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Closed-hole foamed aluminum component being easy to install and preparation method thereof

A closed-cell aluminum foam, easy-to-install technology, applied in the field of closed-cell aluminum foam components, can solve the problems of poor fixation of foamed aluminum, difficult to effectively fix foamed aluminum, and high density, and achieve mass production and easy mass production. , the effect of the simple method

Active Publication Date: 2015-04-01
LIAONING RONGDA NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent (ZL99221233.2) discloses a high-energy-absorbing foam metal bumper, which is to disperse small pieces of energy-absorbing aluminum foam between the protective mask and the car body, but the patent bumper It is difficult to effectively fix the foamed aluminum, and the position without the foamed aluminum cannot effectively resist the impact of the outside world; in order to avoid the defect of the bumper announced in the ZL99221233.2 patent, the patent ZL200420069769. A new type of vehicle bumper composed of body and frame, which has excellent impact energy absorption characteristics, but due to the porosity of foamed aluminum, the method of fixing foamed aluminum with self-tapping screws described in the patent may cause foamed aluminum It is not firmly fixed in the bumper, which affects the long-term service life of this type of bumper
In addition, the above two patents both use finished aluminum foam as a bumper component, and they are all assembled instead of forming the bumper at one time, which will inevitably lead to higher cost of the bumper; patent 201210115380.4 discloses a Granular bumper, which has excellent energy absorption but is dense and problematic to install

Method used

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  • Closed-hole foamed aluminum component being easy to install and preparation method thereof
  • Closed-hole foamed aluminum component being easy to install and preparation method thereof
  • Closed-hole foamed aluminum component being easy to install and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0040] The process of preparing foamed aluminum components that are easy to install by directly pouring foamed aluminum melt into closed-cell foamed aluminum component molds

[0041] This embodiment adopts TiH 2 As a foaming agent, 102 alloy is used as the aluminum alloy raw material. Combine below figure 1 , figure 2 and image 3 Now, this embodiment will be described.

[0042] The first step is the preparation of dissolvable prefabricated parts containing bolts. For the specific process, see figure 2 :

[0043] ① Prepare the mixed powder material for the preparation of soluble preforms, according to TiB 2 40wt%, FeO20wt%, CaSO 4 0.5H 2 O20wt% and MgSO 4 Weigh the raw material powder at 20 wt%, and then mix these powders in a three-dimensional mixer for 2 hours, and finally, while stirring the powder, spray 5% water of the powder mass into the mixed powder to obtain the mixed powder material 2001;

[0044] ② Put part of the mixed powder material 2001 in the pressu...

Embodiment 2

[0062] The process of preparing closed-cell foamed aluminum components by pouring aluminum melt into the inner mold → adding foaming agent → lifting out the inner mold

[0063] This embodiment adopts TiH 2 As the foaming agent, 6063 alloy is used as the aluminum alloy raw material. Combine below figure 1 , figure 2 and Figure 4 Now, this embodiment will be described.

[0064] The first step is the preparation of dissolvable prefabricated parts containing bolts. For the specific process, see figure 2 .

[0065] ① Prepare the mixed powder material for the preparation of soluble preforms. According to 50wt%TiB 2 , 20wt%Fe 2 o 3 , 5wt%CaSO 4 0.5H 2 O with 25wt%K 2 SO 4 Weigh the raw material powders, and then mix these powders in a three-dimensional mixer for 4 hours, and finally, while stirring the powders, spray 5% water of the powder mass into the mixed powders to obtain the mixed powder material 2001.

[0066] ② Put part of the mixed powder material 2001 in th...

Embodiment 3

[0084] The process of preparing closed-cell foamed aluminum components by pouring aluminum melt into the inner mold → adding foaming agent → lifting out the inner mold

[0085] This embodiment adopts TiH 2 As the foaming agent, 6063 alloy is used as the aluminum alloy raw material. Combine below figure 1 , figure 2 and Figure 4 Now, this embodiment will be described.

[0086] The first step is the preparation of dissolvable prefabricated parts containing bolts. For the specific process, see figure 2 .

[0087] ① Prepare the mixed powder material for the preparation of soluble preforms, according to TiB 2 45wt%, FeO20wt%, CaSO 4 0.5H 2 O20wt% and MgSO 4 Weigh the raw material powder at 15wt%, then mix these powders in a three-dimensional mixer for 2 hours, and finally, while stirring the powder, spray 5% of the powder mass into the mixed powder to obtain the mixed powder material 2001;

[0088] ② Put part of the mixed powder material 2001 in the pressure mold 2002,...

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Abstract

The invention discloses a closed-hole foamed aluminum component being easy to install and a preparation method thereof. The closed-hole foamed aluminum component is that bolts for being in connection with other parts are pre-buried in a closed-cell aluminum component body, and aluminum solid bodies are arranged at the pre-buried bolts. The preparation method of the closed-cell foamed aluminum component being easy to install comprises the following steps of: preparing a soluble-scattered prefabticated member containing the bolts, assembling and preheating a closed-hole aluminum component mould, injecting a foaming melt in a component mould after preheating, dissolving and scattering the prefabticated member, injecting molten aluminum on the prefabticated member, cutting and removing a foam-free layer and the like. The closed-hole foamed aluminum component and the preparation method thereof provided by the invention have the advantages that the prepared closed-hole aluminum component can realize the connection with the other parts, a connecting part does not collapse as being subjected to an external force, in addition, the aluminum dosage at the connecting part is small, and thus the porous aluminum component with the light weight is obtained.

Description

technical field [0001] The invention relates to a closed-cell foamed aluminum component, in particular to an easy-to-install closed-cell foamed aluminum component that can be used as a motor vehicle bumper and the like. The invention also relates to a preparation method of the closed-celled foamed aluminum component. Background technique [0002] The development of modern automobile technology requires anti-collision materials (so-called bumpers) with good energy absorption performance, light weight and easy installation. For this reason, many people have carried out a lot of research. The patent (ZL99221233.2) discloses a high-energy-absorbing foam metal bumper, which is to disperse small pieces of energy-absorbing aluminum foam between the protective mask and the car body, but the patent bumper It is difficult to effectively fix the foamed aluminum, and the position without the foamed aluminum cannot effectively resist the impact of the outside world; in order to avoid the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/08B22D21/04
Inventor 朱德琳
Owner LIAONING RONGDA NEW MATERIALS TECH CO LTD
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