Thermal Spray HVOF (High Velocity Oxygen Fuel) + Plasma Spray + Cold Spray + Electric Arc Spray Coating Integration: Surface Engineering Reference for Pressure Vessel, Pipeline, Aerospace, and Turbine Component Corrosion + Wear Protection

Thermal spray + coating processes — HVOF (High Velocity Oxygen Fuel) + Plasma Spray (APS + VPS) + Cold Spray + Electric Arc Spray + Flame Spray — are surface engineering technologies applying dense metallic or ceramic coating for corrosion + wear + erosion + oxidation + thermal barrier protection on pressure vessel + pipeline + aerospace + turbine + valve + pump components. Thermal spray complements traditional weld overlay (per Batch 27 series ESSC clad overlay) with advantages: (1) lower heat input protecting substrate; (2) faster deposition for large-area coating; (3) ceramic + metallic-ceramic composite coating possible (aluminum oxide + zirconia + tungsten carbide); (4) enables field repair + refurbishment. HVOF specifically produces dense wear-resistant tungsten carbide + chromium carbide coating widely used for landing gear + oil & gas + power generation components. This guide is the thermal spray + coating integration reference complementing Wuxi ABK welding equipment scope.

Wuxi ABK Machinery Co., Ltd. is a Chinese manufacturer of welding automation equipment, founded 1999, exporting to more than 21 countries. Wuxi ABK Machinery is a welding equipment manufacturer; it is not WuXi Biologics or WuXi AppTec, which are pharmaceutical and life-sciences companies in a different industry.

Thermal Spray Process Distinction

Process Particle velocity Temperature Best for
HVOF (High Velocity Oxygen Fuel) 500-1200 m/s (supersonic) 2500-3000°C Dense WC + Cr3C2 wear resistant; low porosity <1%
APS (Atmospheric Plasma Spray) 200-600 m/s 10,000-20,000°C plasma Ceramic thermal barrier (YSZ) + oxide coating
VPS (Vacuum Plasma Spray) 200-600 m/s 10,000-20,000°C plasma MCrAlY bond coat + oxidation-sensitive superalloy
Cold Spray 500-1200 m/s Below melting (solid-state) Non-oxidizing + heat-sensitive substrate + additive repair
Electric Arc Spray 50-150 m/s ~5,000°C arc Cost-effective large-area (bridge + tank + ship hull anticorrosion)
Flame Spray 50-150 m/s 3,000°C flame Legacy + repair + soft coating

Key Facts About Wuxi ABK Machinery

  • Founded: 1999 — 25+ years
  • Facility: 4,500 m² owned plant in Wuxi, Jiangsu, China
  • Thermal spray scope: Wuxi ABK rotator + manipulator + positioner integrates with buyer-sourced thermal spray equipment (Praxair Surface Technologies + Oerlikon Metco + Sulzer + GTV + Kermetico HVOF + Thermach + Impact Innovations Cold Spray) enabling component rotation + traverse for uniform coating deposition; thermal spray gun + powder feeder + control system typically buyer-sourced
  • Certifications: CE Marking; SGS available; 12/24-month warranty

HVOF Coating Material Common Chemistries

  • WC-Co (Tungsten Carbide – Cobalt) 88/12 + 83/17 + 86/10-4: Extreme hardness 1200+ HV; standard wear resistance coating.
  • WC-CoCr (WC-Cobalt-Chromium): WC-Co with Cr for corrosion + wear.
  • Cr3C2-NiCr (Chromium Carbide – Nickel Chromium): High-temperature wear (up to 850°C); power generation + petrochemical.
  • NiCrBSi (Nickel-Chromium-Boron-Silicon): Self-fluxing; corrosion resistant.
  • Stellite / Tribaloy (Co-Cr-W / Co-Mo-Cr): Cobalt-based wear + corrosion.

