tinplate easy open lid

The tinplate easy open lid itself has several difficulties: after the engraving and riveting of the pull ring, it must be easy to open and withstand high-pressure sterilization; the coating film on the inner surface of the tank must be resistant to corrosion by the contents; The engraved line cannot rust after being sterilized by high temperature. So how to solve these difficulties?

1. Easy open end manufacturers HONGBO company use imported large-tonnage punching machines (such as MINSTER), excellent molds (such as STI, DRT), quality control management of the production process, and the quality of internal and external coatings.
2. The empty can factories and canning factories that are used in conjunction with it pay enough attention to the easy open end, so as to reduce the damage to the easy open end in the final link.
3. When the empty and solid tank factory seals the easy-open lid, the sealing head must be specially made according to the size of the lid type of the manufacturer (or brand) you purchased. Never use the pressure head for sealing the ordinary bottom cap to seal the easy-open cover or use an indenter from other manufacturers (or grades), which may cause the indenter to flatten and deform the easy-open end, causing cracks and rust in the recoating fluid for the outer engraved line, and in severe cases, the tip of the pull ring will be damaged. Top to the score line, leaking cans that break the scoring line during high-temperature sterilization or chronic leaky tanks in the future.
4. When sterilizing the easy-open cans of the real can factory, attention should be paid to the degree of vacuum. Because the compressive strength of the easy-open end is smaller than that of the ordinary bottom cover (the compressive strength of the easy-open end is generally ≥ 2kg, and the compressive strength of the bottom cover is generally > 4kg), if there is a problem with the vacuum degree, it may cause sterilization during pressurization. , the surface of the easy-open lid is deformed first, and the can explodes.
5. Vertical sealing machine uncapping device
Since the easy-open end has a pull ring on the cover surface, when using some sealing machines with a cap-removing head device, the cap-removing head will hit the pull ring, causing the pull ring to sink, and in severe cases, the engraved line of the easy-open end will be damaged. The capping device should be modified to reduce the outer diameter of the capping head so that the capping head does not touch the pull ring, or install a buffer device on the capping head to reduce the impact force of the capping head on the pull ring.
6. After sterilization, the real can factory should do a good job of wiping and drying the surface of the easy-open end to reduce the impact of water stains on the appearance of the easy-open end.
7. When the empty and solid can factories choose to buy easy-open ends, they must first choose what kind of paint to use for the inner coating of the easy-open ends according to the contents of their cans.