Cov txheej txheem steel hlau tsim muaj cov txheej txheem ntawm kev ua, sib dhos, thiab kev kho mob los tsim cov txheej txheem steel uas ua tau raws li cov qauv tsim. Qhov no suav nrog ntau cov kauj ruam ua tib zoo. Hauv qab no yog cov lus piav qhia ntxaws txog txheej txheem:

1. Kev Npaj Ua Ntej

Tsim thiab kos duab Review
Raws li qhov yuav tsum tau ua ntawm qhov project (xws li cov qauv hauv tsev thiab cov khoom thauj khoom), lub tuam txhab tsim ua tiav cov ncauj lus kom ntxaws ntawm cov qauv hlau, suav nrog qhov ntev ntawm cov khoom, cov kev sib txuas, thiab cov khoom siv (xws li Q235 thiab Q355).
Kev tshuaj xyuas kev kos duab yog tsim los ntawm pawg tsim, tsim khoom, thiab kev tsim kho kom paub tseeb tias tsim qauv tsim, kev ua tau zoo, thiab qhov yuav tsum tau muaj qhov tseeb kom tsis txhob muaj qhov yuam kev tom ntej.

Khoom Muag Khoom thiab Kev Tshuaj Xyuas
Hlau (xws li steel phaj, steel seem, steel kav), vuam cov ntaub ntawv (electrodes, hlau, flux), thiab fasteners (bolts thiab ceev) yog muas raws li cov kos duab yuav tsum tau.
Cov ntaub ntawv raw tau raug soj ntsuam zoo, suav nrog kev txheeb xyuas cov ntaub ntawv pov thawj, kev tshuaj xyuas qhov muag (rau qhov tsis xws li cov kab nrib pleb thiab xeb), kev ntsuam xyuas cov khoom siv (tensile thiab khoov), thiab tshuaj lom neeg kev tshuaj ntsuam xyuas kom ua tau raws li lub teb chaws tus qauv (xws li GB / T 700 thiab GB / T 1591).

II. Txheej txheem thiab tsim khoom theem

1. Txiav
Lub Hom Phiaj: Txiav cov khoom siv raw rau hauv qhov yuav tsum tau muaj qhov khoob raws li qhov kos duab qhov ntev.
Cov Txheej Txheem Feem Ntau:
Nplaim Txiav: Haum rau cov phaj tuab tuab, tus nqi qis tab sis qis dua.
Plasma Txiav: Haum rau nyias daim hlau, stainless hlau, thiab lwm yam, nrog ceev txiav ceev thiab siab precision.
CNC txiav: Khoos phis tawj tswj txoj hauv kev ua tiav qhov tseeb ntawm ± 1mm thiab tsim nyog rau cov khoom siv nyuaj.
Kev ceev faj: Burrs thiab slag yuav tsum tau muab tshem tawm tom qab txiav kom tsis txhob cuam tshuam rau kev ua haujlwm tom ntej.

2. Ncaj thiab tsim
Straightening: Hlau yuav deformed thaum dov, tsheb thauj mus los, los yog txiav. Qhov no yuav tsum tau kho cov tshuab ncaj (xws li cov menyuam ncaj) lossis nplaim taws ncaj (tso cua sov ua raws li kev ua kom txias) kom rov qab mus rau txoj kab ncaj nraim.
Kev Tsim: Ua cov khoom siv uas yuav tsum tau khoov lossis tshwj xeeb shaping, xws li:
Phaj Rolling: Rolls steel daim hlau rau hauv cov raj puag ncig lossis cov khoom nkhaus (xws li lub Hoobkas domes).
Xovxwm dabtsi yog khoov: Khoov hlau daim hlau rau hauv txoj cai-angled lossis mob-angled Cheebtsam xws li cov ces kaum thiab U-channels.
Presses: Siv cov tuag los nias qhov chaw nkhaus lossis qhov tshwj xeeb zoo li tus (xws li cov pob qij txha).

3. Ntug txheej txheem thiab qhov sib sau
Edge Processing: Milling thiab npaj ntawm weld grooves thiab kawg lub ntsej muag kom ntseeg tau tias qhov zoo ntawm weld (xws li, zawj cov ces kaum thiab blunt ntug qhov ntev raws li qhov yuav tsum tau ua).
Qhov Txoj Kev: Bolt thiab pin qhov yog machined siv lub laum xovxwm, xuas nrig ntaus, los yog CNC drilling khoom. Txoj kab uas hla qhov tseeb (feem ntau yog qib H12) thiab qhov tseeb ntawm qhov chaw (lub qhov sib txawv ntawm qhov ≤ ± 1mm) yuav tsum tau tiv thaiv kev siv lub bolts thaum lub sijhawm teeb tsa.

