Carbon-bonded steel: Kev lag luam hauv tsev carbon-bonded steel kev lag luam yog qhov ruaj khov niaj hnub no, thiab cov nqi lag luam tau hloov pauv me ntsis vim qhov nce hauv kev xa khoom siab, tab sis tag nrho kev lag luam tseem nyob rau hauv kev ruaj ntseg. Ntawm lawv, kev lag luam hais lus hauv Suzhou thiab Hangzhou yog chaotic, thaum tus nqi nyob rau hauv North Tuam Tshoj tos thiab pom. Raws li kev soj ntsuam kev lag luam ntawm Lange Iron thiab Steel Information Research Center, 45 # carbon structural steel:
3850 yuan rau Φ80mm ua los ntawm Hunan Hlau thiab hlau, 4000 yuan rau Chenggang, 3800 yuan rau Φ60mm ua los ntawm Hangzhou Hlau thiab hlau, 3700 yuan rau Φ50mm ua los ntawm Egang, thiab 3700 yuan rau Φ50mm. Φ80 yog 3850 yuan, Shougang Φ60mm yog 4100 yuan; rau 40Cr ua ke hlau, Shougang Φ20mm yog 4450 yuan, Φ110mm yog 4850 yuan, thiab Benxi Hlau thiab hlau Φ180mm yog 5300 yuan. Tsis ntev los no, vim steel mills 'kev taw qhia txog tus nqi cov cai thiab tshaj tawm ntawm kev txo qis kev lag luam kom ruaj khov, kev ua lag luam tau nres thiab tau hloov mus tos thiab saib seb qhov kev thov kev lag luam puas tau txhim kho.
Nws tau nce tab sis chav rau kev txhim kho yog txwv. Tsis tas li ntawd, raws li kev txheeb xyuas ntawm cov neeg sab hauv kev lag luam, vim tias kev lag luam yog nyob rau hauv tus txheej txheem ntawm kev poob qis thaum ntxov, qhov xwm txheej ntawm kev ua lag luam tau tsim ib qho tseem ceeb rau kev ruaj khov, tab sis kev lag luam xav tau tsis tau nce siab, uas tau ua rau cov khoom lag luam ruaj khov. Tsis ntev los no domestic carbon-bonded steel kev lag luam hloov pauv thiab poob. Tsis tas li ntawd, txij li cov khoom muag los ntawm cov tub luam yog thawj cov khoom lag luam hauv lawv txhais tes, thaum lub lag luam tam sim no poob qis, lub tswv yim ntawm cov tub lag luam yog kom tshem tawm cov khoom lag luam. Nws xav tias cov txheej txheem kev lag luam tam sim no ruaj khov yog lub sijhawm hloov kho tom qab kev lag luam poob sai, thiab kev lag luam tseem yuav tuav cov txheej txheem qis dua yav tom ntej, thiab cov khoom siv thiab kev xav tau kev sib raug zoo hauv kev lag luam tsis tau hloov.
