本文简介了低温等离子复合技术。采用该技术可以在单晶金刚石颗粒表面获得强力结合的多层金属层、合金层及陶瓷涂层。该技术还可使金刚石表面涂层与金刚石之间形成强键结构过渡层。多层结构的包衣金刚石具有许多优点：提高了单颗粒金刚石抗压强度、高温条件下的抗氧化能力以及提高包衣金刚石与胎体材料之间的冶金结合能力等等。最后介绍了我们用低温等离子复合技术制备的川Ⅱ号包衣金刚石锯片刀头的使用效果。 This article describes the low temperature plasma composite technology. Using this technology can be strongly bonded multi-layer metal layer, alloy layer and ceramic coating on the surface of single crystal diamond particles. This technique also allows a strong bond transition layer between the diamond surface coating and the diamond. The multi-layered, coated diamond has many advantages: improved compressive strength of single-particle diamond, improved oxidation resistance at elevated temperatures, improved metallurgical bonding between the coated diamond and the matrix material, and the like. Finally, we introduced the use of low temperature plasma composite technology prepared Ⅱ coated diamond saw blade blade effect.