Puas muaj qhov tsis xws luag hauv cov xov ntawm Fastener Bolt? Qhov kev sim tshuaj twg zoo dua?
Aug 06, 2024
Fasteners bolts, raws li cov khoom sib txuas, muaj ntau yam kev siv. Piv txwv li, bolts yog ib qho kev sib txuas tseem ceeb hauv kev lag luam tsheb ciav hlau, feem ntau yog siv los txuas cov khoom tseem ceeb xws li nres disc clamps thiab gearboxes. Tau kawg, kev kho cua sov thiab kev ua haujlwm ntawm cov bolts thaum lub sijhawm tsim khoom tuaj yeem ua rau muaj teeb meem loj xws li kev kho cua sov tawg, cov riam tsis zoo, cov duab tsis xws luag, thiab lwm yam. Yuav kom txhua tus neeg tuaj yeem nrhiav tau sai thiab meej seb puas muaj cov hlua khi. qhov tsis xws luag, Xiaorui yuav qhia rau koj hauv cov ntawv hauv qab no uas cov txheej txheem xeem zoo dua.
Cov hauv qab no yog kev sib piv ntawm cov txheej txheem thiab kev tshawb pom rhiab heev los ntawm kev ntsuam xyuas kev nkag mus, kev ntsuam xyuas cov khoom sib nqus, thiab kev ntsuas tam sim no ntawm cov bolt xov tom qab kev sim qaug zog, txhawm rau kom tau txais txoj hauv kev zoo tshaj plaws rau cov xov tooj.
1. Kev xeem nkag
Kev ntsuam xyuas kev nkag mus yog cov txheej txheem kuaj tsis muaj kev puas tsuaj raws li lub hauv paus ntsiab lus ntawm kev txiav txim siab capillary los tshuaj xyuas qhov chaw qhib qhov tsis xws luag hauv cov khoom tsis ntxeem tau. Lub hauv paus ntsiab lus ntawm kev ua haujlwm yog siv cov tshuaj pleev xim uas muaj cov tshuaj nkag mus rau qhov chaw ntawm cov khoom kuaj xyuas, thiab nyob rau hauv qhov kev txiav txim capillary, nws nkag mus rau hauv qhov chaw qhib qhov tsis xws luag. Tom qab ntawd, cov kua dej ntau dhau ntawm qhov chaw raug tshem tawm thiab qhuav, thiab tus tsim tawm yog thov. Cov tshuaj penetrant uas nkag mus rau hauv qhov tsis xws luag yuav rov nkag mus rau hauv qhov chaw ntawm lub workpiece nyob rau hauv capillary nkaus, ua ib qho kev nthuav dav. Raws li qhov tsis xws luag, qhov kev ntsuam xyuas zoo ntawm qhov chaw qhib qhov tsis xws ntawm lub workpiece yog ua tiav. Hauv qab no yog cov lus piav qhia luv luv ntawm cov txheej txheem kuaj.
(1) Cov ntaub ntawv xeem: Xaiv plaub qhov tsis xws luag 18CrNi4WA bolts uas tau dhau los ua kev sim qaug zog thiab suav nrog 1 #, 2 #, 3 #, thiab 4 #, raws li.
(2) Kev kuaj pom qhov system: hnyav tshem tawm hom dye penetration method - hnyav tshem tawm cov duab tus neeg saib xyuas.
(3) Cov txheej txheem kev ntsuam xyuas kev nkag mus muaj xws li kev ntxuav ua ntej, kev siv cov penetrant, tshem tawm cov penetrant, thiab imaging.
