本文選題：不銹鋼絲網(wǎng)　切入點：電源控制　出處：《沈陽工業(yè)大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：在液壓、機械、石油、化工等行業(yè)的液體流動通道中通常需要進行過濾。目前制造過濾裝置有很多選擇,其中一種典型形式及制造技術(shù)是將不銹鋼絲網(wǎng)卷成筒體進行縫焊。在焊接成的不銹鋼絲網(wǎng)筒體內(nèi)側(cè)或外側(cè)再加上強度符合要求的不銹鋼骨架等機構(gòu),使過濾裝置達到強度等方面的要求,從而制造成不銹鋼絲網(wǎng)過濾裝置。為此開發(fā)了不銹鋼絲網(wǎng)筒體縫焊設(shè)備。針對不銹鋼絲網(wǎng)筒體縫焊的能量控制要求,設(shè)計了專用的縫焊電源控制系統(tǒng)。電源控制系統(tǒng)主要由同步脈沖控制系統(tǒng)、時間控制系統(tǒng)、移相控制系統(tǒng)、脈沖列觸發(fā)控制系統(tǒng)以及晶閘管開關(guān)控制系統(tǒng)等組成。設(shè)計的縫焊電源控制系統(tǒng)首先產(chǎn)生50Hz和100Hz的同步脈沖,然后50Hz脈沖控制時間控制系統(tǒng),100Hz的同步脈沖控制移相和脈沖列產(chǎn)生,觸發(fā)脈沖列的脈沖寬度為200μs,周期為210μs,最后觸發(fā)晶閘管控制主焊接變壓器進行焊接,并且第一半波總是在控制角為90°時觸發(fā)。電源控制系統(tǒng)能量采用粗調(diào)和微調(diào)相結(jié)合的調(diào)節(jié)方式,這種調(diào)節(jié)方式使焊接能量的控制更精細。針對不銹鋼絲網(wǎng)筒體縫焊的工藝要求,設(shè)計了專用的機械機構(gòu)。機械機構(gòu)主要由氣動控制系統(tǒng)、圓盤形滾輪上電極、圓柱形下電極、絲網(wǎng)筒體成形裝置以及工作臺等組成。設(shè)計制造的圓盤滾輪上電極傳動系統(tǒng)提供的焊接壓力為2.0—3.6 kN,圓柱形下電極和絲網(wǎng)筒體成型夾具保證了焊后的不銹鋼絲網(wǎng)筒體符合直徑30mm和長500mm的尺寸要求,工作臺和伺服進給系統(tǒng)保證了焊接時的速度為200—400 mm/min。該機構(gòu)焊接操作過程簡便、工作也十分可靠,能實現(xiàn)加壓、行走以及焊接等操作。采用自主研制的縫焊設(shè)備進行了不銹鋼絲網(wǎng)筒體的焊接實驗,實驗對象是絲徑和孔徑都為0.13mm的不銹鋼絲網(wǎng)。實驗確定了檔位6,熱量調(diào)節(jié)比例67%,加熱周波數(shù)2,間隙周波數(shù)2,焊接壓力2.5kN和焊接速度350 mm/min的縫焊工藝參數(shù)。實際縫焊表明,焊縫成形良好,能夠保證不銹鋼絲網(wǎng)筒體的過濾精度,焊接過程運行穩(wěn)定�？p焊設(shè)備及工藝技術(shù)在焊接運行時表明,焊接過程及焊接質(zhì)量穩(wěn)定。
[Abstract]:In fluid flow channels in hydraulic, mechanical, petroleum, chemical and other industries, filtration is usually required. There are many options for manufacturing filtration devices. One of the typical forms and manufacturing techniques is seam welding of stainless steel wire coiled into a cylinder. Inside or outside the welded stainless steel wire tube is added with a stainless steel skeleton of strength that meets the requirements. In order to make the filter device meet the requirements of strength and other aspects, the stainless steel mesh filter device is manufactured. For this purpose, the stainless steel wire mesh tube seam welding equipment is developed, and the energy control requirements of the stainless steel screen tube seam welding are discussed. A special seam welding power source control system is designed. The power control system is mainly composed of synchronous pulse control system, time control system, phase shift control system, The pulse train trigger control system and the thyristor switch control system, etc. The designed seam welding power source control system first produces synchronous pulses of 50 Hz and 100 Hz. Then the synchronous pulse control phase shift and pulse train of 100Hz pulse control system are generated. The pulse width of the trigger pulse train is 200 渭 s and the period is 210 渭 s. Finally, the main welding transformer is controlled by the thyristor to weld. And the first half of the wave is always triggered when the control angle is 90 擄. The energy of the power control system is regulated by the combination of coarse and fine tuning, which makes the control of welding energy more precise. A special mechanical mechanism is designed. The mechanism is mainly composed of pneumatic control system, disk roller top electrode, cylindrical lower electrode, The welding pressure provided by the electrode transmission system of the disc roller is 2.0-3.6 kN, and the welding pressure of the cylinder bottom electrode and the wire mesh tube forming fixture ensures the stainless steel wire tube after welding. The body meets the size requirements of 30 mm in diameter and 500 mm in length, The worktable and servo feed system guarantee the welding speed of 200-400 mm / min. The welding process of the mechanism is simple and reliable, and it can be pressurized. The welding experiment of stainless steel wire mesh tube was carried out by using the self-developed seam welding equipment. The experimental object is stainless steel wire mesh with both diameter and aperture of 0.13mm. the welding process parameters are determined as gear 6, heat adjustment ratio 67, heating Zhou Bo 2, gap Zhou Bo 2, welding pressure 2.5kN and welding speed 350 mm/min. The welding seam is well formed, which can ensure the filter precision of stainless steel screen tube and the running stability of welding process. The welding equipment and technology show that the welding process and welding quality are stable.
【學(xué)位授予單位】：沈陽工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TG457.11

