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Weld Metallogarphic Sample Preparation

In the industrial kingdom woven by steel and iron, welds never seek the spotlight, yet they hold the core power to prop up countless pieces of equipment and projects, truly deserving the name of invisible "life veins". From the steel structures of bridges spanning rivers, to the aero-engines soaring through the sky; from the shells of deep-sea submersibles exploring the abyss, to the core equipment of new energy power stations — every reliable connection owes its integrity to the precise empowerment of welds.

The value of welds is far more than just "joining metals". It represents the restructuring and symbiosis of metals within the high-temperature molten pool, demanding welders’ ultimate control over electric current and voltage, and relying more on the precise matching of welding materials and base metals. Those weld details imperceptible to the naked eye precisely define the safety boundaries and service life of products. It is the unwavering integrity of these inches-long welds that translates the precision and strength of industrial manufacturing into tangible reality, underpinning the steady advancement of critical sectors such as aerospace, rail transit, and energy infrastructure.

Below are the metallographic sample preparation parameters and metallographic effect appreciation for weld samples:

1️⃣  Grinding: MET-S P400

2️⃣  Fine Grinding: POS+9μm PD-WT

3️⃣  Rough Polishing: SC+3μm PD-WT

4️⃣  Final Polishing: ZN+SO-A539

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