真空加热炉是一种利用真空环境下的加热技术来加热材料的设备。它能够在无氧、低气压或惰性气体环境下对材料进行加热，从而达到特定的物理或化学变化，常用于金属、陶瓷、玻璃等材料的处理和制造过程中。

How to pronounce: [vækjuːm ˈhiːtɪŋ fərnɪs]

Usage:

真空加热炉通常用于高温处理和精密制造过程中，可提高材料的强度、硬度和耐腐蚀性。

Example sentences:

1. The metal was heated in a vacuum furnace to ensure its purity.

这种金属在真空加热炉中加热，以确保其纯度。

2. The ceramic pieces were fired in a vacuum furnace for several hours.

这些陶瓷制品在真空加热炉中经过数小时的高温处理。

3. The glass was melted and molded in a vacuum furnace to create the perfect shape.

这块玻璃通过在真空加热炉中融化和成型，最终得到了完美的形态。

4. The metal components were heat-treated in a vacuum furnace to improve their mechanical properties.

这些金属零件通过在真空加热炉中进行热处理，以提高其机械性能。

5. The vacuum furnace is an essential tool in the production of high-quality materials.

真空加热炉是生产高质量材料的必备工具。

Synonyms and usage:

1. Vacuum oven (真空烘箱): a type of vacuum furnace used for drying materials at low temperatures.

2. Sintering furnace (烧结炉): a type of vacuum furnace used for compacting and forming materials at high temperatures.

3. Annealing furnace (退火炉): a type of vacuum furnace used for heating and cooling materials to alter their physical properties.

4. Melting furnace (熔化炉): a type of vacuum furnace used for melting and casting metals at high temperatures.

5. Brazing furnace (钎焊炉): a type of vacuum furnace used for joining metal components through the use of a filler material.

Editor's summary:

真空加热炉是一种利用真空环境下的加热技术来加热材料的设备，常用于金属、陶瓷、玻璃等材料的处理和制造过程中。它能够在无氧、低气压或惰性气体环境下对材料进行加热，从而达到特定的物理或化学变化。同义词包括真空烘箱、退火炉、钎焊炉等，可用于不同的加工需求。真空加热炉是生产高质量材料的重要工具，可提高材料的强度、硬度和耐腐蚀性。