Determination of Strain Properties of the Leather Semi-Finished Product and Moisture-Removing Materials of Compression Rolls

Amanov, Auezhan; Bahadirov, Gayrat; Amanov, Tileubay; Tsoy, Gerasim; Nabiev, Ayder

doi:10.3390/ma12213620

Cited by 34 publications

(14 citation statements)

References 2 publications

(1 reference statement)

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“…, where x is the number of leather samples for the experiment, taken from a batch of 2500 pcs, so, n = 10 pcs. From these 10 skin samples, the strips were cut out with a cutter across the backbone line, 0.05×0.25 m in size; the strips were numbered and assembled into groups of 5 pcs according to the scheme given in [7,20].…”

Section: Methodsmentioning

confidence: 99%

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Study of the Efficiency of Squeezing Moisture-Saturated Products

2021

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The leather industry includes many technological machines; a squeezing roller machine is used in many operations, for example, in squeezing, degreasing, and after drum dyeing of a semi-finished leather product. The paper presents the results of experimental studies obtained by determining the influence of multilayer wet leather semi-finished products with monshons under squeezing on the amount of the moisture extracted. Mathematical dependences of the amount of the moisture extracted, for each layer of a five-layer wet leather semi-finished product on the feed rate between the squeeze rollers and the roller pressure were obtained. Experimental research is of scientific and practical importance for the development of a technological process for extracting moisture from wet leather semi-finished products used in the tannery, since the quality of the extraction affects the quality of subsequent technological operations, such as leather shaping and splitting. An experimental study was performed using the method of mathematical statistics, namely, the method of mathematical planning of the experiment. Mathematical models were obtained for the amount of extracted moisture from five wet leather semi-finished products depending on the rate of their simultaneous feed and the pressure of the squeezing rollers. The results of the experiment showed that in squeezing a five-layer product, the productivity of the technological process of extracting moisture from wet leather semi-finished products increases by five times in comparison with existing squeezing roller machines. The use of the results of the experimental study will contribute to a significant reduction in the energy consumption of the squeezing roller machine by simultaneous multi-layer processing of wet leather semi-finished products

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Section: Methodsmentioning

confidence: 99%

“…The hypothesis of the adequacy of the equations obtained was tested with the Fisher criterion at a confidence level of α = 0.95 [7,20].…”

Section: Engineeringmentioning

confidence: 99%

Study of the Efficiency of Squeezing Moisture-Saturated Products

2021

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“…The widespread introduction of this method requires a comprehensive study of the technological process of asymmetric rolling and metallographic research. It is important to study the effect of high-speed asymmetry modes on the structure and mechanical properties of the metal being processed [19][20][21][22][23][24][25][26][27][28][29][30]. In the section materials and research methods, research methods and the tested aluminum alloy are given in more detail.…”

Section:  Cos Fmentioning

confidence: 99%

Crystallographic structural changes of Al1050 under different types of sheet metal rolling

Saydakhmedov

Bakhadirov

2021

E3S Web Conf.

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AA1050 aluminum alloy was studied with symmetric and asymmetric rolling in various technological modes of rolling equipment. The rotational speeds of the rolls and the number of passes varied according to the initially foreseen scheme. Rolling of aluminum sheet alloy was carried out on an experimental - laboratory installation. The crystallographic texture before and after rolling was investigated using X-ray diffraction. X-ray analysis data was processed using MTEX MATLAB toolbox 75. The pole figures and the texture of the samples of aluminum alloy on the Euler space are given. It was shown that pole figures obtained based on X-ray analysis of samples, rolled by the traditional way, had orthorhombic symmetry, and the sample texture had typical components of traditional rolling, like Cu (copper), Su (with lower intensity) B (Brass).

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“…[3,4] is devoted to the study of structure state under skin processing. In [5], the strain properties and characteristics of a chrome leather semifinished product made of bovine skin were experimentally investigated according to its topographic sections and the coatings of the squeezing rolls. The dependences of the leather semi-finished product strain on the clamping pressure in the topographic sections of the butt, belly, Shoulder and moisture-removing coatings of the squeezing rolls were determined.…”

Section: Literature Reviewmentioning

confidence: 99%

Experiments on Moisture Squeezing from a Leather Semi-Finished Product

Atahanovich*¹,

Nikolaevich²,

Mustafaevich³

et al. 2020

IJRTE

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The paper presents the results of experimental studies of manufacturing process of moisture squeezing from a wet leather semi-finished product. The effect of the multiplicity of leather semi-finished product passage between the squeezing rolls is determined. The effect of manufacturing factors, such as passage velocity, clamping force of the rolls and the multiplicity of leather semi-finished product passage between the squeezing rolls, on the wringing process is experimentally determined. The dependence of moisture amount removed from the leather semifinished product on the velocity of its passage between the squeezing rolls under pressure intensity is established.

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Determination of Strain Properties of the Leather Semi-Finished Product and Moisture-Removing Materials of Compression Rolls

Cited by 34 publications

References 2 publications

Study of the Efficiency of Squeezing Moisture-Saturated Products

Study of the Efficiency of Squeezing Moisture-Saturated Products

Crystallographic structural changes of Al1050 under different types of sheet metal rolling

Experiments on Moisture Squeezing from a Leather Semi-Finished Product

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