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METHOD FOR SEALING CASTING MOULD FOR ALUMINOTHERMIC RAIL WELDINGS
A casting mould (6) consists of two mould halves (4, 5) which are intended for setting up at both sides of the welding groove (3) between two rail ends (1, 2) to be connected, thereby forming a casting space (8) representing a cross-sectional profile of the rails. For sealing the casting space (8) between the rail bodies at both sides of the welding groove (3) and the wall portions (9, 10) of thecasting mould (6) that are facing this welding groove, inserted in gaps (11, 12) are strips consisting of a compound at least containing expandable graphite, which as a result of heat being supplied during a preheating process expands and forms a reliable seal. In comparison with using filler sand at this point, there is the advantage that a much smaller quantity of compound has to be carried along when working on the laid track.
铸模(6)具有两个半模(4、5)，所述两个半模规定用于竖立在在两个有待连接的轨道端部(1、2)之间的焊接坡口(3)的两侧，在此形成了构成轨道横截面轮廓的铸造室(8)。为了在焊接坡口(3)的两侧的轨道本体和铸模(6)的面朝这个轨道本体的壁区段(9、10)之间密封铸造室(8)，在槽(11、12)中使用由至少含有膨胀石墨的物质制成的带，所述带通过热量输入在预热期间扩张并且形成了可靠的密封。与使用填充砂相比，在此产生的优点是，在铺设的轨道中作业时必然携带少得多的质量。
METHOD FOR SEALING CASTING MOULD FOR ALUMINOTHERMIC RAIL WELDINGS
A casting mould (6) consists of two mould halves (4, 5) which are intended for setting up at both sides of the welding groove (3) between two rail ends (1, 2) to be connected, thereby forming a casting space (8) representing a cross-sectional profile of the rails. For sealing the casting space (8) between the rail bodies at both sides of the welding groove (3) and the wall portions (9, 10) of thecasting mould (6) that are facing this welding groove, inserted in gaps (11, 12) are strips consisting of a compound at least containing expandable graphite, which as a result of heat being supplied during a preheating process expands and forms a reliable seal. In comparison with using filler sand at this point, there is the advantage that a much smaller quantity of compound has to be carried along when working on the laid track.
铸模(6)具有两个半模(4、5)，所述两个半模规定用于竖立在在两个有待连接的轨道端部(1、2)之间的焊接坡口(3)的两侧，在此形成了构成轨道横截面轮廓的铸造室(8)。为了在焊接坡口(3)的两侧的轨道本体和铸模(6)的面朝这个轨道本体的壁区段(9、10)之间密封铸造室(8)，在槽(11、12)中使用由至少含有膨胀石墨的物质制成的带，所述带通过热量输入在预热期间扩张并且形成了可靠的密封。与使用填充砂相比，在此产生的优点是，在铺设的轨道中作业时必然携带少得多的质量。
METHOD FOR SEALING CASTING MOULD FOR ALUMINOTHERMIC RAIL WELDINGS
用于密封铝热轨道焊接用的铸模的方法
HANTUSCH JAN (author) / ANGENENDT WERNER (author) / HEINIG SOPHIA (author) / REINICKE THOMAS (author) / MECKL DANIEL (author)
2021-03-26
Patent
Electronic Resource
Chinese
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