Servo motor refers to the engine that controls the operation of mechanical components in the servo system. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator and has the characteristics of small electromechanical time constant, high linearity, starting voltage, etc. It can convert the received electrical signal Converted into angular displacement or angular velocity output on the motor shaft. Divided into two categories: DC and AC servo motors.   Working principle A servo mechanism is an automatic control system that enables the output controlled quantities such as the position, orientation, and state of an object to follow any changes in the input target (or given value). The servo mainly relies on pulses for positioning. Basically, it can be understood that when the servo motor receives a pulse, it will rotate at an angle corresponding to the pulse, thereby achieving displacement. Because the servo motor itself has the function of emitting pulses, every time the servo motor rotates through an angle, it will emit a corresponding number of pulses. In this way, it forms a response to the pulses received by the servo motor, or is called a closed loop. In this way, the system will know How many pulses are sent to the servo motor and how many pulses are received back at the same time. In this way, the rotation of the motor can be controlled very accurately, thereby achieving precise positioning, which can reach 0.001mm. Classification of servo motors Servo motors can be divided into DC servo motors and AC servo motors. DC servo motor The basic structure of a DC servo is similar to that of a general DC motor. Motor speed n=E/K1j=(Ua-IaRa)/K1j, where E is the armature counter electromotive force, K is a constant, j is the magnetic flux of each pole, Ua and Ia are the armature voltage and armature current, Ra is The armature resistance, changing Ua or changing φ, can control the speed of the DC servo motor, but the method of controlling the armature voltage is generally used. In the permanent magnet DC servo motor, the excitation winding is replaced by a permanent magnet, and the magnetic flux φ is constant. . DC servo motor has good linear adjustment characteristics and fast time response. However, AC servo motors have limitations in brush commutation and speed, have additional resistance, and produce wear particles. AC servo motor The basic structure of an AC servo motor is similar to an AC induction motor (asynchronous motor). There are two excitation windings Wf and control windings WcoWf with a phase space displacement of 90° electrical angle on the stator. They are connected to a constant AC voltage and use the changes in the AC voltage or phase applied to Wc to control the operation of the motor. AC servo motors have the characteristics of stable operation, good controllability, fast response, high sensitivity, and strict nonlinearity indicators of mechanical characteristics and adjustment characteristics (required to be less than 10% to 15% and less than 15% to 25% respectively). Shungrui Motor, a subsidiary of Shunge, specializes in high-power and high-torque permanent magnet AC servo motors. It currently has two series, 18 and 25, which can meet the needs of most customers. We can also provide motor customization services according to customer needs, which is very cost-effective. Welcome to contact us for consultation.

Transformers achieve voltage transformation through electromagnetic induction. When an alternating current (AC) flows through the primary winding of the transformer, it generates a changing magnetic field. This changing magnetic field induces a voltage in the secondary winding based on the turns ratio between the primary and secondary windings. As a result, the voltage is stepped up or stepped down without altering the frequency, allowing efficient transmission of electrical energy across different voltage levels. A transformer operates based on the principle of electromagnetic induction. It consists of two insulated windings wound around a closed iron core. These windings, known as the primary winding or the first winding, and the secondary winding or the second winding, have different numbers of turns and are only magnetically coupled without electrical connection. When the primary winding is connected to an AC power source, an alternating current flows through it, creating an alternating magnetic flux in the iron core. This flux induces voltages, denoted as e1 and e2, respectively, in the primary and secondary windings at the same frequency. When a load is connected to the secondary winding, the voltage e2 causes the current to flow through the load, enabling the transfer of electrical energy. This accomplishes the voltage transformation. According to Equation, the magnitude of the induced voltage in the primary and secondary windings is proportional to their respective numbers of turns. Since the induced voltage is approximately equal to the actual voltage of the windings, by having different numbers of turns in the primary and secondary windings, the voltage conversion in a transformer can be achieved.

  The core of the transformer is the magnetic circuit part of the transformer.  It is usually made of hot-rolled or cold-rolled silicon steel sheets with a high silicon content and coated with insulating paint on the surface. The iron core and the coils wound around it form a complete electromagnetic induction system. The amount of power transmitted by the power transformer depends on the material and cross-sectional area of the core.   The iron core is one of the most basic components of the transformer. It is the magnetic circuit part of the transformer. The primary and secondary windings of the transformer are on the iron core. In order to improve the permeability of the magnetic circuit and reduce the eddy current loss in the iron core, the iron core is usually Made of 0.35mm, surface insulated silicon steel sheet. The iron core is divided into two parts: an iron core post and an iron yoke. The iron core post is covered with windings, and the iron yoke connects the iron core to form a closed magnetic circuit. In order to prevent the metal components such as the transformer core, clamps, and pressure rings from inductive floating potential being too high and causing discharge during operation, these components need to be grounded at a single point. In order to facilitate testing and fault finding, large transformers generally have the core and clamps lead out to the ground through two bushings respectively.

