Cov khoom siv tshuab yog hais txog cov txheej txheem tsim khoom los ntawm cov khoom siv raw mus rau tag nrho cov txheej txheem kev tsim khoom ntawm lub Hoobkas. Nws suav nrog: kev tsim khoom dawb paug, machining, kho cua sov, sib dhos, tshuaj xyuas, kuaj, pleev xim thiab lwm yam txheej txheem loj; kuj suav nrog kev ntim khoom, kev thauj mus los thiab lwm yam txheej txheem pabcuam.
Tam sim no kuv mam li qhia luv luv txheej txheem ntawm kev ua lub crane, tib lub sijhawm, koj yuav muaj kev nkag siab ua ntej ntawm peb cov khoom siv.
Crane los ntawm cov qauv hlau (cov kab teeb tseem ceeb, sab kab teeb, platform thiab ntaiv railings, me thav duab, thiab lwm yam), machining qhov chaw; muas khoom (bearings, fasteners, txheem qhov chaw, thiab lwm yam.) thiab spare qhov chaw (vim peb cov khoom los yog muaj peev xwm yog vim li cas, lub commission units ua Cheebtsam: Yog hais tias tus nuv) ua los ntawm cov khoom sib dhos.
Cov txheej txheem tsim khoom rau txhua tus qauv tam sim no:
1. Kev tshuaj xyuas tuaj:
Kev tshuaj xyuas cov khoom tuaj: nws txhais tau hais tias lub chaw soj ntsuam zoo yuav xyuas seb cov khoom siv tuaj (nrog rau cov hlau, cov khoom siv vuam) muaj ntawv pov thawj, xyuas lawv raws li lub teb chaws tus qauv thiab lub tuam txhab. Recheck yog tias tsim nyog, ua random tshuaj xyuas cov tshuaj muaj pes tsawg leeg thiab lub zog txhua yam yuav raug tshuaj xyuas los ntawm cov qauv random kom pom tias
2. Pretreatment Ntawm Hlau Nto
Ua ntej txiav cov hlau, txhaj tshuaj thiab pob blasted, nto ntawm qhov tseem ceeb ncav cuag qib Sa2.5 ntawm GB8923 tus qauv. Tom qab tshem tawm cov xeb, pleev xim los tiv thaiv corrosive primer ib zaug.
3. Kev pleev xim rau primer
Cov tshuaj tsuag primer yuav raug pleev xim tam sim tom qab txhaj tshuaj tiv thaiv kom tsis txhob xeb ntawm qhov chaw.
4. Kos tawm
Kos cov duab thiab ua cov kab ntawm cov phaj nrog cov qauv phaj, tes tuav lossis daim duab.
5. Phaj-txiav
CNC txiav, semi-automatic txiav, shearing thiab sawing. Lub tuam tsev ua haujlwm yuav xaiv txoj kev txiav tsim nyog, kos daim npav txheej txheem, muab tso rau hauv qhov kev pab cuam thiab tus lej.
6. Phaj txuas
Qee qhov chaw (xws li lub vev xaib ntawm lub ntsiab girder) yuav txuas nrog ntau daim hlau. Cov phaj yuav txuas nrog raws li qhov loj me, cim thiab cov txheej txheem yuav tsum tau ua. Weld yuav bevel txiav los ntawm semi-automatic cutter thiab ces kho los ntawm tsis siv neeg submerged-arc elding .
7. Kev kuaj xyuas qhov tsis haum
Butt weld seam yuav raug kuaj pom raws li qhov yuav tsum tau ua vim nws qhov tseem ceeb, qib tsis qis dua II tswj hwm hauv GB3323, thaum kuaj pom los ntawm txoj kab hluav taws xob, thiab yuav tsum tsis pub tsawg dua Ⅰ tswj hauv JB1152 thaum kuaj pom los ntawm ultrasonic. Rau qhov tsis tsim nyog los ntawm qhov chaw, shaved carbon arc gouging, re-weld tom qab ntxuav.
8. Leveling
Leveling: theem phaj tom qab txuas,
Txoj kev:
(1) Mechanical leveling: khoom siv: roller phaj leveler W43Q-32X2500
(2) nplaim taws ncaj
(3) phau ntawv kho
9. Secondary Mark, Txiav
Tom qab kev sib txuas, kev tshawb nrhiav thiab qib, kos cov kab txiav (kos tawm) raws li qhov xav tau, qhov loj me, txiav lawv nrog semi-automatic txiav tshuab.
10. Kev sib dhos:
Siv lub ntsiab girder ua piv txwv, txheej txheem sib dhos raws li hauv qab no:
① Tsim platform: sib sau ua ke rau ntawm lub platform, flatness tsis ntau tshaj 1 / 1000
② Web phaj yuav muab tso rau ntawm lub platform, weld longitudinal reinforcement lub kaum sab xis, feem ntau nws yog ob-staggered intermittent vuam;
③ Npog-Plate yuav muab cov pobzeb rau ntawm lub platform, khij txoj haujlwm ntawm tav thiab lub vev xaib.
④ Weld cov tav raws li cov kab kos ntawm lub phaj, siv phau ntawv thiab CO2 qhov chaw vuam;
⑤ Weld lub ntsiab thiab aux web phaj ntawm lub phaj npog uas yuav yog "π" zoo li nqaj.
⑥ Weld seams sab hauv, (ribs, web thiab npog phaj); (gas-welding), ces pleev xim antirust primer;
⑦ Tom qab kos npe rau ntawm lub platform, muab "n" duab girder rau ntawm phaj qis; weld seams sab hauv;
⑧ Weld plaub lub ntsiab seams (tsis siv neeg submerged-arc vuam) thiab lwm yam seams (gas tiv thaiv vuam).
