Yog tias peb saib ze ntawm lub dav hlau, peb yuav pom tias muaj ntau cov ntsia hlau ntawm daim tawv nqaij ntawm lub dav hlau. Peb feem ntau pom xws li rivet crafts nyob rau hauv ib co loj choj vaj tse.
Nws tau hais tias lub dav hlau C919 siv ntau lab tus rivets, thiab lub dav hlau A380 siv ntau tshaj tsib lab rivets. ——Tom qab ntawd vim li cas ho tsis cov dav hlau ncaj qha welded, tab sis xaiv cov txheej txheem rivet zoo li nyuaj?
Siv zog kom poob txhua gram
Muaj ib lub ntsiab lus hauv kev lag luam aviation: "Siv zog kom txuag txhua gram." Txhawm rau txo qhov hnyav ntawm lub dav hlau, cov khoom siv tau yooj yim tshaj plaws yog siv hauv kev tsim dav hlau raws li cov xwm txheej hauv zos.
Txhawm rau kom txo qhov hnyav, daim tawv nqaij ntawm lub dav hlau feem ntau ua rau nyias nyias. Nrog xws li daim tawv nqaij nyias, nws yog ib qho nyuaj heev rau welding lawv ua ke.
Tsis tas li ntawd, nyob rau hauv qee lub dav hlau, lub fuselage yog ua los ntawm cov khoom siv txhuas, uas muaj cov cua sov tsis zoo, thiab cov txheej txheem vuam yuav ua kom muaj cua sov ntau thaum lub sij hawm vuam, uas yog pom tseeb tsis haum rau lub dav hlau nrog txhuas fuselage.
Cov dav hlau tshaj plaws hauv ntiaj teb siv cov ntaub ntawv sib xyaw ua ke hauv ntau qhov ntau, thiab cov khoom siv sib xyaw kuj yuav raug puas tsuaj los ntawm vuam. Kev sib tshuam ntawm cov khoom sib txawv yuav tsum tau kho lub cev.
Riveting yog ruaj khov thiab txhim khu kev qha
Thawj zaug kuv ya hauv lub dav hlau, kuv zaum ze ntawm lub qhov rais tis. Thaum lub dav hlau ntsib qhov nce thiab nqis ntawm cov huab cua, cov tis kuj vibrated pom, thiab kuv xav tias ntshai lub sijhawm ntawd ...
Kuv ntseeg tias ntau tus phooj ywg tau pom qhov xwm txheej zoo li no. Yog tias muaj kev kub ntxhov hnyav, cov tis ntawm lub dav hlau yuav viav vias nce thiab nqis heev.
Thaum lub sij hawm no rov oscillation, daim tawv nqaij ntawm tis yog stretched, los yog nyem. Yog tias siv cov txheej txheem vuam, lub zog ntawm cov vuam yuav txo qis hauv qhov kev hloov kev ntxhov siab no.
Nyob rau tib lub sijhawm, cov chaw vuam no yuav ua rau qee qhov tawg me me. Yog tias lawv tsis pom nyob rau lub sijhawm, nws yuav muaj kev nyab xeeb loj heev.
Civilian aircraft feem ntau yuav tsum tau ua hauj lwm rau ntau tshaj kaum xyoo, thiab cov welds yog feem ntau ua rau hlau qaug zog teeb meem, thiab cov kev twb kev txuas cov nyhuv yog tsis zoo tagnrho. Riveting tuaj yeem txo qhov kev vibration kis ntawm cov pob qij txha, yog li txo qhov kev pheej hmoo ntawm kev tawg. Rau qhov kev hloov kev ntxhov siab li no, qhov ruaj khov zoo dua thiab txhim khu kev qha.
Riveting pab txhawb kom muaj nuj nqis ntau lawm thiab txo cov nqi kho
Vuam zoo feem ntau nyob ntawm kev txawj ntawm tus neeg teb xov tooj. Vuam yog thinner thiab thicker, thiab randomness kuj loj. Nws tseem nyuaj rau kev tsim ib qho kev sib koom ua ke.
Cov rivets siv nyob rau hauv cov txheej txheem riveting muaj qhov tsis zoo me me thiab yooj yim rau kev tswj xyuas qhov zoo thiab cov qauv tsim.
Peb txhua tus paub tias thaum lub dav hlau raug tsim, muaj cov kev cai siab rau kev tsim qauv.
