Increasing the effectiveness of the fiber separating machine by abrasive blasting of the teeth of the saw cylinder discs

2021 ◽  
pp. 66-69
Author(s):  
Keyword(s):  
Silicon Carbide ◽  
Angle Of Attack ◽  
Black Silicon ◽  
Processing Quality ◽  
Pressure Angle ◽  
Processing Machine ◽  
Fiber Separation ◽  
Saw Blade ◽  
Abrasive Blasting

Abrasive blasting of the side surfaces of the teeth of saw blades of a cotton processing machine by particles of black silicon carbide is proposed. The required processing quality is achieved by the formation of an effective microrelief on the treated surface. Keywords: saw blade, abrasive blasting, fiber separation, roughness, pressure, angle of attack, fiber. [email protected]

scholarly journals Processing of teeth of saw blades of cotton processing machines with a stream of compressed air with abrasive particles

2021 ◽  
Vol 304 ◽  
pp. 03033
Author(s):  
Illarion Shin ◽  
Zokhir Shodmonqulov ◽  
Sakhrobjon Nazarov ◽  
Nigora Iskandarova
Keyword(s):  
Silicon Carbide ◽  
Wear Resistance ◽  
Surface Layer ◽  
Machining Process ◽  
Compressed Air ◽  
Black Silicon ◽  
Abrasive Particles ◽  
Fiber Separation ◽  
Deformation Hardening ◽  
Abrasive Blasting

In the article, it is presented materials on abrasive blasting of teeth of saw blades of cotton processing machines with particles of black silicon carbide. The micro-profile of the surface, characterized by the height and pitch of irregularities, after microcutting with abrasive particles is able to intensify the process of fiber separation by activating the tank surfaces of the teeth. This machining process is also accompanied by deformation hardening of the surface layer of the teeth, leading to an increase in the wear resistance and durability of the saws.

Edge Fracture Characteristics of Abrasive Grain

1998 ◽  
Vol 120 (4) ◽  
pp. 708-714 ◽  
Author(s):  
S. Hagiwara ◽  
T. Obikawa ◽  
E. Usui
Keyword(s):  
Silicon Carbide ◽  
Aluminum Oxide ◽  
Transition Probabilities ◽  
Black Silicon ◽  
Fracture Characteristics ◽  
Edge Fracture ◽  
Abrasive Grain ◽  
Single Grain ◽  
The Difference ◽  
Aluminum Oxide Single Crystal

Fracture onset coefficients and edge shape transition probabilities made it possible to evaluate the edge fracture characteristics of abrasive grain rationally. By grinding tests of single grain, these probabilities were determined for five materials: regular aluminum oxide, white aluminum oxide, single crystal aluminum oxide, green silicon carbide and black silicon carbide. Using these probabilities, transitions of edge shape distributions were calculated by applying the theory of Markov process to clarify the difference of abrasive materials in edge fracture. As a result, these probabilities proved to be an appropriate index for edge fracture characteristics of grinding grain materials.

Research on the Milling Toughness of Black Silicon Carbide and the Repeatability of the Testing Results

2011 ◽  
Vol 487 ◽  
pp. 225-228 ◽  
Author(s):  
M. Liu ◽  
S.J. Jiang
Keyword(s):  
Silicon Carbide ◽  
Test Methods ◽  
National Standard ◽  
Black Silicon ◽  
Milling Machine ◽  
Test Results ◽  
Testing Methods ◽  
Factors Affecting ◽  
Steel Balls ◽  
Ball Mass

The toughness of abrasive grits means their resistance against breaking under the effect of cutting forces. The commonly used test methods include single crystal static compressing, rolling crushing, mould pressing, as well as milling. In the national standard “GB/T 23538-2009 Conventional Abrasive Testing Methods for Toughness (ball mill method)”, it is stipulated that milling machine is to be used for the abrasive grits F8-F150 to determine their toughness. This method by milling includes testing steps as follows: take a certain amount of abrasive grits , together with steel balls of certain size and certain mass, into the ball milling machine rotating at a certain speed .When the specified total rotations are completed, measure the ratio of the unbroken grits to the total amount of the milled samples. This ratio is defined as the milling toughness of the abrasive grits. In this paper, the milling toughness of different sized black silicon carbide is tested according to the requirement of “GB /T 23538-2009”, and the repeatability of the testing results characterized by test standard deviation is discussed. The test results from different operators using different ball mass are compared and analyzed, and the factors affecting the milling toughness test results are researched. Some suggestions to improve the repeatability of the test results are given.

scholarly journals Double Layer Material Designed to Reduce Electromagnetic Radiation with Carbon Black, Silicon Carbide and Manganese Zinc Ferrite

2021 ◽  
Vol 13 ◽  
Author(s):  
Ariane Aparecida Teixeira de Souza ◽  
Nila Cecília de Faria Lopes Medeiros ◽  
Leonardo Iusuti de Medeiros ◽  
Gisele Aparecida Amaral-Labat ◽  
Matheus Carvalho Bispo ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Carbon Black ◽  
Electromagnetic Radiation ◽  
Double Layer ◽  
Zinc Ferrite ◽  
Black Silicon ◽  
Layer Material ◽  
Manganese Zinc ◽  
Manganese Zinc Ferrite

Grinding behavior of VP50IM steel using green and black silicon carbide compared to aluminum oxide wheel under different feed rates

2021 ◽  
Author(s):  
Andrigo Elisiario da Silva ◽  
Jorge Luiz Cuesta ◽  
José Claudio Lopes ◽  
Douglas Lyra de Moraes ◽  
Mateus Vinicius Garcia ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Aluminum Oxide ◽  
Black Silicon
Sign in / Sign up

Export Citation Format

Share Document