The methods of powder surface modification in existence are done in reaction kettle, blend machine, high speed mill, high speed crumb, liquid state jet mill etc.
现有粉体表面改性方法的具体实施是在反应釜、混合机、高速搅拌机、高速捏合机、液态流化床和高能磨中进行。
On the other hand, as iron powder surface modification method, the copperized replacement technics is simple, low cost, fast sediment speed and has little environmental pollution.
另一方面，置换镀铜作为铁粉表面改性方法，工艺简单，沉积速度快，成本低，工艺流程中环境污染小。
It indicates that laser micro-deposition of metallic powder has a bright prospect in laser surface modification of small parts and direct fabrication of fine and precise components.
结果表明，激光微沉积合金粉末技术在细小零件的激光表面改性及高精度小型零件的直接制备方面具有很好的应用开发前景。
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