Qhov tseem ceeb tshaj plaws hauv kev lag luam aviation yog qhov zoo sib xws. Ib lub dav hlau muaj ntau lab tus rivets, thiab thawj rivets tsim yuav tsum yog tib yam li kaum lab ntawm rivets tom qab ntawd.
Lub zog tshwj xeeb ntawm rivets ntawm lub dav hlau yuav tsum siab li 1100 MPa, uas yog sib npaug rau qhov hnyav ntawm 10 lub tsheb ntawm thaj tsam ntawm 1 square centimeter. Lub machining raug ntawm rivets ncav cuag micron-theem tswj.
Lub hauv paus ntsiab lus no zoo ib yam li lub dav hlau loj nws tus kheej. Nws tsis yog qhov nyuaj heev rau lub teb chaws loj los tsim cov dav hlau loj tshaj plaws, tab sis nws yog ib qho kev sib tw zoo los tsim ntau txhiab tus tib yam khoom.
Rivets tsis nce aerodynamic luag, tab sis txo nws
Qee cov phooj ywg yuav xav tias: Cov rivets no puas tuaj yeem ua rau muaj kev cuam tshuam ntawm lub dav hlau? Qhov tseeb, cov rivets siv nyob rau hauv lub tshav pob ntawm aviation manufacturing yog feem ntau convex taub hau thiab countersunk taub hau rivets.
Nyob rau hauv sab hauv ntawm lub dav hlau, vim tsis muaj qhov yuav tsum tau rau aerodynamic zoo, tus nqi qis thiab yooj yim-rau-txheej txheem convex taub hau rivets yog tsuas yog siv.
Lub countersunk rivets feem ntau yog siv rau ntawm qhov chaw du ntawm lub dav hlau, uas tuaj yeem txo qhov tsis kam ntawm lub dav hlau. Thaum lub sij hawm ua, muaj cov kev cai nruj rau kev ua siab ntev ntawm tus ntsia thawv hau thiab cov qauv nyob ib puag ncig. Thaum koj kov qhov chaw ntawm lub dav hlau, koj tsis tuaj yeem hnov qhov muaj nyob ntawm rivets.
Daim ntawv thov no tau coj cov txiaj ntsig zoo kawg. Raws li cov ntaub ntawv cuam tshuam thaum Ntiaj Teb Tsov Rog II, tom qab siv cov rivets countersunk, qhov kev tiv thaiv ntawm lub dav hlau tuaj yeem raug txo los ntawm 3 feem pua.
Yuav ua li cas hloov lub rivet tawg?
Feem ntau, khov rivets yog siv los hloov. Qhov ntawd yog hais tias, cov rivets tau khov sai sai tom qab quenching, thiab yuav tsum tau riveted li ntawm 15 feeb thaum siv.
Lub zog ntawm no khov rivet yuav nce nyob rau hauv ib txwm kub tej yam kev mob, yog li txhim khu lub stability ntawm lub riveted qauv.
Yuav ua li cas yog tias cov rivets xoob?
Cov ntsia hlau xoob tuaj yeem ua rau lub dav hlau tso cov lus tsis raug, xav kom cov neeg ua haujlwm tu lub dav hlau ua haujlwm dhau sijhawm kom pom cov ntsia hlau cuav.
Hauv 2016, txhawm rau txhawm rau tshem tawm qhov txhaum ntawm lub dav hlau A320, cov neeg ua haujlwm saib xyuas tau ua haujlwm tsis tu ncua rau peb hnub thiab peb hmo. Tom qab kuaj xyuas txhua qhov ua tsis tau ib los ntawm ib qho, lawv thaum kawg pom ib qho xoob ntawm ntau pua cov ntaub ntawv pins nrog txoj kab uas hla tsawg dua 1 hli. .
Txawm hais tias nws yog ib qho kev ua haujlwm ntau los daws cov ntsia hlau, tsis tas yuav txhawj xeeb. Aviation screws yog tus kheej-locking, thiab lub caij nyoog ntawm loosening yog tsawg.
Yog li ntawd, raws li kev txwv ntau yam, feem ntau ntawm cov dav hlau pom tam sim no raug ntsia ua ke.
Cov tawv nqaij tawg pleb yog cov xov los ntawm rivets, thiab thaum kawg lawv tuaj yeem dhau los ua kev sib ntaus sib tua hauv huab cua, cia cov flaps ua las voos yooj yim.
