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Each tinplate aerosol can has its own tare weight, or empty can weight. After the can is filled with contents and propellant, its weight increases significantly. With use, the weight gradually decreases. When the weight approaches the empty can tare weight, the contents are nearly depleted.

• At room temperature, the pressure inside an aerosol can typically range from 2 to 8 atmospheres. • Once the temperature rises above 40°C, the internal pressure increases significantly, exceeding the design pressure limit of the can material and causing a rupture.

Storage conditions for aerosol can products: 1. Storage temperature 2. Ventilation of the storage space 3. Prevent physical damage to the can 4. Keep away from sources of fire and heat 5. Prevent leakage and spread 6. Store aerosol cans with the valve and nozzle facing upwards

Step 1: Confirm that the can is completely empty. · Press the nozzle until the last drop is released. · Invert the nozzle to confirm that no gas or liquid is ejected. · If a pressurized propellant (such as butane) is present, handle with caution and avoid open flames. Step 2: Label or perforate the can (if permitted). Step 3: Dispose of the can in a metal recycling bin.

A standard three-piece tinplate aerosol can withstand pressures of 12-18 bar (176-260 psi), meeting the international DOT 2Q (180 psi burst pressure) standard. The reinforced design of the cone and dome directly determines whether the can can withstand the expansion pressures experienced during daily transportation, storage, and even high-temperature environments.

The cone and dome of an aerosol can are metal structural components that connect the can body and the nozzle. · The cone: A tapered structure that transitions from the larger diameter of the can body to the smaller diameter of the dome. · The dome: A slightly arched top structure that secures the valve and ensures stable internal pressure through sealing.

The three-piece aerosol can is the most common aerosol packaging format on the market. It consists of three main components: the can body, the cone (the conical top), and the dome (also known as the bottom). The can body is typically made of tinplate steel and joined by crimping or welding. The cone is attached to the top, and then combined with the dome to form a complete three-piece structure.

The can is typically filled with a liquid mixture of propellant and payload. When the liquid temperature rises, the gas pressure increases. The dome space provides a buffer zone, allowing the gas to expand without overpressure or severe deformation of the can.

Tinplate aerosol can manufacturing process: 1. Raw material preparation: 2. Printing and coating: 3. Stamping: 4. Dome manufacturing: 5. Dimensional standardization: 6. Quality inspection process:

According to U.S. Code of Federal Regulations (CFR) 49 §173.306, metal aerosol cans must not exceed an internal pressure of 180 psig at 54.4°C (130°F), and the container must be able to withstand at least 1.5 times the thermal equilibrium pressure without rupture or deformation.