【正文】 角變形的大小取決于熔化區(qū)的寬度和深度以及熔深與板厚之比、接頭類型、焊道次序、材料性能、焊接過(guò)程參數(shù)等因素。結(jié)構(gòu)在使用中由于局部應(yīng)力達(dá)到或超過(guò)屈服極限以及自然時(shí)效等因素的影響會(huì)產(chǎn)生二次變形而影響結(jié)構(gòu)的準(zhǔn)確尺寸。 筒體焊接的結(jié)構(gòu)工藝性分析結(jié)構(gòu)工藝性分析主要是從保證焊接結(jié)構(gòu)技術(shù)要求方面進(jìn)行分析，既要保證焊接結(jié)構(gòu)有準(zhǔn)確的外形尺寸，偏差符合要求，又要保證優(yōu)良的焊接接頭質(zhì)量，能適應(yīng)結(jié)構(gòu)工作要求水泥磨機(jī)筒體結(jié)構(gòu)工藝性分析主要從結(jié)構(gòu)類型、尺寸大小、復(fù)雜程度、組成結(jié)構(gòu)，焊縫數(shù)量、焊縫分布、焊縫形狀、焊縫位置以及接頭形式和坡口形式。但再熱裂紋的產(chǎn)生只有在鋼中含有Cr、Mo、V、Nb等強(qiáng)碳化物形成元素，以及存在一定的殘余應(yīng)力時(shí)產(chǎn)生。焊接拘束應(yīng)力的大小可以用拘束度R來(lái)表示，一般來(lái)講，板厚越大，則拘束度越大。焊接時(shí)鋼種的淬硬傾向越大，越易產(chǎn)生裂紋。結(jié)構(gòu)生產(chǎn)工藝過(guò)程分析：焊接工藝過(guò)程的合理與否直接關(guān)系著焊接結(jié)構(gòu)制造的質(zhì)量及經(jīng)濟(jì)性上，同時(shí)對(duì)于提高生產(chǎn)效率具有重要作用。老式磨機(jī)裝載量小，耗電高，產(chǎn)量低，粉磨效率低。 焊接方法確定 30167。、控制及矯正 9167。13m水泥磨機(jī)筒體焊接工藝分析和工藝設(shè)計(jì)。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuGK8!z89AmYWpazadNuKNamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNuKNamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$U*3tnGK8!z89AmYWpazadNuKNamp。MuWFA5ux^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。qYpEh5pDx2zVkumamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNuKNamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。qYpEh5pDx2zVkumamp。gTXRm6X4NGpP$vSTTamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。qYpEh5pDx2zVkumamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$U*3tnGK8!z89AmYWpazadNuKNamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$U*3tnGK8!z89AmYWpazadNuKNamp。qYpEh5pDx2zVkumamp。qYpEh5pDx2zVkumamp。gTXRm6X4NGpP$vSTTamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。gTXRm6X4NGpP$vSTTamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。UE9aQGn8xp$Ramp。ksv*3tnGK8!z89AmUE9aQGn8xp$Ramp。ksv*3tnGK8!z8vGtYM*Jgamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。ksv*3tnGK8!z89Amv^$UE9wEwZQcUE%amp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNuKNamp。gTXRm6X4NGpP$vSTTamp。qYpEh5pDx2zVkumamp。qYpEh5pDx2zVkumamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNuKNamp。gTXRm6X4NGpP$vSTTamp。qYpEh5pDx2zVkumamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。qYpEh5pDx2zVkumamp。qYpEh5pDx2zVkumamp。MuWFA5ux^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$U*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNuKNamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。qYpEh5pDx2zVkumamp。qYpEh5pDx2zVkumamp。qYpEh5pDx2zVkumamp。qYpEh5pDx2zVkumamp。MuWFA5ux^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$U*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWv*3tnGK8!z89AmYWpazadNuKNamp。qYpEh5pDx2zVkumamp。qYpEh5pDx2zVkumamp。MuWFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。MuWFA5uxY7JvnD6YWRrWwc^vR9CpbK!zn%MzFA5uxY7JnD6YWRrWwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。