scholarly journals Engineering composite materials for the cotton processing industry

2021 ◽  
Vol 264 ◽  
pp. 05053
Author(s):  
Nodira Abed ◽  
Оlim Eshkobilov ◽  
Giyas Gulyamov ◽  
Malokhat Tuhtasheva
Keyword(s):  
Composite Materials ◽  
Friction And Wear ◽  
Experimental Studies ◽  
High Strength ◽  
Processing Industry ◽  
Wear Resistant ◽  
Tribotechnical Properties ◽  
Structural Composite ◽  
Working Bodies ◽  
Tribotechnical Characteristics

Experimental studies have been carried out to study the effect of various fillers on the physicomechanical and tribotechnical properties of the compositions, and the optimal filler contents have been established, which ensure the best properties of polyethylene, polypropylene, polystyrol and polyamide structural composite materials. The principle of design of shock-resistant, antifriction and antifriction-wear-resistant polyethylene, polypropylene, polystyrol and polyamide structural composite materials is proposed. Highly efficient structural composite materials for functional purposes have been developed on the basis of thermoplastic polymers and fillers of various structures and natures, which have sufficiently high strength and tribotechnical characteristics and have found application in the working bodies of cotton machines and mechanisms of the cotton processing industry operating under conditions of friction and wear.

scholarly journals Composite polypropylene polymer materials that work in contact with raw cotton

2021 ◽  
Vol 264 ◽  
pp. 05055
Author(s):  
Оlim Eshkobilov ◽  
Giyas Gulyamov
Keyword(s):  
Composite Materials ◽  
Contact Interaction ◽  
Coefficient Of Friction ◽  
Physical And Mechanical Properties ◽  
High Strength ◽  
Polymer Materials ◽  
Tribotechnical Properties ◽  
Structural Composite ◽  
The Coefficient Of Friction ◽  
Friction Temperature

Physicomechanical and tribotechnical properties of structural composite materials based on thermoplastic polymer and organomineral ingredients operating under friction and wear conditions during contact with pulp (raw cotton) have been investigated. The regularities of changes in the physical, mechanical and tribotechnical properties of structural composite materials during contact interaction with raw cotton were determined, the dependence of their properties on the type and content of graphite, mineral and fibrous fillers in structural composite materials was studied. It has been established that the nature and structure of fillers has a certain effect on the physical and mechanical properties of composite materials based on polypropylene. At the same time, fiber-filled compositions have the highest mechanical strength. It was also found that when mineral fillers are introduced into composite polymer materials, their coefficient of friction with raw cotton increases significantly, while the wear rate decreases, except for fillers with a plate structure (kaolin, talc), when used, a decrease in the coefficient of friction is observed. The introduction of carbon-graphite fillers into the composition of composite materials leads to a significant decrease in the coefficient of friction, temperature and static electricity charge in the friction zone with raw cotton. The introduction of fillers with a fibrous structure leads to a significant decrease in the rate of wear of the composites. It provides high strength and resistance of the material under thermomechanical action. Effective compositions of structural composite materials for work under conditions of contact interaction with fibrous mass have been developed, and their physical, mechanical and tribotechnical properties have been investigated.

Working bodies of disk harrows: technology of production and restoration

2016 ◽  
Vol 6 (1) ◽  
pp. 203-211 ◽  
Author(s):  
Шовкопляс ◽  
Aleksandr Shovkoplyas
Keyword(s):  
Heat Treatment ◽  
Composite Materials ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Cutting Edge ◽  
Chemical Heat Treatment ◽  
Chemical Heat ◽  
Wear Resistant ◽  
Working Bodies ◽  
Technology Of Production

With blunt disks above the permissible thickness of the blades removed and sharpened with the formation of the nominal geometry of the cutting edge. The diameter of the discs de-creases. When you restore a disk of the working bodies can also produce their hardening, using: hard and wear-resistant materials, chemical heat treatment (boriding), the hardening by a method of electrical discharge machining, the application of polymeric and composite materials, cladding wear tape, the hardening by rolling.

Tribotechnical properties of composite materials based on thermoplastic polymer and organomineral fillers working under contact interaction with cotton-fiber

2020 ◽  
Vol 5 ◽  
pp. 66-74
Author(s):  
S.S. Negmatov ◽  
◽  
N.S. Abed ◽  
G. Gulyamov ◽  
T.S. Khalimzhanov ◽  
...  
Keyword(s):  
Composite Materials ◽  
Wear Rate ◽  
Contact Interaction ◽  
Coefficient Of Friction ◽  
High Strength ◽  
Thermoplastic Polymer ◽  
Friction Zone ◽  
Tribotechnical Properties ◽  
The Coefficient Of Friction ◽  
Mineral Fillers

The tribotechnical properties of composite materials (CM) based on a thermoplastic polymer and organomineral fillers operating under conditions of contact interaction with pulp are investigated using the example of raw cotton. The regularities of changes in the coefficient of friction and the intensity of wear of composites during contact interaction with raw cotton have been determined, the dependences of the temperature and magnitude of the electrostatic charge in the polymer-cotton and composite-cotton friction zone on the type and content of organic-mineral fillers in the CM have been studied. It has been established that the introduction of carbon-graphite fillers into the CM composition leads to a significant decrease in the friction coefficient, temperature and static electricity charge in the friction zone with raw cotton. The introduction of mineral fillers into CMs noticeably increases their coefficient of friction with raw cotton, the temperature and charge of electrostatic electricity in the friction zone with a simultaneous decrease in the wear rate, with the exception of fillers with a lamellar structure (talc, kaolin), when used, a decrease in the coefficient of friction is observed. The introduction of fillers with a fibrous structure leads to a significant decrease in the wear rate of polymer CMs and provides high strength and durability of the material under thermomechanical action. Effective compositions of antifriction and wear-resistant polymeric CMs have been developed for work in conditions of contact interaction with raw cotton.

