vacuum tempering furnace

Vacuum Tempering Furnace

Working Zone:100×100×100 mm – 800×800×3000 mm (Customizable)

Chamber Configuration:Vertical, horizontal, or custom-designed structures

Control System:PLC with touchscreen interface

Safety Features:Over-temperature alarm, leakage protection, etc.

Atmosphere Control:Vacuum or optional controlled gas environment（N₂, Ar, H₂, etc.)

Advantages:ISO & CE certified, uniform heating, PLC control, energy-efficient, safe operation

Provides low-temperature treatment after quenching, enhancing toughness and relieving internal stresses. Perfect for dies, molds, and components requiring controlled tempering atmospheres.

Introduction

The vacuum tempering furnace is an advanced heat treatment solution designed for the stress relief and microstructure adjustment of hardened steel components. After quenching, tempering is a crucial step to reduce brittleness, enhance toughness, and achieve optimal mechanical properties. Operating in a vacuum environment ensures clean, oxidation-free surfaces and consistent treatment results—ideal for industries demanding precision and high performance.

Structure of Brother Furnace Vacuum Annealing Furnace

Furnace Chamber:

Lined with ceramic fiber insulation, featuring a heating zone made of either molybdenum sheets or graphite, selected based on specific application requirements.

Heating System:

Utilizes resistance heating elements such as heating wires, silicon carbide (SiC) rods, and molybdenum disilicide (MoSi₂). Optional molybdenum or graphite heaters are also available.

Vacuum System:

Composed of a combination of mechanical pump, diffusion pump, and/or turbomolecular pump, capable of achieving a high-vacuum environment.

Control System:

Equipped with PID or PLC control for precise temperature regulation;
Supports programmable temperature profiles, data logging, and data export;
Optional vacuum pressure monitoring is available.

Cooling System:

Standard configuration includes a water-cooled jacket.
An optional gas cooling system is available for accelerated cooling.

Key Features

High Vacuum Environment: Equipped with a mechanical pump and diffusion pump system, the furnace can reach an ultimate vacuum level of 7×10⁻³ Pa, preventing oxidation and contamination during the tempering process.
Precise Temperature Control: Uniform heating with multi-zone control and high-precision sensors enables temperature accuracy within ±5°C, ensuring consistent results.
Customizable Tempering Profiles: The PLC-based control system with touch-screen HMI allows programming and storage of multiple tempering cycles tailored to various materials.
Clean Surface Results: Vacuum tempering ensures bright, oxidation-free surfaces, eliminating the need for post-processing cleaning or grinding.
Energy Efficiency & Safety: High-efficiency insulation materials and intelligent control reduce energy consumption while providing safe, stable operation.