Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Laminar plasma reinforced alloy steel frog
The invention relates to a laminar plasma reinforced alloy steel frog with high hardness and high wear resistance on the surface. The laminar plasma reinforced alloy steel frog consists of an alloy steel point rail, a frog heel rail connected to heel end of the point rail, and wing rails distributed on the two sides of point the rail, and is connected with a high-strength bolt connecting piece through spacer iron. The surface layers of the wing rail and the fork heel rail are rapidly heated through laminar plasma beams such that the surface layer metal of the rail piece is rapidly heated to reach the temperature higher than the phase change critical point, therefore the heating surface layer area is subjected to modification change, an ultrafine and uniform quenched structure is formed, and the surface layer strength and abrasion resistance of the wing rail and the fork heel rail reach indexes on the premise that the internal structure and performance of a base body are not changed. The laminar plasma reinforced alloy steel frog has the advantages that the wing rail and the frog heel rail in the frog are reinforced; quenching structures are formed on the surfaces of the frogs, thehardness and depth of the frogs are evenly distributed on the surfaces of rail pieces, the surface hardness is greatly improved, the bearing capacity and abrasion resistance of the frogs are enhanced,meanwhile, the small sections of point rails are protected, the performance of the whole frogs is improved, and the service life is prolonged.
本发明涉及一种表面具有高硬度、高耐磨特性的层流等离子强化合金钢辙叉，由合金钢心轨、连接在心轨跟端的叉跟轨和分布在心轨两侧的翼轨组成，通过间隔铁和高强度螺栓连接件连接在一起，翼轨、叉跟轨表层通过层流等离子束进行快速加热，使轨件表层金属进行快速升温，达到相变临界点以上，使加热表层区域发生改性变化，形成超细、均匀的淬硬组织且在不改变基体内部组织和性能前提下，翼轨、叉跟轨表层强度和耐磨性达到指标。优点：层流等离子强化合金钢辙叉通过对辙叉中翼轨、叉跟轨进行强化处理，表面形成淬硬组织，其硬度、深度在轨件表面分布均匀，使表面硬度大幅提高，增强了其承载能力和耐磨性能，同时也保护了心轨小断面，使整组辙叉的性能和使用寿命得到提高。
Laminar plasma reinforced alloy steel frog
The invention relates to a laminar plasma reinforced alloy steel frog with high hardness and high wear resistance on the surface. The laminar plasma reinforced alloy steel frog consists of an alloy steel point rail, a frog heel rail connected to heel end of the point rail, and wing rails distributed on the two sides of point the rail, and is connected with a high-strength bolt connecting piece through spacer iron. The surface layers of the wing rail and the fork heel rail are rapidly heated through laminar plasma beams such that the surface layer metal of the rail piece is rapidly heated to reach the temperature higher than the phase change critical point, therefore the heating surface layer area is subjected to modification change, an ultrafine and uniform quenched structure is formed, and the surface layer strength and abrasion resistance of the wing rail and the fork heel rail reach indexes on the premise that the internal structure and performance of a base body are not changed. The laminar plasma reinforced alloy steel frog has the advantages that the wing rail and the frog heel rail in the frog are reinforced; quenching structures are formed on the surfaces of the frogs, thehardness and depth of the frogs are evenly distributed on the surfaces of rail pieces, the surface hardness is greatly improved, the bearing capacity and abrasion resistance of the frogs are enhanced,meanwhile, the small sections of point rails are protected, the performance of the whole frogs is improved, and the service life is prolonged.
本发明涉及一种表面具有高硬度、高耐磨特性的层流等离子强化合金钢辙叉，由合金钢心轨、连接在心轨跟端的叉跟轨和分布在心轨两侧的翼轨组成，通过间隔铁和高强度螺栓连接件连接在一起，翼轨、叉跟轨表层通过层流等离子束进行快速加热，使轨件表层金属进行快速升温，达到相变临界点以上，使加热表层区域发生改性变化，形成超细、均匀的淬硬组织且在不改变基体内部组织和性能前提下，翼轨、叉跟轨表层强度和耐磨性达到指标。优点：层流等离子强化合金钢辙叉通过对辙叉中翼轨、叉跟轨进行强化处理，表面形成淬硬组织，其硬度、深度在轨件表面分布均匀，使表面硬度大幅提高，增强了其承载能力和耐磨性能，同时也保护了心轨小断面，使整组辙叉的性能和使用寿命得到提高。
Laminar plasma reinforced alloy steel frog
一种层流等离子强化合金钢辙叉
CHE WEI (Autor:in) / WANG LEI (Autor:in) / ZHENG HUIFENG (Autor:in) / FU TAO (Autor:in) / GAO SHANGJUN (Autor:in)
08.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau