水管接头阀体铸造工艺设计
摘要：分析了水管接头阀体的结构特点，选择QT400-18U-LT作为阀体铸造材料，确定铸造分型面与基本参数。在说明书中说明铸造工艺设计过程，查阅相关资料进行铸件的结构分析；设计砂芯、浇注系统、冒口、冷铁、拉筋、出气口；铸造工装设计；模板设计；砂箱设计等内容。利用Auto CAD绘制装配图，铸件图，红蓝工艺图。提出铸造常见缺陷等问题，并提出的解决方法。
关键词：分型面；砂芯；砂箱
The water connection valve casting process design
Abstract:Analyses the structureof the body, choose the nodular cast iron qt400-18, parting surface casting and basic parameters. Explain the process of casting process design in the specification, to consult the relevant materials to the casting structure analysis; Design of sand core, pouring system, riser and chill, brace, the outlet; Casting tooling design; Template design; Sand box design, etc. Use of Auto CAD assembly, casting figure, red and blue process diagram. Put forward the common casting defects, and put forward solutions.
Key words: parting surface; Sand core; Sand box
目 录
引言...............................................................1
第一章、铸造工艺方案的确定.........................................1
1.1铸造工艺设计的基本内容..........................................1
1.2型砂配方的确定..................................................1
1.3浇注位置及分型面的确定..........................................2
第二章、铸造工艺参数及其选择.......................................5
2.1铸造收缩率......................................................5
2.2铸件尺寸公差和机械加工余量......................................5
2.3最小铸出孔、槽与拔模斜度........................................5
2.4工艺补正量、分型负数和反变形量..................................5
2.5砂芯负数、分型负数..............................................6
第三章、砂芯设计...................................................6
3.1设置砂芯的基本原则..............................................7
3.2砂芯的固定和定位................................................7
3.3芯头的尺寸和间隙................................................7
3.3.1芯头的结构....................................................7
第四章、浇注系统设计...............................................7
4.1浇注系统的组成..................................................7
4.1.1浇口杯设计....................................................9
4.1.2直浇道和浇口窝设计............................................9
4.1.3横浇道和内浇道设计...........................................11
4.2浇注时间的确定.................................................12
第五章、冷铁、拉筋和出气孔设计与砂芯的烘干........................12
5.1铸铁件冷铁设计.................................................12
5.2出气口设计.....................................................12
5.3砂芯的烘干.....................................................13
第六章、铸造工装设计..............................................13
6.1模样设计.......................................................13
6.1.1制造模样的材料...............................................13
6.1.2金属模样的结构及其壁厚.......................................13
6.2模板设计.......................................................13
6.3砂箱设计.......................................................14
6.3.1砂箱的定位方式、结构和尺寸...................................16
6.4芯盒设计.......................................................16
第七章、生产该铸件可能产生的缺陷及防止措施、......................17
7.1多肉类缺陷.....................................................18
7.2残缺类缺陷.....................................................24
7.3夹杂类缺陷.....................................................25
结论...............................................................27
参考文献...........................................................28
参考文献
[1]铸造工程师手册写组.铸造工程师[M].北京：机械工业出版社,1997.12.
[2]李弘英.铸造工艺设计[M].北京：机械工业出版社,2005.2.
[3]汽车工程手册编辑委员会.汽车工程手册[M].设计篇：人民交通出版社,2001.
[4张伯明.铸造手册1铸铁.[M]中国机械工程学会铸造分会组编出版社,2011.
[5]李新亚.铸造手册中国机械工程学会铸造分会.铸造工艺(第3版)[M].机械工业出版社,2011.09.01.
[6]温平书籍.新编铸造技术数据手册书籍[M].机械工业出版社,2012.
[7]铸造缺陷及其对策[M].机械工业出版社出版,2008.
[8]曹瑜强.铸造工艺及设备[M].北京：机械工业出版社,2008.1.
http://www.bysj360.com/html/6486.html
http://www.bysj360.com/html/6469.html
http://www.bysj360.com/html/6483.html
