ИЗДАТЕЛЬСКИЙ ДОМ «ЛИТЕЙНОЕ ПРОИЗВОДСТВО»
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Kuzmin P.B., Kuzmina M.Y. About production of primary siluminsingots medified with strontium
A raw of production regularities of primary casting alloys ingots AlSi7Mg; AlSi7MgSr; AlSi11Mg; AlSi11MgSrwere studied. The features of melting and casting of the alloys as well as influence of strontium and silicon on shrink defects formation were examined. It was reviled that strontium as modifier not only changes the silicon morphology but also the type of alloy solidification and shrinkage. The particular attention was given to defects on the ingots based on almost eutectic AlSi11MgSr alloy.
Key words: aluminum alloy, strontium, melting, ingots, grain refining, macro- and microstructure, alloying, impurity, mechanical properties, porosity, shrink defects.

Mukhina I.Y., Bobrishev B.L., Antipov V.V., Koshelev A.O., Bobrishev D.B. Structure and properties of alloys of the system Mg–Al–Zn in casting in the mold and casting in shapes of cold-hardening mixtures
New developments of processes of melting in a protective environment and study of properties of alloys of the system Mg–Al–Zn (ML5 and VML18) in casting of large-size castings in the mold and casting in shapes of cold-hardening mixtures are conducted to increase the purity and quality of casting magnesium alloys, and also to improve the ecological situation in the magnesium production shops.
Key words: magnesium alloys, alloying, mechanical properties, melt, microstructure.

Yevstigneyev A.I., Dmitriyev E.A. , Saigushkina V.A. Core Sand with a Sulfate Binder
The work presents results of investigating inorganic salt binder consisting of a MgSO4-Na2SO4 salt mixture. Effect of sodium sulfate content on the strength characteristics of core sand is evaluated. Also presented are data of thermal analysis of binary MgSO4-Na2SO4 salts with different sodium contents, the factor of sand hardening temperature and amount of sodium sulfate therein is taken into consideration, microstructural analysis of sand samples being investigated is given, and corresponding conclusions are made.
Key words: Binder, core sand, shrinkage processes, strength, heat resistance, structure.

Kidalov N.A., Osipova N.A., Potashova I.Y. Using Products of Vegetable Oil Filtration in Molding Sands
In the investigated compositions of molding sand - clay mixtures (ASG), in which as a technological additives injected filter-press residue (FPO), obtained during the cleaning of vegetable mustard and camelina oils. Adding 1.0-2.0% of the FPO in the ASG are improving technological properties of mixtures: increase the fluidity, survivability, reduced adhesion to modelling-technological equipment.
Key words: Molding mixture, processing aids, technological properties, survivability, adhesion, gas permeability.

Gilmanshina T.R., Uskov I.V., Belyaev S.V., Baranov V.N., Uskov D.I., Bogdanova T.A. Making Salt Cores in Precision Casting Production
The possibility of application of technology investment casting for complex precision products of radio engineering destination with high demands on surface. Improving the quality of the surface of aluminum castings produced by investment casting, can be achieved by introducing into the saltcore mixtures activated graphite. Coarseness Ra = 0,745…1,026.
Keywords: Rods, investment casting, aluminum alloy, activated graphite.

Kolesnikov M.S., Mukhametzyanova G.F. Application of ductile cast iron for making the press - unit parts hot chamber injection molding machine for zinc alloys
The prospect of application of ductile cast iron with globular graphite for making the press-unit parts of the hot chamber injection molding machine for zinc alloys, instead of traditionally used foreign and domestic gray iron is installed. The composition and heat treatment technology for ductile iron parts is proposed.
Keywords: The press-unit parts, the hot chamber injection molding machine, cone, compression rings, press pistons, compression chamber, abrasion, heat treatment.

Doroshenko V.S., Shinsky V.O. Vacuum mold in sand Lost Foam Casting Process
We have described the technological bases vacuuming sand molds, as well as the influence of gas pressure on the balance of stabilization strength is exemplified by Lost Foam Casting process. Also shown are pictures of EPS patterns and metal castings.
Keywords: Vacuum, casting, V-process, EPS patterns, Lost Foam Casting, Foundry.

Samarai V.P., Bogushevsky V.S., Samarai R.V. Control system for die-casting piston deceleration based on fuzzy logic
The rational for applying fuzzy logic to monitoring, modeling and adjustment of speed of movement and deceleration of a die cast piston has been offered. Those are the major factors of automation, quality of die casting, reduction of energy consumption, raising efficiency and effectiveness of die-cast machinery.
Keywords: Fuzzy logic, control system, injection molding.

Isagulov A.Z., Tverdokhlebov N.I., Kulikov V.Y., Sidyakin A.V., Matveyev A.S. Material for Gasifiable Patterns in Railroad Casting Production
The article presents an investigation into a material for gasifiable pattern casting of railroad car parts. The results of the investigation into the casting produced showed the possibility of using D833B polystyrene, which allowed to obtain a high precision and good surface finish of the casting.
Key words: Casting, gasifiable patterns, cast product, technology, process, railroad cars.

Yurkov I.I., Anikin M.V. Enhancement of Service Durability of Dies and Chill Molds for Casting Nonferrous Alloys
Increasing service life of dies and chill molds used for casting nonferrous alloys is topical for existing foundries. This subject is given much attention. At the same time,the process of using casting tooling is very complex and multifaceted, as it requires taking into account many factors, and therefore has no universal solutions. At the same time, the possibility of enhancing service durability of casting tooling should be pointed out. The article focuses on this subject.




Table of content

Kuzmin P.B., Kuzmina M.Y. About production of primary siluminsingots medified with strontium

Mukhina I.Y., Bobrishev B.L., Antipov V.V., Koshelev A.O., Bobrishev D.B. Structure and properties of alloys of the system Mg–Al–Zn in casting in the mold and casting in shapes of cold-hardening mixtures

Yevstigneyev A.I., Dmitriyev E.A. , Saigushkina V.A. Core Sand with a Sulfate Binder

Kidalov N.A., Osipova N.A., Potashova I.Y. Using Products of Vegetable Oil Filtration in Molding Sands

Gilmanshina T.R., Uskov I.V., Belyaev S.V., Baranov V.N., Uskov D.I., Bogdanova T.A. Making Salt Cores in Precision Casting Production

Kolesnikov M.S., Mukhametzyanova G.F. Application of ductile cast iron for making the press - unit parts hot chamber injection molding machine for zinc alloys

Doroshenko V.S., Shinsky V.O. Vacuum mold in sand Lost Foam Casting Process

Samarai V.P., Bogushevsky V.S., Samarai R.V. Control system for die-casting piston deceleration based on fuzzy logic

Isagulov A.Z., Tverdokhlebov N.I., Kulikov V.Y., Sidyakin A.V., Matveyev A.S. Material for Gasifiable Patterns in Railroad Casting Production

Yurkov I.I., Anikin M.V. Enhancement of Service Durability of Dies and Chill Molds for Casting Nonferrous Alloys


Русская версия

July 2014         September 2014

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