| 摘要 |
This new laser padding material, which has copper as main component, comprises at least one element selected from Ni (1-5 wt.%), Si (0.2-5 wt.%), B (1 wt.% or less), P (2 wt.% or less), Mn (3 wt.% of less), and Cu (the remainder). Another specified composition is at least one element selected from Ni (1-5 wt.%), Si (0.2-5 wt.%), Al (1 wt.% or less), Ca ets. (as a deoxygenating agent) and Cu (the remainder). The above mentioned elements can be in the form of powders of the single elements, compounds or their mixtures, or alloys. The molecular ratio of Ni to Si is 2 : 1. The material can also contain ceramic powder such as alumina ceramic. In the process for laser padding using this material the powdered components of the material are deposited on the body metal and irradiated with a laser, whereupon the powder melts onto the metal. |