Kev ntxuav ua ntej: Siv cov tshuaj ntxuav kom huv kom huv si tshem cov roj stains los ntawm cov xov xov ntawm 4 qhov kev xeem bolts. Tom qab ntxuav, qhuav lawv kom huv si los npaj rau cov txheej txheem tom ntej. Vim tias qhov sib txawv me me ntawm cov ntsia liaj qhov rooj siv hauv kev sim, cov nyhuv ntxuav ntawm tus neeg saib xyuas yuav tsis zoo heev. Yog li ntawd, lub sij hawm ntxuav yuav raug ncua kom tsim nyog los xyuas kom meej tias cov roj stains thiab lwm yam kuab paug ntawm cov xov los yog qhib qhov tsis xws luag raug ntxuav kom huv si kom ntseeg tau tias qhov kev ntsuam xyuas nkag mus tau zoo.
Thov penetrant: Txau lub penetrant tusyees rau ntawm qhov chaw threaded, thiab threaded cheeb tsam yuav tsum tau kiag li wetted los ntawm tus penetrant. Lub sij hawm infiltration yuav tsum yog tsawg kawg 20 feeb los xyuas kom meej cov nyhuv infiltration zoo rau cov kab nrib pleb me me. Tag nrho cov txheej txheem infiltration yuav tsum xyuas kom meej tias cov penetrant tseem moist ntawm qhov chaw kuaj.
Tshem tawm cov penetrant: Tshem tawm cov penetrant yog ib kauj ruam tseem ceeb hauv kev ntsuam xyuas kev nkag mus, thiab kev tu tsis txaus tuaj yeem ua rau ntau dhau ntawm cov ntaub npog qhov ncauj qhov ntswg; Kev tu ntau dhau kuj tseem tuaj yeem tshem tawm tag nrho cov penetrant uas tau nkag mus rau hauv qhov tsis xws luag, ua rau tsis ua tiav ntawm kev ntsuas nkag. Hais txog cov txheej txheem ntawm kev tshem tawm penetrant los ntawm bolt threads, ua ntej siv ib daim ntaub huv si thiab lint dawb kom tshem tawm cov kev nkag siab ntau dhau, thiab tom qab ntawd quav ib lub ces kaum nrog ib lub thickness uas siv shaftless ntawv thiab ntxig rau hauv qhov chaw threaded los so. Qhov chaw threaded yuav tsum muaj lub teeb liab liab xim.
Kev Ntsuas: Cov ntsia hlau ntsuas siv cov tshuaj tsuag tuaj yeem ntub cov kuab tshuaj raws li tus neeg saib xyuas. Ua ntej siv tus neeg saib xyuas, cov tshuaj tsuag yuav tsum tau shaken rau 3-5 feeb kom sib npaug ntawm cov hmoov uas tau nyob rau hauv qab ntawm lub kaus poom hauv cov kuab tshuaj. Tus neeg saib xyuas daim duab thov yuav tsum tsim cov yeeb yaj kiab nyias nyias ntawm thaj chaw xov, thiab lub sijhawm ua duab feem ntau yog 5-10 feeb.
(4) Cov qhabnias xeem: Tsuas yog 1 # thiab 4 # ntawm 4 qhov kev xeemboltspom qhov tsis xws luag (saib daim duab 1 thiab daim duab 2). Qhov chaw tsis xws luag pom hauv daim duab 1 yog taw tes zoo li thiab linear defects ntawm txoj hauj lwm xov thib ob. Raws li kev paub dhau los, qhov tsis zoo tiag tiag yuav yog qhov tsis xws li linear uas cov ntsiab lus thiab kab tsis sib txuas ua ke. Tej zaum nws yuav yog vim qhov kev nkag mus ntawm kev nkag mus rau hauv qhov tsis xws luag ntawm cov ntsiab lus thiab cov kab raug ntxuav tawm thaum lub sij hawm tu nruab nrab. Qhov tsis xws luag hauv daim duab 2 yog qhov tsis xws luag ntawm txoj haujlwm xov thib ob; Cov duab saum npoo ntawm sab xis ntawm qhov tsis xws li linear yuav tsum yog cov khoom cuav uas tshwm sim los ntawm kev tshem tawm tsis txaus ntawm qhov nkag. Qhov tsis muaj qhov tsis xws luag hauv cov xov xov ntawm bolts 2 # thiab 3 # tuaj yeem yog vim kev tshem tawm tsis txaus ntawm kev nkag mus, uas ua rau muaj qhov tsis xws luag tom qab tau npog ntau dhau.
