1) skin blowhole
皮下气泡
1.
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。
2.
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
2) subcutaneous blow hole
皮下气泡
1.
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。
2.
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。
3.
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。
3) subcutaneous bubble
皮下气泡
1.
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。
2.
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。
5) descending bubble
下降气泡
1.
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。
6) surface blowhole
皮下气孔
1.
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。
2.
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。
3.
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。
补充资料：皮下气泡
皮下气泡
subsurface blowholes
P jXIQ qIP00皮下气泡(subsurfaee blowholes)存在于钢锭皮下的气孔。它有两种形态:一种是以针状细孔形态大面积分布于钢锭皮下，这是由于钢液脱氧不足，钢水凝固时析出的氧与碳反应生成CO气泡所致。这种皮下气泡主要靠强化脱氧来防止。另一种是以较大的气泡形态零散分布于钢锭皮下。这是由于钢水中含气量过高，或者是浇注系统潮湿或保护渣潮湿，浇注时气体析集于皮下所造成，其防止措施主要是加强原材料烘烤，降低钢水含气量，保持浇注系统和保护渣干燥。皮下气泡的危害是造成轧材产生深口、裂痕、气泡、甚至海绵面。 (汪建农)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条