TPT January 2013

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January 2013 101
Article
3.3.2.2 The comprehensive energy consumption of new
roll manufacture process B of SDSF
Total comprehensive energy consumption of finished product
per ton is 1.246 ton standard coal, is only ¼ that of finished
product of similar forging roll per ton at home and abroad, and
the utilisation coefficient of material is 77.5 per cent, is more
than two times that of similar forging roll at home and abroad.
Manufacturing finished roll of per ton can save of 1.527 ton
of metal material. The compared comprehensive energy
consumption of new roll manufacturing process with
that of similar forging roll at home and abroad.
4 The compared property
of SDSF new high
chromium alloy roll with
that of similar roll at
home and abroad
4.1 Chemical composition
The chemical composition of SDSF new high
chromium alloy roll is different from that of similar
roll of other countries in the world. At the present
3.3.1.2 The accounting result of
comprehensive energy
consumption for roll
production process A of
SDSF
Total comprehensive energy con-
sumption of per ton of finished product
is 0.8794 ton standard coal, is only 1/3
of finished product consumption of per
ton of similar forging roll at home and
abroad, and the utilisation coefficient
of material is 87.5 per cent, is twice
that of forging roll of similar product
at home and abroad. Manufacturing
every ton of finished roll can save of
0.704 ton of metal material.
3.3.2 The welding pipe roll with
deep hole shape
The sizing roll of world’s biggest
Ø660HFW/ERW welding pipe mills
as example: the weight of finished
product is 1.258 ton.
3.3.2.1 The accounting result of comprehensive energy
consumption of forging roll manufacturing
process of similar product at home and
abroad
Total comprehensive energy consumption of finished product
per ton is 4.407 ton standard coal, utilisation coefficient of
material is 35.5 per cent.
Figure 2: The drawing of the world’s
biggest roll for straightening steel
pipe mill
Figure 3: The drawing of
sizing roll of world’s biggest
Ø660HFW/ERW welding
pipe mills
Table 1: The comparison of comprehensive energy consumption of finished roll production per ton
Manufacturing process Comprehensive energy consumption
(ton standard coal)
Utilisation coefficient of material
(%)
Forging roll manufacturing process
of similar product at home and abroad 2595–4407 35.5–54.1
SDSF new roll manufacturing process A 879.4 87.5
SDSF new roll manufacturing process B 1246 77.5
Figure 1: Straightening steel pipe roll, HFW/ERW welding pipe roll and cold roll formed steel roll