Hom Japanese hom
Hom Japanese hom nyob rau hauv dav dav thiab mechanical structural steel daim hlau
1. Ordinary structural steel nyob rau hauv Japanese steel (JIS series) qib yog tsim los ntawm peb qhov chaw: thawj feem sawv cev rau cov khoom, xws li: S (Steel) sawv cev hlau, F (Ferrum) sawv cev hlau; qhov thib ob sawv cev rau cov duab sib txawv thiab hom, lub hom phiaj, xws li P (Plate) sawv cev rau phaj, T (Tube) sawv cev rau raj, K (Kogu) sawv cev rau cov cuab yeej; qhov thib peb sawv cev rau tus yam ntxwv tus lej, feem ntau yog qhov tsawg kawg nkaus tensile lub zog. Piv txwv li: SS 400 - thawj S sawv cev rau cov hlau, qhov thib ob S sawv cev rau "cov qauv", 400 yog qhov qis zog tensile zog ntawm 400MPa, thiab tag nrho sawv cev rau cov qauv hlau zoo tib yam nrog lub zog tensile ntawm 400MPa.
2. SPHC - Thawj S yog cov ntawv luv ntawm Steel, P yog cov ntawv luv ntawm Plate, H yog cov ntawv luv ntawm Kub, thiab C yog cov ntawv luv ntawm Kev Lag Luam. Tag nrho cov sawv cev feem ntau yog siv cov hlau kub dov thiab steel strips.
3. SPHD-xws li kub dov steel daim hlau thiab strips rau stamping.
4. SPHE-xws li kub-kuav los tiag steel daim hlau thiab strips rau kev sib sib zog nqus nqus.
5. SPCC-qhia tias cov ntawv txias-kuav los tiag carbon steel ntawv thiab steel strips feem ntau yog siv. Qhov thib peb tsab ntawv C yog lub ntsiab lus ntawm Txias. Thaum nws tsim nyog los xyuas kom meej qhov ntsuas tensile, ntxiv T thaum kawg ntawm qib los qhia SPCT.
6. SPCD - sawv cev rau cov ntawv txias-kuav los tiag carbon steel ntawv thiab strips rau stamping, sib npaug rau Tuam Tshoj tus 08AL (13237) high-quality carbon structural steel.
7. SPCE-txhais tau txias-kuav los tiag carbon steel nplooj ntawv thiab strips rau kev sib sib zog nqus nqus, sib npaug rau Tuam Tshoj tus 08AL (5213) sib sib zog nqus nqus hlau. Thaum tsis ua raws sijhawm yuav tsum tau ua kom ntseeg tau, ntxiv N mus rau qhov kawg ntawm qib los qhia SPCEN.
quenching thiab tempering lis dej num ntawm txias-kuav los tiag carbon steel los xij thiab steel strips: annealed lub xeev yog A, txheem quenching thiab tempering yog S, 1/8 hardness yog 8, 1/4 hardness yog 4, 1/2 hardness yog 2, thiab hardness yog 1.
Cov txheej txheem deg: D rau matte tiav dov thiab B rau ci tiav dov. Piv txwv li, SPCC-SD sawv cev rau cov txheej txheem quenched thiab tempered, matte tiav dov, feem ntau yog siv cov ntawv txias-dov carbon. Lwm qhov piv txwv yog SPCCT-SB, uas sawv cev rau cov ntawv txias-dov cov pa roj carbon monoxide nrog cov txheej txheem tempering thiab kev ua haujlwm ci ntsa iab, yuav tsum tau lav cov khoom siv kho tshuab.
8. Txoj kev qhia ntawm JIS steel qib rau cov khoom siv tshuab yog: S + carbon cov ntsiab lus + tsab ntawv code (C, CK), uas cov ntsiab lus carbon tau qhia los ntawm tus nqi nruab nrab × 100. Tsab ntawv C: sawv cev rau carbon. K: sawv cev rau carburizing steel. Piv txwv li, cov ntsiab lus carbon ntawm carbon dov phaj S20C yog 0.18-0.23%.
