Countermeasures for improving the scars outside the film of vacuum electroplating equipment:

Countermeasures for improving the scars outside the film of vacuum electroplating equipment:

 

(1) Strengthen the operating standards of operators.

 

(2) Make a list of work mistakes and supervise operators to avoid work mistakes.

 

(iii) Improve the lens placement interval

 

(iv) Improve the lens handling method

 

(v) Improve the placement of utensils and packaging materials.

 

(vi) Improve ultrasonic cleaning process parameters

 

(vii) Strengthen the pre-engineering inspection and pre-plating inspection.

Vacuum plating equipment film scars (film damage)

 

① Film damage caused by lens placement equipment and packaging materials.

 

② Membrane damage caused by ultrasonic cleaning after plating.

 

③ Membrane damage caused by negligence in each operation process.

 

 

 

Improvement ideas: Review the work process and related equipment materials to eliminate scratches and film damage.

Maintenance of the coating chamber of the vacuum coating machine:

 

The manufacturer of the coating machine recommends that during the process of lowering the bell jar, it is necessary to ensure the airtightness of the edge of the bell jar. If the bell jar needs to be lifted when the vacuum coating machine is in working state, then the bell jar must be isolated from other systems first (that is, the high valve and the pre-extraction valve are closed), and then slowly open the vent valve, and finally the bell can be lifted. Bell Jar. If the bell jar needs to be lowered after the bell jar is raised, when the bell jar is pumped again, first close the air release valve, and then slowly open the pre-extraction butterfly valve, the high valve is still in its original state.Vacuum coating machine Maintenance of composite vacuum gauge: Start to use a thermocouple vacuum gauge to measure the vacuum degree of the system. When the vacuum degree is higher than 0.1Pa (that is, the pressure is less than 0.1Pa), the ionization gauge can be turned on, otherwise, it is easy to damage the ionization gauge. The ultimate vacuum degree of the ionization meter is 6.67 × 10-4Pa. When the vacuum inside the bell jar reaches the coating requirements and prepares for coating, turn off the ionization vacuum gauge.

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