The fire extinguisher can body coating production line

The fire extinguisher can body coating production line is an automated production line specifically designed for surface coating of fire extinguisher canisters. Its main purpose is to provide corrosion protection and an aesthetically pleasing appearance for the canisters. Here is a detailed description:

I. Production Line Composition

1. Pre - treatment System

   • Degreasing Unit: Removes oil and impurities from the canister surface to ensure cleanliness.

   • Water - washing Unit: Multiple water - washing stages remove residual degreasers.

   • Phosphating Unit: Forms a uniform phosphate film on the canister surface to enhance coating adhesion and corrosion resistance.

   • Drying Equipment: Uses hot - air drying or infrared drying technology to remove moisture from the canister surface.

2. Spraying System

   • Electrostatic Spraying Equipment: Utilizes high - voltage electrostatic principles to evenly coat the canister surface with powder or liquid coatings.

   • Powder Recovery System: Recovers unused powder coatings to improve utilization rates.

3. Curing System

   • Curing Oven: Cures the coating through high - temperature heating to ensure coating performance.

4. Conveying System

   • Suspension Conveying Chain: Suspends canisters and moves them continuously between various treatment stations.

   • Roller Conveyor System: Suitable for large canisters, transporting them smoothly through rolling.

5. Auxiliary Systems

   • Exhaust Gas Treatment System: Treats exhaust gases generated during the spraying process to meet environmental protection requirements.

   • Wastewater Treatment System: Treats wastewater produced during pre - treatment.

II. Process Flow

1. Loading: Hang or place fire extinguisher canisters on the conveying chain or roller conveyor system.

2. Pre - treatment: Sequentially pass through degreasing, water - washing, phosphating, and drying processes to ensure the canister surface is clean and has good adhesion.

3. Spraying: Enter the spray booth, where the coating is evenly applied to the canister surface using electrostatic spraying equipment.

4. Curing: The sprayed canisters enter the curing oven, where the coating is cured at high temperature.

5. Cooling and Inspection: The cured canisters are cooled in the cooling area, followed by appearance and quality inspection.

6. Unloading: Qualified products are unloaded from the conveying system, packaged, and stored.

III. Equipment Features

1. High - efficiency Automation: The entire production line runs automatically, reducing manual intervention and increasing production efficiency.

2. High - quality Coating: Electrostatic spraying technology ensures a uniform coating with strong adhesion and good appearance quality.

3. Environmental - friendly and Energy - saving: Advanced exhaust and wastewater treatment systems reduce environmental impact.

4. Strong Adaptability: The conveying system and spraying parameters can be adjusted according to the shape and size of different canisters.

5. Easy Maintenance: The equipment has a compact structure, making it easy to maintain and clean.

The fire extinguisher can body coating production line is widely used in the fire extinguisher manufacturing industry. It can effectively improve production efficiency and product quality while meeting environmental requirements.