Application of Waste Dumping Technology in Foundation Construction at Home and Abroad

Zhang, Jin Miao; Xia, Yongqiu; Mei, Wen Ming

doi:10.4028/www.scientific.net/amr.1065-1069.1553

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“…In 2017, China imported more than 2,000 tons of titanium sheets and exported more than 200 tons [4]. Domestic cold-rolled titanium sheets have many surface defects, which are significantly different from foreign surface quality [5]. Zhang Zhibo et al studied the effects of annealing temperature (550 ~ 710 °C) on the microstructure and mechanical properties of TA1 cold rolled titanium sheets with thicknesses of 0.5 and 1.0 mm [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Preparation Process on Surface Quality and Microstructure of Titanium Sheet

Zhang

Dong

et al. 2019

MSF

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At present, domestic cold-rolled titanium sheets have many surface defects, which are significantly different from foreign surface quality. This paper mainly studies the differences in the microstructure and performance of titanium plates GR1 and GR2 imported from Japan and domestic titanium plates TA1, and analyzes the causes of surface defects to solve the problem about TA1. The surface properties of different materials were observed. The mechanical properties of the materials were obtained by room temperature tensile test. The surface roughness of the three materials was tested. The microstructure and composition of the three materials were characterized by SEM, EDS and XRD. The results show that the surface of GR1 and GR2 is brighter and has no obvious chromatic aberration. The surface chromatic aberration of TA1 is larger. The mechanical properties of TA1 are the best. The tensile strength and yield strength of rolling are 325.19MPa and 271.17MPa, respectively, and the lateral direction is 329.19MPa and The roughness of 303.15MPa, GR1 and GR2 is slightly lower than that of TA1. The black area on the surface of TA1 is loose and the oxygen content is high. The pole figure of GR1, GR2 and TA1 are obtained. Keywords: Cold-rolled titanium sheets; Chromatic aberration; Mechanical properties; SEM; Texture

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Section: Introductionmentioning

confidence: 99%

Effect of Preparation Process on Surface Quality and Microstructure of Titanium Sheet

Zhang

Dong

et al. 2019

MSF

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Application of Waste Dumping Technology in Foundation Construction at Home and Abroad

Abstract: This thesis analyzed the technical characteristics and equipment selection of several methods in realizing the mechanization of waste dumping of deep well foundation, and proposed the development direction of waste dumping machines in our country.

Cited by 1 publication

References 2 publications

Effect of Preparation Process on Surface Quality and Microstructure of Titanium Sheet

Effect of Preparation Process on Surface Quality and Microstructure of Titanium Sheet

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