Quality grading of cork stoppers based on porosity, density and elasticity.

Gonzalez Adrados, Jose Ramon and González-Hernández, F. and García de Ceca, J. L. and Sánchez-González, M. (2013). Quality grading of cork stoppers based on porosity, density and elasticity.. "European Journal of Wood And Wood Products", v. 77 (n. 2); pp. 149-156. ISSN 0018-3768. https://doi.org/10.1007/s00107-013-0760-x.

Description

Title: Quality grading of cork stoppers based on porosity, density and elasticity.
Author/s:
  • Gonzalez Adrados, Jose Ramon
  • González-Hernández, F.
  • García de Ceca, J. L.
  • Sánchez-González, M.
Item Type: Article
Título de Revista/Publicación: European Journal of Wood And Wood Products
Date: 2013
ISSN: 0018-3768
Volume: 77
Subjects:
Faculty: E.T.S.I. Montes (UPM)
Department: Ingeniería Forestal [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

An objective control method for grading cork stoppers is presented using a cork stopper quality index based on porosity, density and elasticity, these being the properties which have the greatest influence on the closure capacity of the stopper. The elasticity of the cork stopper is measured through the relaxation ratio, which is defined by the relationship between the relaxation force exerted by the cork in the bottleneck and the compressive force exerted by a caliper to fit the stopper in the bottle. The relaxation ratio, defined in this way, represents the part of the compression force which is applied to the stopper on insertion and which is recovered in the form of the relaxation force to achieve closure. The calculation of the relaxation ratio involves the measurement of the relaxation force of the fitted stopper. This force has been measured rigorously and precisely using a device developed in the Cork Laboratory at the INIA-CIFOR and which is presented for the first time in this paper.

More information

Item ID: 26575
DC Identifier: http://oa.upm.es/26575/
OAI Identifier: oai:oa.upm.es:26575
DOI: 10.1007/s00107-013-0760-x
Deposited by: Memoria Investigacion
Deposited on: 18 Jul 2014 06:54
Last Modified: 22 Sep 2014 11:41
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