CONTROL THE QUALITY OF PRODUCTS MANUFACTURED AT THE ENTERPRISE BY ASSESSING THE UNCERTAINTY OF MEASUREMENTS

Аннотация

Measurement of the results uncertainty in evaluation A and B kind of components clear separation and correct calculation necessary. A type statistic basically experimental stability shows , B​ type working issuer specification and calibration to the documents based without Their combination through general expanded uncertainty is determined , this and measurement result reliability level determines . Quality under control this approach decision acceptance in doingimportant material evidence as service does . Key words:measurement ,object ,parameter ,standard ,industry ,product , technological .​ ​ ​ ​ ​ ​ The first stage of metrologically based product quality assessment is the identification of the research object and the selection of its main quality indicators. This section describes the target object of the study, the technological process of the product, the important parameters of measurement, as well as thetools and standards selected to ensure theaccuracy ofmeasurements. , synthetic fiber yarn produced at a light industry enterprise was selected as the object of research . This product, due to its physical and mechanical properties, technological subtleties, andexportorientation, places high demands onmeasurement reliability. Also, the main technological stages in the production of this type of product are as follows (Table 1). Table1 Technological process of synthetic fiberyarn production No. Process step Basicmoves/equipment Purpose Raw material Receiving and drying of Moisture loss, obtaining a quality 1 preparation polymer granules solution Melting (Extrusion 2 Meltingin an extruder Liquidizingpolymer granules Start) Filtration and Solution one kind and without 3 Metal filters, mixers homogenization impuritiestothepoint to bring Extrusion through spinneret 4 Spinneret extrusion Formationof finefilaments plates http://www.internationaljournal.co.in/index.php/jasass 13 Volume15 Issue 08, August 2025 Impact factor: 2019: 4.679 2020: 5.015 2021: 5.436, 2022: 5.242, 2023: 6.995, 2024 7.75 Air refrigerators or juicy 5 Cooling Filament hardening bathtubs Stretching rollers, heat Orienting molecules, increasing 6 Orientation treatment strength Emulsion sprayers , oil Friction reduce , next again to 7 Surface treatment burners​ stations work preparation Ready the threads easy 8 Assembly (Winding) Coilwinding machines transportation and use for formation Heat treatment (if Texturizing machines (False- To give elasticity, appearance, or 9 necessary) twist,Air-jet) twistingproperties Interruption strength , fibers Microscope, tensiometer, 10 Quality control number , one diversity , diameter , analyzers elasticity check Dust and from moisture Packaging and Automatic packaging 11 protection , transportation ready to storage machines, special warehouse thesituationto bring This stages every in one product to the quality directly or indirectly effect​ ​ provider of parameters accuracy and them measurement​ ​ of tools uncertainty research in the center stands . Product qualitydescriptive main measurement​ ​ parameters Research within test and measurement​ ​ works following main parameters according to​ take(Table 3.2). Table2 Parameter Unit of No. Description name measurement How many grams of substance are in 9000 1 Linear density tex meters offiber? 2 Length meter Total length of thewrapped yarn 3 Diameter mmm Thickness ofthefiber bycross section http://www.internationaljournal.co.in/index.php/jasass 14 Volume15 Issue 08, August 2025 Impact factor: 2019: 4.679 2020: 5.015 2021: 5.436, 2022: 5.242, 2023: 6.995, 2024 7.75 Breakdown Fiber in the stretch interruption in the phase 4 N force power 5 Humidity ratio % Dried onthethread residue humidity amount 6 Rollmass kg Total weight of each yarn roll Each of these parameters is a key indicator in determining a product's compliance with international export standards (e.g. ISO 2060,ISO 13934,ASTM D1907). Table3 Measurement toolsused inthestudy Measurement Accuracy Calibration No. Measuring tool Model / Type range level status Calibrated, 1 Electronic scales Radwag AS220.R2 0–220g ±0.1mg 2024 Calibrated, 2 Micrometer Mitutoyo IP65 0–25mm ±0.001mm 2024 Computerized Calibrated, 3 Length ruler 0–1000m ±0.01m wrapping system 2024 Strength testing Calibrated, 4 Instron 3345 0–5kN ±0.5%FS machine 2024 Moisture Calibrated, 5 Ohaus MB45 0–100%RH ±0.1% Analyzer 2024 These instruments are calibrated by local metrology centers (e.g., UzMMI) and each of them has acalibration certificate. Table4 Sources ofmeasurement uncertainty in syntheticfiber yarn production No. Process step Measurementobject Sources ofuncertainty http://www.internationaljournal.co.in/index.php/jasass 15 Volume15 Issue 08, August 2025 Impact factor: 2019: 4.679 2020: 5.015 2021: 5.436, 2022: 5.242, 2023: 6.995, 2024 7.75 -Scales Accuracy Raw material Polymer granules mass, 1 -Humidityruler​ ​ Calibration preparation moisture -Operatormistakes - Thermosensor (thermocouple) Temperature (°C), pressure 2 Melting