Arc Evaporation PVD Equipment

The industrial cathodic arc evaporation PVD system utilizes low-voltage, high-current electrical arcs to vaporize solid cathode targets in a vacuum environment. This mechanism achieves a metal ionization rate exceeding 80%, ensuring high chemical bonding strength and substrate adhesion compared to thermal evaporation or standard magnetron sputtering.

Engineered for continuous multi-shift production, the system integrates a heavy-gauge stainless steel vacuum chamber, modular cathode steering assemblies, and a PLC-based automated process control architecture.

High Ionization Efficiency: Direct cathode vaporization produces fully ionized metallic plasma for dense, defect-controlled thin-film growth at moderate temperatures.

Magnetic Filtered Arc Option: Integrated electromagnetic steering coils minimize macroparticle (droplet) ejection to deliver smooth coating finishes for precision tooling.

Multi-Layer / Gradient Deposition: Synchronous multi-cathode operation enables the synthesis of graded transition layers (e.g., Ti/TiN/TiAlN) without breaking vacuum.

Closed-Loop Process Control: Real-time feedback loops regulate reactive gas flow (nitrogen, acetylene, oxygen) via high-precision mass flow controllers (MFCs) to maintain target partial pressures.

Pumping Stack: Primary roughing utilizes dual-stage rotary vane pumps backed by Roots blowers. High-vacuum attainment relies on high-throughput diffusion pumps or turbomolecular pumps.

Valves & Piping: Pneumatic angle valves and electropneumatic gate valves isolate chamber zones automatically. Manifolds use ISO/KF and CF flanged stainless steel tubing with silver-plated copper seals or Viton O-rings.

Leak Detection: Integrated helium mass spectrometer test ports enable diagnostics down to 10^-10 Pa*m^3/s.

Compatible Cathode Materials
Pure Metals: Ti, Cr, Al, Zr, Cu, Mo, W, Ag, TiAl alloys (e.g., 50/50 or 33/67 atomic ratios).

Compound Targets: TiC, CrC, WC.

Substrate Compatibility
Tool Steels: High-speed steels (M2, H13) and cemented carbides (WC-Co inserts).

Structural Alloys: Stainless steel, titanium alloys (TC4), and nickel-based superalloys.

Engineering Ceramics: Silicon nitride and alumina with conductive pre-treatment.

Cutting & Forming Tools: TiN, TiAlN, and AlTiN coatings on carbide drills and milling cutters. Achieves surface hardness >= 3000 HV and extends tool wear life by 200% - 400%.

Automotive Components: Anti-wear coatings on piston rings, tappets, and fuel injector needles. Lowers the coefficient of friction to 0.15 - 0.25 against steel.

Medical Implants: Biocompatible TiN and ZrN layers applied to orthopedic joints and dental abutments, verified via scratch adhesion testing (Critical Load Lc >= 70 N).

Molds & Dies: CrN or DLC coatings on plastic injection and stamping molds to eliminate adhesive wear and ease workpiece release.

Chamber Geometry: Vertical pit-type loading or horizontal front-loading configurations.

Source Layout: Custom cathode positioning tailored for 3D workpiece geometries (e.g., long extrusion dies or turbine blades).

Bias Generator Upgrades: Integration of high-power impulse magnetron sputtering (HIPIMS) hybrid modules.

Automation Integration: Robotic loading interfaces and automated fixture transfer rails for cleanroom environments.

Prior to Factory Acceptance Testing (FAT), systems undergo:

Vacuum Leak Testing: Helium mass spectrometer verification on all welds and seals.

Electrical Safety Verification: Insulation resistance, ground continuity, and interlock logic checks conforming to CE/UL standards.

Functional Burn-in: 72-hour continuous dry-run test of rotation drives, flow switches, and PLC communication.

Coating Test Run: Sample deposition verified via ball-crater film thickness measurement and Rockwell indentation scratch testing.

Site Preparation: Comprehensive utility layout documentation covering cooling water flow (> 15 m^3/h, 20 - 25 deg C), compressed air, ventilation, and electrical drops (380V/480V, 3-phase, 50/60 Hz).

Commissioning: On-site installation, vacuum calibration, and recipe optimization by senior process engineers.

Operator Training: Hands-on instruction covering routine maintenance, target replacement, and SCADA operation.

After-Sales Support: Remote diagnostic access via secure industrial VPN; guaranteed technical response within 24 hours.