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Comments for the Author:
Reviewer #1:
1.The disign of experiments in this paper lacks scientific approach. The results cannot give good reference value for extensive use.
2.The related works should be well documented.
3.Is the water-dipping process more effective than conventional approaches?The research does not provide clear conclusions. According to the author's ideas(shorten the solidification time in lower region),the air-cooled method may be better (safe and easy operation).
4.The sections of principles of numerical simulation of casting solidification are well documented in many books and papers. I recommend the deletion of that.
Reviewer #2:
1) The article should be modified, 1) English, 2) technology term, 3) The text should be clear & systemmatic,
Example:
a)"..The shell mold contained the following types of substrates: face coats,
intermediate coats, and backup coats. Each coat was made of two layers: a slurry layer and a stucco layer. In this study, the shell mold was made of zircon and fused silica materials, and the thickness of shell mold approximately is 8 mm" , this is previously known!
b) Abstrat: No focus.
c) The case of molding should be clear as a contribution, Re-design molding.
d) "2.1 Governing equations in numerical simulation" should be strengthed & verified according to data, discussion....
e) The case size of simulation molding can be clearly explained and discussed.
2) The key parameters of the water-dipping process is old technology. Both FEM code and ProCAST are commercialized software, and they have already been used in foundry industry for many year. |