As the concentration of FeO increasing, the rate of decarburizing and reaction-dissolving of refractory rises sharply. Meanwhile gas production rate of reduction reaction is increased and motion and foaming of molten slag are also speeded up. The corrosion feature of refractory containing graphite carbon is that the most severity area is slag level (interface of slag-gas phas -refractory) and slag-metal interface comes second, and the lowest corrosion rate is the area of iron-bath.

熔體的組成国产h视频网站在线视频、溫度及熔體與耐火材料間的相對運動對耐火材料的侵蝕產(chǎn)生著很大影響2021_大逼色，而熔渣中FeO濃度是最主要的因素男人天堂无码专区，F(xiàn)eO濃度提高六月婷婷五月激情，使耐火材料脫碳和反應(yīng)熔蝕速度呈直線上升，熔體中還原產(chǎn)生氣體量增加A片欧美日韩一区二区高清，熔體漲泡及運動速度提高欧美日韩网站，這些作用都加快了熔體對耐火材料的侵蝕。

This paper gives a discussion on relation between shape,size and quality of welding seam ,and introduces the effect on liquidity of metal in molten bath and shape of molten bath from welding stress and the effect on size of welding seam from welding parameter and its technological factors.

論述了焊縫的形狀尺寸與焊縫質(zhì)量的關(guān)系www.色色色.Ccom，介紹了焊接中力對熔池金屬的流動及熔池形狀的影響欧美性爱视频1、焊接參數(shù)和工藝因素對焊縫尺寸的影響，對焊縫缺陷產(chǎn)生的原因進(jìn)行了分析并提出了預(yù)防措施一级全黄A片免费观。

Experience shows that the introduced magnetic field can give an effective intervention to the transition of droplet, flowing of molten bath metal, crystalline and nucleation of molten bath and the process of crystalline growth. The magnetic field promotes the refining degree of primary crystallization structure , decreases the chemistry non-homogeneity, So it can strengthen hardness and wearing resistance of weld metal overlay and improve quality of surfacing deposit.

實踐表明能免费观看的黄色网站，利用外加磁場對焊接中熔滴的過渡、熔池金屬的流動老肥熟小旅馆老熟女口爆视频、熔池的結(jié)晶形核及結(jié)晶生長等過程有顯著作用ww欧美日韩在线视频，使堆焊層的一次結(jié)晶組織細(xì)化，控制硬質(zhì)相的分布亚洲熟妇丰满XXXXX小频，減小化學(xué)不均勻性欧美88888888，從而提高了堆焊層金屬的硬度和耐磨性，全面改善堆焊層的性能一级片黄色强奸。

The results reveal that spectra obtained by different parametric methods are similar. The spectra of normal cells' voltage have only one noticeable lobe due to fluctuation of molten alumina at anodes, while spectra of other abnormal cells have one mainlobe and one sidelobe. In cells with carbon in bath the spectral mainlobe of cell voltage is still due to the fluctuation of molten alumina at anodes and the sidelobe is due to the fluctuation of carbon in bath; in cells with metal pad wave, the spectral mainlobe is due to metal pad waving and the sidelobe is still due to the fluctuation of molten alumina at anodes. Compared with wavelet packet analysis, spectral analysis is simpler and takes less time in calculation, which is a big merit in the large-scale application of online diagnosis systems of working conditions in aluminum reduction cells.

研究結(jié)果表明：不同的參數(shù)估計法得到趨于一致的頻譜分析結(jié)果久久久久久精品免费免费直，正常槽只有1個尖銳譜峰，對應(yīng)于陽極下熔融氧化鋁涌動的特征峰中文字幕欧洲有码无码，其他故障槽都有2個特征譜峰A片一级免费视频，即1個主峰和1個次峰，碳渣槽的主峰仍然對應(yīng)著陽極下熔融氧化鋁涌動特征峰狼友视频在线免费g观看，次峰對應(yīng)懸浮碳渣的涌動特征峰91啪在线观看精品；鋁液波動槽主峰對應(yīng)鋁液波動特征峰，次峰對應(yīng)著熔融氧化鋁涌動的特征峰亚洲激情图片；頻譜分析相對于小波包分析具有算法簡單99riav3、耗時少、物理意義明確等特點timi11.com，在槽況在線診斷系統(tǒng)的大規(guī)模推廣中具有優(yōu)勢你懂得福利网站。