Safety assessment of sand casting explosion accidents by testing cavity pressure of the sand mold to protect employee health [PDF]
HeliyonExcessive cavity pressure may result in a sand casting explosion, and corresponding measures should be adopted to prevent these consequences. In this study, the pressure variations in the cavity were first investigated based upon on-site testing by ...
Qingwei Xu +5 more
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Sand casting safety assessment for foundry enterprises: fault tree analysis, Heinrich accident triangle, HAZOP–LOPA, bow tie model [PDF]
Royal Society Open Science, 2018 Sand casting operations, though commonplace, pose a significant threat of explosion accidents. This paper presents a novel sand casting safety assessment technique based on fault tree analysis, Heinrich accident triangle, hazard and operability–layer of ...
Qingwei Xu +4 more
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Assessment of South African Chromite Sand for Binder Jetting Application [PDF]
MATEC Web of Conferences, 2022 Binder Jetting is an Additive manufacturing (AM) technique in which binding liquid is jetted on layers of powdered materials, selectively according to the Computer Aided Design (CAD) model to form a 3D part.
Chauke Julieth Langutani +2 more
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Effects of used sand recycling on the foundry properties of three-dimensional printed sand moulds and cores [PDF]
MATEC Web of Conferences, 2023 Sand casting is one of the important metal casting processes that involves hard labour and patternmaking to produce sand moulds. However, it has evolved considerably since the adoption of rapid sand casting, a type of additive manufacturing.
Matjila Makwena Annikie, Nyembwe Kasongo
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Technical and financial feasibility assessment of producing an impeller sand mould by three-dimensional printing using a Voxeljet VX 1000 machine [PDF]
MATEC Web of Conferences, 2023 Impeller castings are some of the most critical components used in engineering applications with complex designs. The high-quality production of their sand mould is essential to ensure optimal casting properties.
Msani Anazo, Nyembwe Kasongo Didier
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Non-standard tests for process control in chemically bonded sands [PDF]
China Foundry, 2016 Chemically bonded sand cores and molds are more commonly referred to as precision sand systems in the high production automotive powertrain sector. Their behavior in contact with molten metal can lead to casting defects.
S. Ramrattan
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Effect of Sc on microstructure and properties of A357 alloy under different casting conditions
Journal of Materials Research and Technology, 2022 The effect of Sc on microstructure and mechanical properties of A357 alloy was investigated using sand molds and metal molds. The results showed that the eutectic Si in A357-0.5Sc alloy showed finer fibrous structure and smaller secondary dendrite ...
Qi Wei +6 more
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Microstructure analysis of freeze-cast A356 aluminum alloy
工程科学学报, 2022 In combination with the digital and green development needs of the foundry industry, this article proposes a digital patternless freezing casting method. In this method, mixed water green sand particles are frozen and transformed to a certain strength in
Hao-qin YANG +3 more
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Cooling control for castings by adopting skeletal sand mold design [PDF]
China Foundry, 2021 The cooling control of the melt during the casting process is of great significance. A comprehensive closed-loop cooling control of castings by adopting a skeletal sand mold design was proposed.
Jin-wu Kang +2 more
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Effect of sand-mold material and extrusion forming process on sand-mold surface properties
工程科学学报, 2021 Considering the digital flexible extrusion sand mold as the research object, the surface quality of sand mold was studied by designing a single-factor experiment, and then the optimal parameter for the high-precision flexible forming of sand mold was ...
Li-jun GUO +3 more
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