Description
Hot dip galvanizing line
Hot dip
galvanizing line is rolling again by the cold rolling mill of the
coil after annealing, degreasing units entered the hot-dip
galvanized zinc pot, and used for different purposes according to
finishing, chromium (chromate), Electrostatic Oiler and other
process steps for further processing.
Technical
characteristics:
Process Method: The U.S. steel associated: hot dip galvanizing line
bandwidth greater than **0mm of steel associated with the United
States
Sendzimir
method: hot dip galvanizing line bandwidth of less than **0mm
method used Sendzimir
Material: strip width :*******0mm, thickness :0.**1 .2 (1.5) mm
Material: cold-rolled carbon structural steel, quality carbon
structural steel and low alloy steel volume,
SPCC, SPCD, FH, meet GB*******1
Coating Status: Normal spangle, small
spangle, spangle finishing.
Coating
Weight: GI: meet the standard GB/T******8
Coating
thickness range (double): *****0 g/m2
Control
of zinc coating: Air knife
After plating treatment: finishing, straightening, fingerprint
resistant coating / passivated, oiled.
Continuous Annealing: horizontal / vertical; electricity, natural
gas and gas heating;
Zinc pot: zinc-frequency induction heating ceramic pot;
Light machine: Four roller, roll under the support of AC variable
frequency drive;
Straightening machine: a crescent of a correction / correction of
two bend one / two-turn two-straightening and elongation of 0.5 to
2.0%;
Drive Control: AC main drive vector frequency control system.
Product quality standards GI: meet the GB/T********4
standards
Second, the production line main
features:
1, can use without oxidation (NOF) and
radiation heating tube (RTF) techniques, fast heating, high thermal
efficiency.
2, according to user requirements set or
cancel the strip cleaning section.
3, furnace cooling protection gas
circulation by strip spray cooling, and by using the frequency
conversion adjustment, strip steel cooling speed is quick and are
well, can precisely control the zinc pot strip
temperature.
4, spraying flow ceramic induction zinc
pot, heat fast, temperature uniformity, long service life and zinc
slag less, etc. 5, the coating thickness measuring instrument can
real-time monitoring and feedback coating the actual weight, guide
the air blade adjustment (or achieve closed loop
control).
6, the two curved by a or two by two,
bending machine, which can effectively improve by plate shape and
surface quality.
7 and set light overall, can enhance
product surface quality, improve product coating sex and cold blunt
performance.
8, the electrostatic coating machine, oil
of thin strip with oil.
9, the recovery of waste heat from waste
gas technology, improving the utilization rate of heat energy,
reduce the unit operation cost.
*0, according to the needs of user, CPC,
EPC can choose import equipment, to ensure the stable production
units.
*1, using ac conversion and speed
governing drive control system, man-machine interface is good,
equipment maintenance and simple.
Three, technological
process:
Cold strip
continuous annealing galvanized unit, set annealing reduction,
galvanized, light the whole, pull to pose, passive/fingerprint
resistant coating and function section.
