The base material of the galvanized z profile steel is a cold-rolled steel sheet as an original plate, and a hot-dip galvanized coating is formed on the surface of the original plate, that is, a plated plate, and an organic coating is applied on the surface of the plated plate to form a coated plate. The coated plate is subjected to rolling cold bending, and the formed steel plate having a wave-shaped cross section along the width direction of the plate is a pressed color steel plate. Cold rolling is processed from hot-rolled sheets at room temperature, although the steel sheet is heated during the processing because of rolling, although it is called cold rolling.
Zinc-plated Z-shaped steel is cold-rolled due to continuous cold deformation of hot rolling. The mechanical properties are relatively poor and the hardness is too high. It must be annealed to restore its performance. The unannealed is called rolling hard roll. Annealing is a metal heat treatment process in which the metal is slowly heated to a certain temperature for a sufficient period of time and then cooled at a suitable rate. The purpose is to soften the material or workpiece that has been cast, forged, welded or machined, to improve plasticity and toughness, to homogenize the chemical composition, and to remove residual stress. The use of cold-rolled oil can effectively reduce the friction coefficient, low rolling energy consumption, high surface brightness and uniform rolling thickness; good cooling effect, can quickly take away rolling heat, protect rolls and rolled parts; good annealing performance, will not Produces oil burning phenomenon; has short-term anti-rust performance, can provide temporary rust protection for rolling stock.
Zinc-plated Z-shaped steel is an ideal steel material that can be used to make many products, including welded balls. Then everyone knows how to use C-shaped steel to make welded balls? It seems that it is still necessary for experts to introduce us. There are two types of methods for making solder balls, one is hot rolling and the other is cold rolling. The welding balls appearing on the market are basically hot rolled. First, the steel plate blank is hot rolled into a hemisphere, and then a sphere is formed by means of loading and unloading processing and assembly welding. The welded ball produced in this way has a fatal weakness, which is easy to produce uneven wall thickness. As for the roundness of the C-shaped steel ball, it must be controlled in the state to avoid large errors. Otherwise, it will not only affect the assembly size of the ball, but also cause the node to be eccentric, making the finished ball diameter smaller.
One of the development directions of galvanized Z-shaped steel is to continuously meet the needs of various applications and achieve multiple functions on the product. Electrical control cabinet column profiles, shelf profiles, etc. need to be pre-punched before forming. Due to the high geometrical requirements of the hole pitch and the hole, it is not allowed to produce large deformation during the bending process. Therefore, the simulation research and control measures of the pre-punching hole shape distortion of the cold bending machine are very important. Taking the pre-punched sheet as an example, a new method for controlling the distortion of the hole shape during cold forming of the cold bending machine was obtained by field experiment. Steel Profile suppliers
The mechanism of the hole distortion was analyzed and the experimental results were summarized. At the same time, the computer simulation software was used to simulate the machining process, and the field experiment results were compared with the computer simulation results. The working principle of the application is mainly to place the steel on the cold bending machine, and after contacting the roller driven by the reducer, the pressing handle is fed tightly to start the motor oil pump set, and the high pressure oil output by the electric oil pump passes through the overflow valve. In this process, the required pressure can be adjusted to enter the poly-block into the electro-hydraulic valve. The electro-hydraulic valve and the jog switch control the cylinder to work, the working cylinder advances, and the I-steel and the three supporting rollers are pressed without bending. When the deformation starts, the length of the cylinder re-propulsion is 10mm-15mm every time. The main motor is turned forward or reversed. The main motor drives the I-beam to work repeatedly.