A buffer column for road

Abstract

A buffer column for roads, the buffer column is cylindrical, the core of the buffer column is a particle-reinforced foamed aluminum-based composite material, the core is wrapped with an elastic material layer, the elastic material layer is a titanium alloy cylinder, and the foam base aluminum base The alloy better ensures that the product has a better impact resistance effect, and at the same time reduces the product quality; the particle-reinforced aluminum foam matrix composite material can better absorb impact energy.

Description

technical field

[0001] The invention relates to a road buffer column, which belongs to the technical field of anti-collision parts. Background technique

[0002] Buffer columns are mainly installed on highways and urban roads where cars and fixed facilities in the road are likely to collide, such as: road corners, road guard boxes, toll stations and elevated road entrances and exits, parking lots, residential areas, gardens, refueling Stations, etc., play a buffer role. When the car collides with the device, it can effectively reduce the impact force and slow down the collision energy. Therefore, it can significantly reduce the damage to the car and people. In the prior art, the cushioning is poor, the cost is high, the service life is short, and the safety is low. Contents of the invention

[0003] A buffer column for roads, the buffer column is cylindrical, the core of the buffer column is a particle-reinforced foamed aluminum-based composite material, the core is wrapp...

Examples

Embodiment 1

[0041] A buffer column for roads, the buffer column is cylindrical, the core of the buffer column is a particle-reinforced foamed aluminum-based composite material, the core is wrapped with an elastic material layer, and the elastic material layer is a titanium alloy cylinder, which is characterized in that:

[0042] The particle-reinforced foamed aluminum-based composite material is prepared by the following preparation method:

[0043] Prepare an aluminum alloy ingot, its composition percentage is: Cr 3%, Ni 1%, Mo 0.7%, Mg 0.1%, Zn 0.1%, Fe 0.07%, Ce 0.03%, Nb 0.01%, and the balance is Al;

[0044] Melt the above-mentioned aluminum alloy and raise the temperature to 700°C-760°C, pass through protective Ar gas to refine and keep it warm for 10 minutes;

[0045] Add thickener accounting for 6-7% of the total weight of the melt and add silicon carbide and / or alumina particles accounting for 10-12% of the mass fraction of the melt, stir the molten metal at a speed of 500-800rpm...

Embodiment 2

[0053] A buffer column for roads, the buffer column is cylindrical, the core of the buffer column is a particle-reinforced foamed aluminum-based composite material, the core is wrapped with an elastic material layer, and the elastic material layer is a titanium alloy cylinder, which is characterized in that:

[0054] The particle-reinforced foamed aluminum-based composite material is prepared by the following preparation method:

[0055] Prepare an aluminum alloy ingot, its composition percentage is: Cr 4%, Ni 2%, Mo 0.8%, Mg 0.2%, Zn 0.2%, Fe 0.08%, Ce 0.04%, Nb 0.02%, and the balance is Al;

[0056] Melt the above-mentioned aluminum alloy and raise the temperature to 700°C-760°C, pass through protective Ar gas to refine and keep it warm for 10 minutes;

[0057] Add thickener accounting for 6-7% of the total weight of the melt and add silicon carbide and / or alumina particles accounting for 10-12% of the mass fraction of the melt, stir the molten metal at a speed of 500-800rpm...

Embodiment 3

[0065] A buffer column for roads, the buffer column is cylindrical, the core of the buffer column is a particle-reinforced foamed aluminum-based composite material, the core is wrapped with an elastic material layer, and the elastic material layer is a titanium alloy cylinder, which is characterized in that:

[0066] The particle-reinforced foamed aluminum-based composite material is prepared by the following preparation method:

[0067] Prepare an aluminum alloy ingot, its composition percentage is: Cr 3.5%, Ni 1.5%, Mo 0.75%, Mg 0.15%, Zn 0.15%, Fe 0.075%, Ce 0.035%, Nb 0.015%, and the balance is Al;

[0068] Melt the above-mentioned aluminum alloy and raise the temperature to 700°C-760°C, pass through protective Ar gas to refine and keep it warm for 10 minutes;

