Q:Distinguish iron powder and graphite powder by chemical method

1., add dilute hydrochloric acid or dilute sulfuric acid, the bubble is iron powder2. heating, iron powder is black, graphite is ignited in the air3. is mixed with copper oxide, and heating, plus graphite can be generated to clarify the muddy lime water turbidity CO2, iron powder No.

Q:What is the ratio of the coated sand to the graphite powder?

In addition to improve the refractoriness with graphite, can also add red. It also plays a role in increasing refractoriness and reducing gas output.

Q:How does graphite powder look good or bad?

The graphite powder is soft, black and gray, greasy and polluting paper. Hardness is 1~2, along the vertical direction with the increase of impurities, its hardness can be increased to 3~5. The specific gravity is 1.9 ~ 2.3. Under isolated oxygen conditions, the melting point is above 3000 degrees Celsius and is one of the most refractory minerals. At room temperature, the chemical properties of stone toner are relatively stable, insoluble in water, dilute acid, dilute alkali and organic solvents. The material has high temperature resistance and conductivity, and can be used as refractory materials, conductive materials, wear-resistant and lubricating materials.

Q:Main ingredients of graphite powder?

There are water, asphalt, CO2, H2, CH4, N2 and other gas parts. Therefore, the determination of graphite, in addition to the determination of fixed carbon content, but also the simultaneous determination of volatile and ash content.

Q:Are sand and particle powders used for casting quartz sand? Detailed and accurate.

Casting molding mainly used for special silica sand, zircon sand, magnesia and chromite, pearl sand, graphite sand. Casting powder mainly used in coatings, such as: quartz powder, bauxite powder, zircon powder, graphite powder, etc.

Q:Can ultrafine powder iron conduct heat? How many purpose graphite powder can be called superfine stone powder? Pingdu graphite powder which good?

In general, the average particle size of graphite powder is less than 10 m, you can call ultrafine powder toner, in fact, more than the use of ultrafine particles of toner, you can see Qingdao Huatai graphite, I hope to help you.

Q:The difference between silicone and silicone?

Silicone grease and silica gel although only two words in the literal sense, and all the thermal materials, but two things is completely different. Relatively speaking, the scope of the grease has a slightly wider, need to fit almost any cooling conditions; and because the silica gel once it is stuck on difficult to remove, so most of the time is used in some occasions only need one-time adhesion, heat sink such as graphics memory and memory of the particle particle. The main use of silica gel is bonding agent. We need to buy is the main heat conduction effect of silicone grease, you can not buy the wrong.

Q:For thermal grease skills, the more detailed the better

If the fins and the metal cover of the CPU are as smooth as mirrors, they will be 100 percent fully exposed to the best thermal conductivity.

Q:How can graphite paper be made? Can graphite powder be solidified without brittleness?

Single layer graphite paper is all graphite products, excluding other materials

Q:How much is one graphite used as electrode?

Product Name: graphite electrode, graphite crucible, graphite plate, graphite tile, graphite powderProduct price: 7000 yuan / tonCompany location: Hebei, Handan