Txuas txuas: Txog cov txheej txheem riveting
Lub siab riveting yog ib txoj kev riveting, uas yog hais txog kev siv lub siab sab nraud los hloov lub plasticity ntawm cov khoom nyob rau hauv lub riveting project, thiaj li mus nkag rau hauv tshwj xeeb prefabricated zawj nyob rau hauv lub riveting ntsia hlau thiab txiv ntseej qauv, thiaj li mus cuag txhim khu kev qha kev twb kev txuas ntawm. ntu.
Ordinary low carbon steel, aluminium alloy phaj, tooj liab phaj thiab lwm yam ntaub ntawv feem ntau yog siv rau crimping standoffs. Qee cov ntaub ntawv nrog cov ntaub ntawv zoo heev, xws li cov hlau tsis muaj steel thiab cov pa roj carbon siab, feem ntau siv tshwj xeeb, siab hardness rivet txiv ntoo studs, yog li stainless hlau tsis tshua muaj siv nyob rau hauv dav rivet studs thiab rivet txiv ntseej daim hlau qhov chaw. . Lub siab riveting screws thiab ceev yog tib yam li siab riveting studs, tsis siv stainless hlau.
Los ntawm kev tshuaj xyuas ntawm cov txheej txheem riveting thiab kev taw qhia ntawm cov khoom siv riveting thiab lawv cov txheej txheem, ua ke nrog kev tswj xyuas zoo ntawm cov txheej txheem riveting, cov txheej txheem riveting tau tham txog.
Cov khoom siv yees duab, Wi-Fi raug pom zoo saib
1. txheej txheem riveting
1. Qhov qhib qhov loj ntawm lub qhov riveting hauv qab yuav tsum tau qhib raws li tus qauv loj ntawm lub qhov.
2. Tsuas yog cov xwm txheej tshwj xeeb (xws li: tom qab kev kho saum npoo ntawm txhua txoj kev ua tiav, muaj kev cuam tshuam nrog riveting), kev kho saum npoo ntawm cov khoom yuav tsum ua kom tiav ua ntej txheej txheem riveting.
3. Thaum xaiv cov xim saum npoo ntawm qhov chaw riveted thiab xim xim ntawm cov khoom seem, feem ntau yog xaiv xim zinc plating ntawm cov khoom, cov riveting qhov chaw zoo ib yam nrog cov khoom seem; feem ntau xiav zinc, dawb zinc, Thaum nickel thiab oxidation, nickel-plated riveting qhov chaw siv; Cov khoom tshwj xeeb yog riveted ua ntej kev kho deg thiab yuav tsum tau welded thiab ntxiv dag zog, npib tsib xee-plated riveting qhov chaw yog siv, vim hais tias cov tshuaj lom neeg ntawm lub txheej muaj feem xyuam rau qhov zoo ntawm vuam.
2. Kev taw qhia thiab kev siv thev naus laus zis ntawm cov khoom siv riveting feem ntau
(1) Siab riveting ceev thiab lawv cov txheej txheem yuav tsum tau
Thaum lub txhuas phaj ntawm cov hniav rivet txiv ntoo yog t Tsawg dua los yog sib npaug rau 1. Thaum cov khoom siv stainless hlau yog siv rau siab riveting, vim hais tias cov khoom siv stainless hlau yog ib qho nyuaj, nws yog ib qho yooj yim ua rau cov txiv ntseej poob tom qab lub siab riveting, yog li feem ntau Spot vuam siv los ntxiv dag zog rau cov txiv ntoo ze ntawm lub phaj; Thaum ua haujlwm siab riveting, lub siab riveting ntawm pwm yuav tsum nyob rau hauv qhov chaw ntawm ib lub sij hawm, thiab cov protruding qhov chaw ntawm cov txiv ntseej yuav tsum tau tag nrho cov nkag mus rau hauv lub phaj yam tsis muaj qhov khoob, kom cov txiv ntseej thiab cov phaj tuaj yeem txuas ruaj khov. Zoo verticality.
