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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Current edition approved Oct. Through our network of over 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions d3072 a wide range of industries around the world.
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This test method evaluates the performance of materials in rubbing contact under end atm type conditions. Each user should select a solvent that can meet applicable safety requirements and thoroughly clean machine parts.
Coefficient of Friction ASTM D
The specimen is fixed into the sample holder using a pin and a bolt, and this assembly is inserted into the tester. This manufacturer recommends a maximum test load of lb kg. Refer to Table 1 to convert the speci? Acetal homopolymer at PV1: A break-in period, typically 40 hours, is run to ensure intimate contact between the mating parts. A number in parentheses indicates the year of last reapproval.
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. Preparation of Apparatus 7.
Standards can be obtained from appropriate standards authorities. Auditing Consulting Sourcing Training. Load is obtained by application of dead weights to the Test durations were h, except for round robin 1 where they ranged from to h. Contact pressure, rotational velocity RPMand the number of cycles hours must be specified for each test.
AA, the hardness Rc 20 6 5. 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.
A built-in tachometer provides speed indication. The user of this test method should determine to his own satisfaction whether the results of this test procedure correlate with?
Permission rights to photocopy the standard may also be secured from the ASTM website www. Polyamide Type at PV2: The contact area is 1. NOTE 3—Remove all solvents from the washer before testing. Falex Friction and Wear test machine. It is recommended that clean cotton gloves or clean tweezers or tongs be used.
Coefficient of Friction ASTM D3702
Precision and Bias The mean rubbing velocity is related to spindle rotational speed: NOTE 1—This machine may also be used to measure coefficient of friction. Send us a request Wilton UK: Validating the specifications, value and safety of your raw materials, products and assets.
If the test conditions are changed, the wear rates may change and the relative value of one material with respect to another may also change.
Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Test materials are machined into a disk approximately 1.
Formally confirming that your products and services meet all trusted external and internal standards. It is generally believed that useful wear rate precision 1.
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. Typical wear rates for some commonly used materials at different PV levels are: Acetal homopolymer at PV2: Torque the bolt to 6.