ISO 9903-2:2003

Overview

ISO 9903-2:2003 is an international standard published by the International Organization for Standardization (ISO) that specifies the main dimensions for section wires used in metallic card clothing with interchaining foot. This standard is an essential reference for manufacturers and users of textile machinery components, particularly for carding machines. It ensures consistent design, sizing, and interoperability of section wires, facilitating quality control and compatibility within the textile industry.

The document is part of the broader ISO 9903 series which covers main dimensions for section wires for metallic card clothing. Part 2 specifically focuses on section wires featuring an interchaining foot-an important design feature facilitating the locking and chaining between wire sections.

Key Topics

• Scope and Applicability
  ISO 9903-2 applies exclusively to section wires with interchaining foot profiles used in metallic card clothing. It standardizes the dimensions to achieve uniformity across textile machinery components.

• Main Dimensions
  The dimensions specified include key parameters such as pitch width of the rib (b), total height of the wire (h1), and additional height measures (h2), all critical for ensuring proper mesh and carding performance. The standard outlines two types of section wires:

  • Type C section wire
  • Type CV smaller section wire
    These types differ mainly in cross-section size and dimensional tolerances.

• Designation System
  The standard defines a clear designation format for section wires to facilitate easy identification and ordering:

  • Reference to ISO 9903-2
  • Section wire type (C or CV)
  • Rib width in millimeters
  • Total height in millimeters
    Example: Section wire ISO 9903-2 - C 2,5 × 6

• Normative References
  The standard aligns with ISO 5234, which provides terms and definitions specific to metallic card clothing, ensuring consistent terminology.

Applications

ISO 9903-2:2003 is primarily utilized in the:

• Manufacturing of Textile Card Clothing: Ensuring that section wires conform to exact dimensional standards reduces variance in carding efficiency and machine reliability.
• Textile Machinery Production: Machine builders rely on these dimensions to design compatible card clothing components that meet international quality standards.
• Quality Control: Adoption of this standard allows quality inspectors to verify the dimensional accuracy of section wires, preventing defects and performance issues in carding operations.
• Spinning Preparatory Processes: The precise interchaining of wires enhances fiber alignment and cleaning in carding machines, improving yarn quality downstream.

Related Standards

• ISO 9903-1:2003
  This part covers the main dimensions for section wires with feet that do not interlock or interchain, complementing ISO 9903-2 by addressing alternative wire profiles.

• ISO 5234
  Defines terms and symbols related to metallic card clothing, ensuring consistent language and definitions across standards in this domain.

• ISO 9903 Series
  Covers comprehensive specifications for various types of section wires used in carding machinery, supporting global standardization efforts in textile machinery parts.

By adhering to ISO 9903-2:2003, manufacturers and textile professionals benefit from standardized specifications that optimize carding wire performance, ensure interoperability, and elevate product quality in the textile machinery sector. This standard plays a vital role in enhancing the efficiency and reliability of metallic card clothing globally.