Vibration analysis of noncontact calcium carbonate ultrasonic reducer
Investigation of ultrasonication and/or mechanical stirring on the
2021年9月15日 Results reveals that these disturbing ways play a significant role on the CC crystallization process and can stabilize the amorphous calcium carbonate (ACC) phase for 2023年3月27日 Ultrasonic vibration mixing molding can effectively reduce the porosity and pore size of carbonated cement paste, making the pore distribution of cement paste more uniform Research on Influences of Ultrasonic Vibration Agitation Stirring 2011年5月1日 Results of the experiment demonstrate that nonlinear ultrasonic parameters of longitudinal ultrasonic waves with high frequencies (75 kHz, 100 kHz) exhibit a better Carbonation Assessment in Concrete by Nonlinear Ultrasound2022年4月7日 Research shows that ultrasonic vibratory stirring can effectively increase CO2 absorption by cement slurry However, with the increase in CO2 absorption, the fluidity of Influences of CO2 Absorption under Ultrasonic Vibration and
(PDF) The effect of ultrasonication on calcium carbonate
2014年9月1日 Calcium carbonate crystals synthesized with and without ultrasound were compared Xray diffraction (XRD) analysis showed that calcium carbonate obtained in the 2012年6月28日 A systematic technique has been developed to determine antiscaling efficiency and dissolution capacity for calcium carbonate in oilfield brines under various ultrasonic Determination of Antiscaling Efficiency and Dissolution Capacity In this paper, in order to understand the underlying principles that govern friction modulation by intermittent contact, numerical models based on finite element (FE) analysis and also a Friction Reduction through Ultrasonic Vibration Part 1: Modelling 2022年5月4日 In this article, we proposed a noncontact testing scheme for micrometer to submicrometer level ultrasonic vibration mainly generated by laser ultrasound upon the novel Noncontact measurement of submicrometer ultrasonic vibration
Noncontact vibration analysis using specklebased techniques
In this paper the vibration measurement without contact using two methods based on speckle pattern s has been experimentally verified by two different methods: direct generation of the 2015年1月5日 Ultrasonic technique was applied to remove the scaling compound CaCO3 as a pretreatment method in desalination process Supersaturated solution of calcium carbonate was treated with an ultrasonic (PDF) Ultrasonic Crystallization of Calcium Carbonate in 2023年1月6日 In Section 3, the nonrandom vibration analysis model of RV reducer is established In Section 4, the nonrandom vibration analysis method of RV reducer is derived and embodied with a sun gear In Section 5, the nonrandom vibration analysis of the core components of RV reducer is carried out In Section 6, conclusions are drawnNonrandom vibration analysis of rotate vector reducerIn this study, a vibration system, composed of a boltclamped Langevin transducer and a pipe, was employed to experimentally study the possibility of fouling removal In the experiment, a flexural vibration was excited in a pipe containing fouling using ultrasonic waves When the pipe was made to vibrate, with calcium carbonate or starch used Removal of Pipe Fouling Inside Pipes Using Ultrasonic Waves J
Corrosion resistance of a superhydrophobic calcium carbonate
2023年2月1日 A superhydrophobic anticorrosive CaCO 3 coating was prepared on MgNd alloy by ultrasoundassisted chemical conversion Results show that the prepared coating consists of an outer durianpeel like CaCO 3 layer and a compact inner (Ca, Mg)CO 3 layer Ultrasound treatment enhances the homogeneity and decreases the size of CaCO 3 particles in coating, 2021年7月15日 21 Materials and reagents The long bones of bovines were purchased from the vegetable market of Northwest AF University NaOH, hydrochloric acid, nitric acid, calcium carbonate and EDTANa 2 (analytically pure) were all purchased from Sinopharm Chemical Reagent Co, Ltd The serum ALP kit, serum TRAP kit, serum calcium kit and phosphorus kit Ultrasoundassisted preparation of calcium malate and its 2023年3月4日 To fulfil early diagnostics, this