Rapid production of Al-coated-Ti spherical powders by using plasma spraying method.

等离子喷涂法快速制备镀铝钛球形粉末

• 批准号: 17540470
• 负责人: OSAKI Katashi
• 金额: $ 2.37万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17540470/
• 关键词: Plasma jet generator; Plasma spray gun; Plasma processing; Spectroscopic measurement; Hybrid particle

In the present study, the aim is to product various hybrid particles by using a plasma spraying method. To this end, I have developed the high-performance-type plasma spray gun(HPPSG), and so, Al-coated-Ti spherical powders, which were raw material of Ti-Al metallic bond material, have been produced by using this spry gun. The results obtained in this study are as follows :1. Development of HPPSG based on plasma electrode type plasma jet generator.(1) A newly designed advanced plasma electrode type plasma jet generator (APEPJG) was stably operated under various operating conditions (maximum jet power; 14.1kW, thermal efficiency; 70-76%). Now, this generator constitutes from two Cu rode anodes and a Th-W rode cathode.(2) HPPSG consists of the above-mentioned APEPJG and two feed pipes which are set on and perpendicular the nozzle axis. HPPSG was stably operated under various spraying conditions and jet power was effectively controlled by the arc current. Also, the process materials effectively heated and melted and then symmetrically ejected from the nozzle.2. Production and appraisal of produced Al-coated-Ti spherical powders.(1) Al-coated-Ti spherical powders were produced by using the developed spry gun. But, the production rate of powders was low (〜few %) and also, the spherical particle was few..(2) The produced Al-coated-Ti particle was rich in Al.(3) The quantity and quality of produced Al-coated-Ti particles were improved at 40 l/min in the working gas flow rate. But detailed effects of the gas flow rate on the quantity and quality of it are further investigation.3. Quantities production of Al-coated-Ti spherical powders and synthesis of Ti-Al metallic bond material.It is possible to product quantities of Al-coated-Ti spherical powders with improving the production rate and the particle collector. In the future, it will be carried out further study.

在本研究中，目的是通过使用等离子喷涂方法生产各种杂化颗粒。为此，我开发了高性能型等离子喷枪（HPPSG），并因此，铝包钛球形粉末，这是Ti-Al金属结合剂材料的原料，已通过使用该喷枪生产。本研究取得的主要结果如下：1.基于等离子体电极式等离子体射流发生器的高压脉冲发生器的研制。(1)新型等离子体电极式等离子体射流发生器（APEPJG）在各种工况下稳定运行（最大射流功率14.1kW，热效率70-76%）。该发生器由两个铜阳极和一个钍钨阴极组成。(2)HPPSG由上述APEPJG和两个垂直于喷嘴轴线设置的进料管组成。HPPSG在各种喷涂条件下运行稳定，电弧电流有效地控制了射流功率。此外，工艺材料有效地加热和熔化，然后对称地从喷嘴喷出。铝包钛球形粉末的生产和评价。(1)采用自行研制的喷枪制备了铝包钛球形粉末。但是，粉末的产率低（约10%），并且球形颗粒很少。(2)制备的铝包钛颗粒富含铝。(3)在工作气体流速为40 l/min时，生产的Al包覆的Ti颗粒的数量和质量得到改善。但具体的气体流量对气体质量和数量的影响还有待进一步研究.研究了钛包铝球形粉末的快速制备和Ti-Al金属结合剂材料的合成，通过提高生产率和颗粒捕集剂，使钛包铝球形粉末的批量生产成为可能。今后还将进行进一步的研究。

项目成果

改良形プラズマ電極型プラズマ熔射ガンによるAl被覆Ti粉末の作成

改进等离子电极式等离子喷枪制备镀铝钛粉

• 发表时间: 2007
• 期刊: プラズマ応用と複合機能材料 Vol.16
• 作者: T.Mieno;D.Kato;A.Yamori;大崎 堅
• 通讯作者: 大崎 堅

Development and Application of Thermal Plasma Source for Processing. (in Japanese)

加工用热等离子体源的开发与应用。

• 发表时间: 2005
• 期刊: JWRI Symposium 2005
• 作者: Kazuaki Ooyachi;Akihiko Sasaki;Hiroyuki Matsui;K.Osaki
• 通讯作者: K.Osaki

プラズマ反応溶射によるTiO_2 の即時合成-合成粉末組成の原料粉末注入位置依存性-

等离子反应喷涂即时合成TiO_2 - 原料粉末喷射位置对合成粉末成分的依赖性 -

• 发表时间: 2006
• 期刊: 平成18年度 電気・情報関連学会中国支部連合大会予稿集
• 作者: M.Kondo;Y.Irie;M.Miyazawa;H.Kawaguchi;S.Yasue;K.Maeda;F.Uchida;大崎 堅;D.Watanabe;Y.Sakawa;大崎 堅;武井 信裕
• 通讯作者: 武井 信裕

プラズマ反応溶射によるTiO_2の即暗合成-合成粉末組成の原料粉末注入位置依存性-

等离子反应喷涂即时暗合成 TiO_2 - 原料粉末喷射位置对合成粉末成分的依赖性 -

• 发表时间: 2006
• 期刊: 平成18年度 電気・情報関連学会中国支部連合大会予稿集
• 作者: 三重野哲;竹口雅樹;Kenji Furuya et al.;Misawa K. et al.;武井 信裕
• 通讯作者: 武井 信裕

プロセス用熱プラズマ源の開発とその応用

工艺用热等离子体源的研制及其应用

• 发表时间: 2005
• 期刊: JWRI Symposium 2005 -研究成果発表会論文集- (大阪大学接合科学研究所)
• 作者: Sasa;K.;Nagashima;Y.;Takahashi;T.;Seki;R.;Tosaki;Y.;et. al.;大崎 堅;大崎 堅;大崎 堅
• 通讯作者: 大崎 堅