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.
|Published (Last):||20 March 2015|
|PDF File Size:||12.19 Mb|
|ePub File Size:||9.77 Mb|
|Price:||Free* [*Free Regsitration Required]|
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. ASTM grants you a license as follows: Note 1—There is no known ISO equivalent to this test method.
This standard is also available to atsm included in Standards Subscriptions.
Significance and Use 4. Permission rights to photocopy the standard may also be secured from the ASTM website www.
Norma ASTM D()
We have no document history for this standard. Current edition approved Sept. We have no amendments or corrections for this standard.
Content only available by subscription. This procedure is essential when changing from one compound to another and is recommended as a routine practice. Register for a trial account. 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.
Measure the temperature in accordance with the procedures described aatm Practice D or by thermocouples attached to the mold and plunger.
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.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Several preliminary moldings shall be made with the material to be tested to purge the helical runner before beginning the test. As the voice of the U. 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.
Precision and Bias 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. Remember me for one month. D — 09 sufficiently accurate for determining transfer pressure. Print 1 2 3 4 5 page sstarting from page current page. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.
Spiral Flow of Low-Pressure Thermosetting Molding Compounds1
You may delete a document from your Alert Profile at any time. Best Practices for Incorporating Standards Education in the. No items in cart.
For transfer pots The temperature shall be allowed to reach equilibrium by waiting at least 3 min between moldings. Conversion to SI units can readily be made by multiplying the flow length, in inches, by the appropriate conversion factor, No further reproductions authorized. Enter your account email address to request a password reset: If the document is revised or amended, you will be notified by email.
Search book title Enter keywords for book title search. Material-Testing – Learn Civil Engineering. The elapsed time between insertion of the charge into the pot and aztm development of pressure on the charge by the plunger shall be no more than 5 seconds.
In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise.