Product Description

CCSi manufactures these specimen molds for measuring the cut growth resistance of precut vulcanizate specimens, under controlled conditions of environment, temperature, frequency, and severity, as described in ASTM D3629 “Standard Test Method for Rubber Property-Cut Growth Resistance.”

CCSi manufactures these specimen molds for measuring the cut growth resistance of precut vulcanizate specimens, under controlled conditions of environment, temperature, frequency, and severity, as described in ASTM D3629 “Standard Test Method for Rubber Property-Cut Growth Resistance.”

The T-shaped, grooved specimens are pierced, and mounted circumferentially along the periphery of rotating disks and bent or flexed as they strike against freely rotating deflector bars at a controlled frequency. The growth of the cut is measured and expressed as the number of kilocycles required for a 5-fold or 10-fold increase in the cut length.

This test method, referred to as the TEXUS flex test or TEXUS cut growth test, is useful for development studies of polymers, compounding variables, and temperature on cut growth resistance. It has also been shown to relate qualitatively to tire cut growth.

CCSi UltraLife molds are designed, engineered, and manufactured to produce high quality specimens, over an extended service life!

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CCSi UltraLife Specimen Molds: Quality Manufacturing Fill 118 Copy 1 Created with Sketch.

CCSi UltraLife molds are manufactured from homogenous, solid, high carbon content A2 mold steel. Each undergoes precision grinding and CNC (Computer Numerical Control) machining to exacting requirements. The mold cavities are expertly honed and hand polished, after which the mold is industrial chrome plated.

Precision grinding ensures a parallel surface profile of the platens and CNC machining provides ultra-close dimensional tolerances, while the honing and polishing processes guarantee smooth, true specimen cavities. The durable, hard chrome finish resists the corrosive and adhesive effects of most compounds, greatly improving overall durability and ease of maintenance.

The CCSi UltraLife mold platens are thicker than standard molds, providing superior heat and pressure distribution, as well as extending the mold’s useful life by resisting distortion. This also allows the overflow recesses to be deeper, reducing problems associated overfill. The platens are positively positioned with precision guide pins and receivers … assuring precise closure!

CCSi UltraLife Specimen Molds: Innovative Design Fill 118 Copy 1 Created with Sketch.

CCSi UltraLife molds feature a unique cam-action hinge design which improves the critical distribution of pressure. Typical ‘fixed-hinge’ designs cause material to flow, outwardly, from this constraining point. This uneven application of pressure may cause excessive overfill, or cavity voids. The cam-action hinge design has all of the advantages of ‘stacked plate’ molds, combined with the convenience of ‘fixed-hinge’ designs! NOTE

The handles are manufactured from 304 stainless steel (a chromium – nickel austenitic alloy) and contain integral support pins. This allows the handles to rotate, which facilitates opening the mold. The handles are ergonomically positioned to ease placement and removal from the heated laboratory press. NOTE

Large triangular pry slots are located at the corners, opposite the cam-action hinges. These further facilitate mold opening and reduce the occurrence of cavity damage from improperly positioned tools.

CCSi UltraLife Specimen Molds: Features Fill 118 Copy 1 Created with Sketch.

The CCSi ASTM D3629 Specimen Molds Feature:

  • Exclusive UltraLife engineering;
  • Designed with advanced 3D solid modeling;
  • Manufactured using computerized systems and techniques;
  • CNC (Computer Numerical Control) 4 axis machining;
  • Precision ground;
  • Expertly honed;
  • Finely polished;
  • High carbon content A2 mold steel;
  • Thicker plates resist warping, distribute heat and pressure evenly;
  • Cam action hinges prevent uneven closure;
  • Industrial chrome plate finish;
  • 304 stainless steel rotating handles ease opening, closing and handling;
  • Deep overflow recesses (flash pockets) reduce overfill problems;
  • Precision locator pins & receivers assure positive alignment;
  • High strength fasteners resist the effects of strain and stress;
  • Temperature probe orifices may be added for profiling;
  • Optional finishes are available for highly corrosive compounds.

Available in:

  • ASTM D3629 UltraLife 10 Cavity Mold;
  • Other cavity quantities are also available by special order.

Also Available:

  • Specimen Piercing Apparatus;
  • Poly Inserts for Specimen Piercing Apparatus.

NOTE handles are optional and hinges are not offered with the D3629 design.

CCSi UltraLife ASTM D3629 Specimen Molds: Specifications Fill 118 Copy 1 Created with Sketch.
Part Number Configuration Specimen Description
CCS-D3629-PaD3629 Specimen Piercing Apparatus Available by Special Request
CCS-D3629-PsD3629 Specimen Holder Available by Special Request
CCS-D3629-PtD3629 Specimen Piercing Tool Available by Special Request
CCS-D3629-PiD3629 Polypropylene Inserts (50 pk.) Available by Special Request
CCS-MD3629-10D3629 10 Cavity, 2 Plate Specimen Mold Body: 25.4 x 38.2 x 4.8 mm Tab End: 25.4 x 12.7 x 6.4 mm

Index Terms: Fill 118 Copy 1 Created with Sketch.

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