SACM645冷墩鋼材品質(zhì) 上海立沃開發(fā)生產(chǎn)量連鑄坯,一提的關鍵技術措施是盡量減輕連鑄過程中鋼水的二次氧化并確保連鑄坯低倍表面質(zhì)量:
?。?)保護澆鑄:大包、中包、結(jié)晶器采用長水口、浸入式水口、覆蓋劑、保護渣。
?。?)采用設置擋渣堰的中包并使鋼水深度超過650mm,保護渣w(Al2O3)≤4%,使?jié)茶T過程中產(chǎn)生的Al2O3夾雜物被保護渣吸收并控制較低的拉速。
(3)采用小振幅、高振頻的參數(shù),并控制結(jié)晶器液面波動不超過 20mm(無液面控制系統(tǒng));保護渣采用預溶型顆粒,少加勤加。
(4)中包鋼水過熱度在20~35℃以內(nèi),為防止中包鋼水濕度波動過大,大包、中包加蓋澆鑄;優(yōu)化連鑄二冷制度,采取氣霧冷卻技術弱冷;拉速≤1.6m/min,矯直溫度≥950℃。主要材質(zhì)有:SWRCH6A、SWRCH8A、SWRCH10A、SWRCH15A,SWRCH18A, SWRCH22A, SWRCH35K,SWRCH45K,ML08AL,ML40CR,30CrMnTi,ML20MnTiB,ML35,ML15,SWRM6-1,SCM435,B55SiCr、60Si2MnA、SWRH90A、ER70S-G、GCr15 MFT8, 35CrMo、20Cr、20Mn2、20CrMnMo、30CrMnTi、T07A、QD08,35#,45#, SCM440等價格優(yōu)惠! SCM415,SCM420,SCM435,SCM440,B7,ML20CRMO,ML35CrMO,ML42CrMO,ML20MnTiB,10B18,10B21,10B28,10B30,10B33,10B38,ML20CrMnTi,30crmnti 50BV30 GCr15 40#,45#,65#,70#,80# SWRH42B, SWRH47B, SWRH72B, SWRH77B,S10C,S20C,S40C,S50C SWRH82A,SWRH82B,87B SWRM6,SWRM10,SWRM12,SWRM15,XGM2 6 5Mn,60Si2MnA,55SiCr,60Si2CrVAT 16MNCR5 ∮6.5—42 SWRCH6A, SWRCH10A, SWRCH18A, SWRCH22A,ML08AL,ML10AL,SWRCH10K, SWRCH15K,SWRCH20K,SWRCH35K, SWRCH40K,SWRCH45K, SWRCH50K,SAE1010,SAE1012,SAE1015,SAE1020,SAE1022,SAE1035,SAE1045,