A kind of anti-fatigue rivet and its manufacturing method

A fatigue-resistant, rivet technology, applied in rivets and other directions, can solve the problems of low safety factor of rivet connection, achieve the effect of improving hearing comfort, reducing vibration noise, and reducing fatigue loss

Active Publication Date: 2021-01-01
BEIJING AUTOMOTIVE IND CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As an important connection method, rivet connection has received widespread attention and is widely used, but the safety factor of rivet connection is generally lower than other connection methods.

Method used

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  • A kind of anti-fatigue rivet and its manufacturing method
  • A kind of anti-fatigue rivet and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] S1a: Prepare graphene dispersion: add 10 g of graphene powder into 1 L of absolute ethanol, and obtain a graphene dispersion with a concentration of 1.0% by ultrasonic dispersion;

[0042]S1b: Preparation of composite powder: 1990g of copper metal powder was added to the graphene dispersion, then mixed and ball-milled for 8 hours under the protection of argon, the ball milling speed was 800rpm / min, and then vacuum-dried to obtain a composite powder, graphene accounted for the 0.5% by weight of the total weight of the composite powder, the purity of the copper powder is ≥99.9% by weight, the mesh number is 500 mesh, and the particle size is 25 μm; the obtained composite powder is prepared by an ion sintering method to obtain a copper-graphene prefabricated ingot;

[0043] S2: Preparation of alloy ingots: Weigh raw materials by weight percentage, relative to 100 parts by weight of vibration-damping alloy, weigh 50 parts by weight of iron, 30 parts by weight of aluminum, 13...

Embodiment 2

[0046] S1a: preparation of graphene dispersion: add 10 g of graphene powder into 1.5 L of absolute ethanol, and obtain a graphene dispersion with a concentration of 0.67% by ultrasonic dispersion;

[0047] S1b: Preparation of composite powder: 2490g of aluminum metal powder was added to the graphene dispersion, then mixed and ball-milled for 8 hours under the protection of argon, the ball milling speed was 800rpm / min, and then vacuum-dried to obtain a composite powder, graphene accounted for the 0.4% by weight of the total weight of the composite powder, the purity of the aluminum powder is ≥99.9% by weight, the mesh number is 600 mesh, and the particle size is 21 μm; the obtained composite powder is prepared by an ion sintering method to obtain an aluminum-graphene prefabricated ingot;

[0048] S2: Preparation of alloy ingot: Weigh raw materials by weight percentage, relative to 100 parts by weight of vibration-damping alloy, weigh 45 parts by weight of iron, 30 parts by weigh...

Embodiment 3

[0051] S1a: Prepare graphene dispersion: add 12g of graphene powder into 4.0L of absolute ethanol, and obtain a graphene dispersion with a concentration of 0.3% by ultrasonic dispersion;

[0052] S1b: Preparation of composite powder: 2488g of aluminum metal powder was added to the graphene dispersion, then mixed and ball-milled for 8 hours under the protection of argon, the ball milling speed was 800rpm / min, and then vacuum-dried to obtain a composite powder, graphene accounted for the 0.48% by weight of the total weight of the composite powder, the purity of the aluminum powder is ≥99.9% by weight, the mesh number is 500 mesh, and the particle size is 25 μm; the obtained composite powder is prepared by an ion sintering method to obtain an aluminum-graphene prefabricated ingot;

[0053] S2: Preparation of alloy ingot: Weigh raw materials by weight percentage, relative to 100 parts by weight of vibration-damping alloy, weigh 42 parts by weight of iron, 33 parts by weight of alum...

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Abstract

The present disclosure relates to a fatigue-resistant rivet. The fatigue-resistant rivet contains a vibration-damping alloy, and the vibration-damping alloy contains iron, aluminum, manganese, copper, and graphene; relative to 100 parts by weight of the vibration-damping alloy, iron The content is 35-65 parts by weight, the content of aluminum is 15-35 parts by weight, the content of manganese is 10-25 parts by weight, the content of copper is 4-12 parts by weight, and the content of graphene is 0.005-0.5 parts by weight. The fatigue-resistant rivet of the present disclosure can convert vibration energy into heat energy, reduce fatigue loss, thereby improving the fatigue resistance strength of components, reduce vibration noise, improve hearing comfort, and improve the safety factor of the rivet connection method.

Description

technical field [0001] The present disclosure relates to the field of material connection, in particular to a fatigue-resistant rivet and a manufacturing method thereof. Background technique [0002] With the development of the automobile industry, the current traditional steel-based automobile materials are developing towards the trend of mixed application of steel and aluminum, all-aluminum body, plastic composite material and magnesium alloy. The mixed application of multi-materials brings various requirements for new material connection technology, and various connection methods such as riveting, bonding and composite connection have developed rapidly in the automotive industry. [0003] As an important connection method, rivet connection has been widely concerned and widely used, but the safety factor of rivet connection method is generally lower than other connection methods. Contents of the invention [0004] The present disclosure provides a fatigue-resistant rive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/06C22C38/04C22C38/16C22C30/02C22C33/04C22C1/10F16B19/04
CPCC22C38/06C22C38/04C22C38/16C22C30/02C22C33/04C22C1/1036F16B19/04C22C1/1015C22C1/1047
Inventor 马治国王智文栗娜尚红波
Owner BEIJING AUTOMOTIVE IND CORP
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