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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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. D — 09 s3123 accurate for determining transfer pressure. If you like to setup a quick demo, let us know at support madcad. Documents Flashcards Grammar checker. Please first verify your email before subscribing to alerts.

It is especially adtm for those compounds used for encapsulation or other low pressure molding techniques.

Read the spiral flow length directly from the molded specimen at the point of farthest continuous flow to the nearest 0. Attempts to develop a full precision and bias statement for this test method have not been successful. ASTM grants you a license as follows: We have no amendments or corrections for this standard.

Note 1—There is no known ISO equivalent to this test method. 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.

As the voice of the U. Enter your personal account email address to request a password reset: The temperature shall be allowed to reach equilibrium by waiting at least 3 min between moldings.


Spiral Flow of Low-Pressure Thermosetting Molding Compounds1

Best Practices for Incorporating Standards Education in the. NOTE 4—There is considerable evidence that the test is usable over a wider range of flow lengths, but this has not yet been confirmed by interlaboratory testing. Enter your account email address to request a password reset: Data Sheet for CalCoat Sampling, based on engineering principles, prior to packaging shall be considered an acceptable alternative.

Already Subscribed to this document. For this reason, data on precision and bias cannot be given. The use of excessive amounts of compound will result in shorter, inconsistent spiral flows. Cure the compound as recommended for easy removal. Please first log in with a verified email before subscribing to alerts. Please login to your authorized staff account to use this feature.

Spiral Flow of Low-Pressure Thermosetting Molding Compounds1

Aatm standard is not included in any packages. You may delete a document from your Alert Profile at any time. The electronic file may not be reproduced in any way.

Are you sure you want to empty the cart? It is recommended that the plunger be equipped with at least one peripheral sealing groove. 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.

Too long a dwell time before transferring will cause erratic results. Standards Subsctiption may be the perfect solution.

ASTM D3123 – 09(2017)

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You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. 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. Therefore, for best interlaboratory correlation it is recommended that identical pot diameters be used.

Therefore, the force exerted by the plunger shall be measured by some means such as an accurately calibrated direct-reading force gage or proving ring. Content only available by subscription. Several preliminary moldings shall be made with the material to be tested to purge the helical runner before beginning the test.

Anyone wishing to participate in the development of precision and bias data should contact the Chairman, Subcommittee D Remember me for one month. Register for a trial account. 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.

NOTE 3—Since the only commercially available molds are calibrated in inches, spiral-flow length will be reported in these units. Material-Testing – Learn Civil Engineering. Measure the temperature in accordance with adtm procedures described in Practice D or by thermocouples asttm to the mold and plunger. No items in cart.