Jiangyin Centersky Electrical Appliance Co., Ltd

  Jiangyin Centersky established in 2000. With good support our customers, every year we increased 10-15 types of moulds for EI lamination and cutting lamination. This year our additional moulds for silicon steel EI lamination and cutting lamination as follows: Single phase: EI 30, EI 42, EI 84 with tungsten steel, EI 54 and etc. Thre phase: 3PEI-15 and etc. More types of molds, more demand from customers. （source:https://www.ei-lamination.com/improving-technology-and-increasing-many-types-of-molds/）

  We use ‘E’ and ‘I’ shape silicon steel lamination to make the core of the shell-type transformer. Which are created by using electrical steel laminations. Silicon Steel, also known as electrical steel, is steel with silicon added to it. Adding silicon to steel increases its electrical resistance, improves the ability of magnetic fields to penetrate it, and reduces the steel’s hysteresis loss. Shell type transformers are mainly used for low voltage applications and are very often used in low voltage power circuits as well as in electronic circuits. These transformers are also used to optimize the expenditure of a circuit since these transformers have square or rectangular cross-sectional core which costs less. (source:https://www.ei-lamination.com/shell-type-transformer-core/)

  For the iron core of the transformer, a 0.35 mm and 0.5mm thick cold-rolled silicon steel sheet is generally selected. According to the required iron core size, it is cut into rectangle lamination, and then overlapped into a “日” shape or “口” shape, or directly Choose standard EI lamination to overlap into “日” shape. From a logical point of view, if in order to reduce the eddy current, the thinner the thickness of the silicon steel sheet, the narrower the spliced strips. The better the effect. This reduces the eddy current loss, reduces the temperature rise, and saves silicon steel sheet materials. However, when making silicon steel sheet iron cores, it is not only from the above-mentioned favorable factors. Because the iron core is made in that way, it will greatly increase The working hours also reduce the effective cross section of the r core. Therefore, when using silicon steel sheets to make transformer cores, it is necessary to weigh the pros and cons from the ...

Cutting strip lamination cores are widely used in the manufacturing of inductors and huge size transformers. We cutting strip  ei lamination cores with grain oriented and not oriented material, from 0.35mm thickness to 0.50mm thickness. The width range (a) from 20mm to 300mm and length (b) from 20mm to 3000mm, to meet 99% industry requirements of our clients. In the actual process application, it can also replace the standard (3UI) three phase lamination, or a larger model of (3UI) three phase lamination, so as to achieve the effect of assembling without opening the new mold, which greatly saves the manufacturing cost of the process costs. (source:https://www.ei-lamination.com/cutting-strip-lamination-cores/)

3UI lamination cores are used in the manufacturing of three-phase transformers. In transformers with 3 UI lamination cores, each of the three ei lamination core arms bears a coil body. In contrast to the EI sheets, the 3UI sheets cannot be welded since the joints of the E and I sheets are within the coil body. The E and I sheets therefore have to be nested reciprocally during transformer manufacturing. As a result, either one or multiple identical sheets are slid in from one side of the coil body. Nesting machines are available for the nesting of 3UI sheets, which can significantly reduce manufacturing times. (source:https://www.ei-lamination.com/3-phase-3ui-lamination-cores/)

Commonly used transformer cores are generally made of silicon steel sheet s. Silicon steel is a kind of silicon (silicon is also called silicon) steel, and its silicon content is 0.8 to 4.8%. The core of the transformer made of silicon steel is because silicon steel itself is a magnetic substance with strong magnetic permeability. In the energized coil, it can generate a large magnetic induction intensity, which can reduce the size of the transformer. We know that the actual transformer always works in AC state, and the power loss is not only in the resistance of the coil, but also in the iron core under the alternating current magnetization. The power loss in the iron core is usually called “iron loss”. The iron loss is caused by two reasons, one is “hysteresis loss” and the other is “eddy current loss”. Used as the iron core of the transformer, cold-rolled silicon steel sheets of 0.5mm and 0.35mm thickness are generally selected. According to the size of the iron core...

Every year Jiangyin Centersky has a big demand for silicon steel raw material. For guaranteeing the good quality of transformer EI Lamination , we cooperated with WISCO and BAOSTEEL, WISCO and BAOSTEEL combined into one group in 2016 , they are the largest steel group in China, also very famous in the world. Our company has below raw materials in stock for manufacturing silicon steel EI lamination: CRNGO: 0.5mm thickness: 50WW800, 50WW600, 50WW470, 50WW350. 50AW290, 50AW270 and etc. 0.35mm thickness: 35WW440, 35WW400, 35WW300 and 35WW270 etc. CRGO: 0.3mm thickness: 30P130, 30P120 and etc. 0.35mm thickness: 35Q155 and etc. 0.27mm thickness, 0.23mm thickness. Based on adequate quantity of raw material and high efficient production, we can manufacture many types of silicon steel EI lamination in different grade material, which can satisfy with the demand of the customers fully. (source: https://www.ei-lamination.com/centerskys-appointed-silicon-steel-raw-material/)