Kev xaiv khoom thiab ua ntej- kho
Khoom Specifications: Lub semi-trailer chassis feem ntau siv siab - lub zog qis- hlau alloy (xws li Q345B), nrog lub thickness ntau ntawm 6-12 hli (xa mus rau GB / T 1591-2018), thiab lub zog tawm los ntawm Ntau dua 5 MP urbearing peev xwm ntawm 3 thiab 4. Lub teeb hnyav tsim.
Cov txheej txheem ua ntej- kev kho mob: Cov hlau yuav tsum tau txhaj tshuaj blasting (Sa2.5 qib kev huv) thiab kev kho phosphating los txhim kho cov adhesion ntawm cov txheej tom ntej.
Txiav thiab sib sau
Laser/plasma Cutting: CNC tej tshuab (yuam kev ± 0.5mm) yog siv rau blanking, thiab ib tug ua hauj lwm pub ntawm 2-3 hli yog tshwj tseg rau cov khoom tseem ceeb xws li longitudinal beams.
Khoov thiab Punching: Kev sib sau ua tiav siv lub tshuab hydraulic dabtsi yog khoov (siab 800-1200 tons), thiab lub vojvoog dabtsi yog khoov yuav tsum siab dua lossis sib npaug li 1.5 npaug ntawm lub phaj tuab (kom tsis txhob tawg).
Vuam thiab Assembly
Vuam txheej txheem: CO₂ gas shielded vuam (welding hlau ER50-6) yog siv rau longitudinal thiab transverse beams, thiab lub zog vuam yuav tsum ncav cuag ntau tshaj 90% ntawm lub hauv paus hlau.
Fixtures: Cov khoom siv tshwj xeeb yog siv los xyuas kom meej tias kab pheeb ces kaum sib txawv ntawm lub chassis tsawg dua lossis sib npaug li 3 hli (raws li QC / T 252-2011 tus qauv).
Kev kho cua sov thiab kho
Stress Relief Annealing: Kub rau 600-650℃thiab tuav rau 2 xuab moos kom tshem tawm cov kev ntxhov siab welding seem.
Kev Kho Txias Txias: Lub zog hauv zos (tsawg dua lossis sib npaug li 50 tons) yog siv rau qhov chaw deformed kom ntseeg tau tias qhov kev ua yuam kev flatness ntawm<2mm/m.
Txheej thiab tiv thaiv corrosion
Primer Txau: Epoxy zinc-nplua nuj primer (qhuav zaj duab xis thickness Ntau dua los yog sib npaug rau 60μm), ntsev tsuag tshuaj ntsuam ntau dua los yog sib npaug rau 500 teev.
Txheej Txheej Txheej: Polyurethane topcoat (thickness 40-50μm), ci kub 80-100 degree.
Kev soj ntsuam zoo
Tsis yog-Kev kuaj kev puas tsuaj: Ultrasonic kuaj yog siv los soj ntsuam welds (feem ntau dua lossis sib npaug li 10%), thiab tus nqi tsis zoo yuav tsum yog<0.5%. 2. Load testing: Simulate 1.5 times the rated load (e.g., testing a 40-ton frame with 60 tons) for 24 hours without deformation.
