T/SXJP 048-2023 diameter 600mm ultra-high power graphite electrode

Scope

Main technical content: 4.1 The resistivity, bulk density, and ash content of electrodes and connectors shall comply with the requirements specified in Table 1. 4.2 The shape, dimensions, allowable deviations, surface quality, flexural strength, elastic modulus, and thermal expansion coefficient shall meet the corresponding requirements of YB/T 4090-2015. 4.2.1 Diameter and length of electrodes 4.2.2 Allowable deviations in electrode length 4.2.3 No more than 5% of short-length electrodes are allowed in each batch supplied. 4.2.4 The electrode connectors shall be conical in shape, with dimensions conforming to Figure 1 and Table 4. 4.2.5 The end-face clearance at the electrode connection shall not exceed 0.05 mm. 4.2.6 Surface quality 4.2.6.1 No more than two surface defects (such as chips or holes) are allowed on the electrode surface. The diameter of the defects shall be between 10 mm and 20 mm (those less than 10 mm are not counted), and the depth shall be between 5 mm and 10 mm (those less than 5 mm are not counted). 4.2.6.2 No holes or cracks are allowed on the connectors, connector holes, or the electrode surface within 100 mm from the bottom of the holes. 4.2.6.3 No more than one chip on the connector or connector hole threads is allowed, with a length not exceeding 30 mm. 4.2.6.4 No cracks are allowed on the electrode surface. 4.2.6.5 No black skin is allowed on the electrode surface. 4.2.7 The physical and chemical indicators of the flexural strength, elastic modulus, and thermal expansion coefficient of electrodes and connectors shall comply with the requirements specified in Table 5.

Development Information

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