The main purpose of constructing an environmentally friendly surface treatment industrial park is:

The main purpose of constructing an environmentally friendly surface treatment industrial park is:

Dalian metal surface treatment, cadmium coating has good corrosion resistance, especially in marine atmospheric environments, with better corrosion resistance than other surface treatments. The waste liquid treatment cost in the process of electroplating cadmium is high, so it is not used in general industries and is only used in certain specific environments, such as fasteners for oil drilling platforms and Hainan Airlines aircraft.

Hot dip galvanizing is the process of heating zinc to a liquid for thermal diffusion coating. Its coating thickness is between 15-100 μ m and difficult to control, but it has good corrosion resistance and is commonly used in engineering. During the hot-dip galvanizing process, there is severe pollution, including zinc waste and zinc vapor. Due to the thick coating, there is a problem of difficulty in screwing the internal and external threads in the fasteners. The coating formed on the metal surface by alloy catalytic film-forming technology is an amorphous alloy layer. It has good uniformity, and a uniform layer can be obtained in both threads and blind holes; The thickness of the coating can be controlled according to the immersion time, and it has a wide range of applications.

Its bonding strength and anti-corrosion performance with the substrate are relatively good in zinc coatings (electroplated zinc, hot-dip zinc, Dacromet). Its processing is pollution-free and more environmentally friendly. The foundry industry is a major energy consumer in the machinery industry, accounting for about 45% of the total energy consumption in the machinery industry. The workpieces processed by traditional electroplating technology often have many pores, are prone to peeling and pitting, resulting in uneven surface, large cleaning workload, large processing allowance, and low qualification rate. This seriously reduces production efficiency and leads to a high scrap rate.

According to the main purpose of building an environmentally friendly surface treatment industrial park, on the one hand, local existing enterprises will be relocated to the park to eliminate scattered pollution sources; Introduce environmentally friendly surface treatment technology to improve the level of clean production technology in enterprises; On the other hand, building nests and attracting phoenixes can attract foreign capital and advanced environmental protection technologies. At present, the difficulty of enterprises entering the park is the main problem in the construction of the park. To improve the market environment around the pain points and shortcomings of the development of small and medium-sized metal surface treatment enterprises, difficult and expensive financing is a problem, and there is also the issue of property rights protection. It is crucial to protect small and medium-sized investors, especially small and medium-sized enterprises.

Small and medium-sized enterprises must form their own unique brand, and this new core competitiveness is actually the protection of intellectual property rights. Based on the average utilization level of scrap steel abroad, China may require approximately 300 million tons of scrap steel per year. And currently we only have a production volume of over 100 million tons but less than 200 million tons, so digestion is absolutely not a problem. Just last year, due to the short period of ban on strip steel, some companies were unable to find buyers for scrap steel in the short term, so they began exporting overseas.