Detailed Product Description

Line main feature:
Raw material:strip width: 600-1500min, thickness: 0.2-1.2 (1.5) mm Cold rolled low carbon iron SPCC, SPCD, FH, accords with GB13237-91, JIS G 3141-1996
Product quality: accords with GB 13237-91
Line speed: entry section 0-240mpm; process section 0-180mpm; exit 0-240mpm
Annum output: 100,000 - 300,000 tpy
Energy saving style: heat recovery of flue gas, SUNNY patent
Continuous annealing furnace: Radiant tubes heating (RTF), vertical
Fuel type: natural gas, liquefied petroleum gas, mixed gas, coke oven gas and electricity
Welding 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 6000KN
Tension 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, Tension Leveler, and thus finishes the technical processing of the strip. The exit section takes charge of parting cutting and reeling of the strip.

The technics flow shows below:
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 → Tension Leveler→ (exit looper→) edge cutting → inspecting →oiling→ cutting→ tension reel→ coil unloading→ packing