Koj pom ntau qhov sib tham hauv online hais txog lub zog muaj zog bolts, tab sis thaum nws los txog rau cov ntawv thov tshwj xeeb ntawm 10.9S loj hex ntsia liaj qhov rooj teeb, muaj qhov tsis txaus ntseeg tsis txaus ntseeg. Cov neeg feem ntau tsuas yog xav tias muaj zog ntsia liaj qhov rooj, ua haujlwm hnyav thiab npuaj lawv nyob qhov twg. Qhov tseeb yog ntau nuanced. Qib 10.9S yog ib qho kev cog lus tshwj xeeb-tsawg kawg 1000 MPa tensile lub zog, yam tsawg kawg nkaus 900 MPa tawm los lub zog, thiab qhov 'S' qhia txog qhov loj me feem ntau M12 thiab siab dua. Lub taub hau hex loj yog qhov tseem ceeb rau lub siab torque xav tau kom ua tiav qhov tsim clamp quab yuam. Kev siv tsis raug feem ntau tsis yog hais txog lub bolt tsis ua haujlwm ntawm qhov nro; Nws yog hais txog kev sib koom ua ke, qaug zog, lossis hydrogen embrittlement vim ib tug neeg tau kho nws zoo li cov khoom siv kho vajtse.

Lub ntsiab lus tseem ceeb: Nws yog hais txog kev sib koom ua ke, tsis yog Bolt xwb

Tsis nco qab lub ntsia liaj qhov rooj rau ib pliag. Koj tab tom tsim lossis tswj ib kev sib txhuam-grip kev sib txuas. Qhov ntawd yog qhov tseem ceeb tshaj plaws rau cov 10.9S loj hex teeb. Xav txog kev sib txuas ntawm cov qauv hlau, cov tshuab hnyav hnyav, lossis cov cua turbine flange sib txuas. The bolt’s job is to clamp the plates together so tightly that the load is transferred through friction between the plates, not through shear on the bolt shank. Yog hais tias koj siv lawv nyob rau hauv ib tug shear kev twb kev txuas qhov twg lub bolt lub cev bears tiv thaiv lub qhov, tej zaum koj yuav tau tshaj-hais thiab nkim nyiaj, tshwj tsis yog tias lub loading dynamic yog ib qho tseem ceeb.

Kuv nco qab txog qhov project retrofit ntawm cov qauv kev txhawb nqa conveyor. Thawj qhov tshwj xeeb hu ua 8.8 bolts, tab sis kev co tau ua rau kev sib koom ua ke. Peb hloov mus rau 10.9S teeb nrog calibrated torque txheej txheem. Qhov txawv tsis yog qhov siab dua preload; lub taub hau hex loj tau tso cai rau peb siv ntau qhov hydraulic torque wrenches, kom ntseeg tau tias muaj zog sib npaug ntawm txhua lub bolts. Lub loosening nres. Zaj lus qhia yog tias tus bolt teeb- suav nrog cov tshuab ntxhua khaub ncaws kom raug - ua kom muaj kev daws teeb meem, tsis yog ib qho kev tiv thaiv zoo dua.

Cov tshuab ntxhua khaub ncaws tsis tuaj yeem sib tham. Koj yuav tsum siv cov tshuab ntxhua khaub ncaws tawv hauv qab lub taub hau thiab lub txiv ntoo. Lub siab preload tuaj yeem khawb rau hauv thiab deform cov txheej txheem ntxhua khaub ncaws (los yog cov khoom siv sib txuas), zoo txo ​​cov clamp quab yuam. Qhov no yog qhov yuam kev ntawm qhov chaw classic uas kuv tau pom: bolts torqued rau spec, tab sis nrog mos, ungraded washers, ua rau tag nrho cov kev tawm dag zog tsis muaj txiaj ntsig. Cov txheej txheem yog ib qho system.

Qhov twg lawv ci: Heavy Machinery thiab cov qauv siv

Mining thiab cov cuab yeej txav hauv av yog cov ntaub ntawv kawm. Excavator khiav txuas, loader thoob linkages, crusher ncej sib dhos. Cov no yog cov pob qij txha uas muaj kev ncaj ncees uas ua rau muaj kev poob siab loj heev. A 10.9S loj hex teeb, txhim kho kom zoo, tswj kev sib koom ua ke rigidity, uas yog qhov tseem ceeb rau kev sib xyaw ua ke thiab lub neej qaug zog. Lub taub hau hex loj yog qhov tseem ceeb ntawm no - nws sawv mus rau qhov rov ua dua, muaj kev cuam tshuam loj heev thaum lub sijhawm tu vaj tse yam tsis muaj kev sib tw.

