《综合实验写作模板--.doc》由会员分享，可在线阅读，更多相关《综合实验写作模板--.doc（11页珍藏版）》请在三一文库上搜索。
1、Last week, our economic work Conference held today, held the Countys rural areas for work and five water treatment, three to split Conference, which this year was a matter of Thirteen-Five important meeting of our Countys economic and social development. The main task of the meeting was, on rural wo
2、rk and conscientiously implement the Central, provincial and municipal five water treatment, three to split series of important conferences, learn from the past, study deployment priority tasks this year. Just now, the XXX Deputy head and Deputy County magistrate, respectively, on the work of the XX
3、 was fully deployed, and put forward specific measures and requirements about is in place. County Environmental Protection Bureau, the XX town, town of XX 3 units for a position statement, resounding, demonstrated determination and confidence. Conference also recognition has advanced representative,
4、 this, I also representative County, and County Government, to by recognition of advanced said warm of congratulated! to rural, and water and three modified a split front General cadres workers extend sincere of greeting! following, I again told five points views: a, and deepening awareness, further
5、 enhanced work of sense and urgency since party of 18 session v plenary proposed has innovation, and coordination, and green, and open, and shared five big development concept Hou, rural and environment governance work can said was upgrade to has more high of strategy level, is Thirteen-Five build w
6、ell-off a top priority task. XX, County besides lingxi, Longgang, jinxiang, the Treasury, the hills, several industrial town outside the city centre, is basically belong to other rural areas, area, the vast rural population. Same time, the current and coming period, is the County into a crucial peri
7、od of the South Gate of XX beautiful, environmental regulation directly affects the effectiveness of the strategic objectives can not be achieved. Therefore, the focus on rural work and five water treatment, three to split, the XX economic and social development has an important role. Last year, thr
8、ough the joint efforts of the County, reform of the agricultural and rural development has made great progress in our County, environmental remediation and achieved initial results. Three agriculture agricultural modernization level continues to increase, new 4-level modern agriculture Park, release
9、d 20 agricultural leading enterprises above the county level, the County area of 200 acres of land more than eco-leisure, investments of more than 5 million Yuan reached more than more than 100 agricultural projects. Rural development has improved continuously, boutique line 1 completed the beautifu
10、l countryside, fine village 17, beautiful rural development conference was held in lingxi peach Lake in the city. Promote comprehensive rural reform, included in the provinces building three in one system of farmers cooperative economic organization first promoting the County. Improvement of farmers
