BOZE CNC Ti | Surface Treatment

PVD coating with closed-loop gas mass-flow (Delta-E <=1.0)

PVD coating with closed-loop gas mass-flow (Delta-E <=1.0) capability for titanium components

Grade 1, Grade 2, Grade 5 (Ti-6Al-4V), Grade 7, Grade 9, Grade 23 Common Grades
Tank: 1200 × 800 × 600 mm; all part sizes Thickness Range
+0.01 mm (seat) / +0.02 mm (stem) Cutting Tolerance
+0.01 mm (seat) / +0.02 mm (stem) Tolerance
Ra 0.2 µm (sealing surface) Surface Finish
Titanium Ball Valve Stem Titanium ECCS Valve Stem

What is PVD coating with closed-loop gas mass-flow (Delta-E <=1.0)?

PVD coating with closed-loop gas mass-flow (Delta-E <=1.0) capability for titanium components

Surface engineering capability for PVD coating with closed-loop gas mass-flow (Delta-E <=1.0), with process control, bath chemistry monitoring, and batch consistency validation.

Engineering Parameters & Capabilities

Titanium anodizing (AMS 2488) grows a controlled oxide layer through electrochemical conversion in an electrolyte bath. Type II produces interference colors (gold, blue, purple, green) for identification and cosmetics. Type III (hard anodizing) produces a thicker, abrasion-resistant oxide, specifically for valve. Precision valve for Oil & Gas present unique challenges: Seat leakage Class VI (ANSI FCI 70-2) requires lapped sealing surfaces. Stem straightness ±0.02 mm over 500 mm.

Parameter Specification
Coating Electrochemical oxide conversion; not a deposit
Thickness Type II: 0.5–5 µm / Type III: 5–25 µm
Colors Gold (15V), blue (40V), green (70V), purple (90V)

Engineering Capabilities & Limits

Surface engineering capability for PVD coating with closed-loop gas mass-flow (Delta-E <=1.0), with process control, bath chemistry monitoring, and batch consistency validation.

Hole Types Supported

N/A

Heat Control Measures

Electrolyte bath at 20–24°C (Type II) or –5–0°C (Type III). Voltage ramp programmed to prevent localized overheating and burning.

Flatness & Stress Relief

No dimensional change — surface conversion only. Pre-treatment finish is preserved through the process.

Tolerance

+0.01 mm (seat) / +0.02 mm (stem)

Typical Applications & Components

This process is used to manufacture the following titanium components.

Titanium Ball Valve Stem

Grade 2 CP-Ti Chemical Processing

Titanium ECCS Valve Stem

Grade 2 CP-Ti Energy

Secondary Operations & Downstream Processing

Enhance your component with our integrated downstream services:

Sealing

Hot water or nickel acetate sealing to close micro-porosity.

Laser Marking

Post-anodize laser marking for UDI or part ID on oxide layer.

Lapping (Seat)

Lapping (Seat) for pvd coating with closed-loop gas mass-flow (delta-e <=1.0) components.

Hydrostatic Test

Hydrostatic Test for pvd coating with closed-loop gas mass-flow (delta-e <=1.0) components.

Helium Leak Test

Helium Leak Test for pvd coating with closed-loop gas mass-flow (delta-e <=1.0) components.

Quality Assurance & Inspection

Inspection Items

  • PVD coating with closed-loop gas mass-flow (Delta-E <=1.0) specific dimensional verification (CMM / vision)
  • Material grade verification (PMI / OES spectrometer)

Quality Standards & Certifications

  • ISO 9001:2015 — Quality Management System
  • AS9100D — Aerospace Quality Management
  • ASTM B265 — Titanium Strip, Sheet, and Plate Standard

Frequently Asked Questions

What titanium grades are suitable for PVD coating with closed-loop gas mass-flow (Delta-E <=1.0)?
PVD coating with closed-loop gas mass-flow (Delta-E <=1.0) can be performed on Grade 1, Grade 2, Grade 5 (Ti-6Al-4V), Grade 7, and other grades. The specific grade selection depends on the required mechanical properties, corrosion resistance, and end-use application requirements.
What tolerances can be achieved with PVD coating with closed-loop gas mass-flow (Delta-E <=1.0)?
Typical achievable tolerances for PVD coating with closed-loop gas mass-flow (Delta-E <=1.0) are +0.01 mm (seat) / +0.02 mm (stem). Tighter tolerances may be possible depending on part geometry, material condition, and quantity. Our engineering team reviews each project to determine the optimal tolerance-cost balance.
What quality certifications apply to PVD coating with closed-loop gas mass-flow (Delta-E <=1.0)?
All PVD coating with closed-loop gas mass-flow (Delta-E <=1.0) operations are performed under ISO 9001:2015 — Quality Management System, AS9100D — Aerospace Quality Management, ASTM B265 — Titanium Strip, Sheet, and Plate Standard certified quality management systems. Full traceability documentation, material certifications (EN 10204 3.1), and inspection reports are provided with each shipment.
What is the typical lead time for PVD coating with closed-loop gas mass-flow (Delta-E <=1.0) projects?
Lead times for PVD coating with closed-loop gas mass-flow (Delta-E <=1.0) vary by complexity and quantity. Prototype quantities (1-10 units) can typically be completed in 3-7 business days. Production quantities require 15-25 business days. Rush orders are available for qualifying projects. Contact our sales team for a specific timeline.
Can you provide DFM feedback for my PVD coating with closed-loop gas mass-flow (Delta-E <=1.0) design?
Yes. We provide free Design for Manufacturability (DFM) analysis for all new projects. Simply upload your CAD file (STEP, DXF, or DWG format) and our engineering team will review your design and provide optimization suggestions within 24 hours.

Related Surface Treatment Capabilities

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Anodizing (AMS 2488)

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Cryogenic polishing for medical sonotrodes capability for titanium components

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Electrochemical polishing

Electrochemical polishing capability for titanium components

Electropolishing + Class 100 ultrasonic cleaning

Electropolishing + Class 100 ultrasonic cleaning capability for titanium components
About Boze Titanium Manufacturing Center

One Metal. One Focus. Infinite Precision.

Founded in 2011 in Baoji's Titanium Valley, BOZE Metal is dedicated exclusively to titanium — from raw material to precision engineering. AS9100D, ISO 13485 & ISO 9001 certified with 500+ clients across Aerospace, Medical & Motorsport industries, we deliver end-to-end precision titanium CNC machining with full material traceability from source to component.

Boze CNC Ti is the dedicated titanium manufacturing center of Baoji Boze Metal Products Co., Ltd.

AS9100D ISO 13485 ISO 9001 500+ Clients 15+ Years OEM/ODM
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