The motor lamination's punch size is given by the design. The following discusses the factors that affect quality in manufacturing when the design remains unchanged. 1. Loss and magnetic permeability of silicon steel sheets The specific loss properties of silicon steel sheets from different manufacturers and different batch numbers from the same manufacturer are not exactly the same. Although there are standard prescribed values, they fluctuate within a certain range. If the amplitude of the fluctuation is relatively large, or the material of the silicon steel sheet itself does not meet the requirements, then the use of such silicon steel sheets on the motor will greatly affect the performance of the motor, especially for medium and large motors, where iron loss accounts for 10% of the loss. The larger the proportion, the more obvious the impact on performance (mainly temperature rise and power factor). This is a hidden danger that is difficult to detect from the electromagnetic design. 2. Silicon steel sheet mold is out of tolerance Silicon steel sheet molds, such as slot punching dies and release molds, have a gap between the punch and the die that gradually increases during use. Some manufacturers are still dealing with production when the mold is out of tolerance, and the consequences are: the punching burrs are significantly increased. If the burr is large, the iron loss and no-load current will increase, causing the temperature rise of the motor to increase, the power factor to decrease, and the efficiency to decrease. 3. Insulation between silicon steel sheets The insulation between silicon steel sheets can suppress the eddy current in the iron core, thereby reducing the resulting eddy current loss (it is included in the iron loss). The insulating layer between chips is formed in the following three ways: (1) Inter-chip insulation composed of the paint film of the cold-rolled silicon steel sheets; (2) The motor manufacturer applies insulating paint on the punched sheets without paint film; (3) The motor manufacturer oxidizes the punched sheets to form an insulating layer .

Control motors can be categorized into different types based on their functionality and application. The classification includes servo motors, stepper motors, torque motors, switched reluctance motors, and brushless DC motors. 1. Servo Motors Servo motors are extensively used in control systems for precise speed and position control. They convert input voltage signals into mechanical output, allowing controlled components to be manipulated. Servo motors are available in both DC and AC variants, with AC permanent magnet synchronous and DC brushless motors being commonly used. 2. Stepper Motors Stepper motors translate electrical pulses into angular displacement. By controlling the number of pulses, precise positioning, speed regulation, and acceleration can be achieved. Common types of stepper motors include reactive stepper motors, permanent magnet stepper motors, hybrid stepper motors, and single-phase stepper motors. 3. Torque Motors Torque motors are flat multi-pole permanent magnet DC motors designed to minimize torque and speed pulsations. They exhibit a good response and their output torque is proportional to the input current, regardless of rotor speed or position. Torque motors can operate at low speeds without the need for gear reduction, providing a high torque-to-inertia ratio. 4. Switched Reluctance Motors Switched reluctance motors feature a simple and robust structure, low cost, and excellent speed regulation performance. They are a competitive alternative to traditional control motors, although they may exhibit torque pulsation, noise, and vibration which require optimization and improvement for practical applications. 5. Brushless DC Motors Derived from brushed DC motors, brushless DC motors rely on AC drive current. They can be classified into brushless speed motors and brushless torque motors. The drive currents for brushless motors can be trapezoidal waves (commonly referred to as "square waves") or sine waves. Brushless DC motors are compact and lightweight compared to brushed DC motors, with reduced moment of inertia. Their capacities typically fall below 100kW. These classifications provide a comprehensive breakdown of control motors, each serving specific functions across various industries and applications.

If you want to know whether silicon steel  magnetically hard, you first need to know the difference between hard magnetic materials and soft magnetic materials. Hard magnetic materials, also called permanent magnetic materials, are materials that can maintain constant magnetism once magnetized. Commonly used permanent magnet materials include alnico permanent magnet alloys, iron-chromium-cobalt permanent magnet alloys, permanent ferrite magnets, rare earth permanent magnet materials and composite permanent magnet materials. Soft magnetic materials are magnetic materials with low coercivity and high magnetic permeability, which are easy to magnetize and demagnetize. Its main function is magnetic conduction, conversion and transmission of electromagnetic energy, and it is widely used in various power conversion equipment. It mainly includes metal soft magnetic materials, ferrite soft magnetic materials and other soft magnetic materials. Silicon steel is easy to magnetize and is known for its high magnetic permeability and low core loss. It is the most widely used soft magnetic material.

Silicon steel is a special material, mainly composed of iron, silicon, steel and other elements. Among them, silicon is one of the main components of silicon steel sheets, and its content is generally between 2% and 5%. The addition of silicon can increase the magnetic permeability and reduce hysteresis loss and eddy current loss. In addition to silicon, silicon steel also contain large amounts of iron and steel. Iron is the main component of silicon steel, and its content is generally above 96%. Steel is mainly used as a reinforcing material for silicon steel. Adding an appropriate amount of steel can improve the hardness and strength, and can also improve the corrosion resistance and wear resistance of silicon steel. Silicon steel also contains other elements, such as manganese, copper, molybdenum, etc. The addition of these elements can improve the mechanical properties and thermal stability and increase the durability and service life. In short, silicon steel sheet is a special material composed of multiple elements. It is an important soft magnetic alloy that is indispensable for power, electronics and military industries.

In the previous article, we know that silicon steel can be divided into oriented silicon steel and non-oriented silicon steel, which have different uses. So what are the uses of these two similar silicon steels? Today’s article will tell you. Use of Oriented Silicon Steel Oriented silicon steel, or CRGO, is an important soft magnetic material in the military and electronic industries, mainly used as high-frequency transformers, high-power magnetic amplifiers, pulse generators, general yoke coils, inductors, storage and memory components, switches and control components, magnetic shielding, and transformers operating under vibration and radiation conditions. Compared with other materials such as ferrite and amorphous materials, the iron core can be made very small due to the high saturation magnetic induction and high magnetic permeability of the 3% Si-Fe thin strip. Because it is a cold-rolled strip, it has a smooth surface, small differences between the same plates, good plate shape, and good processing performance. It can be made into iron cores of various shapes and specifications such as CD type, ring type, and rectangular type. It has a wide range of applicationsand wide frequency range (50H-20KH). Use of Non-oriented Silicon Steel Non-oriented silicon steel is mainly used in motors: Gap motors (water pumps) mainly use cold-rolled, non-oriented, uncoated silicon steel. Motors for electric welding machines are divided into DC motors and AC motors. DC motors can use uncoated cold-rolled silicon steel, and AC motors mainly use coated 600 non-oriented silicon steel. Air compressor, and pneumatic pump motors can also use uncoated cold-rolled silicon steel. The micro motors used in small household appliances mainly use non-oriented 470. Most of the motor used in CNC machine tools is 470. Motors for air conditioning compressors mainly use 600, 800, 1000, and 1300 silicon steel. Air compressor Silicon steel occupies a very important position in electrification construction. In a sense, the amount of silicon steel sheets used in a country can measure the degree of electrification in the country. Therefore, in the long run, electrical steel has great development prospects. Have any questions or requirements about silicon/electrical steel, feel free to contact us.

After the industrial revolution, mechanical equipment was widely used in all walks of life. We usually see all kinds of large and small household appliances, but there is one thing that is important but not well known. It is——servo motor. industrial revolution Servo motor, or “servo” refers to the engine that controls the operation of mechanical components in the servo system. It is an indirect transmission device that assists the motor. Although servo motors are compact, they are very powerful and are known to be incredibly energy-efficient. Servo motors are used in home appliances, cars and industrial equipment. Servo motors can control speed and position accuracy very accurately, and can convert voltage signals into torque and rotational speed to drive control objects. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator and has the characteristics of small electromechanical time constant, high linearity, starting voltage, etc. It can convert the received electrical signal Converted into angular displacement or angular velocity output on the motor shaft. They are divided into two categories: DC and AC servo motors. Their main feature is that there is no rotation when the signal voltage is zero, and the rotational speed decreases at a constant speed as the torque increases. All in all, servos can rotate and push parts of a machine with precision by its electronic devices and actuators, and is widely used by manufacturing companies. servo motor parts

