carbon paste electrode

Carbon paste electrode manufacturers introduce to you the national standard of carbon paste electrode

The People’s Republic of China Ferrous Metallurgy Industry Standard YB/T 5215-1996 Electrode paste instead of YB/T 5215-93

1 Subject content and scope of application This standard specifies the classification, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of electrode pastes. This standard applies to closed pastes, standard electrode pastes and chemical electrode pastes used for self-baking electrodes in closed, open and semi-closed submerged arc furnaces.

2 Reference Standard GB 1 427 Carbon Material Sampling Method GB 1 429 Carbon Material Ash Content Determination Method GB 1 4 31 Carbon Material Compressive Strength Determination Method GB 3 425 Carbon Paste Test Sample Roasting Method GB 6 15 4 Carbon Material Bulk Density Determination Method GB 6 717 Carbon material resistivity determination method GB 8 17 0 Numerical rounding rules GB 8 719 Carbon material and its products packaging, marking, transportation and quality certificate General provisions GB 8 72 0 Carbon paste volatile matter determination method ZB Q52 0 02 Test method for electrode paste elongation

3 Product classification 3.1 Electrode paste includes airtight paste, standard electrode paste, and chemical electrode paste. 3.2 According to the physical and chemical indexes of electrode paste, it is divided into: airtight paste No. 1 and No. 2; standard electrode paste No. 1, No. 2, and No. 3; chemical electrode paste.

Approved by the Ministry of Metallurgical Industry on May 17, 1996 and implemented on October 01, 1996

4.2 Electrode Paste is cast into trapezoidal blocks with an ingot machine, and each block weighs no more than 15kg. At the time of supply, the allowable amount of scraps with a diameter of less than 50mm shall not exceed 3%. 4.3 The buyer has special technical requirements, which shall be agreed between the supplier and the buyer.

5 Test method 5.1 The determination of ash content shall be carried out in accordance with the provisions of GB 1429. 5.2 The determination of volatile matter shall be carried out in accordance with the provisions of GB 8720. 5.3 The determination of compressive strength shall be carried out in accordance with the provisions of GB 1431. 5.4 The measurement of resistivity shall be carried out in accordance with the provisions of GB 6717. The sample size is: diameter 45±0.1mm, length 40±0.1mm, 5.5 The measurement of bulk density is carried out according to GB 6154. 5.6 The measurement of elongation is carried out in accordance with the provisions of ZB Q52 002. 5.7 The roasting of the carbon paste test sample shall be carried out in accordance with the provisions of GB 3425.

6 Inspection rules 6.1 The quality inspection and acceptance of electrode paste shall be carried out by the quality supervision department. 6.2 The sampling method shall be carried out in accordance with the provisions of GB 1427. 6.3 The rounding of values shall be carried out in accordance with the provisions of GB 8170.

7 Marking, packaging, transportation and storage The marking, packaging, transportation and storage of the product shall be carried out in accordance with the provisions of GB 8719.