Lost Foam Casting with the Use of Recycling and Nanostructured Materials

2017 ◽  
Vol 265 ◽  
pp. 1016-1019
Author(s):  
L.G. Znamenskii ◽  
O.V. Ivochkina ◽  
A.S. Varlamov
Keyword(s):  
Cast Iron ◽  
Nanostructured Materials ◽  
Lost Foam Casting ◽  
Residual Moisture Content ◽  
Residual Moisture ◽  
Defect Reduction ◽  
The Core ◽  
Technological Characteristics ◽  
Molding Materials ◽  
Lost Foam

A relevant technology issue in lost foam casting is preventing the metal penetration appearance on steel and cast-iron mouldings. As a result of the research the appropriate parting model paint compositions with the use of recycling and nanostructured materials were developed. The basic technological characteristics of the developed parting model paint compositions are: relative stickiness due to VZ-6 18...25 s; residual moisture content 1...1.5 %, permeability to gases 40...50 ea. The parting paint effectiveness is determined by defect reduction of the castings on the core blow, uncertainty in geometry, metal penetration, and also the use of available and environmentally friendly molding materials in their composition, that makes the product to be highly competitive.

Experimental study on the filling process of the lost foam casting process of a cast iron plate

2013 ◽  
Vol 47 (1/2/3/4) ◽  
pp. 188 ◽  
Author(s):  
Jinwu Kang ◽  
Xiaokun Hao ◽  
Gang Nie ◽  
Haimin Long ◽  
Tianjiao Wang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Cast Iron ◽  
Casting Process ◽  
Lost Foam Casting ◽  
Filling Process ◽  
Iron Plate ◽  
Lost Foam

scholarly journals Production of impermeability castings from synthetic gray and ductile cast iron by lost-foam casting

2020 ◽  
Vol 28 (3) ◽  
pp. 75-82
Author(s):  
M.Ya. Tereshchenko ◽  
◽  
P.B. Kaliuzhnyi ◽  
S.O. Krotiuk ◽  
◽  
...  
Keyword(s):  
Cast Iron ◽  
Ductile Cast Iron ◽  
Lost Foam Casting ◽  
Lost Foam

scholarly journals Effect of vibration frequency on primary phase and properties of grey cast iron fabricated by lost foam casting

China Foundry ◽  
2020 ◽  
Vol 17 (1) ◽  
pp. 1-7
Author(s):  
Bo-tao Xiao ◽  
Zi-tian Fan ◽  
Wen-ming Jiang ◽  
Jun-huai Xiang ◽  
Xue-fang Yan
Keyword(s):  
Cast Iron ◽  
Vibration Frequency ◽  
Primary Phase ◽  
Grey Cast Iron ◽  
Lost Foam Casting ◽  
Grey Cast ◽  
Lost Foam

scholarly journals The Impact of Process Factors on Creating Defects, Mainly Lustrous Carbon, during the Production of Ductile Iron Using the Lost-Foam Casting (LFC) Method

Metals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1022
Author(s):  
Jan Jezierski ◽  
Michał Jureczko ◽  
Rafał Dojka
Keyword(s):  
Cast Iron ◽  
Ductile Iron ◽  
Surface Defects ◽  
Ductile Cast Iron ◽  
High Tech ◽  
Lost Foam Casting ◽  
Iron Castings ◽  
Process Factors ◽  
The Impact ◽  
Lost Foam

The purpose of this paper was to analyze the process factors affecting the occurrence of lustrous carbon defects in ductile cast iron castings when using the lost-foam casting (LFC) method. This phenomenon results in creating raw surface defects, which sometimes may even lead to cast iron scrapping. A series of trial melting batches were carried out for variable process assumptions. The analysis was performed to reflect, to the greatest extent possible, real foundry production conditions. Industrial tests were performed in Odlewnia Rafamet Sp. z o.o., Kuźnia Raciborska, Poland. The polystyrene patterns created by gluing components together, used in the tests, met the requirements of the high-tech lost-foam casting (LFC) process. The performed analysis allowed the obtaining of lustrous carbon defects in test castings as well as the determination of the process parameters with the highest impact on lustrous carbon inclusions in ductile iron castings. The test results were used to eliminate the possibility of creating a defect and thus directly improve the efficiency of the lost-foam casting (LFC) process used in the foundry.

scholarly journals Effect of Mechanical Vibration on Microstructure and Mechanical Properties of Gray Cast Iron in Lost Foam Casting

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Kai Qiu ◽  
Bota Xiao
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Mechanical Vibration ◽  
Gray Cast ◽  
Lost Foam Casting ◽  
Flake Graphite ◽  
Microstructure And Properties ◽  
Lost Foam

In order to reveal the effect of vibration solidification on microstructure and properties of gray cast iron in lost foam casting, Y-shaped HT100 gray cast iron was prepared by vibration lost foam casting, and the effect of amplitude on the microstructure and properties of gray cast iron was studied. The results showed that, with the increase in amplitude, the short and thin A-type flake graphite increases, and the austenite structure transforms from columnar to cellular. The hardness, tensile strength, and elongation of gray cast iron first increase and then decrease with the increase in amplitude. The appropriate amplitude in the process of Y-shaped HT100 gray cast iron by lost foam casting is 2 mm, while the tensile strength and elongation of gray cast iron are the highest, with the values of 147.51 MPa and 1.17%, respectively. The change of mechanical properties of gray cast iron is mainly determined by the morphology and distribution of austenite in gray cast iron and A-type flake graphite.

scholarly journals The Influence of the Shape of the Reaction Chamber on Spheroidisation of Cast Iron Produced in the Lost Foam Casting Process with Use of the Inmold Method

2012 ◽  
Vol 12 (2) ◽  
pp. 175-178
Author(s):  
P. Just ◽  
T. Pacyniak
Keyword(s):  
Cast Iron ◽  
Casting Process ◽  
Reaction Chamber ◽  
Lost Foam Casting ◽  
Reaction Chambers ◽  
Nodular Graphite ◽  
Lost Foam

The Influence of the Shape of the Reaction Chamber on Spheroidisation of Cast Iron Produced in the Lost Foam Casting Process with Use of the Inmold Method The article presents the results of the research on the influence of the shape of reaction chamber on spheroidisation of cast iron produced with use of the inmold method. The amounts of nodular graphite precipitates in castings produced with the use of different reaction chambers have been compared.

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