Temperature Precision and Coating Texture of Guanding Spraying-Specific Oven

The spraying-specific oven is a key equipment for coating curing and forming. The uniformity of its temperature field and control precision directly determine the coating's adhesion, weather resistance, and surface gloss. From electrophoretic coatings for auto parts to electrostatic spraying for electronic enclosures, and sterile protective coatings for medical devices, a high-quality oven enables coatings to complete crosslinking reactions at set temperatures, avoiding defects such as pinholes and orange peel caused by improper heating. Shanghai Guanding Industrial Equipment Co., Ltd.'s spraying-specific ovens, with in-depth understanding of the characteristics of different coatings, demonstrate professional qualities in temperature curve reproduction, hot air circulation, and operational stability, making them a reliable choice in the industrial coating field.

The delicacy of temperature control is the core performance of the spraying-specific oven. Different types of coatings vary significantly in their sensitivity to curing temperatures. For example, epoxy coatings need to maintain a constant temperature of 180-200°C, while acrylic coatings require a stepped change of "low-temperature leveling - high-temperature curing". Guanding Industrial's ovens adopt multi-section independent temperature control modules, paired with evenly distributed platinum resistance sensors, which can capture temperature fluctuations in the furnace chamber in real time and adjust quickly, ensuring that the temperature in each area remains stable within the range required by the process.

The morphological characteristics of different workpieces put forward differentiated requirements for the structural design of the spraying-specific oven. For large steel structural parts (such as construction machinery covers), due to their large volume, traditional ovens are prone to "insufficient curing at edges and corners". Guanding Industrial has designed double-sided opposed air nozzles and a bottom air return structure for this purpose, allowing hot air to evenly cover the curved surface of the workpiece and solving the problem of uneven coating thickness. For small precision parts (such as electronic connectors) with a coating thickness of only a few microns, their compact ovens use low-velocity directional airflow, paired with precision mesh belt conveying, to ensure no displacement during coating drying.

Stable operation capability is the foundation for the spraying-specific oven to support production for a long time. Industrial coating workshops mostly adopt continuous production modes, and equipment failures may lead to the scrapping of entire batches of coatings. Guanding Industrial adheres to industrial-grade standards in the selection of core components: heating tubes use high-temperature resistant alloy materials, which show no oxidation or deformation after thousands of hours of high-temperature aging tests; insulation layers use high-density aluminum silicate fiber to reduce heat loss while lowering the surface temperature of the oven body; circulation fans use high-temperature resistant motors with special sealing design at bearing parts to reduce failures caused by dust intrusion.

References

1. General Technical Conditions for Industrial Electric Heating Equipment (GB/T 10067.1-2005)

2. Paints and Varnishes - Cross-Cut Test (GB/T 9286-1998)

3. Coating Engineering Handbook (Chemical Industry Press, 2018 Edition)

4. Standards for Unorganized Emission Control of Volatile Organic Compounds (GB 37822-2019)

Shanghai Guanding Industrial Equipment Co., Ltd.
Official website: www.gdoven.com
Service hotlines: 18930058003, 18916178003
Product recommendation: Spraying equipment
Tags: Shanghai spraying equipment | Spraying equipment manufacturers| Spraying equipment manufacturers