Hauv cov txheej txheem steel prefabricated, zoo li lub tsev khaws khoom trusses lossis mezzanine plag tsev, lawv tau siv nyob rau hauv lub sijhawm sib txuas los yog qhov tseem ceeb bracing nodes. Qhov kom zoo dua ntawm vuam yog qhov ntsuas tau, kuaj xyuas tau ua ntej. Koj tuaj yeem tshawb xyuas lawv nrog lub torque ciaj ntswj thaum kuaj xyuas. Kuv tau ua hauj lwm nrog fabricators uas yog los ntawm cov tuam txhab tshwj xeeb xws li Handan Zitai Fastener Manufacturing Co., Ltd. hauv Yongnian. Lub cheeb tsam ntawd tsom mus rau cov qauv qauv txhais tau tias lawv feem ntau muaj cov cuab yeej thiab cov khoom sib xws rau cov kab loj loj, cov khoom qib siab mus rau kev tshawb fawb. Lawv qhov chaw nyob ze ntawm txoj kev thauj loj xws li Beijing-Guangzhou Railway thiab Beijing-Shenzhen Expressway tsis yog qhov chaw muag khoom xwb; nws txhais tau hais tias muaj kev ntseeg siab logistics rau kev txiav txim ntau ntawm cov sijhawm tsim kho, uas tseem ceeb thaum koj lub crane nyob ntawm qhov chaw thiab tos.

Ib qho kev hloov maj mam: hauv kev siv cov qauv, qhov ua tiav qhov tseem ceeb. Ntau 10.9S bolts rau kev siv cov qauv muaj a Kub-DIP Galvanized los yog mechanically galvanized txheej. Koj yuav tsum suav rau qhov kev sib txhuam coefficient ntawm txheej hauv koj qhov kev suav torque. Ib tug dub oxidized ntsia liaj qhov rooj thiab ib tug galvanized ntsia liaj qhov rooj torqued rau tib tus nqi yuav ua tau txawv clamp rog. Cov specs ntawm Zitai lub vev xaib, piv txwv li, feem ntau piav qhia qhov no, uas yog vim li cas kev kuaj xyuas cov ntaub ntawv tsim khoom yog ib feem ntawm txoj haujlwm.

Cov Pitfalls thiab yuav ua li cas kom zam tau lawv

Hydrogen embrittlement yog qhov ntsiag to killer ntawm lub zog siab bolts. Nws tuaj yeem ua rau muaj kev puas tsuaj, ncua sij hawm nkig tsis ua haujlwm hnub lossis lub lis piam tom qab kev teeb tsa. Nws tau qhia thaum lub sijhawm plating (yog tias electroplated) lossis tuaj yeem tshwm sim los ntawm qee txoj kev ntxuav. Qhov kev xyaum zoo tshaj plaws yog qhia cov bolts uas tau ua tiav kom tsis txhob muaj nws, zoo li cov plated nrog cov kauj ruam tsim nyog. Rau cov ntawv thov tseem ceeb, peb feem ntau xaiv rau geometrically coated (xws li Dacromet) los yog cov phosphated bolts los ntawm cov neeg muab kev ntseeg siab rau qhov kev pheej hmoo no tag nrho.

Lwm qhov pitfall yog over-torquing nyob rau hauv lub teb. Qhov kev ntxias kom muab nws lwm ugga-dugga nrog rab phom cuam tshuam yog siab. Tab sis nrog 10.9S ntsia liaj qhov rooj, koj feem ntau ua haujlwm nyob rau hauv cov yas deformation cheeb tsam ntawm qhov tsim torque-nruj nkhaus. Tshaj-torquing tuaj yeem ncab lub ntsia liaj qhov rooj tshaj nws cov txiaj ntsig, ua rau muaj kev ntxhov siab so thiab qhov kawg poob ntawm lub zog clamp. Qhov no yog qhov loj hex pab dua - nws txhawb kev siv cov cuab yeej torque kom zoo dua li qhov cuam tshuam rau ntawm lub qhov cub khib nyiab. Kuv tau pom bolts snapped huv si thaum lub installation vim hais tias ib tug neeg coob siv ib rab phom uncalibrated teem rau qib qis bolt.

Tsis txhob sib tov thiab sib tov. Lub 10.9S ntsia liaj qhov rooj yuav tsum tau ua ke nrog cov txiv ntseej ntawm qhov sib txuam lossis cov khoom siv siab dua (feem ntau yog 10 txiv ntseej). Siv 8 txiv ntoo ntawm 10.9 ntsia liaj qhov rooj yog ib daim ntawv qhia rau xov stripping nyob rau hauv siab preload. Lub teeb yuav tsum tuaj matched.

