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Various cohesiveness magnetic pad composition and making method thereof

A technology of bonding performance and vibration damping plate, which is applied in the direction of magnetic objects, magnetic materials, building structures, etc., can solve the problems of low vibration damping effect, low transmission loss of indoor noise isolation ability, etc., so as to improve vibration damping. performance, saving the cost of binder raw materials, and reducing costs

Inactive Publication Date: 2004-06-02
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it shows low effect in terms of vibration damping, and the transmission loss of indoor noise insulation ability is low. In order to improve the NVH of automobiles, it is necessary to develop products with better vibration damping performance.

Method used

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  • Various cohesiveness magnetic pad composition and making method thereof
  • Various cohesiveness magnetic pad composition and making method thereof
  • Various cohesiveness magnetic pad composition and making method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] Manufacture the magnetic damping plate with the composition and content shown in Table 1, extrude it into a certain 2mm thick sheet, and press it to form a pattern. Then it is cooled by a cooling machine, magnetized by a magnetizer, and hot-melt adhesive is coated on the pattern, or it is not coated. Cut it into a size of 200×20mm with a press, and measure the damping coefficient. The damping coefficient is measured according to JASOM306-70 at the temperature of 20 and 40 ℃ respectively, and the results are shown in Table 1:

[0025] example

[0026] As mentioned above, the magnetic damping plate composition of the present invention does not require hot melt adhesives as in the past, and is bonded to the metal surface to be adhered by pitch and bonding resin in the magnetic damping plate without applying heat. Melting engineering can achieve the effect of saving binder raw material costs and engineering costs, and due to the improvement of vibration damping,...

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PUM

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Abstract

Provided is a various cohesiveness magnetic pad composition and making method thereof. In particular, the invention relates to a blown asphalt being excellent in adhering functions, waterproof and damping capacity. The magnetic pad composition comprises ferrite magnetic powder, filler of mica, synthetic rubber based on nitrile butadiene rubber, petroleum based adhesive resin, and cellulose fiber. The method for producing the composition reduces adhesive cost and project cost compared to the conventional magnetic pad which needs to be adhered by a hot-melt adhesive when it is used on surface; the method can increase damping capacity with little magnetic pad composition and reduces the sound insulation performance for a vehicle,makes the vehicle light weighted and reduces the cost.

Description

Background technique [0001] The present invention is a magnetic vibration damping plate composition with multiple bonding properties and its manufacturing method, more specifically, it relates to adding magnetic ferrite endowed with magnetism to oxidized asphalt with excellent bonding, waterproof and vibration damping properties. Powder, filler, mica powder, nitrile rubber-based synthetic rubber, petroleum-based adhesive resin and cellulose fiber, can exert a variety of adhesive properties with different adhesive properties in different applicable positions, and in extrusion During the pressing process, it is no longer necessary to apply the hot-melt adhesive coating project on the magnetic asphalt-based vibration-absorbing material belt in the past, so as to achieve the effect of saving the cost of adhesive raw materials and engineering costs; improve the vibration-damping performance to achieve A small amount of products can fully exert the vibration damping effect and the n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K3/08C08K3/34C09D195/00H01F1/117
CPCC08K3/08C08K3/34C08L1/02C08L9/02C08L95/00C08L2205/16C09D195/00H01F1/117
Inventor 金振洙高浩锡
Owner HYUNDAI MOTOR CO LTD
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