Cov kev cai zoo rau carbon steel kav:

1. Tshuaj muaj pes tsawg leeg

Yuav tsum tau muab tso rau pem hauv ntej rau cov ntsiab lus ntawm teeb meem tshuaj Cheebtsam As, Sn, Sb, Bi, Pb thiab gas N, H, O, thiab lwm yam. txo cov non-metallic inclusions nyob rau hauv lub raj billet thiab txhim kho nws lub xeev faib, molten steel feem ntau refined los ntawm refining khoom sab nraum lub cub tawg, thiab txawm lub raj billet yog remelted thiab refined los ntawm ib tug electroslag rauv.

2. Dimensional raug thiab cov duab

Cov txheej txheem geometric ntawm cov pa roj carbon steel kav yuav tsum suav nrog txoj kab uas hla ntawm cov yeeb nkab steel: phab ntsa thickness, ellipticity, ntev, curvature, inclination ntawm lub ntsej muag kawg ntawm cov yeeb nkab, bevel kaum sab xis thiab blunt ntug, cross-sectional loj ntawm cov opposite pw ua niam txiv. cev ym.

3. Nto zoo
Tus txheej txheem qhia txog qhov yuav tsum tau ua rau "surface finish" ntawm carbon steel seamless kav.Cov kev tsis xws luag muaj xws li: kab nrib pleb, plaub hau, sab hauv folds, txheej folds, crushing, puab straights, txheej txheej, sib cais txheej, caws pliav, pits, convex hulls, hemp pits (pimples), khawb (scratches), internal spirals, sab nraud spirals, ntsuab. Cov kab, concave kho, cov menyuam luam ntawv, thiab lwm yam. Ntawm lawv, cov kab nrib pleb, sab hauv folds, txheej folds, crushing, delamination, caws pliav, pits, convex hulls, thiab lwm yam yog qhov txaus ntshai tsis xws luag, thiab pitted nto, xiav kab, khawb, me ntsis sab hauv thiab Cov kab ncaj nraim sab nraud, me ntsis sab hauv thiab sab nraud spirals, concave kho, thiab yob cov cim ntawm cov yeeb nkab steel yog qhov tsis xws luag.

4. Lub cev thiab tshuaj muaj zog
Nrog rau cov khoom siv kho tshuab ntawm chav tsev kub thiab ntawm qhov kub thiab txias (lub zog thermal thiab cov khoom kub tsis tshua muaj siab) thiab corrosion kuj (xws li oxidation tsis kam,
Dej corrosion kuj, acid thiab alkali tsis kam, thiab lwm yam) feem ntau nyob ntawm cov tshuaj muaj pes tsawg leeg, microstructure thiab purity ntawm cov hlau, nrog rau cov txheej txheem kev kho cua sov ntawm cov hlau.Qee zaum, qhov kub thiab txias ntawm qhov deformation ntawm cov yeeb nkab steel kuj tseem cuam tshuam rau kev ua haujlwm ntawm cov yeeb nkab steel.

5. Cov txheej txheem ua haujlwm
Xws li flaring, flattening, hemming, dabtsi yog khoov, nplhaib kos duab thiab vuam zog ntawm cov kav hlau steel.

6. Metallographic qauv
Nrog rau cov qauv qis-magnification thiab high-magnification qauv ntawm steel kav.

7. Cov cai tshwj xeeb
Cov kev xav tau tshaj li cov qauv tsim los ntawm cov neeg siv thaum siv cov kav dej steel.