1. Tshuaj muaj pes tsawg leeg tsom xam: chemical tsom xam txoj kev, instrumental tsom xam txoj kev (infrared CS meter, direct nyeem spectrometer, zcP, thiab lwm yam).
① infrared CS meter: tsom xam ntawm hlau alloys, steelmaking raw cov ntaub ntawv, steel nyob rau hauv lub C, S ntsiab.
②Direct nyeem ntawv spectrometer: C, Si, Mn, P, S, Cr, Mo, Ni, Cn, A1, W, V, Ti, B, Nb, As, Sn, Sb, Pb, Bi nyob rau hauv block specimen
③ N-0 meter: ntsuas cov ntsiab lus roj N, O
2. Cov yeeb nkab steel lub cev thiab tshuaj lom neeg kuaj:
① tensile test: ntsuas kev ntxhov siab thiab deformation, txiav txim siab lub zog ntawm cov khoom siv (YS, TS) thiab cov ntsuas plasticity (A, Z) longitudinal, transverse specimens yeeb nkab seem, arc, round specimens (¢ 10, ¢ 12.5) me me calibre, nyias -walled loj calibre, tuab-walled Calibrated nrug. Nco tseg: cov qauv elongation ntawm kev tawg nrog cov qauv loj GB / T 1760
② tej yam kev kuaj: CVN, notch C-hom, V-hom, ua hauj lwm J tus nqi J / cm2 tus qauv qauv 10 × 10 × 55 (mm) tsis yog qauv qauv 5 × 10 × 55 (mm)
③ hardness test: Brinell hardness HB, Rockwell hardness HRC, Vickers hardness HV, thiab lwm yam.
④ Hydraulic siab ntsuas: ntsuas siab, lub sij hawm siab stabilization, p=2Sδ/D
3. Galvanized seamless steel yeeb nkab txheej txheem kev xeem:
① flattening test: round specimen C-shaped specimen (S / D>{{0}}.15) H=(1 + 2) S / (∝ + S / D) L=40 ~ 100mm unit ntev deformation coefficient {{7} }.07 ~ 0.08 ib
② lub nplhaib tensile xeem: L=15mm tsis muaj qhov tawg yog tsim nyog
③ Flaring thiab crimping xeem: sab saum toj nruab nrab taper ntawm 30 degree, 40 degree, 60 degree.
Bending test: tuaj yeem hloov qhov kev sim flattening (rau cov raj loj caliber)
