Analysis of back calculation results of interface heat transfer coefficient in sand casting
Based on the temperature field data measured by pouring experiment and the established matlab inverse calculation program, the interface heat […]
Based on the temperature field data measured by pouring experiment and the established matlab inverse calculation program, the interface heat […]
It mainly arranges and analyzes the measured and back calculated data, calculates the interface heat flow and interface heat transfer
At present, the research on the inverse calculation of interfacial heat conduction in sand mold casting process mainly focuses on
In order to overcome the shortcomings in the traditional production of ADI grinding balls, it is necessary to find cheap
High chromium white cast iron is selected as the grinding ball of high chromium cast iron, and the mass fraction
In the process of metal solidification, the interfacial heat transfer coefficient is affected by many factors, such as sand casting
Low chromium white cast iron is used as the grinding ball of low chromium cast iron. The chromium content is
The study of interfacial heat transfer coefficient in China is relatively late. Inspired by foreign scholars, Hao Weiwei, Chen Jiayu
In recent ten years, based on the research on the development of grinding ball materials at home and abroad, China
1. Causes Cracking of the supporting wheel The crack shape of the casting defect is fine and straight. The crack
The systematic study of wear-resistant materials has a history of more than 100 years. Different types of wear-resistant materials, such
Since the 1950s, casting engineers have found that the interfacial heat transfer coefficient has a great influence on the change
1. Causes In the semi finishing stage after quenching and tempering, it was found that the nozzle end face had
1. Causes Through the collection and analysis of more than 100 casting idlers, a total of 12 casting idlers have
Compared with foreign countries, China’s foundry CAE technology started relatively late, but developed rapidly. In the late 1970s, the foundry
1. Causes The sand mold at the upper part of the outer rim of the casting supporting roller is a
Industrial rotary kilns are widely used in cement, metallurgical pellets, active lime, chemical and other industries. The supporting roller is
The casting simulation technology originated in the 1940s. With the support of the American Foundry Association, Professor paschkis of Columbia
Sand mold casting is a process of pouring high-temperature liquid metal into the mold cavity, cooling and solidification into rough
The casting process design and casting process of high strength and Toughness Nodular Cast Iron for automobile hub support were
Starting from the practical application of sand casting production process, the process design and material properties of nodular cast iron
The casting process of hub support is simulated and calculated by using magma simulation software, the shortcomings of the original
There are two main classification methods of gating system: one is divided into closed type, semi closed type and open
The selection of chemical composition should be considered from two aspects: ensuring good mechanical properties and casting properties of castings.
The steam turbine end cover is used to seal the steam in the condensate. It has high requirements on the
In order to obtain nodular cast iron that meets the requirements of high strength and toughness of automobile hub support,
The main function of the casting process numerical simulation software is to simulate and predict the formation of shrinkage porosity
1. Solutions to “gap” casting defects After many tests, we finally understand that we must systematically match the three process
Furan resin sand is used for molding, and the 24h strength of sand mold (core) is controlled σ b≥1.0 MPa;
The causes of casting defects are all from the poor casting process design and structural design of the mold; The