锻压技术

基于计算机模拟的安全阀阀体多向模锻精密成形工艺

英文标题：Multi-directional die forging precision forming process of safety valve body based on computer simulation

作者：裴颖脱

单位：天津工业职业学院

分类号：TG315.2

出版年,卷(期):页码：2022,47(5):12-18

摘要：

以安全阀阀体为研究对象，根据其结构特征，提出了多向模锻精密成形工艺方案。通过数值模拟技术，分析了安全阀阀体的成形过程，研究了不同凸模结构对安全阀阀体成形的影响。结果发现，采用复合凸模结构时材料流动更合理，而采用单一凸模结构容易出现材料折叠缺陷。而后，基于复合凸模结构，研究了左右复合凸模的不同加载速度比对多向模锻精密成形过程的影响，并从安全阀阀体锻后的等效应变分布、温度分布、各凸模最大受力情况以及最小合模力等方面进行了对比分析。结果表明：当左右复合凸模的加载速度比为1.76∶1时，安全阀阀体锻后的等效应变及温度分布更为均匀，安全阀阀体成形效果更好，同时各凸模最大受力及最小合模力也更小，更益于延长模具的使用寿命。

Taking the safety valve body as the research object, according to its structural characteristics, a multi-directional die forging precision forming process scheme was proposed. The forming process of the safety valve body was analyzed, and the influences of different punch structures on the forming of the safety valve body were studied by the numerical simulation technology. The results show that the compound punch structure makes the material flow more reasonable, while the single punch structure is prone to material folding defects. Then, based on the structure of compound punch, the influences of different loading speed ratios for left and right compound punches on the precision forming process of multi-directional die forging were studied, and the comparative analysis was carried out from the aspects of equivalent strain distribution, temperature distribution, maximum force condition of each punch and minimum clamping force for the safety valve body after forging. The results show that when the loading speed ratio of left and right compound punches is 1.76∶1, the equivalent strain and temperature distributions of the safety valve body after forging are more uniform, the forming effect of the safety valve body is better, and the maximum force and the minimum clamping force of each punch are also smaller, which is more beneficial to prolong the service life of die.

基金项目：

天津市“十三五”高等职业教育教学改革研究项目(2018-116)；天津市高等职业技术教育研究会2019年度课题（2020-4040）

作者简介：裴颖脱（1982-），男，硕士，副教授，E-mail：pyt198207@163.com

参考文献：

[1]翟启超,刘殿坤,段淼淼,等.液体安全阀排量性能研究及其工程应用[J].流体机械,2017,45(9):11-15.

Zhai Q C,Liu D K,Duan M M,et al.The pressure relief valve discharge capacity research and engineering application[J].Fluid Machinery,2017,45(9):11-15.

[2]林建东,乔光谱.安全阀RBI结果在石化行业的应用与经济性分析[J].压力容器,2020,37(9):68-72.

Lin J D,Qiao G P.Application of RBI assessment and economic analysis of relief valve in petrochemical industry[J].Pressure Vessel Technology,2020,37(9):68-72.

[3]张殿杰,刘建芳,聂奎胜,等.薄壁轮辐铝合金轮毂低压铸造工艺仿真及试验[J].特种铸造及有色合金,2020,40(7):753-758.

Zhang D J,Liu J F,Nie K S,et al.Simulation and test of die casting process for aluminum alloy wheel hub with thin-walled spoke[J].Special Casting & Nonferrous Alloys,2020,40(7):753-758.

[4]韩志强,赵忠兴.气动元件阀体低压铸造充型过程的数值模拟[J].沈阳理工大学学报,2019,38(6):39-42，46.

Han Z Q,Zhao Z X.Numerical simulation of low pressure casting for pneumatic valve body[J].Journal of Shenyang Ligong University,2019,38(6):39-42，46.

[5]宁兆生,包有宇,郑松翔,等.复杂钛合金阀体的铸造工艺研究[J].铸造,2018,67(12):1110-1114.

Ning Z S,Bao Y Y，Zheng S X,et al.Study on casting process of complex titanium alloy valve body[J]. Foundry,2018,67(12):1110-1114.

[6]顾文俊,李俊杰,赵坤民.空排止回阀阀体多向模锻工艺分析[J].热加工工艺,2020,49(11):81-85.

Gu W J,Li J J,Zhao K M.Analysis of multi-directional die forging process for valve body of air vent check valve[J].Hot Working Technology,2020,49(11):81-85.

[7]罗剑.一种阀座的胎模锻成形工艺[J].机械工程与自动化,2013，(6):99-100.

Luo J.An air-hammer forging process of a valve seat[J].Mechanical Engineering & Automation,2013，(6):99-100.

[8]刘光辉,刘华,王涛,等.仪表阀体多向可控精密成形工艺[J].锻压技术,2020,45(3):8-13.

Liu G H,Liu H,Wang T,et al.Multi-directional controllable precision forming for instrument valve body[J].Forging & Stamping Technology,2020,45(3):8-13.

[9]刘航,李伟,张镜斌.7075铝合金三通阀多向加载成形过程模拟[J].热加工工艺,2021,50(9):101-104.

Liu H,Li W,Zhang J B.Simulation of multi-directional loading forming process of 7075 aluminum alloy tee valve[J].Hot Working Technology,2021,50(9):101-104.

[10]王波,张加正.四通阀体热锻成形CAE分析及工艺优化[J].锻压技术,2021,46(5):7-11.

Wang B,Zhang J Z.CAE analysis and process optimization on hot forging for four-way valve body[J].Forging & Stamping Technology,2021,46(5):7-11.

[11]姜雪鹏,潘晴,李毅波,等.T型三通多向模锻过程变形力预测方法[J].塑性工程学报,2021，28(5):113-125.

Jiang X P,Pan Q,Li Y B,et al.Deformation force prediction method of tee valve in multi-directional die forging process[J].Journal of Plasticity Engineering,2021，28(5):113-125.

[12]孙国柱.基于有限元法的三通管接头多向模锻成形仿真与优化[J].锻压技术,2021,46(2):28-33.

Sun G Z.Simulation and optimization on multi-directional die forging for tee pipe joint based on finite element method[J].Forging & Stamping Technology,2021,46(2):28-33.

[13]江荣忠,王志录,张元东,等.石油阀体锻造工艺与模具设计[J].热加工工艺,2018,47(9):128-130，134.

Jiang R Z,Wang Z L,Zhang Y D,et al.Forging process and die design of petroleum valve bodies[J].Hot Working Technology,2018,47(9):128-130，134.

服务与反馈：

【文章下载】【加入收藏】