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| 題 名 | 噴銲硬化處理對耕耘刀外形特性之研究=Study on the Characteristics of Tiller Blade Shapes by Spray-Welding Hardening |
|---|---|
| 作 者 | 朱健松; | 書刊名 | 農業機械學刊 |
| 卷 期 | 15:3 民95.09 |
| 頁 次 | 頁33-45 |
| 分類號 | 432.511 |
| 關鍵詞 | 迴轉犁; 耕耘刀; 開墾刀; 鎳基合金粉末; 往覆式滑移磨耗試驗機; Rotary; Tiller blade; Cultivation blade; Nickel-base alloy; Schwingung reibung verschleiss mechanism; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本研究針對臺灣廣泛使用的迴轉犁配置耕耘刀及開墾刀,來驗證與分析耕耘土壤的力學模式,結果顯示:為發揮良好的耕耘性能及其均一耕耘抵抗,預防草桿纏繞現象,理論與計算值得知最佳切入角為85.88° 及84.28° ,其耕起角為59.70° 及58.31° ,兩組結果均符合文獻數據,驗證臺灣廠商所開發的耕耘刀具是適用於臺灣的耕地環境。為克服經常更換傳統不具耐磨耗性的刀具導致田間整地作業成本過高的問題,本研究利用所開發之鎳基合金粉末噴銲機構來強化耕耘刀的表面硬度,經往覆式滑移磨耗試驗機(SRV) 鍍層耐磨耗性及摩擦係數試驗中得知,SUP-HT 的表現均比SUP-H 為佳,且鎳基合金抗氧化性良好,鍍層的硬度值(HRc) 維持在58~60 之間,壓痕附著性由掃描式電子顯微鏡(SEM) 圖得知均在A等級,表示經噴銲硬化鍍層處理的耕耘刀確實能達到表面溫度的均勻性、精密性與穩定性。依據本研究試驗結果:每年可減少土壤中的鐵質含量約618,000 公斤,每臺車節省更換時間約7.5hr ,費用減省為4,620 元,減輕農友負擔,增加收入。 |
| 英文摘要 | These studies were aimed at the validation test which analyzes the mathematical models for the plowing force and trajectory curves of both tiller blades and cultivation blades of a rotary. These two blades are widely used in Taiwan. The results showed that the blades need uniform resistance to soil without intertwisting to obtain good plow efficacy. The theoretical and calculated cutting angles are 85.88° and 84.28°, and the edge-curve angles are 59.70° and 58.31° for the blades. The present data confirmed that the tiller blades developed by local companies are suitable for the plowing environment in Taiwan. In order to reduce the cost from frequent change of the blade due to wear and tear, the Nickel-Base alloy powder welding technique was applied to increase the surface hardening of tiller blades. In the Schwingung Reibung Verschleiss (SRV) testing mechanism experiment, the duration of attrition for the coating and the abrasive parameters has shown that SUP-HT specimens performed better than the SUP-H specimens. The SUP-HT also has a better anti-oxidized function with a hardness parameter (HRc) of 58~60. The adherence after compression has graded as A-class under Scanning Electronic Microscopy (SEM). It can be proved that the coating surface of the tiller blades treated with alloy powder welding would increase uniformity, precision and stability when using the alloy powder spray-welding mechanism developed in this study. As it is applied to the real situation, the natural soil can free from the contamination of iron particle coming off the blades up to 618,000kg. Meanwhile, a labor cost of 7.5 hr and equipment cost 4,620 NT can be saved per set of tractor, minimizing the cost of production. |
本系統中英文摘要資訊取自各篇刊載內容。