ASTM C704 PDF
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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Follow all requirements of the supplement. For monolithic refractory specimens, test the surface that is, top free face or bottom mold face that most accurately reflects the actual field situation. Observe the abrasion pattern of the glass plate through the edge of the plate. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn.
ASTM C – Free Download PDF
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Check the air pressure before and after the abrading media is run through the system. One by mm 4 by 4 in. Do not completely fill or flood the gun supply funnel with material. Size px x x x x The values stated in each system may not be exact equivalents; therefore, use each system independently of the other.
Used for weighing the abrading media and test specimens. Ensure that the main supply funnel has sufficient volume to hold the required g of silicon carbide abrading medium.
Included are the abrading media weight gramsspecimen weight gramsspecimen weight loss due to abrasion gramsand the resultant volume loss cubic centimeters. Calculation and Report 9. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Additionally, calibrate the abrasion tester any time an abnormality occurs in the test such as erratic results or a hole being worn in the glass nozzle. Please help us to share our service with your friends. This can be achieved by using a second glass plate under the calibration plate as a spacer, or by adjusting the height of the sample holding platform.
Provide a gap between the two funnels to allow for air to be introduced to the particle stream. Flare the tubing at one end to sit snugly inside a 9. Included are the abrading media weight gramsspecimen 7c04 gramsspecimen weight loss due to abrasion gramsand the resultant volume loss cubic centimeters. We are a non-profit group that run this website to share documents.
It is also recommended that air gauges be recalibrated at frequent intervals. A number in parentheses indicates the year of last reapproval. Take the statistically significant effect of this small tube inside diameter variation into consideration. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Highly Abrasion Resistant Materials S1. Significance and Use 4. The values stated in each system may not be exact equivalents; therefore, use each system independently of the other. Link to Active This link will always route to the current Active version of the standard.
Specimens were then randomly selected for distribution to the participating laboratories. Equip the gun supply funnel with a 4. Take care to avoid segregation in large containers of abrading media. Use one gauge as the primary gauge; all pressure measurements are to be taken from that gauge.
Inspect the air generator nozzle for wear before any test series and replace as necessary. Thank you for interesting in our services. The glass tube is then positioned at a distance of 2 mm [0. Several values are stated only in SI units as a matter of convention and to permit comparison of results.
The minimum recommended diameter for dial type is mm [4. 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, wstm nozzle to specimen distance is incorrect, the air xstm is varying, etc.
Originally approved in Several values are stated only in SI units as a matter of convention and to permit comparison of results.
Normally, the free surface is the most appropriate test surface. This test method can also be applied to castable refractories see Metric Dimensions, Practice C and Practice C and plastic refractories see Practice C Ensure the gun is perpendicular to the specimen. This log may be kept either on paper or electronically. Attach the blast gun to the top of the chamber through the hole in the top and secure it in place with a nut.