Shanxi Jianing Forging can process 304, 304L, 316, 316L stainless steel forgings, with a complete range of real-world cases of stainless steel flanges, shafts, and ring forgings, offering excellent corrosion resistance and suitable for chemical and seawater corrosion protection conditions.
A pharmaceutical equipment factory located in Shenzhen, Guangdong, specializes in the production and research and development of professional pharmaceutical machinery. To meet the requirements of sterile environments and long-term corrosion resistance, the factory has set strict technical standards for stainless steel forgings for core components. This case demonstrates how a forging enterprise (hereinafter referred to as "we") used customized processes to provide a pharmaceutical equipment factory with stainless steel forgings that comply with GMP standards.
1. Cleanliness and contamination prevention: Pharmaceutical equipment involves components that directly contact chemicals. The surface of forgings is recommended to have no dead corners or pits to prevent microbial growth, and a stable oxide film should be formed through passivation treatment.
2. Corrosion and High Temperature Resistance: Equipment is prone to intergranular corrosion or stress corrosion cracking in ordinary stainless steel after long-term contact with acidic or alkaline cleaning agents and high-temperature steam sterilization.
3. Dimensional accuracy and consistency: Forgings must seamlessly fit components such as fine valves and pump bodies, with strict tolerance requirements (e.g., ± 0.05mm), and batch production must maintain high consistency.
4. Material Certification and Traceability: Customers require each batch of forgings to be accompanied by original material reports, heat treatment records, and mechanical performance test data to meet the Drug Administration audit.
To address these pain points, we offer the following customized solutions:
1. Fine Forging Process: Uses multi-directional die forging technology to reduce subsequent machining workload, while optimizing streamlines to eliminate internal defects and increase forging density.
2. Surface Treatment and Passivation: After forging, a combined process of electrolytic polishing + pickling and passivation is used, with a surface roughness of Ra≤0.4μm, and the integrity of the passivation film is verified through the blue dot test.
3. Strict quality control: Each forging is tested with a coordinate measuring machine for key dimensions, and ultrasonic flaw detection (UT) is performed to ensure no internal cracks or inclusions.
4. Full-process traceability: Establish independent files for each batch of forgings, including raw material furnace numbers, forging parameters, heat treatment curves, and third-party testing reports (such as SGS).
With these solutions, the pharmaceutical equipment factory successfully upgraded its equipment. After two years of continuous operation, the forgings showed no corrosion or leakage issues, and subsequent orders continued to be added.
