Challenges and Future Prospective of Alternative Materials to Silica Sand for Green Sand Mould Casting: A Review

2021 ◽  
Author(s):  
Jain Sadarang ◽  
Ramesh Kumar Nayak ◽  
Ishim Panigrahi
Keyword(s):  
Silica Sand ◽  
Green Sand ◽  
Alternative Materials ◽  
Sand Mould ◽  
Mould Casting

scholarly journals Improving of Green Sand-Mould Quality using Taguchi Technique

2021 ◽  
Author(s):  
Sampath Boopathi ◽  
Keyword(s):  
Complex Shape ◽  
Green Sand ◽  
Large Size ◽  
Parameter Variations ◽  
Significant Phenomenon ◽  
Minimum Number ◽  
Sand Mould ◽  
Maximum Permeability ◽  
Mould Casting

The green sand mould casting is an inevitable process to make large size and complex shape of the industrial components. The quality of green sand in mould is a significant phenomenon on casting quality. In this research, the number of ramming, sand thickness mould, and percentage of additives (western bentonite) mixing with sand have been considered to study the effects on permeability and hardness of mould by L27 orthogonal array. Greensand mould experiments have been conducted in the industry to observe the output parameter variations by Taguchi statistical analysis. It was revealed that the maximum permeability and minimum sand hardness have been obtained from the minimum number of ramming, thin sand thickness, and minimum mixing of additives in the sand. The confirmation tests were conducted to validate the predicted control parameter on responses.

Multi Response Optimization of Green Sand Moulding Parameters Using Taguchi-DEAR Method

2019 ◽  
Vol 895 ◽  
pp. 1-7
Author(s):  
M.J. Sandeep ◽  
Patel G.C. Manjunath ◽  
Ganesh R. Chate ◽  
Mahesh B. Parappagoudar ◽  
Umesh M. Daivagna
Keyword(s):  
Casting Process ◽  
Silica Sand ◽  
Cow Dung ◽  
Green Sand ◽  
Pareto Analysis ◽  
Design Flexibility ◽  
Complex Shapes ◽  
Response Optimization ◽  
Sand Mould ◽  
Moulding Sand

Green sand casting is treated as the most versatile casting process due to their excellent design flexibility that offer complex shapes and ability to reclaim silica sand. The modern foundries are looking for alternate moulding materials to partially replace the high cost silica sand. Cow dung is a naturally available eco-friendly binding as well as additive material and is used to partially replace the silica sand. Improper choice of the combination of moulding sand variables, such as degree of ramming, percentage of cow dung, percentage of clay, and percent of water will affect the moulding sand properties and thereby quality of casting. In the present work, Taguchi method is employed to plan and conduct experiments. Pareto analysis of variance is performed to know the contribution of variables on the moulding sand properties (i.e. compression strength, permeability, loss-on-ignition). Taguchi DEAR method is used to determine the single optimal levels of input factors that enhances the performances of all the sand mould properties. Percent of clay and cow-dung found to be the most dominating factor towards all the sand mould properties.

Investigation of flowability of the green sand mould by remote control of portable flowability sensor

2021 ◽  
Vol 112 (2) ◽  
pp. 70-76
Author(s):  
D. Abdulamer
Keyword(s):  
Remote Control ◽  
Wireless Transmission ◽  
Green Sand ◽  
Compaction Process ◽  
Moulding Process ◽  
Control Behavior ◽  
Sand Mould ◽  
System 1 ◽  
And Control ◽  
Non Destructive

Purpose: The useful data and information during the sand compaction process steps should be collected. Direct measurement methods of the sand mould properties during the actual moulding process are not adopted yet. Design/methodology/approach: In this work, a remote control system [1] have been integrated into a new flowability sensor [2]. Findings: To overcome the complexity of the tools and equipment that existed in laboratory, and in foundry. Research limitations/implications: In order to investigate, and control behavior of the moulding process of bentonite-bonded green sand process, the sensors have been equipped with the Bluetooth technology for a wireless transmission of the measured data to computers. Originality/value: This technique contributes to improve of the compaction process based on the non-destructive tests, enhances prediction of the optimum parameter conditions, and reduced the energy, and the compaction time consumed for the green sand moulding process.

Study on the heat transfer at the casting-mould interface in resin-bonded sand mould casting of Mg-Gd-Y-Zr alloy

2020 ◽  
Vol 33 (1) ◽  
pp. 1-10
Author(s):  
Xuyang Wang ◽  
Tianxiang Zhang ◽  
Ruijie Zhang ◽  
Xianfei Wang ◽  
Yong Yuan ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Sand Mould ◽  
Mould Casting ◽  
Zr Alloy

scholarly journals Range Of Thermal Conductivity Changes Of Wet Green Foundry Sand During Casting Solidification

2015 ◽  
Vol 60 (3) ◽  
pp. 2391-2395 ◽  
Author(s):  
P.K. Krajewski ◽  
G. Piwowarski
Keyword(s):  
Thermal Conductivity ◽  
Numerical Calculations ◽  
Cooling Curves ◽  
Green Sand ◽  
Mould Material ◽  
Sand Mould ◽  
Water Vaporization ◽  
Moulding Sand ◽  
Complex Temperature ◽  
Pure Cu

AbstractThe paper presents results of measuring thermal conductivity of green sand mould material and time of castings solidification evaluated from cooling curves. During the experiments pure Cu (99,8 %) plate was cast into the examined sand moulds. Basing on the measurements it was stated that thermal conductivity of the moulding sand has complex temperature variability, especially during the water vaporization. It was confirmed that water vaporization strongly influences thermal conductivity of the moulding sand in the first period of the mould heating by the poured casting. The obtained dependence should be used in the numerical calculations to improve their accuracy.

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