Can Hybrid Furnace be used for sintering experiments?

The tube furnace box type furnace integrated Hybrid Furnace can be fully used for sintering experiments. Its modular design and functional integration characteristics enable it to meet the sintering needs of various materials such as ceramics, metals, and composite materials. The specific advantages and application scenarios are as follows:

1. Hybrid Furnace supports the core capability of sintering experiments
Multi mode heating system
Tube furnace module: Provides precise temperature control (± 1 ℃) and rapid heating, suitable for sintering small-sized samples such as ceramic powders and metal particles.
Box furnace module: equipped with a large capacity constant temperature zone, suitable for batch sintering of large-sized samples (such as ceramic bodies and metal targets), with temperature uniformity error ≤ 3%.
Joint mode: The collaborative work of tube furnace and box furnace is achieved through program control. For example, after the tube furnace rapidly heats up to the target temperature, it is transferred to the box furnace for insulation or cooling, realizing complex process flow.
Flexibility in atmosphere control
Supports various atmospheres such as vacuum (with a vacuum degree of up to 10 ⁻³ Pa), nitrogen, argon, hydrogen, etc., which can prevent materials from oxidizing or undergoing chemical reactions during the sintering process. For example, nitrogen gas is introduced during the sintering of ceramic materials to prevent abnormal grain growth; During the sintering of metal powder, hydrogen gas is introduced for reduction to reduce the content of oxygen impurities.
Gradient temperature control and dynamic adjustment
The intelligent temperature control system supports multi-stage programming (such as 2 sets of 16 segments), which can achieve temperature gradient control, segmented insulation or cooling rate adjustment. For example, in the sintering of functionally graded materials (FGM), temperature distribution optimization from the surface to the interior is achieved through gradient temperature control, which improves the uniformity of material properties.

2. Typical sintering experimental application scenarios
a. Sintering of ceramic materials
Alumina ceramics:
Application: Preparation of high ceramic structural components.
Case: Vacuum sintering at 1600 ℃ for 2 hours in a box furnace resulted in increased density and higher bending strength of the billet.
Hybrid advantage: The box furnace has a large capacity suitable for batch processing, while the tube furnace can assist in local temperature adjustment, reducing the risk of cracking.
Silicon nitride ceramics:
Application: Manufacturing high-speed cutting tools.
Case: After introducing nitrogen into a tube furnace and hot pressing sintering at 1800 ℃, the material has stronger fracture toughness, meeting the cutting requirements.
Hybrid advantage: The rapid heating of the tube furnace combined with the stable insulation of the box furnace forms a uniform fibrous grain structure.
b. Sintering of metal materials
Powder metallurgy parts:
Application: Preparation of high-density metal gears.
Case: Sintering at 850 ℃ under hydrogen protection in a tube furnace results in better density and increased hardness of metal powder.
Hybrid advantage: Tube furnace atmosphere control prevents oxidation, and box furnace can assist in subsequent heat treatment (such as tempering).
Hard alloy:
Application: Manufacturing wear-resistant tool coatings.
Case: After vacuum sintering at 1400 ℃ in a box furnace, nitrogen gas is introduced into a tube furnace for rapid cooling, forming fine carbide grains with higher hardness.
Hybrid advantage: High temperature sintering of box furnace combined with rapid cooling of tube furnace optimizes material structure.
c. Sintering of composite materials
Carbon fiber reinforced ceramic matrix composite material:
Application: Hot end components of aircraft engines.
Case: Treatment at 1200 ℃ under argon protection in a tube furnace resulted in improved interfacial shear strength and temperature resistance up to 1500 ℃.
Hybrid advantage: The tube furnace has precise temperature control to prevent fiber damage, while the box furnace can assist in batch processing.
Metal ceramic gradient materials:
Application: Thermal management of electronic packaging.
Case: Using the gradient temperature control system of Hybrid Furnace, a transition layer from copper to aluminum oxide was prepared with matching thermal expansion coefficient to reduce cracking.
Hybrid advantage: Multi segment programming enables temperature gradient and supports complex process design.