Dec 23, 2025 The gap between imported and domestic vacuum furnace heat treatment fixtures is concentrated in five core dimensions: material purity, process precision, service life stability, cost & service, and certification compatibility. Domestic products are accelerating to narrow the gap, yet a generation gap remains in high-end applications. Junteng Fanghu has formed differentiated advantages through "material customization + process adaptation + localized service".
I. Full-Dimensional Comparison of Core Differences (From Junteng Fanghu’s Perspective)
| Comparison Dimension | Imported Vacuum Furnace Heat Treatment Fixtures | Domestic Vacuum Heat Treatment Fixtures (Including Junteng Fanghu Alloy) | Key Impacts |
| Material & Purity | High-purity base materials (e.g., high-purity graphite, electronic-grade refractory metals), low-melting-point impurities ＜ 50ppm; stable surface emissivity (0.85–0.90), strict volatile control | Mainstream materials meet purity standards, but high-end base materials (e.g., high-purity molybdenum, single-crystal ceramics) still rely on imports; Junteng Fanghu controls low-melting-point impurities within 80ppm through purification processes, with surface treatment reaching high industry standards | Affects vacuum cleanliness and workpiece contamination risk; imported products are more suitable for carbon/impurity-sensitive scenarios such as titanium alloys and semiconductors |
| High-Temperature Performance Indicators | Creep deformation ＜ 0.2% at 1300–2200℃, temperature uniformity ±2–3℃, high dimensional stability for long-term use (500 furnace runs) | Performance close to imported products below 1200℃; creep deformation 0.5%–1.0% above 1300℃; Junteng Fanghu optimizes structural design to improve uniformity at 1200℃ to ±3–5℃, adapting to mid-to-high-end demands | Determines the precision and qualification rate of high-value workpieces (e.g., aerospace components) |
| Design & Manufacturing Process | Modular design, compatible with multiple process scripts; mature sealing and thermal field simulation, patent-intensive | General design-oriented, with improved complex customization capabilities; Junteng Fanghu offers integrated "material + structure + thermal field" customization and open process parameter interfaces | Imported products adapt to complex processes; domestic products respond more flexibly to localized customization needs |
| Service Life & Maintenance | Heat-resistant steel fixtures service life: 8–10 years; graphite tooling: 300–500 furnace runs; high accessory prices, response time 72+ hours | Heat-resistant steel fixture service life: 3–5 years; graphite tooling: 150–300 furnace runs; Junteng Fanghu extends service life to 5–8 years/200–350 furnace runs, with low accessory costs and on-site service within 48 hours | Domestic products have lower comprehensive maintenance costs and smaller downtime losses |
| Cost & Delivery | Purchase price 2–3 times that of domestic products; delivery cycle 3–6 months | Purchase price 30%–60% lower; Junteng Fanghu’s delivery cycle 45–60 days, with outstanding cost-effectiveness | Domestic products are more suitable for mass-production enterprises; imported products for R&D/high-value small-batch scenarios |
| Certification & Compliance | Comes with aerospace certifications such as AMS2750 and NADCAP, compatible with international standards | Some high-end products have passed aerospace certifications; Junteng Fanghu can assist customers with fixture adaptation and testing for aerospace certification | Affects market access to high-end fields such as aerospace and military industry |
II. Technical Breakdown: Root Causes of the Gap and Domestic Breakthroughs
1. Material System & Purity Control
2. High-Temperature Creep & Structural Design
3. Thermal Field & Uniformity Optimization
4. Service Life Extension Technology
III. Junteng Fanghu’s Differentiated Path
1. Material Customization: Precisely selects materials from heat-resistant steel, graphite, ceramics, and special alloys based on process temperature (≤1200℃/1300–1600℃/＞1600℃), workpiece carbon sensitivity, and cleanliness requirements.
2. Process Adaptation: Provides carbon-free tooling solutions for vacuum heat treatment of titanium alloys/nickel-based superalloys, strictly controlling carbon contamination.
3. Full-Lifecycle Service: Turnkey services from design, manufacturing, and testing to maintenance, reducing customers’ comprehensive costs.
IV. Selection Recommendations (Recommended by Junteng Fanghu’s Technical Team)
| Application Scenario | Priority Choice | Core Considerations |
| Aerospace titanium alloys/nickel-based superalloys (≤1200℃) | High-end domestic (e.g., Junteng Fanghu) | High cost-effectiveness, strong customization capabilities, meets certification requirements |
| Semiconductors/ultra-high-purity materials (＞1600℃, carbon-sensitive) | Imported + domestic auxiliary | Imported products ensure cleanliness; domestic products reduce costs for general processes |
| Fixtures dies/mid-temperature mass production (≤1000℃) | Domestic (e.g., Junteng Fanghu) | Low cost, convenient maintenance, fully matched performance |
Summary
Imported tooling/fixture still leads in ultra-high temperature, ultra-high cleanliness, and long-term stability, while domestic products are rapidly catching up in mid-to-high-end fields. Through material optimization, structural design, and localized service, Junteng Fanghu achieves a balance of "performance close to imported products, with better cost and delivery", adapting to most domestic high-value-added heat treatment needs.
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