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Magnetic damping board and preparing method thereof

A magnetic damping and damping plate technology, applied in mechanical equipment, vibration suppression adjustment, building components, etc., can solve problems such as difficult thickness control, and achieve the effect of simple and easy construction method, simple process, and low equipment investment cost

Inactive Publication Date: 2006-06-21
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem is that it is difficult to control the thickness of this viscous damping glue, and the thickness of the composite layer directly affects its damping performance. How to obtain a damping glue with an accurate thickness and a firm bond on the metal skin layer, is the key to the whole problem

Method used

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  • Magnetic damping board and preparing method thereof
  • Magnetic damping board and preparing method thereof
  • Magnetic damping board and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Petroleum pitch (No. 10) 25%

[0035] Recycled rubber powder 3%

[0036] Atactic polypropylene 3%

[0037] Solvent oil (motor oil) 2%

[0038] Magnet Powder 25%

[0039] Filler (talcum powder, asbestos powder, wollastonite powder, mica powder) balance

Embodiment 2

[0041] Petroleum pitch (No. 10) 35%

[0042] Recycled Rubber Powder 8%

[0043] Atactic polypropylene 8%

[0044] Solvent oil (motor oil) 4%

[0045] Magnet Powder 35%

[0046] Filler (talcum powder, asbestos powder, wollastonite powder, mica powder) balance

Embodiment 3

[0048] Petroleum pitch (No. 10) 28%

[0049] Recycled rubber powder 5%

[0050] Atactic polypropylene 6%

[0051] Solvent oil (motor oil) 3%

[0052] Magnet Powder 30%

[0053] Filler (talcum powder, asbestos powder, wollastonite powder, mica powder) balance

[0054] B. Heating and mixing: heat to 180-200°C, melt the petroleum asphalt, and then add rubber powder and random polypropylene under stirring, so that the three raw materials are fully stirred and evenly mixed. When the temperature of the above-mentioned raw materials drops to 100-120 degrees , put in solvent oil, magnet powder, and filler, and stir until the above-mentioned raw materials are mixed evenly, which is damping micelles.

[0055] C. Tablet pressing: Put the prepared damping micelles into a special tablet press and press them into tablets according to the set thickness. One side of the pressed magnetic damping plate is smooth, and the other side has ribbed shallow grooves.

[0056] D. Cutting: Cut the i...

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Abstract

A magnetic damping plate and a preparation method thereof belong to the technical field of composite materials. It is used to solve the prefabrication problem of motor vehicle skin damping adhesive layer. The technical solution is: it is prefabricated from petroleum asphalt, recycled rubber powder, random polypropylene, solvent oil, magnetic powder and fillers. The damping plate is in the shape of a sheet, with a smooth plane on one side and a shallow diamond-shaped groove on the other. groove. The invention overcomes the disadvantages of traditional high-pressure spraying to make the damping glue layer, the thickness of the factory prefabricated damping plate is accurate and controllable, the damping plate and the metal base plate are firmly combined, and the construction method is simple and easy. Tests have shown that the damping rubber layer composed of magnetic damping plates can greatly reduce the vibration and noise generated when the vehicle is moving, and various performance indicators have reached or exceeded the level of the original technology. In addition, the preparation method of the magnetic damping plate is simple in process, low in equipment investment cost, and easy to realize mass production.

Description

technical field [0001] The invention relates to an anti-vibration material and a preparation method, in particular to a damping plate for reducing skin vibration and noise of a motor vehicle and a preparation method thereof, belonging to the technical field of composite materials. Background technique [0002] When the car is moving, vibrations will be caused by the work of the engine and the uneven road surface. The vibration is transmitted to the metal skin of the body through the frame. The metal skin converts this vibration energy into noise, and the noise will make passengers feel very uncomfortable. Comfortable, the situation of large passenger cars is particularly serious. Structurally speaking, the steel plate used in the skin of the car is very thin, about 1mm, and there are many places on the car that need to be skinned. The ratio of the skin area to the thickness of the skin plate is very large. This structure is easy to generate and transmit vibration. . In ord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K3/36C08J5/18F16F15/129
Inventor 张炳烛甄普
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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