Hydraulic Filter Selection, Installation & Types: A Technical Guide for Industrial Fluid Systems
In hydraulic systems—especially in steel mills, forging presses, rolling mills, and heavy machinery—hydraulic filters are critical components that ensure system reliability, longevity, and performance. Contaminants such as metal particles, dust, fiber, and sludge can cause valve sticking, pump wear, seal failure, and catastrophic component damage. This article provides a technically accurate, step-by-step overview of hydraulic […]
Meeting System in Steel Companies
The meeting systems of various steel companies are generally similar, while each also has its own distinctive features. An effective meeting system is a crucial guarantee for the efficient operation of a steel company. Today, we will discuss the typical meeting system for your reference. I. Definition of a Meeting A meeting is convened to […]
HANI to Showcase Cutting-Edge Electric Arc Furnaces and Continuous Casting Solutions at the 139th Canton Fair
Guangzhou, China – March 2026 – HANI is proud to announce its participation in the 139th China Import and Export Fair (Canton Fair), taking place from April 15–19, 2026, at the China Import and Export Fair Complex in Guangzhou. Visitors are cordially invited to visit Booth E16, Hall 19.1, Processing Machinery Area (Zone D) to explore our latest innovations in electric […]
Sintered Ore Tumbler Strength Test Method – Essential Quality Control for Efficient Steelmaking
In the steel production process, especially in short-process steelmaking and electric arc furnace (EAF) operations, the quality of raw materials directly impacts energy efficiency, yield, and final product performance. Among these, sintered ore tumbler strength is a critical physical indicator that reflects the mechanical durability of sinter during handling and blast furnace charging. Accurate testing ensures optimal furnace operation and […]
BOF vs EAF vs Open Hearth & Secondary Refining Processes (AOD, LF, VD)
In the modern steel industry, understanding the different steelmaking processes is essential for anyone involved in metallurgy, manufacturing, or sustainable industrial development. This article breaks down the key differences between major primary steelmaking furnaces — Basic Oxygen Furnace (BOF), Electric Arc Furnace (EAF), and Open Hearth Furnace (OHF) — as well as critical secondary refining units like AOD, LF, and VD/VOD, helping you grasp […]
Can Stainless Steel Be “Poisoned”? The Hidden Danger of Chloride and Fluoride Ions
Stainless Steel Isn’t Invincible—It Can Be “Poisoned” by Halogen Ions In chemical processing, oil & gas, and wastewater treatment, it’s not uncommon for brand-new stainless steel equipment to fail within weeks—or even days—of commissioning. The design is sound, the grade was specified correctly, yet leaks appear unexpectedly. The culprit? Trace amounts of halogen ions—especially chloride (Cl⁻) […]
Why Duplex Stainless Steels Should Not Be Used as Heat-Resistant Alloys – The 475°C Embrittlement Explained
The Hidden Danger of Using Duplex Stainless Steel in High-Temperature Applications Duplex stainless steels—such as UNS S32205 (2205) and UNS S32750 (2507)—are widely praised for their excellent combination of strength, toughness, and resistance to chloride-induced stress corrosion cracking. These properties make them ideal for offshore platforms, chemical processing equipment, and desalination plants operating near ambient […]
Best Practices for Ladle Preheating: Temperature Control, Common Issues, and Prevention Strategies
Why Ladle Preheating Matters in Steel Production Ladle preheating (or “baking”) is a crucial step in modern steelmaking—whether for newly lined ladles, cold-repaired units, or (turnaround) ladles returning from service. The primary goal? To safely remove free water, chemically bound moisture, and crystalline water from refractory linings before exposure to molten steel. Failure to follow a controlled […]
Application of ladle sliding nozzle mechanism in steel mills
In modern steelmaking, precision and control are paramount. The ability to accurately regulate the flow of molten steel from the ladle to the tundish is a critical step that directly impacts steel quality, operational safety, and overall efficiency. This is where the ladle sliding nozzle mechanism, also known as a ladle slide gate, plays an […]
The role of aluminum in steel
Aluminum’s critical roles in steel: deoxidation, grain refinement via AlN, ferrite stabilization, enhanced toughness, and surface hardening for nitriding and high-temperature applications.