Tshaj qhov pom tseeb: Qee qhov niche tab sis tseem ceeb siv

Lawv tsis yog rau cov qauv zoo li qub xwb. Hauv loj lub nkoj siab thiab kub exchanger flange sib txuas, tshwj xeeb tshaj yog nyob rau hauv petrochemical chaw, cov ntsia liaj qhov rooj teeb no yog tus qauv. Cov flanges yuav tsum tau tuav lub foob nyob rau hauv cyclic thermal thiab siab loads. Lub hex loj tso cai rau kev tswj xyuas cov ntsia hlau loj thaum lub sij hawm nruj nruj (xws li tus ntoo khaub lig-torquing) xav tau rau cov kab loj-ntev flanges kom ntseeg tau tias qhov sib tsoo gasket.

Nyob rau hauv lub zog tauj dua tshiab, tshwj xeeb tshaj yog rau cua turbine ntauwd flange kev sib txuas. Cov no yog cov pob qij txha loj heev, sib sau ua ke hauv thaj chaw, feem ntau nyob rau hauv cov xwm txheej nyuaj. Cov bolts yuav tsum tiv taus tsis yog qhov hnyav li qub xwb tab sis kuj khoov lub sijhawm thiab kev co rau ntau xyoo. Qib 10.9S, nrog rau nws qhov kev lees paub lub zog muaj zog, muab qhov tseeb kev nyab xeeb. Cov txheej txheem tu xyuas muaj feem cuam tshuam nrog lub sijhawm rov torquing, thiab qhov loj hex tsim yog qhov tseem ceeb rau qhov kev pabcuam ntev.

Txawm hais tias nyob rau hauv lub luag haujlwm hnyav, rau cov khoom raug tshem tawm xws li U-bolt cov khoom siv lossis cov khoom siv qag, koj yuav pom cov no. Hom tsis ua hauj lwm los tiv thaiv ntawm no yog qaug zog los ntawm txoj kev tsis tu ncua. Lub siab, zoo ib yam preload los ntawm lub teeb tsa kom zoo ua rau kev sib koom ua ke los ntawm kev muaj kev sib txheeb ze, uas yog qhov pib ua rau qaug zog tawg.

Kev tsim khoom thiab kev txiav txim siab

Thaum koj xaj, koj tsis yog yuav ib daim hlau xwb. Koj tab tom yuav cov ntaub ntawv pov thawj, qhov sib xws ntawm kev kho cua sov, thiab qhov tseeb qhov tseeb. Ib qho me me ntawm qhov dav hex tuaj yeem ua rau koj lub qhov (socket) tshwj xeeb plam. Rau cov haujlwm loj, peb feem ntau tau ncaj qha los ntawm cov hauv paus tsim khoom xws li Yongnian hauv Hebei, uas yog lub npe hu ua Tuam Tshoj tus qauv loj tshaj plaws ntawm cov khoom tsim. Ib lub tuam txhab zoo li Handan Zitai Fastener, nyob rau ntawd, feem ntau muaj qhov ntsuas thiab tsom mus tsim cov no kom zoo ib yam spec. Nws tsim nyog mus saib lawv qhov chaw ntawm https://www.zitaifasteners.com tsis yog rau cov ntawv teev npe xwb, tab sis txhawm rau txheeb xyuas seb lawv puas muab cov ntaub ntawv qhia txog cov ntaub ntawv thiab tshuaj muaj pes tsawg leeg koj xav tau rau QA cov ntaub ntawv, tshwj xeeb tshaj yog rau kev lag luam tswj hwm.

Lub sij hawm ua ntej thiab ntim khoom. Cov no yog cov khoom hnyav. Tau txais lawv palletized kom zoo, nrog cov qhab nia meej meej uas yuav tsis rub tawm hauv kev thauj mus los, tiv thaiv kev npau suav phem ntawm qhov chaw txais khoom. Tsis muaj dab tsi phem dua li lub thawv sib xyaw ntawm 8.8 thiab 10.9 bolts uas tau poob lawv lub taub hau cim.

Thaum kawg, kev cob qhia koj cov neeg ua haujlwm installation yog ib feem ntawm kev siv cov khoom kom raug. Nws yog kev nqis peev peev. Cov ntsia liaj qhov rooj zoo tshaj plaws hauv ntiaj teb no tsis muaj txiaj ntsig yog tias nws tau teeb tsa tsis raug. Ib tug tsib-feeb toolbox tham txog vim li cas cov no sib txawv, qhov tseem ceeb ntawm huv, qhuav threads (yeej tsis lubricate tshwj tsis yog hais tias tus spec qhia meej hu rau nws nrog ib tug txhais kev sib txhuam coefficient), thiab siv cov cuab yeej zoo them rov qab tenfold nyob rau hauv sib koom kev ntseeg. Qhov ntawd yog qhov zoo tshaj plaws siv-ib siab nkag siab thiab hwm.