Effects of sintering temperature on microstructure and
Low density and high strength ceramic proppant was prepared by sintering high aluminium type low-grade bauxite and high iron type low-grade bauxite at the temperature range from 1300℃ to 1360℃. The phase composition and micromorphology of ceramic proppant were, respectively, characterized by X-ray diffraction (XRD) and …
Selective Laser Sintering (SLS)
A New Wave of Independent Manufacturing Starts Now. Rethink product development and take control of your own manufacturing. Configure your Fuse 1+ 30W setup today. Learn about selective laser sintering (SLS) 3D systems, materials, applications, and how SLS compares to other technologies on the market.
Low-temperature sintering of bauxite-based fracturing proppants …
One alternative to decrease the sintering temperature of ceramic proppants is the addition of sintering aid, including feldspar, 8 dolomite, 9 purple sands, 10 calcium oxide, and manganese dioxide.
Sintering mechanism of high-intensity and low …
The results showed that the proppants sintered at 1260°C for 2 h with a heating rate of 5°C min –1 under air atmosphere exhibited high crush resistance and low …
THE LOW TEMPERATURE PREPARATION OF ULTRA LOW-DENSITY CERAMIC PROPPANTS
Herein, the low-density cera mic proppants were prepared from the main materials of fly ash. and bauxite with MnO 2 and dolomite as the sintering additives, and sintered at a low. temperature ...
Guide to Selective Laser Sintering (SLS) 3D
Selective laser sintering is an additive manufacturing (AM) technology that uses a high-power laser to sinter small particles of polymer powder into a solid structure based on a 3D model.. SLS 3D has been a popular choice for engineers and manufacturers for decades. Low cost per part, high productivity, and established materials make the …
Preparation and characterization of high …
The results revealed that at the best sintering condition (1280 °C, holding for 60 min), and a mass ratio (ODCPRs: bauxite: MnO2 at 3:7:0.1), the well‐developed granular corundum …
A comprehensive review of ultralow-weight proppant technology …
Proppant plays a critical role in the exploitation of oil and gas, especially in the development of nonconventional oil and gas resources. Proppants are small spheres that have adequate strength to withstand high closure stresses to keep cracks open; therefore, hydrocarbon flows smoothly into the wellbore. However, traditional proppants …
Sintering parameters studies of ceramic …
In addition particle size analysis by laser diffraction was analyzed. This work presents studies intended to determine the manufacturing parameters of ceramic proppants fabricated by …
Determination of loamy resources impact on granulation …
Aim of this research was verification of the impact of natural loamy resources (aluminosilicates in powder form) mixed with binder on ceramic proppants quality. Utility of the clays was estimated by their particle size distribution (PSD by laser diffraction method) and thermal stability (thermogravimetry - TGA).
Selective Laser Sintering-Based 4D of Magnetism …
Components fabricated by four-dimensional (4D) hold the potential for applications in soft robotics because of their characteristics of responding to external stimuli. Grippers, being the common structures used in robotics, were fabricated by the selective laser sintering (SLS)-based 4D of magnetism-responsive materials and tested for …
Selective Laser Sintering
Selective laser sintering (SLS) technology (invented in the mid-1980s by an American businessman) is a rapid manufacturing technique, which uses high-power CO2 lasers to fuse particles together. The laser sinters powdered materials (metallic, ceramics, or polymer materials like white nylon powder).
Basic principle, progress, and prospects of coal gangue ceramic proppants
Second, the progress of research of coal gangue ceramic proppants is summarized from the perspective of additives, and the influence of different kinds of additives on the sintering temperature and performance of proppants is discussed. Lastly, the future prospects of coal gangue ceramic proppants are presented.
