نتایج جستجو برای: abrasive particles

تعداد نتایج: 159498  

2010
Daniel E. Saloni Richard L. Lemaster Steven D. Jackson

Wood processing industries have continuously developed and improved technologies and processes to transform wood to obtain better final product quality and thus increase profits. Abrasive machining is one of the most important of these processes and therefore merits special attention and study. The objective of this work was to evaluate and demonstrate a process monitoring system for use in the...

2014
Ravi Gupta

274 Optimization of process parameter for surface finishing in abrasive flow finishing process Ravi Gupta (M.E) Asst. Prof.(Lovely Professional University) [email protected] , Abstract-Abrasive flow finishing is a non-conventional finishing process that is used for finishing of work piece which are difficult to finish by conventional method i.e. by honing, lapping and other machining operati...

Journal: : 2021

Finishing methods of machining superhard composite’s working elements based on cubic boron nitride BL group are considered. The results the microgeometry formation research cutting inserts’ surfaces during by free powders synthetic diamond, grinding wheels and a method vibro-magnetic-abrasive (VMAM) presented. It is shown that VMAM friction between abrasive particles result in microremoval mate...

Journal: :Japanese Journal of Applied Physics 2023

Abstract It has been difficult to detach smaller abrasive nano-particles from polished surfaces. In this article, we observed the behaviors of Ø50, 70, and 300 nm SiO 2 particles on a silica surface in an inevitable liquid nano-scale shear flow field as rinse cleaning by using evanescent light. These results implied that larger-sized were detached because quantitative moment acting particle is ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده علوم 1391

سنتز پلیمرهای کوئوردیناسیونی جدید از لیگاندهای 2-آمینو نیکوتینیک اسید، 2-کینولین کربوکسیلیک اسید، 2-پیرازین کربوکسیلیک اسید در ابعاد توده، با روش گرایان دمایی و با استفاده از شاخه ی جانبی انجام شده است، این پلیمرها توسط روش طیف سنجی ir شناسایی و پایداری گرمایی آن ها توسط تجزیه های وزن سنجی حرارتی (tga) و تجزیه ی گرمایی تفاضلی (dta) بررسی شده است. در ادامه، ساختار این ترکیبات توسط بلورنگاری پرتو...

Journal: :Journal of dental research 1979
H M Rootare J M Powers R G Craig

The relationship between the wear of three composite resins and the hardness of the abrasive was studied by a two-body abrasion test. The wear rates of the composites increased linearly with abrasive hardness from 530 to 2080 KHN. Measurement of the slope of the wear rate versus abrasive hardness over this range provided a sensitive method for ranking the composites.

1996

It may be true that some commercially available blast cleaning abrasives will reveal the presence of soluble chlorides or sulfate salts. Such abrasive contamination may originate from various sources. One potential source could be the raw material process water containing chloride or sulfate salts in solution. Contamination may also occur during the transportation of the abrasive along the seac...

2001
A. V. Gusakov A. P. Sinitsyn A. V. Markov A. A. Skomarovsky O. A. Sinitsyna A. G. Berlin N. V. Ankudimova

Study of cellulase adsorption on indigo particles and insoluble cellulose, as well as experiments on indigo interaction with immobilized amino acids together with theoretical analysis of three-dimensional structures of enzyme molecules, provided an evidence that certain cellulases, which have hydrophobic domains (clusters of closely located aromatic and non-polar residues) on their surface, may...

2013
S. Somasundaram C. Thiagarajan

Abrasive machining in general and grinding in particular are processes, which increase their importance with high demands on accuracy of surface finish. The chip thickness is an evaluating variable to describe the quality of ground surface as well as the performance of the overall grinding system. A significant characteristic that distinguishes ceramics from metals is their low fracture toughne...

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