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Local loading forced feeding and core pulling device of large aluminum alloy extrusion casting mold

A technology of squeeze casting and local loading, applied in the field of feeding and core pulling devices, can solve the problems of insignificant pressure gradient pressure effect of components, no pressure effect, poor feeding effect, etc., to achieve simple structure, processing and manufacturing Low cost, easy disassembly and assembly

Active Publication Date: 2021-06-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problem that the pressure gradient of large and uneven wall thickness components in existing squeeze casting feeding is not obvious or does not have pressure effect and the feeding effect is not good in some areas, and provides A Partially Loaded Forced Feeding and Core Pulling Device for a Large Aluminum Alloy Squeeze Casting Mold

Method used

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  • Local loading forced feeding and core pulling device of large aluminum alloy extrusion casting mold
  • Local loading forced feeding and core pulling device of large aluminum alloy extrusion casting mold
  • Local loading forced feeding and core pulling device of large aluminum alloy extrusion casting mold

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Experimental program
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specific Embodiment approach 1

[0038] Specific implementation mode 1: This implementation mode is a partially loaded forced feeding and core-pulling device for a large aluminum alloy squeeze casting mold, such as Figure 1-Figure 8 shown, specific

[0039] It is composed of a primary feeding mechanism 19 and a secondary feeding mechanism 18;

[0040] The first-stage feeding mechanism 19 is composed of a first-stage pressurization mold cylinder 1, a core-pulling mold cylinder 2, a fixed backing plate 3, a fixed pad 4, a connecting pad 5, a slider 6, a pressure-filling rod 7, a sliding Backing plate 8, sliding pressure plate 9, coupling 10, guide rod 11, flange 12 and I-shaped buckle 13;

[0041] The cylinder body 1-2 of the first-stage pressurizing mold cylinder and the cylinder body 2-2 of the two core-pulling mold cylinders are respectively fixed on one side surface of the fixed backing plate 3 through a flange 12, and the two core-pulling mold cylinders 2 are respectively Set on both sides of the fixed ...

specific Embodiment approach 2

[0045] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the pressure replenishing rod 7 is a cuboid structure. Others are the same as the first embodiment.

specific Embodiment approach 3

[0046] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 or 2 is that the pressure replenishing rod 7 is a cylindrical structure. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a local loading forced feeding and core pulling device of a large aluminum alloy extrusion casting mold, and relates to a feeding and core pulling device of an aluminum alloy extrusion casting mold. The invention aims to solve the technical problems that the pressure effect of some areas is not obvious or does not have the pressure effect due to pressure gradient existing in the extrusion casting forming process of a large component with non-uniform wall thickness, and shrinkage cavities and shrinkage porosity exist. According to the device, a mold feeding function and a core pulling function are combined, and a first-stage feeding mechanism and a second-stage feeding mechanism are provided; according to the two-stage feeding mechanism, an independent feeding mold oil cylinder is additionally arranged to work together with an original feeding mold oil cylinder, so that double-cylinder series feeding is realized; and the two-stage feeding mechanism is an extension of the first-stage feeding mechanism, the double cylinders can simultaneously progress and can also progress in a staggered manner, so that the process applicability is wide.

Description

technical field [0001] The invention relates to a feeding and core-pulling device for an aluminum alloy extrusion casting mold. Background technique [0002] The internal quality of load-bearing components is very important to the performance of components. However, components with uneven wall thickness are prone to thermal knots, resulting in casting defects such as shrinkage cavities and porosity, which affect performance. Lifting has always been a research content in the field of material processing. [0003] The blanks of formed components are mostly cast and forged, and there are various types of processes. Casting can form complex parts, but traditional casting methods have problems such as low yield and poor performance; through forging modification, the structure and performance of parts are significantly improved, and the quality is excellent, but it is difficult to form complex parts. Squeeze casting is a process of filling, solidification, crystallization and fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/02B22D29/00
CPCB22D18/02B22D29/001
Inventor 姜巨福李明星王迎
Owner HARBIN INST OF TECH
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