CSP B Development of micro-alloying 1 replies,320 views
#1
Posted 28 Dec 2010 23:42
With the thin slab casting and rolling technology widely used, people gradually realized the thin slab casting and rolling production of hot rolled coil structure refinement, high strength, cold-rolled material not suitable for the characteristics used by the on the traditional process to a low carbon aluminum killed steel can be achieved with traces of grain coarsening B experience inspired the beginning of CSP B micro-alloying technology. Thin slab casting and rolling steel B without the ferrite grain size of 9 to 10, the grain size is 13.8 m, micro-alloying with B, after B plus ferrite grain size of 7 ~ 8, the grain size is 23.3 m, that increase the grain of steel B was coarse. Studies have shown that cold-rolled steel materials 08Al mass fraction (40 ~ 60) 10-6 in the B, in the hot rolling, cold rolling and annealing under the same circumstances, the yield strength decreased, the basic formability index n, r values decrease, fiber texture was weakened, Goss texture and rotated cube texture was enhanced. Research also believes that mass production of cold rolled plate DQ-class performance test data and found that the thickness 0.5 ~ 2.5mm strip the r0 value of 1.84 or above average, indicating a thin slab casting and rolling process on the deep-drawing cold rolled sheet performance is good. Currently, it has been on the B ferrite grain coarsening and reduce the strength of a clear understanding of the mechanism, and generally micro alloying with B solution to CSP the problem of high strength cold-rolled material has been mass production of cold-rolled steel materials SPHC, SPHD and SPHE.
#2
Re: CSP B Development of micro-alloying
Posted 05 Sep 2011 05:44
Wanted EAF Mill Manager (with relocation to Russia) for United Metallurgical Company ( http://www.omk.ru/en/ )
Location is in city Viksa (Russia): http://maps.google.com/maps?hl=ru&newwindow=1&q=%D0%B2%D1%8B%D0%BA%D1%81%D0%B0&gs_**=c&gs_upl=4739l5548l0l8066l5l5l0l0l0l0l285l1308l2-5l5l0&bav=on.2,or.r_gc.r_pw.&biw=1467&bih=687&wrapid=tlif131373833812310&um=1&ie=UTF-8&sa=N&tab=wl
Requirements:
- Engineer Degree (Metallurgy)
- with proven record of success in Quality Assurance, Process Engineering and Production Supervision in large Steelmaking Company
- easy to learn, responsible and good communication skills
- multiyear experience in EAF Steelmaking and Thin Slab Continuous Casting.
Details:
The number of employees under EAF mill manager supervision is 407.
Directly report to the Chief Operating Officer.
In direct subordinate are:
- Maintenance manager (mechanic)
- Maintenance manager (electric)
- Process control manager
- Mill manager deputy (production)
EAF mill manager also closely cooperates with Quality and Technology Department, for any issues related technology or quality.
EAF mill is 3 years old and apply a latest technologies in steel making:
- bottom tap furnace (working volume is 160 tones, 24/7 operation)
- 2 LRF
- Vacuum degasser
- Thin Slab Continues Caster
EAF produces 30 different steel grades.
EAF mill includes 5 areas:
- Scrap yard
- Preparation Area
- Steel melting area
- Caster
- Ladles Relining area
EAF Mill Manager objectives:
- To reduce melting time (- 5 minutes) (heat size is 160 tones)
- To increase the monthly steel production (with index 110)
- To increase EAF yield (+3%)
- To increase caster yield up to 98,5 %
- To maintain high level of operation efficiency and keep safety recordable on zero.
my e-mail: elena.tsegelnik@woosterhound.com
Location is in city Viksa (Russia): http://maps.google.com/maps?hl=ru&newwindow=1&q=%D0%B2%D1%8B%D0%BA%D1%81%D0%B0&gs_**=c&gs_upl=4739l5548l0l8066l5l5l0l0l0l0l285l1308l2-5l5l0&bav=on.2,or.r_gc.r_pw.&biw=1467&bih=687&wrapid=tlif131373833812310&um=1&ie=UTF-8&sa=N&tab=wl
Requirements:
- Engineer Degree (Metallurgy)
- with proven record of success in Quality Assurance, Process Engineering and Production Supervision in large Steelmaking Company
- easy to learn, responsible and good communication skills
- multiyear experience in EAF Steelmaking and Thin Slab Continuous Casting.
Details:
The number of employees under EAF mill manager supervision is 407.
Directly report to the Chief Operating Officer.
In direct subordinate are:
- Maintenance manager (mechanic)
- Maintenance manager (electric)
- Process control manager
- Mill manager deputy (production)
EAF mill manager also closely cooperates with Quality and Technology Department, for any issues related technology or quality.
EAF mill is 3 years old and apply a latest technologies in steel making:
- bottom tap furnace (working volume is 160 tones, 24/7 operation)
- 2 LRF
- Vacuum degasser
- Thin Slab Continues Caster
EAF produces 30 different steel grades.
EAF mill includes 5 areas:
- Scrap yard
- Preparation Area
- Steel melting area
- Caster
- Ladles Relining area
EAF Mill Manager objectives:
- To reduce melting time (- 5 minutes) (heat size is 160 tones)
- To increase the monthly steel production (with index 110)
- To increase EAF yield (+3%)
- To increase caster yield up to 98,5 %
- To maintain high level of operation efficiency and keep safety recordable on zero.
my e-mail: elena.tsegelnik@woosterhound.com
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