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The working voltage, breakdown voltage, and critical voltage of ED coating

The working voltage, breakdown voltage, and critical voltage of ED coating

In the field of ED coating, the working voltage (or coating voltage) of ED coating is the voltage applied between the two poles to achieve excellent paint film appearance and specified paint film thickness. The painting voltage has a certain range. When it exceeds the upper limit of the painting voltage, the reaction on the electrode intensifies, producing a large amount of gas, causing the deposited paint film to explode, break down, and produce abnormal adhesion. This voltage value is called the breakdown voltage.
On the contrary, when the voltage value is lower than the lower limit of the working voltage, almost no paint film can be deposited (or the deposition and re dissolution of the paint film are offset), and this voltage value is called the critical voltage. The working voltage of electrophoresis is between the critical voltage and the breakdown voltage.
Working voltage is one of the important process parameters for ED coating. Under the premise of keeping other  coating conditions constant, the thickness of the  coating film and the penetration force are directly proportional to the coating voltage. During the production process, adjusting the coating voltage is often used to control the thickness of the coating film.

dgkede
2025-12-08
Temperature control system of ED caoting

Temperature control system of ED caoting

In the electrophoresis process, the temperature of the bath solution will increase due to factors such as electrification, circulation of the bath pump, entry of heated workpieces (if using a drying furnace), and construction environment. The suitable working temperature for electrophoresis bath solution is 28 ± 2 ℃. Temperature deviation can affect the thickness and appearance of the coating, causing surface defects.

When the temperature is too low, the film thickness will decrease and the surface will become rough; When the temperature is too high, the paint thickness will increase, the paint film will be unstable, there will be surface defects, and it may also cause damage to the ultrafiltration device.

The temperature of the circulating electrophoresis tank solution is controlled through a stainless steel heat exchanger, which uses 7 ℃~15 ℃ water to cool or 30 ℃~45 ℃ water to heat the tank solution.

dgkede
2025-12-05
(KODEST)Electrophoretic coating equipment - curing system

(KODEST)Electrophoretic coating equipment - curing system

Gas direct heating curing furnace is a common type of electrophoretic curing furnace. This kind of curing oven has the ability to cure all depressions, plus its operating cost is only more cost-effective as well. Occasionally, the radiation zone is also set on the entrance of the curing oven, and the wind speeds in this area are lower, enabling less dust in the air to distort and lower the toxicity of the coating at the surface after curing, allowing it to be less easily polluted by pollutants.
A heating channel is sometimes also established as a dehydration zone. The temperature of the workpiece is 60 ℃~70 ℃, and heated 2-3 minutes, the entrance of the curing furnace is the dehydration zone.
dgkede
2025-12-04
High Sharp Edge Ultimate Corrosion Resistance

High Sharp Edge Ultimate Corrosion Resistance

High Sharp Edge Ultimate Corrosion Resistance is the latest generation of material science, providing the performance characteristics of the ultimate in high-strength, high-durability materials at the leading edge of damage performance and longevity in some of the most demanding environments and challenges of the next generation. Really, now picture tools that never lose an edge, components that could endure decades of relentless wear, and structures that could resist rust and decay forever. That is the potential this seismic technology unlocked. Phenomenal Edge Retention
High Sharp Edge — This means that the material will hold an edge for a long period of time. This is done via a distinctive microstructural lattice that increases edge retention when compared to legacy materials. This means major savings, as you replace less often and operate more efficiently.
Ultimate Corrosion Resistance
An ultimate feature that defines something as \"Ultimate Corrosion Resistance\". Newer alloys and surface treatment create an impenetrable barrier to oxidation and degradation, even when subjected to aggressive environments such as saltwater or highly acidic solutions. Which then could lead to whole new opportunity for use for marine environments, chemical processing and other extreme industries.
Versatile Applications
Having such characteristics, it can be used in many sectors. From surgical tools requiring sterility and precision to aerospace parts requiring extreme strength and reliability, and we\'ve just scratched the surface. To enable lightweight, high-performance applications, This also gives it an incredibly high strength-to-weight ratio.
High Sharp Edge Ultimate Corrosion Resistance marks a major advancement in materials technology, solves many decades-old challenges facing durability and longevity in multiple industries.
dgkede
2025-12-02

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