4. Kev sib dhos (Assembly)
Sib sau ua ke ntau yam rau hauv cov khoom (xws li, kab teeb, kab, trusses) raws li cov duab kos. Cov txheej txheem muaj xws li:
Tack Welding: Kev ruaj ntseg ib ntus nrog cov welds me me kom ntseeg tau qhov sib dhos qhov ntev.
Fixtures: Siv cov jigs tshwj xeeb thiab fixtures los xyuas kom meej cov verticality thiab parallelism (xws li, lub web thiab flange ntawm ib steel kem yuav tsum tau sib sau ua ke ntawm 90 ° kaum). Qhov tseem ceeb, xws li qhov ntev ntawm cov khoom sib txawv thiab kab pheeb ces kaum, yuav tsum tau kuaj xyuas siv cov cuab yeej xws li daim kab xev ntsuas thiab tag nrho cov chaw nres tsheb.

5. Vuam
Cov txheej txheem tseem ceeb: Permanently koom nrog cov khoom sib dhos los ntawm kev vuam. Cov txheej txheem welding:
Kev tuav arc vuam: yoog raws thiab haum rau cov pob qij txha nyuaj, tab sis tsis muaj txiaj ntsig.
Submerged arc vuam: Haum rau ntev ncaj welds (xws li butting steel daim hlau), nrog rau qib siab ntawm automation thiab zoo ib yam weld zoo.
Gas shielded vuam (CO₂ vuam, argon arc vuam): Haum rau nyias daim hlau thiab stainless hlau Cheebtsam, nrog tsawg vuam distortion.
Kev Tswj Xyuas Zoo: Preheating yuav tsum tau ua ntej vuam (rau cov phaj tuab lossis cov hlau tsis tshua muaj hlau). Kev kuaj tsis muaj kev puas tsuaj (UT ultrasonic kuaj, MT magnetic particle test) yog yuav tsum tau tom qab vuam los xyuas qhov tsis xws luag xws li tawg thiab pores.

6. Vuam Straightening
Tom qab vuam, cov khoom yuav deform (xws li khoov los yog twisting) vim thermal stress. Cov cuab yeej siv hluav taws xob lossis hluav taws xob ncaj nraim yuav tsum tau ua kom ntseeg tau tias cov khoom ncaj nraim thiab qhov sib txawv raws li qhov tshwj xeeb (piv txwv li, kab ntawv perpendicularity sib txawv ≤ H / 1000 thiab ≤ 15mm).

III. Tom qab ua tiav

Kev kho saum npoo
Kev tshem tawm xeb: Tshem tawm nplai thiab xeb los ntawm cov hlau nto los ntawm sandblasting (kev ua haujlwm siab thiab kev tshem tawm xeb tag), pickling, lossis tes polishing kom ua tiav Sa2.5 (ze-dawb) los yog St3 (txheej txheem xeb tshem tawm) tiav.
Txheej: Siv primer (xws li tiv thaiv xeb), nruab nrab lub tsho tiv no (kom nce thickness), thiab topcoat (zoo nkauj thiab huab cua-resistant). Txheej thickness yuav tsum tau raws li qhov yuav tsum tau tsim (xws li, tag nrho thickness ≥ 120μm rau sab nraum zoov steel qauv). Rau ib puag ncig tshwj xeeb (xws li, tshuaj lom neeg thiab dej hiav txwv ib puag ncig), cov tshuaj tiv thaiv corrosion (xws li, epoxy zinc-nplua nuj xim) yuav siv tau.

Kev soj ntsuam zaum kawg
Kev tshuaj xyuas tag nrho ntawm qhov loj me, qhov pom, qhov zoo ntawm vuam, thiab txheej thickness yog ua, thiab daim ntawv tshaj tawm zoo.
Cov khoom tseem ceeb (piv txwv li, choj steel kem girders thiab high-rise steel kem) undergo load testing los yog load-bearing muaj peev xwm xam.

Numbering thiab Ntim: Cheebtsam raug suav nrog raws li qhov kev txiav txim ntawm kev teeb tsa kom yooj yim rau ntawm qhov chaw nqa thiab sib dhos.
Tiv thaiv qhov chaw tsis muaj zog (xws li, lub qhov ntsia hlau thiab cov kaum ntse ntse) nrog cov ntaub thaiv npog. Ruaj ntseg cov khoom loj nrog cov hlua hlau kom tsis txhob deformation lossis kev puas tsuaj thaum thauj.

IV. Kev thauj mus los thiab kev sib koom ua ke
Thaum lub sij hawm kev thauj mus los, cov tsheb tsim nyog (flatbeds, trailers) yuav tsum raug xaiv raws li qhov loj me. Cov khoom loj loj yuav tsum muaj daim ntawv tso cai thauj mus los loj.
Peb yuav muab cov duab kos duab kos thiab cov npe ntawm cov khoom, thiab pab nrog kev nqa ntawm qhov chaw thiab qhov chaw los daws qhov sib txawv ntawm qhov sib txawv thaum lub sijhawm teeb tsa.