sand Casting

Manufacturing official best way of making accurate reading of the model should be provided. Casting part of dimensional accuracy and is dependent on the model of the dimensional accuracy can be molded according to the healthy and technological rules.

economic modellers to find the molding method and has to work accordingly. Model designed to be simple and do in a short time.

Model hand or machine element to be molded to be qualified even though organized in a way that the dies accurately.

The mold must be arranged so that the molten metal into the mold and solidifies axle made easily without errors.

After casting and mold in the air gap should be designed so that no slag.

Mala Surface Selection

It called a trowel surface of the mold parting line. It provides the trowel surface model could come from the mold by opening the mold. Mala surface of the molding to provide accurate model of the surface or surfaces should be chosen accordingly. Also the number and the shape of the molding part in the choice of molding technique is also great significance trowel surface.

Mr. Molding

Few models are usually done in a manner that will be molded from molded wood and craftsmanship. to provide the most accurate and most economical molding style trowel surface model is made from selected and fragmented pattern trowel surface if necessary.

A plurality of models to be molded (mass production model) usually are molded from one or more model plate obtained by connecting or molding machine. These models are usually made from metal or polymer material, the plywood plates, are made of aluminum or cast iron.

Shape molding

Models of the technical facilities to do while foundry molding and molding technology must be taken into consideration.

The resulting molding: Model of metal or also on the degree that the molded sand modeler process. It is usually poured into a sand mold melted metal cupola or induction furnace.

molding machine

by standard grades of plates connected in series production model is the process of molding by normal molding machines. This operation is performed by high-pressure molding machine more quickly and without error.

molding process in foundries working with Dizamatik system is extremely fast and accurate.

Kum kalıba döküm yöntemi en çok kullanılan döküm yöntemlerinden biridir. Kalıp maliyetinin düşük oluşu ve çok farklı boyutlardaki parçalarda uygulanışı sebebiyle tercih edilmektedir. Kum kalıba döküm yöntemi, makine yardımıyla kalıplama ve elle kalıplama olarak ikiye ayrılır. Döküm sırasında yer çekiminden yararlanılır ve bu yöntem, döküm parçalarının tek veya küçük çaplı seri üretimi için uygundur. Kum kalıba döküm sayesinde birkaç gramdan 400 tona kadar olan parçaların dökümü mümkündür. Kalıp kumuna çeşitli makineler kullanılarak çeşit verilir ve yerçekimi kuvvetinin etkisiyle gerçekleştirilir.

Age Sand casting

sand mold casting is carried out with more green sand molds. Age sand; SiO2 particles, clay, plastic mixture consisting of water and other additives. 'Age' is the term given due to moisture contained denotes the difference of the dry sand mixture.

Age Sand Mold Advantages

Great flexibility is
repeatedly used can be refreshed with water and other additives,
Cheapest molding is formed.
Disadvantages of the green sand mold;

Mold higher strength and erosion resistance in case it needs to have
Higher dimensional accuracy and surface quality is not preferred when it is desirable.
A wet cake prepared with sand, is heated to 150C-350C with strength imparted dried in oven air temperature. After drying the mold is provided higher hardness and refractory properties. Drying lost time creates a major drawback. compared to green sand molds, humidity control is less critical. Also, wait a while before casting mold, sand mold as in age does not cause problems such as embrittlement and surface drying.

Kurutma işlemi sırasında sıcaklığın 400 C üzerine çıkılmadan yapılmasına özen gösterilmelidir. Aksi halde bağlanmış su kaybı killerin mukavemet özellikleri üzerinde yıkıcı bir etki gösterecektir.

But not when self drying air heat source, the temperature increased as important regional moisture concentration may occur. Alone at room temperature, the moisture exits the dried surface. However, the movement of moisture is in both directions higher temperatures. Therefore it must be taken without delay in casting mold partially installed in this way.

Sand casting, large pieces (usually iron, bronze, brass and aluminum) are used to produce. Molten metal is previously formed sand (natural or synthetic) is poured into the mold cavity. Sand space, which is usually about a copy of the piece of wood is sometimes made with molds.