In modern manufacturing, alkaline galvanizing technology is widely used due to its good corrosion protection and environmental friendliness. However, the brittleness of the plating layer may negatively affect the service life and quality of the product, so methods for detecting the brittleness of the plating layer are of particular importance. In this paper, we will introduce several commonly used methods for detecting the brittleness of alkaline galvanized coatings when alkaline galvanizing additives are used.
1. Bending test
Bending test is a common and simple test method. The process involves fixing a galvanized sample on a bending device, gradually bending it to a certain angle, and observing whether the plating cracks or flakes off. This method can visually determine the flexibility and adhesion of the plating. The bending test is considered an effective method for evaluating the brittleness of plating and is widely used in both laboratory and production environments.
2. Cold test
The cold test, also known as the thermal shock test, is used to determine the brittleness of a galvanized sample by rapidly cooling it from a high temperature to a low temperature and observing whether the coating cracks or peels off. The quench test simulates the effect of a rapid change in temperature on the coating in an actual environment. The quench test is particularly suitable for testing the brittleness of parts under high stress conditions.
Choosing the right galvanizing additive is essential to ensure the quality and reliability of the coating. Bigely BZ-515 alkaline galvanizing additive is a good choice. Suitable for cyanide-free alkaline zinc processes, this additive produces a bright, low-brittleness coating that is evenly distributed in the high and low zones. The use of BZ-515 improves the brittleness resistance of the coating and ensures a stable product.
Why choose Bigely Technology?
Guangdong Bigely Technology Co., Ltd. ,founded in 2003, is a high-tech enterprise integrating R & D，production, sales and service, specializing in the production of electroplating additives. As a famous electroplating additives manufacturer in China, Bigely has over 20 years' experience in electroplating additives production and own production base of 5000 square meters. We can produce 15,000 tons of electroplating additives every year, which can fully meet the needs of customers.
Our products are widely used to meet the plating needs of different industries and exported to many countries from all over the world. They can meet the environmental protection standard after use, mainly used in automobile parts, sanitary ware, electronic products, hardware, furniture, building accessories and other fields.
If you need our high-quality electroplating additives, please contact us. We can provide you samples to you for test, and also provide a series of services.