【參考文獻】

相關(guān)期刊論文 前10條

1 劉華榮;何建萍;王付鑫;宗小彥;;不銹鋼絲網(wǎng)對接接頭的微束等離子焊研究[J];熱加工工藝;2016年17期

2 王磊;章程;高迎慧;劉坤;羅振兵;王林;嚴(yán)萍;邵濤;;晶閘管串聯(lián)開關(guān)及同步觸發(fā)系統(tǒng)研制[J];強激光與粒子束;2015年11期

3 賈帥;杜雙明;韓秉怲;;連接壓力對不銹鋼復(fù)合燒結(jié)濾網(wǎng)釬縫微觀組織及性能的影響[J];鑄造技術(shù);2015年09期

4 杜永超;;透氣性能好強磁吸附不銹鋼濾網(wǎng)液壓轉(zhuǎn)向油箱的設(shè)計[J];價值工程;2014年36期

5 李洪艷;;國產(chǎn)穩(wěn)壓管的技術(shù)分析與驗證改進[J];微型機與應(yīng)用;2014年13期

6 周細鳳;曾榮周;李貞;;基于LABVIEW的虛擬示波器的研究與應(yīng)用[J];湖南工程學(xué)院學(xué)報(自然科學(xué)版);2014年01期

7 張興;杜剛;王源;劉曉彥;;超低功耗集成電路技術(shù)[J];中國科學(xué):信息科學(xué);2012年12期

8 冀春濤;姜俊;趙平;;電容儲能縫焊控制系統(tǒng)的設(shè)計與實現(xiàn)[J];熱加工工藝;2012年21期

9 徐燕平;劉國榮;;催化裂化油漿過濾技術(shù)的改進及應(yīng)用[J];石化技術(shù);2012年02期

10 曹建玲;韋貫舉;杜紅年;;航天用濾網(wǎng)的真空電子束焊焊接工藝研究[J];焊接技術(shù);2012年05期

相關(guān)博士學(xué)位論文 前1條

1 文靜;電阻點焊質(zhì)量監(jiān)測智能化及系統(tǒng)研究[D];吉林大學(xué);2010年

相關(guān)碩士學(xué)位論文 前5條

1 于妍妍;斬波控制式微束等離子弧焊電源研究[D];沈陽工業(yè)大學(xué);2014年

2 姜俊;電容儲能縫焊控制系統(tǒng)的研究[D];南昌航空大學(xué);2012年

3 李亞平;交流逆變點焊電源的研制[D];華南理工大學(xué);2011年

4 陳超;導(dǎo)熱構(gòu)件雙槍無瘤焊接設(shè)備的研制[D];沈陽工業(yè)大學(xué);2009年

5 成海暉;工頻交流電阻焊控制器的研制[D];河北工業(yè)大學(xué);2007年

，

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