thermo forming 中文意思是什麼
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During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied
在溫度場的模擬中，模擬結果表明，保壓時間是影響製件成形質量的關鍵因素之一，擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大，需進行參數之間的協調，只有當變形區內部始終維持準固態時，才能實現穩定的液-固擠壓成形過程；在變形場的模擬中，根據液態浸滲擠壓的成形特徵，選用了雙曲正弦剛-粘塑性有限元計算模型，研究了變形過程中應力應變場的變化規律，研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。 -
Based on the study of geological background and structural settings, and with the geological event as the main thread, the author analyzed the development history of the regional ore - forming structures, especially, the new - forming and inherited structural systems since yanshanian movement, and the range - basin structures of marginal - pacific ore - forming domain, and the thermo - uplifting structure of the lushan ore - body as well as the yiwulushan metamorphic core complex, which are three different scale ore - forming structural systems
論文在緊密結合地質背景、構造背景研究的基礎上，以地質事件為主線，分析該地區域成礦構造的成生歷史，特別是燕山運動以來繼承及新生的構造體系格架與濱太平洋成礦構造域的盆嶺構造、閭山巖體熱隆、變質核雜巖等3個不同級別的區域成礦構造系統。
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