News
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Understanding GMAW (MIG) Wire Coding: The Key to Selecting the Right Filler Metal ⚙️
Understanding GMAW (MIG) Wire Coding: The Key to Selecting the Right Filler Metal Choosing the correct welding wire is not just about diameter—it’s about understanding the wire designation and selecting the right filler metal for the application. A proper wire selection directly impacts weld qua...Read more -
6 Major Welding Processes Explained – Which One Should You Choose
Not every welding process is suitable for every job. Selecting the right process depends on the material, thickness, productivity, weld quality, and application. Know the 6 Major Welding Processes: √ SMAW (Shielded Metal Arc Welding) ♦ Portable and economical ♦ Best for maintenance, construction,...Read more -
5 Critical Welding & Metallurgy Topics — Mechanical QA/QC
5 Critical Welding & Metallurgy Topics — Mechanical QA/QC 1. Austenitic SS — Sensitization & IGC Mechanism: Exposure to approximately 500–800°C promotes Cr₂₃C₆ chromium-carbide precipitation at grain boundaries. This produces a Cr-depleted zone adjacent to the grain boundary, reducing pas...Read more -
Types of Welding Defects
1) Crack: Crack is the most serious weld defect. They will eventually cause a weld to fail and welding contractors go to great lengths to avoid them. Welds are under continual internal stress from fatigue, bending, flexing and expansion/contraction and cracking occurs when the internal stresses e...Read more -
Welding Techniques — Technical & Short
Can you identify the welding technique just by looking at the bead pattern—and explain WHY the welder used it? 1. Stringer Bead Welding Technique: Straight bead, minimum/no transverse weaving. »Why: ↓ Heat input, distortion & sensitization risk; better control. »Process: SMAW / GTAW ...Read more -
WELDING CURRENT MATTERS MORE THAN YOU THINK!
Every quality weld begins with selecting the correct current type, polarity, and control mode. Even with the best welding procedure and skilled welder, an incorrect polarity can result in poor penetration, excessive spatter, lack of fusion, or distortion. ☆Key Takeaways: ♦AC (Alternating Current)...Read more -
Preheating Methods in Welding
Preheating is not just about applying heat before welding. It is a critical metallurgical control that directly impacts weld integrity, hydrogen control, and residual stress management. Below is the widely used preheating methods: 1 Propane Torch Heating Simple, portable, and commonly used in fi...Read more -
4 Main Types of Surfacing in Welding & Repair
Not all welding is about joining two components. In many industries, welding is also used to restore, protect, strengthen, and extend the service life of critical equipment. This is where surfacing techniques play a vital role. Selecting the right surfacing method can significantly improve equipm...Read more -
Types of Welding
1. Arc Welding (Electric Welding) Uses an electric arc to melt and join metals. Types include: SMAW (Shielded Metal Arc Welding / Stick Welding) GMAW (Gas Metal Arc Welding / MIG Welding) GTAW (Gas Tungsten Arc Welding / TIG Welding) FCAW (Flux-Cored Arc Welding) SAW (Submerged Arc Welding) ̵...Read more -
WELDING SYMBOLS USED IN PRESSURE VESSEL MANUFACTURING
In pressure vessel manufacturing, welding is not only about joining metal plates. Before a welder strikes the arc, the drawing already defines what type of weld to perform, where to apply it, how much to weld, and which process to follow — all through welding symbols. Why Welding Symbols Matter ...Read more -
Notice regarding the 2026 Dragon Boat Festival holiday
Dear Customers, As the traditional Chinese Dragon Boat Festival approaches, we would like to inform you of our upcoming holiday schedule. The Dragon Boat Festival (Duanwu Festival) is a significant traditional holiday in China with a history of over 2,000 years. It is celebrated to commemorate th...Read more -
WELDING OF CARBON STEEL
WELDING OF CARBON STEEL Welding of carbon steel is widely used in pressure vessels, pipelines, structures, fabrication industries, and power plants. During welding, rapid heating and cooling significantly change the microstructure and mechanical properties of steel. Understanding the Heat Affecte...Read more