In recent years, with the advancement of the "dual carbon" goals and the tightening of environmental protection policies, traditional manufacturing is facing unprecedented transformation pressure. As a service provider that has been deeply involved in the sheet metal processing field for many years, we are well aware that environmental compliance is not only a policy requirement, but also a necessary path for the sustainable development of enterprises. This article will focus on the practice of green production processes and analyze how environmental transformation can create long-term value for the industry.

Sheet metal processing environmental compliance requirements: systematic management from waste gas to wastewater

In the traditional precision sheet metal manufacturing process, electroplating, welding, spraying and other links are prone to produce waste gas, wastewater and solid waste. According to the "Air Pollution Prevention and Control Law" and the "Regulations on Pollution Discharge Permit Management", enterprises need to focus on solving two major problems:

• Waste gas treatment: welding fumes and spraying volatile organic compounds (VOCs) need to be discharged through dust removal equipment (such as cartridge purifiers) and catalytic combustion devices to meet the emission standards;
• Wastewater recovery: heavy metal-containing wastewater generated by cleaning, passivation and other processes needs to be recycled using membrane separation technology to prevent direct discharge.

The company's green production initiatives: technology upgrade and circular economy

In response to environmental protection policies, we started from two aspects: process innovation and resource utilization:

• Powder spraying instead of electroplating: Traditional electroplating processes require the use of highly polluting raw materials such as cyanide, while electrostatic powder spraying technology not only achieves zero heavy metal emissions, but also improves the corrosion resistance of the coating by 30%;
• Waste recycling system: After classification, the metal scraps produced by laser cutting are handed over to the cooperative steel mill for remelting and regeneration, with an annual recycling rate of 92%;
• Energy structure optimization: Introducing photovoltaic power generation systems to provide 30% of clean energy for laser sheet metal processing equipment.

Environmentally friendly material recommendation: Reduce pollution risks from the source

Material selection is the first checkpoint in green production. We have launched environmentally friendly alternatives to meet the needs of different industries:

• Degradable anti-rust oil: used for medical parts processing, the biodegradation rate of the device shell exceeds 90%, avoiding the contamination of the sterilization process by traditional oils;
• Chromium-free passivation agent: replaces chromium-containing chemicals to treat the surface of stainless steel, eliminates the risk of hexavalent chromium carcinogenesis, and meets the FDA certification standards for medical device parts processing;
• Aqueous degreasing agent: pH neutral preparations are used in the cleaning process, reducing wastewater treatment costs by 40%.

Green manufacturing, the future is here

Driven by environmental protection policies and market demand, the sheet metal chassis processing industry is transforming from "high energy consumption" to "high technology, high value". We have established a complete green chain from materials, processes to recycling, helping customers seize market opportunities through environmental protection upgrades.