A processing method for civil air defense door hinge seat

Abstract

The invention discloses a method for processing a hinge seat of a civil air defense door, which comprises a core layer, a protective layer and a stable layer. The present invention improves the steel casting process. By controlling the thickness of the coating material, dry quartz sand without adhesives and additives is selected, and a double-structure sand box is used to set air holes and leakage nets to prevent gravel from entering the vacuum chamber. Guarantee the grasp of the gas tension scale during casting, and then improve the characteristics of the steel, so that the steel can reduce the porosity defects in the pouring process, improve the quality of the steel material, fundamentally improve the quality of the core layer steel, and ensure the stability of the steel. The protective layer ensures that the core layer still plays a fixed role after the cracked state. The outer periphery of the flexible layer is protected by a strong material, which again ensures the solid performance of the door hinge seat, improves safety and is easy to install and use, and adds a stable layer to the door hinge seat. Perform further base stabilization to further strengthen the combination between the door hinge seat and the wall.

Description

technical field [0001] The invention relates to the technical field of making civil air defense door accessories, in particular to a processing method for a civil air defense door hinge seat. Background technique [0002] Civil air defense, also known as civil defense, is an activity to prevent air raids, disaster relief measures, implement rescue operations, prevent and mitigate disasters, and civil air defense doors are civil defense protection equipment. Civil air defense doors are the doors of entrances and exits of civil protection projects. , there are ordinary single and double protective airtight doors and airtight doors, single and double protective airtight doors and airtight doors with living thresholds and other civil air defense equipment. The door hinge seat is an accessory of civil air defense doors. The door hinge leaf is connected, and the door hinge leaf is fixed by the door hinge seat. The hinge seat refers to the supporting hinge of the arc door. It is a...

AI Technical Summary

Problems solved by technology

[0003] At present, the civil air defense door is mostly used as the hinge seat of the suspension plate of the civil air defense door. The hinge seat of the suspension plate is connected to one end of the hinge leaf of the suspension plate, and the other end of the hinge leaf of the suspension plate is connected to the suspension plate. The hinge seat of the suspension plate is fixed on the door leaf, and the suspension plate is subjected to external force. It will bear a lot of force when it is strongly impacted, and the hinge seat of the suspension plate is easy to withstand excessive force and break, so it is necessary to strengthen the stability of the door hinge seat and the toughness of the material