How many kinds of sealing ways are there in aluminum lid?
Pressed into the bottle stopper, by its own elastic deformation method composed of bottle tightly sealed, known as pressure sealing plug (Fig. 11-1c) made of cork. Cork, commonly used rubber and plastic material that has certain elasticity, its structure and shapes, figure 11-2 shows the common shape.The sealing of the bottle stopper can be used as a direct seal or a combined sealing with the bottle cap. In order to improve product sealing and prolong shelf life. Direct sealing is used for sealing liquid foods such as bottled soy sauce, vinegar and so on. Combination sealing is often used in sealing bottled high grade wine, medicine and poisonous products.
The seal formed by the joint of the crown around the crown of the crown and the rim of the bottle is called gland sealing (as shown in figure 11-lb). The seal between the end cap and the bottle liner made of rubber or cork elastic sealing gasket sealing gland sealing. The sealing is reliable, easy unsealing, is containing carbonated drink liquid - beer, soda and wine bottle of glass container packaging common seal form.
A seal formed from the sides of the tank lid and the flange of the tank body is formed by a mutually twisted hook, called a curling seal (as shown in figure 11-1a). Sealed cylindrical cans are widely used in canned food and beverage packaging. In order to make the sealing of the joint part does not leak, usually in the lid put 1 concave edge glue (or rubber compounding material, roll edge tree T) after the clip in the seam to improve air tightness.
