Selective laser sintering of inkjetprinted silver ...Jul 10, 2018 · The laser sintering was carried out by using a galvanometric scanning mirror system with a continuous wave (CW) fiber laser operating at 1064 .
ULTRAHIGHMOLECULARWEIGHT POLYOLEFIN PROPPANTS1. 1.15. (canceled) 16. A method for treating a geological subterranean formation penetrated by a wellbore, the method comprising pumping or injecting into the wellbore a plurality of particles, said particles comprising an ultrahighmolecularweight polyolefin, wherein the ultrahighmolecularweight polyolefin has a viscosity average molecular weight in a range from ×10 6 to 12×10 6 g ...
Selective Laser Sintering of ResinCoated Sands—Part I ...Selective laser sintering of precoated sands is a process utilized to produce molds and cores for rapid casting by adding sand layer by layer and heating it using a laser beam.
Question of the Week: What are the Benefits of Using ...Proppants are hard microspheres that are injected into well bores to "prop" open rock fissures, allowing oil and natural gas to flow out. While frac sand is the most commonly used proppant, ceramic proppants offer a tailored solution in demanding drilling settings.
Optimization design of lowdensity and highstrength ...Sep 14, 2020 · Ceramic proppants were prepared by pelleting, drying, screening, and sintering with lowgrade bauxite and feldspar as raw materials, both of which were produced from the Yangquan Changqing Company in Shanxi Province, China. The average size of the raw materials was mm (300 mesh), and the chemical compositions are presented in Table 1 ...
Bluesint PA 12 | Laser Sintering | MaterialiseLaser Sintering is a laserbased technology that uses solid powder materials, typically plastics. A computercontrolled laser beam selectively binds together particles in the powder bed, by raising the powder temperature above the glass transition point after which adjacent particles flow together.
Forge Labs | Selective Laser Sintering (SLS)Selective Laser Sintering (SLS) is an additive manufacturing process that uses powdered thermoplastic polymers. Layers are fused together using a laser that selectively sinters the particles of the powder and binds it together to create a solid structure. SLS offers fantastic throughput with its unique ability to nest thousands of parts within ...
Process for manufacturing hollow fusedsilica insulator ...Jan 01, 2001 · Hollow proppants of the present invention have been fabried by spray drying, followed by sintering in order to obtain a dense case and a hollow core. These proppants generally have high sphericity and roundness (Krumbein sphericity and roundness greater than ), have diameters on average between 2250 and 125 ., depending on proppant ...
USA1An apparatus and method sinters or partially sinters green pellets in a selected temperature range to make proppant particles as the green pellets pass through a first central portion of the first vortex gas flow and exit the second end of the first cylindrical vessel and/or pass through a second central portion of the second vortex flow and exit the fourth end of the second cylindrical vessel.
Laser SinteringJul 08, 2016 · Direct Metal Laser Sintering – or DMLS for short – is a game changer when to comes to direct 3D of metals. To create your 3D print, a laser in the printer melts the powder together. Laser Sintering 63. and Proto Labs Present Free Webinar on September 27!
SLS 3D Selective Laser Sintering (SLS) is an industrial 3D process ideal for manufacturing enduse parts. In SLS, a laser selectively sinters polymer powder particles, fusing them together and building a part layerbylayer. SLS produces functional plastic parts with isotropic mechanical properties that can be used for detailed prototyping or ...
Recycling of spent Cubased oxygen carriers into high ...Dec 15, 2017 · One of the important findings of this study is the fact that using spent OC (after acid leaching) for the production of ultrahighstrength ceramic proppants can be even more economical than using pure αAl 2 O 3 because of a shorter milling time (1 .
Selective Laser SinteringSelective Laser Sintering. Selective Laser Sintering (SLS) is a type of Powder Bed Fusion (PBF) wherein a bed of powder polymer, resin or metal is targeted partially (sintering) or fully (melting) by a highpower directional heating source such as laser that result to a solidified layer of fused powder [70]. From: Additive Manufacturing, 2018.