[0069] Add thickener accounting for 6-7% of the total weight of the melt and add silicon carbide and / or alumina particles accounting for 10-12% of the mass fraction of the melt, stir the molten metal at a speed of ...

technical field

[0001] The invention relates to a road buffer column, which belongs to the technical field of anti-collision parts. Background technique

[0002] Buffer columns are mainly installed on highways and urban roads where cars and fixed facilities in the road are likely to collide, such as: road corners, road guard boxes, toll stations and elevated road entrances and exits, parking lots, residential areas, gardens, refueling Stations, etc., play a buffer role. When the car collides with the device, it can effectively reduce the impact force and slow down the collision energy. Therefore, it can significantly reduce the damage to the car and people. In the prior art, the cushioning is poor, the cost is high, the service life is short, and the safety is low. Contents of the invention

[0003] A buffer column for roads, the buffer column is cylindrical, the core of the buffer column is a particle-reinforced foamed aluminum-based composite material, the core is wrapp...

Examples

Embodiment 1

[0041] A buffer column for roads, the buffer column is cylindrical, the core of the buffer column is a particle-reinforced foamed aluminum-based composite material, the core is wrapped with an elastic material layer, and the elastic material layer is a titanium alloy cylinder, which is characterized in that:

[0042] The particle-reinforced foamed aluminum-based composite material is prepared by the following preparation method:

[0043] Prepare an aluminum alloy ingot, its composition percentage is: Cr 3%, Ni 1%, Mo 0.7%, Mg 0.1%, Zn 0.1%, Fe 0.07%, Ce 0.03%, Nb 0.01%, and the balance is Al;

[0044] Melt the above-mentioned aluminum alloy and raise the temperature to 700°C-760°C, pass through protective Ar gas to refine and keep it warm for 10 minutes;

[0045] Add thickener accounting for 6-7% of the total weight of the melt and add silicon carbide and / or alumina particles accounting for 10-12% of the mass fraction of the melt, stir the molten metal at a speed of 500-800rpm...

Embodiment 2

[0053] A buffer column for roads, the buffer column is cylindrical, the core of the buffer column is a particle-reinforced foamed aluminum-based composite material, the core is wrapped with an elastic material layer, and the elastic material layer is a titanium alloy cylinder, which is characterized in that:

[0054] The particle-reinforced foamed aluminum-based composite material is prepared by the following preparation method:

[0055] Prepare an aluminum alloy ingot, its composition percentage is: Cr 4%, Ni 2%, Mo 0.8%, Mg 0.2%, Zn 0.2%, Fe 0.08%, Ce 0.04%, Nb 0.02%, and the balance is Al;

[0056] Melt the above-mentioned aluminum alloy and raise the temperature to 700°C-760°C, pass through protective Ar gas to refine and keep it warm for 10 minutes;

[0057] Add thickener accounting for 6-7% of the total weight of the melt and add silicon carbide and / or alumina particles accounting for 10-12% of the mass fraction of the melt, stir the molten metal at a speed of 500-800rpm...

Embodiment 3

[0065] A buffer column for roads, the buffer column is cylindrical, the core of the buffer column is a particle-reinforced foamed aluminum-based composite material, the core is wrapped with an elastic material layer, and the elastic material layer is a titanium alloy cylinder, which is characterized in that:

[0066] The particle-reinforced foamed aluminum-based composite material is prepared by the following preparation method:

[0067] Prepare an aluminum alloy ingot, its composition percentage is: Cr 3.5%, Ni 1.5%, Mo 0.75%, Mg 0.15%, Zn 0.15%, Fe 0.075%, Ce 0.035%, Nb 0.015%, and the balance is Al;

[0068] Melt the above-mentioned aluminum alloy and raise the temperature to 700°C-760°C, pass through protective Ar gas to refine and keep it warm for 10 minutes;

[0069] Add thickener accounting for 6-7% of the total weight of the melt and add silicon carbide and / or alumina particles accounting for 10-12% of the mass fraction of the melt, stir the molten metal at a speed of ...

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