Huab cua-Resistant Enhancement Technology thiab Adaptation Solutions rau txawv thaj chaw huab cua rau Elastic Clips
Dab tsi yog cov cuab yeej tseem ceeb rau kev txhim kho huab cua tsis kam ntawm elastic strips hauv siab - kub thiab siab - cov av noo?
Lub hauv paus ntawm kev txhim kho cov huab cua tsis kam ntawm elastic strips nyob rau hauv siab - kub thiab siab - cov av noo yog tiv thaiv - xeb thiab tiv thaiv - kev laus. Ua ntej, huab cua-resistant caij nplooj ntoos hlav steel 09CuPCrNi-A raug xaiv raws li cov khoom, uas muaj corrosion-cov khoom tiv taus xws li tooj liab thiab chromium. A dense passivation film is formed on the surface in high-temperature and high-humidity environments, with a corrosion rate<=0.03mm/year. Kev kho deg siv cov kub-dip galvanizing + sealant ob- txheej txheej tiv thaiv txheej txheem, nrog zinc txheej thickness Ntau dua lossis sib npaug li 120μm. Lub sealant yog ua los ntawm polyurethane nrog lub thickness Ntau dua los yog sib npaug li 20μm, uas tuaj yeem sau cov pores ntawm zinc txheej thiab tiv thaiv dej vapor thiab corrosive media los ntawm invading. Cov qauv ntawm cov elastic strip yog optimized, nrog arc hloov pauv ntxiv ntawm cov cheeb tsam kev ntxhov siab, thiab lub vojvoog hloov pauv tau nce los ntawm 5mm mus rau 10mm kom txo tau qhov kev pheej hmoo ntawm kev ntxhov siab corrosion hauv siab - kub thiab siab - av noo ib puag ncig. Tsis tas li ntawd, cov khoom siv dej tsis sib haum tau muab tso rau ntawm qhov chaw teeb tsa ntawm cov hlua elastic. Cov gaskets yog ua los ntawm nitrile roj hmab nrog qhov kub tsis kam ntawm -40℃~ 120 degree, uas tuaj yeem thaiv dej nag thiab ya raws los ntawm kev nkag mus rau qhov sib txawv ntawm cov hlua elastic thiab cov tsheb ciav hlau. Lub zog elastic strip yuav tsum tau mus rau kev ntsuam xyuas kev laus, nrog rau qhov elastic attenuation tus nqi tsawg dua los yog sib npaug li 5% tom qab laus rau 1000 teev nyob rau hauv ib puag ncig ntawm 70℃thiab 95% av noo.
Dab tsi yog cov kev ntsuas los txhim kho qhov qis - huab cua kub tsis kam ntawm elastic strips hauv thaj chaw alpine permafrost?
Lub hauv paus ntawm kev txhim kho qhov qis- huab cua kub tsis kam ntawm elastic strips nyob rau hauv alpine permafrost thaj chaw yog los txhim kho qis - kub toughness thiab khov -thaw kuj. Ua ntej, qis-kub caij nplooj ntoos hlav steel 60Si2MnDR raug xaiv raws li cov khoom siv, uas muaj kev cuam tshuam lub zog Ntau dua lossis sib npaug ntawm 34J ntawm -40℃qis kub kom tsis txhob qis-kub nkig tawg. Kev kho deg siv cov txheej txheem zinc infiltration, nrog zinc infiltration txheej thickness Ntau dua los yog sib npaug rau 60μm. Lub zog sib txuas ntawm zinc infiltration txheej yog 3 npaug siab dua li ntawm cov kub-dip galvanizing txheej, thiab nws tsis yooj yim rau tev tawm hauv qab khov -thaw cycles. Lub elastic modulus ntawm lub elastic strip yog optimized. Los ntawm kev kho cov txheej txheem kev kho cua sov, qhov kev hloov pauv ntawm cov qauv elastic ntawm lub elastic strip nyob rau hauv qhov kub ntawm -40℃~ 20℃yog tsawg dua los yog sib npaug rau 5% kom ruaj khov preload. Tsawg-kub los tiv thaiv- loosening roj yog siv thaum lub sij hawm installation, nrog ib tug khov point tsawg tshaj li los yog sib npaug zos rau -55 degree, uas tsis solidify nyob rau hauv qis kub thiab yuav ua tau zoo tiv thaiv xov loosening. Tsis tas li ntawd, lub elastic strip yuav tsum tau mus kuaj lub voj voog khov-thaw, nrog rau qhov preload attenuation tsawg dua lossis sib npaug li 8% thiab lub neej qaug zog ntau dua lossis sib npaug li 2 × 10⁶ lub sijhawm tom qab 50 lub voj voog khov-thaw los ntawm -40℃txog 20 degree.
