Flow of Low-Pressure Thermosetting Molding Compounds. Article no: STD- Edition: Approved: 9/1/ No of pages: 4. Replaces: ASTM D ASTM-D Standard Test Method for Spiral Flow of Low-Pressure Thermosetting Molding Compounds – spiral flow; thermosets;; ICS Number Code Standard Number, ASTM D – 09(). Title, Standard Test Method for Spiral Flow of Low-Pressure Thermosetting Molding Compounds.
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ASTM D3123 – 09(2017)
The relationship between the amount of compound and the dimensions of the transfer pot is critical in obtaining meaningful, reproducible spiral-flow values.
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Permission rights to photocopy the standard may also be secured from the ASTM website www. September 1, 1 Updated ISO equivalency statement. NOTE 2—Preliminary evidence indicates that, in many cases, reasonable correlations may be achieved between laboratories using presses with different pot diameters. The temperature shall be allowed to reach equilibrium by waiting at least 3 min between moldings.
Content only available by subscription. Proceed to Checkout Continue Shopping. Measure the temperature in accordance with the procedures described in Practice D or by thermocouples attached to the mold and plunger.
Anyone wishing to participate in the development of precision and bias data should contact the Chairman, Subcommittee D NOTE 3—Since the only commercially available molds are calibrated in inches, spiral-flow length will be reported in these units. In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise.
It is recommended that the plunger be equipped with at least one peripheral sealing groove. They shall be stored for a minimum of 24 h at the standard laboratory temperature, before breaking the seal on the container. We have no amendments or corrections for this standard. No items in cart. It is recommended that a pot diameter between No further reproductions authorized. NOTE 5—Preforms or pellets may be used if found necessary; however, flow length may be affected by their use. Print 1 2 3 4 5 page sstarting from page current page.
If the document is revised or amended, you will be notified by email. For transfer pots Because this test method does not contain a round-robin-based numerical precision and bias statement, it shall not be used as a referee test method in case of dispute.
Current edition approved Sept. It is the responsibility of the user of this standard to establish appropriate axtm and health practices and determine the applicability of regulatory limitations prior to use. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.
Data Sheet for CalCoat As the voice of the U.
Need more than one copy? D — 09 sufficiently accurate for determining transfer pressure. It involves the use of a standard spiral flow mold in a transfer molding press under specified conditions of applied temperature and pressure with a controlled charge mass.
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Standard Test Method for Spiral Flow of Low-Pressure Thermosetting Molding Compounds
Add to Alert PDF. Sampling, based on engineering principles, prior to packaging shall be considered an acceptable alternative.
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Precision and Bias We have no document history for this standard. Subscription pricing is determined by: Typical examples are presses with pot diameters of Please sign into an account with a subscription to this content, or email for help at support madcad.
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Therefore, for best interlaboratory correlation it is recommended that identical pot diameters be used. No further reproductions authorized. Cure the compound as recommended for easy removal.
It involves the use of a standard spiral flow mold in a transfer molding press under specified conditions of applied temperature and pressure with a controlled charge mass. 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.
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Spiral Flow of Low-Pressure Thermosetting Molding Compounds1
Enter your personal account email address to request a password reset: Significance and Use 4. The actual transfer pressure is then calculated as pascals or pounds per square inch by dividing the force in newtons or pounds-force by the plunger area in square metres or square inches. The electronic file may not be reproduced in any way. There were no books found for the applied search filters. It is especially suited for those compounds used for encapsulation or other low pressure molding techniques.