铸造工艺毕业设计

铸造工艺毕业设计【篇一：铸造工艺毕业论文】毕业论文题目浅谈铸造工艺与品质检查姓名所在系别专业班级学号指导教师日期摘要：为了提高铸件的可靠性、适用性；提高产品在市场上的竞争能力，对铸件质量的要求不断提高。铸件质量的概念也发生了相应的变化，“质量”的含义至少包含两个方面的内容：一是产品质量，即铸件满足用户要求的程度；或按其用途在使用中应取得的功效，这功效是反映铸件结构特征、材质的工作特性和物理力学特性的总和，是评价铸件质量水平和技术水平的基本指标。二是工程质量，指的是铸制毛坯和铸制零件的生产过程对产品质量的保证程度，即铸件在具体使用条件下的可靠性。这一指标在相当大的程度上决定于前述的功效指标，还与稳定性、耐用性和工艺性等指标有关。标准是由国家承认的标准制订单位批准的对各种产品（铸件）规格、材料规格、试验方法、术语定义或推荐的工艺方法的规定。我国的国家标准是由国家技术监督局批准并颁行的，有关铸件质量的各种标准一经接纳、贯彻与实施，可取得明显的效果和效益。国际标准是由国际标准化组织批准并颁行的。我国是国际标准化组织的主要成员国之一，按国家现行的政策,国际标准可以等效地视为国家标准。关键词：铸件质量；提高铸件品质；稳定性；耐用性目录引言...........................................................................3第一章铸件质量标准.............................................................41.1铸件精度标准............................................................4第二章铸件缺陷分类.............................................................62.1铸件缺陷................................................................62.2废品与铸件质量.........................................................112.3修补与缺陷防止.........................................................11第三章铸造过程中的质量控制技术.................................错误！未定义书签。3.1影响铸件质量的因素.....................................................123.2技术准备过程的质量控制.................................................133.2.1质量标准的制定.......................................................133.2.2铸件设计.........................................................143.2.3铸造工艺、工装设计及验证.........................................153.3生产工艺过程的质量控制.................................................153.3.1原材料的质量控制.................................................153.3.2设备及工装的质量控制.............................................163.3.3工艺过程的质量控制..............................................16第四章铸件质量检测技术与缺陷诊断方法...........................................174.1铸件外观质量检测........................................................174.1.1铸件形状和尺寸检测..............................................174.2铸件内在质量检测.......................................................174.3铸件质量无损检测技术...................................................18结论.........................................................................18参考文献???????????????????????????????..19答谢。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。20引言铸造产品品质内在质量主要有：化学成分、金相组织、冶金缺陷、物理力学性能、可靠程度、晶粒度(共晶团数)、共晶饱和度、致密度、纯度、连续度等。这些内在质量会影响使用质量主要有：切削性能、焊接性能、运转性能、耐磨性能、耐蚀性能、耐温性能、工作寿命及其它工作条件要求等，而且其指标也在不断提高。1、炉前铁液成份检测直读光谱分析仪：分析研究有害微量元素群-特别是气体元素n、0、h。2、铸造原材料质量检测“x荧光能谱仪”就能在5分钟之内完成作为球化剂、孕育剂的各种铁合金、脱硫剂、炉渣、耐火材料、矿物等原材料的全分析。便携铸造工艺图、铸件图和模样图。本题目的研究方法，是运用所学《材料成形工艺基础》中的铸造成形理论，对金属液在充型、结晶、凝固和冷却过程中发生的一系列物理、化学的变化及铸件内部的变化进行了理论研究和分析。对如何保证铸件的质量，在合金液的成分上进行了研究和探讨，对工艺上采取的相应措施进行了可行性的研究和探讨，针对本题目，如何运用灰铸铁(ht250)铸造出所要求的零件的铸造成型工艺作了详细阐述，对运用砂型铸造设计的浇注系统做出了详细设计，并做出了铸型装配图，铸造工艺图和模样图。关键词：砂型铸造浇注系统铸造工艺图模样铸型装配图ht250abstractthedesignprojectistocompletethetaskofformingprocessforkpartsoflathedialtheformingdesign,accordingtothenatureoftheproductionofadesign,partstructuralcharacteristicsandusestodeterminethemethodusedtomakethecastingformingprocessoftheroughparts.thespecificcontentsofthecastingprocessinthedesign,castingprocessparametersidentified,thesandcoredesign,gatingsystemdesign,riserdesign,thedesignofcoldiron,andoutofholes,sandandsandcoreofdrying,butalsoonthecastingassemblyhasbeendesigned,includingappearance,templates,coreboxesandsandboxesandotherdesigns.assemblydiagramdrawnoutprocess,castingprocessmaps,chartsandpatterncastingmap.thesubjectofresearchmethodsistousewhattheyhavelearnedmaterialformingtechnologybaseinthecastingformingthetheoryofliquidinthefillingofmetal,crystal,solidificationandcoolingprocessinaseriesofphysicalandchemicalchangesandchangesinthecastingsthetheoreticalresearchandanalysis.castingonhowtoensurethequalityoftheingredientsintheliquidalloywascarriedoutresearchandstudyontheprocesstotaketheappropriatemeasurestostudyandexplorethefeasibility.accordingtothistopic,howtoapplygrey(ht250)castingoutthepartsrequiredthecastingmoldingprocesswerediscussedindetail,tousethesandcastinggatingsystemdesign,andhasmadethedetaileddesigndrawingsmadecasting,castingprocesschartandshapefigure.keywords：sandcastinggatingsystemcastingchartappearancemoldassemblydrawinght250目录第1章前言..................................................................................................................5第2章零件毛坯制造方法的确定....................................................................................62.1零件的工艺分析.....................................................................................................62.2毛坯制造方法的确定..............................................................................................8第3章零件材料的选择及对化学成分的要求...................................................................93.1零件材料的选择.....................................................................................................93.2本铸件熔炼时化学成分的要求................................................................................93.3ht250合金的熔炼...............................................