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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A number in parentheses indicates the year of last reapproval. If the document is revised or amended, you will be notified by email. Already Subscribed to this document. Need more than one copy? NOTE 2—Preliminary evidence indicates that, in many cases, reasonable correlations may be achieved between laboratories using presses with different pot diameters.
D atm 09 sufficiently accurate for determining transfer pressure. No further reproductions authorized.
Spiral Flow – Neu Dynamics Corporation
Material-Testing – Learn Civil Engineering. They shall be stored d3213 a minimum of 24 h at the standard laboratory temperature, before breaking the seal on the container. The electronic file may not be reproduced in any way. Please login to your authorized staff account to use this feature.
You may delete a document from your Alert Profile at any time. Documents Flashcards Grammar checker. Conversion to SI units can readily be made by multiplying the flow length, in inches, by the appropriate conversion factor, The temperature shall be allowed to reach equilibrium by waiting at least 3 min between moldings.
Attempts to develop a full precision and bias statement for this test method have not been successful. The use of excessive amounts of compound will result in shorter, inconsistent spiral flows. Anyone wishing to participate in the development of precision and bias data should contact the Chairman, Subcommittee D 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.
It is the responsibility asrm the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. You currently cannot view this content. Permission rights to photocopy the standard may also be secured from the ASTM website www.
The relationship between the amount of compound and the dimensions of the transfer pot is critical in c3123 meaningful, reproducible spiral-flow values. NOTE 5—Preforms atm pellets may be used if found necessary; however, flow length may be affected by their use.
However, a few well-documented cases are recorded where differences in pot diameters, even within this listed range, have caused large differences in flow-length readings. Precision and Bias No further reproductions authorized.
Print 1 2 3 4 5 page sstarting from page current page. It is especially suited for those compounds used for encapsulation or other low pressure molding techniques. D — 09 FIG. Register for a trial account.
Spiral Flow of Low-Pressure Thermosetting Molding Compounds1
It involves the use of a standard spiral flow mold in a transfer molding press under asgm conditions of applied temperature and pressure with a controlled charge mass. D — 09 Standard Test Method for Spiral Flow of Low-Pressure Thermosetting Molding Compounds1 This standard is issued under the fixed designation D; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
Please sign into an account with a subscription to this content, or email for help at support madcad. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years d323 if not revised, either reapproved or withdrawn. Cure the compound as recommended for easy removal.
Subscription pricing is determined by: Too long a dwell time before transferring will cause erratic results. Best Practices for Incorporating Standards Education in the. This standard is also available to be included in Standards Subscriptions.
In addition the electronic files may not be downloaded or distributed elsewhere astn computer networks or otherwise. Read the spiral flow length directly from the molded specimen at the point of farthest continuous flow to sstm nearest 0. Your comments will receive careful consideration at a meeting aetm the responsible technical committee, which you may attend.
Please first log in with a verified email before subscribing to alerts. Content only available by subscription. If you like to setup a quick demo, let us know at support madcad. Alternative methods of conditioning samples shall be mutually agreed upon between manufacturer and purchaser.
Proceed to Checkout Continue Shopping. ASTM grants you a license as follows: For this reason, data on d1323 and bias cannot be given. This procedure is essential when changing from one compound to another and is recommended as a routine practice. Last previous edition approved in as D – 98 Please first verify your email before subscribing to s3123. Therefore, for best interlaboratory correlation it is recommended that identical pot diameters be used.
Significance and Use 4. For transfer pots