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Quartz crucible, with high purity and strong heat resistance, large size, high precision, good heat preservation, energy saving, stable quality and other advantages, is applied more and more widely. Detection of the quartz crucible is a very important link, and the detection of the quartz crucible toward the direction of the development of field detection 1 Quartz crucible can be used in the 1450 degrees below, divided into two kinds of transparent and opaque. With arc discharge method, translucent quartz crucible is pulling large diameter single crystal silicon, the development of large scale integrated circuit essential base material. Today, the world semiconductor industry in developed countries has used this crucible instead of small transparent quartz crucible. He has high purity…
Resin graphite tube heat exchanger is now more and more used in chemical and steel industries,It’s unique properties make it unique and irreplaceable. The failure forms of the heat exchanger has two kinds: graphite tube breaking, graphite tube blasting. Graphite is a brittle material, when the flange is be connected, it can not be unrestricted use of torque, so the corresponding different graphite materials to use the correct torque, so that the device can be guaranteed. Often a lot of times when the torque is not correct will cause the leakage of equipment and the destruction of graphite materials. The key components of graphite heat exchanger are composed of corrosion resistant graphite. After asphalt mixing, extrusion (or vibration forming), the…
Because of its characteristics of light weight, high resistance to high current and low electrode wear, it is very suitable for the manufacture of precision molds in the automotive industry, and the electrode graphite is one of the development trends of the discharge machining technology. Graphite electrode has the advantages of easy processing, high metal removal rate, small graphite loss, therefore, more and more die plant to abandon the copper electrode and switch to graphite electrode. Also some of the shapes of the electrode made of copper, but graphite is easy molding and copper electrode is heavy, not suitable for processing large electrodes, these factors have accelerated the graphite electrode in the mold manufacturing industry is more and more extensive…
