Activated carbon powder and alloy powder is added into the thermite at the time of preparing CLSP(ceramic-lined steel composite pipe).

• 在制备陶瓷内衬复合钢管时,在铝热剂中加入活性碳粉、合金粉末,使原来纯铁过渡层成为钢过渡层,硬度大幅度提高,从而使钢管抗压强度明显提高。