Dab tsi yog cov ntsiab lus tseem ceeb ntawm kev tiv thaiv-corrosion ntxiv dag zog rau cov qauv elastic strips hauv saline-alkali corrosion cheeb tsam?
Lub hauv paus ntawm kev tiv thaiv-corrosion ntxiv dag zog rau kev tsim cov elastic strips hauv saline-alkali corrosion cheeb tsam yog cais cov erosion ntawm saline-alkali media. Ua ntej, stainless hlau caij nplooj ntoos hlav steel 2Cr13 raug xaiv raws li cov khoom siv, uas muaj kev tiv thaiv corrosion ntau dua 10 npaug siab dua li cov hlau caij nplooj ntoos hlav zoo tib yam hauv cov dej qab ntsev-alkali ib puag ncig, nrog lub zog tensile ntau dua lossis sib npaug rau 850MPa, ua tau raws li cov kev xav tau ntawm cov txheej txheem fastener. Kev kho saum npoo siv cov txheej txheem polytetrafluoroethylene txheej txheej txheej txheej txheej, nrog cov txheej txheej tuab dua lossis sib npaug li 50μm. Polytetrafluoroethylene muaj cov tshuaj tiv thaiv corrosion zoo heev, tuaj yeem tiv thaiv kev yaig ntawm saline -alkali cov kev daws teeb meem, thiab muaj cov ntsev tsuag tshuaj tiv thaiv corrosion lub sij hawm ntau dua lossis sib npaug li 2000 teev. Cov qauv ntawm cov hlua elastic siv cov qauv tsim kom tsis txhob raug ncaj qha ntawm cov xov thiab kev ntxhov siab-cov kabmob ntawm cov hlua elastic mus rau saline- ib puag ncig alkali. Nyob rau tib lub sijhawm, lub tsho insulating thiab tiv thaiv{18}} lub tes tsho corrosion yog ntsia ntawm qhov chaw sib txuas ntawm cov hlua elastic thiab cov tsheb ciav hlau, thiab lub tes tsho yog ua los ntawm polyethylene, resistant rau saline -alkali corrosion. Tsis tas li ntawd, lub installation torque ntawm lub elastic strip yuav tsum nruj me ntsis tswj ntawm 160-180N·m kom ntseeg tau tias cov elastic strip yog ze ze rau txoj kev tsheb ciav hlau thiab txo qhov tshwm sim ntawm crevice corrosion. Lub zog elastic strip yuav tsum tau mus rau qhov kev xeem saline-alkali immersion, tsis muaj xeb lossis hlwv ntawm qhov chaw tom qab immersion hauv 5% NaCl tov rau 30 hnub.
Yuav ua li cas yog cov kev xeem thiab ntsuas ntsuas rau huab cua tsis kam ntawm elastic strips?