Antifriction Wear-Resistant Composite Materials and Details Made from them for Working Bodies of Cotton Machines and Mechanisms

2012 ◽  
Vol 616-618 ◽  
pp. 2005-2008 ◽  
Author(s):  
N.S. Abed Negmatova ◽  
S.S. Negmatov ◽  
G. Gulyamov ◽  
J.N. Negmatov
Keyword(s):  
Composite Materials ◽  
Polymer Materials ◽  
Composite Polymer ◽  
Wear Resistant ◽  
Working Bodies

We researched and developed the composite polymer materials and products from them, working in conjunction with raw-cotton. It is established that the production of friction pairs of working parts of machines (pegs) made of developed composite polymer materials increases their efficiency and durability to 2.0 -2.2 times.

Composite Polymer Materials and the Details Made of them for Cotton Machines and Mechanisms

2011 ◽  
Vol 413 ◽  
pp. 535-538
Author(s):  
Nodira Abed-Negmatova ◽  
Jakhongir Negmatov ◽  
Giyoz Gulyamov ◽  
Aziz Yuldashev ◽  
Sherzod Eminov ◽  
...  
Keyword(s):  
Composite Materials ◽  
Tribological Properties ◽  
High Strength ◽  
Polymer Materials ◽  
Composite Polymer ◽  
Polypropylene Composite ◽  
Wear Resistant ◽  
Mechanical And Tribological Properties ◽  
Experimental Researches

We have done experimental researches of study of impact of different fillers on physical, mechanical and tribological properties and found the optimal substance of fillers, which provides with best properties of polypropylene composite materials. We suggested the principle of construction of antifriction and antifriction-wear resistant polypropylene composite materials, which have high strength and tribological properties and used in cotton machines and mechanisms.

COMPARATIVE CHARACTERISTICS OF PHYSICAL AND MECHANICAL PROPERTIES OF COMPOSITE MATERIALS AND HIGH-STRENGTH STEEL 30FGSN2A

2020 ◽  
Author(s):  
I.R. Antypes ◽  
◽  
V.V. Zaitsev ◽  
Keyword(s):  
Composite Materials ◽  
High Strength Steel ◽  
Critical Stress ◽  
Physical And Mechanical Properties ◽  
High Strength ◽  
Aviation Industry ◽  
Specific Strength ◽  
Aircraft Landing ◽  
Carbon Plastics ◽  
Aircraft Landing Gear

Currently, the use of composite materials is increasingly used in various areas of the national economy, including the aviation industry. The materials of this article are devoted to the study of the use of composite materials for the manufacture of aircraft landing gear in comparison with the traditionally used brand of steel. As a result of the work carried out, it was found that the slope made of carbon fiber showed a critical stress twice as high as its design made of 30xgsn2a steel. In addition, carbon plastics are superior to high-strength steel in terms of specific strength, stiffness, and tensile strength.

AMPCOLOY 405

Alloy Digest ◽  
1962 ◽  
Vol 11 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Corrosion And Wear ◽  
Wear Resistant

Abstract Ampcoloy 405 is a high strength, ductile, corrosion and wear resistant copper alloy available in extruded solid bar form for gears, valve seats, marine hardware, etc. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-116. Producer or source: Ampco Metal Inc..

SWEBOR 400

Alloy Digest ◽  
2014 ◽  
Vol 63 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Tensile Properties ◽  
High Strength Steel ◽  
High Strength ◽  
Bend Strength ◽  
Great Strength ◽  
Wear Resistant

Abstract Swebor 400 (hardness 400 HBW) is a high-strength steel with good wear resistant qualities. This alloy is used to endure conditions of extra-heavy wear and when great strength and good weldability is required. This datasheet provides information on composition, hardness, tensile properties, and bend strength as well as fracture toughness. It also includes information on wear resistance as well as forming, machining, and joining. Filing Code: CS-181. Producer or source: Swebor Stål Svenska AB.

RUUKKI RAEX 300

Alloy Digest ◽  
2012 ◽  
Vol 61 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Shear Strength ◽  
Impact Toughness ◽  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
Structural Components ◽  
Wear Resistant

Abstract RUUKKI RAEX 300 (typical yield strength 900 MPa) is part of the Raex family of high-strength and wear-resistant steels with favorable hardness and impact toughness to extend life and decrease wear in structural components. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness. It also includes information on wear resistance as well as forming, machining, and joining. Filing Code: SA-643. Producer or source: Rautaruukki Corporation.

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