This paper analyses the longitudinal crack on the near net shape beam blank web surface in Laigang, gives the influencing factors and improved measures.
对近终形异型坯腹板表面纵向裂纹问题进行了分析,找出了工艺和设备方面的影响因素,通过对钢水质量、冷却条件、设备结构等方面进行优化改进,解决了铸坯表面裂纹缺陷问题,铸坯质量合格率由94%提高到99。
The longitudinal crack of steel bar is the main factor that influences its quality.
钢棒的纵向裂纹是影响其质量的主要因素。
aiming at the longitudinal concave micro-cracks existing in the 304 stainless steel produced by TISCO, the generation mechanism and reason has been analyzed, the technology such as increasing the crystallizer's taper, reducing the viscosity of protecting slag and weakening the cooling intensity of the crystallizer have been adopted, and the remark- able effect has been obtained.
针对太钢生产的304不锈钢板坯存在纵向凹陷微裂纹缺陷的问题,在分析其产生机理和原因的基础上,采取增加结晶器锥度,降低保护渣粘度和减弱结晶器冷却强度的工艺,取得了显著效果。
Study on Corner Sink and Vertical Cracks of CC Steel Billet
连铸坯角部凹陷及纵向裂纹的研究
Research on Magnetic Testing Methods and Their Application to Longitudinal Cracks of Steel Bars;
钢棒纵向裂纹磁性检测方法及应用研究
The results showed that the major cause of longitudinal surface cracking of20 steel tube blanks was higher nonmetallic inclusion content in the steel than standard value.
结果表明:非金属夹杂物超标是导致管坯表面产生纵向裂纹的主要原因。
Longitudinal-cracking Failure Analysis of Box
φ139.7mm钻杆内螺纹接头纵向开裂失效分析
Analysis on the tendency of welding hot cracks of aluminum alloy increased by longitudinal pre-tension
纵向预拉伸增大铝合金焊接热裂纹倾向的分析
The cracks are primarily parallel to the longitudinal direction of the girder and to the nominal bending stresses.
裂纹基本上平行于主梁纵向，既平行于名义弯曲应力。
This indicated that the fracture had initiated at the unfused butt weld in the longitudinal stiffener.
研究表明裂纹是从纵向加劲助未熔透的对接焊缝中起始的。
broken or burst apart longitudinally.
纵向破碎或者突然纵向破裂。
Listed in Column 2 are descriptions of the cracking.
第二纵列是关于裂纹的描述。
Study On Longitudinal Surface Cracks On CSP Hot-Rolled Plate
酒钢CSP热轧板卷表面纵裂纹研究
CAUSE ANALYSIS FOR SURFACE LONGITUDINAL CRACKS ON Q235B SLAB
Q235B钢板坯表面纵裂纹的原因分析
Improvement Practice of Reducing Surface Longitudinal Crack of Wide and Thick Slab
减少宽厚板坯表面纵裂纹的改进实践
Analysis and study of surface longitudinal cracks for SS400 steel sheet
SS400钢板表面纵裂纹分析及实验研究
Growing Crack Tip-fields on Anisotropic Bimaterial Interface
各向异性双材料界面裂纹扩展裂尖场
Formation and prevention of grade 20 steel CC bloom surface longitudinal cracking
20钢φ180连铸坯表面纵裂纹的形成与防止
Technics Study of Reducing Longitudinal Surface Crack of Beam Blank
减少连铸异型坯表面纵裂纹的工艺研究
Cause Analysis and Prevention Measure of Terminal Crack of Submerge-arc Welding Longtitudinal Weld
埋弧焊纵焊缝终端裂纹原因分析及预防措施
Generation Reason Analysis of Cold Crack in Welding Joint of Automobile Variable Speed Control Handle
汽车变速操纵杆焊接接头冷裂纹产生原因分析