau raws li qhov xav tau ntawm cov kab hnyav - cov kab. Cov cement slurry muaj qhov siab shrinkage tom qab kho, thiab nws yooj yim los tsim qhov sib txawv nrog cov neeg pw tsaug zog, ua rau cov pob txha xoob. Tsis tas li ntawd, cov cement slurry muaj qhov ua haujlwm tsis zoo, thiab yooj yim rau huab cua hauv qhov chaw ntub dej, thiab lub zog ntawm daim ntawv cog lus yuav poob ntau dua 30% dhau sijhawm. Yog li ntawd, cov cement slurry tsuas yog tsim rau cov kab qis qis, thiab cov kab siab - qib yuav tsum xaiv cov resin anchoring agent lossis sulfur cement mortar.
Yuav ua li cas txhawm rau txhim kho kev sib raug zoo ntawm cov khoom siv phom sij thiab cov neeg pw tsaug zog ntawm qhov chaw kom tsis txhob muaj qhov tsis ua haujlwm?
Thaum lub sij hawm ntawm - qhov chaw tsim kho, ua ntej ntxuav cov impurities thiab hmoov av nyob rau hauv lub sleeper anchoring qhov kom paub tseeb tias lub qhov phab ntsa yog huv si thiab txhim kho lub sib txuas quab yuam ntawm cov khoom thiab cov pw tsaug zog. Rau resin anchoring tus neeg saib xyuas, nruj me ntsis tswj qhov piv thiab curing kub. Kev sib txawv ntawm qhov sib piv yuav txo qhov nyiaj tshuav ntawm ntau dua 25%. Rau sulfur cement mortar, kub rau 130-140℃kom ntseeg tau tias cov melting zoo ib yam thiab nkag mus rau hauv cov pores pw tsaug zog. Nyob rau tib lub sijhawm, tus neeg sawv cev sib txuas tuaj yeem muab ntxiv rau cov khoom siv thauj khoom los txhim kho cov tshuaj sib txuas, ua kom lub zog ntawm daim ntawv cog lus los ntawm 15% -20%. Tom qab kev tsim kho, ib qho kev ntsuas rub tawm yuav tsum tau ua kom pom lub zog thauj khoom kom ntseeg tau tias nws ua tau raws li tus qauv.