Detailed Selling Lead Description
On the basis of vacuum hot presses which have proved for decades now a new generation of hot presses has been generated which realises the SPS-/FAST-technology at the state of the art and so guarantees an effective and reliable use of the mentioned advantages of the process.
At this sintering process the tool respectively the component is heated by direct electrical current, so that cycle times of few minutes will be possible. Using short DC-current pulses leads to an additional increase of the sintering activities with many materials, resulting from the processes that occur on the points of contact of the powder particles (Joule effect, generation of plasma, miragtion etc.), so that it will be possible to use by with significant lower temperatures as well as significant lower mold pressure compared with conventional hot pressing and sintering.
The equipment comprises a fully digital controlled hydraulic system with a precisely working force/speed-control via a sub-μm-accurate distance transducer.
The power supply unit supplies free programmable DC-current pulses for flexible adoption to the particular job.
The sintering temperature can be up to 2400°C and is controlled by up to five thermocouples and two additional pyrometers.
All process parameters are programmable and administrated by a built in database. So any optional sintering process can run fully automatic. All process data are recorded digitally and can be analysed via an integrated data logger.
This leads to absolutely new possibilities of producing a lot of materials with extraordinary properties, for example:
- Nanomaterials can be sintered without significant grain growth.
- FGM (?Functionally Graded Materials“)
- Composite materials
- Tungsten carbide and many other hard materials
- Alumina or copper alloys
- Structural and functional ceramics
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放电等离子烧结SPS（FAST）技术属于新一代的热压工艺。该工艺充分体现了其高效能和可靠性的技术优势。
由于是在直接电流的作用下对相关部件进行加热，所以该烧结工艺的流程时间可在几分钟内完成。使用直流电脉冲作用于微粒子层面，可以显著提高对许多材料的烧结活动。因此，和传统的热压烧结工艺相比，现在可以在非常低的温度和烧铸压力下完成工艺。
该设备包括一套电子液压控制系统，通过可精确到微米的距离传感器来控制工作压力、行程和速度。
电力系统可以为适应特别要求，提供随意设计的直流电脉冲。
烧结温度最高可以达到2400°C，并可由多达五个热电偶和两个外部的高温计控制。
所有的程序参数都可以由数
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