Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of geogrids, and particularly discloses a geogrid adopting a hot extrusion and cold pressing process and a forming method, the geogrid comprises a geogrid body, the geogrid body comprises a first grid belt and a second grid belt which are in staggered lap joint, and a wrapping node can be formed at the joint of the first grid belt and the second grid belt. And the geogrid is formed more uniformly through the steps of mold preparation, raw material hot melting, melt hot extrusion, constant-temperature retention, grid cold pressing, cooling demolding and the like. According to the geogrid, wrapping nodes are arranged at the staggered lap joint positions of the first grid belt and the second grid belt, the connecting strength of the welded geogrid can be obviously improved, meanwhile, thermal shock caused to the geogrid in the welding process in the prior art can be avoided through the hot extrusion and cold pressing process, and the geogrid is formed more evenly. The residual stress of the geogrid can be balanced to the greatest extent through a hot extrusion and cold press molding method and a constant-temperature retention process, so that the connection strength and the deformation resistance of the geogrid are greatly improved.
本发明涉及土工格栅技术领域，具体公开了一种热挤冷压工艺的土工格栅及成型方法，包括土工格栅本体，土工格栅本体包括交错搭接的第一格栅带与第二格栅带，第一格栅带、第二格栅带的连接处能够形成包復结点。并通过模具准备、原料热熔、熔料热挤、恒温驻留、格栅冷压、冷却脱模等步骤使得土工格栅的成型更加均匀。本发明在第一格栅带、第二格栅带交错搭接处设置有包復结点，能够明显提高焊接土工格栅的连接强度，同时通过热挤冷压工艺能够规避现有技术中在焊接时对土工格栅造成的热冲击，使得土工格栅的成型更加均匀。通过热挤冷压成型方法与恒温驻留工艺能够最大程度的平衡土工格栅的残余应力，使得土工格栅的连接强度、抗变形能力大幅度提高。
The invention relates to the technical field of geogrids, and particularly discloses a geogrid adopting a hot extrusion and cold pressing process and a forming method, the geogrid comprises a geogrid body, the geogrid body comprises a first grid belt and a second grid belt which are in staggered lap joint, and a wrapping node can be formed at the joint of the first grid belt and the second grid belt. And the geogrid is formed more uniformly through the steps of mold preparation, raw material hot melting, melt hot extrusion, constant-temperature retention, grid cold pressing, cooling demolding and the like. According to the geogrid, wrapping nodes are arranged at the staggered lap joint positions of the first grid belt and the second grid belt, the connecting strength of the welded geogrid can be obviously improved, meanwhile, thermal shock caused to the geogrid in the welding process in the prior art can be avoided through the hot extrusion and cold pressing process, and the geogrid is formed more evenly. The residual stress of the geogrid can be balanced to the greatest extent through a hot extrusion and cold press molding method and a constant-temperature retention process, so that the connection strength and the deformation resistance of the geogrid are greatly improved.
本发明涉及土工格栅技术领域，具体公开了一种热挤冷压工艺的土工格栅及成型方法，包括土工格栅本体，土工格栅本体包括交错搭接的第一格栅带与第二格栅带，第一格栅带、第二格栅带的连接处能够形成包復结点。并通过模具准备、原料热熔、熔料热挤、恒温驻留、格栅冷压、冷却脱模等步骤使得土工格栅的成型更加均匀。本发明在第一格栅带、第二格栅带交错搭接处设置有包復结点，能够明显提高焊接土工格栅的连接强度，同时通过热挤冷压工艺能够规避现有技术中在焊接时对土工格栅造成的热冲击，使得土工格栅的成型更加均匀。通过热挤冷压成型方法与恒温驻留工艺能够最大程度的平衡土工格栅的残余应力，使得土工格栅的连接强度、抗变形能力大幅度提高。
Geogrid adopting hot extrusion and cold pressing process and forming method
一种热挤冷压工艺的土工格栅及成型方法
WANG FEI (Autor:in)
31.05.2022
Patent
Elektronische Ressource
Chinesisch
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