In the packaging process of the vacuum packaging machine, the vacuum quality and heating quality are both aspects that affect the product packaging quality. This requires us to know more about the use status of the vacuum pump and heating device of the equipment, but also in various heating devices. Choose carefully on the auxiliary equipment. Then, before choosing, let's first understand the difference between its heating devices.

When the early vacuum packaging machine was introduced, it was basically made of aluminum alloy material with a heating bar for thermal bonding and sealing. Later, it was found that the coefficient of thermal expansion and contraction of aluminum alloy is relatively large, and it is easy to deform. Moreover, it is made of metal and must be added with water to cool after sealing.

Subsequent development of a phenolic resin to replace it, coupled with imported nickel alloy heating strips, installed copper block heating devices at both ends, can achieve instantaneous heating very stably, and will not deform or need to add water to cool, because the resin itself It has the effect of insulation and will not be affected by temperature.

In summary, the heating device of the vacuum packaging machine has mainly undergone two stages of changes in the early aluminum alloy material and the late phenolic resin material. At present, this imported nickel strip alloy heating bar can already make the equipment very stable. The heating is working, so it will be more widely used in the future, I hope you can understand it.