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When a three-piece aerosol can is inverted, in most cases, gas is sprayed, not liquid. Even if a small amount of liquid is ejected with the gas, it will be intermittent and uneven, significantly reducing the spray effect. The liquid cannot be sprayed properly, resulting in inefficient use of the remaining contents in the can.

In high-pressure aerosol products, the internal pressure is often much higher than that of ordinary packaging containers. The three-piece aerosol can is suitable for such products primarily due to the following factors: • High structural strength • Scientific material selection • Reliable valve seal

Carrying tinplate aerosol cans on board increases the pressure difference between the internal and external pressures, potentially causing them to expand or even explode. Even high-quality cans cannot fully protect against the risks posed by high-altitude, low-pressure environments.

Safely processed tinplate aerosol cans should be collected separately. For households, they can be placed in recyclable metal waste collection bins. For industrial users, they should be stored in a fire-proof, explosion-proof, and well-ventilated area in accordance with hazardous waste storage standards for centralized recycling.

• 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.