Guide for test procedures for thermal evaluation of insulation systems for solid cast and resin - encapsulated power and distribution transformers 固體澆鑄和樹脂密封的電力和配電變壓器絕緣系統(tǒng)熱評(píng)定試驗(yàn)程序指南
And the microstructure , the hardness and the wear resistance properties of the composites fabricated by semi - solid casting had been studied and analyzed 本文采用半固態(tài)復(fù)合鑄造法制備了sic顆粒增強(qiáng)鋁基復(fù)合材料,同時(shí)研究了復(fù)合材料的微觀組織、硬度和耐磨性能。
The microstructure , the hardness and the wear resistance properties of the composites fabricated by semi - solid casting has been studied and analyzed metallographic analysis indicated that sic particles dispersed uniformly in the composites 本文采用半固態(tài)復(fù)合鑄造法制備了sic顆粒增強(qiáng)鋁基復(fù)合材料,并對(duì)這一系列材料的微觀組織、硬度及耐磨性能進(jìn)行了研究與分析。
Several kinds of inorganic solid proton conductors including zirconium phosphates , heteropolyacids ( hpa ) and hydrogen sulfates and three kinds of methods such as hybrid solid casting , exchange - precipitation process and sol - gel process which can incorporate the inorganic solid proton conductors in pems were introduced 摘要主要介紹了目前摻雜質(zhì)子交換膜用的幾種無機(jī)質(zhì)子導(dǎo)體磷酸鋯、雜多酸、硫酸氫鹽等,并進(jìn)一步介紹了將這些無機(jī)質(zhì)子導(dǎo)體引入到聚合物中的3種摻雜方法:混合澆鑄法、離子沉淀法和溶膠凝膠法。
Abstract : this paper summarized the present study status of the semi - solid casting technology in the following aspects : basic theory study ( the rheological behavior and the microstructural characteristics of semi - solid alloys ) , modeling of the semi - solid forming process , raw material production , property and industrial applications 文摘:論述了半固態(tài)鑄造技術(shù)的基礎(chǔ)理論研究(半固態(tài)合金流變行為及其微觀組織特征) 、半固態(tài)鑄造合金成形過程的數(shù)值模擬、半固態(tài)鑄造原材料的制備工藝、性能及工業(yè)應(yīng)用現(xiàn)狀。