Results 41 to 50 of about 25,598 (261)

Calculation and Dressing Simulation of the Profile of the Form Grinding Wheel for Modified ZI Worms

open access: yesApplied Sciences
Form grinding is a precision machining method for the modified ZI worms, and the grinding accuracy mainly depends on the dressing accuracy of the grinding wheel’s profile.
Jianxin Su, Jiewei Xu
doaj   +1 more source

Calculating the profile of intermittent grinding wheel for the sharpening teeth of the broach

open access: yesMATEC Web of Conferences, 2018
The article shows that during the grinding of complex profile blades of metal cutting tools from tool steels, unfavorable thermodynamic conditions are created in the cutting zone and, as a result, grinding burns and cracks occur on the surface of the ...
Bogutsky Vladimir   +2 more
doaj   +1 more source

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

open access: yesAdvanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao   +6 more
wiley   +1 more source

Discussion on Rail Grinding Technology Development Situation and Grind Strategies

open access: yes机车电传动, 2020
The origin and development status of rail grinding technology at home and abroad was summarized, and the classification of rail grinding technology at current stage was introduced, focusing on the principles of making grinding strategy for curve and ...
Jijun GONG   +4 more
doaj  

Study of the Vibration Mechanism and Process Optimization for Abrasive Belt Grinding for a Blisk-Blade

open access: yesIEEE Access, 2019
The blisk is a key component of aero engines, and its surface processing quality directly affects the service performance of the aero engine. In using the new open belt grinding process, different degrees of vibration will occur, and they seriously ...
Y. Liu, Q. Li, Guijian Xiao, Y. Huang
doaj   +1 more source

Ionic Precursors Transformed Into Vinyl Acetate Synthesis Catalyst via Reaction‐Driven Restructuring

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates that a simple physical mixture of Pd and Au ionic precursors, KOAc promoter, and SiO2 support can transform into a highly active vinyl acetate synthesis catalyst through reaction‐driven restructuring. The results highlight reaction‐induced restructuring as an innovative and sustainable catalyst design strategy.
Byeong Jun Cha   +11 more
wiley   +1 more source

Research of Gear Form Grinding Burn based on Grinding Power Measurement and Barkhausen Nondestructive Test

open access: yesJixie chuandong, 2019
The strength,service life and reliability of gears are seriously affected by grinding burn. The gear form grinding experiments with different grinding parameters are carried out to measure the grinding power during the grinding process.
Jun Yi, Tan Jin, Mingdong Zhang
doaj  

Two-degree-of-freedom Grinding Wheel Profile Modification Manipulator and Its Error Compensation

open access: yesJixie chuandong, 2021
Compared with traditional grinding wheels,grooved grinding wheels have many advantages,but the error of grinding wheel profile has certain influence on machining accuracy.
Bin Yang, Xiaodi Huang, Yongcheng Huang
doaj  

Bio‐Inspired Biopolymeric Implantable Platform for Localized and Sustained Drug Delivery in Solid Tumor Treatment

open access: yesAdvanced Functional Materials, EarlyView.
A bio‐inspired biopolymeric implantable drug delivery platform enables localized and sustained release of 7‐ethyl‐10‐hydroxycamptothecin (SN‐38) in solid tumor treatment. The three‐dimensional (3D) structured crosslinked‐chitosan implants are fabricated via 3D‐printed molds and provide drug release over 3 months, significantly inhibiting tumor growth ...
Mercedes Lozano‐Garcia   +12 more
wiley   +1 more source

Research on Fine Operation of Rail Grinding Machine

open access: yes机车电传动, 2017
Rail profile grinding method and profile evaluation index were briefly introduced. Operation ability of the rail grinding machine was identified by test detection and theoretical derivation, and based on the practical application condition, fine ...
LIU Liangbin
doaj  

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