There are many limitations in the spraying of large construction machinery and metal frames. The workpiece occupies a large space and is bulky, so it is inconvenient to move and transport, and requires a large space occupation. Various types, most of them will choose sand blasting and soot blowing after spraying paint drying, can be made into a unit of sand blasting room, spraying paint drying room into a unit, in the middle of the use of flat car power transmission. Kind of paint has two choices, natural drying type and low temperature drying type. This form is suitable for agricultural machinery, construction machinery, large-scale machine accessories, aircraft, wind turbine blades, train boxes, motor car boxes and other products. Kind of product is small in volume, demanding, difficult to operate and turnover, and demanding for the site.
There are also some products, super-large and special-shaped, which require electrostatic powder spraying. Because there is no pollution of water and air, and electrostatic spraying powder rate is high, efficiency is fast, in some harsh environments, anti-corrosion Performance is superior, so some customers choose powder spraying process. Hanging point products, as far as possible hanging more and more powder spraying, as far as the bottom of the product operation, no hanging point, do not have hanging products, transport spraying in The form of flat car. Powder drying temperature requires about 180 degrees, flat car is driven into the curing furnace, so in terms of power, more consideration should be given to how to separate power from flat car to prevent power from entering the drying furnace .
One drawback of flat car transportation is that the bottom is inconvenient to operate, and there will be blind areas where the bottom supports. Suspension conveying is easy to operate. It requires high enough factory buildings, hanging points for products, high requirements for chains and high requirements for overall load.
Powder spraying technology for large construction machinery and metal frame:
Upper part – sandblasting – dust removal – powder blasting – powder drying – cooling – lower part
Spraying process for large construction machinery and metal frames:
Top – Sandblasting – Dust Removal – Paint Spraying – Paint Drying – Cooling – Down