1. Cov railway bolts siv tau nrog ob qho tib si tshiab thiab qub pw tsaug zog, thiab yuav tsum tau hloov kho li cas?
Railway bolts tuaj yeem siv nrog ob qho tib si tshiab thiab qub pw tsaug zog, tab sis kev hloov kho nyob ntawm tus neeg pw tsaug zog. Rau cov ntoo / pob zeb pw tsaug zog tshiab, cov qauv bolts (cov khoom siv pw tsaug zog) ua haujlwm ncaj qha. Rau cov qub ntoo pw tsaug zog (hnav los yog tawg), ntev bolts los yog bolts nrog coarser threads yuav tsum tau los xyuas kom meej tuav. Cov pob zeb qub uas muaj cov pob zeb puas lawm yuav tsum tau cov yas yas tshiab ua ntej bolt installation. Cov neeg ua hauj lwm kuj tshawb xyuas cov qub pw tsaug zog tuab- cov laus cov neeg pw tsaug zog tuaj yeem xav tau cov bolts luv dua kom tsis txhob dhau -protrusion. Cov kev hloov kho no ua kom cov bolts ruaj ntseg ob qho tib si tshiab thiab qub pw tsaug zog zoo.
2. Dab tsi ua rau cov tsheb ciav hlau ntxhua khaub ncaws ua rau muaj kev sib tsoo, thiab qhov no kho li cas?
Railway washers warp feem ntau yog vim dhau - nruj, uas compresses lawv tshaj lawv elastic txwv. Kev hloov pauv kub heev (kev nthuav dav / kev sib cog lus) lossis siv cov tshuab ntxhua khaub ncaws hnyav heev tuaj yeem ua rau warping. Txhawm rau kho nws, warped washers hloov tam sim ntawd -lawv tsis tuaj yeem faib lub siab sib npaug. Cov neeg ua haujlwm siv cov tshuab ntxhua khaub ncaws ntawm qhov tseeb tuab (xws li, 3mm rau 20mm bolts) thiab ceev ceev kom ceev lub zog kom tiv thaiv kev sib tsoo yav tom ntej. Rau siab- qhov chaw thauj khoom, cov hlau hnyav hnyav yog siv, vim lawv tiv thaiv kev sib tsoo zoo dua li cov pa roj carbon nyias nyias.
3. Puas muaj txoj kev tsheb ciav hlau tsim los ua haujlwm rau ob lub caij qhuav thiab ntub dej?
Yog, muaj ntau yam railway ceev haum rau ob qho tib si qhuav thiab ntub caij. Kub-dip galvanized ceev tiv thaiv xeb hauv lub caij ntub dej thaum tseem nyob ruaj khov hauv qhuav, plua plav. Cov txiv ntseej stainless hlau tseem muaj ntau yam ntau yam -lawv corrosion kuj ua haujlwm hauv nag, thiab lawv tsis degrade hauv tshav kub qhuav. Cov txiv ntoo no tsis xav tau kev hloov raws caij nyoog; cov neeg ua haujlwm tsuas yog ntxuav lawv (tshem cov plua plav hauv lub caij qhuav, yaug ntsev hauv ntub dej) kom muaj kev ua tau zoo. Tsis zoo li cov txiv ntoo uas tsis muaj coated (uas xeb hauv lub caij ntuj no), cov qauv tsim no ua rau xyoo - huab cua hloov pauv yam tsis muaj teeb meem.
4. Txoj kev tsheb ciav hlau ua haujlwm li cas hauv thaj chaw uas muaj cov av acidic, thiab cov khoom siv twg zoo tshaj?
Railway bolts nyob rau hauv acidic av fim hnyav corrosion, raws li cov av acids zom cov hlau nto. Txheem carbon steel bolts xeb sai sai ntawm no, yog li super duplex stainless hlau bolts yog qhov zoo tshaj plaws -lawv muaj cov ntsiab lus siab chromium / molybdenum los tiv thaiv cov kua qaub. Epoxy-coated alloy steel bolts kuj ua haujlwm rau cov av acidic me ntsis. Cov neeg ua haujlwm txhim kho lub tes tsho yas nyob ib puag ncig bolt shanks los thaiv cov av ncaj qha. Kev tshuaj xyuas tsis tu ncua (txhua 2-3 lub hlis) kuaj xyuas cov kua qaub-induced pitting, thiab cov corroded bolts raug hloov. Cov ntaub ntawv no ua kom cov bolts tiv taus cov av acidic rau 15+ xyoo.
5. Dab tsi yog qhov txawv ntawm "flange bolt" thiab tus qauv railway bolt?
Lub flange ntsia liaj qhov rooj muaj ib tug ua - nyob rau hauv lub voj flange nyob rau hauv nws lub taub hau, tshem tawm qhov yuav tsum tau rau ib tug nyias lub tsev ntxhua khaub ncaws. Lub flange faib lub siab sib npaug, tiv thaiv cov neeg pw tsaug zog / ntsia ntawm kev puas tsuaj. Ib tug qauv railway ntsia liaj qhov rooj tsis muaj flange thiab yuav tsum tau ib tug nyias washer rau siab tis. Flange bolts yog siv nyob rau hauv qhov chaw nruj (piv txwv li, nruab nrab ntawm qhov chaw pw tsaug zog) qhov chaw ntxhua khaub ncaws nyuaj rau nruab. Standard bolts muaj ntau dua rau kev siv dav, vim lawv pheej yig dua thiab yooj yim dua rau qhov chaw. Flange bolts txuag lub sijhawm hauv kev teeb tsa, thaum cov txheej txheem bolts muab kev yooj yim nrog hom ntxhua khaub ncaws.