1650°C Heat Treatment in an Oxygen-Free Environment
Oxygen Free Vacuum Annealing Furnace is designed for high-temperature sintering and heat treatment under oxygen-free vacuum conditions.
The furnace uses a round external body and square internal working space. This structure combines the pressure resistance required for vacuum operation with a practical square loading chamber.
Molybdenum disilicide heating elements are used for direct heating, allowing the furnace to reach an operating temperature of 1650°C.
Compared with a conventional 1100°C resistance-wire vacuum annealing furnace, this system provides a higher temperature range and is intended for ceramic sintering, high-temperature metal annealing, and materials that are sensitive to oxygen during thermal treatment.
Alumina Fiber Insulation and Three Chamber Sizes
Ceramic alumina fiber is used as the furnace insulation material.
The fiber structure provides high-temperature thermal insulation and supports the cleanliness requirements of the furnace chamber.
Three chamber sizes are available:
400 × 400 × 400 mm, 500 × 500 × 500 mm, and 600 × 600 × 600 mm.
Their corresponding rated powers are 20 kW, 35 kW, and 48 kW.
All models use a rated voltage of 380 V.
The operating temperature is 1650°C, and the vacuum range is listed from -0.1 MPa to 6.67 × 10⁻⁴ Pa.
When selecting an Oxygen Free Vacuum Annealing Furnace, chamber volume and vacuum configuration should be matched with the actual batch size and thermal process.
Applications Requiring High Temperature and Reduced Oxidation
The equipment can be used for metal annealing, ceramic sintering, vacuum melting, degassing of electric-vacuum components, metal brazing, and ceramic-to-metal sealing.
The oxygen-free working environment helps reduce oxidation during high-temperature processing.
For this type of furnace, buyers should confirm more than the target temperature. Workpiece volatilization and outgassing at high temperature, required vacuum level, process atmosphere, holding time, and cooling method should all be discussed before configuration is finalized.
These process factors can affect the choice of vacuum system and furnace insulation structure.
Oxygen Free Vacuum Annealing Furnace is therefore more suitable for projects where the high-temperature process environment is a central part of equipment selection.
Custom Furnace Linings and Inspection Support
Nengcheng Crystal produces high-purity alumina fiber cotton, fiber boards, and vacuum-formed products that can be used in furnace insulation systems.
The company can manufacture furnace liners, insulation covers, flame-shield components, and other parts according to equipment drawings.
Technical staff can discuss the appropriate insulation material grade and installation structure for 1650°C operating conditions.
Samples can be supplied before bulk production where required. Customized production normally takes 20–45 days.
Photos or videos can be provided during manufacturing. Products are normally inspected before packaging, and third-party inspection is accepted. Dedicated personnel also continue after-sales communication for installation support, replacement parts, and later maintenance requirements.
Product Specifications
|
Parameter |
Specification |
|
Operating Temperature |
1650°C |
|
Furnace Chamber Size |
400 × 400 × 400, 500 × 500 × 500, 600 × 600 × 600 mm |
|
Rated Power |
20 kW, 35 kW, 48 kW |
|
Voltage / Heating Element |
380 V; molybdenum disilicide rod |
|
Vacuum Range |
-0.1 MPa to 6.67 × 10⁻⁴ Pa |
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