Muhandislik muammolarini engib o'tish uchun yuqori haroratda yuqori haroratni tayyorlash texnologiyasi qanday?
Materiallar bo'yicha yuqori harorat dvigatellarining yuqori haroratli aylanadigan qismlarining yuqori haroratli qotishmalari, flane-rentabelli Sitaniya qotishmalari, flanal qotishmalari, plyonkovlar va texnik qiyinchiliklar, texnik qiyinchiliklarga o'tishning asosiy vazifasini hisobga olgan holda, texnik qiyinchiliklar . kompozitsion materiallar laboratoriya tadqiqotlaridan iborat. Moddiy dizayni, tayyorlash texnologiyasi va ishlashni optimallashtirish va asosiy nazoratni kuchaytirish va ishlab chiqarishni boshqarish texnologiyasi {{}} {}}
1. Breakthrough in high-purity ingot melting process. In response to the ingot preparation problems of high-alloyed materials such as TA29, TB12 and TiAl alloys, my country has formed a multi-dimensional process solution: Vacuum consumable melting optimization: By increasing the number of melting times (3-4 times), accurately controlling the melting current (±5% accuracy), increasing the current gradient and the water cooling intensity of the crucible, the ingot component segregation rate is reduced to below 0.8%; Plasma cold hearth technology upgrade: Plasma cold hearth melting (PCHM) is used in the preparation of TiAl alloys. Through 1600℃ high-temperature refining and electromagnetic stirring, high-density inclusions (size ≤50μm) are significantly removed, and the oxygen content is stably controlled within 800ppm. At present, my country has built 8 industrial PCHM equipment, with a single melting capacity exceeding 1.2 tons, providing high-purity billets for engine rotating parts. 2. Precision forging technology for large-size bars. To meet the needs of large components such as integral blade disks and blade rings, the focus is on breakthroughs in the control of uniformity of large-size bar organization: High-temperature extrusion blanking process: In view of the poor plasticity of TB12 and TiAl alloy ingots, the β phase region (1000-1100℃) multi-directional extrusion technology is adopted to achieve a deformation of more than 70%, and the grain size is refined from 500μm in the cast state to 50μm; Multi-directional die forging: Four-fire variable temperature forging is implemented on a 36,000-ton hydraulic press. Through gradient deformation in the α+β two-phase region (deformation rate 0.01-0.1s⁻¹), the streamline integrity of the forging is >95% va partiyaning ishlashi dispressi bilan 450% . 650 darajadan keyin belgilangan tartibda kamayadi: yuqori haroratli qo'zg'alishning aniq nazorati texnologiyasi: yuqori darajadagi terilarni boshqarishning aniq nazorati. morfologiya: Ikki bosqichli issiqlik bilan ishlash ({+ 750}}}}} ümm} mkm dan 1 mkm ga teng), bu esa 0.2-0.5}}}}}}} dan kammi, bu Ti60 qotishmalari (DKTHT qiymati 8MPA dan keyin charchoqning o'sishiga chidamlidir); Texture homogenization design: Electron backscattered diffraction (EBSD) is used to monitor the evolution of forging texture in real time, and the forging path is optimized through the dynamic recrystallization model, so as to reduce the texture strength index of TiAl alloy ( -TiAl) from 7.3 to 2.1, and the anisotropy elimination rate reaches 80% {{. 4. Yuzaki komponentsiyani, innovatsion o'zgarishlar, innovatsion ishlov berish, 22}} 2mm.....} chuqurlikdagi krujkalarni qayta ishlash uchun ishlatiladi Sial qotishmasi 3 baravar ko'p; Ko'p fizika sohasi qoldiq stressni baholash: X-darajali qoldiq stress texnologiyasi, uch o'lchovli qoldiq stress ma'lumotlar bazasi, issiq izostatsion stress ma'lumotlar bazasi (920 diplom / 100mpa / 2h / soat) Mamlakatimdagi muayyan dvigatelning yuqori bosimli digasi - bu juda yaxshi qotishmadan qilingan. Yuqoridagi jarayon tizimini optimallashtirishdan so'ng: 650 darajadagi tirish kuchi 750 mln. AQShdan 35 foiz engilroq bo'lgan, bu an'anaviy nikel asoslariga ko'ra 35 foiz engilroq; Kam tsikli charchoqning hayoti (r =0.1 TARTIBI 15, {{46} Tavrotlari; Paket ishlab chiqarishning malakasi darajasi 62% dan 88% gacha o'sdi va bitta qismning ishlab chiqarish qiymati 27 foizga kamaydi. Ishlab chiqarish liniyalarini ilgari surish va qo'llash bilan (raqamli egizaklar va mashinasozlik algoritmlari), yuqori haroratli qotishmalarning yuqori qismini muhandislikning oltinchi avlod samolyotlari dvigatellarini asosiy moddiy qo'llab-quvvatlashni tezlashtiradi.
Kompaniya: Baojium Dynamic Trading Co ., LTD
Mamlakat: Xitoy
Qo'shish: Baoti Road, Jinay, Baoji, Shayanxi, Xitoy
Cel: +86 18391896637 (WhatsApp) / 18391894207
Gmail:alisa@jmyunti.com
Veb-sayt: www . JM-Titanium . com