ASTM D() – 橡胶/塑料/铁件 磨损率试验标准. ASTM D(). Standard Test Method for Wear Rate and Coefficient of Friction of Materials in Self-Lubricated Rubbing Contact Using. ASTM D(04) – Download as PDF File .pdf), Text File .txt) or read online.
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Contact pressure, rotational velocity RPMand the number of cycles hours must be specified for each test. The contact area is 1.
Coefficient of Friction ASTM D
Originally approved in A number in parentheses indicates the year of last reapproval. In cases where materials, products, or equipment are available only in inch-pound units, SI values in parentheses are for information only.
Assurance Testing Inspection Certification. Polyamide Type at PV2: Auditing Consulting Sourcing Training. Test durations will often be in the 50 to h range. It is recommended that clean cotton gloves adtm clean tweezers or tongs be used.
A built-in tachometer provides speed indication. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
PV limit pressure x velocity is the point at which the material fails catastrophically.
Send us a request Need help or have a question? Current edition approved Oct.
Coefficient of Friction ASTM D3702
Through our network of over 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world. Wear rate can be calculated as either in. NOTE 3—Remove all solvents from the washer before testing. Falex Friction and Wear test machine.
This manufacturer recommends a maximum test load of lb kg. An elapsed time indicator with reset feature to v3702 motor running time should be included. Wear in h round robins ast, 0. Inspection Validating the specifications, value and safety of your raw materials, products and assets.
Formally confirming that your products and services meet all trusted external and internal standards. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend.
NOTE e3702 compatibility of the test specimen cleaning procedure and reagents with the speci? Certification Formally confirming that your products and services meet all trusted external and internal standards.
Permission rights to photocopy the standard may also be secured from the ASTM website www. The user of this test method should determine to his own satisfaction whether the results of this test procedure correlate with?
A break-in period, typically 40 hours, is run to ensure intimate contact between the mating parts. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the d7302 of regulatory limitations prior to use.
The lever arm may be balanced to compensate for the weight of the stationary washer. Validating the specifications, value and safety of your raw materials, products and assets. NOTE 6—A chart recorder can be used to continuously record torque throughout the test.
Reagents and Materials 6. The test specimen is machined from a larger sample of the test material. The test specification refers to self-lubricating materials – external lubrication is not part of the specification. Standards can be obtained from appropriate standards authorities.
This test data would be used for the design of gears and bushings.