|
| Determination of oxygen, nitrogen and hydrogen in micro injection molding of titanium alloy powder about degrease billets by impulse fusion-infrared absorption and thermal conductivity method |
| Received:August 21, 2022 Revised:March 27, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：doi:10.3969/j.issn.2095-1035.2023.05.014 |
| KeyWord:impulse fusion; infrared absorption and thermal conductivity method; titanium alloy; powder micro injection molding; oxygen; nitrogen; hydrogen |
| Author | Institution |
| ZHU Chunyao |
江苏省沙钢钢铁研究院 |
| QIN Jian |
江苏省沙钢钢铁研究院 |
| ZHAO Xiwen |
江苏省沙钢钢铁研究院 |
| ZHANG Jiming |
江苏省沙钢钢铁研究院 |
|
| Hits: 528 |
| Download times: 631 |
| Abstract: |
| he accurate determination of oxygen, nitrogen and hydrogen content of titanium alloy powder can greatly guide the improvement of powder microinjection process of titanium alloy.Using industrial nickel plate after surface grinding, pickling, processing into a fixed quality of nickel particles to replace commercial nickel flux, by homemade nickel particles added in advance to reduce the impact of the pulse melting-infrared / thermal conductivity, the method of determination, titanium alloy powder micro injection molding of oxygen and nitrogen hydrogen content method. The test shows that: nickel particle flux and graphite crucible after secondary degassing, can ensure that the blank of nickel particle flux drop extremely low value, instead of the market sold nickel basket, nickel chips and other flux. The titanium alloy powder is processed by vibration grinding to less than 80 mesh, the amount of nickel particles is 1.5 g, and the analytical power is 5300 W, the stable and accurate results can be obtained. The recovery test of relative standard deviation (RSD, n =6) is 0.08% ~ 0.047%, 0.28%~1.32% and 1.63%~2.02% with titanium alloy is from 99% to 101%, 97%~99% and 97%~ 103%. The method meets the requirement of rapid detection and hydrogen and greatly reduces the analysis cost. |
| Close |
|
|
|