If the vacuum machine is not sealed, what will happen from time to time, there are many reasons for the vacuum packaging is not sealed, the following, Xiaobian to tell you: The vacuum machine is not sealed how to do?

1. There is oil in the pocket and it is not sealed well. This is not a technical or quality issue, choose funnel packaging, sealing or simple operation before packaging

2, full heating temperature, conditioning thermometer, standard vacuum bag can be heated for about 2 seconds

3. Check whether the metal strip under the insulation cloth can be damaged

4. Whether the vacuum pump can work normally

5, the heating cloth has always been clean to avoid debris melting in the heating cloth

6. Check the pressure of the driving cap

7, pay special attention to the aging of the heating wire

8. Is the heat seal relay broken

9, heating wire and copper screw contact condition

10, transformer can work

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