Improving Functional Parameters for Pressure Casting Machine with High Degree of Finishing
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2009, Vol 32, Issue 1
Abstract
The paper presents a mathematic model of static and dynamic characteristics for casting machine. This machine has a hydraulic action for the casting chamber (her closing and introducing of molten alloy). This action is made by use an axial piston pump with the variable cylinder with pressure regulator. The mathematic model of how the injection pump functions (for molten alloy) can do by a computer simulation. This kind of approach for the study problem leads to the identification of key parameter and malfunction of these hydraulic parts. The malfunction simulation for the important work parameters (hydraulic force necessary to push the molten alloy in the shell, pressure compensated flow controls the strength to close the two rooms where the molten alloy is sent) show permanently the operator the place where a damage is produce and it is necessary his intervention.
Authors and Affiliations
Stefan DRAGOMIR, Marian NEACSU
Keywords
Related Articles
- EP ID EP657743
- DOI -
- Views 61
- Downloads 0
The Influence of the Temperature Regime on the Mechanical Properties of the Thick Steel Sheets from Carbon and Low-Alloy Steels, Laminated to Thicknesses Less than 40 mm
Steel remains the most used material in the machinery industry, the construction of oil and gas pipelines, etc. Hot rolling is no longer a simple means of obtaining the final geometry of products in the steel industry, b...
Use of Biodegradable Sorbents to the Decontamination of Polluted Soils
The paper presents the decontamination of soils polluted with diesel, oils and other petroleum products. Soil decontamination is applied in-situ and ex-situ, depending on the surface and depth of the polluted area. The t...
Investigation of Titanium Hydride Produced from Titanium Waste
The work presents an original method for titanium hydride production by hydrogenation and dehydrogenation of titanium waste in a specially designed for this purpose vacuum chamber. Laboratory quantities of titanium hydri...
Determination of Glass Transition Temperature for Polyester / Graphene Oxide and Polyester / Graphite Composite by TMA and DSC
The influences of oxide grapheme and grapheme in thermosetting polymer composites are complex and they very much depend on the chemical bonds formed between the additives and the polymer matrix. This study has used polye...
Experimental Researches Concerning the Influence of the Oxynitrocarburizing Thermochemical Treatment over the Structure and Corrosion Resistance of C40 Steel
The aim of the paper is to present the results of the experimental researches regarding the corrosion behaviour of C40 steel, thermochemical treated by oxidant nitrocarburizing at 570 °C. The thermochemical treatment was...