Results 21 to 30 of about 1,339 (303)

Analysis of Mechanical Properties and Permeability of Sand Moulding by Using Eggshell in Sand Casting

open access: yesJournal of Mechanical Engineering Science and Technology, 2018
This study aimed to analyse the usage of Eggshell as mixture material of bentonite in metal casting process which used dried sand moulding. Eggshell variations in this study were 4%, 7%, 10% eggshell, and additional 3% of bentonite on each sample.
Wahyu Kurnianto   +2 more
doaj   +1 more source

Humidity Migration in Surface Layers of Sand Moulds During Processes of Penetration and Drying of Protective Coatings [PDF]

open access: yesArchives of Foundry Engineering, 2022
The results of investigations of humidity migration in near surface layers of sand mould during processes of penetration and drying of protective coatings are presented in the hereby paper.
Ł. Jamrozowicz, J. Zych
doaj   +1 more source

Effect of Temperature on Chromite-Based Moulding Sands Bonded with Sodium Silicate

open access: yesArchives of Foundry Engineering, 2016
In the paper, a research on effects of baking temperature on chromite sand base of moulding sands bonded with sodium silicate is presented. Pure chromite sand and its chromite-based moulding sand prepared with use of sodium silicate were subjected to ...
Stachowicz M.   +3 more
doaj   +1 more source

Influence of the Hardener Type on the Hardening Process Kinetics of the Selected Self-setting Sands

open access: yesArchives of Foundry Engineering, 2017
Measurements of the hardening process of the selected self-setting sands are presented in the hereby paper. Moulding sands were prepared on the matrix of „Szczakowa” sand of the Sibelco Company.
Jamrozowicz Ł.   +3 more
doaj   +1 more source

Influence of the reclamation method of spent moulding sands on the possibility of creating favourable conditions for gases flow in a mould

open access: yesArchives of Metallurgy and Materials, 2017
The results of investigations concerning the influence of the applied sand matrix (fresh sand, reclaim) on the properties of moulding sands used for production of large dimensional castings (ingot moulds, ladles), are presented in the hereby paper.
Łucarz M., Drożyński D.
doaj   +1 more source

Casting Quality Enhancement Using New Binders on Sand Casting and High-Pressure Rheo-Die Casting

open access: yesУспехи физики металлов, 2019
Casting quality is a perfection factor for measuring the success of the metal casting. One of efforts to obtain high-quality casting product is identifying the quality of sand moulding used.
P. Puspitasari, J. W. Dika
doaj   +1 more source

The Impact of Microwave Penetration Depth on the Process of Heating the Moulding Sand with Sodium Silicate

open access: yesArchives of Foundry Engineering, 2017
This paper presents the impact of microwave penetration depth on the process of heating the moulding sand with sodium silicate. For each material it is affected by: the wavelength in vacuum and the real and imaginary components of the relative complex ...
Nowak D.
doaj   +1 more source

Utilizing Taguchi method and Regression Analysis for Optimizing Sand Mould Flowability [PDF]

open access: yesArchives of Foundry Engineering
Parameters of the moulding process in foundry are usually determined by trial-and-error method, and this way contributes to time taken and adds further cost for production sand.
Dheya Abdulamer   +2 more
doaj   +1 more source

The Analysis of Permeability and Mechanical Properties of Sand Moulding Using Mixed Material Clamshell (Placuna placenta) on Sand Casting

open access: yesJournal of Mechanical Engineering Science and Technology, 2018
This study objected to determine mechanical properties of sand moulding by conducting tensile test, compressive and shear test, and also permeability test.
Kritchakhris Nawettanaprasert   +2 more
doaj   +1 more source

Gases Emission From Surface Layers of Sand Moulds and Cores Stored Under the Humid Air Conditions

open access: yesArchives of Foundry Engineering, 2017
A large number of defects of castings made in sand moulds is caused by gases. There are several sources of gases: gases emitted from moulds, cores or protective coatings during pouring and casting solidification; water in moulding sands; moisture ...
Kaźnica N., Zych J., Mocek J.
doaj   +1 more source

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