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  SILENTLINE®* Laminated Shims  
   


(222 Ko)

 
  OVERVIEW  

Any mechanical assembly in working order generates vibrations that are source of harmful frequencies.

Finding a solution to this critical drawback, Daniel GASTEL designed and patented a new laminated product called SILENTLINE®.

SILENTLINE® Silentline Laminated Shim is a composite of metal and synthetic material, which has the key advantage of spreading the vibrational energy over a dramatically wider band (lower Q factor) - therefore dampening the transmission of potentially destructive harmful frequencies. Product picture here.


  ADVANTAGES  
  1. The cost of SILENTLINE® laminated shims is virtually equivalent to that of shims made of other laminated materials. So there is no economic obstacle to their use.
  2. The mechanical characteristics of laminated shims are improved with this material.
    CETIM tested two probes, both in 2 mn (0.08 inch) thickness :
    1. The first one, of conventional form, entirely consisting of peelable metal leaves: achieved Vickers value = 440 MPA.
    2. The second one manufactured in the new material : achieved Vickers value = 510 MPA.
  3. SILENTLINE® laminated shims which thus require less maintenance being less subject to wear.
  4. Other asset of this product and reasons why it was designed:
    1. It contributes to improvements of the working environment, of benefit to all users.
    2. It makes it easier to achieve the demands of noise abatement legislation

 

  PERFORMANCES  

Tests carried out by CETIM on this new material show its capacity to tone down - in a spectacular way - the two consequences of a harmful frequency emission:

  • Absorption or dampening and dispersion of 45 to 50 % of the amplitude
  • Reduction by 50 to 55 % of the emission duration.

This is therefore a high performance material

Move the mouse over the thumbnail for a larger image of CETIM** diagram --->


  THICKNESSES  
MATERIALS SPECIFIC WEIGHTS THICKNESSES OF LAMINATIONS
0,025 0,05 0,075 0,1
   
STAINLESS STEEL
Z 10CN 18.09 (1.4300, AISI 302)
< 8,2   x x x
Z 6CN 18.10 (1.4301, 304S15, AISI 304) x x x x
Z 2CN 18.10 (1.4311, 304S62, AISI 304L)   x x x
Z 2CND 17.12 (1.4435, 316S13, AISI 316L)   x x x
SOFT STEEL
XC10/QQS698 (1.1121, 040A10, 1010)
< 8,2 x x x x

 

MATERIALS SPECIFIC WEIGHTS THICKNESSES OF LAMINATIONS
.001 .002 .003 .004
   
STAINLESS STEEL
AISI 302 (1.4300, Z 10CN 18.09)
< 8.2   x x x
AISI 304 (1.4301, 304S15, Z 6CN 18.10) x x x x
AISI 304L (1.4311, 304S62, Z 2CN 18.10)   x x x
AISI 316L (1.4435, 316S13, Z 2CND 17.12)   x x x
SOFT STEEL
1010 (XC10/QQS698, 1.1121, 040A10)
< 8,2 x x x x

(MIL-S-22499 international norm)

For more information : tech.support@lamecogroup.com

 

  AS A CONCLUSION  

SILENTLINE® shims can be substitued for any other wedging process:

  • They do not have any cost or use inconvenience
  • They offer several additional services (notably silence and life duration) wich are of paramount importance today.

For more information : tech.support@LamecoGroup.com.

   *SILENTLINE = Trademark registered, Patent N° 9401653
**The various diagrams of test carried out by CETIM can be supplied on request.
 

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Last Update : 2008-11-13 Copyright © 1998-2008, Lameco & Inteline. All rights reserved.