Laminated cores play a crucial role in electrical equipment. They are made by stacking thin silicon steel sheets or ferroalloy sheets and insulating them from each other. Its main purpose is to reduce eddy current losses and improve equipment efficiency. Take a transformer as an example. When alternating magnetic flux passes through the core, an induced electromotive force is generated. If the core is solid, a large eddy current will be formed, resulting in energy loss and core heating. The laminated core divides the core into thin sheets, confining the eddy current within a narrow circuit. The net electromotive force of the circuit is small, and the resistivity of the thin sheet material is high, effectively reducing the eddy current loss. In addition, laminated iron cores can also improve the magnetic field distribution, enhance the electromagnetic performance of the equipment, increase operational stability, and extend the service life of the equipment. In an electric motor, laminated cores are equally important. It helps to reduce energy loss, improve motor efficiency, and enable the motor to convert electrical energy into mechanical energy more efficiently during operation. At the same time, it can also reduce the noise and vibration during the operation of the motor and improve the overall performance of the equipment. In an electric motor, laminated cores are equally important. It helps to reduce energy loss, improve motor efficiency, and enable the motor to convert electrical energy into mechanical energy more efficiently during operation. At the same time, it can also reduce the noise and vibration during the operation of the motor and improve the overall performance of the equipment.

As an important type of electrical steel, silicon steel plays a critical role in the power industry. In recent years, China's silicon steel industry has made remarkable progress and emerged as a leader in the global market. This article introduces three technological breakthroughs in the rise of China's silicon steel industry, showcasing the outstanding contributions of Chinese electrical steel manufacturers and producers in technological innovation. First Technological Breakthrough: Development and Production of High Magnetic Induction Silicon SteelChinese electrical steel manufacturers actively engage in the research, development, and production of high magnetic induction silicon steel to meet the growing demand. High magnetic induction silicon steel exhibits higher magnetic induction strength and lower iron losses, effectively reducing energy loss in power equipment. By adopting advanced production techniques and precise alloy design, Chinese electrical steel manufacturers have achieved breakthrough results, elevating the magnetic properties of silicon steel to new heights. Second Technological Breakthrough: Promotion and Application of Amorphous Silicon SteelAmorphous silicon steel, as a novel silicon steel material, features extremely low hysteresis losses and iron losses, offering higher operational efficiency and reduced energy consumption. Chinese electrical steel producers promote the application of amorphous silicon steel by introducing advanced production lines and manufacturing processes, effectively improving the quality and performance of silicon steel. Amorphous silicon steel has been widely employed in power equipment such as transformers, making significant contributions to the efficient operation of China's power industry. Third Technological Breakthrough: Innovative Manufacturing Processes for Thin-Gauge Silicon SteelThin-gauge silicon steel holds immense potential for applications in the power industry, but its manufacturing process is relatively complex and imposes high requirements on production technology and equipment. Chinese silicon steel manufacturers have successfully developed efficient manufacturing technologies for thin-gauge silicon steel through continuous innovation and process improvement. These technological innovations not only enhance the production efficiency and quality of thin-gauge silicon steel but also reduce production costs, providing users with more competitive product options. With the continuous development and innovation in China's silicon steel industry, Chinese electrical steel manufacturers and producers have achieved tremendous technological breakthroughs. The promotion and application of high magnetic induction silicon steel, amorphous silicon steel, and thin-gauge silicon steel have provided robust support for the development of the power industry and energy efficiency improvement. The Chinese silicon steel industry will continue to strive for technological innovation and development, making even greater contributions to the prosperity of the global electrical steel market.

Transformer core plays a crucial role in the efficient and reliable transmission of electrical power. As a key component, it provides a low reluctance path for the magnetic flux generated by the primary winding to be transferred to the secondary winding. Among various materials used for transformer cores, oriented silicon steel, also known as CRGO (Cold-Rolled Grain-Oriented) silicon steel or electrical steel, stands out for its exceptional magnetic properties and widespread application in different power ratings of transformers. CRGO Silicon Steel: A Superior Core Material: CRGO silicon steel is specifically engineered to exhibit grain orientation, enabling it to maximize its magnetic properties when subjected to an alternating magnetic field. The manufacturing process involves a controlled cold rolling technique that aligns the crystal grains within the steel in a specific direction. This grain orientation reduces the occurrence of magnetic domains and minimizes hysteresis losses and eddy current losses, making CRGO silicon steel the preferred choice for transformer cores. Applications in Different Power Ratings: Low-Power Transformers:In low-power transformers, such as those used in residential and small-scale commercial applications, CRGO silicon steel is utilized to enhance energy efficiency. The material's low core losses and high magnetic permeability contribute to reduced power wastage and improved voltage regulation, ensuring optimum performance in household appliances, lighting systems, and electronic devices. Medium-Power Transformers:Medium-power transformers, commonly employed in industrial settings and power distribution networks, require reliable and efficient core materials. CRGO silicon steel offers excellent magnetic properties at intermediate power ratings, enabling enhanced energy transmission and minimal power losses. These transformers find application in areas such as manufacturing facilities, commercial buildings, and utility substations. High-Power Transformers:For high-power transformers, such as those used in large-scale power generation and transmission systems, CRGO silicon steel provides superior performance. With its advanced grain orientation and optimized magnetic characteristics, it minimizes core losses and enhances efficiency, ensuring reliable power transmission over long distances. These high-power transformers are crucial components of electrical grids, enabling the efficient distribution of electricity to cities, industries, and infrastructure projects.     The selection of the core material plays a vital role in the performance and efficiency of transformers. CRGO silicon steel, also known as oriented silicon steel or electrical steel, stands out as an ideal choice for transformer cores across different power ratings. Its unique grain orientation and magnetic properties significantly reduce energy losses, ensuring optimal power transmission. Whether in low-power, medium-power, or high-power transformers, CRGO silicon steel demonstrates its superiority in enhancing efficiency and reliability in the transmission and distribution of electrical energy.