2. Sib nqus particle kuaj
Sib nqus particle kuaj tshuab yog siv cov khoom siv ferromagnetic los yog cov khoom ua haujlwm ncaj qha los ntawm kev hla tam sim no lossis muab tso rau hauv qhov chaw sib nqus. Nyob rau hauv tej yam kev mob, ib tug leakage magnetic teb yog generated nyob rau hauv lub qhov chaw tsis xws luag, thiab magnetic particles los yog magnetic suspensions yog siv rau saum npoo ntawm workpiece. Cov xaim hlau nplaum ntawm qhov chaw tsis xws luag nyiam cov khoom sib nqus los ua ib qho sib nqus particle pawg. Raws li qhov chaw, cov duab, thiab qhov loj ntawm qhov sib nqus particle pawg, qhov xwm thiab qhov loj ntawm qhov tsis xws luag tuaj yeem txiav txim siab.
Cov txheej txheem magnetism residual tau siv rau qhov nontsia liaj qhov roojmagnetic particle test. Piv txwv li, nyob rau hauv ib tes, thaum siv txoj kev nruam mus kuaj electromagnetic induction thiab pouring magnetic ncua kev kawm ntawv, yog hais tias lub sij hawm electrification yog ntev, yuav muaj ntau magnetic particles adsorbed ntawm threaded qhov chaw nrog me me qhov sib txawv, uas yuav yooj yim tsim ntau dhau lawm. ; Tom qab cov txheej txheem magnetization seem yog siv los kuaj xyuas cov hlau nplaum ntawm lub workpiece, ncuav {{{0}}} lub sij hawm ntawm cov hlau nplaum raug tshem tawm kom ntub tag nrho cov workpiece. Lub sijhawm no, qhov threaded ib feem yuav tsis tsim cov cim magnetic ntau dhau, ua rau nws yooj yim rau kev soj ntsuam. Ntawm qhov tod tes, qhov seem sib nqus induction siv ntawm lub ntsia liaj qhov rooj hauv qhov kev sim no yog ntau dua 0.8T, thiab lub zog quab yuam yog ntau dua 1 kA / m, yog li txoj kev sib nqus seem tuaj yeem siv rau kev tshawb nrhiav.
2.1 Cov txheej txheem xeem:
(1) Kev xeem txoj kev: Cov khoom seem hlau nplaum ntub dej fluorescent magnetic particle kuaj.
(2) Cov khoom siv kuaj: CJW-1000 bolt magnetic particle flaw detector.
(3) Cov qauv kuaj: 4 cov qauv ntsia hlau uas tau dhau los ntawm kev sim qaug zog.
(4) Ultraviolet irradiance: 2600 μ W / cm2.
(5) Fluorescence magnetic suspension concentration: 0.1 mL/100 mL.
(6) Ua pov thawj rhiab heev.
2.2 Magnetic Particle Test Process
(1) Ntxuav cov roj stains thiab impurities los ntawm threaded ib feem ntawm lub ntsia liaj qhov rooj.
(2) Tig lub ntsuas qhov tsis haum thiab do cov hlau nplaum sib nqus kom huv si rau 10 feeb. Txhaj 100 mL ntawm cov hlau nplaum sib nqus rau hauv lub raj dej nag thiab cia nws sawv ntsug rau 40 feeb. Tom qab ntawd nyeem qhov ntim ntawm cov hmoov sib nqus hauv lub raj dej nag.
(3) Muab lub ntsuas hluav taws xob ultraviolet illuminance meter rau ntawm threaded ib feem los xyuas qhov kev siv ntawm ultraviolet lub teeb.
