- Metal Processing Machinery Parts[1]
- Cast & Forged[1]
- Metallurgy Machinery Parts[1]
- Rolling Mill[8]
- Other Metal Processing Machinery[10]
- Aluminum Composite Panels[1]
- Silicon Steel[1]
- Other Construction Material Making Machinery[4]
- Packaging Machinery[4]
- Other Metallurgy Machinery[10]
- Metal Electroplating Machinery[9]
- Steel Strips[10]
- Metal Straightening Machinery[4]
- Metal Cutting Machinery[5]
- Metal Coating Machinery[10]
- Contact Person : Mr. li yijun
- Company Name : Shanghai Shanyi Metallurgical Technology Co., Ltd.
- Tel : 0086-21-60869209
- Fax : 0086-21-60869259
- Address : Shanghai,Baoshan,Rm901,906,907,Building 9th,Baoling-Center,Lane 903 of Shuangcheng Road,Baoshan District,Shanghai
- Country/Region : China
- Zip : 200940
Continuous Annealing Furnace
Carbon Steel Annealing Line main feature
Raw material, Silicon steel/ Carbon steel strip
Width--600-1500mm, thickness--0.2-1.2 (1.5) mm, Cold rolled low carbon iron SPCC, SPCD, FH, accords with GB13237-91, JIS G 3141-1996Product quality---accords with GB 13237-91
Line speed-- entry section 0-240mpm, process section 0-180mpm, exit 0-240mpmAnnum output---100,000 -- 300,000 tpy
Energy saving style--- heat recovery of flue gas.Continuous annealing furnace---Radiant tubes heating (RTF), vertical
Fuel type----natural gas, liquefied petroleum gas, mixed gas, coke oven gas and electricityWelding machine----narrow lap seam welder
Degreasing style----chemical degreasing+ electrolytic degreasing+ three stages water rinsing, vertical or horizontal Skin pass mill---four-roll wet, max. roll force 6000KNStretch leveler----two bend units, one straighten unit
Oiling style---- electrostatic oiling Electric system----PLC, AC frequency conversion control system
Automatic instrument----PLC, intelligent auto control system
Line technics flow--According to the function of the line and the process sequence of the strip, the line can be divided into entry section, process section and exit section.
The entry section mainly includes payoff reel, crop shearing, welding and degreasing procedure, which provides the processing section with continuous strip material.
The process section mainly includes annealing, skin pass mill, stretch leveler, and thus finishes the technical processing of the strip. The exit section takes charge of parting cutting and reeling of the strip.
The process flow
Coil loading→ payoff reel→ crop shear→ welding→ degreasing (alkali spray + alkali brush+ electrolytic cleaning+ water brush + 2 stages water rinsing) → dryer→ (entry looper→) heating → heat soaking → quick cooling→ overage→ re-cooling →water quenching →dryer → skin pass mill → stretch leveler→ (exit looper→) edge cutting → inspecting →oiling→ cutting→ tension reel→ coil unloading→ packing Main feature of the line
Adopts radiant tube indirect heating technique, it will get the uniform heating and good strip shape; uses light ceramic fiber will as the inner lining of the annealing furnace
A cleaning section will be set, which combines chemical degreasing and electrolytic degreasing, to improve the degreasing effect, clean the oil stain, and iron dust of the strip surface.
In the furnace, adopts protective gas recycle jet cooler and frequency conversion adjustment, which can get the effect of quick and uniform cooling.
Adopts new technology such as “overaging” and so on. • Adopts skin pass mill, which can improve the surface quality of the products efficiently, • Uses the stretch leveler with two-bending-one-straight units which will improve the strip shape and surface quality. • Adopts flue gas heat recovery technique of SHANYI patent which improve the heat utilization efficiency and decrease the running cost of the line Adopts native advanced electrostatic oiler to carry through the thin layer oiling. • Adopts CPC, EPC devices in the furnace, which ensures the correct running of the strip. Adopts AC frequency driving control system, which has good human-machine interface and the maintenance of the equipment is easy.
Continuous Annealing Furnace
