The heyu vacuum tempering furnace for mold steel is a horizontal, single-chamber unit designed for vacuum tempering of tool steel, die steel, high-speed steel, ultra-high-strength steel, and titanium alloy after vacuum quenching or solution treatment, and it also handles recrystallization annealing and vacuum aging of non-ferrous metals. Wide nickel-chromium alloy heating strips combined with multi-layer stainless steel screens hold temperature uniformity tight, while a built-in heat exchanger with air-cooled rapid cooling eliminates temper brittleness. A convection heating device guarantees uniform temperature even at low operating ranges, and SUS304 or 310S inner heat shields are available.
We release a sample or prototype for your confirmation before mass production, walk you through pre-sales, in-production, and after-sales service, and deliver standard chambers on a 45-day cycle. After quench, mold steel comes back out bright and free of temper brittleness, because the built-in heat exchanger with rapid cooling stops the parts in the brittle range while the convection heater keeps the low-temperature hold even through the load.
|
Parameter |
Value |
|
Maximum temperature |
750 °C |
|
Temperature uniformity |
±5 °C |
|
Ultimate vacuum |
4 × 10⁻³ / 6 × 10⁻⁴ Pa |
|
Pressure rise rate |
≤ 0.26 / ≤ 0.67 Pa/h |
|
Gas cooling pressure |
2 bar |
|
Loading capacity |
75 – 1500 kg |
|
Heating power |
45 – 240 kW |
|
Effective heating zone |
300×300×500 to 900×900×1500 mm (W×H×L) |
Application Fields
H13 and D2 mold steel post-quench tempering
Vacuum tempering prevents surface oxidation and toughens dies while retaining hardness at tempering peaks.
High-speed steel cutting tools
Controlled low-temperature convection heating supports secondary-hardening tempering cycles without temperature lag.
Titanium alloy aging
High-vacuum tempering avoids alpha-case formation on titanium components.
Customization
Inner shield material (SUS304 or 310S), convection heating on/off, loading size, and cooling-rate profile are configured to your post-quench process.
Packaging & Transportation
We support EXW and FOB terms. Equipment is packaged according to international export requirements based on the nature of the actual goods. For large equipment DDP is not available at this time; DDP can be provided for accessories and spare parts.
FAQ
Q: Can you provide a prototype/sample before mass production?
A: Yes, we can provide a sample or prototype for your confirmation before starting mass production.
Q: What are your pre-sales, sales, and after-sales service processes?
A: During pre-sales, we customize equipment specifications based on customer requirements; during production, we provide regular progress feedback; and for after-sales, we provide dedicated follow-up and a fixed warranty period.
Q: What is the delivery time for standard products?
A: The production cycle for standard products is typically 45 days.
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