1.Pretreatment:
Purpose: Remove oil, dust, and rust on the surface of the Electric Hydraulic Pallet Forklift Lifting Stacker, and generate a layer of corrosion-resistant "phosphate layer" on the surface of the work piece that can increase the adhesion of the spray coating.
The main process steps: oil removal, rust removal, phosphating and passivation. After the work piece of Electric Pallet Stacker is pre-treated, not only is there no oil, rust, or dust on the surface, but also a uniform and rough gray phosphate film that is not easy to rust is formed on the original silver-white shiny surface, which can prevent rust and increase the spray layer The adhesion.
2. Electrostatic spraying
Purpose: Spray the powder coating evenly on the surface of the Hydraulic Goods Lift. Special work pieces (including positions that are prone to electrostatic shielding) should be sprayed with a high-performance electrostatic spray machine.
Process steps:Using the principle of electrostatic adsorption, spray a layer of powder coating evenly on the surface of the work piece;The fallen powder is recovered through the recycling system and can be reused after being sieved.
3. High temperature curing
Purpose: Heat the powder coating on the surface of the Small Freight Elevator Lifts to a specified temperature and keep it for a corresponding time to melt, level and solidify, so as to obtain the surface effect of the work piece we want.
Process steps: Push the sprayed work piece into the curing furnace, heat it to a predetermined temperature (generally 185 degrees), and keep it warm for the corresponding time (15 minutes); open the furnace and take it out and cool it to get the finished product. Generally different work pieces have different heating temperature and holding time.
Reminder: Heating and control system (including electric heating, oil, gas, coal and other heating methods) + insulation box = curing furnace.
4. Cooling out of the oven
Cooling out of the oven is a process of cooling the result of the spraying process and returning it to normal temperature.
5. Decoration treatment
Purpose: to make the surface of Freight Hydraulic Elevator after electrostatic spraying achieve a certain special appearance effect such as: various wood grains, patterns, brightening, etc.
Process steps: overprinting; transfer and other processing technology.
