Vuam txheej txheem thiab kev tswj hwm zoo ntawm kev tsheb nqaj hlau pob qij txha
- Dab tsi yog daim ntawv thov teeb meem txawv ntawm Flash Vuam thiab roj siab vuam?
Flash vuam (rhuab mus rau 1,300℃+ chim siab ntau dua los yog sib npaug zos ntawm 9,2}}} Haum rau cov pa railwing, nrog kev ncaj tsawg dua lossis sib npaug ntawm 0 {{{{16} {{16} {{18} Lub phiaj xwm tsheb ciav hlau siab siv cov roj siab siv roj siab welding intakenly tshaj li cov qauv ncaj qha, ua rau lub tsheb ciav hlau loj (ua rau lub tsheb ciav hlau loj (tsoo) thaum lub sijhawm dhau los.
- Cov "preheating kub li cas" nyob rau hauv kub vuam cuam tshuam rau vuam zoo?
Thia vuam preheing yuav tsum mus txog 900-1} {}}} Infusion tus nqi nce los ntawm 20%); ② Lub zog khi tensile<800MPa (standard ≥900MPa); ③ "incomplete penetration" defects in ultrasonic testing. At a construction site, insufficient oxygen pressure caused preheating temperature to only reach 800℃, resulting in 40% of joints failing inspection and requiring full rework. It is recommended to use an infrared thermometer (accuracy ±20℃) to monitor preheating temperature.
- Cov txheej txheem tseem ceeb rau "kev kho cua sov" ntawm welded pob qij txha?
Tom qab flash vuam, induction quenching (rhuab mus rau 900 qhov dej txias) yog qhov yuav tsum tau ua kom muaj weld hat}} ntau dhau (1, 000 degree) ua rau quenching backs {% ua tiav cov kab ke ntev hauv 20% ntawm pob qij txha, ua rau hauv batch scrapping .
- Yuav ua li cas yog "scanning rhiab" teeb rau ultrasonic khuam nrhiav tau?
Qhov ntsuas qhov khuam yuav tsum tau teeb tsa cov kev nkag siab ntau dua lossis sib npaug ntawm cov kev sib tw hauv qab, ua rau muaj kev sib tw ntawm Welditivity, yog txhawm rau txhawm rau txhawm rau ntsuas qhov sib piv los ntseeg tau om3mm tsis paub, nrog cov teeb liab-rau-suab nrov sib piv ntau dua lossis sib npaug rau 6dB.
- Cov kauj ruam kev ua haujlwm rau "Ciaj ncaj ncees hloov kho" ntawm welded pob qij txha?
① Measure height difference with a 1m straightedge; grind if >0 {. 3mm.}}}}} {{.. {{133) nrog prolatometer. ④ Qhov kawg kos nrog 3M chord: flatness tsawg dua los yog sib npaug rau 0.2 hli. Kev tsim kho cov chaw tsim kho cov ntxhib sim, ua rau lub log hnav thiab ¥ 500,000 hauv kev siv tus nqi tom qab 6 lub hlis.