This cold thread rolling machine is used to produce the open type cold forming structure section steel which meet with the width 60～750mm and thickness 0.5～6.0mm. Combined rollers are applied in this mill. The sharing rate of the rollers is up to 75%, forming scheme has been verified by...
This cold thread rolling machine is used to produce the open type cold forming structure section steel which meet with the width 60～750mm and thickness 0.5～6.0mm. Combined rollers are applied in this mill. The sharing rate of the rollers is up to 75%, forming scheme has been verified by German COPRA design software; it is easier to control the accuracy of the finished section steel products than other forming methods. Cross-section rollers which will be provided all have been verified by German COPRA design software，the reliable forming scheme and steady forming process come in our many customer practices. PLC control system and Siemens digital speed regulation unit make the whole production line simple operation and maintenance, strong versatility and wide application.
1、Raw material:
Steel roll level: CQ, SAE1008, S235, S275, S355MH (Q345)
Raw edge: after longitudinal slitting or edge milling
Steel coil material: ordinary carbon steel, low alloy steel, high strength weathering steel.
Tensile strength: σ b maximum 550 MPa
Yield strength: σ s maximum 475 MPa
Extension rate: 12% ~ 28%
Steel strip width: 60 ~ 750 mm
Steel strip thickness: 1.2 ~ 6.0 mm
Steel coil ID: Φ 600 ~ Φ 700 mm
Steel coil OD: Φ 1000 ~ Φ 1850 mm
Maximal steel coil weight: maximum 14 tons
2、Finished goods：
Opening cold forming section steel: physical size is according to the customer drawings.
Product broadening: ≤750 mm
Product width: ≤500 mm
Product height: ≤200 mm
Wall thickness: 1.2 ~ 6.0 mm
Specified length: 4.5 ~ 18 m (when product length is less than 4 m, should produce in accordance with the times ruler length.)
3、Technology performance：
Forming method: roll forming
Forming speed: 10 ~ 70 m/min(when online punching production, forming speed ≤5m\min.)
Forming stands: 22 stands
Coil and feed speed: 3 ~ 5 m/min
Unit form; Right feed
4、cold thread rolling machine Process：
Prepare coil→Coil car→Uncoil→Side guide→Pinching and leveling machine→Side guide→Shearing and butt-welding→Side guide→NC feeding→punching 1→Accumulator 1→NC feeding→punching 2→Accumulator 2→Entrance guide→Forming→Straightening→Fly saw→Collect→Storage
5、Workshop condition:
Power supply： AC380V±5% 50HZ
Control power： AC220V±5% 50HZ
Compressed air flow： 4 m³/min
pressure： 0.7 MPa
Circulating water flow: 30 tons/hour
pressure： 0.3 Mpa
Unit installed capacity： ～ 800 KW
Workshop covers an area of： 18m×200 m
Shop lifting capacity: each one unit of 16 tons and 5 tons of bridge type hoisting equipment.
6、Equipment:
1). Non-standard equipment
2)．Out-sourcing items：
3)．Roll price：material is GCr15
No | Description | Qty | Note |
1 | C type combination roll | 1set | Serial number1、4、14、21、23、34、38、43、44、46、47、49、53、54 |
2 | Hat section steel combination roll | 1set | Serial number9、10、33、39、42、50、51、52、55、 |
3 | Interior crimping channel steel combination roll | 1set | Serial number6、7、8、13、20、35、36、41、48、56、57、58、59 |
4 | Profiled interior crimping steel combination roll | 1set | Serial number11、12、17、18、19、 |
5 | Open circle pipe (primary forming Shared) | 4sets | Serial number29、30、31、32 |
6 | Angle steel combination roll | 1set | Serial number2、5、15、24、25、26、40 |
7 | Profiled steel combination roll | 5sets | Serial number3、16、22、27、28、37、45 |
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