铸造手册大全:金属铸造工艺、冶金技术和设计第5册 浇注系统设计基础、组成和设计实例
定 价:88 元
- 作者:[英] 约翰·坎贝尔(John Campbell) 著
- 出版时间:2018/10/1
- ISBN:9787560373409
- 出 版 社:哈尔滨工业大学出版社
- 中图法分类:TF1-62
- 页码:
- 纸张:胶版纸
- 版次:
- 开本:16开
内容简介:《铸造手册大全:金属铸造工艺、冶金技术和设计》由Elsevier授权影印出版。原版为全一册(共19章),考虑到内容的相对独立以及使用方便,影印版分为6册。
第1册熔体·卷入·流动(第1~3章)。主要介绍金属熔体,包括熔体与周围环境可能发生的反应、熔体的流动性和可能存在的各种卷入性缺陷。
第2册铸型和型芯·凝固组织·铸造合金(第4~6章)。第4章主要介绍铸型和型芯,包括铸型的性质、铸型和金属之间可能发生的反应。第5、6章主要介绍凝固组织的生长和可能存在的问题以及各种典型的铸造合金组织。
第3册孔洞·热裂和冷裂-铸件的性能(第7~9章)。第7、8章主要介绍铸件中可能出现的缩孔和裂纹等缺陷。第9章主要介绍铸件的力学性能、抗氧化性能、耐腐蚀性能、密封性能以及表面处理。
第4册获得优质铸件的10项准则(第10章)。
第5册浇注系统设计基础、组成和设计实例(第11~13章)。主要介绍浇注系统的设计、组成,并给出浇注系统设计的实例分析。
第6册熔炼·造型·铸造·凝固(第14-19章)。分别介绍铸造合金的熔炼、铸型材料和铸造成型方法的选择、凝固技术和铸件尺寸精度的控制、铸件的后续处理和探伤等。
编辑推荐:《铸造手册大全:金属铸造工艺、冶金技术和设计》为从事铸造行业的科研人员和工程技术人员提供全面的指导和参考。目前国内尚没有如此完整介绍金属铸造工艺、冶金技术和设计、铸件质量控制和后续处理以及性能检测等方面的手册。
前言
In this first update of the Handbook, the major revisions are probably those relating to running system design in wluch thevestiges of filling defects have finally been eliminated from castings.
Thus, the powerful benefits of contact pouring (in which the uruversal conical trumpet decorating all traditional filling systems is now elinunated) is finally shown to have been hugely underestimated by a number of foundries. Contact pouring has probably been the most important (and the most simple and zero-cost) initiative to revolutionise quality in castings. In addition, the adoption of various forms of tangential filter designs to gates has finally eliminated the problem of the entrainment of priming bubbles. These residual bubbles have long impaired the benefits of previous filling systems.
Gravity pouring has now advanced to the point at which I find myself having to admit that it starts to threaten my cherished and favoured casting production system: countergravity.
This is seen to be especially true for those low-pressure systems which use a refractory lining for the pressurised furnace. I only recently discovered the hugely damaging emission of bubbles from these linings during depressurisation of the furnace. This problem has clearly been a major source ofimpaired castings in the low-pressure casting industry and has hampered this industry since its beginnings.
The use of my pneumatic pump is described for the first time. It would lower costs and solve most of the problems of this industry. Thus,l continue to stand by countergravity as the optimum casting system where it can be used. My hope is that it will be teamed up with a good melting and metal handling system. Only careful foundry design will minimise bifilm populations in metals. Only when castings can be produced substantially free from bifilms will we enjoy the full benefits of castings, and metals in general, resistant to hot tearing, cracking, blisters, corrosion pitting and attack of grain boundaries, plus the benefits of extraordinary mechanical properties, potentially eliminating future failure by fracture or fatigue.
These are heady predictions. However, early results in foundries are already indicating that beautiful defect-free castings with revolutionary metallurgical benefits appear to be routinely attainable. Despite challenges from the undoubtedly unique benefits of such new processes as additive manufacture, my hope for the future for castings is based on the adoption of simple principles which could not only secure the future of our casting industry, but improve the welfare and environment of all of us whose lives depend on it.
作者简介: 作者John Campbell(约翰·坎贝尔)OBE,英国伯明翰大学(铸造专业)教授,铸件行业国际领先人物,Cosworth Casting的创始人及Baxi铸造方法的发明人。
目录
第二部分 浇注系统设计
第11章 浇注系统设计基础
11.1 最大充型速度要求
11.2 重力浇注
11.3 降低和排除重力浇注问题
11.4 表面张力控制下的充型
第12章 浇注系统组成
12.1 浇口杯
12.2 直浇道
12.3 横浇道
12.4 内浇道
12.5 液流缓冲单元
12.6 防涡流单元
12.7 夹杂物的控制:过滤和集渣
12.8 过滤器
第13章 浇注系统设计实例
13.1 设计方案
13.2 浇注方案的确定
13.3 质量和体积的估计
13.4 封闭式和开放式
13.5 浇注时间的选择
13.6 薄壁件和缓慢充型
13.7 充型速度
13.8 浇口杯的设计
13.9 直浇道的设计
13.10 横浇道的设计
13.11 内浇道的设计