Vacuum Sintering

The process starts with inserting the shaped green bodies (compacts) into the furnace chamber. The chamber is then evacuated, creating a fine vacuum. This prevents oxidation of sensitive materials and ensures that during sintering, no unwanted reactions with the atmosphere occur.
Next, debinding can optionally be performed by raising the temperature in a controlled manner until the binder evaporates from the green body. Sintering—either under vacuum, partial pressure, or atmospheric pressure up to 2,400°C—follows.

During sintering, powder particles fuse together at their contact surfaces, resulting in compaction and increased strength of the component.
The sintering atmosphere remains under vacuum or is, if necessary, replaced by a protective gas such as argon or hydrogen to achieve specific material properties.
After sintering, components are cooled in a controlled manner to minimize thermal stresses and achieve the desired material properties.
Modern vacuum sintering furnaces are equipped with precise temperature control and rapid cooling systems to optimize cycle times and ensure consistent product quality.

• Precision: Modern control and regulation systems enable accurate process control and ensure uniform temperature distribution and reproducible material properties.
• Robustness: The furnace chambers are made of high-quality, durable materials such as stainless steel, molybdenum, tungsten, and graphite to ensure a long service life and process reliability, even at extreme temperatures and atmospheres.
• Safety: Vacuum sintering furnaces feature comprehensive safety devices, including reliable pressure and temperature sensors as well as TÜV-certified systems, to guarantee safe operation at high temperatures and under vacuum.
• Customization: Thanks to modular design and numerous equipment options, vacuum sintering systems can be tailored to different materials, part sizes, and production requirements.

We offer comprehensive spare parts service, process consulting, and expert support for system optimization—directly from the specialists at PVA TePla.

What began as an important development in powder metallurgy has evolved into a key technology for the production of hard metals, technical ceramics, and other high‑performance materials. Modern applications in automotive, aerospace, electronics, and medical technology demand materials with the highest purity, density, and dimensional accuracy.

Vacuum sintering technology meets these requirements by providing a controlled, oxygen‑free atmosphere and enabling precise regulation of all relevant process parameters. Every new system undergoes extensive testing to ensure maximum quality and operational reliability—this applies not only to vacuum sintering equipment but to the entire PVA TePla product portfolio.

To our service

• Individual design

• Robust and reliable performance

• Powerful fast-cooling system availbale

• Variable in size and temperature range

For the production of standard and customer‑specific pressure vessels, components, and vacuum chambers, we operate our own manufacturing facility in Europe. It is entirely powered without the use of fossil fuels, fully aligning with our sustainability objectives.

Key advantages at a glance

• Fast delivery times: Greater independence from external suppliers
• Flexible customization: Short‑notice design changes can be implemented immediately.
• Reliable material availability: Constant access to high‑quality materials thanks to long‑standing local partnerships.
• Highest processing quality incl. standards: Performing welding operations in‑house allows direct monitoring of joint conformity, which is essential for meeting standards such as UNI EN ISO 3834.
• Top‑tier standards: Naturally, our facility meets our stringent requirements for quality, safety, and sustainability.