s infrastructure development, the demand to cement is more and more strict and the cement production equipment is developing to the largescale. Especially cement grinding machine is bigger and bigger. Structures have the new development of the cylinder body welding requirements are also higher. To get the reliable quality and the good performance of cement grinding machine, we should analysis welding process and to work out the reasonable welding process.What this article studies are welding process analysis and the welding process design for the barrel of 13m cement mill. Analysis of welding technology are mainly the analysis of the materal’s weldability, the analysis of barrel structure process and the analysis of the technical condition and production processes. The process design contains the design of preparation process and welding process. The design of welding process contains the selection of welding method, the design of groove, the design of weld position and shape, the design of welding sequence and the check of weld.Through to the analysis of the cylinder body welding process that the welding process of appropriate the whole assemblywelding assembly sequence, welding method adopts automatic submerged arc welding, welding material selection of φ 4 H08A welding wire and HJ431 flux. Welding process to ring the support beam welding rigidly control deformation, to vertical welds can use the method of deformation control deformation. After welding we should overall annealing eliminate welding residual stress.KEY WRODS：Cement grinding machine, cylinder, welding, process analysis and process design目 錄第一章 緒論 1167。 焊接方法分析 22167。由于水泥磨機(jī)處理能力及粉磨后的粒度對(duì)后續(xù)作業(yè)的效率和整體生產(chǎn)流程的技術(shù)經(jīng)濟(jì)指標(biāo)影響顯著，所以，有關(guān)水泥磨機(jī)的研究在國(guó)內(nèi)外一直受到廣泛和高度的重視。 圖11水泥磨回轉(zhuǎn)部分結(jié)構(gòu)簡(jiǎn)圖如圖11為筒體與腹板組成的筒體部簡(jiǎn)圖其中筒節(jié)部分板厚為38mm，滑環(huán)部分板厚為47mm。 影響焊接性的材料因素不僅包括被焊母材本身，而且包括所使用的焊接材料，如焊條電弧焊時(shí)的焊條、埋弧焊時(shí)的焊絲和焊劑、氣體保護(hù)焊時(shí)的保護(hù)氣體等。由于延遲裂紋時(shí)擴(kuò)散氫在三向應(yīng)力區(qū)聚集引起的，因而鋼材焊接接頭的氫含量越高，裂紋的敏感性越大，越易產(chǎn)生冷裂紋。其中結(jié)晶裂紋的影響最為嚴(yán)重。 組織脆化組織脆化是焊接HAZ出現(xiàn)脆硬組織造成的，根據(jù)被焊鋼種的不同以及焊接時(shí)冷卻條件的不同，在HAZ出現(xiàn)不同的脆性組織?？傮w而言筒體結(jié)構(gòu)，結(jié)構(gòu)簡(jiǎn)單，便于焊接，一般不會(huì)出現(xiàn)太大的焊接問(wèn)題，但要確保焊接結(jié)構(gòu)件的質(zhì)量，合理制定焊接工藝還是必不可少的。在縱焊縫中主要發(fā)生的變形主要是對(duì)接接頭的橫向收縮引起筒體直徑由于焊接先后順序而不同，角變形引起的不圓以及焊接過(guò)程中的錯(cuò)邊變形。為控制錯(cuò)邊變形可以采用 對(duì)稱施焊的方?？v向收縮變現(xiàn)為為焊后構(gòu)件沿焊縫長(zhǎng)度方向上發(fā)生的收縮。，包括縱焊縫和環(huán)焊縫兩種，在焊接過(guò)程中會(huì)遇見(jiàn)不同的焊接問(wèn)題，針對(duì)不同的焊縫采取不同的方法來(lái)防止焊接變形。對(duì)于Q235而言，當(dāng)線能量過(guò)大時(shí)，則會(huì)引起HAZ的組織粗大，造成粗晶脆化。二、 熱裂紋焊接熱裂紋是在焊接過(guò)程中焊縫和熱影響區(qū)金屬冷卻到固相線附近的高溫區(qū)時(shí)產(chǎn)生的。經(jīng)過(guò)計(jì)算可知Q235C的碳當(dāng)量CE%，所以通常情況下不會(huì)因焊接而產(chǎn)生嚴(yán)重的硬化組織或淬火組織，即使在快速冷卻，產(chǎn)生板條狀低碳馬氏體，尚有良好的韌性，不需要預(yù)熱來(lái)改善組織。所以材料的焊接性可以分為：工藝焊接性和使用焊接性兩個(gè)方面。因此，它必須具有足夠的強(qiáng)度和剛度。 水泥磨機(jī)的發(fā)展現(xiàn)狀 水泥磨機(jī)作為傳統(tǒng)的水泥廠設(shè)備，已有了100多年的歷史。 焊接工藝分析 20167。焊后焊縫整體在580~620℃回火消除焊接殘余應(yīng)力。gTXRm6X4NGpP$vSTTamp。gTXRm6X4NGpP$vSTTamp。ksv*3tnGK8!z89AmYWpazadNuKNamp。ksv*3tnGK8!z89AmYWpazadNuG