Keywords
kalsiy stearat
natriy stearat
po‘lat sim
quruq cho‘zish
tovar sifati
termik barqarorlik
adgeziya
mahalliy xom ashyo
import o‘rnini bosish.
How to Cite
Abstract
Maqolada xo‘jalik sovunidan olingan natriy va kalsiy stearatlari hamda mahalliy mineral xom ashyolar (talk, kaolin, bura, natriy sulfat, temir(III) oksidi, kaliy ftorid) asosida po‘lat simlarni quruq usulda cho‘zish uchun quruq surkov kompozitini olish texnologiyasi va uning tovar sifati ko‘rsatkichlarini kompleks baholash natijalari keltirilgan. Mineral to‘ldiruvchilarni oldindan 300 mkm dan kichik dispersligacha maydalab qizdirish va kalsiy stearatni reaktorga bosqichma-bosqich kiritishga asoslangan takomillashtirilgan usul taklif etildi. FTIR, DTA/TG, XRD va SEM–EDS tahlillari hamda standart tovarshunoslik usullari qo‘llanildi. Taklif etilgan kompozit 170, 200 va 240 °C da mos ravishda 3, 12 va 40 % suyuqlanadi, import (Rossiya, Xitoy) namunalari esa 240 °C da to‘liq (100 %) suyuqlanadi. Sanoat sinovida kompozitning sim yuzasiga adgeziyasi import analoglariga nisbatan 12 % yuqori, tannarxi esa 45 % past ekanligi qayd etildi.References
1. Wright R.N. Wire Technology: Process Engineering and Metallurgy. 2nd ed. – Oxford: Elsevier, 2016.
2. Колмогоров В.Л., Орлов С.И., Селищев К.П. Волочение в режиме жидкостного трения. – М.: Металлургия, 1967. – 201 с.
3. Lazzarotto L., Dubar L., Dubois A., Ravassard P., Oudin J. Identification of Coulomb’s friction coefficient in real contact conditions applied to a wire drawing process // Wear. – 1997. – Vol. 211, No. 1. – P. 54–63.
4. Hafis S.M., Ridzuan M.J.M., Rahayu A., Mohamed, Farahana R.N., Syahrullail S. Minimum quantity lubrication in cold work drawing process: effects on forming load and surface roughness // Procedia Engineering. – 2013. – Vol. 68. – P. 639–646.
5. Dubois A., Lazzarotto L., Dubar L., Oudin J. A multi-step lubricant evaluation strategy for wire drawing–extrusion–cold heading sequence // Wear. – 2001. – Vol. 249, No. 10–11. – P. 951–961.
6. O‘zbekiston Respublikasi Prezidentining 2022-yil 28-yanvardagi PF-60-son Farmoni bilan tasdiqlangan «2022–2026-yillarga mo‘ljallangan Yangi O‘zbekistonning taraqqiyot strategiyasi».
7. Saied E.K., Elzeiny N.I., Elmetwally H.T., Abd-Eltwab A.A. An experimental study of lubricant effect on wire drawing process // International Journal of Advanced Science and Technology. – 2020. – Vol. 29. – P. 560–568.
8. Saadi M.D. Al-Nuza. Preparation of dry solid lubricant for drawing of welding steel wires from local Iraqi material // Al-Mustansiriyah Journal of Science. – 2009. – Vol. 20, No. 5. – P. 5–32.
9. Патент RU 2188226 C1, МПК C10M 125/00. Смазка для сухого волочения / Скворцова Л.Б., Чумаевский В.А., Клепикова Л.П. – Опубл. 27.08.2002.
10. Патент RU 2032711 C1. Смазка для сухого волочения проволоки / Спицына Г.А., Смирнов С.А., Гусева Л.М. – Опубл. 1995.
11. Перлин И.Л., Ерманок М.З. Теория волочения. – М.: Металлургия, 1971. – 448 с.
12. «Ifoda Agro Kimyo Himoya» MChJ QK «MEXMASH» zavodining 2025-yil 16-oktyabrdagi 02/10/365-son ma’lumotnomasi.
13. O‘zbekiston Respublikasi Davlat bojxona qo‘mitasining 2025-yil 16-dekabrdagi 29/05-25-2972-son ma’lumotnomasi.