................................................10第4章铸造工艺方案的确定..........................................................................................124.1铸造工艺方法.......................................................................................................12第5章零件毛坯的铸造工艺设计...................................................................................135.1铸件浇注位置的确定.............................................................................................135.2型芯设计..............................................................................................................165.3铸造工艺参数的确定.............................................................................................185.4绘制铸造工艺图.....................................................................................................235.5浇注系统设计........................................................................................................235.6冒口.....................................................................................................................285.7冷铁.....................................................................................................................29第6章铸造工艺装备设计..............................................................................................326.1.模样设及模样的种类............................................................................................326.2模样材质的选择及制造步骤...................................................................................326.3模样尺寸的计算....................................................................................................336.4模板.....................................................................................................................33第7章砂箱.................................................................................................................357.1砂箱选择和设计原则.............................................................................................357.2砂箱的结构设计....................................................................................................35第8章支座铸件芯盒的确定..........................................................................................368.1芯盒的种类及特点分析..........................................................................................368.2芯盒设计的一般原则.............................................................................................368.3手工芯盒的设计....................................................................................................37第9章铸型装配............................................................................................................379.1下芯原则..............................................................................................................379.2合型及定位...........................................................................................................389.3砂型、砂芯的烘干.................................................................................................389.4铸型装配图...........................................................................................................39结论...............................................................................................................................40致谢...............................................................................................................................41参考文献........................................................................................................................42第1章前言国家的综合国力是看这个国家的制造业发展水平。其中大型铸、锻件的生产水平，标志着这个国家制造业能力的水平，影响着国民经济。铸造历来是装备制造业得基础，但是我国的铸造行业装备制造业得薄弱环节。我国要从铸造大国迈进，必须尽快解决生产技术水平和人才专业素质问题。我国铸造业现状主要是：铸造企业的平均规模较小，专业化程度不高，铸造生产的技术和装备差，自主创新能力弱，铸件品质不高，距离铸造强国这个目标，还有很强的路要走，但是，国内还是对铸造的研究成果还是不断的推陈出新，铸造成形工艺依铸型材料、造型工艺和浇注方式不同，可分为砂型铸造和特种铸造两大类。砂型铸造适用于金属材料、大小、形状和批量不同的各种铸件，成本低廉，由砂型铸造生产的铸件占铸件总产量的90%以上，特种铸造是指砂型铸造以外的铸造工艺，常见的有熔模铸造、金属型铸造、压力铸造、低压铸造和离心铸造等。铸造具有很多特点，与其他形成工艺相比，它不受零件毛坯的重量，尺寸和形状的限制，重量从几克到几百吨，壁厚由0.3mm到1m，形状十分复杂，用机械加工比较困难，耗费大量机床工时，甚至难以制得得零件，都可以用铸造方法获得。铸造由于可选用多种多样成分，加之基本建设投资小，工艺灵活性大和生产周期短等优点因而广泛地应用在机械制造，矿山冶金交通运输，石化通用设备，农业机械，能源电力，轻工纺织，家用电器，土建工程，电力电子，航天航空，国防军工等国民经济各部门，是现代大工业机械的基础。铸造工艺是铸造生产的核心，是能否生产优质铸件的关键，这也是本论文的关键内容。古今中外都把提高和发展工艺水平，视为推动行业技术进步，满足经济和社会发展需要的一个重要组成部分。【篇三：铸造工艺毕业论文】摘要首先，分析零件的技术条件，明确零件的材料组成以及性能要求。对零件结构的铸造工艺性进行分析，明确零件的结构特点，找出可能存在的结构问题。提出改进措施或预防缺陷的措施。其次,根据零件结构特点，技术要求，生产要求，生产批量，生产条件选择铸造及造型方法。由零件的结构特点，提出多种浇注和分型方案，综合对比分析，选择最为理想的浇注位置及分型面。制定出详细的铸造工艺方案。再次,根据铸造工艺方案和零件的特点，选用适宜的工艺参数，设计铸件的补缩系统，浇注系统。绘制出铸造工艺图。最后,设计铸造工艺装备，包括模板和芯盒,绘制模板和芯盒的装配图。关键字：铸造工艺性；铸造工艺方案；铸造工艺参数；补缩系统；浇注系统abstractfirstofall,ianalysethetechnicalconditionsofthepartstoclearthematerialcompositionandperformancerequirementsofparts,analysethecastingprocessofthepartstructuretoclearthestructuralfeaturesofparts,identifypossiblestructuralproblemandproposemeasurestoimprovethestructureofpartsorthepreventionofdefective。