GB/T 3513-2018Rubber,vulcanized—Determination of adhesion to single wire—Pull out test (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 3513-2001 "Measurement and extraction method for the adhesion of vulcanized rubber to single steel wire". The main technical changes compared with GB/T 3513-2001 are as follows.

--- Change the "wire bead" in the range to "bead wire" (see Chapter 1);

--- Change the "1.15" in the mold schematic to "1.15d" (see Figure 1);

--- Increased the requirements for the tensile machine "using a tensile testing machine that meets the requirements of GB/T 17200" (see 4.2);

--- Increased the recommended type of wire holder and the requirements for the clamping surface (see 4.3);

--- Removed "heating or steam to heat the upper and lower stencils" (see 4.4);

--- Increased vulcanization temperature control range (see 4.4);

--- Increased the content of the release agent (see 4.6);

--- Added Appendix A calibration schedule.

The previous versions of the standards replaced by this standard are:

---GB/T 3513-1983, GB/T 3513-2001.

1 Scope

This standard specifies the method for determining the adhesion of vulcanized rubber to a single steel wire.

This standard applies to rubber products and bead wire reinforced with a single steel wire.

Note: Usually the bead wire is a single wire coated with brass, bronze or zinc.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 2941 Rubber physical test method General procedure for preparation and adjustment of specimens (GB/T 2941-2006, ISO 23529:2004, IDT)

GB/T 6038 rubber test compound compounding, mixing and vulcanization equipment and operating procedures (GB/T 6038-2006, ISO 2393:1994, MOD)

GB/T 15340 Natural and synthetic raw rubber sampling and its sample preparation method (GB/T 15340-2008, ISO 1795:2000, IDT)

GB/T 17200-2008 Rubber and plastics tensile, pressure and bending test machine (constant speed drive) technical specification (ISO 5893:2002, IDT)

GB/T 25269-2010 Rubber Test Equipment Calibration Guide (ISO 18899:2004, IDT)

3 Principle

Embedding the steel wire in a rubber block according to the specified size for vulcanization, and then measuring each wire along the axial direction of the steel wire from the rubber block on a tensile machine The force required to extract.

4 Instruments and materials