What should be paid attention to during the heat sealing process of double-film independent gas cabinet

The heat-sealing process of the double-membrane independent gas cabinet is crucial and directly related to the airtightness, durability and safety of the gas cabinet. The following are the key points to pay attention to during the heat-sealing process:

Ⅰ. Preparation

1.Membrane material selection and inspection:

Select standard membrane materials to ensure that both the inner and outer membranes have good physical and chemical properties.

Before heat-sealing, the membrane materials are strictly inspected, including tests of thickness, weight, strength, anti-aging and other indicators.

2.Heat-sealing equipment calibration:

Ensure that the temperature, time and other parameters of the heat-sealing machine are accurate and reliable, and perform necessary calibration before use.

Check whether the heating elements, control systems and transmission mechanisms of the heat-sealing machine are working properly.

3.Working environment preparation:

Heat-sealing is carried out in a dust-proof, moisture-proof and pollution-free environment to ensure the stability of the membrane material and heat-sealing quality.
Keep the working area clean and orderly to avoid the influence of debris on the heat-sealing process.

Ⅱ. Heat-sealing process control

1.Temperature control:

Set the appropriate heat-sealing temperature according to the characteristics of the membrane material and the heat-sealing requirements.

During the heat-sealing process, monitor and adjust the temperature in real time to ensure that the temperature is stable and meets the process requirements.

2.Time control:

Set a reasonable heat-sealing time to ensure that the film is fully heat-sealed and not overheated.

Strictly control the heat-sealing time to avoid inadequate heat-sealing due to too short a time or damage to the film due to too long a time.

3.Pressure control:

During the heat-sealing process, apply appropriate pressure to ensure that the film fits tightly.

Avoid deformation or damage of the film due to excessive pressure, and loose heat-sealing due to too little pressure.

4.Weld processing:

The weld is a key part of the heat-sealing process, and special attention should be paid to its quality and airtightness.

Adopt advanced weld processing technologies, such as automatic welding and laser welding, to improve the strength and stability of the weld.

Ⅲ. Quality inspection and acceptance

1.Appearance inspection:

Carry out an appearance inspection on the heat-sealed film to ensure that there are no defects such as wrinkles, damage, and bubbles.

Check the flatness and continuity of the weld to ensure that the weld quality meets the requirements.

2.Airtightness test:

Carry out an airtightness test on the heat-sealed gas cabinet to ensure that it can withstand a certain pressure without leakage.

During the test, relevant data is recorded and analyzed to evaluate the air tightness and durability of the gas cabinet.

3.Performance test:

According to relevant standards and requirements, the gas cabinet is tested for performance, including pressure stability, corrosion resistance, etc.

Ensure that the performance of the gas cabinet meets the design requirements and use requirements.

IV. Safety measures

1.Personal protection:

Operators need to wear appropriate personal protective equipment, such as protective gloves, safety glasses, etc.

Avoid direct contact with high-temperature components and harmful substances during the heat sealing process.

2.Equipment safety:

Ensure that the heat sealing machine, power supply and other equipment are well grounded to prevent electric shock accidents.

Regularly check and maintain the equipment to ensure that it is in good working condition.

3.Fire prevention:

During the heat sealing process, pay close attention to fire sources and flammable substances to avoid fire accidents.

Equipped with necessary fire-fighting equipment and emergency measures to deal with possible fire risks.

The heat sealing process of the double-membrane independent gas cabinet requires attention to multiple key points, including preparation, heat sealing process control, quality inspection and acceptance, and safety measures. By strictly controlling these key points, the heat sealing quality and safety of the gas cabinet can be ensured to meet the use requirements.