(4) Clamp lub ntsia liaj qhov rooj, tua lub axial magnetization thiab tig rau longitudinal magnetization, nrog lub zog ntawm lub sij hawm ntawm 0.25 ~ 1 s.
(5) Nres magnetizing thiab tshem tawm cov ntsia liaj qhov rooj. Siv magnetic suspension rau threaded ib feem ntawm lubntsia liaj qhov roojlos ntawm pouring nws 2-3 zaug kom paub meej txaus wetting ntawm threaded ib feem.
(6) Cia lub ntsia liaj qhov rooj sawv ntsug rau 10 vib nas this (tso cia qhov seem ntawm cov hlau nplaum nyob hauv thaj chaw threaded ntws tawm) thiab saib xyuas cov kab hlau nplaum sib nqus hauv qab lub teeb ultraviolet.
(7) Ntsuas qhov demagnetization ntawm cov kab sib nqus loj.
2.3 Cov qhab nia xeem
Tsuas yog 1 # thiab 4 # ntawm 4 qhov kev xeem bolts qhia qhov tsis xws luag, raws li qhia hauv daim duab 3 thiab 4. Daim duab 3 qhia tawm cov kab tawm ntawm kwv yees li 8 hli thiab 12 hli ntawm txoj haujlwm xov thib ob. Daim duab 4 qhia txog cov kab tawm ntawm kwv yees li 8 hli ntawm txoj haujlwm xov thib ob. Tsis muaj cov cim sib nqus tau pom nyob rau ntawm bolts 2 # thiab 3 #, uas tej zaum yuav yog vim qhov me me ntawm qhov tsis xws luag tsis tsim kom txaus xau magnetic teb rau adsorb cov hmoov sib nqus.
3. Eddy kev sim tam sim no
Lub hauv paus ntsiab lus ntawm eddy tam sim no kuaj yog hais tias ib lub kauj nrog alternating tam sim no dhau los ntawm nws mus rau ib tug neeg xyuas pib, thiab alternating magnetic teb generated los ntawm alternating tam sim no induces eddy tam sim no nyob rau hauv lub workpiece. Cov khoom ntawm lub workpiece thiab lub xub ntiag lossis tsis muaj qhov tsis xws luag tuaj yeem cuam tshuam rau theem thiab qhov loj ntawm eddy tam sim no, uas ua rau muaj kev cuam tshuam rau cov hlau nplaum thiab ua rau muaj kev hloov pauv ntawm qhov voltage thiab impedance ntawm lub kauj. Los ntawm kev ntsuas qhov kev hloov pauv hauv coil voltage lossis impedance, qhov muaj lossis tsis muaj qhov tsis xws luag hauv lub workpiece tuaj yeem txheeb xyuas. Qhov kev tshawb pom feature yog tias qhov kev tshawb nrhiav chev tsis tas yuav tsum tau hu rau lub workpiece lossis ob peb lub nruab nrab, thiab qhov kev tshawb nrhiav tau nrawm.
3.1 Kev xeem txoj kev
Siv ntau zaus eddy tam sim no flaw detector los ua eddy tam sim no kuaj ntawm lubntsia liaj qhov roojxov cheeb tsam.
3.2 Cov qhab nia xeem
(1) Eddy qhov ntsuas tam sim no
Cov khoom siv hlau nplaum: TEDDY + A eddy tam sim no qhov tsis txaus ntseeg ntes (saib daim duab 5).
Kev sojntsuam: Qhov chaw hom tshwj xeeb bolt xov nrhiav kom pom (saib daim duab 6).
Excitation zaus: 100 kHz ~ 500 kHz.
Kev hloov kho rhiab heev: Cov khoom siv tib yam ntsia liaj qhov rooj ntsuas qhov thaiv muaj qhov sib tsoo nrog qhov tob ntawm 0.3 hli hauv qhov threaded.
