135M Finishing Mill Group

The finishing mill group is the extra-heavy top cross 45° high-speed wire rod line designed for the high-speed wire-rod production line.

 

Product Description

 

The finishing mill group is located in the high-speed wire-rod workshop. Rolling by 10 unit rack continuous micro-tension rolling mill , rolling the ∅17 ~ ∅21mm of rolled piece transported from upstream into ∅5.5 ~ ∅16mm finished wire rod. The mill guaranteed exit speed is 90m/s. (When the specification of finished product is ∅5.5mm)

 

 

 

1. Process parameters:

 

Incoming specifications: 17～21mm

 

Incoming material temperature: 850℃

 

Finished product specifications: 5.5～14mm

 

Rolled steel types: plain carbon steel, low alloy steel, high alloy steel, high-quality carbon structural steel

 

Exit speed of the 10th aircraft: 90m/s.

 

 

finishing block mill Hangji performance

 

1．Technological parameter:

 

Incoming material Specification： ∅17～21mm

 

Incoming material temperature： >850℃

 

Finished product specification： ∅5.5～14mm

 

Rolled steel type：carbon steel, low alloy steel, high alloy steel, high-quality carbon steel, structural steel.

 

Exit speed of the tenth rack：90m/s。

 

2．Equipment performance：

 

Mill form：Cantilever roller ring rolling mill

 

Rack quantity：10 stands(1~5 stands are ∅230 rolling mills,6~10 stands are ∅170 rolling mill)

 

Arrangement form：Top cross 45°,10 stands combined drive

 

Roller ring size：∅230 rolling mill：∅228.34~∅205×∅126×72mm; ∅170 rolling mill：∅170.66~∅153.5×∅95×62mm;

 

Rolling force： ∅230rolling mill：152kN; ∅170rolling mill：107.8kN

 

Rolling torque： ∅230rolling mill：2.86kNm; ∅170rolling mill：1.61kNm

 

Driving motor： DC motor; Power：1600kW×3stand. or 5500 kWAc frequency conversion motor. Revolving speed：700~1200 r/min; Working revolving speed：900~1100r/min

 

 

 

The unit lubrication way：Thin oil lubrication; System oil pressure：0.35～0.6MPa; Total consumption：1500L/min; Oils：Mobil 525; Cleanliness：10m

 

Roll cooling water： water pressure： 0.6MPa; Consumption：Maximum 10´30m3/h

 

Guard hydraulic system：Working pressure：20MPa; Systems flow：35 l/min

 

Mounted roller working pressure：Max 25MPa

 

Unload roller working pressure：Max 45MPa

 

Attachment：Unload roller tool(∅230) 1set; Mounted roller tool(∅230) 1set; Unload roller tool(∅170) 1set; Mounted roller tool(∅170) 1set; Changing roller hydraulic pump 1set

 

Unit composition ：∅230 rolling mill (5 stands), 170 rolling mill (5 stands),speed increasing box, large base, breakwater and capillary groove, buffer tank, protective cover,couplings, pipes of finishing train etc.

 

 

 

Structural characteristics of finishing mill：

 

Finishing mill totally contains 10 units,composed by 5 stands 230 rolling mill and 5 stands 170 rolling mill ,the 10 stands racks is arranged by 45 top cross type . Before 5 stands roller ring diameter is 228.34 ~ 205 × 72mm, after five stands roller ring diameter is 170.66 ~ 153.5 × 70mm, 10 stands racks driving intensively.

 

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