Ceramic Coating for Cast House Application

Aćimovic-Pavlović, Zagorka; Prstić, Aurel; Andrić, Ljubiša; Milošević, Vladan; Miličević, Sonja

doi:10.5772/31273

Cited by 6 publications

(13 citation statements)

References 5 publications

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“…Refractory coatings and their production processes were designed according to the works [3,8,22], our works [24,26] and domestic norms [43,44]. Based on the analysis of the mechanical activation influence on the filler grain size and shape [27,[28][29][30][31][32][33] as well as of the filler grain size influence on coating suspension sedimentation stability [3,7], cordierite-based, mechanically activated fillers were chosen: first filler C 2 (100% -20 x10 -6 m) and the second combination of fillers C 2 (100% -20x 10 -6 m) and C 3 (100% -12 x10 -6 m). In reference to the filler grain size chosen, two series of the Lost Foam refractory coatings were designed as follows: coating with filler C 2 (marked: A) and coating with combination of fillers C 2 + C 3 (marked: B), which were corrected according to test results for the coating suspensions obtained.…”

Section: Synthesis Of Lost Foam Refractory Coatings With Activated Fimentioning

confidence: 99%

“…As a consequence of degradation and evaporation of the polymer pattern, a large amount of liquid and gas products are released. These products are a frequent cause for castings' defects [1][2][3][4][5]. To obtain quality castings, it is necessary to apply highly permeable Lost Foam refractory coatings [1,[6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…refractoriness; low heat expansion coefficient; suiTab. gas permeability; resistance to liquid metal current with no penetration into the mold wall; inertia towards liquid metal; easy application and attachment to mold and pattern surfaces; easy adjustment of coating thickness; short drying time with no occurrence of coat cracks or erasure; formation of visible thin film of coat firmly bound to the surface of the polymer pattern [3,[18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

“…to form an even and uniform, a thinner film of the coat. It is of particular importance when the coat is applied for the Lost Foam casting process, because particles with different (grain and metric) composition are a better match; the filler particles get "stacked" among themselves to form thin, highly permeable layers of coat on the pattern concerned [3,8,16]. According to:…”

Section: Introductionmentioning

confidence: 99%

“…-the results of research referring to complex notions and processes carried out within the pattern, metal and mold at the liquid metal inflow stage and referring to polymer pattern degradation and castings solidification [1][2][3][4]; -examination of the influence of various process parameters on the structure and properties of castings [6], the idea was to check the possibility to apply mechanical activation of a cordierite-based filler in order to improve rheologic properties of the Lost Foam refractory coatings. To accomplish high sedimentation stability, the choice was made among various types and amounts of additives in order to enable adsorption of the additive on the mechanically-activated filler's particles and to keep the filler dispersed in suspension, preventing its precipitation.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Influence of mechanical activation of a cordierite -based filler on sedimentation stability of lost foam refractory coatings

Pavlović¹,

Andrić

Radulović

et al. 2019

Sci Sintering

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For the development of the Lost Foam refractory coatings with controlled rheologic properties, the influence of the mechanical activation process on the cordierite-based filler's properties change was examined. First of all, the test referred to the change of filler particles' size and shape, as well as to dispersion ability and stability of the coating suspension. Cordierite was obtained by synthesis in a solid state, out of the mass consisting of kaoline, alumina, quartz, sepiolite. For characterization purposes, the following methods were used: X-ray diffraction, differential thermal analysis, SEM and optical microscopy. Mechanical activation of filler was performed in a vibrating mill. The upper boundary of the grain size was 100%-30 x 10-6 m, the times were (min): 15; 30; 60. The new composition of Lost foam refractory coatings has been developed with a change of the coating production process, as well. These newly synthesized coatings proved to be effective in terms of a positive influence on a surface quality, structural and mechanical properties of aluminium castings. Test results may be useful to have the Lost Foam refractory coatings specified together with other process parameters used for the production of castings according to this casting method.

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Section: Synthesis Of Lost Foam Refractory Coatings With Activated Fimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of mechanical activation of a cordierite -based filler on sedimentation stability of lost foam refractory coatings

Pavlović¹,

Andrić

Radulović

et al. 2019

Sci Sintering

View full text Add to dashboard Cite

show abstract

Investigation of the effect of the non-stick coating quality on the structure and properties of the surface of cast iron castings

Gilmanshina

Khudonogov

Lytkina

et al. 2022

Int J Adv Manuf Technol

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Synthesis of the new lost foam refractory coatings based on talc

Pavlović

Nikolić

Andrić

et al. 2021

JSCS

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This paper is focused on the preparation procedures, using talc-based filler to improve the rheologic properties of the lost foam refractory coatings. Talc, with grain size of 40 mm, was mechanically activated in a vibration mill over the following times: 10, 20 and 30 min. Depending on the time required for the mechanical activation, the change in the filler grain size and shape was analysed along their effects on the talc-filled lost foam coating dispersion ability and stability. In order to characterize the filler, the following methods were used: X-ray diffraction, scanning electron microscopy and optic microscopy. The coating compo-sition was tuned by choosing the suitable grain size and shape factor of the activated filler. In addition, different coating components (additives, solvent) were applied to alter the coating generation procedure. It was shown that the application of this type of the lost foam refractory coatings - water-based coatings - have a positive influence on quality of the aluminium alloy castings, which contributes to reducing the cost of cleaning and processing of the castings. Also, alcohol-based refractory coatings with talc-based activated fillers were tested and used to have the castings produced in the sand moulds.

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Ceramic Coating for Cast House Application

Cited by 6 publications

References 5 publications

Influence of mechanical activation of a cordierite -based filler on sedimentation stability of lost foam refractory coatings

Influence of mechanical activation of a cordierite -based filler on sedimentation stability of lost foam refractory coatings

Investigation of the effect of the non-stick coating quality on the structure and properties of the surface of cast iron castings

Synthesis of the new lost foam refractory coatings based on talc

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