Before rust-proofing the workpiece, the workpiece must be cleaned. Cleaning is the guarantee of anti-rust quality. Only when anti-rust treatment is carried out on a clean and non-polluted surface can the expected results be achieved.
Cleaning is an important process in mechanical processing. In the production process, the parts need to be cleaned before assembly, before electroplating, before painting, and before and after heat treatment of the workpiece.
Before rust-proof packaging, strict cleaning is required to achieve the cleanliness required by the process. Otherwise, it will affect the performance, quality, reliability, and service life of the product, and bring hidden dangers to users.
In the production process, the dirt attached to the metal surface is mainly: metal shavings, abrasives, cutting fluid, and various greases, as well as electrolytes such as dust, moisture, acids, alkalis, salts, and hand sweat. For different contaminants, different cleaning agents and cleaning processes should be selected. Especially for the highly sophisticated products in the aerospace, electronics industry, precision flanges, auto parts, and other fields, the corresponding cleaning agent and cleaning process should be selected according to their special requirements.
After the product is completed, it is exported to the sea. Due to the long transportation time and weather changes, metal parts need rust protection. VCI gas-phase anti-rust bags and VCI gas-phase anti-rust paper are better choices.
