为了更好评价油套管特殊螺纹接头的性能,分析了API RP 5C5:2017和ISO 13679:2002标准的差异,并基于API 5C5:2017标准,对某特殊螺纹接头进行了密封性能评价。结果表明:试样经过上卸扣试验均未发生粘扣现象,极限样台肩扭矩与上扣扭矩的比...为了更好评价油套管特殊螺纹接头的性能,分析了API RP 5C5:2017和ISO 13679:2002标准的差异,并基于API 5C5:2017标准,对某特殊螺纹接头进行了密封性能评价。结果表明:试样经过上卸扣试验均未发生粘扣现象,极限样台肩扭矩与上扣扭矩的比值为0.24~0.78;在整个复合加载试验过程中,1#~4#极限样未出现结构失效及泄漏现象,1#~5#极限样在试验过程中的保载点或失效点均超过标准要求的极限载荷,满足API RP 5C5:2017 CAL IV标准的要求。展开更多
The novel copper?complex with salicylaldehyde benzoylhydrazone and pyridine ligands, Cu(C14H10N2O2)(C5H5N), has been synthesized and characterized by elemental analysis, IR and thermal analysis. The crystal structure ...The novel copper?complex with salicylaldehyde benzoylhydrazone and pyridine ligands, Cu(C14H10N2O2)(C5H5N), has been synthesized and characterized by elemental analysis, IR and thermal analysis. The crystal structure of the title complex has been determined by single crystal X ray diffraction techniques. The crystal belongs to monoclinic with space group P21/c. The cell parameters are: a=1.6362(9)nm, b=1.7140(9)nm, c=1.2255(7)nm, β=105.168(9)°, V=3.317(3)nm3, Z=8, Dc=1.525g·cm-3, μ(MoKα)=1.334mm-1, F(000)=1560. The structure wasrefined to final R1=0.0376, wR2=0.0909. The copper?ion lies in a distorted square planar environment composed of two oxygen atoms, one nitrogen atom of tridentate acyhydrazone Schiff base ligand and one nitrogen atom of the pyridine ligand. CCDC: 193111.展开更多
It was proved by ICP, fluorescence spectra and N 2 adsorption that the rare earth complex [C 5H 5NC 16H 33] [Eu(TTA) 4] is in the channel of Si-MCM-41 in the course of assembly. The rare earth complex of 67.9% is in t...It was proved by ICP, fluorescence spectra and N 2 adsorption that the rare earth complex [C 5H 5NC 16H 33] [Eu(TTA) 4] is in the channel of Si-MCM-41 in the course of assembly. The rare earth complex of 67.9% is in the channel, suggesting that the assembly of the complex molecular on the mesoporous MCM-41 was carried out mainly in the channel.展开更多
文摘为了更好评价油套管特殊螺纹接头的性能,分析了API RP 5C5:2017和ISO 13679:2002标准的差异,并基于API 5C5:2017标准,对某特殊螺纹接头进行了密封性能评价。结果表明:试样经过上卸扣试验均未发生粘扣现象,极限样台肩扭矩与上扣扭矩的比值为0.24~0.78;在整个复合加载试验过程中,1#~4#极限样未出现结构失效及泄漏现象,1#~5#极限样在试验过程中的保载点或失效点均超过标准要求的极限载荷,满足API RP 5C5:2017 CAL IV标准的要求。
文摘The novel copper?complex with salicylaldehyde benzoylhydrazone and pyridine ligands, Cu(C14H10N2O2)(C5H5N), has been synthesized and characterized by elemental analysis, IR and thermal analysis. The crystal structure of the title complex has been determined by single crystal X ray diffraction techniques. The crystal belongs to monoclinic with space group P21/c. The cell parameters are: a=1.6362(9)nm, b=1.7140(9)nm, c=1.2255(7)nm, β=105.168(9)°, V=3.317(3)nm3, Z=8, Dc=1.525g·cm-3, μ(MoKα)=1.334mm-1, F(000)=1560. The structure wasrefined to final R1=0.0376, wR2=0.0909. The copper?ion lies in a distorted square planar environment composed of two oxygen atoms, one nitrogen atom of tridentate acyhydrazone Schiff base ligand and one nitrogen atom of the pyridine ligand. CCDC: 193111.
文摘It was proved by ICP, fluorescence spectra and N 2 adsorption that the rare earth complex [C 5H 5NC 16H 33] [Eu(TTA) 4] is in the channel of Si-MCM-41 in the course of assembly. The rare earth complex of 67.9% is in the channel, suggesting that the assembly of the complex molecular on the mesoporous MCM-41 was carried out mainly in the channel.