Recently, we have been exporting ten containers of electrical steel to the transformer and motor manufactures in Vietnam. Container Loading Process Inspection is the final stage gate before export. Today I’ll show you what we do before exporting silicon steel. Silicon steel is also known as electrical steel, lamination steel, or transformer steel, and it’s widely used in large motors, relays, solenoids, appliances’ motors, wind turbines, cores of transformers, EV, etc.   There are several required steps before exporting. 1. Labeling. All the labels are customized according to customer demand. No Chinese labels are allowed to show when it comes to exporting. 2. Container Inspection before loading. Inspection of the inside of the container is essential, small holes that light could go through need to take extra caution. Patches, breakages and holes may cause potential damage of the container after delivery.  3. Consolidation. Strong Wooden pallet and wire rope are used to hold and consolidate the coil. We choose 10x10cm durable square wood as the pallet to hold the coil as well as to further fasten and consolidate the 4 corners of the container. Professional loading team is hired to guarantee the loading is strictly in accordance to the requirement of the shipping company.     After all these are done, the containers will head to the port. Waiting to ship! But that is not the end of the order, we will track closely of the vessel and update latest information with our clients until the container deliver safely. 

In the previous article, we know that silicon steel can be divided into oriented silicon steel and non-oriented silicon steel, which have different uses. So what are the uses of these two similar silicon steel? Today’s article will tell you.   Use of Oriented Silicon Steel Oriented silicon steel, or CRGO, is an important soft magnetic material in the military and electronic industries, mainly used as high-frequency transformers, high-power magnetic amplifiers, pulse generators, general yoke coils, inductors, storage and memory components, switches and control components, magnetic shielding, and transformers operating under vibration and radiation conditions. Compared with other materials such as ferrite and amorphous materials, the iron core can be made very small due to the high saturation magnetic induction and high magnetic permeability of the 3% Si-Fe thin strip. Because it is a cold-rolled strip, it has a smooth surface, small differences between the same plates, good plate shape, and good processing performance. It can be made into iron cores of various shapes and specifications such as CD type, ring type, and rectangular type. It has a wide range of applicationsand wide frequency range (50H-20KH). Transformer made of CRGO   Use of Non-oriented Silicon Steel Non-oriented silicon steel is mainly used in motors: Gap motors (water pumps) mainly use cold-rolled, non-oriented, uncoated silicon steel. Motors for electric welding machines are divided into DC motors and AC motors. DC motors can use uncoated cold-rolled silicon steel, and AC motors mainly use coated 600 non-oriented silicon steel. Air compressor, and pneumatic pump motors can also use uncoated cold-rolled silicon steel. The micro motors used in small household appliances mainly use non-oriented 470. Most of the motor used in CNC machine tools is 470. Motors for air conditioning compressors mainly use 600, 800, 1000, and 1300 silicon steel.   Moter core made of CRNGO Silicon steel occupies a very important position in electrification construction. In a sense, the amount of silicon steel sheets used in a country can measure the degree of electrification in the country. Therefore, in the long run, electrical steel has great development prospects.

Motors are designed to provide precise control over speed and direction, making them ideal for a wide range of applications. Using the suitable servo motor to develop an energy-saving solution for production, the power saving could reach at least 30%. A few factors are needed to take into consideration when it comes to customize your own servo motors: Servo Motor Nameplate 1. Determine the torque, power and speed requirements of your application. Determine the voltage and current requirements for the servo motor. Decide on the rotor type: Permanent magnet surface mount rotor or Permanent magnet embedded rotor. Choose a motor that can be supplied with the appropriate power source. This will help narrow down the selection of servo motors that are powerful enough to handle the workload. 2. Consider the environment or the using occasion such as equipment where the servo motor will be used. Operating temperature, humidity, and other environmental factors should be taken into consideration. Some motors are optimized for harsh industrial environments, while others are designed for more delicate laboratory settings. 3. Since protection level of servo motors is important, choose those with robust construction and high reliability. The motor's durability and performance are important factors to consider, especially if it is used in demanding applications that require it to operate continuously under heavy loads. 4. Decide on the cooling method: air cooling/ liquid cooling/ natural cooling. 5. Evaluate the control mechanisms and feedback systems of different servo motor options: Whether encoder is needed and which encoder type is appropriate? Whether matching driver of the servo motor is needed? resolver or other feedback device to control the position of the servo motor.Some motors have built-in motion control capabilities that can simplify system integration and improve performance. 6. Check the compatibility with the other components of your system. The servo motor you select must be compatible with the rest of your system, including the controller, power supply, and cabling.  7. Confirm on the size and weight: Consider the size and weight of the servo motor for your application. Choose a servo motor size that will fit within the available space. 8. Determine the cost of different servo motors and compare them against other factors such as performance, reliability, and compatibility. Remember that the cheapest option may not necessarily be the best option for your production needs.