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Hot Rolling Mill :

TINVO provides the hot rolling mill line to finish the whole hot rolling process. The main equipment includes Reheating Furnace, High-Pressure Water Descaling, Mill Stands, Flying Shear, Cold Shear, Cooling Bed, Packing and Collection Machine, Electric, Air, Lubrication System, etc. The hot strip machines are the most commonly used. The process is that Scrap steel ----melting---- casting----mold unloading----sorting-----deliver to reheating furnace----heating to 1150~1200°C---- come out furnace---- rolling---- finished product ----packing. TINVO offers design, manufacture and onsite service of the whole bar or rebar hot rolling line with computer control for advanced international standards.

Hot rolling refers to rolling performed above the metal recrystallization temperature. When the annealing temperature is high enough and the time is long enough. new strains (recrystallized cores) without stress change are generated in the fiber structure of the deformed metal or alloy, and the new grains continue to grow until the original deformed structure completely disappears, the properties of metals or alloys also change significantly. This process is called recrystallization. The temperature at which new grains begin to form is called the recrystallization temperature. The temperature at which the microstructure is completely occupied by the new grains is called the end recrystallization temperature. Generally, the recrystallization temperature is mainly affected by the alloy composition, the degree of deformation, the original grain size, and the annealing temperature.

The features of hot rolling

1. Low energy consumption, good plastic working, low deformation resistance, insignificant work hardening, easy rolling, and reduced energy consumption required for metal deformation.

2. Hot rolling mill usually uses large ingots/billet and large degrees of down rolling. The production speed is fast and the yield is high, which creates conditions for large-scale production.

3. The cast structure is transformed into the processed structure by hot rolling, and the plasticity of the material is greatly improved through the transformation of the structure.

4. The characteristics of the rolling method determine that there is anisotropy in the properties of the rolled parts. Firstly, there are obvious performance differences in the longitudinal, horizontal and high directions of the material. Secondly, there is an obvious directionality in the performance.

 

Technical Parameters of Rolling Mills

Facility Model

Power
(KW)

Linear Speed
(m/s)

Production
(T)

Rolling Pressure
(T)

Feeding Section

Weight
(T)

Rolling Specification

Annotations

JY200

22-30

1.2

1.5-3

/

30×30

2.2

Max Φ20

whorl, flat, square steel

Φ200×3

75/100

1.5

3-5

20

30×30

6.8-8.6

Max Φ20

whorl, flat, square steel

Φ220×3

130/155

1.5-2

4-8

25

50×50

14.3

Max Φ25

whorl, flat, square steel

Φ250×3

185/240

1.8-2.5

5-15

30

60×60

22.5/27.5

Max Φ34

whorl, flat, deformed, angle steel

Φ250×5

500

2.5-5

30-40

30

60×60

38

6.5 wire rod

all

Φ300×3

380/560

2-2.5

10-15/20-30

50

90×90

43.6/58

Max Φ36

whorl, angle, channel steel

Φ300×5

630

2-2.5

50-100

50

90×90

88

Max Φ36

whorl, angle, channel steel

Φ350×3

680

2-2.5

30-50/40-60

80

100×100

65/80

All

/

Φ350×5
 

800

2-2.5

80-120

80

100×100

115

All

/

Φ400×2
 

850

2-2.5

50-100

100

120×120

84

40-90

/

Φ500×2

1000

2-2.5

150

150

165×165×1400

152

50-100

except for the motor weight

Contact us

+86 13796661748
Address: Daowai, Harbin City, Heilongjiang, 150050, China.