The working principle of the electron beam welding machine is that the electrons heated by the cathode are accelerated by the high voltage electric field to form an electron beam with an extremely high energy density, which hits the work piece. The huge kinetic energy is converted into heat energy to melt and weld the work piece. Electron beam welding machine is a high-tech industrial product, involving high-voltage technology, electron optics, vacuum technology, precision machinery manufacturing, automation technology, computer technology and many other high-tech technologies and manufacturing processes.
The high voltage power supply used for electron beam welding machines has higher technical requirements than other types of high voltage power supplies.
First of all, there are high requirements for the ripple and stability of high voltage power supplies. In general, the ripple coefficient is less than 1% and the stability is ±1%. Almost all electron beam welder manufacturers have put forward such requirements. Some of companies also require a medium voltage type with a relative ripple coefficient of less than 0.5% and a stability of ±0.5%, while also suggesting the repeatability requirement of less than 0.5%. The above requirements are all determined based on the electron beam and welding process.
The second is the protection performance requirements. High voltage power supply for electron beam welding machines must be interlocked with the relevant systems during operation, including vacuum chaining, cathode chaining, gate valve chaining, and focus chaining to ensure equipment and personal safety. The high voltage power supply must comply with EMC standards, and come with a soft-start function to prevent the sudden shutdown of the power supply.
In addition, there are some other requirements, such as high reliability, long continuous working hours, appearance that meets the requirements of industrial equipment, and easy maintenance.
ATI's high voltage power supply can meet all the above requirements, with high-quality indicators, complete performance, safe protection, compact size, as well as up to 21 years of design life and 2 years of unconditional after-sales service.
ATI offers a full range of high voltage power supplies. Based on the input voltage, it can be divided into AC input (AC-DC) and DC input (DC-DC) power supplies. DC input is further subdivided into 5V, 12V, 24V and 30V. According to the output voltage, it is divided into two types: positive output voltage and negative output voltage. Each type can be subdivided into dozens of kinds according to the output voltage from 1kV to 60kV. The power supplies with same output voltage can be divided into 0.5mA, 1mA, 3mA, 5mA, 10mA and so on according to the maximum output current.
In summary, it is strict to select proper high voltage power supply for electron beam welding machines, and ATI's high voltage power supply module can fully meet these requirements and is worthy of being selected and trusted.
