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不同加工方式對銅鎂合金桿組織和性能影響研究

時間:2019-05-19 11:18來源:畢業論文
研究了不同加工工藝以及不同的擠壓方式對銅合金桿組織和性能的影響。同時研究了不同合金成分對鑄桿組織的影響。確定了上引連鑄過程中最佳的出桿溫度。選取的加工工藝有上引連

摘要:本文研究了不同加工工藝以及不同的擠壓方式對銅合金桿組織和性能的影響。同時研究了不同合金成分對鑄桿組織的影響。確定了上引連鑄過程中最佳的出桿溫度。選取的加工工藝有上引連鑄、擠壓、拉拔、軋制。在對各項加工工藝得出的金相以及晶粒度的觀察和研究后,得出了一系列生產高速鐵路接觸導線網最佳生產工藝參數。實驗結果表明:(1)在上引連鑄過程中出桿溫度控制在70℃最佳。(2)不同的合金加入后,由于物理化學的作用,銅與其固溶度均不同,導致其鑄態組織也不盡相同(3)銅鎂合金桿的加工過程中軋制和拉拔均能使其晶粒變形,但擠壓對其晶粒度影響更為顯著。(4)無論對銅合金桿采用何種擠壓工藝,合金桿邊緣晶粒度總會比中心晶粒度小。第1種擠壓工藝比第2種擠壓工藝對銅錫合金桿的晶粒度的改變較為顯著。第3種擠壓工藝比第4、第5種擠壓工藝對銅銀合金桿的晶粒度的改變較為顯著。35553
畢業論文關鍵詞:銅鎂合金;擠壓;上引連鑄;拉拔;軋制
Study on Different Processing Methods to the Copper Microstructure and Mechanical Properties of Magnesium Alloy Rods
Abstract: This paper studies the effect of different process and a different way of copper alloy extruded rods organization and performance and studied the effect of different alloy composition on the copper alloy casting rods organization as well. Determine the best course of continuous casting rod temperature. Select the process have on the continuous casting, extrusion, drawing, rolling. After the observation and study of the results of metallurgical processing and grain size, obtained a series of high-speed railway contact wire mesh production optimum process parameters. The results showed that: (1) In the process of continuous casting rod temperature was controlled at 70 ℃ best. (2) different alloy addition, the role of physical chemistry, copper and its solubility were different, leading to its cast structure are not the same (3) Copper and magnesium alloy rod processing in the process of rolling and drawing can make its grain deformation, but squeeze more significant influence on the grain size. (4) No matter what kind of copper alloy rod extrusion process, the grain size of the alloy rod edge will always be smaller than the central grain size. The first one kind of extrusion process than the first two kinds of extrusion process to change the grain size of the copper-tin alloy rod is more significant. Third extrusion process changes the grain size of copper and silver alloy rod is more significant than the fourth, fifth extrusion process. 源`自*六)維[論*文'網www.aftnzs.live
Keywords: contact wire; copper magnesium alloy; extrusion; casting the lead; drawing; rolling
目錄
1.前言    1
1.1高速鐵路用銅鎂合金接觸線簡介    1
1.2國內外高速鐵路發展    2
1.2.1世界高鐵發展概況    2
1.2.1中國高鐵發展概況    3
1.3接觸網及接觸導線的基本要求和主要技術指標    3
1.3.1接觸導線的基本要求    4
1.3.2接觸導線的主要技術指標    4
1.4接觸導線的不同加工工藝流程    5
1.4.1接觸線材的工藝路線概述    5
1.4.2接觸導線的上引連鑄工藝    6
1.4.3接觸導線的擠壓工藝    7
1.4.4接觸導線的軋制工藝    11
1.4.5接觸導線的拉拔工藝    12
1.5選題的目的和意義    13
1.6課題的研究內容和目標    13
1.6.1研究內容    13
1.6.2研究目標    13
2.實驗    14
2.1 試驗原材料    14
2.2 試驗儀器與設備    14 不同加工方式對銅鎂合金桿組織和性能影響研究:http://www.aftnzs.live/cailiao/20190519/33559.html
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