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Views: 144 Author: Site Editor Publish Time: 2019-05-23 Origin: Site
When it comes to security assurance in life, doors are definitely on the list. Every house, factory, and company has one or more doors. Wherever there are rooms, there are doors. Long time ago, the application range of wooden doors is wider, but for safety sake, metal doors replaced wooden doors gradually. In production process, after other procedures are accomplishing, workers usually make surface treatment of metal doors for longer service life, so that it is more moisture-proof and corrosion-resistant. Powder coating is the best selection to do this part.
Powder coating is a type of coating that is applied as a free-flowing, dry powder. Unlike conventional liquid paint which is delivered via an evaporating solvent, powder coating is typically applied electrostatically and then cured under heat. It is usually used to create a hard finish that is tougher than conventional paint. Powder coating is mainly used for coating of metals, such as household appliances, aluminum extrusions, drum hardware, metal doors and automobile and bicycle parts.
COLO supplies full system for metal doors from pretreatment to powder coating, including pretreatment process, powder coating gun, powder coating spray booth and powder coating curing oven, ranges from small scale to batch production.
It is a crucial step that determines the durability and longevity of metal doors. In production line, it use chemical agent to remove dust, grease, or any other contaminants. This ensures that the surface is clean enough to enhance adhesion and prevent defects, be prepared for powder coating. We provide two pretreatment methods, dipping and spraying for metal doors.
There are two systems for clients to meet their different requirements, manual powder coating system and automatic powder coating system. COLO-191S Manual Powder Coating Spray Gun, characterized with digital valve control, is taking advantage of all powerful functions and well-performed for both beginners and specialists. COLO-2200D Automatic Powder Coating Reciprocator with COLO-191S Automatic Powder Coating Gun ensures great powder coating effect, achieves continuous and uniform powder coating, provides more precise and smooth movement.
COLO-3212 Manual Powder Coating Booth ideally supports for conveyorized coating applications pursuing most efficient system option. This conveyor powder coating booth designed with dual working station gives access to coat both sides using manual or automatic spray equipment. This design is specially proper for powder coating metal doors.
Metal doors are heated in an powder coating oven at a fixed temperature until powder has been melt uniformly to form a hard and durable coating film when cooled. COLO powder coating oven's temperature reaches to 180 ° C in 15-20 minutes, heating rapidly. Powerful circulation fan motor makes uniform heat distribution to ensure consistent powder coating effect of metal doors.
This is COLO designed, manufactured and installed Automatic Metal Doors Powder Coating Line for Malaysia Customer. Powder Spraying is automatic, powder spray booth supports both automatic and manual operation, and automatically sending metal doors to the curing oven.
Based on:
1. Workshop area: 47 x 8 x 3.85m
2. Workpieces size: H2500 xW 1000mm *T150mm/W3000*H1000mm*T150mm
3. Weight of workpiece: 100kgs
Production Procedure:
1. Dipping pretreatment → 2. Drying oven → 3. Uploading → 4. Workpieces into spray booth→ 5. After spraying the workpieces will go into the curing oven(20~25min, 180~200℃)→ 6. Go out of the oven, and natural cooling→ 7. Unloading workpieces