Cement, Glass, Simulation


The Technical Department of TEIDE REFRACTORY SOLUTIONS S.L. has recently been receiving its first results after the implementation of the simulation process.

The case submitted under study, took place into the failure in service of the plates, as we shown as follows:

Breaking Zone

  • These pieces are subjected to a concrete thermal treatment, reaching a temperature of 1200ºC.

  • The customer (B), complains that the piece he is using has a breakage of 15-20% of the total pieces to be changed yearly and it takes a high cost.

  • The simulation of this case is made by modules HEATEIDE and STEIDE, mentioned in other posts: http://goo.gl/bZGN2Q

  • The piece is subjected to Thermo-mechanical analysis using finite elements, once the simulation is done, our analyst proceeds to the analysis of results, and the corresponding verification of the same.

The study focused to analyze the relevance that will have the following physical parameters in the parametric study of Thermo-mechanical material:

  • Young’s Module (E).

  • Porosity.

  • Coefficient of expansion.

  • The influence of various geometries.

Once it has been determined the importance of each parameter, it is introduced as a simulation’s result and we proceed to develop the mechanical calculation coupled with the thermal cycle (STEIDE and HEATEIDE modules’ coupled) with the objective of analyzing the tensions suffered by the material in that process.

After doing the simulate conditions, it is important to check the result through trials done by external laboratories. In this line, were sent to study the sample of the competition and the material proposed by TEIDE REFRACTORY SOLUTIONS S.L.

Following are shown the results obtained in these analysis:

Analyzing the results, if we focus only on the value of module of rupture (MOR) in part B, the experience of our technical department states that the value of 5 MPa MOR indicates that it is a wrong manufactured material.

Once characterized the material, move on to briefly discuss the analysis of the maximum stresses Thermo-mechanical is set out in a table below.

A priori can be observed that the B sample supports higher tensions due to the thermal cycle, and this maximum coincides at the point of the highest temperature, as shown in the following graphic.

Analyzing the previous graph shows that quality proposed by TEIDE REFRACTORY SOLUTIONS S.L, that produces less stress on all the cold to cold curve. It is important to note the lower tension produced in the cooling area which at this time is to a very high temperature on the inside and the fast cooling of the piece causes tensile stresses due to temperature differences, making this forced cooling at a critical point at the level of thermo-mechanical tensions.

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