11、内蒙古科技大学本科生综合实验报告题目：热轧Q345B钢水冷条件下35%、15%压下率组织和硬度的分析报告学院：材料与冶金学院专业：材料成型及控制工程姓名：李鹏 学号：1276806431指导老师：刘永珍 老师living standards, poor farmers in less than complete elimination of 4600 Yuan, 8949, 19008. Five waters rule: the County invested 2.169 billion yuan, similar counties line the citys first complete
12、 the 42 km of sewage pipe network construction, completion rate ranked first in the city, won the provincial rural sewage treatment work better; key pollution sources such as electroplating, papermaking, chemical industry management through verification and acceptance of the municipal government, th
13、e County removed Black and odorous River, River waste, beginning of river ecological restoration effects. Three modified a split aspects: County total demolition illegal area up 2.759 million square meters, completed City issued annual task of 153%, split against area ranking city second; completed
14、three modified area 4.846 million square meters, completed City issued annual task of 403%, ranking city third, which village in the a target completed total city ranking first; County Government was named city level three modified a split work advanced. These achievements are hard won and should be
15、 appreciated. However, we are fully aware, the new period, and work in the countryside and the environment facing higher standards and requirements, provincial party Committee offered to high level build a comprehensive well-off society goal requires no filth, dirty environment illegal buildings, in
16、to a well-off; municipal party Committee also proposes to build into the well-off benchmark goals of the city. Compared with the superior claim, South Gate of XX beautiful goal, my County San Nong and environment there are a number of weaknesses and gaps, highlighted in the following five aspects: f
17、irst, agriculture remained low pattern. Low is reflected in the quality and low; short, value added of the industry chain is low; 123 fusion yield low employee age, low quality. Small is reflected in smaller, specialized cooperatives throughout the County there were 3,396, but on the scale of too li
18、ttle. San is reflected in production, management, services, decentralized, centralized, standardized, brand, information and organizational level is not high. Second, the countryside is still in dirty phase. Dirty is dirty of rural sanitation situation has not changed. Chaos is a village in rural ho
19、using construction planning, construction of disorder, no drawings, no construction, no vetting four no phenomenon, heap lying there. Bad is the weak rural base, village governance is poor. Thirdly, farmers continued to be persistent look. Old is aging, rural labor force accounted for 70% over the a
20、ge of 50. Big is that the reform measures ground resistance, such as the transactions of property rights, land replacement; public service supply gap, rural education, health care, pensions and other services can not meet the demand still difficult for poverty alleviation, with emphasis on poverty a
21、lleviation and 191. Hard is a peasants, peasants. Four water effects still lacks7目录一、实验目的：1二、实验材料：1三、实验方案：1四、实验设备及器材：14.1金相切割机：14.2加热炉（箱式炉）：24.3二辊可逆式实验轧机：2五、实验步骤:25.1样品切割:25.2加热:25.3轧制:25.4磨样抛光:2六、实验结果分析：36.1淬火后得到的金相组织36.2分析造成金相组织不同的原因46.3分析不同压下率对硬度的影响56.4实验误差分析6七、总结6八、参考文献：7热轧Q345组织性能分析报告一、实验目的：1通过
