ISO 8116-4:2008

Overview

ISO 8116-4:2008 is part of the ISO 8116 standard series, focusing on textile machinery and accessories, specifically beams for winding. This fourth part establishes test methods and quality classification for flanges used on weaver's beams, warper's beams, and sectional beams. The standard is essential for manufacturers and users of textile machinery, ensuring that beam flanges meet required performance and durability criteria for efficient and safe textile manufacturing.

By specifying test procedures and quality classes, ISO 8116-4:2008 promotes uniformity, comparability, and reliability in the production and application of beam flanges in the textile industry.

Key Topics

• Scope and Purpose: The standard details procedures for testing the mechanical performance of flanges for various beam types used in winding and weaving processes within textile machinery.
• Quality Classification: Flanges are categorized into four quality classes (Q1 to Q4) based on their deformation behavior under load. This classification is essential for selecting the appropriate flange according to the stresses encountered during textile processing.
• Test Methods:
  • Application of controlled loads to beam flanges using specified apparatus.
  • Measurement of both total and plastic deformation using dial gauges positioned at 120° intervals.
  • Determination of compliance with predefined deformation limits at maximum test loads.
• Performance Criteria: Evaluation under increasing stepwise loads until the maximum test load as specified by the quality class is reached. Residual deformation is monitored to ensure long-term performance.
• Influencing Factors: The standard recognizes the impact of yarn characteristics, winding stress, conditioning behavior, and the geometry of both the barrel and flange on the loading conditions and subsequent flange selection.

Applications

ISO 8116-4:2008 is vital for the following applications in the textile industry:

• Quality Assurance: Textile machinery manufacturers implement these test methods to verify that beam flanges meet international performance criteria before installation or sale.
• Flange Selection: Plant operators and textile engineers use quality classifications (Q1–Q4) to choose the appropriate flange type, based on yarn type and winding parameters, which directly affect winding density and load.
• Process Optimization: Consistent flange performance minimizes production downtime caused by flange deformation or failure, thereby enhancing operational efficiency.
• Safety and Reliability: Standardized testing assures safer working environments by reducing the risk of machine malfunction due to substandard parts.
• Textile Product Quality: Reliable winding beams help maintain consistent yarn tension and density, contributing to higher-quality fabrics and reduced production waste.

Related Standards

ISO 8116-4:2008 is closely linked with other parts of the ISO 8116 series, each addressing different components or definitions associated with textile winding beams:

• ISO 8116-1: General vocabulary for winding beams and accessories.
• ISO 8116-2: Specifications for warper’s beams.
• ISO 8116-3: Specifications for weaver’s beams.
• ISO 8116-5: Sectional beams for warp knitting machines.
• ISO 8116-6: Beams for ribbon weaving and knitting.
• ISO 8116-7: Beams for dyeing slivers, rovings, and yarns.
• ISO 8116-8: Definitions of run-out tolerances and measurement methods.
• ISO 8116-9: Dyeing beams for textile fabrics.

ISO 8116-4:2008 should be used in conjunction with these related standards for comprehensive guidance on the design, testing, and application of textile machinery beams and their components.

Keywords: ISO 8116-4:2008, textile machinery, weaver’s beams, warper’s beams, sectional beams, flange test methods, quality classification, winding beams, textile accessories, beam flange testing, textile manufacturing standards.