The so-called spring zinc colour coating combined production line is that the base plate is rolled up, then galvanized, and then entered the colour coating process.
Its main characteristics are:
(1) The original passivation and oiling procedures at the outlet section of galvanizing line are omitted.
(2) The degreasing and cleaning process of the color coating line is omitted.
(3) It saves manpower, material resources and time in the transportation process from galvanizing to color painting line.
The joint production line usually has tension-bending straightening equipment between galvanizing and colour painting processes to ensure the quality of the layout entering the colour coating section, so that the colour coating will not appear quality problems such as leakage. However, because of the large number and complexity of equipment, this type of unit layout increases the probability of failure parking and is prone to product quality accidents.
The combined production line of galvanizing and colour coating can be divided into hot galvanizing and colour coating production lines (Fig. 1-8) and electrogalvanizing and colour coating production lines. The process of the colour coating part of the two combined production lines is the same, but the composition of the front-end equipment is different, one is hot galvanizing, the other is electrogalvanizing and other two different kinds of work. Art. According to the information, there are many small and medium-sized combined production lines of galvanizing and colour coating in China. Up to now, the hot-dip galvanizing and colour coating combined production line has not been put into operation.