Qingdao Baosen Steel Co.,LTD |
B: Annealing Furnace: thickness: 0.3mm to 2.0mm
1. Cold rolled steel coil simple products:
As the name suggests, this kind of steel is processed while cold.
It is manufactured from hot rolled coil that has been chemically
cleaned before being rolled. The cold rolled steel coil is
initially cold, however while being reduced, the coil will get
hotter as the steel work hardens.
2. Cold rolled steel coil technical process:
The cold rolling reduces the thickness of the steel and at the same
time changes the mechanical properties of the steel. Cold rolled
steel coil must be further processed, as the steel will react with
water in the air and form rust. In most cases, it is covered with a
thin layer of oil to prevent oxygen reacting with surface.
3. Cold rolled steel coil wide application:
Steel coils can be annealed (heated in a controlled atmosphere) to
make the steel more formable (cold rolled annealed) or further
processed on the metallic coating line, with a coating of either
zinc (galvanised) or zinc-aluminium alloy applied. Cold rolled
steel coil is available in a range of grades, each with a range of
properties for differing applications.
4. Cold rolled steel coil main products:
Commonly cold rolled steel coil includes sheets, strips, bars, and
rods. These products are usually smaller than the same products
that are hot rolled. Because of the smaller size of the workpieces
and their greater strength, as compared to hot rolled stock,
four-high or cluster mills are used.
5. Why choose us?
1. PANHUA advantages: We have two production line of pre-painted
steel coil and two lines for the galvanized steel coil, total
yearly output is about 500000mt.
2. Special technology support: We have two production line of
pre-painted steel coil and two lines for the galvanized steel coil,
total yearly output is about 500000mt. In order to meet our
customers new requirements,
3. We also can manufacture the special products, such as Printed,
Filmed, Pressed, Matte steel coil and the full hard G550 galvanized
steel and galvalume steel.