Novel Casting Mold for Obtaining Columnar Crystal Structure in Magnets from Alloys of Type YuNDK(T)
- 12 Downloads
A new mold for melting cast magnets with columnar crystal structure of type YuNDK(T) is developed. The use of a novel refractory material based on ceramic fibers instead of the multicomponent heat-accumulating mix for making the mold has lowered the temperature-and-time parameters of its application and made it possible to fabricate large-size YuNDKBA and YuNDKT5BA magnets with high magnetic properties by the out-of-furnace method.
Key wordsYuNDK(T) permanent magnets columnar crystal structure casting mold out-of-furnace crystallization zone of columnar crystals ceramic fibers magnetic properties
- 1.A. M. Blanter, B. G. Korolev, O. N. Kulikov, V. P. Bitsaev, A. A. Ivanov, and V. D. Vinokurov, Molding Box, Inv. Certif. 1396379 USSR, Class B 22621_00 [in Russian], publ. 16.10.1986, intr. 15.01.1988.Google Scholar
- 2.Yu. M. Pyatina (ed.) Permanent Magnets. A Reference Book [in Russian], Energiya, Moscow (1971), 252 p.Google Scholar
- 3.V. V. Sergeev and T. I. Bulygina, Hard Magnetic Materials [in Russian], Énergiya, Moscow (1980), 163 p.Google Scholar
- 4.I. N. Byryakov, A. G. Dormidontov, S. S. Drozdov, O. N. Kulikov, A. S. Lileev, B. G. Razumeiko, V. I. Rakov, and V. A. Sein, “Combined casting mold for forming columnar structure in articles from hard magnetic materials of type Al – Ni – Co – Ti – Fe, RF Patent 2635983 (21.07.2016),” Byull. Izobr. Polezn. Modeli, No. 32 (2017).Google Scholar