Cov qauv kev sim rau huab cua tsis kam ntawm elastic strips suav nrog kev ntsuas corrosion nrawm, qis- ntsuas qhov ntsuas kub thiab ntsuas kev laus. Kev ntsuas corrosion nrawm tau txais kev ntsuas nruab nrab ntsev tsuag, tso cov hlua elastic nyob rau hauv ib puag ncig atomized ntawm 5% NaCl tov, thiab lub sij hawm sim raug kho raws li thaj chaw huab cua, 1000 teev rau siab - kub thiab siab - thaj chaw av noo, thiab 2000 teev rau saline {{7.}}alkali. Qhov qis- qhov ntsuas kub ntawm qhov ntsuas kub siv lub tshuab ntsuas hluav taws xob Charpy pendulum los ntsuas qhov cuam tshuam lub zog ntawm cov hlua elastic ntawm -40℃qis kub los ntsuas nws qhov qis-kub toughness. Kev kuaj kev laus siv lub ntsuas hluav taws xob ultraviolet aging chamber los simulate tshav ntuj irradiation thiab siab - kub thiab siab - av noo ib puag ncig los ntsuas qhov elastic attenuation tus nqi ntawm elastic strip thiab kev ncaj ncees ntawm txheej txheej. Cov ntsuas ntsuas feem ntau suav nrog tus nqi corrosion, cuam tshuam lub zog, elastic attenuation tus nqi thiab txheej adhesion. Tus nqi corrosion Tsawg dua lossis sib npaug ntawm 0.05mm / xyoo yog tsim nyog, qis - qhov kub ntawm qhov cuam tshuam lub zog Ntau dua lossis sib npaug ntawm 34J yog tsim nyog, tus nqi elastic attenuation tsawg dua lossis sib npaug li 5% tom qab kev laus yog tsim nyog, thiab txheej txheej adhesion ntau dua lossis sib npaug rau 5MPa yog tsim nyog. Tsis tas li ntawd, qhov kev xeem daim coupon ntawm qhov chaw yuav tsum tau dai cov qauv elastic ntawm ib sab ntawm txoj kev hauv thaj chaw huab cua, thiab kuaj xyuas lawv cov kev hloov pauv tom qab 1 xyoos ntawm kev pabcuam los xyuas kom meej tias huab cua tiv taus raws li qhov xav tau tiag tiag.
Dab tsi yog cov txheej txheem kev xaiv thiab kev saib xyuas cov tswv yim rau elastic strips nyob rau hauv cov cheeb tsam sib txawv?
Kev xaiv ntawm elastic strips nyob rau hauv ntau qhov chaw huab cua yuav tsum ua raws li lub hauv paus ntsiab lus ntawm "kev hloov pauv huab cua thiab qhov tseem ceeb ntawm kev ua haujlwm". Elastic strips ua los ntawm 09CuPCrNi-Ib yam khoom nrog kub-dip galvanizing thiab sealing kev kho mob raug xaiv rau siab- kub thiab siab - thaj chaw av noo; elastic strips ua los ntawm 60Si2MnDR cov khoom siv nrog zinc infiltration kho yog xaiv rau thaj chaw alpine permafrost; elastic strips ua los ntawm 2Cr13 stainless hlau khoom nrog polytetrafluoroethylene txheej yog xaiv rau saline{10}}alkali corrosion cheeb tsam; elastic strips ua los ntawm 60Si2MnA cov khoom nrog kub-dip galvanizing kev kho mob raug xaiv rau thaj chaw huab cua zoo tib yam. Cov tswv yim kho yuav tsum tau tsim raws li cov yam ntxwv ntawm thaj chaw huab cua. Kev tiv thaiv- kev tshuaj xyuas corrosion ntawm elastic strips yog ua txhua rau lub hlis nyob rau hauv qhov siab - kub thiab siab - cov av noo, thiab zinc txheej puas raug kho raws sij hawm; lub preload ntawm elastic strips raug tshuaj xyuas txhua txhua xyoo ua ntej lub caij ntuj no nyob rau hauv alpine permafrost cheeb tsam, thiab qis{19}}kub los tiv thaiv- xoob roj yog ntxiv; txheej kev ntsuam xyuas ntawm elastic strips yog ua txhua txhua xyoo nyob rau hauv saline -alkali corrosion cheeb tsam, thiab puas coatings yog re- tshuaj tsuag; Kev kuaj xyuas qhov tsis zoo yog nqa tawm txhua xyoo hauv thaj chaw huab cua zoo tib yam txhawm rau txheeb xyuas qhov qaug zog tawg. Tsis tas li ntawd, ib daim ntawv teev tag nrho lub neej ntawm elastic strips yog tsim los sau lub sijhawm teeb tsa, kev nyab xeeb ib puag ncig thiab cov ntaub ntawv ntsuas ntawm elastic strips, thiab cov phiaj xwm kev saib xyuas cov phiaj xwm tau tsim raws li cov ntaub ntawv los txuas ntxiv lub neej kev pab cuam ntawm elastic strips.