タングステンオーバーレイ

あ tungsten overlay is a wear-resistant surface created by welding or cladding 炭化タングステン (トイレ) onto a steel substrate.
It is often compared with 炭化クロムオーバーレイ (CCO), which is another widely used hardfacing system based on chromium carbides (Cr₃C₂, Cr₇C₃).

Both systems are used to protect equipment from 摩耗, 侵食, そして影響, but they perform very differently.

Basic Material Differences

Wear Resistance Comparison

炭化タングステン is one of the hardest industrial materials available.
It provides exceptional resistance to:

• High-velocity particle erosion

• Severe scratching and cutting

• Slurry abrasion

炭化クロム に最適化されています:

• Bulk material abrasion

• 滑り摩耗

• Moderate impact

In typical bulk material handling systems, chromium carbide overlays provide the best cost-to-performance ratio, その間 tungsten carbide is used for extreme wear points.

Impact and Crack Resistance

Tungsten carbide is much harder, but also more brittle.
In applications with impact or vibration, chromium carbide performs more reliably.

代表的な用途

炭化タングステンオーバーレイ

• Sandblasting nozzles

• Oil and gas drilling tools

• Pump impellers

• Slurry valves

• Precision wear parts

炭化クロムオーバーレイ

• マイニングライナー

• コンベヤシュート

• ホッパー

• Cement plant equipment

• 石炭処理システム

Service Life Strategy

• Tungsten overlay is selected when maximum hardness そして erosion resistance 必要です.

• Chromium carbide overlay is selected when large surface areas そして cost-effective wear protection are needed.