Plastic profiles 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 being sterilized by 120 ℃ high-temperature steam for 30 minutes (or 130 ℃ high-temperature steam for five minutes), and have excellent secondary hot-melt characteristics. Polypropylene is generally used. The medical aluminum cover should be made of aluminum alloy. 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 being cleaned and transported to the medical anode cover by the manufacturer, it is also cleaned according to the water.
When the medical aluminum cover is formed by plastic machine, the temperature is high. Generally, it does not need to be cleaned. It is immediately entered into the cleaning room according to the transportation organization. The emphasis here is on the cleaned aluminum cover and plastic cover of injection molding process. From entering the cleaning room to entering the packing wooden box after forming, you can't touch it with force in the whole process to prevent environmental pollution. After the cleaned medical aluminum cover enters the cleaning room and in the whole process of forming the medical aluminum cover, the part of the production line equipment in direct contact with the aluminum cover or plastic cover shall be made of stainless steel plate which is easy to clean, non-toxic and zero pollution. In the whole process of stamping die for medical aluminum cover, if the interruption point type or scribed line type is selected, the size of the interruption point and the depth of the scribed line shall be checked to ensure the stability of tearing force.