paper built up an RV reducer test rig and investigated the diagnosis of abnormal engagement between sun gear and planet gear using vibration analysis Firstly, a misalignment fault of input shaft and sun gear bearing clearance fault were carried out on the RV reducer test rig, then the vibration signals of the RV reducer were Fault Diagnosis of RV Reducers Used in Industrial Robots Based 2004年12月5日 At extreme filler concentrations of 40%, maximum weld strength decreased to 18, 10 and 6 Nmm À2 for calcium carbonate, mica and talc, while unfilled PP achieved 23 Nmm À2 196 Reduced seal Effects of calcium carbonate, talc, mica, and glassfiber fillers on
Ultrasonicassisted production of precipitated calcium carbonate
2021年4月1日 This study aimed to investigate the effect of ultrasonic application on the production of precipitated calcium carbonate (PCC) particles from desulfurization gypsum via direct mineral carbonation This paper aims to reveal the RV reducer vibration characteristics under cycloid gear and pinwheel localized fault conditions To this end, Dynamic modelling and contact analysis of bearingcycloidpinwheel transmission mechanisms used in joint rotate vector reducers Mechanism and Machine Theory, 137 (2019), pp 432458Dynamic modeling and vibration analysis for fault diagnosis of To study the contact mechanical characteristics of flexible components such as flexible bearing and flexspline in harmonic gear reducer, the contact mechanical model of flexible bearing, vibration differential equation of flexspline, and finite element model of each component in harmonic gear reducer were establishedAnalysis of Contact Mechanical Characteristics of Flexible Parts in 2018年11月10日 Inclusion of hybrid fiber in cementitious composites could restrict the growth of cracks at different stages and improve the mechanical properties of concrete, and adding calcium carbonate (CaCO 3) whisker would further improve the mechanical properties of cementitious compositesNevertheless, no attention has been paid to the effects of steel polyvinyl alcohol Influence of calcium carbonate whisker and polyvinyl alcohol
Nonrandom vibration analysis of rotate vector reducer
Huang, A study on loaded tooth contact analysis of a cycloid planetary gear reducer considering friction and bearing roller stiffness, J Adv Mech Des Syst Manuf, № 11, с 年9月1日 The attachment of calcium carbonate crystals can be reduced through hydrophobic treatment on concrete base surfaces and PVC pipe walls with protective coating [5,6]; generation of crystals can be (PDF) The effect of ultrasonication on calcium 2019年1月25日 The FEM/BEM method is the prevailing method applied to the numerical analysis for the reducer vibration and noise Abbes et al 4 adopted structuralacoustic coupling method to analyze acoustic radiation of the simple gearbox structure under the action of timevarying stiffness excitationVibration and noise characteristics of a gear reducer under 2020年9月1日 This study aimed to evaluate the combined effects of eggshell extract and ultrasonic irradiation on the polymorphic transformation of calcium carbonate (CaCO 3)In this context, XRD, Raman spectroscopy, SEM, AFM, TGAFTIR, BET, and zeta potential analysis were used to identify and characterize the different polymorphs of CaCO 3 obtained in the Ultrasonicassisted eggshell extractmediated polymorphic
Use of Non‐Matrix Matched Reference Materials for the
2021年9月1日 Request PDF Use of Non‐Matrix Matched Reference Materials for the Accurate Analysis of Calcium Carbonate by LA‐ICP‐MS Advances in laser ablation‐inductively coupled plasma‐mass Vibration has been and still is a persistent problem to negate the transmission accuracy and service life of rotate vector (RV) reducer, and vibration analysis remains a challenge in industry It is attributed to the inherent structural characteristics of RV reducer Acquisition of experimental data on core components is not straightforward Thus, the probabilitybased random vibration Nonrandom vibration analysis of rotate vector reducer2004年9月1日 Supersaturated solution of calcium carbonate ([Ca 2+]=12 mmol/L, [HCO 3 −]=32 mmol/L, pH=88, T =30±05 °C), a scale forming component, was irradiated by an ultrasonic homogenizer (24 kHz, 15–250 W/cm 2) to study the factors that affect its precipitation rateThe factors of (1) depth of horn immersion, (2) ultrasonic intensity and horn tip size and Precipitation of calcium carbonate by ultrasonic irradiation2019年9月7日 According to Fig 1, the coin is replaced by a rotating gear 1 with p 1 numbers of permanent magnets around the nutation disk And the desktop is replaced by a fixed gear 2 containing p 2 numbers of permanent magnets around There is a constant nutation angle θ between the axis of the nutation disk and the axis of the gear 2 Then a singlestage non Transmission Design and Experimental Research of a Noncontact
Effect of temperature on the contact angle on calcium carbonate
Here, we have evaluated the partial replacement of Silica by two types of calcium carbonate into hybrid natural rubber composites, untreated ultrafine calcium carbonate and with ultrafine 2022年11月1日 Research on Transient Torsional Vibration Test of Harmonic Reducer Tianhao Xu 1, Jing Tan 1, Dishan Huang 1, Tong Tong 2 and Jingjun Gu 2 Published under licence by IOP Publishing Ltd Journal of Physics: Conference Series, Volume 2365, 2022 3rd International Conference on Internet of Things, Artificial Intelligence and Mechanical Automation (IoTAIMA Research on Transient Torsional Vibration Test of Harmonic Reducer2013年6月1日 The earlyage hydration of a number of calcium aluminate cement pastes and mortar materials was investigated using compressive strength and ultrasonic throughtransmission pressive strength of calcium aluminate mortar determined 2017年5月1日 Moreover, peaks at 2935 and 2900 cm 1 associated with CH stretching vibration, peaks at 1420 and 1320 cm 1 related to methyl group CH stretching vibration, peaks located at 1090, 1044, 843 and Facile and costeffective preparation of PVA/modified calcium carbonate
Influence of calcium carbonate whisker and polyvinyl alcohol
2018年11月10日 Inclusion of hybrid fiber in cementitious composites could restrict the growth of cracks at different stages and improve the mechanical properties of concrete, and adding calcium carbonate (CaCO 3) whisker would further improve the mechanical properties of cementitious compositesNevertheless, no attention has been paid to the effects of steel polyvinyl alcohol Vibration has been and still is a persistent problem to negate the transmission accuracy and service life of rotate vector (RV) reducer, and vibration analysis remains a challenge in industry It is attributed to the inherent structural characteristics of RV reducer Acquisition of experimental data on core components is not straightforwardNonrandom Vibration Analysis of Rotate Vector Reducer2015年8月3日 Ultrasonic technique was applied to remove the scaling compound CaCO 3 as a pretreatment method in desalination process Supersaturated solution of calcium carbonate was treated with an ultrasonic probe to precipitate CaCO 3, followed by filtration to remove the precipitates The fundamentals of nucleation, growth, crystal form and morphology of CaCO 3 Ultrasonic Crystallization of Calcium Carbonate in Presence of 2020年4月1日 Through discussion and analysis, it can be known that the micro dynamic mechanism of removing inorganic scale plug by highpower ultrasonic treatment includes inorganic scale body crushing, ultrasonic cavitation, ultrasonic friction, ultrasonic peristaltic transport operation and ultrasonic fracturemaking and permeability increasing effectStudy on removing calcium carbonate plug from near wellbore
Contact angle on calcium carbonate products obtained in the (a)
