示波冲击试验等试验手段,综合分析了9SiCr制剪刀片脆裂的原因,并指出现行剪刀片的刃口形状和它所剪切的钢板不适合采用9SiCr材料。如果必须采用,应在热处理工艺的设计上有所改进。此外,还要在被剪切钢板的材质和厚度上加以限制。 Oscillometric impact test and other test methods. The reason of the 9SiCr scissor blade fragility was analyzed. It is pointed out that the cutting edge shape of the current scissor blade and the steel plate it is cut are not suitable for 9SiCr material. If necessary, improvements should be made in the design of the heat treatment process. In addition, the material to be cut and the thickness of the plate to be limited.