scholarly journals Changes of Indicators in Fiber and Cotton Seed Quality in Separating Cut Fractions on Cotton Fiber Mass

2020 ◽  
Vol 8 (6) ◽  
pp. 1245-1248
Keyword(s):  
Mechanical Properties ◽  
Cotton Fiber ◽  
Cotton Seed ◽  
Seed Quality ◽  
Physical And Mechanical Properties ◽  
High Quality ◽  
Average Mass ◽  
Mass Fractionation ◽  
Fourth Type ◽  
Modal Mass

This article describes the fourth type of medium-fiber Hampor, currently widely used in the Surkhandarya region, the lengnth is about 160-170 mg, 171-180 mg, 181-190 mg, 191-200 mg, 201-205 mg, 206-210 mg was divided into fractions by mass of fibers, the LKM equipment was cleaned of fine and dirty particles in the laboratory of the ginnery, DL-10 was isolated from the fiber on the ginning equipment, and the physical and mechanical properties of the seeds, the strength of the breakage, the modal mass, the length of the staple mass, the average mass, the ripening, the length and the squared irregularity were determined by the equipment. The optimal option for fiberglass mass fractionation was proposed to obtain high quality products.

scholarly journals STUDY OF PHYSICAL-MECHANICAL PROPERTIES OF CHEMICAL-THERMOMECHANICAL MASS FROM WOOD OF THE POPLING

2019 ◽  
pp. 305-310
Author(s):  
Ivan Nikolaevich Koverninskij
Keyword(s):  
Mechanical Properties ◽  
High Efficiency ◽  
Physical And Mechanical Properties ◽  
Thermomechanical Pulp ◽  
Poplar Wood ◽  
High Quality ◽  
Base Paper ◽  
Pulp Paper ◽  
Corrugated Cardboard ◽  
Chinese Company

The article provides material on the study of chemical-thermomechanical pulp (CTMM) from poplar wood, produced by the Chinese company WeifangderuibioloDgical TECHNOLODGY CO., LTD. As a result of the research, it was established that CTMP of poplar wood has the ability to be easily milled with a significant increase (by 30–80%) of physical and mechanical properties. The interval of the possible degree of grinding, in which the mass can be used with the greatest efficiency, is recommended 30–50 °SR. CTMM in unbleached form is a high-quality primary semi-finished fibrous material that can be effectively used in combination with waste fiber for the production of corrugated paper and cardboard for flat layers of corrugated cardboard (test liner). Adding weight to the composition is appropriate in the range of 20–50%. CTMM in bleached form is a high-quality primary fiber for the production of base paper for various sanitary purposes. Compositions with bleached cellulose, in which cellulose should be added within 15–20%, will differ in high efficiency in imparting properties to paper. When using coniferous sapwood (pine, larch), a characteristic large-tonnage waste of Russian enterprises, an increase in the mechanical properties of the mass is expected by 20–30%. Such a mass will be a significant factor in the development of the production of containerboard, sanitary and hygienic, as well as other types of paper and cardboard. The CTMM technology offered by the Chinese company WeifangderuibioloDgical TECHNOLODGY CO., LTD is recommended for use by Russian timber merchants. In terms of its importance, the technology is capable of solving the tasks of developing the production of pulp, paper and cardboard, provided for in the Strategy for the Development of the Forest Complex of Russia until 2030.

Lightweight Artificial Aggregate Based on Fly Ash for New Rehabilitation Materials

2013 ◽  
Vol 688 ◽  
pp. 146-151 ◽  
Author(s):  
Pavel Sokol ◽  
Rostislav Drochytka ◽  
Vit Cerný ◽  
Ester Helanová
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Power Plants ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Social Pressure ◽  
High Quality ◽  
Lightweight Materials ◽  
The Past ◽  
Rehabilitation Work

During rehabilitation work are often strict requirements on the use of high quality lightweight materials, including aggregate. Due the constantly increasing social pressure on the optimal use of secondary raw materials is therefore most appropriate to exploit the potential of fly ash as mineral residue from the combustion of ground coal in power plants. Especially filter fly ash has proven to be an adequate substitute for traditional materials in the past. This article deals with the evaluation of physical and mechanical properties of cold-consolidated pellets based on conventional and fluidized fly ash with various cement addition.

scholarly journals Theoretical Substantiation of the Angle of Mounting a Flat Ridge-Forming Disc of a Row Crop Cultivator

2021 ◽  
Vol 346 ◽  
pp. 03102
Author(s):  
Evgeny Zykin ◽  
Vladimir Kurdyumov ◽  
Svetlana Lazutkina
Keyword(s):  
Mechanical Properties ◽  
Angle Of Attack ◽  
Soil Layer ◽  
Physical And Mechanical Properties ◽  
Acute Angle ◽  
High Quality ◽  
Crop Cultivation ◽  
Theoretical Substantiation ◽  
Lower Base ◽  
Row Crop

The authors have developed a row-crop cultivator equipped with a ridge former, which allows performing high-quality operations of row crop cultivation in one pass. The inter row cultivation is carried out with a row-crop cultivator, on each section of which two ridge formers are mounted so that their flat discs are directed towards the row of plants at an acute angle, and the extreme edges of the wings of the V-shaped sweeps are located at the lower base of the soil ridge. When the row-crop cultivator moves, the V-shaped sweeps loosen the soil to the required depth and cut the weeds, and the flat discs move the soil layer coming off the wings of the V-shaped sweeps towards the rows of plants, hilling them and burying the weeds. In the presented article, the authors theoretically substantiate the angle of attack of a flat disc for burying weeds with a layer of soil of the required thickness. It was found that the angle of attack depends on the radius of the flat disc and the depth of its movement in the soil, the initial dimensions of the ridge and the physical and mechanical properties of the soil.

