1)  internal crack
内裂缝
2)  intragranular fracture
粒内裂缝
1.
In the process researching the reservoirs in Hongtai area,which is based on the casting and conventional thin section inspection data,many intragranular fractures are found.
在对吐哈盆地红台地区进行以岩芯铸体薄片和普通薄片为基础的储层微观特征研究过程中,发现在许多井中发育分布较广的粒内裂缝
3)  inner crack
内裂
1.
The reason for inner crack of Q235 square billet is analyzed.
分析了宣钢炼钢厂Q235方坯产生内裂的原因,认为化学成分、中包钢水温度和拉速是导致Q235方坯产生内裂的主要因素。
2.
The reason for inner crack in rectangular billet is analyzed and some measures to improve presented.
简析了石钢电炉炼钢厂矩型坯内裂产生的原因,并提出了相应改造措施。
3.
For the inner crack appearing often in round-rod rolling steels in the production, the influence to the crack from deformation extent and mechanical condition in the deformation region is discussed.
圆棒轧材在生产过程中经常出现内裂纹,本文研究了变形程度和变形区力学条件对内裂纹的影响。
4)  inner cracks
内裂纹
1.
Effect of vanadium content on inner cracks thermal-healing of steels;
钒对钢内裂纹热愈合性能的影响
2.
The inner cracks of 430 stainless steel samples with adding various vanadium were gotten by drilling and compressing,and then thermal-healing experiment to inner cracks was carried out.
对添加不同含量钒的430不锈钢试样,采用钻孔压缩方法获得内裂纹,然后对其进行热愈合实验,研究了钒对试样内裂纹热愈合和形态演化的影响。
3.
By the simulative research on the self-healing process of inner cracks in 20MnMo material,it has been found that the healing-crystal is the primary self-healing mechanism of cracks.
20MnMo材料内裂纹自修复过程的模拟研究表明,修复结晶是裂纹的主要自修复机制。
5)  side internal crack
边内裂
6)  Spalling out of internal crack
内裂剥落
参考词条
补充资料:-戊内酯、3-甲基丁内酯、咖吗-戊内酯
CAS: 108-29-2
分子式: C5H8O2
分子质量: 100.12
沸点: 207-208℃
熔点: -31-208℃

中文名称: 4-戊内酯、γ-戊内酯、3-甲基丁内酯、咖吗-戊内酯

英文名称: dihydro-5-methyl-2(3H)-Furanone、dihydro-5-methyl-2(3h)-furanon、4-hydroxypentanoic acid lactone、4-hydroxyvaleric acid lactone、4-methyl-gamma-butyrolactone、gamma-methyl-gamma-butyrolactone、gamma-valerolakton

性质描述: 无色至微黄色液体。凝固点-31℃,沸点205-206.5℃,83-84℃(1.73kPa),相对密度(25/25℃)1.0578,折光率(nD25)1.4301。能与水、许多有机溶剂、树脂和蜡等混溶。10%水溶液的pH为4.2。

生产方法: 由不饱和羧酸通过闭环反应来合成,例如乙酰乙酸与硫酸共热,或乙酰丙酸在镍、铜等催化剂存在下加氢。

用途: γ-戊内酯有较强的反应能力,可用作树脂溶剂及各种有关化合物的中间体。也用作润滑剂、增塑剂、非离子型表面活性剂的胶凝剂、加铅汽油的内酯类添加剂,用于纤维素酯和合成纤维的染色。γ-戊内酯具有香兰素和椰子香味。我国GB2760-86规定为允许使用的食用香料。主要用以配制桃、椰子、香草等型香精。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。