挤压法制取银-石墨纤维型触头材料

本文介绍了一种新型的银-石墨纤维型触头材料。叙述了它的挤压、切片、脱碳等工艺。与常规工艺制取的材料相比,该材料不但物理性能、电寿命大为提高,而且保持了抗熔焊性好的优点。对于既要求有可靠的抗熔焊性又要求有较长电寿命的自动开关。是较为理想的触头材料。由于电寿命提高和触头尺寸减小,节银效果明显。

SILVER-GRAPHITE FIBRE TYPE MATERIALS USED FOR MAKING CONTACTS

The present work studies a new type of silver-graphite fibre materials used for making contacts and their new process e.g.extruding, silcing,decarburizing,etc. The physical properties and electrical life of the contacts can be greatly improved. The materials have a good welding resistance,hence they are the ideal contact materials for automatic switches which require reliable welding resistance as well as long electrical life.