Download scientific diagram Contact angle on calcium carbonate products obtained in the (a) absence and (b) presence of an organic substrate from publication: Synthesis and Characterization of 2004年8月11日 Supersaturated solution of calcium carbonate ([Ca2+] = 12 mmol/L, [HCO3] = 32 mmol/L, pH = 88, T = 30 +/ 05 degrees C), a scale forming component, was irradiated by an ultrasonic homogenizer (24 kHz, 15250 W/cm2) to study the factors that affect its precipitation rate The factors of (1) depth of horn immersion, (2) ultrasonic intensity and horn tip size and Precipitation of calcium carbonate by ultrasonic irradiation 2017年2月15日 It is well known that calcium carbonate (CaCO 3) is highly abundant material in the earth's crustCaCO 3 is used in many fields as a filler such as a catalysis, electronics, medicine, pigments, rubbers, water and wastewater treatment, cosmetics and paper Calcium carbonate, which has good biocompatibility and suitable biodegradation rate it can be used in Investigating the effect of ultrasonic irradiation on synthesis of 2015年1月5日 Ultrasonic technique was applied to remove the scaling compound CaCO3 as a pretreatment method in desalination process Supersaturated solution of calcium carbonate was treated with an ultrasonic (PDF) Ultrasonic Crystallization of Calcium Carbonate in
Nonrandom vibration analysis of rotate vector reducer
2023年1月6日 In Section 3, the nonrandom vibration analysis model of RV reducer is established In Section 4, the nonrandom vibration analysis method of RV reducer is derived and embodied with a sun gear In Section 5, the nonrandom vibration analysis of the core components of RV reducer is carried out In Section 6, conclusions are drawnIn this study, a vibration system, composed of a boltclamped Langevin transducer and a pipe, was employed to experimentally study the possibility of fouling removal In the experiment, a flexural vibration was excited in a pipe containing fouling using ultrasonic waves When the pipe was made to vibrate, with calcium carbonate or starch used Removal of Pipe Fouling Inside Pipes Using Ultrasonic Waves J 2023年2月1日 A superhydrophobic anticorrosive CaCO 3 coating was prepared on MgNd alloy by ultrasoundassisted chemical conversion Results show that the prepared coating consists of an outer durianpeel like CaCO 3 layer and a compact inner (Ca, Mg)CO 3 layer Ultrasound treatment enhances the homogeneity and decreases the size of CaCO 3 particles in coating, Corrosion resistance of a superhydrophobic calcium carbonate 2021年7月15日 21 Materials and reagents The long bones of bovines were purchased from the vegetable market of Northwest AF University NaOH, hydrochloric acid, nitric acid, calcium carbonate and EDTANa 2 (analytically pure) were all purchased from Sinopharm Chemical Reagent Co, Ltd The serum ALP kit, serum TRAP kit, serum calcium kit and phosphorus kit Ultrasoundassisted preparation of calcium malate and its
Fault Diagnosis of RV Reducers Used in Industrial Robots Based
2023年3月4日 To fulfil early diagnostics, this paper built up an RV reducer test rig and investigated the diagnosis of abnormal engagement between sun gear and planet gear using vibration analysis Firstly, a misalignment fault of input shaft and sun gear bearing clearance fault were carried out on the RV reducer test rig, then the vibration signals of the RV reducer were 2004年12月5日 At extreme filler concentrations of 40%, maximum weld strength decreased to 18, 10 and 6 Nmm À2 for calcium carbonate, mica and talc, while unfilled PP achieved 23 Nmm À2 196 Reduced seal Effects of calcium carbonate, talc, mica, and glassfiber fillers on 2021年4月1日 This study aimed to investigate the effect of ultrasonic application on the production of precipitated calcium carbonate (PCC) particles from desulfurization gypsum via direct mineral carbonation Ultrasonicassisted production of precipitated calcium carbonate This paper aims to reveal the RV reducer vibration characteristics under cycloid gear and pinwheel localized fault conditions To this end, Dynamic modelling and contact analysis of bearingcycloidpinwheel transmission mechanisms used in joint rotate vector reducers Mechanism and Machine Theory, 137 (2019), pp 432458Dynamic modeling and vibration analysis for fault diagnosis of
Analysis of Contact Mechanical Characteristics of Flexible Parts in
To study the contact mechanical characteristics of flexible components such as flexible bearing and flexspline in harmonic gear reducer, the contact mechanical model of flexible bearing, vibration differential equation of flexspline, and finite element model of each component in harmonic gear reducer were established