GB/T 30071-2013High-density and fine-particle special graphite product (English PDF)

1 Scope

This standard specifies the technical requirements for classification and fine particles of high-density graphite specialty products, test methods, inspection rules, packaging, labeling, storage

Storage, transport and quality certificates.

This standard applies to the largest particles are calcined petroleum coke as the main raw material, molding, baking, impregnation, graphitization and machining made of

Of not more than 0.8mm fine particles of high-density graphite products. The graphite products can be widely used in metallurgy, chemical, foundry, deep processing of graphite

And other fields.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 1427 carbon material sampling method

GB/T 1429 Determination of carbon content in ash material

GB/T 1431 Determination of compressive strength carbon material

GB/T 3074.1 Determination of flexural strength of graphite electrodes

GB/T 3074.3 Determination of oxidizing graphite electrodes

GB/T 3074.4 Determination of graphite electrodes graphite electrodes coefficient of thermal expansion (CTE) measurement method

GB/T 6155 Carbon true density of the material and the method for determination of true porosity

GB/T 8170 repair value expressed about the rules and limit values and judgment

GB/T 8719 carbonaceous material and products packaging, marking, storage, transport and quality certificates of general provisions

Determination of GB/T 8722 temperature thermal conductivity of graphite materials

GB/T 24525 Carbon materials resistivity measuring method

GB/T 24528 Carbon materials - Determination of bulk density

Category 3

Fine particles of high density specialty graphite products according to their field of use of the product requirements of different physical and chemical indicators will be divided into three categories. The first category is the smelting

Furnace insulation, insulation, support with fine particles of high density specialty graphite products; second category is the high density of fine particles for chemical specialty graphite products; the third category

For the casting of special high-density fine particles of graphite products.

4. Technical Requirements