Determination of interfacial heat transfer coefifcient and its application in high pressure die cast

来源 :中国铸造 | 被引量 : 0次 | 上传用户:fengfeiyuren
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In this paper, the research progress of the interfacial heat transfer in high pressure die casting (HPDC) is reviewed. Results including determination of the interfacial heat transfer coefifcient (IHTC), inlfuence of casting thickness, process parameters and casting aloys on the IHTC are summarized and discussed. A thermal boundary condition model was developed based on the two correlations: (a) IHTC and casting solid fraction and (b) IHTC peak value and initial die surface temperature. The boundary model was then applied during the determination of the temperature ifeld in HPDC and excelent agreement was found.
其他文献
广卅白云山独特的温湿气候环境影响而改变茶花的开花期。这样有利的环境条件,可以多栽培茶花,本文谈了栽培的切身体会. Guangyu Baiyun Mountain unique climate changes in
Chicken manure with similar content of copper and zinc was chosen to conduct a composting experiment to investigate the changes of organic carbon and humus subs
Compared to traditional high-pressure die casting(HPDC),horizontal squeeze casting(HSC)is a more promising way to fabricate high-integrity castings,owing to a r
本文介绍了消化内镜应用中几种常见故障的原因及避免方法.
Squeeze casting is a technology with short route,high efficiency and precise forming,possessing features of casting and plastic processing.It is widely used to
The effects of ultrasonic vibration (UV) treatment on microstructure of semi-solid aluminum alloys and the application of UV in rheocasting process are reviewed
Metallic glasses(MG)represent an interesting group of materials as they possess outstanding physical,chemical and mechanical properties compared to their crysta
As the key parts of an aero-engine, single crystal (SX) superalloy turbine blades have been the focus of much attention. However, casting defects often occur du
As most Mg alloy products are now produced by a casting process,the development of high strength cast Mg alloys can promote their further applications and has a
Being used more and more widely in engineering, Al-Si alloys comprise about 80% of all kinds of aluminum alloys, which are the most widely utilized nonferrous a