intelligent spraying robot
Contact Info
- Add:No. 3099 Chang'an Road, East Taihu Ecological Tourism Resort (Taihu New Town), Zip: 215200
- Contact: 何彦武
- Tel:13157670256
- Email:jiersrobot@163.com
Other Products
Spraying Process Requirements for JERRYS Intelligent Robot Imported Spray Guns
JERRYS ROBOT
1. If the workpiece has no rust and does not require pickling, silane treatment can be adopted, which is more environmentally friendly compared with phosphating.
2. If the requirement for salt spray resistance time is not very strict, the simple four-in-one treatment method can also be used, which has lower cost.
3. However, regardless of the treatment method, the powder coating base layer must be free of oil and rust. All specific processes depend on the quality of the incoming workpiece. If the workpiece is in poor quality with heavy oil and heavy rust, the traditional degreasing - water washing - pickling - water washing - water washing - surface conditioning - phosphating treatment is still required.
Compared with traditional painting processes, electrostatic powder coating has significant advantages: no need for diluents, no environmental pollution from construction, no harm to human body; excellent coating appearance quality, strong adhesion and mechanical strength; short curing time for spraying construction; much higher corrosion and wear resistance of the coating; no need for primer; simple construction, low requirements for workers' skills; lower cost than painting process; some construction occasions clearly require the use of electrostatic powder coating process; the common sag phenomenon in the painting process will not occur in the electrostatic powder spraying process.
The basic principles are as follows:
1. A high-voltage corona discharge electric field is formed between the spray gun and the workpiece. When the powder particles are ejected from the spray gun and pass through the discharge area, they capture a large number of electrons and become negatively charged particles, which are adsorbed onto the positively charged workpiece under the action of electrostatic attraction.
2. When the powder adheres to a certain thickness, the "like charges repel" effect occurs, and no more powder can be adsorbed, thus ensuring uniform thickness of the powder layer in each part. Then, after heating, baking and curing, the powder layer flows and levels into a uniform film.
The quality of the pre-treatment process directly affects the quality of the powder coating. Poor pre-treatment will cause the coating to easily peel off, blister, and other phenomena. Therefore, great importance must be attached to the pre-treatment work.
For sheet metal stamping parts, chemical pre-treatment can be adopted, namely: degreasing → derusting → cleaning → phosphating (or passivation), etc. For most workpieces with heavy rust or thick surfaces, mechanical methods such as sand blasting and shot blasting are used for derusting. However, after mechanical derusting, the workpiece surface must be ensured to be clean and free of dirt.
Putty scraping. Apply and scrape conductive putty according to the defect degree of the workpiece. After drying, grind it smooth with sandpaper, and then proceed to the next process.
Protection (also called masking). If some parts of the workpiece do not require a coating, they can be covered with protective glue before preheating to avoid being sprayed with coating material.
Preheating. Generally, preheating is not required. If a thicker coating is required, the workpiece can be preheated to 100～160℃, which can increase the coating thickness.
| Industry Category | Machinery & Equipment/Coating & Painting Equipment/Spray Coating Machines |
|---|---|
| Product Category | |
| Brand: | 杰瑞斯智能机器人 |
| Spec: | JRS-3500 |
| Stock: | 1 |
| Manufacturer: | jerrys robot |
| Origin: | 113205 |
