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回火參數對10B33 扭力控制型斷尾螺栓扭力值影響之研究 = Effec...

國立高雄大學化學工程及材料工程學系碩士班

回火參數對10B33 扭力控制型斷尾螺栓扭力值影響之研究 = Effect of tempering on torque of 10B33 torque control bolt

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	Effect of tempering on torque of 10B33 torque control bolt
作者:	許鈞翔,
其他團體作者:	國立高雄大學
出版地:	[高雄市]
出版者:	撰者;
出版年:	2013[民101]
面頁冊數:	109面圖，表格 : 30公分;
標題:	扭力
標題:	Torque
電子資源:	http://handle.ncl.edu.tw/11296/ndltd/27870190936762345387
附註:	參考書目：面95-97
附註:	102年10月31日公開
摘要註:	扭力控制型斷尾螺栓是鋼結構行業中最常見也最重要的使用扣件，而扭力值常為判斷扣件是否鎖緊之依據，因此擁有穩定的扭力值可以防止鎖緊過度導致螺栓產生斷裂之情形，或是鎖緊不足導致扣件內產生間隙進而出現組合件鬆脫、掉落之情形產生。本研究以10B33扭力控制型斷尾螺栓做為實驗的材料，進行淬火、回火熱處理後，以扭力試驗機探討其扭力值，並進行扭斷面之觀察，接著以洛氏硬度機探討硬度值。並依據所得之數據輔以顯微組織以探討回火參數對扭力控制型斷尾螺栓扭力值之影響。由本研究實驗結果中顯示，10B33扭力控制型斷尾螺在回火溫度(467℃、487℃、507℃)越高時扭力值會越低、回火時間(85分鐘、95分鐘、105分鐘)越長扭力值也會越低，並在同一回火溫度下發現回火時間越長扭力值趨於穩定。而其扭力值與硬度值、抗拉強度呈現正比的關係，與延韌性呈現反比之關係。而就顯微組織來看，當回火溫度(467℃、487℃、507℃)越高、回火時間(85分鐘、95分鐘、105分鐘)越長時，肥粒鐵的數量有明顯的增加，且顯微組織也較為均勻，此現象對材料之機械性質有正向的影響。 Torque control bolt is the most common and important fastener in structural steel industry. Torque is often considered as a standard to determine whether the fastener is locked or not. Therefore, a stable torque can ensure that if the fastener is in its service properly or not. Furthermore, it can increase the safety by preventing fastener from breaking or loosing while the fastener is locked too tight or too loose. This study selected the 10B33 torque control bolt as the experimental material. After quenching and tempering, the torque value was measured and broken surface was analyzed by the torque testing machine. The Rockwell hardness tester was adopted to test the hardness of each specimen with different tempering conditions. According to the combination of results, including torque, hardness and the microstructure, the effect of tempering on the properties of 10B33 torque control bolt could be totally clarified. The experimental results showed that the higher tempering temperature is the lower torque value. The soaking time of tempering exhibited a similar result as tempering temperature. The longer time caused a lower torque value. There was also found that when the tempering temperature was fixed the longer soaking time could stabilize the torque value. In other words, the deviation of torque value was getting smaller and smaller. Besides, torque, hardness and tensile strength were proportional to each other. Nevertheless, the torque was inversely proportional to ductility and toughness. On the basis of the microstructure, when the ferrite content increased significantly then the microstructure became more homogeneous either with the higher tempering temperature(467℃, 487℃, 507℃) or the higher soaking time(85minutes, 95 minutes, 105 minutes). This phenomenon had a positive influence on the mechanical properties.

回火參數對10B33 扭力控制型斷尾螺栓扭力值影響之研究 = Effect of tempering on torque of 10B33 torque control bolt
許, 鈞翔

回火參數對10B33 扭力控制型斷尾螺栓扭力值影響之研究 = Effect of tempering on torque of 10B33 torque control bolt / 許鈞翔撰 - [高雄市] : 撰者, 2013[民101]. - 109面 ; 圖，表格 ; 30公分.
參考書目：面95-97102年10月31日公開.
扭力Torque

回火參數對10B33 扭力控制型斷尾螺栓扭力值影響之研究 = Effect of tempering on torque of 10B33 torque control bolt
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330 $a 扭力控制型斷尾螺栓是鋼結構行業中最常見也最重要的使用扣件，而扭力值常為判斷扣件是否鎖緊之依據，因此擁有穩定的扭力值可以防止鎖緊過度導致螺栓產生斷裂之情形，或是鎖緊不足導致扣件內產生間隙進而出現組合件鬆脫、掉落之情形產生。本研究以10B33扭力控制型斷尾螺栓做為實驗的材料，進行淬火、回火熱處理後，以扭力試驗機探討其扭力值，並進行扭斷面之觀察，接著以洛氏硬度機探討硬度值。並依據所得之數據輔以顯微組織以探討回火參數對扭力控制型斷尾螺栓扭力值之影響。由本研究實驗結果中顯示，10B33扭力控制型斷尾螺在回火溫度(467℃、487℃、507℃)越高時扭力值會越低、回火時間(85分鐘、95分鐘、105分鐘)越長扭力值也會越低，並在同一回火溫度下發現回火時間越長扭力值趨於穩定。而其扭力值與硬度值、抗拉強度呈現正比的關係，與延韌性呈現反比之關係。而就顯微組織來看，當回火溫度(467℃、487℃、507℃)越高、回火時間(85分鐘、95分鐘、105分鐘)越長時，肥粒鐵的數量有明顯的增加，且顯微組織也較為均勻，此現象對材料之機械性質有正向的影響。 Torque control bolt is the most common and important fastener in structural steel industry. Torque is often considered as a standard to determine whether the fastener is locked or not. Therefore, a stable torque can ensure that if the fastener is in its service properly or not. Furthermore, it can increase the safety by preventing fastener from breaking or loosing while the fastener is locked too tight or too loose. This study selected the 10B33 torque control bolt as the experimental material. After quenching and tempering, the torque value was measured and broken surface was analyzed by the torque testing machine. The Rockwell hardness tester was adopted to test the hardness of each specimen with different tempering conditions. According to the combination of results, including torque, hardness and the microstructure, the effect of tempering on the properties of 10B33 torque control bolt could be totally clarified. The experimental results showed that the higher tempering temperature is the lower torque value. The soaking time of tempering exhibited a similar result as tempering temperature. The longer time caused a lower torque value. There was also found that when the tempering temperature was fixed the longer soaking time could stabilize the torque value. In other words, the deviation of torque value was getting smaller and smaller. Besides, torque, hardness and tensile strength were proportional to each other. Nevertheless, the torque was inversely proportional to ductility and toughness. On the basis of the microstructure, when the ferrite content increased significantly then the microstructure became more homogeneous either with the higher tempering temperature(467℃, 487℃, 507℃) or the higher soaking time(85minutes, 95 minutes, 105 minutes). This phenomenon had a positive influence on the mechanical properties.
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