High frequency plastic welding machine is a kind of equipment used in the field of plastic packaging. It uses electronic self excitation to generate a high-frequency electric field, which is applied to the electrode. Under the effect of the high-frequency electric field, the molecular structure of plastic will be polarized, and generate heat by itself, and the pressure will act on the purpose of hot melting. So let's learn how to choose the right high frequency plastic welding machine? What should be done in case of failure to weld?
How to deal with the failure of high frequency plastic welding machine:
1. The power of high cycle plastic welding machine is different, such as 5kw.10kw.35kw 75kw, etc. The power of the high cycle plastic welding machine depends on the heat sealing area of the product. Generally, a heat sealing area of 1 square centimeter consumes 100 watts of power.
2. There are differences in the form of station, such as the upper and lower double station sliding table, double station rotary table, three station disc, four station disc, etc., as well as reclaiming with a mechanical arm.
3. There are industrial differences, such as high frequency plastic welding machine for medical industry.
4. There are two differences between the high cycle plastic welding machine: welding and fusing. The welding only carries out heat sealing, and fusing includes heat sealing and cutting processes.
Purchasing skills of high frequency plastic welding machine:
1. Check the welding time on the control panel, which is used to control the welding time of the product. There are usually two common time systems, 0-10S and 0-30S. If the time is too short, it is easy to cause the product to be poorly welded, which can be opened immediately and cannot be fused. This time is generally adjusted to between 3-8S, depending on the product shape and material thickness, and increases slowly from short to long.
2. Check whether the pressure conforms to the welding effect of the product. If the pressure is too small, it is easy to cause low welding strength and bad appearance of the product. If the pressure is too small, please adjust the pressure regulating valve, pull up the adjusting switch, turn it to the right to increase, and turn it to the left to decrease. The pressure pointer will be adjusted at about 0.5MPaz when leaving the factory, and the air pressure cannot exceed 0.8MPa. The service life may also be affected by insufficient air supply and overload of components.
3. Find out the electronic tube, the core component of the high frequency plastic welding machine. Before powering on, first check whether the electronic tube is bright. This is simple and intuitive. If the light is not on, the electronic tube is broken. Check whether the air cooling system of the electronic tube has any fault. This is generally the reason why the electronic tube is damaged. Replace it with a new one.
4. First, check whether the materials contain 30% PVC, PET, PETG, TPU, PU and other substances. If the materials should not be replaced, check whether there is a polar temperature controlled heating device. The main purpose of temperature rise is to heat the mold, so that it can conduct heat better and have better welding effect. The temperature can be adjusted according to the material characteristics.
Thank you for your patient reading. The above is about how to select a suitable high frequency plastic welding machine? How to deal with the situation that cannot be welded? Some of the contents are from the network and are for reference only. If you want to know more about the high frequency plastic welding machine, please call for details, and we will be happy to serve you.