A comprehensive review on proppant technologies
It has been well documented in the API/ISO standard testing procedures. Laser diffraction technique is a new way to measure the particle size distributions. ... Proppants with a higher coefficient of restitution and a lower friction coefficient than other proppants will be transported deeper into the fracture. ... spraying process and …
A comprehensive review of ultralow-weight …
Ultralow-weight proppants will provide substantial flow paths with a considerably high propped surface area and remarkably reduce fine generation and …
Preparing high-strength and low-density proppants with oil …
• High-strength and low-density proppants were prepared from ODPR and RM. • The sintering conditions of ODPR-based proppants were optimized by RSM. • The sintering mechanism of lightweight proppants was studied. • The formed proppants can be a valuable material for shale gas development. This study aimed to assess the feasibility of …
Preparation and characterization of high …
Conclusion. In summary, this work explored a new research method for preparing high-performance proppants from ODCPRs, bauxite, and sintering …
Preparing high-strength and low-density proppants with oil …
The phase composition and microstructure of the proppants at different sintering temperatures were investigated by X-ray diffraction and scanning electron microscope. At the best sintering ...
Selective Laser Sintering (SLS) Overview | 3D Systems
Selective Laser Sintering (SLS) is a powder-based 3D technology that uses a laser to fuse material layers into a final part. The laser traces the pattern of each cross section of a 3D design onto a bed of powder. After one layer is built, the build platform lowers and another layer is built on top of the previous layer.
Sintering temperature dependence of low-cost, low …
Low-density bauxite-based ceramic proppants were prepared at sintering temperatures below 1300°C by adding solid wastes coal gangue and magnesium slag. The addition of solid wastes greatly decreases … Expand. 17. Save. Sintering mechanism of high-intensity and low-density ceramic proppants prepared by recycling of waste …
Ultimate guide to Selective Laser Sintering 3D
2- Get the Selective Laser Sintering 3D printer ready to print. If you have your own SLS 3D printer, an operator must get the printer ready; the parameters differ depending on the system. Most conventional SLS systems involve significant preparation, equipment, and …
Preparing high-strength and low-density proppants with oil …
DOI: 10.1016/j.fuel.2022.125777 Corpus ID: 251889937; Preparing high-strength and low-density proppants with oil-based drilling cuttings pyrolysis residues and red mud: Process optimization and sintering mechanism
proppant sintering laser
To determine the effects of sintering temperature, sintering time, and sintering rate on the physical–mechanical performance of proppants and provide a reasonable level range for the design of RSM, proppants were sintered at 1280–1360 °C at a heating rate of 1–9 °C·min −1 and maintained at the highest temperature for 0.5–2.5 h.
Microstructure and fracture mechanism of low density ceramic proppants …
Abstract. Solid wastes coal gangue and magnesium slag were added to prepare low density ceramic proppants at sintering temperatures below 1300 °C. The addition of solid wastes greatly decreases sintering temperature and preparation cost. The morphology and phase composition of the proppants were examined by scanning …
Effects of sintering temperature on microstructure and
Effects of sintering temperature on microstructure and properties of low-grade bauxite-based ceramic proppant. Donghai Ding, Yufei Fang, Guoqing Xiao, …
Preparing high-strength and low-density proppants with oil …
To determine the effects of sintering temperature, sintering time, and sintering rate on the physical–mechanical performance of proppants and provide a reasonable level range for the design of RSM, proppants were sintered at 1280–1360 °C at a heating rate of 1–9 °C·min −1 and maintained at the highest temperature for 0.5–2.5 h.
Low-temperature sintering of bauxite-based fracturing proppants …
Bauxite-based fracturing proppants with high strengths were prepared at sintering temperatures below 1200 °C via the addition of CaO and MnO 2.The effects of CaO and MnO 2 addition on the sintering behavior and the crush resistance of the bauxite-based proppants were investigated. The addition of CaO and MnO 2 promoted the …
Preparation and characterization of low-density …
The proppants sintered at 1400 °C have the best performance with 1.28 g/cm 3 of bulk density, 2.84 g/cm 3 of apparent density and 7.89% of breakage ratio …
Proppants Selection Guide: Types, Features, Applications
Proppants Information. Proppants are solid materials, such as sand, used to maintain cracks formed throughout well stimulation via hydraulic fracturing (known as fracking) in shale gas or oil drilling operations. The name derives from propping open the created cracks, thereby improving the flow rate of hydrocarbon resources into the wells.
Effects of CaO addition on the properties and …
crushing, granulating, drying and sintering, high performance ceramic proppant in line with industry standards were successfully prepared. Moreover, the eects of CaO content on the bulk density and breakage ratio for low-grade bauxite-based ceramic proppant with dierent sintering temperatures were systematically explored. The phase composition,