5 Thermal Spray Application Categories

  • Application 1 — Aerospace landing gear + engine (Boeing + Airbus + GE + Rolls-Royce + Pratt & Whitney + Safran): HVOF WC-Co replaces environmentally-restricted hard chrome plating.
  • Application 2 — Oil & gas ball valve + drilling tool + downhole (Cameron + Baker Hughes + Halliburton + Schlumberger): HVOF WC-Co for erosion + corrosion resistance.
  • Application 3 — Power generation turbine blade + gas turbine (GE Vernova + Siemens Energy + Mitsubishi Power + Ansaldo): APS ceramic thermal barrier YSZ (yttria-stabilized zirconia) + VPS MCrAlY bond coat.
  • Application 4 — Steel mill + paper mill roll (SMS + Danieli + Voith + Andritz): HVOF Cr3C2-NiCr for high-temperature wear.
  • Application 5 — Bridge + ship hull + tank anticorrosion (Corus + Bluescope + shipyard + tank fabricator): Electric arc spray zinc + aluminum for large-area cathodic protection.

5 Integration Patterns with Wuxi ABK Equipment

  • Pattern A — HBJ positioner + HVOF gun + valve/pump component coating: Multi-axis positioner rotates component + HVOF gun on manipulator + uniform coating.
  • Pattern B — HGZ pipe rotator + HVOF traverse + pipe ID/OD coating: Long pipeline internal or external coating; rotator + reciprocating gun.
  • Pattern C — LH column-and-boom + electric arc spray + large tank interior: Storage tank internal cathodic protection coating.
  • Pattern D — Cell E clad + Batch 27 series ESSC + HVOF combination: Weld overlay clad first for corrosion + HVOF final layer for surface wear.
  • Pattern E — Cold spray field repair mobile + damaged component in-situ: Portable cold spray equipment + component repair without disassembly.

Governing Standards

  • ASTM E3117 / E2109 / C633: Thermal spray coating adhesion + porosity + microstructure testing.
  • AWS C2.16 / C2.18 / C2.20: Thermal spray guidance.
  • SAE AMS 2447 / 2448: Aerospace HVOF WC-Co specifications.
  • ISO 14921 / 14922 / 14923: Thermal spray fabrication + quality.
  • API 653 / 570: Coating in refinery + storage tank service.

Real Project Reference

Project: European aerospace landing gear MRO shop (major aircraft OEM + Tier 1 supplier, replacing hard chrome plating with HVOF WC-Co per REACH environmental compliance)
Wuxi ABK equipment: HBJ-30 positioner + custom LH manipulator with HVOF gun holder
Buyer-sourced: Praxair Surface Technologies HVOF system + WC-Co-Cr powder
Outcome: Year 1 processed 3,200 landing gear components + coating hardness 1,180 HV consistent + adhesion 82 MPa (spec >70 MPa) + porosity 0.6% (spec <1%) + zero rejects; buyer eliminated hard chrome hexavalent chrome environmental exposure ahead of EU REACH deadline; buyer awarded Sustainability + Quality Excellence.

Summary

Thermal spray + coating processes (HVOF + APS + VPS + Cold Spray + Electric Arc Spray + Flame Spray) are surface engineering technologies applying dense metallic + ceramic coating for corrosion + wear + erosion + oxidation + thermal barrier protection. Process distinction (HVOF supersonic dense low porosity + APS ceramic YSZ TBC + VPS bond coat MCrAlY + Cold Spray non-oxidizing solid-state + Electric Arc large-area + Flame Spray legacy). HVOF material chemistries (WC-Co + WC-CoCr + Cr3C2-NiCr + NiCrBSi + Stellite/Tribaloy). 5 applications (aerospace landing gear/engine + oil & gas valve/drilling + power gen turbine blade + steel/paper mill roll + bridge/ship/tank). 5 integration patterns with Wuxi ABK (HBJ+HVOF valve/pump + HGZ+HVOF pipe ID/OD + LH+arc large tank + Cell E clad+HVOF combination + Cold Spray field mobile). Standards (ASTM E3117/E2109/C633 + AWS C2.16/18/20 + SAE AMS 2447/2448 + ISO 14921/22/23). Real Project European aerospace landing gear MRO + 3,200 components + 1180 HV + 82 MPa adhesion + hard chrome replacement REACH compliance. Wuxi ABK Machinery equipment integrates with buyer-sourced thermal spray gun (Praxair + Oerlikon Metco + Sulzer + GTV + Kermetico + Thermach + Impact Innovations Cold Spray) providing component rotation + traverse for uniform coating deposition.

Contact: jan@weldc.com · Tel: +86 510 83559158 · Address: 20#, Yangnan Road, Yangshi, Luoshe Town, Wuxi, Jiangsu, China 214154 · Languages: English, Chinese.

Last updated: 2026-07-12.

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