(2) Siab riveting studs thiab lawv cov txheej txheem yuav tsum tau ua
Riveting studs muaj xws li los ntawm-qhov threaded riveting studs thiab dig muag qhov riveting studs; tsab xov xwm no feem ntau qhia txog ob hom kev puv-los ntawm studs thiab qhov muag tsis pom qhov studs. Qhov sib txawv ntawm lub qhov puv-los ntawm cov studs thiab qhov muag tsis pom qhov studs yog seb lub qhov sab hauv yog qhib thiab qhov ntev ntawm cov xov sib txawv, thaum qhov ntev ntawm qhov ntev yog qhov zoo ib yam.
Cov txheej txheem thev naus laus zis ntawm cov riveting studs yog raws li nram no: Feem ntau, qhov dig muag qhov riveting studs tsis riveted ua ntej electroplating. Lub hom phiaj ntawm qhov no yog cia cov tshuaj electroplating ntws tawm ntau li ntau tau thiab tiv thaiv cov xov los ntawm corroded.
Thaum ua haujlwm siab riveting, lub siab riveting ntawm pwm yuav tsum nyob rau hauv qhov chaw ntawm ib lub sij hawm, thiab tag nrho cov ces kaum ntawm lub stud yuav tsum tau tag nrho embedded nyob rau hauv lub phaj, thiab nyob rau tib lub sij hawm yuav tsum tau raws li nyob rau hauv lub nto ntawm ib feem, thiaj li hais tias cov ces kaum ntawm lub stud yuav tsum tau tag nrho embedded nyob rau hauv lub phaj, thiab nyob rau tib lub sij hawm yuav tsum zoo ib yam nrog rau qhov chaw ntawm qhov chaw, thiaj li hais tias cov ces kaum ntawm lub stud yuav tsum tau tag nrho embedded nyob rau hauv lub phaj, thiab nyob rau tib lub sij hawm yuav tsum tau raws li nyob rau hauv qhov chaw ntawm ib feem, thiaj li hais tias cov ces kaum ntawm lub stud yuav tsum tau tag nrho embedded nyob rau hauv lub phaj, thiab nyob rau tib lub sij hawm yuav tsum tau raws li nyob rau hauv qhov chaw ntawm ib feem, thiaj li hais tias cov ces kaum ntawm lub stud yuav tsum tau tag nrho embedded nyob rau hauv lub phaj, thiab nyob rau tib lub sij hawm yuav tsum tau raws li nyob rau hauv qhov chaw ntawm qhov chaw. flatness ntawm lub phaj thiab lub perpendicularity rau lub stud yog zoo. Thaum lub stud ntev L Ntau dua los yog sib npaug rau 30mm, raws li cov qauv kev soj ntsuam thiab cov txheej txheem yuav tsum tau, cov stud yuav tsum tau ntxiv dag zog los ntawm qhov chaw vuam kom tsis txhob inclination ntawm lub stud. Thaum siv stainless hlau daim hlau rau siab riveting, kev kam rau siab ntawm lub sab nraud txoj kab uas hla ntawm lub stud thiab qhov luaj li cas ntawm lub phaj qhib yuav tsum tau guaranteed nyob rau hauv ± 0.05mm.
(3) Siab riveting screws thiab lawv cov txheej txheem yuav tsum tau ua
Lub siab riveting screws feem ntau muab faib ua ob hom: puag ncig lub taub hau hom thiab hexagon lub taub hau hom: S ib feem ntawm lub taub hau puag ncig lub taub hau siab riveting ntsia hlau yog lub taub hau puag ncig thiab paj hniav, thiab txoj kev siab riveting yog ib yam zoo li lub paj. hniav siab riveting txiv ntseej qhia ua ntej; hom hexagon taub hau Lub S ib feem ntawm cov ntsia hlau yog tsim los ntawm lub taub hau hexagonal thiab concave-convex, thiab txoj kev riveting yog tib yam li cov riveting stud.
Cov txheej txheem thev naus laus zis ntawm cov riveting studs yog raws li nram no: Feem ntau, lub phaj nrog t<1mm is not used for the riveting; the use of the mold must be in place at one time during the riveting, and all corners of the stud must be fully embedded in the plate, and at the same time It is consistent and flush with the surface of the part, so that the flatness of the plate and the perpendicularity to the stud are good. Because the S value of the riveting screw is usually large, it is easy to squeeze the material during the riveting, which will lead to the deformation of the part; when riveting the stainless steel screw on the stainless steel plate, the tolerance of the outer diameter of the screw and the size of the opening should be guaranteed to be within ±0.05mm .