⑨ Kev kho, kev txwv. Feem ntau VSR yuav siv rau cov khoom loj, camber ntawm lub ntsiab girder yuav tsum yog 0.9-1.4S/1000 (S stands for span).
11. Kev kuaj xyuas qhov tsis zoo thiab tshuaj xyuas
Ultrasonic flaw detection yog nqa tawm nyob rau hauv lub ntsiab welds, thiab plaub ntev welds ntawm lub web thiab lub npog phaj yuav tsum tau raws li qhov tsis xws luag faib theem II tus qauv teev nyob rau hauv GB / T12469. Qhov loj ntawm cov qauv ua tau raws li qhov yuav tsum tau ua ntawm cov duab kos, thiab lub camber yog nyob rau hauv qhov kev teev tseg.
12. Sib dhos (assemblage)
Assemblage txhais tau tias sib sau ua ke txhua qhov raws li qhov xav tau.
Thaum lub ntsiab girder thiab qhov kawg carriage txuas rau hauv tus choj, xyuas kom meej tias qhov kev ncua deb ntawm qhov nruab nrab ntawm ob txoj kab thiab qhov ntev ntev ntawm tus choj kab pheeb ces kaum ua tau raws li qhov yuav tsum tau ua.
Thaum sib sau ua ke LT thiab CT mechanisms.
Machined qhov chaw ntau lawm txheej txheem:
1. Ntau lawm txheej txheem ntawm machining qhov chaw
Cov khoom ntxhib: lawv feem ntau suav nrog cam khwb cia hlau (ZG270-500, ZG340-640 thiab lwm yam), hlau casting (HT, QT), vuam (steel phaj thiab vuam qhov), puag ncig steel qhov chaw (txiav los ntawm saw tshuab.
2. Machining
Nws txhais tau hais tias tshuab cov khoom siv sib txawv hauv txoj kev sib txawv (milling, npaj, sib tsoo, tho txawv, drilling, ntxig, thiab lwm yam) los hloov cov duab, qhov loj me, qhov roughness ntawm lawv mus rau hauv cov tsim nyog.
3. Kev sib dhos ntawm hluav taws xob
Sib dhos los ntawm tus kws kho hluav taws xob.
4. Yuav khoom
Cov khoom (tsuas yog suav nrog lub cev muaj zog, reducer, kabmob, tus qauv fastener, hluav taws xob thiab lwm yam qauv) yuav raug yuav raws li lub rooj teeb tsa tau npaj los ntawm kev tsim lub tuam tsev thiab lub sijhawm ua los ntawm cov txheej txheem. Sib sau ua ke txhua ntu raws li kos duab.
5. Kev koom tes ib feem(nrog rau cov khoom ntxhib xws li cam khwb cia hlau, hlau casting, forgings thiab tag nrho cov khoom seem)
vim tias peb qhov chaw thiab lub peev xwm ntau lawm tsis txaus, qee qhov yuav raug tsim los ntawm peb thiab ua los ntawm lwm cov chaw tsim khoom. Lawv yuav raug kuaj xyuas thaum tuaj rau peb qhov chaw.
Tam sim no, kev koom tes nrog cov hooks, pulleys, ib feem ntawm lub nruas, cam khwb cia hlau, hlau casting, forgings, thiab lwm yam.
6. Kev sib dhos zaum kawg
Sib sau ua ke txhua qhov raws li kev kos duab dav dav, xws li sib sau ua ke ntawm hoisting mechanism ntawm trolley, pulley thiab kev txhawb nqa, kev mus ncig, thiab lwm yam. Qee qhov yuav tsum tau muab tshem tawm kom yooj yim rau kev thauj mus los, thiab sib sau ua ke ntawm qhov chaw, tab sis yuav tsum tau sim tsim ntawm chaw tsim tshuaj paus, teem vuam positioning thaiv ntawm qhov chaw tsim nyog rau positioning ntawm lub thib ob los ua ke. Qee qhov chaw xws li ntaiv, tes tuav yuav raug ntsia ntawm tus neeg siv lub xaib, txiav txim siab qhov twg yuav raug ntsia ntawm tus neeg siv lub xaib raws li qhov xwm txheej tshwj xeeb.
7. Kev tshuaj xyuas
Tom qab kev sib dhos zaum kawg, lub chaw soj ntsuam xyuas zoo yuav tshuaj xyuas tag nrho raws li tus qauv txheeb ze thiab cov kev cai, muab daim ntawv pov thawj ua haujlwm yog tias nws tsim nyog.
8. Xim
Xaiv cov xim sib txawv (xim, hom) raws li daim ntawv cog lus lossis chaw ua haujlwm; Cov txheej txheem ua haujlwm yuav tsum npaj cov xim thiab hom tha xim (hom, xim, kom muaj nuj nqis, thickness ntawm thawj thiab tiav lub tsho, thiab lwm yam) raws li qhov yuav tsum tau ua ntawm daim ntawv cog lus. Saib cov xim siv nyob rau hauv ntau qhov chaw nyob rau hauv rooj 2.
9. Kev tshuaj xyuas xim
Thaum pleev xim tiav, xyuas seb cov yeeb yaj kiab thickness ua tau raws li qhov yuav tsum tau ua, tsis muaj qhov tsis xws li sag lossis crinkle, saum toj no yog cov txheej txheem tsim khoom ntawm crane.
10. Kev xa khoom
Thauj khoom rau cov neeg siv khoom.
11. Site erection
12. Txais
Kev tsim cov txheej txheem ntawm cov khoom tiav.