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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Your Alert Profile lists the documents that will be monitored. It is especially suited for those compounds used for encapsulation or other low pressure molding techniques.
As the voice of the U. Content only available by subscription. ASTM grants you a license as follows: It involves the use of adtm standard spiral flow mold in a transfer molding press under specified conditions of applied temperature and pressure with a controlled charge mass.
Are you sure you want to empty the cart? Attempts to develop a full precision and bias statement zstm this test method have not been successful. Sampling, based on engineering principles, prior to packaging shall be considered an acceptable alternative. Therefore, for best interlaboratory correlation it is recommended that identical pot diameters be used.
ASTM D3123 – 09(2017)
No items in cart. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Several preliminary moldings shall be made with the material to be tested to purge the helical runner before beginning the test.
For this reason, data on precision and bias cannot be given. 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.
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Norma ASTM D()
Too long a dwell time before transferring will cause erratic results. Please first log in with a verified email before subscribing to alerts.
It is recommended that a pot diameter between Last previous edition approved in as D – 98 Precision and Bias The temperature shall be allowed to reach equilibrium by waiting at least 3 min between moldings. Add to Alert PDF. 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.
Subscription pricing is determined by: Please first verify your email before subscribing to alerts. Print 1 2 3 4 5 page sstarting from page current page. Enter your personal account email address to request a password reset: Note 1—There is no known ISO equivalent to this test method. Current edition approved Sept.
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Spiral Flow – Neu Dynamics Corporation
NOTE 3—Since the only commercially available molds are calibrated in inches, spiral-flow length will be reported in these units. Standards Subsctiption may be the perfect solution.
Please login to your authorized staff account to use this feature. 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.
D — 09 sufficiently accurate for determining transfer pressure. The use of excessive amounts of compound will result in shorter, inconsistent spiral flows. They shall be stored for a minimum of 24 h at the standard laboratory temperature, before breaking the seal on the container.
Please sign into an account with a subscription to this content, or email for help at support madcad. 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. Significance and Use 4. 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 d3132 their own responsibility.
Originally approved in The actual transfer pressure is then calculated as pascals or pounds ast, square inch by dividing the force in newtons or pounds-force by the plunger area in square metres or square inches. Therefore, the force exerted by the plunger shall be astj by some means such as an accurately calibrated d33123 force gage or proving ring.
Spiral Flow of Low-Pressure Thermosetting Molding Compounds1
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