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For example, the inoculation technology often used in cast iron production is closely related to the concentration fluctuation in molten iron(best blasting grit wholesale suppliers kenya). An alloy consists of two or more atoms(fine grit aluminum oxide). These phenomena indicate that the distance between most atoms in the molten metal near the melting temperature does not change indefinitely, and there is still a certain interaction force between atoms. 

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There is a peak on the left(garnet sand). G (R) is zero at 0q.2mm, indicating that there are no atoms in the range of R = 0.2nm (r = 0-0.2nm). When the R value exceeds q.35 ~ 0.4nm, the peak decreases sharply and the variation range tends to decrease(best blasting grit wholesale suppliers kenya). It shows that at the peak, the probability of other atoms is the highest(240 grit aluminum oxide). With the further increase of the distance from a specific atom, the probability of other atoms decreases gradually.

This test can show that there are atomic groups in liquid metals(alumina grit). The structural fluctuation reflects the energy fluctuation of atomic groups. Liquid metals consist of many atomic groups. Therefore, energy fluctuation and concentration fluctuation always occur everywhere(best blasting grit wholesale suppliers kenya). Especially when the interatomic force of two elements is greater than that of a single atom, the structure becomes more complex. 

Strictly speaking, liquid metals (including fully superheated liquid metals) are not really homogeneous phases(black silicon carbide). Except that the liquid phase contains a large number of impurity particles, the composition and structure of each micro region are not exactly the same, and are constantly changing(best blasting grit wholesale suppliers kenya). Therefore, holes and atomic groups are constantly changing, forming the structural fluctuation of liquid metal. 

In this way, when the molten liquid electrolyte is immersed in the anode at a certain height, the voltage will gradually stabilize, and then maintain the high voltage for a period of time(aluminum oxide blasting grit). When the liquid electrolyte reaches an appropriate height, it can cause the anode effect and accelerate the melting of the electrolyte(best blasting grit wholesale suppliers kenya). The variability and non-uniformity of this energy distribution in liquid metals is energy fluctuation. 

The alloy melt composed of several atoms also has structural fluctuation, which leads to the continuous change of concentration and distribution of different atoms in the liquid phase micro region(aluminium oxide shot blasting grit), forming concentration fluctuation(best blasting grit wholesale suppliers kenya). The figure shows the atomic density function g (R) at different distances (R) from a specific atomic center in non product iron (solid line) and liquid iron (dotted line) prepared by super chilling method.

Concentration fluctuation not only refers to the atomic distribution state(green silicon carbide). When the liquid metal contains unmelted solid particles, element segregation may occur on the particle surface and adjacent micro areas, resulting in double fluctuation of atomic concentration and particle concentration(best blasting grit wholesale suppliers kenya). Liquid metals also show submicroscopic temperature fluctuations, energy fluctuations and structural fluctuations.

The so-called fluctuation means that the temperature, energy and structure change with time and space(aluminium oxide blast media). The phase change of metal or alloy causes the change of some physical properties(best blasting grit wholesale suppliers kenya). The measurement of physical properties of some pure metals shows that the volume change of most metals before and after melting is generally no more than 5%, and the change range of electrical and thermal conductivity is also limited.

When the metal is heated and melted, the binding energy between atoms arranged regularly in the lattice is weakened, and the average atomic distance is increased(150 grit aluminum oxide), It turns out that there are only a dozen to hundreds of atoms around the atom, and there is a certain binding energy between atoms in a small range, which is arranged regularly(best blasting grit wholesale suppliers kenya). The heat input from the outside increases the energy of atomic thermal motion.

The kinetic energy of some atoms in the atomic group exceeds the binding energy between atoms(best blasting grit wholesale suppliers kenya). If they get rid of the constraints in the group and jump to other atomic groups or form new atomic groups, the distribution state of atomic groups and the existence state of energy in liquid metal are changing all the time(pink aluminum oxide). The average size and jump velocity of atomic clusters are related to the heating temperature of liquid metal.

These free electrons are shared by all atoms connected by metal bonds in the atomic group(aluminum oxide blasting abrasive). They can only flow with positive ions during atomic jump, and have the characteristics of ionic conductivity(best blasting grit wholesale suppliers kenya). Therefore, many liquid metals still have certain electrical conductivity(aluminium oxide blasting grit). One of the characteristics of liquid metal structure is the short-range ordered arrangement of atoms. There are energy fluctuations in liquid metals.

Different interatomic forces are different from single interatomic forces, which affect the atomic distribution in liquid alloys, making the structure of liquid alloys much more complex than that of liquid metals(glass bead blasting media suppliers). The diffraction intensity diagram of liquid alloy also changes with the change of alloy composition and temperature, and it is relatively difficult to analyze the change of structure(best blasting grit wholesale suppliers kenya).

There are three kinds of binding forces between different atoms in liquid alloys, that is, the binding force between atoms of the first element (or solvent element); Binding force between atoms of the second element (or solute element); The binding force between the atoms of the first element and the second element(black corundum). When the atomic group jumps, the probability of proportional jump of two atoms is relatively low(best blasting grit wholesale suppliers kenya).

The concentration fluctuation has a certain effect on the solidification process and solidification structure of the alloy(220 grit aluminum oxide blast media). The iron carbon balance diagram shows that when the temperature of liquid cast iron decreases to the liquid-solid transition point temperature, there will be a second phase precipitated from liquid iron(best blasting grit wholesale suppliers kenya). The precipitate may be graphite or cementite, or solid solution phase and mechanical mixture(alumina blasting).

In liquid metal, there are "vacancies" with low atomic density among atomic groups(best blasting grit wholesale suppliers kenya). These vacancies vary with the distribution of atomic groups. It may be formed only by the polymerization of carbon atoms or the combination of iron and carbon atoms, or it may be microcrystalline of other substances(steel grid). The higher the temperature, the smaller the average size, the higher the jump speed and the faster the energy change.