FORD FLTM BO 005-01-2001 INCLINED PLATE FLOW TEST FOR POWDERED RESINS《粉末树脂的倾斜板流动试验》.pdf

1、 FORD LABORATORY TEST METHOD BO 005-01 Date Action Revisions 2001 03 20 Editorial no technical change A. Cockman 1992 07 13 Printed copies are uncontrolled Page 1 of 3 Copyright 2001, Ford Global Technologies, Inc. INCLINED PLATE FLOW TEST FOR POWDERED RESINS Application This procedure is used to de

2、termine the relative fluidity of a thermosetting resin by measuring the extent of the flow of a heated pellet of the resin down an inclined glass plate. The resins for which this test is intended are used in Foundry practice in the shell molding process. Apparatus Required Pellet Mold A Parr or simi

3、lar press which will form a pellet 1/2 inch in diameter under 200 PSI is required. If a hydraulic press with a load indicator is not available, the Parr press shown in the drawing may be calibrated so that the required weights necessary to give 200 PSI are attached to the lever when forming the pell

4、et. Balance Analytical type. Oven A thermostatically controlled oven capable of maintaining a temperature of 257 +/- 2 F. The oven is modified by installing a glass plate support on a rod inserted through the oven so that the plate may be tilted from the outside without changing the temperature of t

5、he oven. It is necessary to tilt and lock the plate in a horizontal position and at an angle of 65. Thermometer A thermometer (0 - 300 F, graduated in 2 F divisions) is inserted through the top of the oven and positioned so that the bulb is about 1/2 inch from the glass plate when in a tilted positi

6、on. The thermometer is approximately 24 inches long. Glass Plates Glass plates 4 x 6 x 3/32 inches should be used. The plates should be smooth and without chips and scratches and should be free of oil, resin particles and surface impurities. Stopwatch Millimeter Scale FORD LABORATORY TEST METHOD BO

7、005-01 Page 2 of 3 Copyright 2001, Ford Global Technologies, Inc. Conditioning and Test Conditions All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the

8、 same conditions unless otherwise specified. Procedure 1. Adjust the oven temperature to 257 +/- 2 F. 2. Weigh out 0.500 g of the resin and transfer to the 1/2 inch pellet mold. Form the pellet at 200 PSI for 30 seconds. 3. Place the pellet on the glass plate (which has previously been heated to 257

9、 F in the oven) at the narrow end and insert the plate on the rack in the oven in a horizontal position. When tilted, the pellet should flow down the length of the plate. Several pellets may be run at the same time. 4. Immediately close the oven door and heat the plate and pellets in a horizontal po

10、sition for exactly 3 minutes. 5. At the end of the 3 minutes, tilt the plate by means of the ouside lever to a position 65 from horizontal and heat for an additional 20 minutes. 6. At the end of the heating in the inclined position, immediately remove the plate and allow to cool to 23 +/- 2 C in a h

11、orizontal position. 7. Turn the plate over and measure the length of the pellet (including the original diameter) to the nearest millimeter. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities. FORD LABORATORY TEST METHOD BO 005-01 Page 3 of 3 Copyright 2001, Ford Global Technologies, Inc. INCLINED PLATE FLOW TEST FOR POWDERED RESINS