Alloy material, lightweight brake drum with alloy material applied, and lightweight brake drum preparation method

An alloy material, lightweight technology, used in brake drums, manufacturing tools, heat treatment equipment, etc., can solve problems such as single improvement point, inability to improve performance in all directions, cracking, etc., to improve safety and increase braking stability. , the effect of long life

Inactive Publication Date: 2019-02-22
天宜上佳(天津)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Prior art CN107974635A discloses a hot-rolled alloy steel plate for anti-fatigue and high wear-resistant brake drum and its production method. The alloy steel plate includes C 0.32-0.42%, Si 0.20-0.35%, Mn 0.45-0.70%, C1 .00~1.15%, P≤0.015%, S≤0.006%, Mo 0.25~0.35%, Ni 0.10~0.20%, V 0.10~0.15%, Ti≤0.015%, the rest is Fe and unavoidable impurities, thus The lightweight

Method used

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  • Alloy material, lightweight brake drum with alloy material applied, and lightweight brake drum preparation method
  • Alloy material, lightweight brake drum with alloy material applied, and lightweight brake drum preparation method
  • Alloy material, lightweight brake drum with alloy material applied, and lightweight brake drum preparation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1

[0038] The lightweight brake drum structure is as figure 1 , figure 2 As shown, it includes a friction body 1 and a base 2. The friction body 1 is evenly provided with 16 groups of venting and chip removal holes 3 arranged uniformly along the central axis of the lightweight brake drum, and the number of ventilation chip removal holes 3 in each group is There are 5, and the diameter of each venting chip hole is 20mm.

[0039] The diameter of the lightweight brake drum in this embodiment is 400 mm, and the wall thickness of the friction body is 15.5 mm.

[0040] The preparation method of the lightweight brake drum in this embodiment includes the following steps:

[0041] (1) Using ANSYS structural optimization and strength checking, design the core box and cavity model of the lightweight brake drum;

[0042] (2) Put the commonly used raw materials for alloy smelting into the electric furnace for smelting, and use a spectrometer to perform rapid analysis and detection...

Example Embodiment

[0049] Example 2

[0050] This embodiment provides a lightweight brake drum. The structure of the lightweight brake drum is as described in Embodiment 1, wherein there are 8 groups of ventilation and chip removal holes, and the number of ventilation and chip removal holes 3 in each group is 6. , The diameter of the ventilation chip hole 3 is 16mm.

[0051] The diameter of the lightweight brake drum in this embodiment is 240 mm, and the wall thickness of the friction body is 10.4 mm.

[0052] (1) Using ANSYS structural optimization and strength checking, design the core box and cavity model of the lightweight brake drum;

[0053] (2) Put the commonly used raw materials for alloy smelting into the electric furnace for smelting, and use a spectrometer to perform rapid analysis and detection before the furnace to adjust the feeding, until the element composition of the melt is: C 0.24wt%; Si 0.48wt%; Mn 1.09wt%; S0.006wt%; P 0.007wt%; Ni 1.08wt%; Cr 0.88wt%; Mo 0.52wt%; Al 0.018wt%; the ...

Example Embodiment

[0060] Example 3

[0061] This embodiment provides a lightweight brake drum. The structure of the lightweight brake drum is as described in Embodiment 1, wherein there are 12 groups of ventilation and chip removal holes 3, and the number of ventilation and chip removal holes 3 in each group is 5, each venting chip hole diameter is 10mm.

[0062] The diameter of the lightweight brake drum in this embodiment is 200 mm, and the wall thickness of the friction body is 9.8 mm.

[0063] The preparation method of the lightweight brake drum in this embodiment includes the following steps:

[0064] (1) Using ANSYS structural optimization and strength checking, design the core box and cavity model of the lightweight brake drum;

[0065] (2) Put the common raw materials for alloy smelting into the electric furnace for smelting, and use a spectrometer to perform rapid analysis and detection before the furnace to adjust the feeding, until the element composition of the melt is: C 0.25wt%; Si 0.5wt%;...

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Abstract

The invention relates to the technical field of brake materials, in particular to an alloy material, a lightweight brake drum with the alloy material applied, and a lightweight brake drum preparationmethod. The alloy material is prepared from, by weight, C: 0.23-0.28%, Si: 0.45-0.55%, Mn: 1.05-1.10%, S: no greater than 0.007%, P: no greater than 0.008%, Ni: 1.05-1.20%, Cr: 0.8-0.95%, Mo: 0.5-0.62%, Al: no greater than 0.04%, and the balance Fe. The alloy material has better mechanical properties and thermal fatigue resistance. The annealing and quenching and tempering processes are added in the casting process of the lightweight brake drum, so that the mechanical property of the lightweight brake drum is enhanced. In addition, the wall thickness can be thinned and the structure of the lightweight brake drum can be optimized so as to enhance the braking stability of the lightweight brake drum and increase the driving safety performance.

Description

Technical field [0001] The invention relates to the technical field of lightweight brake drums for vehicles, in particular to the preparation of an alloy material, a lightweight brake drum using the alloy material, and the lightweight brake drum. Background technique [0002] Drum brake is a commonly used brake product, which can protect driving safety. Drum brakes are also called block brakes. They are braked by pressing the brake pads on the brake wheels. The mainstream of drum brakes is the internal expansion type. Its brake pads (brake shoes) are located on the inner side of the brake wheel. When braking, the brake pads expand outward and rub the inner side of the brake wheel to achieve the purpose of braking. Drum brakes have a good self-brake effect. For heavy vehicles, because the speed is not high, the durability of the brake shoes is higher than that of disc brakes, so many heavy vehicles still use four-wheel drum design. [0003] The braking efficiency and heat dissipat...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/44C22C38/06C21D9/00C21D1/18C21D1/26F16D65/10
CPCC22C38/02C21D1/18C21D1/26C21D9/0068C22C38/04C22C38/06C22C38/44F16D65/10
Inventor 吴佩芳释加才让崔新亮党一纵范叶明王灿解小花
Owner 天宜上佳(天津)新材料有限公司
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