International Journal of Applied Ceramic Technology: Vol ...Jun 03, 2019 · Effects of sintering temperature on microstructure, properties, and crushing behavior of ceramic proppants Haiqiang Ma, Yuming Tian, Guomin Li, Pages:
HP Jet Fusion vs. Laser SinteringLaser sintering has been on the market for more than 30 years. It was initially developed by Carl R. Deckard in the mid1980s; he founded the company DTM Corp. (Desktop Manufacturing Corporation), which marketed the world's first laser sintering machine ('Sinterstation 2000') in 1992. That company was finally sold to the industry giant, 3D Systems, in 2001, for 45 million USD.
Additive manufacturing technology (direct metal laser ...Purpose: This article describes the preliminary findings of the mechanical properties of functionally graded titanium with controlled distribution of porosity and a reduced Young's modulus on the basis of a computeraided design (CAD) file, using the rapidprototyping, direct metal laser sintering (DMLS) technique. Materials and methods: Sixty specimens of Ti6Al4V were created using a DMLS ...
Sintered Bauxite Proppants | Products Suppliers ...Products/Services for Sintered Bauxite Proppants. Proppants (93 companies) ...resin coated sand) or PRCS (precured resin coated sand). Alternate proppant components include ceramics made from sintered bauxite or small metal beads. Most fracking or frac .
Machine learningbased microstructure prediction during ...May 21, 2021 · During a typical laser sintering experiments, alumina paste is casted on a fused silica substrate, using doctor's blade, with a thickness of about 500 μm.
eBook: Designing for DIrect Metal Laser Sintering (DMLS)Direct metal laser sintering (DMLS) is a metal 3D technology that builds prototype and production metal parts from a CAD file using a laser to selectively fuse a fine metal powder in either stainless steel or aluminum materials. A DMLS machine is capable of producing highly complex features and allinone assemblies using metal materials that would be difficult to achieve with ...
International Journal of Applied Ceramic Technology: Vol ...Apr 12, 2020 · Passive filler loaded polysilazanederived glass/ceramic coating system applied to AISI 441 stainless steel, part 1: Processing and characterization. Ivana Petríková, Milan Parchovianský, Peter Švančárek, Mateus Lenz Leite, Günter Motz, Dušan Galusek., Pages: . First Published: 04 November 2019. Abstract.
Plastic laser sintering SLS® 3D printers | Prodways FRMore about Laser sintering technology. P1000 Series. AFFORDABLE INDUSTRIAL PLASTIC 3D PRINTER. The ProMaker P1000 is an affordable industrial plastic 3D printer providing a large build platform to make industrial production and flexibility accessible to a larger range of professional users for new appliions.
Selective Laser Sintering Equipment Market Analysis ...Sep 08, 2021 · Selective Laser Sintering Equipment Market – Introduction. Selective Laser Sintering (SLS) is a form of Powder Bed Fusion (PBF), in which a base of .
Why you won't see a laser sintering 3D printer on your ...Apr 25, 2014 · Patents have also begun to expire for selective laser sintering 3D , which uses a laser to seal powder together into a 3D object. An SLS printed object is pulled out of its powder bed at the Shapeways factory in New York. Photo by Signe Brewster. Quartz's Christopher Mims suggested last year that key patent expirations in the first ...
WOA2Ceramic inks formulated for additive formation of proppants are provided, as well as methods of manufacturing such ink and ink systems including such ink. The proppant formed can contain a proppant core, a proppant shell, a proppant outer coating or any combination thereof. Additive methods for forming proppants are also provided. The ceramic ink can be applied dropwise, linearly, in a planar ...
Ceramic Proppants: A Specialized Alternative to Frac SandProppants are typically between 8 and 140 mesh and it is not uncommon to use multiple sizes at a given well.¹. Drying. Once agglomerated, pellets are dried to reduce the moisture content of the material. This is typically carried out in a rotary dryer or other type of industrial drying system. Pellets are classified via screening. Sintering