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Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P. 76150 Tel. (442) 214-4767 CENTRO NACIONAL DE ASISITENCIA.

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Presentation on theme: "Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P. 76150 Tel. (442) 214-4767 CENTRO NACIONAL DE ASISITENCIA."— Presentation transcript:

1 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) CENTRO NACIONAL DE ASISITENCIA TÉCNICA EN ELEMENTO FINITO, S.C.

2 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Reduction cost of magnetic material in refrigerator seals M.C Humberto Peredo

3 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) INDEX Introduction Antecedents Fundamentals Actual Process of Barium Ferrite Improvement to actual process Expected savings (Barium Ferrite) Implementation propose Benefits Conclusions Appendices

4 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Introduction Opportunity in refrigerators: improvement of the magnetic force reducing the material cost

5 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Introduction(cont.) Mexico is one of the principal raw magnetic material producer of BaCO 3 & SrCO 3 (Nuevo León y Coahuila)

6 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Antecedents The magnetic Materials are relevant in many appliances (electric motors, microwave ovens, refrigerators, washers), automotive & aeronautic industry

7 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Antecedents (cont.)

8 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Antecedents(cont.) However the cost to produce strong field magnetic is too expensive (Sm o Nd) Prices in Euros

9 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Antecedents(cont.) Barium ferrite magnets are cheap, but the magnetic field is relatively weak. Prices in Euros

10 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Fundaments The origin of magnetism is due the electron spin B = μ(H + M) B = Magnetic Induction T Gauss H = Magnetic Field Am 2 Oe M = Magnetic Saturation Am 2 emu/cm 3 = Material Permeability Henry/ m. *M o J = Intensity magnetization

11 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) The barium Ferrite has five sub lattices (12k,4f1,4f2,2a,2b ), and will contribute in the magnetic saturation according the next formula : Fundamentos (cont.)

12 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Actual Process Barium Ferrite Nowadays the Barium Ferrite is obtained by: 1.Ceramic 2.Co precipitation 3.SOL-GEL The highest Magnetic Saturation is about T [Stäblein] Transforming process Barium Ferrite Raw Material

13 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Improvement in Actual process Barium Ferrite Doing some changes to the actual barium ferrite process higher fields can be achieved (temperature, chemistry formula ) 0.69 T instead of T Transforming process Barium Ferrite Raw Material B = μ(H (size grain) + M (ion substitution) )

14 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Saving expected Seal Material Cost 10 x 1,5 x 1000 mm = 0.49 A typical refrigerator of 22 ft 3 requires 9 mts of Seal Total Cost per unit = 4.41

15 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Implementation proposal Patent PYME CONACYT Implementation through actual production material supplier Registration patent Right properties Agreement Plant Implementation Economical agreement

16 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Benefits Reduction of material costs. Energy savings for the consumer Reduction of seal material cost Patent State of the art technology

17 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Conclusions According the results the magnetization saturation will increase by 47 %

18 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Appendices

19 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Characterization results XRD

20 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Characterization results Mössbauer Spectroscopy

21 Av. Del Retablo No. 118-B Col. La Era Querétaro, Qro. C.P Tel. (442) Characterization results VSM


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