Hot extrusion process of bottom outgoing line blank for solid-sealed pole

Abstract

The invention discloses a hot extrusion process of a bottom outgoing line blank for a solid-sealed pole. The hot extrusion process of the bottom outgoing line blank for the solid-sealed pole comprisesthe following steps of: sawing and cutting, that is, using a three-dimensional drawing software to create a 3D model of an extruded blank, simulating and calculating the weight of the blank, and determining the specification and dimension of blanking; blank heating, that is, performing heating and insulation treatment on the sawed bar in a resistance furnace according to the nominal pressure value of the extrusion equipment; mould preheating, that is, putting the heated blank into a forming mould, preheating the forming mould, and taking out the preheated blank when the temperature detected by an infrared thermometer reaches a preset value; hot press forming, that is, putting the heated and heat-preserved blank into the forming mould for extrusion forming; and demoulding, that is, performing demoulding using a hydraulic machine ejector mechanism. The invention uses the hot extrusion forming process to produce the bottom outgoing line blank, which shortens the blank production time, improves the blank quality, saves the product production cost, and is suitable for mass promotion.

Description

Technical field [0001] The invention relates to the technical field of hot extrusion molding, in particular to a hot extrusion process of a bottom outlet blank for a solid-sealed pole. Background technique [0002] The upper and lower outlet sockets are an important component of the solid-sealed pole vacuum circuit breaker. With the modularization, integration and compact structure of the circuit breaker design, the product quality and technical requirements for the upper and lower outlet sockets continue to increase. The upper and lower outlet seats are pure copper special-shaped parts with irregular shapes and structures. The blanks need to be made in advance, and then the finished products are obtained through mechanical processing. The length and quality of the preliminary blanks directly affect the quality and delivery cycle of the finished products. [0003] Currently, die forging, casting process, free forging and other process methods are widely used in the society to produ...

AI Technical Summary

Problems solved by technology

[0003] At present, die forging, casting technology, free forging and other processes are generally used in the society to make lower outlet blanks. Die forging technology requires special die forging equipment, and the mold structure is relatively complicated, and the mold input cost is high, which is suitable for mass production. The quality of the casting blank is greatly affected by whether the pouring system, feeding system and air outlet design are reasonable in the casting process, and various types of defects are prone to occur, such as: insufficient pouring, cold shut, slag inclusion, inclusions, and pores Wait

Free forging relies on manual operation to control the shape and size of the forging, so the precision of the forging is low, the machining allowance is large, the labor intensity is high, and the productivity is not high. It is suitable for single piece and small batch production

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