Dab tsi yog lub zog siab bolts?

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Bolt yog ib qho ntawm cov metric fasteners feem ntau. Nws cov qauv tsim yooj yim tso cai rau koj los txuas cov khoom sib txawv nrog cov yam ntxwv sib txawv thiab kev ua haujlwm. Muaj ntau qhov kev faib tawm ntawm cov khoom siv bolted, tab sis nyob rau hauv cov nqe lus ntawm fastening kev ntseeg tau, qhov tseem ceeb tshaj plaws faib yog raws li qib ntawm tsis kam mus rau lub cev kev nyuaj siab. Lub functional stability thiab durability ntawm lub hom phiaj qauv nyob ntawm seb cov khoom no. Qhov txaus nyiam tshaj plaws hauv qhov no yog cov bolts uas muaj zog siv hauv cov tsheb, cov chaw ua haujlwm thiab cov tsev tsim kho tseem ceeb.

Cov khoom lag luam nthuav dav

Lub hauv paus yog tsim los ntawm cov hlua hlau, nrog rau lub taub hau tsim los tuav los ntawm tus yuam sij ntawm qhov loj me. Feem ntau siv cov ntsiab lus nrog lub taub hau hexagonal, uas yog suav tias yog qhov feem ntau txhim khu kev qha. Cov khoom siv yog alloyed carbon steel, muaj peev xwm ntawmwithstand hnyav loads ntawm tus qauv. Txawm li cas los xij, muaj lwm hom kev siv alloys. Cov no thiab lwm yam kev cai rau kev tsim cov khoom siv no yog tswj los ntawm GOST 52644. Cov bolts siab zog yuav tsum ua raws li qee qhov kev ntseeg siab. Rau cov khoom nkag, piv txwv li, kos 8, 8 yog siv raws li qib ntawm lub zog. Qhov no yog ib hom fastener ua los ntawm hardened steel. Nyob rau hauv tshwj xeeb tshaj yog loaded qauv, kev siv bolts yog assumed, lub zog chav kawm ntawv uas sib raug rau cov cim 10, 9 thiab 12, 9. Ib tug tshwj xeeb feature ntawm no hardware yog lub peev xwm mus tsis tau tsuas yog tiv taus ib tug static load, tab sis kuj muaj ntau yam cycles. ntawm kev sib dhos thiab dismantling ua haujlwm.

Kev ua haujlwm nta

Piv rau cov pa fasteners, cov khoom siv muaj zog tuaj yeem siv tsis tau tsuas yog nyob rau hauv cov xwm txheej ntawm kev ntxhov siab, tab sis kuj nyob rau hauv thermal thiab lwm yam cuam tshuam tsis zoo. Cov khoom tseem ceeb yog fluidity thiab tensile lub zog. Qhov sib npaug ntawm qhov sib npaug ntawm lub zog muaj zog bolts raws li cov sheathing lossis kev sib txuas kab tso cai rau txawm tias faib cov khoom thauj, yog li ua kom muaj kev ntseeg tau ntawm cov qauv. Thaum lub sijhawm ua haujlwm, tus tswv suav cov nominal tsis kam ib ntus, uas tau qhia hauv N / mm ². Qhov tsawg kawg nkaus tensile lub zog yuav nyob ntawm seb tus lej teev nyob rau hauv lub cim. Piv txwv li, 10x100 yuav ua rau 1000 N/mm^{2. Tsis tas li ntawd, cov yam ntxwv ntawm hom khoom siv no suav nrog kev tiv thaiv kev puas tsuaj ntawm cov qauv hauv qabQhov kev txiav txim ntawm ya raws, uas yog, kev tiv thaiv los ntawm corrosion puas.}

Hardware dimensions

Txhawm rau qhia qhov tsis sib xws ntawm cov khoom, siv lub cim tshwj xeeb - M16-48. Raws li nws, cov ntsiab lus tuaj yeem muaj qhov ntau thiab tsawg:

• Length: 40-300mm.
• Dav: 16-48mm.
• xov ntev: 6-18mm.
• siab taub hau: 8-24mm.
• taub hau taub: 19-53mm.
• Txheej thickness: 25-40 microns.

Nws yog ib qho tseem ceeb uas yuav tsum tau hais tias txhua qhov loj me uas tau hais tseg yog sib cuam tshuam. Ntawd yog, piv txwv li, ntawm qee qhov ntev, kev txwv yog txwv rau lub thickness ntawm tus pas nrig thiab xov suab. Qhov no yog vim qhov tseeb tias txawm tias qhov kev tswj nruj ntawm lub zog siab bolts tsis tas yuav tso cai rau lub zog nruab nrab ntawm cov khoom siv, tiv thaiv nws los ntawm kev tawg thiab deformations.