scholarly journals Influence of Separating Fibrous Seed Mass to Fractions to Quality

2020 ◽  
Vol 9 (1) ◽  
pp. 200-202
Keyword(s):  
Mechanical Properties ◽  
Shear Strength ◽  
Linear Density ◽  
Seed Mass ◽  
Physical And Mechanical Properties ◽  
Small Scale ◽  
High Quality ◽  
Elongation At Break ◽  
Modern Equipment ◽  
Quadratic Inequality

This article describes the fourth type of medium-fiber Hampor, currently widely used in the Surkhandarya region, the lengnth is about 160-170 mg, 171-180 mg, 181-190 mg, 191-200 mg, 201-205 mg, 206-210 mg was divided into fractions by mass of fibers, the LKM equipment was cleaned of fine and dirty particles in the laboratory of the ginnery, DL-10 was isolated from the fiber on the ginning equipment, and the physical and mechanical properties of the seeds, and 20.0 texts were made from the cotton fiber at the “Sherli” small-scale spinning device at the “Pakhtasanoat Research Center” AC. Physical and mechanical properties of the yarn, i.e. quadratic inequality of linear density, quadratic inequality by the number of twists, quadratic inequality in strength, durability, comparative shear strength, elongation at break, elongation in discontinuity was identified with the help of modern equipment and the spinning plant was able to split fibers into fractions for the production of high quality yarn, optimal versions were proposed.

Evaluation of High-Quality Dolomite Aggregate for Asphalt Wearing Course

2017 ◽  
Author(s):  
Viktoras Vorobjovas ◽  
Ovidijus Šernas ◽  
Daiva Žilionienė ◽  
Lina Šneideraitienė ◽  
Vilius Filotenkovas
Keyword(s):  
Mechanical Properties ◽  
Laboratory Testing ◽  
Asphalt Binder ◽  
Physical And Mechanical Properties ◽  
Magmatic Rock ◽  
Asphalt Mixtures ◽  
High Quality ◽  
The Road ◽  
The Third ◽  
Foreign Countries

In Lithuania dolomite is the third most excavated by the amount mineral resource, which is mostly used in subbase layer and hot asphalt mixtures for asphalt binder and base courses. Although, for asphalt wearing layer are often used granite aggregates, but this magmatic rock is imported from foreign countries. In one of the quarries of JSC “Dolomitas” higher quality dolomite is produced, which has similar mechanical properties to granite. To determine changes in mechanical properties of the different type of aggregates while using in the road, high-quality dolomite and two types of granite were chosen for laboratory testing. In this study, for evaluation of physical and mechanical properties of aggregates by laboratory tests for determining resistance to freezing-thawing, resistance to fragmentation, and polished stone value were carried out. Also, according to the results of laboratory testing, high-quality dolomite aggregate showed equal performance comparing to granite aggregates.

scholarly journals STUDY OF METHODS FOR IMPROVING THE PHYSICAL AND MECHANICAL PROPERTIES OF COTTON FIBER.

2019 ◽  
Vol 78 (10) ◽  
pp. 709-712
Author(s):  
Alisher Mashrabovich Salimov ◽  
◽  
Otabek Alisherovich Salimov ◽  
Keyword(s):  
Mechanical Properties ◽  
Cotton Fiber ◽  
Physical And Mechanical Properties

scholarly journals The Main Problems of Improvement of the Means of Individual and Collective Protection in Russia

2017 ◽  
Vol 1 (2) ◽  
pp. 28-38
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Protective Equipment ◽  
Skin Protection ◽  
High Quality ◽  
Processing Equipment ◽  
Optically Transparent ◽  
Chlorobutyl Rubber

The article is dedicated to the problems of further improvement of the Russian means of individual and collective protection and to the ways of their solution. Thus, in order to reduce the weight of the facial parts of advanced indigenous masks of respiratory protective equipment, as well as for the improvement of their appearance, it is necessary to procure from abroad or to master independently the technologies of the production of chlorobutyl rubber and volcanics. It is necessary also to acquire from abroad or to learn how to produce indigenously the special rubber processing equipment. The output of modern materials for the production of flexible facial parts, panoramic glasses and spectacles (masks) for respiratory protective equipment is impossible without the procurement from abroad or mastering independently the technologies of the synthesis of optically transparent polyurethane. The further improvement of catalysts and sorbents used in canisters for filter respirators is impossible without the development of technologies of the production of fine pored catalysts and sorbents on their basis, as well as without the recovery of indigenous base for the production of sorbents and active charcoals. The output of modern filtrating materials depends completely on the development of technologies and the equipment for the production of special laminated board and other technologies of the production of multilayered filtering materials. The development of advanced means of skin protection requires the mastering by the Russian manufacturers of technologies of obtaining of microporous, air-ermeable carbon-filled material of high quality and with reinforced physical and mechanical properties. In order to produce the lightweight isolating means of skin protection is it necessary to master technologies of the production of multilayered and armor-clad membranes with high protective and physical and mechanical properties. The problems of the development and the production of the materials for the means of collective protection are the same as for the personal respiratory protective equipment.

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