燒結氧化鎂 的英文怎麼說
中文拼音 [shāojiēyǎnghuàměi]
燒結氧化鎂
英文
sintered magnesite-
In the article, the originator worked out the mechanism of magnesium - base alloys catching fire ; analyzed briefly the influence of the temperature, the heating velocity and the pressure of oxygen in the atmosphere on the lumps and scraps of pure magnesium ’ s catching fire, and designed a practical method to measure the kindling temperature of the lumps and scraps of pure magnesium precisely, with which the initial quantization of kindling temperature can be realized
本文圍繞鎂合金阻燃技術的開發作了許多基礎性的研究工作，通過分析大量的相關文獻和試驗結果，初步得出了塊狀鎂和鎂屑的燃燒機理，簡要分析了溫度、升溫速度、環境中氧的分壓對塊狀鎂和鎂屑的起火燃燒所產生的影響。設計出了精確度高、實用性強的塊狀鎂和鎂屑的燃點測試方法，使塊狀鎂和鎂屑的燃點得到初步的量化。Available standard ma - spinel bricks differ mainly in the type of magnesia and in the amount and type of their alumina carrier ( sintered and fused ma - spinel ， calc. alumina ， white fused alumina ， etc
目前各種標準的鎂鋁尖晶石磚主要在氧化鎂的數量、種類和它們鋁載體的種類（燒結和電熔鎂尖晶石、鈣，氧化鋁，白電熔等）方面有很大的不同。The results show that : the fillers of sio2 based investment consist of sio2, al2o3 and mgo, and the binder is nh4h2po4 for sio2 based investment, the bulk density and the compression strength decrease, the apparent porosity and the thermal expansion increase, when the specimens are heated to 900 ; the fillers of al2o3 based investment consist of al2o3 and mgo, and the binder is nh4h2po4 ; for al2o3 based investment, the bulk density decreases and the apparent porosity increases when the specimens are heated to 900 ; the fillers of mgo based investment consist of mgo and al2o3, and the binder is ca cement ; for mgo based investment, the compression strength decreases and the thermal expansion increases greatly when the specimens are heated to 900
結果表明：氧化硅系包埋料的骨料是氧化硅、氧化鋁、氧化鎂，結合劑為磷酸二氫銨，其900鍛燒后顯氣孔率增加，體積密度下降，耐壓強度降低，熱膨脹增大；氧化鋁系包埋料的骨料是氧化鋁和氧化鎂，結合劑為磷酸二氫銨，其900燒后顯氣孔率增加，體積密度下降，熱膨脹變化不大；氧化鎂系包埋料的骨料是氧化鎂和氧化鋁，結合劑是鋁酸鈣水泥，其900燒后耐壓強度明顯降低，熱膨脹明顯增大。The widely used mg alloy zm5 is chose as the original alloy. on the surface of the molten alloy, a layer of protective film with dense structure is formed by the addition of la, ce or mischmetal. the film prevents the penetration of oxygen and volatilization of mg vapor, and then prevents the zm5 alloy from oxidation and burning
針對目前廣泛應用的zm5鎂合金，通過添加稀土鑭、鈰和混合稀土，在鎂合金液面上形成一層結構緻密並且具有耐久性的保護膜，阻止氧氣的進一步侵入和鎂蒸氣的向外揮發，不再產生鎂的劇烈氧化燃燒現象。This paper is concentrated on preparing si3n4 / sic, si2n2o / sic and o ' - sialon / sic by reactive sintering techniques. the components of raw materials and microstructure of these three ceramics were studied. at the same time, molten al, cu, zn, mg and cryolite corrosion resistance of silicon nitride bonded silicon carbide were tested too
本論文通過成份及微結構設計，採用反應燒結工藝制備了力學和抗氧化性能優異的o ' - sialon sic 、 si _ 2n _ 2o sic和si _ 3n _ 4 sic陶瓷材料，並研究了它們的抗鋁、銅、鋅、鎂有色金屬熔體及冰晶石熔鹽侵蝕性能。分享友人