Obsession Over One Steel Sheet: 70 Years of China’s Grain-Oriented Silicon Steel Entrepreneurship
Forms the core of high-efficiency power transformers. China spent nearly 70 years overcoming technical blankness, equipment bottlenecks and foreign blockades to master full CRGO production. This timeline tracks three restart cycles, two equipment-driven bottlenecks, a 17-year research deadlock, WISCO’s No.1.7m mill import breakthrough, decades of technology digestion, and 2020s full industrial overtaking, with China now supplying over 70% of global GO steel output including cutting-edge laser-scribed ultra-thin grades.
China’s Transformer Industry: A Century from Import to World’s Largest Manufacturer
From Siemens’ first import in 1912 to the world’s most advanced UHV transformers today, discover the century-long journey that made China the global leader in transformer manufacturing.
Well-Known Global On-Load Tap Changer Brands: Who Powers the World’s Voltage Regulation?
The global on-load tap changer market is led by five manufacturers, each built on a different mix of history, technology, and regional strength. Here’s how Germany’s MR, China’s Huaming, Hitachi Energy, Bulgaria’s Elprom, and India’s CTR stack up.
Shipment of 1 Prefabricated Cabin & 3 Box-type Substations for Ningnan Photovoltaic Project
Zhongxin General has dispatched 1 prefabricated cabin and 3 SCB14-2000kVA box-type substations for the Ningnan photovoltaic project in Liangshan, Sichuan — heading to site ahead of grid connection at 10kV.
Global Grain-Oriented Silicon Steel Manufacturers: Who Supplies the World’s Transformer Cores?
Where does the silicon steel inside a transformer core actually come from? A country-by-country look at the world’s grain-oriented steel producers outside China — and what separates them.
China’s Grain-Oriented Silicon Steel Manufacturers, Capacity & Production Bases
Every transformer core starts as a coil of grain-oriented silicon steel long before it reaches a factory floor. We profile the nine Chinese mills that supply it — their capacity, production bases, and the domestic and export markets each one serves.
The History of Transformers: From Faraday’s Discovery to Modern China
From Faraday’s first induction ring to China’s modern factories, transformer history explains why oil-immersed and dry-type designs still serve different jobs today
From Silicon Steel to Solid Core: How We Build Every Transformer Core
A transformer’s core starts as flat silicon steel sheet. Here’s exactly how we cut, stack, clamp, varnish and bind it into a finished core.
Transformer Core History: From Wrought Iron to Amorphous Alloys
Every transformer core alive today carries over 140 years of trial and error inside it. This article traces that history — from the first laminated wrought-iron core in 1884 to hot-rolled and grain-oriented silicon steel, HiB grades, laser-scribed domains, and today’s amorphous and nanocrystalline alloys — and shows how each material and structural breakthrough cut core losses, and why it still matters when you’re specifying a transformer.