1. Policy-driven industrial upgrading

Zhejiang Province recently issued the "Implementation Opinions on Promoting the Green Development of the Surface Treatment Industry", which clearly proposed to support electrogalvanizing enterprises to transform towards intelligence and low pollution. The head of a leading electrogalvanizing enterprise in Ningbo said: "The new regulations require that the wastewater discharge standard be raised to Class A of the national level, forcing enterprises to invest in new wastewater treatment equipment." Some manufacturers in Cixi have reduced energy consumption costs by more than 30% by introducing photovoltaic power generation systems, becoming a regional demonstration case.

2. Technological innovation: from traditional technology to intelligent manufacturing

Ningbo electrogalvanizing technology breakthrough

A Ningbo electrogalvanizing plant has jointly developed "nano-composite coating technology" with Zhejiang University, which has increased the corrosion resistance of the zinc layer by 50%. It has been successfully applied to the manufacture of battery shells for new energy vehicles, filling the gap in domestic high-end galvanized products.

Collaborative innovation of the Cixi industrial chain

The Cixi electrogalvanizing industry cluster has promoted the popularization of the "cyanide-free zinc plating process" through a shared R&D center, reducing the use of highly toxic chemicals by 90%, and at the same time jointly developed a "galvanizing-spraying integrated" production line with downstream hardware companies to shorten the delivery cycle by 40%.

3. Environmental transformation: from passive governance to active emission reduction

Electrogalvanizing enterprises in Ningbo and Cixi actively responded to the "dual carbon" goals, for example:

Circular economy model: A company refines waste acid into industrial-grade sulfuric acid, with an annual recycling volume of more than 5,000 tons;

Digital monitoring: Install IoT sensors to monitor pollutant emissions in real time, and the data is directly connected to the environmental protection department platform;

Green certification: 12 local companies have passed ISO 14064 greenhouse gas verification and obtained international order priority.

4. Regional collaboration: Create the Yangtze River Delta electrogalvanizing industry belt

Ningbo and Cixi rely on their location advantages to form a complementary chain of "R&D-production-service". For example:

Ningbo focuses on high-end equipment galvanizing, serving heavy industries such as port machinery and aerospace components;

Cixi is deeply involved in the fields of home appliances and small hardware, and its annual supply accounts for 18% of the national market;

Cross-regional cooperation: The two places jointly established the "Electrogalvanizing Industry Alliance" to share environmental protection technology patents and supply chain resources.

Experts’ opinions

Experts from the China Surface Engineering Association pointed out: “The transformation of the electrogalvanizing industry in the Yangtze River Delta has provided a model of “technology + environmental protection” dual-wheel drive for the same industry across the country. In the future, it is necessary to further promote the deep integration of production, learning and research to break the bottleneck of high-end galvanizing materials relying on imports.”