Carmen LOGHIN, Mariana URSACHE, Irina IONESCU

FERROMANYETİK MİKRO TELLERİN DİKİLEBİLİRLİĞİ ÜZERİNE DENEYSEL ARAŞTIRMA

Bu araştırmada; tekstil yapılarına doğrusal dikim yöntemi ile manyetik özellikleri olan amorf bir mikro-tel takılması üzerine araştırma sonuçları sunulmaktadır. Mikro teller ince cam tabaka ile kaplı FeBiSn alaşımdan imal edilmiştir. Yüksek manyetik geçirgenlikli ve küçük çaplı (20-40 mikron) bu teller, yüksek frekansta emici veya yansıtıcı eleman olarak onlarca GHz aralığı olarak önerilmektedir. Dikim işleminin özel iç mukavemet analizleri, dengesiz kilit dikiş yapısının mikro tellerin düz tekstil yüzeylerindeki emniyetini vurgular. Dikiş kalitesini değerlendirmek için, iki parametre ölçülmüştür: -dikiş yapısında mikro-tel tutunması (Rt, cN) ve - mikro-tel kopma kuvvetinde gerilim değişim indeksi (%)

Anahtar Kelimeler:

Elektromanyetik kaplama, kompozit yapılar, dengesiz düzdikiş

EXPERIMENTAL RESEARCH ON THE SEWABILITY OF FERROMAGNETIC MICRO-WIRES

The paper presents the results of research on the insertion of an amorphous micro-wire with magnetic properties in linear textile structures by sewing. The micro-wires have been produced of FeBiSn alloy coated with thin glass layer. The high magnetic permeability and the small diameter (20-40 µm) recommend these wires as absorbent or reflecting element on high frequency, tens GHz range. The analyses of the stresses specific to the sewing process emphasize the utility of the unbalanced lock-stitch structure for anchor the micro-wires on the surface of plain textiles. To evaluate the seam quality, two parameters were measured: the micro-wire retention in the stitch structure (Rt, cN), and the micro-wire tensile breaking strength changing index (%)

Keywords:

Electromagnetic shielding, composite structure, unbalanced lockstitchltrasonic,

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