Shhag is the best freezer glass doors supplier and display glass door manufacturer.
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Shhag is the best freezer glass doors supplier and display glass door manufacturer.
What are the characteristics of the glass on the glass door of the refrigerator
Isotropic
The molecular arrangement of glass is irregular, and its molecules have computational uniformity in space. Ideally, the physical and chemical properties of homogeneous glass (such as refractive index, hardness, modulus of elasticity, coefficient of thermal expansion, thermal conductivity, electrical conductivity, etc.) are the same in all directions.
no fixed melting point
Since glass is a mixture of right and wrong crystalline states, it has no fixed boiling point.
The change of glass from solid to liquid is carried out in a certain temperature range (ie softening temperature range), which is different from crystalline materials and has no fixed melting point. The softening temperature range is TG-T1, TG is the modification temperature, T1 is the liquidus temperature, and the corresponding viscosities are 1013.4 DPA·s and 104~6 DPA·s respectively.
metastable
Generally, glassy materials are obtained by rapidly cooling the melt.
When the molten state changes to the glassy state, the viscosity increases sharply during cooling, and the particles cannot be arranged regularly to form crystals without releasing the latent heat of crystallization. Therefore, glassy materials have higher internal energy than crystalline materials, and their energy is between the molten state and the crystalline state, belonging to the metastable state. From a mechanical point of view, glass is an unstable high-energy state, for example, there is a tendency to change the low-energy state, that is, there is a tendency to crystallize, so glass is a metastable solid material.
stepwise reversible
The process of glassy substances from molten state to solid state is gradual, and the change of physical and chemical properties is continuous and gradual. This is obviously different from the crystallization process of the melt, and a new phase must appear during the crystallization process. Around the crystallization temperature, many properties change abruptly.
However, the change of glassy materials from the molten state to the solid state is accomplished over a wide temperature range. As the temperature is lowered, the viscosity of the glass melt gradually increases and a solid glass is formed, but no new phases are formed in the process. In contrast, the process of heating and melting glass is also gradual.
A glass door is a special kind of door leaf. First of all, it is not thick enough to say it is a solid door, and it is not classified as a special-shaped door. In fact, this is a special form of door leaf.
The properties of a glass door depend on the properties of the glass itself. For example, when tempered transparent glass is used, the door leaf has a transparent function, and when frosted glass is used, the door leaf has a translucent function. This is also the thing that arises from this.
