Development of special lubricant for the copper belt cold rolling

Huang, Fuchuan; Deng, Fukang; Li, Kangchun; Qin, Ke

doi:10.1108/ilt-09-2015-0126

Cited by 3 publications

(2 citation statements)

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“…Ferroelectric materials are materials that spontaneously polarize in two or more possible directions [7]. Pb(Zr,Ti)O 3 (lead titanate, PZT) is a ferroelectric material with high tensile strength, piezoelectric, dielectric and pyroelectric properties.…”

Section: Relevant Theories Of Pzt Ferroelectric Materialsmentioning

confidence: 99%

PZT-based Antiferroelectric Material Based on Building Roof Film Rolling Process and Preparation Method Thereof

2021

IJETC

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Antiferroelectric material is a kind of ferroelectric material, which has been widely used in electronic equipment and construction industry. It has always been a research hotspot in the field of material science. In practical applications, the two main factors affecting its energy storage are polarization intensity and breakdown electric field. Due to the large thickness, poor internal consistency and low compression capacity, the energy storage function has not been improved. Therefore, this paper focuses on PZT based antiferroelectric materials based on building roof rolling process. At the same time, the relevant theories and various preparation methods of PZT antiferroelectric materials are introduced in detail. Finally, the solid-state reaction method is used to prepare PZT based antiferroelectric materials. The electrical properties of PZT based antiferroelectric materials were also studied. The experimental results show that the phase transition temperature at 100Hz is close to the theoretical value of 550K, and the test indexes are close to the theoretical value of PZT based antiferroelectric materials.

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Section: Relevant Theories Of Pzt Ferroelectric Materialsmentioning

confidence: 99%

PZT-based Antiferroelectric Material Based on Building Roof Film Rolling Process and Preparation Method Thereof

2021

IJETC

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“…Mineral hydraulic oil was used in the latest research (Wenbin et al , 2012). Unfortunately, insufficient lubrication, fast temperature drop, and rapid oxidation of surface are associated with emulsion lubrication (Huang et al , 2016).…”

Section: Introductionmentioning

confidence: 99%

Preparation and tribological properties of a microemulsion for magnesium alloy warm rolling

Dong

Sun

Cheng

et al. 2019

ILT

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Purpose The purpose of this paper is to synthesize a microemulsion and investigate its tribological properties as lubricant. Magnesium alloy warm rolling experiments were conducted. Surface morphology was observed and wear form was summarized. The composition of surface residues was analyzed, which sheds light on the lubrication mechanism of microemulsion. Design/methodology/approach A microemulsion was prepared with a proper amount of oil, surfactant, cosurfactant, water and other additives for magnesium alloy strip warm rolling. Tribological properties, such as maximum non-seizure load (PB), friction coefficient (μ) and wear scar diameter (D) of the microemulsion were measured and compared with those of emulsion and rolling oil on an MR-10A four-ball tribotester. The extreme pressure anti-wear coefficients (O) were calculated and compared. Warm rolling experiments were carried out on a Ф 170/400 × 300 mm four-high rolling mill at 240°C to compare the finish rolling thickness and surface quality of rolled AZ31B magnesium alloy strip under four lubrication states, namely, no lubrication, rolling oil, microemulsion and emulsion. The surface morphology after warm rolling was observed with confocal laser scanning microscope and scanning electron microscope, respectively. The composition of surface residues was analyzed with energy dispersive spectrometry and X-Ray photoelectron spectroscopy. Findings Surface morphology indicated that pitting wear, adhesive wear and ploughing wear were three main forms of wear in magnesium alloy warm rolling. Microemulsion had excellent lubrication properties with less residual oil remaining. Two types of adsorption layers formed on magnesium alloy strip surface were responsible for lubrication properties. MgSO4 and magnesium stearate in the reaction layer played a key role in anti-wear and friction-reduction in warm rolling. Originality/value The study is original and gives valuable information on lubrication mechanism of microemulsion in warm rolling of magnesium alloy strips.

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