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Graphite heat exchanger is a heat transfer device made of graphite. The graphite in the manufacture of heat exchanger should be non transparent, and is often used in the non - permeable graphite and graphite. Structure The graphite heat exchanger can be divided into 3 types: block type, tube shell and plate type according to its structure. A piece of hole: a plurality of bulk graphite assemblies that are formed by a plurality of holes. Shell and tube type: tube shell type heat exchanger in graphite for heat exchanger occupies an important position, according to the structure is divided into two kinds of fixed and floating head. Plate: made of graphite bonding plate heat exchanger. In addition, there are immersion,…
Although the definition of isotropic graphite in the world needs to be further defined, it is generally to measure some physical properties of the product's diameter and length. The ratio of the thermal expansion coefficient is expressed as the ratio of the resistivity. The large scale graphite diameter of the advanced countries and other industrial technology has reached 1.5 m, the length is 3%, the bulk density is g/cm 1.95-2.0, the anisotropy ratio is reduced to 1.05. In addition to the use of ordinary petroleum coke, the use of modified asphalt, tar, coke, oxidized petroleum coke, petroleum coke, natural graphite, etc.. And other static pressure graphite by high pure graphite pressed. Static pressure graphite is a new product developed in…
The graphite material and parts are already widely used in all kinds of industries for almost 50years,as the many good properties,such as :electricity conducting,corrosion resistance and good thermal conductivity,it is widely used for electrode,electro-chemical power,carbon brush on the motor and the gasket etc. However,the mechanical properties of graphite material is weak,easy to break and crash,limit the range of use. The graphite material impregnated with phenolic resin can improve the mechanical properties. The phenolic resin has several good properties such as high thermal stability, structural integrity etc,and making it as one of the binders of graphite is a good way to reduce the opening rate and improve the mechanical properties. Now the graphite impregnated phenolic resin is one of the most…
