HC Aluminum Pharmaceutical Aluminum Foil Production Process
In daily life, the application of pharmaceutical aluminum foil is widespread and mature. The main uses of pharmaceutical foil include blister packaging for capsules and tablets, as well as bag packaging for powders and liquids. Since it comes into direct contact with consumable medicines, HC Aluminum has very strict requirements for the appearance and performance of pharmaceutical foil.
HC Aluminum Pharmaceutical Aluminum Foil Supplier
HC Aluminum is a professional pharmaceutical aluminum foil supplier. The best-selling pharmaceutical foils are of two types: 8011 aluminum foil and 8021 aluminum foil, where the 8011 alloy generally has a thickness of less than 0.05mm, while the 8021 alloy has a thickness greater than 0.05mm.
Pharmaceutical Aluminum Foil Production Process
The main production process at HC Aluminum includes: raw material inspection - initial rolling - intermediate rolling - final rolling - product forming - slitting - annealing - finished product packaging. The surface of pharmaceutical aluminum foil must be free from oil stains, bright spots, black lines, pinholes, yellow spots, and scalloped edges. In the production process, the control of surface and performance primarily involves the following points:
1. Raw Material Control
Raw Material Inspection: High-purity aluminum alloys are selected as raw materials to ensure no impurities or defects. Strict chemical composition analysis and physical performance testing are conducted to ensure the raw materials meet standards.
2. Rolling Process
Roller Cleaning: Before rolling, the rollers must be thoroughly cleaned to remove any residual contaminants and aluminum chips, which effectively prevents adverse effects on the surface quality of the aluminum foil during rolling.
Roller Roughness Control: The surface roughness of the rollers directly affects the surface smoothness of the aluminum foil. Appropriate abrasives and processes are used to treat the rollers, maintaining their smoothness.
Rolling Oil Selection: Suitable rolling oil is selected to reduce viscosity, minimize friction, and improve surface quality. The choice of rolling oil also considers the subsequent processing and safety of the pharmaceutical aluminum foil.
Machine Speed Control: Proper adjustment of the machine speed ensures uniform thickness and smooth surface of the aluminum foil during the rolling process, preventing surface defects.
3. Slitting Process
Slitting Quality Control: During the slitting process, it is essential to ensure the edges of the aluminum coil are neat to avoid scalloped edges or other irregular shapes. High-precision cutting equipment is used, with regular calibration of the blades to maintain cutting accuracy.
4. Annealing Process
Annealing Time and Temperature Control: The time and temperature of annealing are strictly controlled according to the performance requirements of the pharmaceutical aluminum foil. Proper annealing can eliminate internal stresses from the rolling process, improving the ductility and surface smoothness of the foil.
De-oiling Treatment: After annealing, the surface of the aluminum foil must be thoroughly de-oiled to prevent any oil residue from affecting subsequent applications. This can be achieved through pickling or cleaning processes.
5. Final Inspection
Surface Quality Inspection: After production, comprehensive surface quality checks are conducted to look for scratches, dents, stains, and other defects.
Performance Testing: The pharmaceutical aluminum foil undergoes performance testing, including thickness, strength, ductility, and hygiene indicators, to ensure it meets the requirements for pharmaceutical packaging.
