摘要
为研发对磨损模具部件精密修复的方法,本文研究La_(2)O_(3)掺杂Ni基沉积涂层的耐磨性能。研究发现,当La_(2)O_(3)添加量为2%、3%时,涂层中、上部硬度分布均匀;当La_(2)O_(3)添加量为3%时,其磨损体积约为未添加La_(2)O_(3)时Ni基涂层的1/18;La_(2)O_(3)对沉积涂层具有较好的细晶强化作用。综上分析,塑料模具磨损部件采用La_(2)O_(3)掺杂Ni基涂层进行修复,可大大提高其耐磨性能;同时,La_(2)O_(3)的净化、细化、造渣功能可使工艺实施时减少涂层缺陷,提高模具的修复质量。
This paper studies wear properties of La_(2)O_(3) doped Ni-based deposition coatings to develop methods for precision repair of worn mold components.Research has found that the hardness distribution in the middle and upper parts of the coating was uniform when the amount of La_(2)O_(3) added was 2%and 3%;the wear volume when the amount of La_(2)O_(3) added was 3%was about 1/18 of that of the Ni-based coatings when no La_(2)O_(3) was added;La_(2)O_(3) had a good effect on fine grain strengthening of deposition coatings.In summary,the use of La_(2)O_(3) doped Ni-based coatings for repairing worn parts of plastic molds can greatly improve their wear resistance.Meanwhile,the purification,refinement,and slagging functions of La_(2)O_(3) can reduce coating defects during process implementation and improve the quality of mold repair.
作者
杨挺
杨刚
Yang Ting;Yang Gang(Institute of Metrology and Product Quality and Safety Testing in Huangyan District of Taizhou City,Taizhou 318020,Zhejiang Province,China;Taizhou Vocational College of Science and Technology,Taizhou 318020,Zhejiang Province,China)
出处
《科学与信息化》
2024年第16期77-79,共3页
Technology and Information
