The forming reasons of the skin blowhole in welding gas cylinder steel HP295 are analyzed.
分析了HP295焊接气瓶用钢铸坯皮下气泡缺陷的成因;明确了钢液的过热度及脱氧合金化是铸坯产生皮下气泡的主要影响因素;提出了相应的防止措施。
For bearing steel GCr15,by using low times test and making an observation and analysis of microstructure,it can be seen that the surface crack of billet results from skin blowhole and nonmetal lard.
针对GCr15轴承钢 ,通过低倍检验与显微组织的观察和分析 ,确定方坯的表面裂纹主要是由钢锭中的皮下气泡和非金属夹杂物所引
The result showed that the crack forming was due to the billet metal in the subcutaneous blow holes were oxidated during heating process and could not be sticked.
结果表明:轮箍裂纹是由于钢锭中存在严重的皮下气泡,在轮箍热加工过程中皮下气泡处金属被氧化烧穿导致不能粘合而形成裂纹。
By commenting on the relevant references, the forming reason and distribution of the subcutaneous blow hole in the continuous cast slab was discussed.
通过对有关文献的评述,讨论了连铸板坯皮下气泡的形成原因和分布特点,说明连铸过程中组合式结晶器角缝中上升气流吹入钢水可造成连铸坯皮下气泡。
The subcutaneous blow hole existing in ingot was the main reason by analysis.
对出口轮箍内外辋面出现裂纹现象进行了分析,得出其产生原因是钢锭中的皮下气泡在加热过程中被氧化烧穿不能焊合而造成的。
It is suggested that the inclusions,the content of oxygen and the subcutaneous bubble emerged after rolling are the main reasons which result in bend crack of strip steel.
针对带钢在加工使用过程中出现的弯裂现象,对于两种不同厚度规格出现弯曲开裂现象的带钢进行了金相分析、气体含量分析和SEM分析,认为带钢中夹杂物含量,钢中氧含量,以及皮下气泡经轧制后暴露是引起带钢弯裂的主要原因。
It is suggested that this defect is originated from the internal crack and the subcutaneous bubbles of billet,as well as unreasonable pass design of roughing mill.
通过对试样进行金相分析,对铸坯表面修磨试验结果分析及对连铸坯在高线粗轧第1道和第2道轧制的受力和变形的分析,发现盘条表面的一种特殊的线状缺陷形成的原因是连铸坯存在边内裂和皮下气泡,粗轧机组(特别是第1和第2架)孔型设计不合理,也促进这种线状缺陷的形成。
With the fixed u_g,the descending bubble size was 30%~40% less than that of rising one in the centre of the column and the descending bubble velocity was about 55% less than that of the rising one when the axial height was 0.
46 cm/s时,利用双头电导探针测定了上升和下降气泡的尺寸和速率。
Discussing various influence factors of ductile iron's surface blowhole defects indicates that bringing various gases in the molten metal or on the interface with the sand mould is inevitable.
对影响球墨铸铁件皮下气孔的各种因素分析表明,铁液中气体的产生有其必然性,通过减少气体的发生量以防止皮下气孔的方法并不是都能奏效。
After summarizing some tests having been done by others, it is found that MgO plays an important role in forming surface blowhole in ductile iron casting.
通过对前人所做皮下气孔试验的总结,认为MgO的存在是产生这一缺陷的关键因素,并就相关现象进行了理论分析。
After summarizing some tests having been done by others,it is found that MgO plays an important role in forming surface blowhole in ductile cast iron.
通过对以往所做皮下气孔试验的分析总结,认为MgO的存在是产生该缺陷的关键因素;设计了新的试验方案、给出了试验结果;在对相关现象进行了理论分析的基础上,提出了MgO促进皮下气孔形成的机理,同时讨论了生产实践中常见的解决方案。
The season of skin hole has been analyzed.
对铸坯产生皮下气泡的原因进行了调查和分析。
Formation of Subcutaneous Blow Hole of Casting Slab With Composite Mould
组合式结晶器内连铸坯皮下气泡的形成
Some improvement in insulating board composition, in shaping process and lining technology can effectively reduce the skin hole.
从中间包绝热板的配方、造技术和装砌等方面采取改进措施，可有效减少铸坯皮下气泡。
It is reckoned that the organic volatimatter and residual water in the insulating board are the main reason arousing the skin hole.
认为中间包绝热板村中的有机挥发物和残余水分是铸坯产生皮下气泡的主要原因。
With the air bubble technique, staining was fainter, and corneal endothelium could be injured because air in the anterior chamber was unsteady.
气泡下染色法由于空气泡不稳定 ,易造成角膜内皮损伤 ,且染色较淡 ;
Research on the effect of SO_2 and NO_x in the air to bronchus and alveolus epithelium
支气管肺泡上皮对大气中SO_2、NO_X反应的研究
THE RELATIONSHEP BETWEEN ADENOMATOUS HYPERPLASIA OF ALVEOLAR EPITHELIUM
肺泡上皮腺瘤样增生与细支气管肺泡癌的关系探讨
Histological Types and Significance of Bronchial and Bronchiolo-alveolar Epithelial Dysplasia;
支气管肺泡上皮异型增生组织学类型及其意义
Role of Glycogen Synthase Kinase 3 in Airway Epithelial Cell and Alveolar Type II Epithelial Cell Injury Caused by Cigarette Smoke;
GSK3在吸烟致气道上皮和肺泡II型上皮细胞损伤修复中的作用研究
Role of Glycogen Synthase Kinase 3 in Airway Epithelial Cell and Alveolar Type Ⅱ Epithelial Cell Injury Caused by Cigarette Smoke;
GSK3在吸烟致气道上皮和肺泡Ⅱ型上皮细胞损伤修复中的作用研究
The remaining bubbles may be so few and far apart.
剩下的气泡可能已很少并且相距很远。
Numerical Study of Underwater Bubble Collapse Dynamics Processes
水下气泡溃灭动力学过程的数值研究
Study on Sodium Transport in Alveolar Type Ⅱ Epithelial Cells of ARDS Rats.;
ARDS状态下肺泡Ⅱ型上皮细胞钠转运功能的研究
air bubble viscosimeter
气泡粘度计气泡粘度计
Research on the effect of air particles and pollutants on bronchus and alveolus epithelium
大气中粉尘颗粒物对支气管肺泡上皮影响的实验研究
Results The adhesion, disturbance, lodge, and squamous metaplasia of cilia in tracheal epithelium; and vacuolar degeneration in epithelium cells were observed.
结果气管上皮纤毛粘连、乱、伏及鳞状化生,上皮细胞空泡变性,并可见新生的纤毛上皮细胞。
The vast majority of lung cancer originated in bronchial epithelium, but there are a few cancer in alveolar epithelial origin or bronchial glands.
绝大多数肺癌起源于支气管粘膜上皮，但亦有少数癌肿起源于肺泡上皮或支气管腺体。
This is normal lung microscopically. The alveolar walls are thin and delicate. The alveoli are well-aerated and contain only an occasional pulmonary macrophage (type II pneumonocyte).
正常肺显微镜显示肺泡壁比较薄弱。肺泡内充满空气，有肺巨噬细胞（II型上皮细胞）。