seo@bonaregroup.com
Email Us
Vacuum Heat Treatment Furnace
Vacuum heat treatment furnace is a device that realizes metal heating, heat preservation and cooling in a vacuum environment, which also preventing oxidation and reducing impurities.
Brother furnace's vacuum heat treatment products are available in a variety of models, capable of treating stainless steel, mold steel, titanium alloys, and high-temperature alloys. They meet the demands of quenching, annealing, tempering, and normalizing processes, enhancing material hardness and toughness.
Our vacuum heat treatment services are widely used in aerospace, automotive, and mold manufacturing industries.
Brother Furnace
Application Industry of
Vacuum Heat Treatment Furnace
Vacuum heat treatment furnaces can cover multiple fields and demonstrate their cross-industry adaptability and practical value:
-
Precision Engineering
Used for heat treatment of miniature bearings, precision springs, and other precision mechanical parts, ensuring dimensional stability and high performance.
-
Automotive
Used for heat treatment, annealing, and tempering of steel and alloy gears, enhancing their durability and performance.
-
Metallurgy
Used for vacuum melting and refining of high-purity metals and alloys such as aluminum, titanium, and nickel, improving the material's density and mechanical properties.
-
Mold Manufacturing
Used for heat treatment of tool steels and carbides to increase hardness and wear resistance; in aerospace, enhances strength and durability of alloys, titanium, and composites.
Brother Furnace
Heat treatment materials of
Vacuum Heat Treatment Furnace
Aiming at the characteristics of various materials, the core advantage of the product is its compatible processing:
-
Stainless steel
-
Mold steel
-
High-speed steel
-
Bearing steel
-
Structural steel
-
Titanium and titanium alloys
-
Aluminum alloys
-
Copper alloys
-
Metal alloys
-
High-temperature alloys
-
Cemented carbide
-
Magnetic materials
-
Precision alloys
Brother Furnace
Heat Treatment Process Introduction
The following is a detailed introduction to the heat treatment process.
The heat treatment process mainly consists of "four fires".
Quenching, tempering, annealing and normalizing.
Here is some related knowledge between heat treatment processes.
-
1.Process relevance:
Quenching and tempering are "matching processes" (quenching → tempering) and cannot be used alone annealing and normalizing can be used alone as final heat treatment or as a preparatory process for quenching.
-
2.Cooling rate:
Quenching > Normalizing > Annealing>Tempering
-
3.Application selection logic:
If "soft processing" is required, select annealing;
if "performance improvement" is required, select normalizing;
If "high hardness and wear resistance" is required, quench first;
If "balanced strength and toughness" is required, add tempering.
| Process | Process principle | Purpose | Working temperature |
|---|---|---|---|
| Quenching | Heating to above Ac3/Ac1, keeping warm and then rapidly cooling in the medium to make the austenite directly transform into martensite or bainite. | 1.Significantly improves material hardness, strength, and wear
resistance. 2.Lays the foundation for subsequent tempering and performance adjustment. |
720~780℃ |
| Tempering | Reheat the quenched workpiece to below Ac1, keep it warm for a certain period of time and then slowly cool it down to eliminate the quenching internal stress and adjust the properties of the martensite structure. | 1.Eliminate internal stresses generated during quenching to prevent workpiece
deformation. 2.Reduce brittleness after quenching, balancing hardness and toughness. 3.Stabilize workpiece dimensions and structure. |
Low:150~250℃, Mid:350~500℃ High:500~650℃ |
| Annealing | Heat to above Ac3/Ac1, keep warm and then slowly cool in the furnace to make the structure uniform and stable | 1. Reduces hardness for easier cutting 2. Eliminates internal stress 3. Refines grain size and creates a uniform microstructure |
720~850℃ |
| Normalizing | Heat to above Ac3/Accm, keep warm and then cool naturally in air to obtain fine pearlite structure. | 1.Improve material strength and hardness 2.Eliminate internal stress 3.Improve cutting performance |
780~950℃ |