22、实验室二辊可逆轧机对Q345钢进行轧制实验，分析其在相同加热温度、轧制温度、压下量的条件下，冷却方式对材料组织的影响。2.通过实验对Q345钢进行加热，熟悉加热炉的使用。 3.通过对式样Q345进行打磨，抛光，腐蚀，了解式样的加工过程。4通过观察金相组织，熟悉仪器的使用，分析不同加工条件下的金相组织。二、实验材料：本实验材料所用试样为低合金钢Q345B，其主要成分见表1。表1 Q345B钢化学成分牌号CSiMnCrPQ345B0.130.190.200.601.201.600.300.03三、实验方案：把试样加入加热炉中加热，当炉温接近1100时，在保温20分钟后，取出试样用事先调好的二辊可逆
23、式实验轧机进行35的变形，变形后立即将轧件放入水中。进行水冷淬火。 然后将试样进行切割，打磨，抛光，腐蚀，将处理后的试样放在金相显微镜下观察如有清晰组织进行拍照标注。四、实验设备及器材：1、金相切割机：QG-2金相试样切割机（以下简称切割机）是利用高速旋转的薄片砂轮来截取金相试样，它广泛地适用于金相实验室切割各种金属材料。由于本机附有冷却装置，用来带走切割时所产生的热量，因而避免了试样遇热而改变其金相组织。2、加热炉（箱式炉）：主要供金属机件或合金钢机件在空气中进行热处理加工之用。与控制柜配合使用，可手动或自动控制电炉的温度。箱式电阻炉结构主要由炉体、炉衬、炉底板、加热元件、炉门及控制系统等部
24、分组成。3、二辊可逆式实验轧机：二辊轧机分为可逆式和不可逆式，现在一般都是采用可逆式。二辊轧机主要是通过两个旋转的轧辊将轧件咬入轧机，实现来料尺寸的变化完成轧钢的。轧制板材时轧辊工作面是平面，通过压下装置调节辊缝大小来实现板材厚度的变化。五、实验步骤:1、样品切割:将试样切割成长约100mm，宽约20mm的试件。2、加热:（1）将加热炉手动控制，预设一个炉内温度1100（2）然后将加热炉设置成自动控制进行加热（3）安排人员随时观察加热炉，保证其正常，若有异常，立即关闭加热炉，改成手动，正常后再改成自动控制（4）加热达到预设温度后，将试样取出放到二辊轧机上轧制后，迅速将轧件放入水中淬火3、轧制:
25、轧制参数表试样编号试样代号及厚度尺寸（mm）轧制温度轧制道次冷却方式轧前厚度轧后厚度1号7.565.2911001水冷2号7.596.58水冷4、磨样抛光:（1）将冷却后的试样用打磨机进行打磨，将尖角部分打磨掉，并且打磨出一个比较平整的面。（2）将试样用砂纸进行磨样，先用最粗的砂纸，然后逐渐用较细的砂纸。（3）打磨试样时，保证始终的一个方向，一个平面上进行打磨（4）当一张砂纸打磨的只有一个方向的划痕时，可以换较细的砂纸打磨，这是需要将试样方向转90，当将前面的划痕完全盖住时，即可换另一张砂纸打磨，下面操作依序如此。（5）用最后一张砂纸磨样时，可以用水磨，磨完以后，表面平整无划痕。（6）用抛光机
26、抛光，在抛光时，一边抛光，一边向抛光机上加水和抛光液，加水时防止试样表面温度过高氧化，抛光液中有小颗粒，有助于试样抛光。（7）试样抛光后表面光滑如镜且无划痕即可。5、腐蚀与拍照:（1）将抛光后试样用酒精溶液清洗干净，然后用吹分机吹干（2）用4的硝酸酒精溶液滴在试样表面，晃动使溶液均匀，便于腐蚀（3）试样表面变色后清水冲洗用吹分机吹干（4）将试样置于光学显微镜镜头上方，调整焦距，便可早电脑上清晰观察到试样的显微组织（5）调整显微镜，使其镜头可以上下、左右移动，观察显微组织，选出效果最好的一部分显微组织拍照（6）选用不同放大倍数的镜头拍照，分别为200、500、1000倍（7）拍完之后标注即可六、
27、实验结果分析：1、淬火后，得到的金相显微组织如图1、2、3所示:图1为Q345B钢1100加热，热轧钢水冷条件下，不同压下率金相组织对比，放大倍数200倍，图2为Q345B钢1100加热，热轧钢水冷条件下，不同压下率的金相组织对比，放大倍数500倍，图3为Q345B钢1100加热，热轧钢水冷条件下，不同压下率的金相组织对比，放大倍数1000倍。 35% 15%图1.Q345B钢1100加热，水冷条件下，不同压下率的金相组织对比（放大倍数200倍） 35% 15%图2.Q345B钢1100加热，水冷条件下，不同压下率的金相组织对比（放大倍数500倍） 35% 15%图3.Q345B钢1100加热
28、，水冷条件下，不同压下率的金相组织对比（放大倍数1000倍）2、分析造成金相组织不同的原因:(1) 轧后冷却速度对轧后组织的影响： 由冷却曲线可知，不同的冷却速度对轧后组织有很大的影响。由于水冷冷却速度大于空冷冷却速度。水冷冷却时间为90s,根据冷却曲线图可看出水冷冷却曲线不经过珠光体转变区和贝氏体转变区，直接降低到Ms点以下发生马氏体转变，得到淬火马氏体组织。 (2) 轧制压下量对轧后组织的影响:临界变形量（2%10%）是能发生再结晶的最小变形量。当变形量小于2%10%，不发生再结晶；当变形量为2%10%，再结晶后晶粒粗大；当变形量大于2%10%，随变形量增加，晶粒变细。经塑形变形后，除了每
29、个晶粒内部出现大量的滑移或孪晶带外，随着变形程度的增加，原来的等轴晶粒将逐渐沿其变形方向伸长。当变形量很大时，晶粒变得模糊不清而呈现出一片如纤维状的组织，称为纤维组织。3、分析不同压下率对硬度的影响相同冷却方式，不同压下率的硬度如下表冷却硬度压下水冷水冷水冷水冷水冷35%91.592.194.392.391.815%92.692.191.792.493.54、实验误差分析1.实验时轧制温度不够精确；2.金相组织有黑点，腐蚀工作没有做好；3.组织及晶界不太清楚，磨得不到位；4.压下不够用精确导致误差；5.从加热炉中取出时，可能有温降；七、总结三周的综合实验即将结束，从坯料加热到最后的观察组织，整
30、个过程都使我受益匪浅，首先是制定实验的方案，通过查找书籍和搜索相关资料，整合优化，去伪存真，终于找到了适合的方案，然后又切身体会了制作样品的过程，亲自加热冷却，结合书本的知识懂得了更多，了解的更深入，理论结合实际不断丰富了我的实践经验。在这三周里不仅巩固了知识，也提高了动手能力，并且让我懂得了做事情要有足够的耐心和细心。通过这三周的实验，我了解到了轧制的一般过程，学会了如何制备金相试样，以及如何观察金相组织。我自己也动手制备了金相试样，亲自操作金相显微镜观察金相组织并取得照片在实验的过程中，从磨样到观察组织，我反复做了还几次，特别是磨样时，总是出现划痕，而且腐蚀时总是掌握不好分寸。不过，最终还
31、是成功的做出了试样。得到了正确的组织。实验的过程中，通过实际动手，我学会了使用加热炉、砂轮机、轧机、切割机、显微镜等设备。这次综合实验是我们将课本所学知识运用到实际中的大好机会，也确实获得了非常宝贵的实践经验，增强了自身的动手能力最后，我要感谢，非常感谢我的导师刘永珍老师。她为人随和热情，治学严谨细心。在闲聊中她总是能像知心朋友一样鼓励你，在实验过程中他也总会以“专业标准”严格要求你，从制定方案开始，一直到最后实验的结束, 老师始终认真负责地给予我指点，教我如何磨样，腐蚀，抛光等。正是刘老师的无私帮助与热忱鼓励，我的综合实验才能够得以顺利完成，谢谢刘老师。八、参考文献：1.杨淞波,王国文.SS400钢的特点分析与生产控制J.河南冶金2006,14:1101112.崔忠圻,谭耀春.金属学与热处理M.哈尔滨工业大学,机械工业出版社,20010.10;3.颜飞 ,余驰斌 ,胡敏，等。Q235E 钢冷却过程中相变的研究J.湖北：武汉科技大学材料与冶金学院，2005,2:58；4.张宪庆. Q195、Q215和Q235钢生产的比较J. 鞍钢技术,1998,06:8-11.