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Cheap White Aluminium Oxide Manufacturers Philippines

The eutectic structure can be divided into three types: supercooling degree of liquid phase, abnormal eutectic and divorced eutectic(carborundum powder). The normal eutectic occurs in the symmetrical symbiotic region. The basic condition for the formation of normal eutectic is that the constituent phases of CO growth have rough solidification interface(silicon carbide grinding). The difficulty of nucleation may cause the growth of divorced eutectic.

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The morphology of eutectic structure is related to the nucleation property of constituent phase, sliding temperature gradient before solidification(green silicon carbide powder), crystal growth rate, liquid phase composition and impurity element content. In normal coproducts, the phases are overlapped regularly and are generally layered(brown aluminum oxide 120 grit blast media). The eutectic formed by flake graphite and austenite in gray cast iron belongs to abnormal eutectic.(cheap white aluminium oxide manufacturers philippines)

The supercooling degree of each phase is basically the same(carborundum grit suppliers). Therefore, the solidification interface is basically isothermal. The interlayer spacing a (EM) is controlled by the interface growth rate R (EM / s). The relationship between layer spacing and growth rate of many normal eutectic is in accordance with a = Kr(aluminum oxide polish). For example, the eutectic structure of layered cementite formed at a certain growth rate basically conforms to A-R relationship.

(cheap white aluminium oxide manufacturers philippines)There are irregular lamellar, rod-shaped or other irregular precipitates in the eutectic structure(pink corundum). The most significant feature of the divorced eutectic is that the crystallization of each phase is separated in space and time, and the crystal grows completely outside the symbiotic zone(white corundum sand). Therefore, the concept of synergetic growth can not be used to explain the process of divorced eutectic transformation.

The divorced eutectic transformation occurs in the following cases(white fused alumina): the composition of eutectic phases is very different, and the nucleation conditions and crystal growth mode are different, one of the phases has been precipitated before the other phases start to grow(aluminium oxide abrasive grit). However, during the solidification of the shell, normal eutectic, the leading phase can also grow through the second phase in a special state.(cheap white aluminium oxide manufacturers philippines)

These factors widely exist in the solidification process of cast iron, which is the main reason for the diversity of eutectic structure of cast iron(white aluminum oxide). The growth of this component changes the composition of the melt and prevents it from entering the asymmetric eutectic region(white aluminum oxide grit). The leading phase may be surrounded by the second phase formed subsequently, forming a capsule shell. The abnormal eutectic is not lamellar.

When the leading phase grows to a certain extent, the diffusion velocity of solute in the liquid phase is very low(brown fused alumina price), so that the concentration of each phase can not reach the equilibrium state. Generally, high melting point components nucleate first. The practice shows that the larger the composition deviation, the more likely the segregation growth(white aluminium oxide powder), and the greater the undercooling of Eutectic Transformation(a component).

(cheap white aluminium oxide manufacturers philippines)The Eutectic Transformation of ductile iron belongs to the category of divorced eutectic transformation(black corundum). If the cooling rate increases or other reasons increase the undercooling of Eutectic Transformation, the change of eutectic phase compared with primary phase will be more significant(alumina polishing powder). Only after the nucleation and growth of the low melting point component can the composition of the melt tend to eutectic zone.

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