Comprehensive cleaning procedures
General cleaning and weld passivation
Aero-Flex Corp.’s hydroforming method of corrugated hose manufacturing creates a naturally clean product. However, for sophisticated or regulated applications like those in the BioPharm industry, we can perform specialized cleanings such as “clean and degrease,” CGA G-4.1, and full ultrasonic cleaning.
All metal manufacturing uses a big array of lubricants. However, grease and oil can trap dirt and other contaminants that can negatively affect final product cleanliness for future welding. To divest every fitting and piece of pipe before they make it to the welding booth, manually clean them after the initial cut and prep and after the assembly is welded. This ensures your equipment will perform at maximum efficiency.
For all welded joints, Aero-Flex Corp. adheres to a rigorous multi-step cleaning and passivation process. When you weld stainless steel, the heat causes the material’s residual carbon to rise to the surface. These carbon deposits can eventually cause rust on your welds, especially in the heat-affected zones. To prevent this future damage, Aero-Flex Corp. applies two separate acid washes to the weld zone, effectively “pickling” the joint. This eliminates the carbon deposits and the chance of post-weld rust.
The last stage involves a caustic dip to neutralize acids. Upon completing this passivation process, we manually buff the stainless steel welds for better appearance and performance. As with any of our processes, Aero-Flex Corp. will clean to your most exacting standards, and if necessary, supply third-party cleaning and passivation certification to ASTM A380.
This process cleans any equipment or system of combustible contaminants including — but not limited to — sand, dirt, grease, oil, fiber, paper, solvents, coal dust, weld slag, and rust. If not carefully removed, you risk product purity or a combustion reaction in an oxygen atmosphere. Aero-Flex Corp. oxygen cleaning can be third-party certified to ASTM G93, G4.4, or any other national or international quality control standard. Call 561-745-2534 to discuss the specifics.