Double-action variable cross-section extruding device and extruding method

Abstract

The present invention discloses a double-action variable cross-section extruding device and an extruding method. The device comprises an ingot storing barrel; a fixed extruding die which comprises a life-size die hole; a double-action first extruding die which comprises a plurality of first molds; an extruding plunger which is used for extruding the ingots, wherein when the first modules are moved to a closed position, the first modules are formed with a first dimension mold and the squeeze plunger causes the extruder to pass through the original size mold cavity and then through the first size mold cavity to form a first size extruded member; and when the first modules are moved to an open position, the first modules do not form the first size mold cavity, and at this time the squeeze plunger causes the extruding plunger to flow only through the original mold cavity to form the original size extruded part, the original size and the first size of the extruded section.

Description

Technical field [0001] The invention relates to a variable cross-section extrusion device and an extrusion method, in particular to a multi-movement variable cross-section extrusion device and an extrusion method with a double-action extrusion die. Background technique [0002] Extrusion refers to forming the material by extrusion. The principle is to extrude the extruded material / ingot into the mold at a constant speed by moderate heating and pressure to make a product of the desired shape, size and physical properties. Suitable for the processing of easily shaped metal and plastic products. Aluminum extrusion is closely related to human life, and it is widely used from tableware, electronic products to automobile industry and construction. [0003] However, in the existing extrusion process, only extruded parts with equal cross-sections can be produced. If extruded parts with unequal cross-sections are required, multiple processing steps are required. For example, the uniform c...

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Problems solved by technology

[0003] However, in the existing extrusion process, only extrusions with equal cross-sections can be produced. If extrusions with unequal cross-sections are required, multiple processings are required

For example, the uniform cross-section profile is extruded by the extrusion process, and then complex secondary forming and welding are required to obtain irregular cross-sections, which leads to increased man-hours and costs, and loses the advantages of the extrusion process. performance

Furthermore, the current variable cross-section extrusion technology cannot produce circular variable cross-section extrusions

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