secondly,accordingtostructuralcharacteristicsofparts,technicalrequirements,productionrequirements,productionvolume,productionconditionsichoosemethodsofcastingandmodeling.accordingtothestructuralcharacteristicsofcomponents,idevelopavarietyofpouringandpartingprogrammes,analysecomprehensivelyandcomparatively,choosethebestpouringpositionandpartingplananddevelopadetailedprogrammeofcastingprocess.again,accordingtotheprogrammeandstructuralcharacteristicsofparts,iselecttheappropriatetechnicalparameters,designfeedingsystemandpouringsystem.ofthecasting,mapoutthecastingprocessplans.finally,idesignthecastingprocessequipment,includingthetemplatesandcore-boxesanddrawtheassemblyplansoftemplateandcore-box.keyword:castingprocess；castingprocessprogramme；castingprocessparameters；feedingsystem；catingsystem摘要...............................................................................................................................iabstract.................................................................................................................ii绪论...............................................................................................................................11零件材料性能分析.................................................................................................22零件结构的铸造工艺性分析.................................................................................33铸造工艺方案的确定.............................................................................................73.1分型的分析比较与选择....................................................................................73.1.1方案一............................................................................................................73.1.2方案二............................................................................................................83.1.3方案三............................................................................................................93.2造型方案............................................................................................................93.3造型（芯）方法的选择..................................................................................103.4铸型种类的选择..............................................................................................103.5浇注位置的确定..............................................................................................113.6砂箱中铸件数目的确定..................................................................................113.7砂芯的设计.......................................................................................................113.7.1砂芯尺寸......................................................................................................113.7.2下芯顺序......................................................................................................124铸造工艺参数的选择...........................................................................................134.1铸件线收缩率..................................................................................................134.2机械加工余量..................................................................................................134.3起模斜度的选取..............................................................................................145铸件体积的计算...................................................................................................155.1实体部分体积..................................................................................................165.2去除部分体积..................................................................................................185.3铸件与铸型的体积..........................................................................................196冒口的设计...........................................................................................................206.1热节分析及热节圆的计算..............................................................................206.2冒口的设计......................................................................................................206.2.1初步方案......................................................................................................206.2.2改进方案a...................................................................................................216.2.3改进方案b...................................................................................................216.2.4改进方案c...................................................................................................226.6冒口的验算......................................................................................................237浇注系统的设计...................................................................................................247.1浇包的选择......................................................................................................247.2浇注系统的设计..............................................................................................257.3工艺出品率的验算...............................