专业版：中英球铁冒口计算资料库.doc

PAGE BACK CALCULATION OF RISERS FOR DUCTILE IRON 球铁冒口计算 ir G HENDERIECKX GIETECH BV CONTENT 目录 INTRODUCTION介绍 BASICS基础 2.1 Introduction介绍 2.2 Shrinkage Type of solidification缩松和凝固类型 2.3 Temperature in mould型内温度 2.4 Riser chill venting冒口冷铁出气孔 IMPORTANT ITEMS重要内容 3.1 Introduction介绍 3.2 Mould型腔 3.3 Pouring temperature浇铸温度 3.4 Chemical composition化学成分 3.5 Metallurgical quality冶金质量 CALCULATION计算 4.1 PROCEDURE流程 4.2 CASTING DATA相关数据 4.3 Chemical composition化学成分 4.4 RISER MODULUS - Use of Nomogram冒口模数-使用列线图 4.5 Riser dimensions冒口尺寸 4.6 Number of risers冒口数量 4.7 VENTING出气孔 4.8 INGATES内浇道 SUMMARY OF REMARKS总结 6. CONCLUSION结论 ADDENDUM 1 EXAMPLE OF RISER CALCULATION 附件1：冒口计算范例 ADDENDUM 2 TEMPERATURE IN THE MOULD 附件2：型内温度 ADDENDUM 3 RISERLESS DESIGN 附件3：无冒口设计 INTRODUCTION 介绍 The author has always obtained very good results with the Foseco system, combined with an extra attention to the ??metallurgical quality?? of the metal. This system will be the basic of this calculation. 根据Foseco 体系，并结合?冶金质量?，作者有非常好的理解。 这个体系是计算的基础。 Before the start of calculations, the basic of the shrinkage of ductile iron, in the range from the pouring temperature till the state of complete solidification, will be reminded. 开始计算前，要注意浇铸温度至完全凝固间的球铁收缩。 Also the important items, with a high influence on the shrinkage behaviour of ductile iron, will be considered. Items as mould strength, pouring temperature, chemical composition and metallurgical quality of the metal, must be taken in account. 另外，也要考虑影响球铁收缩的项目，如型腔强度、浇铸温度、化学成分和铁水的冶金质量。 The calculation will be done, step-by-step. The base nomogram can be found in the file “Ductile iron risers.xls”. 要逐步完成计算。可以在“球铁冒口”表格中找到列线图。 The continuous argument about the fact if the risers should be calculated before the pouring system can be solved very easily because both are right: 如果以下两点是正确的，哪么关于是否应该在计算浇铸系统前计算冒口这个问题就很容易解决了： If the casting will be made with “hot risers”, the risers should be calculated firs如果铸件使用的是“热冒口”，应该先计算冒口 If the castings are p