Q:Are the black powders in the waste batteries poisonous? And zinc, graphite and so on

Mercury mercury can make human body loose teeth, hair, fingers shaking, insanity, 1953~1956 year in Minamata city of Japan's Minamata disease event is the best proof.

Q:25%, the fracture of graphite rod, pressing problem or sintering problem?

Agree to the above point of view, add a little pressure speed is not fast, in 25mm/min, the bad words too fast exhaust will cause cracking, transverse fracture from your description of the phenomenon, most are not caused by the row of clean air.

Q:What about the thermal conductivity of graphite rods?

The thermal conductivity and conductivity of the graphite rod are quite high. The conductivity of the graphite rod is 4 times higher than that of stainless steel, 2 times higher than that of carbon steel, and 100 times higher than that of ordinary nonmetal.

Q:Not that the solid does not conduct electricity, like the solid potassium chloride, but why the graphite rods, wires, these solids can conduct electricity

Because the graphite conductive graphite to each carbon atom and other carbon atoms form 3 covalent bonds, each carbon atom retains 1 free electrons to transfer charge. A metal dielectric wire, a free electron metal dielectric micro, conductive!

Q:How good is the conductivity of graphite and the conductivity of copper?

In theory, copper, depending on the resistivity of the materialThe lower the resistivity, the better the conductivityThe following is the resistivity of some objects.

Q:How many times will a high pure graphite stick turn red at temperature?

When the temperature reaches 400 degrees, the graphite turns red and then begins to oxidize, but the oxidation rate is slow.

Q:What is the difference between a graphite wand, a drawing pencil and an ordinary Chinese painting pencil?

Charcoal is the source of raw wood burning container was put into the seal, because the air can not enter the container, not wood burning down. Crunchy texture, porous charcoal, charcoal painting with hardness, very soft, soft, not soft not hard points.General charcoal are used to draft use, easy to modify, draw up very fast, so is generally not as deep drawing tools. The difference in the diameter of the charcoal strips is determined by the size and size of the paintings.

Q:What are graphite products mainly including?Specific points can understand

Is a variety of artificial graphite and natural graphite products made by processing, for example, the battery core is, then graphite rods, graphite block, graphite paper and so on, are considered, there is the industrial use of what is the use of graphite rotor, cast aluminum, graphite bearing, etc., made according to the characteristics of graphite products collectively.

Q:Why is there no graphite rod in battery five now?!

Because of the size of battery 5, but not with graphite rods, what specific use, and then wait for an expert

Q:What is Teflon graphite stick for?

Graphite can improve the wear resistance, thermal conductivity, self lubrication, electrical conductivity, heat resistance and deformation of polytetrafluoroethylene. With the application of high temperature resistance, wear resistance, corrosion resistance and other environments, in addition to food, insulation, oxidant environment, graphite modified (enhanced filled PTFE) can PTFE can be used instead of the original environment.