ASTM D3702 PDF

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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Coefficient of Friction ASTM D3702

The mean rubbing velocity is related to spindle rotational speed: NOTE 6—A chart recorder can be used to continuously record torque throughout the test. Subscripts 2a, 2b, 2c, and 2d are the corresponding? Send us a request Need help or have a question?

Last previous edition approved in as D—94 Whether your business is local or global, we can ensure your products meet quality, aatm, environmental, safety, and social accountability standards for virtually any market around the world.

Falex Friction and Wear test machine. Wear in h round robins averaged 0. Inspection Validating the specifications, value and safety of your raw materials, products and assets. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

Certification Formally confirming that your products and services meet all trusted external and internal standards. NOTE 2—Petroleum distillates, formerly used as solvents, have been eliminated due to possible toxic effects. Each user should select a solvent that can meet applicable safety requirements and thoroughly clean machine parts.

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Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. NOTE 4—Check compatibility of the test specimen cleaning procedure and reagents with the speci? An aastm time indicator with reset feature to indicate motor running time should be included. Precision and Bias Originally approved in It is generally believed that useful wear rate precision 1.

The user of d370 test method should determine to his own satisfaction whether ast results of this test procedure correlate with? Mark the test specimen inside the raised test surface so subsequent measurements can be made at the same places. Weights are added to provide the desired contact pressure, and the rotational velocity is set.

Current edition approved Oct.

Coefficient of Friction ASTM D

Polyamide Type at PV2: The contact can be a test material against steel or against itself. Permission rights to photocopy the standard may also be secured from the ASTM asm www. This standard is subject to revision at any d302 by the responsible technical committee and must be reviewed every?

A break-in period, typically 40 hours, is run to ensure intimate contact between the mating parts. Due to copyright restrictions, we are not able to provide copies of standards.

Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. The test specimen is machined from a larger sample of the test material. NOTE 1—This machine may also be used to measure coefficient of friction. Validating the specifications, value and safety of your raw materials, products and assets. Test materials are machined into a disk approximately 1.

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Formally confirming that your products and services meet all trusted external and internal standards. 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. Auditing Consulting Sourcing Training. Acetal homopolymer at PV1: 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.

NOTE 3—Remove all solvents from the washer before testing.

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Refer to Table 1 to convert the speci? In cases d3072 materials, products, or equipment are available only in inch-pound units, SI values in parentheses are for information only. Torque the bolt to 6. The contact area is 1.