Metallurgy
Techniques -Cold
Rolled Ribbed Steel Bars Production Based on Innovative
3-Roller Continuous Cold Mill
Introduction
Chinese company offers the technology
for production of cold rolled ribbed steel bars using
an innovative mill. This Y-type motor driven 3-roller
continuous cold mill is a new technology which was successfully
developed by local experts in mid 1990's. The production
process involves the following steps: Heated rolling
coil - uncoiling - descaling - shaping - collecting
coil-straightening - length cutting - collecting stripes
The main technical data is as follows: Products specifications
- diameter from 5 mm to 14 mm Products standards - Chinese
standards GB13788-92 Tensile strength - 550 MPa Cold
measures - recycle emulsion Capacity - 200 kw Total
weight - 14 tons Size - 6,000 x 19,000 mm Control measure
- speed adjustment by dc motor/PLC control Main construction
specifications of the mill and other equipment are as
follows:
1. Coil releasing stand Weight - 1.5
tons Construction - welding steel construction Driving
ways - positive 2. Mechanical descaling machine Construction
- horizontal / vertical roller Roller size - diameter
from 100 to 150 mm Quantity - horizontal 3, vertical
5 Motor - dc motor of 5.5 kw 3. Y-type motor driven
3-roller continuous cold mill Construction - motor bases
are connected in series Lay-out - Y type (alternated
120 degrees with each other) Roller size - diameter
of 220 mm (various from the products specifications)
Roller groups - 2 to 4 (each group contains 3 rollers)
Rolling speed - from 0 to 6 meters per minute (adjustable)
Drive motor - dc motor of 160 kw 4. Roller straightening
machine Construction - horizontal or vertical Roller
parameters - diameter 220 mm, quantity 13 sets Motor
- 20 kw 5. Coil collecting machine Diameter - 2,000
mm Load capacity - 1.5 tons Construction - welding steel
Drive way - positive 6. Rule, cut and collection device
Construction - welding steel table, operated manually
Flying shears construction - four continuous rods, 5.0
kw Collection device construction - welding steel stand
Operation table - 1 set with PLC control 7. Recycle
cooling system - motor 5.0 kw 8. Specific tools - 1
set
Area of Application
Metalworking industry, steel industry.
The mill can be used for the production of high intensive
ribbed steel bars and wires for buildings, as well as
billets
Advantages
Compared with the old production technology
of cold ribbed steel bars, the mill has many advantages;
It is unnecessary to undertake such operations as tipping
the head of the coil and many times moulding in advance
Continuous rolling is automatical
Development
Status Commercialised
Transfer Terms
Equipment Supply
Contact for more information:
Asian and Pacific Centre for Transfer
of Technology
APCTT Building
C-2 Qutab Institutional Area
P.O.Box - 4575
New Delhi - 110 016
India
