How to judge the quality of medicinal aluminum plastic combination cover
Medicinal aluminum plastic composite cover is mainly used in medical, chemical packaging and other industries. Different industries have different requirements for medicinal aluminum plastic composite cover.
Medicinal aluminum plastic composite cover is mainly used in medical, chemical packaging and other industries. Different industries have different requirements for medicinal aluminum plastic composite cover. In order to make you more understand medicinal aluminum plastic composite cover, today let us look at how to judge the quality of medicinal aluminum plastic composite cover through the appearance.
1. Check the riveting point. The riveting point should be the same size, the table should be smooth, uniform thickness, no burring around, and the color is consistent with the color of the plastic cover itself. The diameter of the riveting point should be 1-1.5mm larger than the diameter of the riveting hole of the aluminum cover (the length of the flanging side of the flanging side of the flanging type medicinal aluminum plastic combination cover is 1-1.5mm). The automatic molding machine of the medicinal aluminum plastic combination cover can all meet the above requirements. And manual riveting will appear uneven and uneven, the periphery is not round, drawing, burr and other phenomena, especially with manual electric heating tools for riveting, the temperature cannot be controlled, resulting in uneven heat riveting material, change color, and even burnt point.
2. Check the gap. Check the gap between the plastic cap and the aluminum cap. The bottle cap riveted with mechanical equipment is formed by heating and pressurizing, and the plastic cap and the aluminum cap are closely echo together without gap. And manual riveting can not add pressure, resulting in a large gap between the aluminum cover and the plastic cover, can shake up and down.
3. Check whether the aluminum cover is deformed, whether the edge of the aluminum cover is neat, whether the height of the aluminum cover meets the packaging requirements and table and oxidation treatment (or coating treatment), etc. The roundness of the aluminum cap directly affects the normal operation of the capping machine. The clearance between the inner diameter of the aluminum cap and the outer diameter of the bottle mouth should not be too large, otherwise there will be wrinkles in the sealing.
1. Check the riveting point. The riveting point should be the same size, the table should be smooth, uniform thickness, no burring around, and the color is consistent with the color of the plastic cover itself. The diameter of the riveting point should be 1-1.5mm larger than the diameter of the riveting hole of the aluminum cover (the length of the flanging side of the flanging side of the flanging type medicinal aluminum plastic combination cover is 1-1.5mm). The automatic molding machine of the medicinal aluminum plastic combination cover can all meet the above requirements. And manual riveting will appear uneven and uneven, the periphery is not round, drawing, burr and other phenomena, especially with manual electric heating tools for riveting, the temperature cannot be controlled, resulting in uneven heat riveting material, change color, and even burnt point.
2. Check the gap. Check the gap between the plastic cap and the aluminum cap. The bottle cap riveted with mechanical equipment is formed by heating and pressurizing, and the plastic cap and the aluminum cap are closely echo together without gap. And manual riveting can not add pressure, resulting in a large gap between the aluminum cover and the plastic cover, can shake up and down.
3. Check whether the aluminum cover is deformed, whether the edge of the aluminum cover is neat, whether the height of the aluminum cover meets the packaging requirements and table and oxidation treatment (or coating treatment), etc. The roundness of the aluminum cap directly affects the normal operation of the capping machine. The clearance between the inner diameter of the aluminum cap and the outer diameter of the bottle mouth should not be too large, otherwise there will be wrinkles in the sealing.
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