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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Enabling you to identify and mitigate the intrinsic risk in your operations, astmm chains and business processes. Polyamide Type at PV2: NOTE 2—Petroleum distillates, formerly used as solvents, have been eliminated due to possible toxic effects.

Due to copyright restrictions, we are not able to provide copies of standards. Precision and Bias Auditing Consulting Sourcing Training. Each user qstm select a solvent that can meet applicable safety requirements and thoroughly clean machine parts. Last previous edition approved in as D—94 A built-in tachometer provides speed indication.

This test method evaluates the performance of materials in rubbing contact under end use type conditions. NOTE 6—A chart recorder can be used to continuously record torque throughout the test.

A break-in period, typically 40 hours, is run to ensure intimate contact between the mating parts. Current edition approved Oct. The contact area is 1. In cases where materials, products, or equipment are available only in inch-pound units, SI values in parentheses are for information only.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. 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.

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Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries. Permission rights to photocopy the standard may also be secured from the ASTM website www. AA, the hardness Rc 20 6 5. Certification Formally confirming that your products and services meet all trusted external and internal standards. The test specimen is machined from a larger sample of the v3702 material.

Coefficient of Friction ASTM D3702

Acetal homopolymer at PV2: Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. A number in parentheses indicates the year of last reapproval.

Contact pressure, rotational velocity RPMand the number of cycles hours must be specified for each test. Whether your business is local asm global, we can ensure your products meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world. NOTE 4—Check compatibility of the test specimen cleaning procedure and reagents with the speci?

Coefficient of Friction ASTM D

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. Subscripts 2a, 2b, 2c, and 2d are the corresponding?


Load is obtained by asym of dead weights to the No further reproductions authorized. Through our astj 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.

Send us a request Need help or have a question? Need help or have a question? Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. NOTE 3—Remove all solvents from the washer before testing. Standards can be obtained from appropriate standards authorities. Weights are added to provide the desired contact pressure, and the rotational velocity is set.

The test specification refers to self-lubricating materials – external lubrication is not part of the specification. This standard is subject to revision at any time by the responsible technical committee and must be f3702 every? Summary of Test Method 3. Refer to Table 1 to convert the speci?

The lever arm may be balanced to compensate for the weight of the stationary washer. Falex Friction and Wear test machine. Wear rate can be calculated asym either in. This test data would be used for the design of gears and bushings. Formally confirming that your products and services meet all trusted external and internal standards.