(2) Eddy cov txiaj ntsig kev xeem tam sim no
eddy tam sim no kev sim ntawm threaded qhov chaw ntawm bolts naj npawb 1 #, 3 #, thiab 4 qhia tau hais tias cov kev tshwm sim raws li qhia nyob rau hauv daim duab 7 mus rau 9. Sab laug ntawm daim duab qhia tau hais tias ib tug dag tawg nrog ib tug tob ntawm 0. 3 Imm, thaum sab xis qhia txog qhov tsis xws luag hauv qhov ntsuas qhov ntsuas.
4. Kuaj qhov xaus
Kev sib nqus sib nqus particle thiab eddy tam sim no kev ntsuam xyuas tau ua nyob rau hauv cov threaded qhov chaw ntawm plaub bolts uas underwed kev sim qaug zog. Cov txiaj ntsig tau pom tias qhov tsis xws luag tau kuaj pom hauv bolts 1 #, 3 #, thiab 4 #. Ntawm lawv, tag nrho peb txoj kev tshawb nrhiav rau bolts 1 # thiab 4 # tau pom tias bolt 3 # tsuas yog pom cov teeb meem tsis raug raws li kev ntsuas tam sim no.
(1) Kev ntsuam xyuas kev nkag mus: kuaj pom cov ntsiab lus thiab kab tsis xws luag (saib daim duab 1), uas yuav tsum yog cov kab tsis xws luag (raws li kev txheeb xyuas hauv daim duab 3), tab sis ua tsis tiav qhov ua tiav qhov tsis xws luag morphology ua rau pom qhov tsis txaus ntseeg; Tsis tas li ntawd, muaj ntau qhov kev ntsuam xyuas nkag mus, thiab lub sijhawm sim rau ib lub bolt yog ze li 30 feeb. Nws kuj yog ib qho nyuaj heev kom tshem tawm cov kua dej ntau dhau ntawm lub hauv paus ntawm cov xov. Kev tshem tawm tsis tiav tuaj yeem yooj yim ua rau muaj keeb kwm yav dhau los thiab txo qhov rhiab heev.
(2) Magnetic particle testing: Cov teeb meem tuaj yeem pom meej hauv cov xov ntawm cov xovbolts1 # thiab 4 #, tab sis tsis muaj cov kab sib nqus pom hauv bolts 2 # thiab 3 #. Qhov no tej zaum yuav yog vim qhov me me ntawm qhov tsis xws luag, uas tsis tsim kom txaus xau magnetic teb rau adsorb cov tsub zuj zuj ntawm cov khoom sib nqus. Tsis tas li ntawd, cov txheej txheem hlau nplaum seem yuav tsum tau siv rau qhov threaded ib feem ntawm lub bolt. Txoj kev sib nqus hlau nplaum seem yuav tsum muaj lub bolt coercive quab yuam yog 1 kA / m thiab qhov seem hlau nplaum lub zog yuav tsum siab tshaj 0.8 T, yog li qee qhov bolts tsis tuaj yeem sim siv txoj kev no.
(3) Eddy kev kuaj tam sim no: Nws tuaj yeem txheeb xyuas qhov tsis xws luag uas tsis tuaj yeem kuaj pom los ntawm ob txoj hauv kev saum toj no nrog kev tshawb pom siab thiab tsis muaj qhov nruab nrab txuas ntxiv. Nws tuaj yeem ua tiav qhov kev tshawb pom hauv 30 vib nas this nrog kev ua haujlwm siab thiab nrawm nrawm. Eddy kev sim tam sim no siv hluav taws xob teeb liab los qhia qhov tsis xws luag, yog li cov txiaj ntsig tau tshwm sim tuaj yeem ua digitized, khaws cia, rov tsim dua, thiab cov ntaub ntawv tuaj yeem yooj yim automated rau kev sim.
Hauv cov ntsiab lus, kho eddy kev sim ntawm cov ntsia liaj qhov rooj xov xwm muaj qhov siab tshaj plaws thiab tuaj yeem nrhiav tau qhov kev nrawm ntawm cov kev tsis txaus siab saum cov hluav taws xob.
