aluminium 28 aluminum-plastic anti-theft cover for wine bottles

Packaging aluminum cap service

Anodized aluminum caps are relatively widely used. On the one hand, they are widely used in cosmetic bottle packaging, including perfume bottles, cream bottles, etc., which have a large market demand for telephone aluminum caps. On the other hand, in the bottle packaging market, many high-end health product bottles and transparent PET bottles are matched with anodized aluminum caps. This is very helpful for improving the quality of the entire health care product packaging.

The material of the aluminum cover is an aluminum alloy plate, and aluminum covers of different specifications need to be produced with aluminum alloy plates of different specifications. According to whether the aluminum alloy plate is coated or not, the aluminum cover is divided into three types: ordinary aluminum cover, single-coated aluminum cover and double-coated aluminum cover. Because the mold is divided into a stretching mold and a ring cutting mold, the lid made will be divided into stretching and ring cutting.

The sealing principle of the aluminum cover

According to the sealing principle of aluminum cap bottle cap, it can be divided into flat pressure seal and side wall seal. The flat pressure seal can only be used in the screw cap. When it is tightened, the contact surface between the bottle mouth plane and the inner plane of the bottle cap increases, so as to achieve the sealing effect.
The side wall seal is to use the effective contact between the memory of the bottle mouth and the outside of the bottle cap sealing system to achieve the sealing effect. The screw cap with side wall sealing system should be the scheme of ordinary corrugated cap. For injection glass caps are often metal caps combined with rubber stoppers, which need to be designed and selected according to the structure, use and price of the product.
In the case of specifying the specifications of the aluminum cap, salt water bottles of different calibers should be selected, and a suitable bottle cap should be selected. The shape of the aluminum cap is generally flat, and the shape after pressing depends on the capping mold of the capping machine. If the mother and child and the flat top are sealed into an aluminum cap and flat top, they will often not be tightly attached to the bottle stopper, and loosening will easily occur.