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Preparation method of magnesium alloy automobile engine bracket

A technology of automobile engine and magnesium alloy is applied in the field of preparation of automobile engine bracket to achieve the effect of weight reduction

Inactive Publication Date: 2015-08-05
浙江盾安轻合金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still room for further improvement in the direction of weight reduction, and a matching preparation method is required to ensure the strength and structural performance of the engine bracket while reducing weight

Method used

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  • Preparation method of magnesium alloy automobile engine bracket

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation method of the magnesium alloy automobile engine bracket of embodiment 1 of the present invention comprises the following steps:

[0018] Preparation of automobile engine bracket sand core 11, ingate sand core 12 and runner sand mold 13:

[0019] Use resin self-hardening sand for magnesium alloy sand casting to mold the automobile engine bracket sand core 11, ingate sand core 12 and runner sand mold 13, and after curing, mold the engine bracket sand core 11 and ingate sand core 12 is taken out from the mould, and the runner sand mold 13 is painted with paint.

[0020] Bake the metal mold for the car engine bracket:

[0021] Put the metal mold of the automobile engine bracket into a heating furnace for baking to remove the moisture in the cavity of the metal mold. The baking process is: temperature 400 ° C, baking time 6 hours.

[0022] Smelting of magnesium alloy raw materials:

[0023] The raw material is the AZ91D magnesium alloy raw material on the ...

Embodiment 2

[0041] The preparation method of the magnesium alloy automobile engine bracket of the second embodiment of the present invention comprises the following steps:

[0042] Preparation of automobile engine bracket sand core 11, ingate sand core 12 and runner sand mold 13:

[0043] Use resin self-hardening sand for magnesium alloy sand casting to mold the automobile engine bracket sand core 11, ingate sand core 12 and runner sand mold 13, and after curing, mold the engine bracket sand core 11 and ingate sand core 12 is taken out from the mould, and the runner sand mold 13 is painted with paint.

[0044] Bake the metal mold for the car engine bracket:

[0045] Put the metal mold of the automobile engine bracket into the heating furnace for baking to remove the water vapor in the cavity of the metal mold. The baking process is: temperature 460°C, time 8h.

[0046] Raw material for smelting magnesium alloy:

[0047] The raw material is the AZ91D magnesium alloy raw material on the ...

Embodiment 3

[0065] The preparation method of the magnesium alloy automobile engine bracket of the third embodiment of the present invention comprises the following steps:

[0066] Preparation of automobile engine bracket sand core 11, ingate sand core 12 and runner sand mold 13:

[0067] Use resin self-hardening sand for magnesium alloy sand casting to mold the automobile engine bracket sand core 11, ingate sand core 12 and runner sand mold 13, and after curing, mold the engine bracket sand core 11 and ingate sand core 12 is taken out from the mould, and the runner sand mold 13 is painted with paint.

[0068] Baking Auto Engine Bracket Metal Type Mold:

[0069] Put the metal mold of the automobile engine bracket into the heating furnace for baking to remove the moisture in the cavity of the metal mold. The baking process is: temperature 500°C, time 10h.

[0070] Raw material for smelting magnesium alloy:

[0071] The raw material is the AZ91D magnesium alloy raw material on the market,...

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Abstract

A preparation method of a magnesium alloy car engine supporting frame comprises the following steps that a car engine supporting frame sand core, an ingate sand core and a cross gate sand mould are prepared; a car engine supporting frame metal mould is baked; the car engine supporting frame metal mould is put into a heating furnace to be baked; magnesium alloy raw materials are smelted, firstly the magnesium alloy raw materials are melted inside a crucible, the temperature rises to 730-760 DEG C, the magnesium alloy raw materials are refined for 5-10 minutes, the molten magnesium is made to stand still for 30-38 minutes at 740-750 EDG C, and the temperature is adjusted to 710-728 DEG C to prepare for pouring; the magnesium alloy car engine supporting frame mould and the gate sand mould are assembled; the magnesium alloy car engine supporting frame is poured. Compared with an existing engine supporting frame, the prepared magnesium alloy car engine supporting frame is a hollow thin-wall structure casting, the weight is reduced by 30-40%, the magnesium alloy car engine supporting frame can be designed to be of various shapes, and the design requirement of actual products is met.

Description

technical field [0001] The invention relates to a preparation method of an automobile engine bracket, in particular to a preparation method of a magnesium alloy automobile engine bracket. Background technique [0002] For the automotive industry, the fuel consumption and exhaust emissions of a car are actually proportional to its inertial mass, not its static mass. Reducing the weight of components with large inertial mass has a more significant effect on reducing fuel consumption and exhaust emissions. In the vehicle power system, the engine bracket is an important weight-reducing component, which accounts for 10-15% of the total weight of the vehicle power system. The weight of the traditional bulging steel pipe welded engine bracket is about 25 to 28 kilograms, which is a large load element. At the same time, because most cars are front-wheel drive, if the weight of the front cabin is too heavy, it will cause excessive steering when the vehicle turns, and the braking di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D21/04B22D17/00
Inventor 谢志军王自毅
Owner 浙江盾安轻合金科技有限公司