碱性清洗剂对两种硬质合金刀片表面钴流失的影响  

Effect of Alkaline Cleaning Agents on Cobalt Loss on Surface of Two Kinds of Cemented Carbide Inserts

作　　者：李克林 董晋 叶倩文 于翔 Li Kelin;Dong Jin;Ye Qianwen;Yu Xiang(Yantai EDDIE RUINENG Superhard Cutting Tools Co.,Ltd.,Yantai Shandong 264000,China)

机构地区：[1]烟台艾迪锐能超硬刀具有限公司,山东烟台264000

出　　处：《硬质合金》2024年第5期408-416,共9页Cemented Carbides

摘　　要：通过清洗机清洗和清洗剂浸泡试验,研究碱性清洗剂对WC-10%Co合金刀片APMT1135PDER-M1和WC-TiC-TaC-6%Co合金刀片WNMG080412-DX表面钴流失的影响。结果表明:碱性清洗剂容易造成硬质合金刀片表面钴流失;WC-TiC-TaC-Co类刀片WNMG080412-DX连续经过3次清洗或3次浸泡(尤其在氢氧化钠+氢氧化钾+氨基三亚甲基膦酸、氢氧化钾+酰胺类+2-丁氧基乙醇的碱性清洗剂中)后,较WC-Co类刀片APMT1135PDER-M1更易出现钴流失,表面钴含量远低于基体设定钴含量;已经清洗形成钴流失的刀片经过湿喷砂后表面钴含量接近基体设定值。建议在实际生产中:WC-TiC-TaC-Co类硬质合金刀片在涂层之前最多进行1次清洗,若因表面洁净度等原因需返洗,需要先湿喷砂处理,再进行清洗。In order to investigate the effect of alkaline cleaning agents on cobalt loss on the surface of WC-10%Co cemented carbide insert,APMT1135PDER-M1 and WC-TiC-TaC-6% Co cemented carbide insert,WNMG080412-DX,cleaning machine cleaning and cleaning agent soaking tests were conducted.The results indicate that alkaline cleaning agents are prone to causing cobalt loss on the surface of cemented carbide inserts;WC-TiC-TaC-Co cemented carbide insert,WNMG080412-DX,is more prone to cobalt loss than WC-Co cemented carbide insert,APMT1135PDER-M1 after three consecutive cleaning or soaking cycles(especially in alkaline cleaning agents such as sodium hydroxide+potassium hydroxide+amino trimethylphosphonic acid,as well as potassium hydroxide+amide+2-butoxyethanol).The surface cobalt content is much lower than the set cobalt content of the substrate;the surface cobalt content of the inserts that have already been cleaned and lost cobalt after wet sandblasting approaches the set value of the substrate.It is suggested that the WC-TiC-TaC-Co cemented carbide insert should be cleaned at most once before coating in actual production.If backwashing is required due to surface cleanliness or other reasons,wet sandblasting treatment should be carried out first before cleaning.

关 键 词：硬质合金 碱性清洗剂 EDS检测 钴流失 

分 类 号：TG1[金属学及工艺—金属学]