The composite plastic profile of medical aluminum cover shall be made of raw materials that are non-toxic, acid and alkali resistant, moisture resistant, excellent corrosion resistance and sunlight resistance, do not deform and fade after 120 ° high temperature steam disinfection for 30 minutes (or 130 ° high temperature steam disinfection for five minutes), and have excellent secondary hot melting characteristics. Generally, polypropylene is used. The aluminum alloy material shall be used for the combination of medical aluminum cover. After the stamping die is formed, it must be cleaned to remove the grease and dust coated on the aluminum profile in the whole process of the stamping die.
After entering the cleaning room and in the whole process of the combination and forming of the medical aluminum cover, the part of the production line equipment that is in direct contact with the aluminum cover or plastic cover shall be made of stainless steel plate that is easy to clean, non-toxic and zero pollution. In the whole process of stamping die, if single step or scratch type is selected, the size of single step and the depth of scratch shall be checked to ensure the stability of tearing force.
In the whole process of anodic oxidation treatment and processing technology, it should be noted that if the solution time of pickling and passivation of aluminum cover is too long, the thickness of aluminum plastic cover of medicinal value will become soft, the compressive strength will be reduced, and it can not be applied. According to the above processing technology, the medical medicinal aluminum cap combination is produced and formed. When entering the pharmaceutical factory to encapsulate the bottle stopper, it generally does not need to be cleaned. If disinfection and sterilization are carried out The processing technology that does not clean the stamping die of the aluminum cover after forming, and then clean it after it is combined with the plastic cover, or transfer it to the pharmaceutical factory for cleaning is inappropriate. Because the aluminum cover and the plastic cover are firmly pressed together, it is impossible to clean and tidy. In addition, there will be water or stains between the plastic cover and the aluminum cover. It is not easy to volatilize and clean after being impatient, and there will be stains after being impatient.