1) shear fracturing
剪切压裂
1.
These technology include high-energy gas fracturing technology, hydrajet fracturing technology and shear fracturing technology.
对目前国内外水力压裂技术近期进展作了调研,分析了高能气体压裂技术、水力喷射压裂技术、剪切压裂技术等压裂技术在近井眼区域控制裂缝起裂延伸的机理、应用范围及效果,对这些技术存在的问题进行了研究, 并结合在油气田生产中的应用,指出了进一步发展的方向及需要解决的主要问题。
2) shearing transversal crack
剪切横裂
1.
The shearing transversal crack in slab is resulted from the intercystalline crack of continuous casting blank at relevant position.
板材剪切横裂纹源于连铸坯相应部位的柱状晶晶间裂纹,而柱状晶晶间裂纹是由于矩形连铸坯宽面柱状晶区的收缩应力向两侧传递,在靠近窄面柱状晶区末梢形成拉应力,进而造成柱状晶晶间裂纹。
3) shear fracture
剪切断裂
1.
The fragment ratio of tension and shear fracture of 50SiMnVB cylinder shell under explosive load is investigated.
试验中还观察到在拉伸断口应力方向的断面上出现了熔化现象,这说明在拉伸断裂区局部存在着剪切现象,同时证明采用高能束改性后圆筒在爆炸载荷作用下可产生全壁厚剪切断裂。
2.
A macro and micro and chemical element analysis was made on fracture of ruptured coupling bolts,torsion test was performed and stress analysis and calculation were made,the results show that when the steam turbine had failure,MP-LP rotor coupling bolts and generator-exciter rotor coupling bolts failure were classified as overload shear fracture with partial deformation .
对215MW汽轮机断裂的对轮螺栓做断口宏观、微观分析,化学元素分析,扭转试验及受力分析计算,结果表明汽轮机组在事故中,中压-低压转子对轮螺栓和发电机-励磁机转子对轮螺柱的失效类型为:过载剪切断裂,同时局部挤压变形,这是由于事故过程中轴系受到冲击扭矩作用而引起的。
3.
Extensive research has been done on the fracture behavior of concrete, but very little on shear fracture.
有关混凝土的断裂行为己被广泛研究,但很少是针对剪切断裂的情况。
4) shear cracking
剪切开裂
1.
The forming mechanism of shear cracking in HR plate with high strength was researched.
采用化学成分分析、宏观和微观检验及试验验证等方法对某热轧高强度钢板剪切开裂原因进行了研究。
5) shearing splitting
剪切撕裂
1.
With the job site sampling analysis the results shows that the reason to cause the shearing splitting is the over-clearance of the shear blade and the wearing of the shear blades.
针对大规格轴承钢轧材在剪切过程中出现的撕裂现象进行了探讨,现场及取样分析结果表明:剪刃间隙过大、剪刃经磨损变钝是造成剪切撕裂的直接原因。
补充资料:稠化油压裂液
分子式:
CAS号:
性质:将稠化剂(常用脂肪酸皂)溶于油中(多用原油、汽油、煤油或柴油为基液)形成稠化油压裂液。所用的稠化剂分为油溶性活性剂和油溶性高分子两类。前者除脂肪酸单皂、双皂外还有磷酸酯盐等;后者有聚烯烃、聚二烯烃,如聚丁二烯、聚异丁烯、聚异戊二烯,还有α-烯烃聚合物、聚烷基苯乙烯、聚丙烯酸酯、聚羧酸乙烯酯等。
CAS号:
性质:将稠化剂(常用脂肪酸皂)溶于油中(多用原油、汽油、煤油或柴油为基液)形成稠化油压裂液。所用的稠化剂分为油溶性活性剂和油溶性高分子两类。前者除脂肪酸单皂、双皂外还有磷酸酯盐等;后者有聚烯烃、聚二烯烃,如聚丁二烯、聚异丁烯、聚异戊二烯,还有α-烯烃聚合物、聚烷基苯乙烯、聚丙烯酸酯、聚羧酸乙烯酯等。
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