We have very good corrosion resistance

In the modern food packaging industry, plastic food container moulds occupy an important position due to their high efficiency, convenience, and environmental protection, and their corrosion resistance is an important attribute that determines the service life, production efficiency, and food safety of the molds. The corrosion resistance of food container moulds, a special type of mold, largely determines the quality and hygienic status of the final plastic food containers.

Plastic food container moulds, as a key link in the food packaging industry chain, are mainly responsible for producing various disposable or reusable food containers through injection molding processes, such as crisper boxes, snack boxes, beverage bottles, etc. In view of its direct contact with food, the corrosion resistance of the mold is crucial. Once the mold is corroded, it will not only lead to reduced mold accuracy and defects in the produced products, but may also cause harmful substances to migrate into the food, seriously threatening the health and safety of consumers.

To ensure that plastic food container moulds have excellent corrosion resistance, we must start with the selection of raw materials. Under normal circumstances, the selection of mold steel is very important to ensure that the mold will not be easily corroded even in a humid production environment. In addition, pre-hardened mold steel, through specific alloy composition design and heat treatment process, can also show excellent corrosion resistance and is suitable for making high-quality food container moulds.

In addition to the selection of basic materials, optimizing mold surface treatment technology is also an important way to improve corrosion resistance. For example, through surface modification technologies such as chromium plating, ion nitriding, and PVD coating, a dense, hard and corrosion-resistant protective layer can be formed on the surface of the mold, which can effectively resist the erosion of various acid and alkali corrosive media and extend the use of the mold. life.

During the mold design stage, fully consider its structural characteristics and working environment, and rationally arrange cooling water channels and slag discharge channels to prevent local corrosion caused by water accumulation, dust accumulation, etc., while ensuring the surface finish of the mold and reducing the adsorption of corrosion sources. During the use and maintenance of the mold, establishing a complete cleaning and maintenance system, regular inspections, timely removal of residues on the mold surface, and the use of special anti-rust agents for protection will also play a positive role in extending the corrosion resistance life of the mold.

To sum up, the corrosion resistance of plastic food container moulds is an important criterion for measuring mold quality, ensuring food safety and corporate economic benefits. By continuously developing new materials, improving manufacturing processes, optimizing designs and strengthening daily maintenance, my country's food container mould industry is gradually improving the corrosion resistance of molds, thereby promoting the sustainable and healthy development of the entire food packaging industry. In the future, the research, development and application of corrosion-resistant technology in the field of food container moulds will surely become a highlight of industry development and help my country's food packaging industry move to a higher level.