1) shrinkage and surface sink
缩孔、缩凹
2) depression
[英][dɪ'preʃn] [美][dɪ'prɛʃən]
外缩凹孔
3) depression
[英][dɪ'preʃn] [美][dɪ'prɛʃən]
外缩孔，凹陷(铸疵)
4) shrinkage
[英]['ʃrɪŋkɪdʒ] [美]['ʃrɪŋkɪdʒ]
缩孔缩松
1.
In this paper, the development of three dimentional numerical simulation are further presented, and the key problems in numerical simulation──processes of initial condition, boundary condition and more than ten kinds of methods predicted shrinkage are discussed.
本文进一步论述了铸件凝固过程的三维数值模拟的发展现状，并着重讨论了数值模拟中的关键问题──初始条件和边界条件的处理以及十余种缩孔缩松缺陷的预测判据和应用特点。
5) Shrinkage cavity and porosity
缩孔缩松
1.
Domestic solidification simulation software only provides a few prediction methods for shrinkage cavity and porosity formation in castings.
为解决国内凝固模拟软件中缩孔缩松预测判据比较单一的问题 ,满足用户使用多种判据从不同角度分析铸件缩孔缩松形成的需要 ,从实际应用出发 ,在自主开发的 FT-Star凝固模拟软件的基础上 ,改进和增添了多种缩孔缩松预测判据。
6) shrinkage and porosity
缩孔缩松
1.
The forming mechanism of shrinkage and porosity of the hub castings in the"Transit" car have been investigated by computer simulating and temperature measuring of during the casting solidified.
本文以Transit汽车前桥轮毂铸件为例,针对小型轮毂球铁件产生缩孔缩松缺陷现象,采用计算机模拟技术模拟铸件的温度场,进行铸件孤岛检测,分析缩孔缩松缺陷产生过程,并用多通道数据采集器测定铸件凝固过程中温度场的分布特点,分析研究了此类铸件产生缩孔、缩松缺陷的机理,对消除铸件缩孔、缩松缺陷的工艺方法进行了讨论。
补充资料：凹模壁厚及凹模垫板尺寸
型腔壁部投影面积 壁 厚， 毫 米
F， 厘米2 h1 h2 h3 h4 h5
<5 15~20 30~40 <=10 15~20 30~40
>5~10 20~25 40~50 10~15 20~25 40~55
>10~50 20~30 50~60 15~20 20~30 55~65
>50~100 30~35 60~75 20~25 30~40 65~70
>100~200 35~40 75~85 25~30 40~50 70~75
>200 >40 >85 30~35 50~60 >80
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条