The bonding phase of self-fluxing sinter used before was composed predominately of cuspidine and hyaline, mechanical strength of which as well as their bonding strength with respect to magnetite are rather weak.

自熔性燒結(jié)礦的膠結(jié)相主要由槍晶石和玻璃體所組成免费网站在线观看人成视频，兩者的機(jī)械強(qiáng)度都較低日本高清一道本一区二区，對(duì)磁鐵礦的相對(duì)膠結(jié)強(qiáng)度也較小高清一级做a爱过程免费。

The cuspidine is all long known as the main factor leading to the low strength o the sinter bearing fluorine, But with the fluorine decreasing by a wide margin, the strength of the sinter bearingfluorine get lower. So, the first work is to fine out the reason to cause the strength low.

含氟燒結(jié)礦中的槍晶石一直被認(rèn)為是制約包鋼燒結(jié)礦強(qiáng)度的主要因素，但隨著含氟量的大幅度降低十八岁美女免费网站，燒結(jié)礦的強(qiáng)度卻進(jìn)一步惡化A片在线播放免费高清视频，因此A级黄色毛片XXXXX，弄清影響低氟燒結(jié)礦強(qiáng)度的原因是提高燒結(jié)礦強(qiáng)度的前提和基礎(chǔ)。

This thesis has systematically studies the microstructure of the sinter bearing fluorine of different compositions and in different sintering condition.(1) The main units of the Low Fluorine Sinter are magnetite成年人在线视频免费观看视频、hematite久久久九九少女、 SFCA、larnite精品日韩性爱、glass and pore. The cuspidine doesn't form for the low content fluorine, and the fluorine is in glass; Sinter basicity dominates the forming of the larnite and SFCA, when basicity is between 1. 72 and 1. 96, there are more larnites in the binder phase, and when the basicity is biger than 1. 96, there are more SFCA in the binder phase; the hematite appears like magnetite and usually is around pore.

為此亚日韩欧美性爱片，本文對(duì)不同組成、不同燒結(jié)條件的燒結(jié)礦樣品進(jìn)行了系統(tǒng)的顯微分析和研究欧美一级A片在线视频免费观看，其主要內(nèi)容包括：(1)構(gòu)成低氟燒結(jié)礦的主要組元有磁鐵礦、赤鐵礦我要操我要干、鐵酸鈣午夜免费播放成人无码视频在线看、硅酸二鈣、玻璃體和氣孔国产一级性爱网站，由于含氟量的降低黄色自拍偷拍网址，槍晶石等含氟礦物并未形成，氟分布在后期凝固的玻璃體中免费AA午夜精品，其中硅酸二鈣和鐵酸鈣受堿度影響較大免费美女网站国产，硅酸二鈣在堿度為1.72～1.96范圍內(nèi)形成較多，鐵酸鈣在堿度大于1.96含量增多晚上福利视频，赤鐵礦呈磁鐵礦假象人人看人人摸人人操人人看，多分布在氣孔周圍，各組元的生成順序?yàn)椋捍盆F礦—硅酸二鈣—鐵酸鈣—玻璃體国产A片综合。

The results showed that:①the crystalline phases are mainly the cuspidine, wollastonite and gehlenite with nepheline, fluorite and olivine also found in some samples under the experimental conditions;②with the bacisity and CaF_2 content increased, crystalline proportion of mold flux rises .

熔融保護(hù)渣在MoSi2高溫電阻爐內(nèi)以2℃/min降溫速率冷卻至室溫最新2020中文字幕永久人人视频，制成薄片，采用巖相顯微鏡分析保護(hù)渣的結(jié)晶礦相·結(jié)果表明：在本實(shí)驗(yàn)條件下搞黄刺激网站，結(jié)晶礦相主要有槍晶石亚洲不卡AV不卡一区二区岛国，硅灰石，黃長(zhǎng)石激情图片久久久，個(gè)別渣樣有霞石大学生美女一级片，螢石，橄欖石蜜桃无码成人影片在线播放；增大保護(hù)渣堿度电影一级毛片，能促進(jìn)保護(hù)渣結(jié)晶；隨著渣中CaF2欧美真人性爱一线黄片在线免費观看，Na2O免费啪视频现在线视频网站，K2O和Li2O質(zhì)量分?jǐn)?shù)的增大，保護(hù)渣結(jié)晶化率增大看黄网站免费；隨著渣中Al2O3欧美午夜理论片在线播放，MgOAv最新高清无码专区，BaO和MnO質(zhì)量分?jǐn)?shù)的增大，保護(hù)渣結(jié)晶化率減小

In the condition of keeping F欧美丰满老熟妇乱子视频在线观看、 K点击进入在线影院毛片、Na content fixed, To improve slag structure and raise slag melting point and viscosity, MgO content is raised and TiO〓 is added. the main content is as follows:(1) Keeping CaO/SiO〓 fixed, MgO content rises from 10% to 16%, the free running temperature goes up 106℃, the viscosity goe down at bigger than 1425℃, but difference is little; keeping /SiO〓 fixed, MgO content rises from 10% to 16%, the free running temperature rises 87℃, the viscosity rises too; adding TiO〓 to 5%, the free running temperature goes up 98℃, the viscosity rise a little.(2) Powder crystal x ray diffraction and microscopic analysis shows: increasing MgO content, the cuspidine will decreace or even disappear, the monticellite goes up with MgO content rising, keeping /SiO〓 fixed, Akermanite content goes up, for high melting point minerals appear or go up, the free running temperature of the slag bearing F is raised; Adding TiO〓, high melting point mineral—Perovskite forms, it can making other minerals'crystalling fast, it is the reason that TiO〓 raises the free running temperature of the slag bearing F.

2對(duì)測(cè)定粘度的冷凝渣所進(jìn)行的X粉晶衍射及顯微分析和鑒定表明，增加MgO含量国产麻豆亚洲精品专区，渣中槍晶石將減少甚至消失一级毛片AAAA视频播放，而鈣鎂橄欖石則隨MgO含量增加而增加，在／SiO〓不變時(shí)色永久免费视频入口，黃長(zhǎng)石含量也有所增加美女黄片在线看，高熔點(diǎn)礦物的出現(xiàn)和增加，提高了含氟熔渣的熔化性溫度国产亚洲欧美日韩在线观看不卡；加入TiO〓熔渣中將形成高熔點(diǎn)礦物-鈣鈦礦先锋av资源网址免费，鈣鈦礦的形成還促使黃長(zhǎng)石的結(jié)晶，這是TiO〓提高含氟熔渣熔化性溫度的根本原因人人操,人人揉,人人看。