Kev Sib Txuas Lus

Kev ua haujlwm sib dhos tsuas yog ua tiav tom qab kev tshuaj xyuas zoo ntawm cov txheej txheem kev ua haujlwm rau kev ua haujlwm ntawm lub hom phiaj lossis cov txheej txheem ua haujlwm. Tshwj xeeb, thaum xaiv cov khoom siv raws li cov yam ntxwv ntawm qhov ntev, qhov sib txawv ntawm qhov sib txawv, cov khoom siv kho kom zoo thiab qhov tsis zoo ntawm cov khoom siv fastening yog xam ua ntej. Tsis txhob hnov qab tias thaum lub sij hawm installation, lub zog siab bolts kuj tsim ib pob khoom nrog txiv ntseej thiab ntxhua khaub ncaws, uas yuav tsum tau ua raws li tus pas nrig bearing nyob rau hauv cov nqe lus ntawm geometric tsis.

Thaum lub sijhawm ua haujlwm teeb tsa, cov haujlwm hauv qab no tau ua:

• Npaj cov khoom siv nrog kuaj xyuas nwsxwm txheej.
• Kev npaj ntawm qhov chaw ua haujlwm (tu, degreasing).
• Kev sib txuas lub zog siab siv lub cuab yeej tshwj xeeb. Tes wrenches lossis nutrunners nrog lub zog zoo tuaj yeem siv.
• Tswj kev ua haujlwm. Kev ntseeg tau ntawm lub fastener, nws cov geometric raug thiab nro quab yuam raug soj ntsuam.
• Kev sib khi, sib khi thiab priming ntawm cov pob qij txha.

High Strength Bolt Applications

hom fastener no tsuas yog siv hauv kev lag luam hnyav thiab kev tsim kho. Nyob rau hauv ntau lawm, xws li bolts yog siv nyob rau hauv lub rooj sib txoos ntawm lub tsheb, engineering units, tshwj xeeb cov cuab yeej, thiab lwm yam. Raws li rau kev tsim kho kev lag luam, raws li GOST, high-strength bolts raug pom zoo rau siv nyob rau hauv lub tsev thiab cov qauv siv nyob rau hauv ib ntus, mus tas li. thiab tshwj xeeb loads. Piv txwv li, kho vajtse tuaj yeem siv los txuas rau qhov chaw ntawm cov qauv uas yuav raug seismic, tawg thiab vibrational vibrations thaum lub sijhawm ua haujlwm. Tsis muaj kev txwv nyuaj rau kev siv ib puag ncig. Cov hlau muaj zog muaj zog tau ua tiav hauv qhov kub thiab txias mus txog -60 ° C thaum raug tshuaj lom neeg.

Zaj lus

Nws tuaj yeem tsim qhov kev sib txuas zoo nkaus xwb yog tias siv cov fasteners tsim nyog. Kev tsim cov khoom siv muaj zog siab, tau kawg, txhim kho qhov zoo ntawm cov khoom siv docking, tab sis rau qhov no nws yog ib qho tsim nyog los xaiv hom kev xaiv.threads, lub taub hau zoo li, loj, thiab lwm yam. Piv txwv li, raws li tau sau tseg los ntawm tib GOST, high-strength bolts muaj peev xwm muaj tag nrho thiab tsis tiav threads. Nyob rau hauv thawj rooj plaub, ib feem ntawm tus pas nrig tau txais ib tug "huv" nto, thiab nyob rau hauv lub thib ob rooj plaub, ib tug corrugated ib tug raws tag nrho ntev. Yog li ntawd, lub hom phiaj ntawm xws li bolts yuav txawv. Kev saib xyuas yuav tsum tau them rau cov txheej txheem ntawm kev siv cov txheej txheem tiv thaiv. Cov yeeb ncuab tseem ceeb ntawm cov hlau fasteners yog xeb, thiab txhawm rau tiv thaiv cov qauv ntawm nws qhov kev sib kis ntau li ntau tau, nws yog ib qho tsim nyog yuav tau pib xaiv cov khoom uas tau ua tiav kev kho galvanic lossis anti-corrosion galvanizing. Qhov no tsuas yog siv rau hauv tsev sab nrauv thiab tsheb.