Vibration damping material with constraining layer RISHO KOGYO CO., LTD. Vibration damping material with constraining layer / Industrial plastic

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Vibration damping material with Aluminum constraining layer

Light weight & Thin

Excellent property both in Vibration damping and Sound insulation

ricocalm

▲RICOCALM

From top to bottom,Release paper,Vibration damping resin layer and Aluminum plate seen from opposite side of damping resin layer

Properties

Excellent in Vibration damping property. η=0.41 (JIS G 0602/Cantilever/ RT=20℃/500Hz)
Excellent in Sound insulation property. TL=64dB (ASTEM E2611/RT=20℃/500Hz)
40% lighter than vibration damping material with steel constraining layer
Excellent in flame retardant proprty

About vibration damping material

Vibration damping material reduces vibration with converting vibration energy to thermal energy. Noise accompanying with vibration is also reduced.Such materials with viscoelasticity as Rubber or Resin are used as damping layer.Vibration damping material is generally installed as being directly attached to such vibrating surfaces as walls,floors or beams.

Structure

composition

RICOCALM has constraining layer of aluminum plate. Damping resin layer has multi layer construction and is designed to have optimal glass transition temperature to convert vibration energy to thermal energy efficiently.

Vibration damping property

damping

Generally ,material with loss factor of over 0.1 is recognized as excellent damping material. As a test result, RICOCALM showed 0.41 at 500Hz which many other damping material target.

Sound insulation propery

The above graph shows that sound was 10 times reduced as figures on Y-axis increase 20dB as follows.

　　　10bB → 1/10 , 20dB → 1/100 , 60 → 1/1000

RICOCALM has sound insulation property which can reduce sound of 500Hz to one thousandth.

Improvement of vibration damping property with multi layer construction

Damping layer of RICOCALM has multi layer construction. With this unique construction,each layer can share to convert vibration energy to thermal energy efficiently.

Weight saving

Item	RICOCALM	Other's
Constrainting layer	Aluminum plate	Steel plate
Mass (300×500mm)	0.6kg	1.0kg

Constraining layer of RICOCALM is Aluminum plate. Multi damping layer of RICOCALM has so excellent in vibration damping property that it can be designed 40% lighter than other ones with steel constrainer to get the same damping effect.

Standard specifications

Standard dimension (mm)　※	500 × 300
Thickness （mm）	2	Aluminum constrainer：1.0
		Damping resin layer：1.0
Mass （kg/㎡）	3.8
Adhesibility （N/20mm）	18.27

※Customized size is also negotiable