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

Copper is a metal with excellent conductivity, second only to silver, and better than graphite in electrical conductivity.

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:Is graphite rod resistant to sulfur corrosion?

It is widely used in petroleum, chemical, hydrometallurgy, acid and alkali production, synthetic fiber, paper making and other industrial sectors. It can save a great deal of metal materials.

Q:Copper, graphite rods, dilute sulfuric acid, why not make up the original battery?

Because there is no oxidant, and can not react with dilute sulfuric acid, and if the graphite rod in the vicinity of the continuous access to oxygen, you can form the original battery

Q:What is Teflon graphite stick for?

Should be called graphite modified (reinforced, filled) PTFE bar, rod profiles are used for processing fine size parts. The material is made from polytetrafluoroethylene and reinforced with graphite reinforcing agent (or carbon fiber).

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

CD: cadmium compounds can cause hot metal, there may be severe pulmonary edema, chronic poisoning include pulmonary edema, nephropathy and bone damage, prominent symptoms of muscle, bone and joint pain, can appear albuminuria, such as occurred in 1955~1972 to Sichuan Basin is due to cadmium poisoning caused by Itai Itai disease events in Toyama county the Japanese God.

Q:What about the thermal conductivity of graphite rods?

The thermal insulation of graphite is very reliable under ultra high temperature.

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

Is to use graphite material with high-speed machinery processing, gongs out of different shapes of products, such as mobile phone shell model, sound network, car accessories and so on. Because graphite has many excellent properties, it has been widely used in metallurgy, mechanical, electrical, chemical, textile, national defense and other industrial sectors. Refractory material.

Q:What is the difference between the conductive effects of different grades of graphite? Refers to the pencil core

B is "black" (black) English prefixes, on behalf of graphite, is used to represent the case of soft pencil and write the obvious level. To "6B" for the most soft, the most black handwriting, often used in painting, ordinary pencil mark is generally "Hb."". The pencil mark used to cover the answer sheet during the exam is usually "2B""

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

This statement must be imprecise. The solid electrolyte does not move freely, so it cannot conduct electricity. There is a free charge in the metal conductor, so it can conduct electricity