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Vibration damping rubber and motor fixing mount

A technology of anti-vibration rubber and engine, which is applied in the direction of non-rotational vibration suppression, etc., can solve the problems of weak strength and degassing of silicone rubber, and achieve the effects of improved thermal conductivity, material strength and anti-vibration performance, and good mixing performance

Inactive Publication Date: 2009-01-14
NOK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, silicone rubber is weak and has problems in stably supporting the engine for a long time
In addition, in the case of using other synthetic rubbers, there is a problem of outgassing (out gas) in the case of polymers containing chlorine, etc.

Method used

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  • Vibration damping rubber and motor fixing mount
  • Vibration damping rubber and motor fixing mount
  • Vibration damping rubber and motor fixing mount

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072]

[0073] Polymer: NBR rubber

[0074] (Nipol DN3350 manufactured by Nippon Zeon Company;

[0075] Combined AN amount 33%, ML central value 50) 100 parts by weight

[0076] Reinforcing agent: Precipitated silica (Nipsil VN3 manufactured by Tosoh-Sirica Industry Co., Ltd.)

[0077] 14 parts by weight

[0078] : Graphite (particle size 5μm)

[0079] (GRAPHITE A-0 manufactured by Nidec Ibbon Co., Ltd.) 35 parts by weight

[0080] : Graphite (particle size 10μm)

[0081] (GRAPHITE G-6S produced by Chuetsu Black Lead Industry Co., Ltd.) 35 parts by weight

[0082] : Acetylene carbon black (DENKA BLACK granule manufactured by Denki Kagaku Kogyo Co., Ltd.)

[0083] 35 parts by weight

[0084] Vulcanization accelerator: Zinc oxide (1 type of zinc oxide manufactured by SAKAI CHEMICAL INDUSTRY Co., Ltd.) 5 parts by weight

[0085] : Stearic acid (TST stearic acid manufactured by Miy...

Embodiment 2

[0120] A rubber sample was prepared in the same manner as in Example 1 except that the graphite in Example 1 was changed from A-0 and G-6S to only 70 parts by weight of G-6S, and an evaluation test was performed.

Embodiment 3

[0122]Change the graphite of embodiment 1 into the G-6S that only adds 70 parts by weight with A-0 and G-6S, and add the acetylene carbon black of 65 parts by weight, and make the rubber sample in the same way as embodiment 1 , to carry out the evaluation test.

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Abstract

The invention provides a vibration-damping rubber and a motor-fixing mount, which exhibit good processability, and exhibit improved heat dissipation properties (thermal conductivity) while maintaining a low compression permanent deformation even at high temperatures, by blending specific amounts of acetylene black and graphite into NBR rubber. A vibration-damping rubber is characterized by comprising a NBR composition containing 10 to 120 parts by weight of graphite, 10 to 80 parts by weight of acetylene black and 100 parts by weight of NBR rubber. The NBR composition preferably has a hardness of 75 or less as measured according to JIS K6253 (using a durometer A), having a compression permanent deformation of 36% or less as measured after an aging and heat resistance test at 100 DEG C for 70 hours according to JIS R6262 (using a large test piece), having a tan delta (10 Hz) of 0.3 or more, and also having heat dissipation properties such that the measured value of a thermal conductivity test is 60 DEG C or more. And a motor-fixing mount preferably is composed of the vibration-damping rubber interposed between plates.

Description

technical field [0001] The present invention relates to a vibration-proof rubber and a mount for fixing an engine. Specifically, it relates to a vibration-proof rubber and an engine fixing that have good processability and can improve heat dissipation (thermal conductivity) while maintaining compression set even at high temperatures. Use standoffs. Background technique [0002] In order to suppress the vibration and noise generated by the engine of OA equipment, etc., an engine fixing mount, in which vibration-proof rubber is sandwiched between plates, is generally used between the engine and a supporting member that supports the engine. [0003] Conventionally, it has been proposed to use a material with good thermal conductivity for anti-vibration rubber for the purpose of releasing heat generated when the engine is driven (Patent Documents 1 and 2). [0004] In Patent Documents 1 and 2, silicone rubber, other synthetic rubber, etc. are used as the rubber material. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08K3/04F16F15/08
Inventor 三好雄次
Owner NOK CORP
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