Transformers are essential electrical devices that facilitate the efficient transmission and distribution of electrical energy. At the heart of every transformer lies its core, which plays a crucial role in transforming voltage levels. One commonly employed technique in constructing transformer cores is lamination. In this article, we will explore why lamination is used and delve into its significance in the design and performance of transformer cores.  Why COGO Lamination? The primary reason for incorporating CRGO laminations in transformer cores is to mitigate energy losses caused by magnetic characteristics while maintaining optimal performance. Laminated cores consist of numerous thin layers of a magnetic material, typically silicon steel, stacked together and insulated from each other. This technique introduces several benefits that enhance the efficiency and reliability of transformers.   Reducing Eddy Current Losses: When an alternating current flows through the primary winding of a transformer, it induces a magnetic field in the core. However, this varying magnetic field can induce small circulating currents, known as eddy currents, within the solid core material. These eddy currents generate heat and consume a significant amount of energy, leading to undesirable energy losses. Lamination effectively addresses this issue by breaking up the solid core into thin insulated layers, thus interrupting the flow of eddy currents and minimizing energy dissipation as a result.     Controlling Magnetic Flux: Lamination also helps in controlling the flow of magnetic flux within the transformer core. By dividing the core into multiple layers, each with its own magnetic path, laminations ensure that the magnetic flux follows a desired and efficient route. This controlled flux path minimizes magnetic leakage and maximizes the coupling between the primary and secondary windings, leading to improved transformer performance.   Reducing Hysteresis Losses: Hysteresis loss occurs when the magnetic field within the core material repeatedly reverses its polarity with each alternating cycle. By using laminations, the size of the hysteresis loop, and thus the associated hysteresis losses, can be significantly reduced. This is achieved by carefully selecting the thickness and composition of the laminations, optimizing the magnetic properties and reducing energy losses within the core. SO… Lamination is a fundamental technique employed in transformer core design to enhance efficiency and reduce energy losses. By effectively controlling eddy currents, magnetic flux, and hysteresis losses, laminated transformer cores ensure optimal performance and improve the overall energy efficiency of electrical power distribution systems. As technologies continue to advance, the use of advanced laminated materials and designs will further contribute to the evolution of efficient and sustainable transformers.

Transformer is a device that converts AC voltage, current and impedance. When AC current flows through the primary coil, AC magnetic flux is generated in the iron core (or magnetic core), causing voltage (or current) to be induced in the secondary coil. A transformer consists of an iron core (or magnetic core) and a coil. The transformer core is the main magnetic circuit of the coupled magnetic flux in the transformer. Working principle of transformer core The function of the core of the transformer is to form a magnetic circuit of coupling flux with very small reluctance. Because the reluctance is very small, the working efficiency of the transformer is greatly improved. Broadly speaking, transformers are divided according to the coupling material between coils, including air core transformers, magnetic core transformers, and iron core transformers. Air core transformers and magnetic core transformers are mostly used in high frequency electronic circuits. Because silicon steel itself is a material with strong magnetic permeability, it can produce greater magnetic induction intensity in the energized coil, which can reduce the size of the transformer and improve the working efficiency of the transformer. The characteristic of silicon steel is that it has the highest saturation magnetic induction intensity (above 2.0T) among commonly used soft magnetic materials. Therefore, when used as a transformer core, it can work at a very high operating point (such as an operating magnetic induction value of 1.5T). However, silicon steel also has the largest iron loss among commonly used soft magnetic materials. In order to prevent the iron core from heating due to excessive losses, its frequency of use is not high and it generally can only work below 20KHz. Therefore, the frequency of power circuits is mostly Around 50Hz. Our New-build transformer core Shunge Company not only provides first-hand silicon steel sheet raw materials, but also can customize finished transformer cores for customers. If you have any needs, please contact us.

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.

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.