Q:STCC what's the quality of the cold rolled steel sheet?
STCC cold-rolled steel sheet is made of low carbon cold-rolled steel sheet.
Q:What is hot and cold rolled steel plate? How to distinguish? What high hardness? Which will produce noisy eye?
As the name suggests, hot rolling, rolling temperature is high, so the deformation resistance is small, can achieve large deformation in rolling steel plate. For example, the general continuous casting slab thickness is about 230mm, and after roughing mill and finishing mill, the final thickness of 1~20mm. at the same time, because the steel plate width thickness ratio is small, the size precision is relatively low, not easy appear the flatness problem, mainly to control the convexity. For the organization required, generally through controlled rolling and cooling control is realized, microstructure and mechanical properties of the rolling temperature, finishing temperature and coiling temperature to control strip finishing. Cold, generally in the heating process is not open before rolling. However, because the strip thickness is small, it is easy to appear the flatness problem. Moreover, after cold rolling is finished, therefore, in order to control the dimensional accuracy and surface quality of steel strip, using a lot of tedious process. The cold rolling production line, equipment, process complex With the user to improve the shape and surface quality of the strip size precision, plate, cold rolling mill control model, L1 and L2 system, the shape control means relative to hot. And temperature is one of the important control index of rolls and strip.
Q:What is called steel plate sanding process?
The friction requirement of high strength bolts on the joint surface is accomplished by sand blasting.
Q:Can Q460C steel plate be used as Q235 steel plate?
Q460 Q235 is not recommended when using their mechanical properties, the gap is too large, the yield strength of Q460 basically is 2 times that of Q235, the elongation is worse than that of Q235, but the problem is not used alone, if used in combination with other components, the effect is not very good, but also not conducive to the overall structure of the force transfer, like cotton in the wire, when the tensile force, most will function in the small deformation component, with low elongation, brittle fracture, which is why when substitute materials are used as close as possible. If you want to weld, it is even more troublesome, Q460 welding performance is poor, the welding process requirements are high, can not be treated as simple as welding Q235, which is also an increase in cost.
Q:The difference between steel edge sealing strip and steel plate putty water stop belt
The steel sealing strip is made of pure steel plate and can be divided into galvanized steel sheet, ordinary steel plate and stainless steel water stop belt.
Q:What material is steel plate against drilling?
There is also an ordinary steel sheet drilling method: steel plate carburizing, quenching treatment, to achieve high hardness.
Q:Why should the back of the steel sheet pile cofferdam be pumped after the construction of the pile cap?
Loading and unloading steel sheet piles should be operated by two points lifting method. The number of steel pile piles should not be too many at any time, and attention should be paid to the protection of the locking hole to avoid damage.
Q:Is the steel plate 1.5 meters wide and 2 meters wide at the same price? .
For specific quotation, you need to consult the seller of the steel plate, you give him the size you want, and he will calculate the situation after cutting to quote you.
Q:Is the pattern steel plate hot-dip galvanized steel?
The pattern steel plate is hot-dip galvanized steel sheet, and its manufacturing process is in the form of hot dip galvanized steel sheet:1. Hot embossing;2 CNC punching and bending;3 、 welding and splicing.
Q:What does galvanized steel sheet "-PPGI" mean?
Advantages: it has both mechanical strength and formability of the steel plate, as well as good decoration and corrosion resistance of organic materials. Coating adhesion is strong, can maintain colour and lustre for a long time novel.