A History of Development of the Green Sand Molding Machine

2019 ◽  
Vol 2019.68 (0) ◽  
pp. 405
Author(s):  
Shoji ISHIDA
2008 ◽  
Vol 2 (4) ◽  
pp. 280-284 ◽  
Author(s):  
Makoto Fukihara ◽  
◽  
Hiroyasu Makino ◽  
Kunihiro Hashimoto

Green sand molding is indispensable in the mass production of iron castings such as those used for automobiles. Green sand processing equipment, which plays an important role in maintaining casting quality by supplying steadily mixed sand, includes that used in mold removal and sand recovery, sand cooling, storage, mixing, and supply to the molding machine, as detailed in the sections that follow.


10.29007/4xq8 ◽  
2018 ◽  
Author(s):  
Tushar Desai ◽  
Vina D. Chauhan ◽  
Dhara P. Trivedi

Bolster and Stripper Assembly is used to support mold box, match plate and pattern for mold preparation with green sand in high pressure molding machine. Different types of molding machines used for preparation of mold from green sand are flask type molding machine and flask less type molding machine. Commonly used molding machine is flask type molding machine with bolster and stripper assembly for mold preparation.This paper explains design and analysis of bolster and stripper assembly for manufacturing required size mold in high pressure green sand molding machine.


Author(s):  
Sara Lorenzini

In the Cold War, “development” was a catchphrase that came to signify progress, modernity, and economic growth. Development aid was closely aligned with the security concerns of the great powers, for whom infrastructure and development projects were ideological tools for conquering hearts and minds around the globe, from Europe and Africa to Asia and Latin America. This book provides a global history of development, drawing on a wealth of archival evidence to offer a panoramic and multifaceted portrait of a Cold War phenomenon that transformed the modern world. Taking readers from the aftermath of the Second World War to the tearing down of the Berlin Wall, the book shows how development projects altered local realities, transnational interactions, and even ideas about development itself. The book shines new light on the international organizations behind these projects—examining their strategies and priorities and assessing the actual results on the ground—and it also gives voice to the recipients of development aid. It shows how the Cold War shaped the global ambitions of development on both sides of the Iron Curtain, and how international organizations promoted an unrealistically harmonious vision of development that did not reflect local and international differences. The book presents a global perspective on Cold War development, demonstrating how its impacts are still being felt today.


2020 ◽  
Vol 19 (12) ◽  
pp. 2358-2371
Author(s):  
S.A. Moskal'onov

Subject. The article addresses the history of development and provides the criticism of existing criteria for aggregate social welfare (on the simple exchange economy (the Edgeworth box) case). Objectives. The purpose is to develop a unique classification of criteria to assess the aggregate social welfare. Methods. The study draws on methods of logical and mathematical analysis. Results. The paper considers strong, strict and weak versions of the Pareto, Kaldor, Hicks, Scitovsky, and Samuelson criteria, introduces the notion of equivalence and constructs orderings by Pareto, Kaldor, Hicks, Scitovsky, and Samuelson. The Pareto and Samuelson's criteria are transitive, however, not complete. The Kaldor, Hicks, Scitovsky citeria are not transitive in the general case. Conclusions. The lack of an ideal social welfare criterion is the consequence of the Arrow’s Impossibility Theorem, and of the group of impossibility theorems in economics. It is necessary to develop new approaches to the assessment of aggregate welfare.


2019 ◽  
Vol 61 (4) ◽  
pp. 37-42
Author(s):  
M.O. Nagornaya ◽  
◽  
S.V. Nebratenko ◽  

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