1. Kalit harorati doirasi va mulk o'zgarishi
(1) past harorat (-40 darajasi 0 darajagacha)
Hosil / keskinlik kuchi: Harorat tushganda biroz ko'payadi (5-10%). Masalan, kuch berish kuchi (qalinligi 16mm qalinlikdan kam yoki unga teng) 355 MPa (20 daraja) ~ 370-380 MPA ga ko'tariladi.
Egiluvchanlik (cho'zish): Asta-sekin kamayadi. -40 daraja, cho'zish 15-18% gacha tushishi mumkin (qalinligi 3-40 mm ga nisbatan 22% dan yuqori), ammo mo'rt deformatsiyani oldini olish uchun etarli.
Ta'sir kuchayishi: Eng sezgir mulk. S355J0WP 0 darajali ta'sirga chidamliligiga (27 ga teng yoki teng yoki unga nisbatan katta yoki keskin pasayish uchun baholanadi:
- 10 daraja: Ta'sir energiyasi (kV) ~ 20-25 J ga kamayadi (mo'rt egiluvchan o'tish yaqinida).
-20 darajasi -40 darajaga tushadi<20 J, increasing the risk of brittle fracture under dynamic loads (e.g., impacts, sudden stress).
(2) Atrof-muhit harorati (100 darajaga 0 daraja)
Hosil / keskinlik kuchi: Standart qiymatlarga barqaror va standart qiymatlarga mos (335-355 MPa, keskinlik 470-680 MPA). Minimal o'zgaruvchanlik (<3%) within this range.
Egiluvchanlik: Optimal - cho'zish 16-22% (qalinligi bo'yicha) dan yuqori yoki unga teng bo'lsa, yaxshi o'rnidan turib (egiluvchan, payvandlash) va unga chidamlilikni ta'minlaydi.
Ta'sir kuchayishi: EN 10025-5 talabi (0 darajali yoki 27 J ga teng) bilan uchrashadi va 20-100 darajasida (kV 30-40 j holdan katta yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki unga teng yoki teng bo'lsa, mo'rt tanazzulga ega bo'lsa.
(3) o'rtacha yuqori harorat (100 darajaga 300 daraja)
Hosil / keskinlik kuchi: Harorat ko'tarilishi natijasida asta-sekin kamayadi. 300 darajaga:
Hosildorlik kuchini ~ 20-25% gacha pasaytiradi (masalan, 355 Mpa → 270-290 MPa 16 mm qalinlikdan kam yoki unga teng).
Qishloq kuchlari ~ 10-15% ga kamayadi (masalan, 470-630 MPa → ~ 400-540 MPA).
Egiluvchanlik: Po'fırınni deformatsiyaga aylantiruvchi, ammo kamroq qattiqqo'llash uchun 3% ni oshiradi.
Ta'sir kuchayishi: Atrof muhitining yuqori harorati sifatida etarlicha etarlicha yoki 25-30 jicha katta yoki teng bo'lgan kV) etarlicha yuqori haroratni qo'zg'atmaydi.
(4) High Temperatures (>300 daraja)
Hosil / keskinlik kuchi: Tezlashtirilgan pasayish. 400 darajadan yuqori, hosildorlik 40-50% (Vserent) va tarkibiy kuchlanish sezilarli darajada pasayadi.
Egiluvchanlik: Continues to rise, but the steel becomes prone to creep (slow plastic deformation under sustained load) - not suitable for long-term service at >300 daraja.
Ta'sir kuchayishi: Yuqori - harorat dasturlari uchun egiluvchan bo'lib qolmoqda
2. Arizalar uchun asosiy asoslar
Past - Harorat chegaralari: S355J0WP-dan foydalanish - yuksalish uchun 10 daraja - ko'tarilishi yoki ta'sirchan tuzilmalari (masalan, sovuq mintaqadagi ko'priklar, ochiq mashinalar) dan foydalanish uchun foydalaning. Buning o'rniga-20 darajali--40 daraja uchun -40 darajadan foydalaning (-20 darajaga chidamlilik uchun chidamlilik).
Atrof-muhit / mo''tadil harorat: Ochiq tarkibiy dasturlar (to'siqlar, yig'ish, saqlovchi devorlar) -} Xususiyatlar barqaror va loyiha loyihalarini taxmin qilish bilan bog'liq.
Yuqori - Harorat stsenariylari: Uzoq vaqt - Muddatli xizmat uchun - Maslahat uchun mos emas (masalan, sanoat pechlari yaqinida) - QURILISH - QANDAY QANDAY QANDAY QURILMALAR (masalan, en 1.4903) Agar harorat 300 darajadan oshsa
