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Aluminum wheel rim low-pressure casting mold with heat conduction system

A technology of low-pressure casting and heat conduction, which is applied in the field of low-pressure casting molds for aluminum alloy wheel rims, can solve problems such as the inability to guarantee the continuous and periodic production of the casting process, and achieve the effect of continuous and periodic casting production and the improvement of material strength

Pending Publication Date: 2018-10-12
NANJING VOCATIONAL UNIV OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to improve the casting strength of the existing aluminum alloy materials and solve the technical problems in the prior art that the continuous and periodic production of the casting process cannot be guaranteed, the present invention provides a low-pressure casting mold for aluminum wheel rims with a heat conduction system. The rapid cooling of the export system promotes the rapid solidification and grain refinement of the alloy, and obtains aluminum alloy castings with high strength rims; through the heat introduction system, the temperature of the mold is timely raised to a suitable alloy liquid casting filling, thereby realizing the continuous periodic casting production of aluminum wheel rims

Method used

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  • Aluminum wheel rim low-pressure casting mold with heat conduction system
  • Aluminum wheel rim low-pressure casting mold with heat conduction system
  • Aluminum wheel rim low-pressure casting mold with heat conduction system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] refer to figure 1 , figure 1 It is a schematic diagram of the half-section structure of Embodiment 1 of the aluminum wheel rim low-pressure casting mold of the present invention, including a side mold 1, a fixed mold 2 and a bottom mold 3, figure 1 Only the structure of one side mold is shown, and the structures of the other three side molds are the same as this side mold. After the four side molds 1 are closed, they form a thin-walled rim cavity 4 with the fixed mold 2 and the bottom mold 3 . The mold wall of the side mold 1 is provided with a heat export system 5 and a temperature sensor 7 for measuring the temperature of the mold wall of the side mold, and the outer surface of the side mold 1 is provided with a heat introduction system 6 .

[0025] In this embodiment, the heat removal system 5 includes a general inlet tunnel 51 , a total outlet tunnel 52 , and several fan-shaped tunnels 51 surrounding the cavity. The fan-shaped annular channel channels 51 are arran...

Embodiment 1

[0028] Example 1 works like this:

[0029] When the alloy fills the thin-walled rim cavity 4, the heat export system 5 is started, that is, cold oil is introduced into the general inlet channel 52, and the cold oil flows into each inlet of the fan annular channel 51 through the general inlet channel 52, and flows through the fan annular channel The tunnels 51 then converge from each outlet to the general outlet pipeline 53, and flow out of the mold through the total outlet pipeline 53. During the flow of the cold oil in the mold wall, the latent heat of alloy crystallization and crystallization heat are quickly transferred out. When the temperature of the side mold part shown by the temperature sensor 7 reaches 430° C., stop feeding the cold oil, and the heat derivation system 5 stops working, and stops the heat exchange.

[0030] When entering the next casting cycle, start the heat introduction system 6 60-80 seconds before the mold opening command, that is, the electric heat...

Embodiment approach 2

[0032] refer to image 3 and Figure 4 Embodiment 2 is basically the same as Embodiment 1, except that the heating device is a total inlet pipe 64, a total outlet pipe 65 arranged in the heat transfer oil, and a plurality of fan-shaped circular pipes 61 surrounding the cavity; Described fan annular pipe 61 is arranged at intervals from top to bottom, and its inlet end is communicated with through total inlet pipe 64, and outlet end is communicated through total outlet pipe 65; All are closed, and the other ends extend to the outside of the mold through the heat insulating layer 62 and communicate with the space outside the mold.

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Abstract

The invention discloses an aluminum wheel rim low-pressure casting mold. The aluminum wheel rim low-pressure casting mold comprises four side molds same in structure, a top mold and a bottom mold. A thin-wall wheel rim cavity is formed by the four side molds, the top mold and the bottom mold after the four side molds fold. A heat leading-out system and a temperature sensor are arranged on the moldwall of each side mold. Each temperature sensor is used for measuring the temperature of the mold wall of the corresponding side mold. The heat leading-out systems are used for quickly leading out the heat released in the alloy solidification process. A heat leading-in system is arranged on the outer surface of each side mold. The heat leading-in systems are used for quickly rising the temperature of the mold for a wheel rim. According to the technical scheme of the aluminum wheel rim low-pressure casting mold, in the production process of continuously repeating the casting cycle of aluminumwheels, the temperature of the molds at the position of the wheel rim is quickly lowered through a cooling system, a quick temperature rising system is timely started to rise the temperature of the mold for the wheel rim, and it is achieved that the mold is suitable for casting aluminum wheel rims with high quality and high strength.

Description

technical field [0001] The invention relates to a low-pressure casting mold for an aluminum alloy wheel rim, in particular to a low-pressure casting mold for an aluminum wheel rim with a heat conduction system. Background technique [0002] The development of the automobile industry is changing with the change of people's consumption concept. The safety and lightweight of automobiles have become one of the needs of consumers. The safety and weight reduction of automobiles means the safety and weight reduction of the various components that make up the automobile. As the moving parts of automobile components, aluminum alloy wheels with light weight and high strength are increasingly favored by consumers. The casting technology, process, quality and process of aluminum alloy wheels mark the manufacturing level of aluminum alloy wheels to some extent. [0003] The achievement of high strength comes from the improvement of the strength of the alloy material. In the production ...

Claims

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Application Information

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IPC IPC(8): B22D18/04
CPCB22D18/04
Inventor 杨静丽苗怀有
Owner NANJING VOCATIONAL UNIV OF IND TECH
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