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GMPM. 1 GMHLM. 2 Molybdenum electrode rods bars1. The appearance are classified into sub-forging molybdenum rod and polished molybdenum rod. Sub-forging molybdenum rod's surface allows mild oxidative see and forging marks; polished molybdenum rod's surface is of metallic lusterand no significant oxidation. 2. According to the different chemical composition and use, grades are classified into 3 grades: GMPM.-1G MHLM.-2, GMHYM-3 . 3. Use GMPM. 1 is for the manufacture of electric vacuum parts, rod, electrode, export lines, heating and other electronic components. GMHI. M, 2, GMHYM. 3 is for the manufacture of tubes, electric light Lead strut, side rods, core lines. 4. Specification and tolerance forging molybdenum rod polished molybdenum rod mm 0 5 ≤ d (0 8 ± 0 02 0 8 ≤ d (2 5 ± 0 03 2 5 ≤ d (5 0 ± 2% ± 01 5 0 ≤ d <8 0 ± 01 5 8 0 ≤ d (1 6 0 ± 0 2 5. The chemical composition is carried out according to the national standard GB, T3462-2007 "Mo, Mo and Mo slab" of the technical requirements for implementation. Index main features are as follows: Card number Index Name GMPM. 1 GMHLM. 2 GMHYM. 3 Main content M. % ≥ 99 90 ≥ 99 45 ≥ 99 45 RE% January 11 01-0501-05 Impurities in% (01 (0 05 (005 W% ≤ 0 01 ≤ 0 01 ≤ 0 01 Various other impurities% ≤ 0 005 ≤ 0 005 ≤ 0 005 GMHI. M. 1 2, GMHYM. 3 is a high temperature rare earth lanthanum, yttrium molybdenum, and rare earth elements do not account for impurities. 6. Packaging Each beam is composed of the molybdenum rods of the same grade, batch composition and specification. 3-5 parts are tied by soft plastic ropes or wires and then are wrapped by moisture-proof paper .At last they are packaged in wooden or cardboard boxes with Vibration isolation foam placed in . If there are special requirements, both sides can negotiate. 7. During storage and transportation, molybdenum rod should be protected from moisture and violent collision. Products should be stored in a ventilated and dry acid-free atmosphere to prevent oxidation. Storage had better not be more than 6 months.
Black - Surface is "as swaged" or "as drawn"; retaining a coating of processing lubricants and oxides.
Ground - Surface is processed by grinding machine to remove all coating and to achieve precise diameter control.Main application: mainly used for electric vacuum components and electric light source partsGMPM. 1 GMHLM. 2 Molybdenum electrode rods bars