What is the difference between ordinary tin cans and welded tin cans?

Today Xiaobian received a customer service response, some customers asked if they could use the ordinary iron cans made by our factory to hold drinks or oil or milk powder. The customer service will immediately make it clear to the customer that the ordinary iron cans we make cannot be directly loaded with liquid and powder. The ordinary iron cans we say are miscellaneous cans, and the iron cans that can hold liquid and powder are processed by special production processes, such as welded iron cans. What's the difference between a regular tin can and a welded tin can?

First, the sealing of ordinary iron cans and welded iron cans is different

Milk powder cans, oil cans and beverage cans These iron cans have very high requirements for sealing. It is usually a can or welded iron can, and its connection is made by the can body through the deep drawing or welding process, and its sealing is good. Ordinary iron cans, also known as mixed cans, can body connection is processed by stamping bone process, so the tightness is poor, not only that, liquid and powder directly into the leakage will occur, and direct loading of powder over a period of time will also appear damp deterioration.

Second, the production environment of ordinary iron cans and welded iron cans is different

Since the beverages, oils and powders are directly loaded into the jar, the production environment needs to be very clean, and there needs to be disinfection equipment and a dust-free workshop, so as to meet the safe production requirements of food in direct contact with tinplate cans. The production environment of ordinary tinplate tin cans is relatively simple, and the produced tin cans are only simple to wipe, and cannot reach the food safety level of direct tin cans.