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2017-06

What is the cause of foaming in the groove of the blister machine? How to solve it?

What is the cause of foaming in the groove of the blister machine? How to solve it?

Blister machineGenerally, large-area blistering and local blistering will occur in the groove blistering. Today, the small editor of Yonghengsheng Blister Machine Network will give you the following specific reasons:

1. large area blistering

Cause analysis:

1. The temperature or pressure does not meet the requirements, resulting in false suction;

2. The amount of glue is not enough, the amount of spraying is small or the plate is infiltrated with glue;

3. Preheating (softening PVC film) or blister time (molding time) is not enough;

4. After plastic molding, the pressure is removed before the temperature drops.

The heat resistance of the glue itself is not enough.

Solution:

1. Increase the temperature or vacuum degree;

2. Increase the amount of glue, choose good quality plate;

3. Increase preheating or molding time;

4. After plastic molding, the temperature is cooled to room temperature or slightly higher before the vacuum is withdrawn.

5. Use with curing agent.

2. local blistering

Cause analysis:

1. Spray glue is not uniform, resulting in less local glue, so that the bond strength decreased;

2. The problem of PVC film, PVC film contains plasticizer, in the case of aging or heat, plasticizer easy to migrate to the surface, affecting the bond strength;

3. There is a problem with the heating tube in the blister machine, resulting in uneven temperature.

Solution:

1. Try to make the amount of glue spray uniform;

2. Use good quality PVC film;

3. Timely maintenance of equipment.

The full text above is about 《What is the cause of foaming in the groove of the blister machine? How to solve it?"All content, I hope to help you! Shenzhen Yonghengsheng Machinery Manufacturing Co., Ltd. has been committed to research and development for 16 years.Blister machine,Shenzhen bubble shell machine,Shenzhen vacuum blister machine,Shenzhen thick sheet blister machine,Shenzhen Blister Forming Machine, is professionalSuction Plastic machine manufacturers~ Shenzhen thermoplastic molding machine, blister machine hotline: 0755-84817776

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