Quality Frequency Drive Inverter & Vector Frequency Inverter factory from China

Canroon New Breakthrough In Induction Heating Technology

Science and technology are the primary productive forces, and innovation is the primary driving force for development. At present, a new round of scientific and technological revolution in the world is gestating and emerging, which is profoundly affecting the world's development pattern and profoundly changing the production and lifestyle of mankind. New technological factors accelerate the integration of resources in traditional industries, in order to adapt to development and remain invincible under the conditions of the new era. Canroon accelerates new breakthroughs in key core technologies, and concentrates on researching the perfect and close integration of intelligent induction heating and robotic arm to create an robotic arms intelligent induction heating system. Canroon robotic arm intelligent induction heating system can customize the corresponding heating plan according to the heating needs of different industries and different occasions, and can accurately control the heating position and time. At the same time, the induction heating system has intelligent control, intelligent computer interface, remote control and automatic fault diagnosis, miniaturization, suitable for field and other special occasions, intelligent, efficient and energy-saving control performance of the induction heating power supply system is becoming the future development goal. The Canroon robotic arm intelligent induction heating system has been successfully applied in many industries such as welding, brazing, and quenching, further solving the application of induction heating in some special occasions, further saving manpower and improving production efficiency for enterprises. The robotic arm is the most widely used automated mechanical device in the field of robotic technology. It can be seen in the fields of industrial manufacturing, medical treatment, entertainment services, military, semiconductor manufacturing, and space exploration. The robotic arm can accept instructions and accurately locate a point in three-dimensional (or two-dimensional) space to perform operations. The robotic arm is more precise and efficient than human operation, and it further solves the application of some special occasions. Robotic arm intelligent induction heating system experiment Robotic arm intelligent induction heating system in the water-cooled chiller welding experiment Why choose induction heating? The advantages of induction heating: ① There is no need to heat the whole, the deformation of the workpiece is small, and the power consumption is small. ②No pollution. ③The heating speed is fast, and the surface oxidation and decarburization of the workpiece is lighter. ④The surface hardened layer can be adjusted as required, which is easy to control. ⑤The heating equipment can be installed on the mechanical processing production line, which is easy to realize mechanization and automation, easy to manage, and can reduce transportation, save manpower, and improve production efficiency. ⑥The martensite structure of the hardened layer is finer, and the hardness, strength and toughness are higher. ⑦After surface quenching, the surface layer of the workpiece has a larger compressive internal stress, and the workpiece has a higher fatigue resistance. The future characteristics of induction heating equipment as the degree of automation control of induction heat treatment production lines and the high reliability requirements of power sources increase, it is necessary to strengthen the development of complete sets of heating process devices. At the same time, the induction heating system is developing towards the direction of intelligent control. The induction heating power supply system with intelligent computer interface, remote control and automatic fault diagnosis, miniaturization, suitable for field operations, high efficiency and energy saving control performance is becoming the future development goal. The induction heating can be used in a variety of occasions, mainly include: （ 1 ）Metallurgy: smelting of non-ferrous metals, heat treatment of metal materials, stealing heat in the production of forging, extrusion, rolling and other profiles; welds in the production of welded pipes. （ 2 ）Machinery manufacturing: quenching of various mechanical parts, and heating for heat treatment such as tempering, annealing and normalizing after quenching. Diathermy before pressure processing. （ 3 ）Light industry: the sealing of cans and other packaging, such as the sealing packaging of the famous Tetra Pak brick. （ 4 ）Electronics: heating for vacuum degassing of electron tubes。

What's a Frequency Inverter?

A variable frequency drive or frequency inverter is a type of motor control that drives an electric motor by varying the frequency and voltage of its power supply. In addition, it is able to control engine start-up and shut-down during starting and stopping, respectively. Frequency inverter also called frequency converter, it is a power control conversion device to convert normal power supply (50Hz or 60Hz) to another frequency power by inner power semiconductor on/off behaviors, to control electric motors in variable speed operations. The frequency inverter is mainly consisted of rectifier (AC to DC), filter, inverter (DC to AC) , braking unit, drive unit, detection unit and micro processing unit etc. The control circuit controls main circuit, the rectifier circuit converts AC power into DC power, DC intermediate circuit smoothing the rectifier circuit output, then the inverter circuit reverse DC current into AC current again. There are many reasons why we should adjust the engine speed. Examples: For saving energy and improving the efficiency of systems For power conversion in hybridization applications For adapting the speed to the process requirements For adapting the torque or power of a drive to the process requirements For the improvement of the working environment For a lower noise level, for example with fans and pumps For reducing the mechanical load on machines to extend their service life For peak load reduction to avoid peak demand charges and reduce the required motor size. The most common applications of a frequency inverter are the control of fans, pumps and compressors. These applications account for 75 % of all drives operating worldwide.

What are the control methods of frequency inverter ？

Generally frequency inverter has following control modes: open loop torque control, open loop vector control, closed loop vector control, V/F control,slip frequency control. Open-loop torque control inverter (without PG card) Suitable for the system require less torque control accuracy, such as wire-wound, drawing machines, etc. In torque control mode, the speed of the motor is determined by the loads on the motor, its acceleration and deceleration speed is no longer controlled by the frequency inverter acc/dec time. Tip: in vector control mode, you need to know more about the electric motor parameters, in order to get full advantages of the vector control frequency inverter. Open-loop vector control inverter Apply to high performance general-purpose application with no PG encoder, one frequency inverter controls an electric motor only. Such as machine tools, centrifuge machines, wire drawing machine, injection molding machine, etc. V/F control inverter Suitable for the applications don’t need high control precision, like fans and pumps. The frequency inverter can be used for dragging multiple motors. Slip frequency control inverter Slip frequency control is direct controlling the torque, which is based on the V/f control mode, in accordance with the actual speed of the induction motor corresponding power frequency, adjusting the inverter output frequency with desired torque, therefore make the induction motor have a corresponding output torque. In this control method, needs to install a speed sensor in the control system, sometimes needs to install additional current feedback to control the frequency and current. So it is a closed-loop control mode, the frequency inverter has a good stability, and has a great response characteristics for fast acceleration and deceleration and load changes.

Big Success for Essen Exhibition 2017 in German

2017 Essen Exhibition was held during 24th to 29th, Sep in Dusseldorf, German. Canroon team exhibited two types of induction heating machines: CR2000 series 10kw portable type for pipe heat treatment and CR2100 series 50kw combined type with chiller built-in for brazing. In the exhibition, most visitors are from Europ countries, and they prefer new advanced and energy saving equipment. Compared with traditional heating method, induction heating is much faster and higher efficiency, and suitable for big industries in automatic production line. Both CR2000 series and CR2100 series are newly advanced with digital control, modular design, and self fault feedback. So Canroon products are exactly what customers are looking for. Besides, there were several customers take the workpiece to our booth for testing. We did induction brazing for copper tube, heat exchanger, and steel bar. Customers were satisfied with good performance of our machines. Canroon aims to provide the high quality products with the best prices. We create, we share!

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