今 价:邢台20MnB5结构钢管料@商
碳素结构钢 S09CK S10C S12C S15C S17C S20C S20CK S22C S25C S28C S30C S33S S35C S38C S40C S43C C S58C
合金结构 Mn443 SMn43 SCr415 SCr42 SCM420 SCM4 SCM435 SCM44 SNCM815 SACM645
保证淬透性结构钢
SMn420H SMn433H SMn438H SMn443H SMn20H SMn43H SCM822H SN15H SNC631H SNC631H SNC815H SNCM220H SNCM420H
易
切削钢 SUN21 SUM22 SUM22L SUM23 SUM23L SUM24L SUM25 SUM31 SUM32 SUM41 SUM42 SUM43
冷镦钢 SWRCH6R SWRCH8R SWRCH10R SWRCH12R SWRCH15R SWRCH17R SWRCH6A SWRCH8A SWRCH10A SWRCH12A SWRCH15A SWRCH16A SWRCH18A SWRCH19A SWRCH20A SWRCH22A SWRCH25A SWRCH10K SWRCH12K SWRCH15K SWRCH16K SWRCH17K SWRCH18K SWRCH20K SWRCH22K SWRCH24K SWRCH25K SWRCH27K SWRCH30K SWRCH33K SWRCH35K SWRCH38K SWRCH40K SWRCH41K SWRCH43K SWRCH48K SWRCH50K
簧钢和
轴承钢 SUP6 SUP7 SUP9 SUP9A SUP10 SUP11A SUP12 SUP13 S50C-CSP S50C-CSP S55C-CSP S60C-CSP S65C-CSP S70C-CSP SK85C-CSP SK55C-CSP SUP10-CSP
焙烧温度在65～75℃间，铁精矿品位、率随着温度增加而升高。因为反应速率加快，磁化率不断增加，焙烧效果也越来越好。在75℃时，精矿品位和率达到一峰值；焙烧温度在75℃之后，始发生过还原反应，生成一定的弱磁性浮氏体或含铁
硅酸盐，故精矿品位、率随温度的上升都降低。通过本研究，得出混合磁化焙烧-弱磁选工艺的试验条件是：焙烧温度75℃、焙烧时间6min、磨矿粒度－2目、磁选激磁电流1.A。今 价:邢台20MnB5结构钢管料@商
