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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NOTE 1—This machine may also be used to measure coefficient of friction. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Atm and Materials 6. An elapsed time indicator with reset feature to indicate motor running time should be included. The contact can be a test material against steel or against itself. Contact pressure, rotational velocity RPMand the number of cycles hours must be specified for each test.

Acetal homopolymer at PV1: Typical spindle speed range is 10 to rpm. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Wear in h round robins averaged 0. 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.

It is the product of a restraining force and the radius at which it acts to balance the frictional torque. Through our network of over 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to atm wide range of industries around the world.

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Summary of Test Method 3. A number in parentheses indicates the year of last reapproval. The contact area is 1. Weights are added to provide the desired contact pressure, and the rotational velocity is set.

Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Last previous edition approved in as D—94 Originally approved in NOTE 2—Petroleum distillates, formerly used as solvents, have been eliminated due to possible toxic effects. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Test durations were h, except for round robin 1 where they ranged from to h. 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.

Inspection Validating the specifications, value and safety of your raw materials, products and assets. Refer to Table 1 to convert the speci?

Coefficient of Friction ASTM D

A break-in period, typically 40 hours, is run to ensure intimate contact between the mating parts. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. AA, the hardness Rc 20 aetm 5. Preparation of Apparatus 7. Test materials are machined into a disk approximately 1.

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Whether your business is local or global, we can ensure your products meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world. This test method evaluates the performance of materials in rubbing contact under end use type conditions.

Coefficient of Friction ASTM D3702

Need help or have a question? Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries.

Standards can be obtained from appropriate standards authorities. This manufacturer recommends a maximum test load of lb kg. The test sample is then weighed dd3702 measured, and the test begins.

Precision and Bias The user of this test method should determine to his own satisfaction whether the results of this test procedure correlate with? Load is obtained by application of dead weights to the