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Vibration-proof Material, Vibration-proof Structure, And Vibration-proof Method

A technology of anti-vibration materials and rubber compositions, applied to springs made of plastic materials, vibration suppression adjustment, non-rotational vibration suppression, etc., can solve problems such as errors and defects, and achieve reduced corrosion and excellent vibration resistance Effect

Inactive Publication Date: 2014-09-24
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For example, in a hard disk drive (HDD) mounted in electrical and electronic equipment such as a personal computer, if vibration or shock is applied during writing or reading, errors or malfunctions due to noise will occur

Method used

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  • Vibration-proof Material, Vibration-proof Structure, And Vibration-proof Method
  • Vibration-proof Material, Vibration-proof Structure, And Vibration-proof Method
  • Vibration-proof Material, Vibration-proof Structure, And Vibration-proof Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7 and comparative example 1～3

[0119] (1) Manufacture of anti-vibration materials

[0120] According to the compounding amount recorded in the compounding recipe shown in Table 1, polymers, processing aids, pigments, flame retardants, fillers and softeners were compounded and kneaded with a 3L pressurized kneader to prepare a primary mixture.

[0121] Separately mix the crosslinking agent, crosslinking auxiliary agent, foaming agent and foaming auxiliary agent (in the case of comparative examples 1 to 3, vulcanization retarder), mix it with the primary mixture, and mix it with a 10-inch mixing roller. kneading to make a rubber composition (secondary mixture) (kneading process).

[0122] Next, the rubber composition was extruded into a sheet with a thickness of about 8 mm using a single-screw extrusion molding machine (45 mmφ) to produce a rubber composition sheet (forming step).

[0123] Then, the rubber composition sheet was preheated at 140° C. for 20 minutes in a hot air circulation oven. After that, t...

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Abstract

A vibration-proof material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The content ratio of a sulfur atom calculated based on the measurement result of a fluorescent X-ray measurement, based on mass, is 1000 ppm or less and the vibration-proof material has a Young's modulus at 23° C. of 6.0×105 Pa or less.

Description

technical field [0001] The present invention relates to a vibration-proof material, a vibration-proof structure, and a vibration-proof method. Specifically, it relates to a vibration-proof material, a vibration-proof structure provided with the vibration-proof material, and a vibration-proof method using the vibration-proof material. Background technique [0002] Conventionally, anti-vibration materials for reducing vibration of vibrating objects have been used in various industrial products. [0003] For example, in hard disk drives (HDDs) installed in electrical and electronic equipment such as personal computers, if vibration or shock is applied during writing or reading, errors or malfunctions due to noise will occur. Therefore, an anti-vibration material is arranged between the main body of the HDD and the wiring circuit board for processing writing or reading thereof. [0004] Further, as the anti-vibration material, a foam obtained by foaming ethylene-propylene-diene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L71/08C08K13/02C08K5/09C08K3/04C08K3/22C08K3/26C08K5/33C08K5/14C08J9/10
CPCC08J2471/02C08J2323/16C08J9/0023H05K3/00C08J9/0028F16F15/00C08J2201/026F16F1/3605H05K1/0271C08J2201/03H05K2201/20F16F15/08F16F1/36C08J9/0061H05K2201/2045C08J9/103C08L23/16C08L2205/03C08L2203/14C08L2203/20C08L91/06C08L71/02C08K13/02C08K5/09C08K3/04C08K2003/2224C08K2003/265C08K5/14C08L23/06H05K1/0353H05K2201/0116H05K2201/0133Y10T29/49124
Inventor 岩濑崇行平井文太松田荣司
Owner NITTO DENKO CORP
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