This standard is issued under the fixed designation C ; the number immediately 1 This test method is under the jurisdiction of ASTM Committee C08 on. Abrasion Resistance of Refractory Materials at Room Temperature1 This standard is issued under the fixed designation C/CM; the number immediately. ASTM C – Download as PDF File .pdf), Text File .txt) or read online. ASTM C
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Check the air pressure before and after the abrading media is run ast the system. Normally, the free surface is the most appropriate test surface. Flare the tubing v704 one end to sit snugly inside a 9. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
Interferences Factors known to Affect Results 5. For brick samples test an unbranded surface.
Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Determine the volume of the specimens by measurement of length, width, and thickness to the nearest 0. Use one gauge as the primary gauge; all pressure measurements are to be taken from that gauge. Originally approved in Regulate the air pressure to kPa [65 psi].
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Take the statistically significant effect of this small air pressure variation into consideration and use only gauges as specified in 6.
For monolithic refractory specimens, test the surface that is, top free face or bottom mold face that most accurately reflects the actual field situation. Check the inside diameter periodically for wear Fig. The minimum recommended diameter for dial type is mm [4.
Current edition approved March 1, A nonuniform, or unsymmetrical wear pattern indicates that the abrasion tester is not set up properly for example, the nozzle is not perpendicular to the specimen plate, the nozzle is not securely fixed into place, the nozzle to specimen distance is incorrect, the air pressure is varying, etc.
Included are the abrading media weight gramsspecimen weight gramsspecimen weight loss due to abrasion gramsand the resultant volume loss cubic centimeters. Report the calibration value of the glass plates, the air pressure used, and the calibration date for the last calibration event aastm prior to running the samples. The use of appropriate drying equipment is necessary in order to achieve consistent results. Summary of Test Method 3. Significance and D704 4. Size the orifice so that g of the abrading media flows through the funnel in 6 15 s.
Position the specimen such that the abrasion pattern is centered on the surface of the plate. Please fill this form, we will try to respond as soon as possible. The glass plate may be placed in the abrasion tester with either face up.
Five different types of refractories, along with a float glass plate standard, were tested for abrasion resistance by each laboratory. Combining values from the two systems may result in non-conformance with the standard. Ensure that there are not any flow obstructions between the gauge and the gun.
The glass tube is placed through the sleeve in the tubing nut, compressing the grommet within the nut. Observe the abrasion pattern of the glass plate through the edge of the plate.
ASTM C – Free Download PDF
Attach the blast gun to the top of the chamber through the hole in the top and secure it in place with a nut. Connect the lower funnel to the feed inlet of the blast gun with clear flexible poly vinyl chloride tubing with an inside diameter of 6. Specimens were then randomly selected for distribution to the participating laboratories.