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 Posted: Wed 22:19, 05 Jan 2011 Post subject: jordan shoes Thermal processing patent _5 |
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Thermal processing patent
The larger the critical strain caused by the deformation corresponding to 950 ℃ heat treatment the hardness of organizations are all 57 ~ 58HRC. : 760 ℃ temperature. 0.1,0.5 s strain rate, the thermal deformation of tissue leaves I, Austria's off wins extension of fart particles are clearly elongated features. Austenite grain boundary ferrite appears Thermomechanical Treatment of hardness were 57 ~ 59HRC,[link widoczny dla zalogowanych], about 53HRC7l0 ℃ temperature. 0.1,0.5 s strain rate corresponding to the hardness of the organization thermomechanical treatment were 42 ~ 49HRC, 43 ~ 52HRC, the lower hardness values. Large range. The description of strain rate on the hardness of 760 ℃, 710 ℃ heat treatment deformation hardness of the organization law of obvious 3 Conclusions (1) 40Cr steel at strain rates of 1 ', deformation of 0.7. Deformation temperature of 950 ℃ and above. Austenite dynamic recrystallization occurred: 7lO ℃ under the strain of austenite deformation temperature ferrite D acceleration. (2) obtained by thermomechanical treatment depends on the hardness of martensite carbon content. Products with high-temperature austenite grain morphology has little internal structure of paragraph (3) 950 ℃, deformation of 0.7. Strain rate increases, the product of hot deformed austenite grain size has also been increased, this may be the greater the strain rate, austenite dynamic recrystallization the greater the critical variable directly caused (4) 760 ℃, 71O ℃ temperature ,[link widoczny dla zalogowanych], the deformation of 07, the strain rate on the hardness of Thermomechanical Treatment of law is not obvious. References: [1】 Cui Zhong Qi Metallurgy and Heat Treatment lM】 Beijing mechanical r industry flj sleep Sapporo, 2000308 [2] accounting for the village 々 male photo's with thermal deformation to play for and shape Cui hot site management 【a) 【-q. Iron and steel. 1985,20 (I, :67-75 【3] shoes East,[link widoczny dla zalogowanych], Lebanon, sash Yue Ming, Tong Xiaohui. Heat Treatment Engineer Manual 【M】 Beijing: Mechanical Industry Hj Edition ~-k.200I94 【4] Ying Zhang. 40CrI Shai's Tong Hong-Bing hot baby delete {T is [. Jl heat plus lTT Arts .200635 (2} :50-5I. [5】 【heat treatment of steel buildings Liu M] + Beijing:} fi capsule 1. Industry 1I Bauer officiating. I981327 . TIAN Patent Name: built-in heating a furnace cooling enough nitrate quenching _ patent number: 03235954.3: Public No.: CN26J3488 Filing Date: 20030320:, Si \ Open Date: 2004.04.28 Applicant: Dongfeng Motor Corporation Ha Bong utility model involves a metal heat treatment equipment such as temperature and quenched l feet, are due to the nitrate salt bath quenching _. built-in heating due to quenching in a cooling furnace nitrate. mainly include stainless steel crucible,[link widoczny dla zalogowanych], heating temperature control system, motor drive mixing fan. its features are: quenching furnace described include a heated salt bath cooling system. above bath heating. cooling system described by the arrangement of the coils surrounding the crucible and sealed as described in snake-like pipe insulation unit composition. by the hardening furnace,[link widoczny dla zalogowanych], 5 - for the scope of study. In temperatures below 350 ℃ can use any control. cooling pipe cooling efficiency. use of safe and reliable. device area is small: nitrate bath temperature uniformity is good. entrusted with the approved parts of the hardness of quenched fluctuations in a small range: improved production efficiency. saving energy. \
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