Profile shaping preparation process

Abstract

The invention discloses a section material shaping manufacturing technology. The section material shaping manufacturing technology comprises the following steps of heating a die in a die furnace till the temperature of the die is 450-500 DEG C, evenly heating an aluminum bar in a bar furnace till the temperature of the aluminum bar is 480-520 DEG C, installing an on-line shaping device which is matched with section materials to be shaped at the position of a discharge port, roughly adjusting the center line of the on-line shaping device, placing the die which is evenly heated inside a die seat of an extruding machine, applying powdered lubricant on a die hole, placing the heated aluminum bar into an ingot containing barrel of the extruding machine, extruding the heated aluminum bar, finely adjusting the center position of the on-line shaping device to enable the section materials to fully and smoothly pass through the on-line shaping device, turning on a switch when the section materials advance for 0.8-1.5m in the on-line shaping device and the section materials are shaped, closing the on-line shaping device, adjusting the pressing force, loosening the on-line shaping device after extrusion of the sectional materials is finished, and finishing shaping of the section materials. The section material shaping manufacturing technology has the advantages that bi-directional double-face shaping can be achieved, the open-type section materials with one opening expanded and one opening shrunk are adjusted into the normal state, and therefore the input cost is reduced.

Description

technical field [0001] The invention relates to a profile shaping preparation process. Background technique [0002] Due to its high processing efficiency and easy production, hot extrusion has developed rapidly in recent years; but because of its high processing temperature and low hardness of the output, the product size generally deviates from the drawing, but due to the different market requirements in previous years High, and the section of the profile is generally relatively simple. With the continuous improvement of customer requirements in recent years, the difficulty of product section is increasing, and the production difficulty of the profile factory is also increasing. [0003] In the face of difficult openings, cantilevers and other similar sections, many aluminum profile manufacturers are hesitant. The main reason is that the cantilever is difficult, the opening is often on the outer ring of the mold center, and the unilateral pressure at the end of the profile...

AI Technical Summary

Problems solved by technology

However, in production, as the extrusion process progresses, the aluminum rod in the extrusion barrel changes from long to short, and the friction force decreases continuously, which will cause the flow velocity at the open end of the profile to be faster or slower: when it is faster, the profile will open, and when it is slower At this time, the profile will be closed, resulting in a piece of material that is opened and closed at the same time or closed and opened at the same time, and this kind of material that is opened and closed at the same time cannot be shaped, so once the opening exceeds the tolerance, it can only be scrapped, which is a serious waste. Very unfavorable for cost control of production

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