Impulse welding is a process where electricity is used to generate heat by flowing through a high resistance heating strip, which is coated to minimise material adhesion to the surface.
The current causes rapid heating in the heating strip and heat is transferred to the materials.
During a traditional impulse welding process, there are many consecutive heating and cooling cycles, which creates challenges in terms of changes in the linear dimensions of the heating band due to the heat generated and its accumulation in the components during prolonged operation.
We have developed a proprietary system with closed-loop feedback that enables control of the welding cycle both at the beginning and after many hours of operation of the machine. The system therefore automatically compensates for variables in materials, environment and current fluctuations, thus ensuring an accurate and repeatable target temperature. This welding method is applied with a high degree of success to new engineering materials that cannot be welded conventionally or with high frequency.
The machine is ready for welding immediately after the start-up. It is not necessary to wait for the electrode to heat up.
The electrical energy is used to heat the electrode only during the actual welding of the material.
None of the components heat up for an extended period of time, which eliminates the risk of burns.
Applications and benefits of impulse welding
Impulse welding is a technology that has applications in many industries. Due to the efficiency and precision of this material bonding technology, it is primarily used by numerous manufacturers of tents, awnings and sunshades.
Impulse welding offers a number of benefits that make it the technology of choice for many industries. First of all, it is a fast and efficient process – the machine is ready to go as soon as it is started, and there is no need to wait for the electrode to heat up. Furthermore, there is only electricity used during the welding itself, which makes the process more economical. Another benefit of impulse welders is safety – no components heat up for a prolonged period of time, thus reducing the risk of burns among those operating the machine.
Choosing the right impulse welder is dependent on a number of factors. Firstly, the type of material to be welded must be taken into account.Another important factor is the size of the production and the size of the product itself – for small production runs and small products machines with less power may be sufficient, while for large production runs and large products, machines with more power are recommended. It is also important to consider the build quality of the machine and the technical support offered by the manufacturer. Zemat, as a provider of in-house welding machines, will also provide comprehensive after-sales service support.
Get in touch
Zemat Technology Group Sp. z o.o.
ul. Brukowa 26
91-341 Lodz, POLAND
Phone: +48 42 632 84 84
Fax: +48 42 299 60 46
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