(4) xoob thiab tsis tshem tau siab riveting screws thiab lawv cov txheej txheem yuav tsum tau ua
Feem ntau, nyob rau hauv qhov chaw uas fastening yuav tsum tau nquag disassembled thiab ntsia, uas tsis yog-tshem rivet screws yog feem ntau siv.
Cov txheej txheem thev naus laus zis uas yuav tsum tau ua ntawm cov tsis-loosing siab riveting ntsia hlau: kev siv cov pwm yuav tsum nyob rau hauv qhov chaw ntawm ib lub sij hawm thaum lub siab riveting. Lub verticality yog qhov zoo.
(5) Nrhiav tus pins thiab lawv cov txheej txheem thev naus laus zis
Cov txheej txheem thev naus laus zis ntawm lub siab riveting positioning tus pin: thaum qhov ntev L ntawm tus pin positioning yog ntau dua 20mm, raws li cov qauv kev soj ntsuam thiab cov txheej txheem specifications, lub positioning pin yuav tsum tau welded (qhov chaw vuam ntawm lub taub hau puag ncig) yuav tsum tau ntxiv dag zog. kom tsis txhob skewing; kev siv cov pwm thaum lub sij hawm siab riveting Nws kuj yuav tsum tau nyob rau hauv qhov chaw ntawm ib lub sij hawm, thiab tus thawj coj ntawm lub positioning tus pin yuav tsum tau tag nrho embedded nyob rau hauv lub phaj, thiab nyob rau tib lub sij hawm yuav flush nrog lub nto ntawm ib feem, kom lub flatness. ntawm lub phaj thiab qhov perpendicularity rau tus pin positioning yog zoo.
3. Kev tswj xyuas zoo ntawm cov txheej txheem riveting
1. Kev ua cov ntsiab lus ntawm cov txheej txheem riveting: riveting ceev, screws, studs thiab customized kho vajtse riveting qhov chaw (cov lus qhia pins, positioning txhawb txhua, thiab lwm yam), electrostatic tes tais lub rooj zaum, riveting wrenches, thiab lwm yam.
2. Rau cov riveting qhov chaw uas nyob ze rau ntawm ntug ntawm cov khoom los yog periphery ntawm lub qhov, ntug ntawm cov khoom los yog periphery ntawm lub qhov yuav pom tseeb deformed tom qab riveted. Siv cov kev ntsuas sib xws (xws li kev kho cov duab / lossis kev sib tsoo) raws li qhov deformation thiab nthuav dav ntawm cov khoom kom ua tiav cov duab kos loj thiab qhov xav tau.
3. Tom qab riveting, yuav tsum tsis muaj crooked los yog deflected tshwm sim, thiab nws yuav tsum tau xyuas kom meej tias cov xov thiab lub qhov sib thooj yog concentric.
4. Cov khoom siv, specifications thiab qauv ntawm cov riveting qhov chaw yuav tsum ua raws li cov kos duab, thiab cov specifications yuav tsum tsis txhob yuam kev;
5. Tom qab lub riveting, qhov chaw nyob ib puag ncig ntawm cov riveting qhov chaw yuav tsum tsis txhob pom tseeb deformed los yog convex los yog concave, thiab yuav tsum tsis muaj pom tseeb embossing los yog molding uas tsis tuaj yeem npog los ntawm kev kho deg.
6. Tsis txhob qaij tom qab riveting. Cov riveting qhov chaw yuav tsum tsis txhob loosen los yog poob, thiab lawv firmness yuav tsum tau sim; lawv lub zog thawb-rub thiab qhov tseem ceeb ntawm lub zog yuav tsum ua tau raws li cov cai ntawm PEM cov cai rau cov riveting qhov chaw ntawm lawv cov specifications.
7. Ua ntej riveting, nws yog ib qho tsim nyog yuav tsum paub meej nyob rau hauv lub sij hawm seb cov cim sab nraud ntawm cov riveting qhov chaw siv nyob rau hauv cov kab ntau lawm thiab cov khoom tiag (cov ntaub ntawv, specifications thiab qauv) nyob rau hauv lub hnab ntim khoom raws li qhov yuav tsum tau ntawm cov kos duab, thiab seb puas muaj. yog txhua yam khoom sib xyaw hauv lub hnab ntim khoom.
8. Tom qab lub riveting, cov xov ntawm qhov riveting yuav tsum tsim nyog, txoj cai hla dhau, thiab txoj cai nres nres.
