SAE J 119-2005 Fiberboard Crease Bending Test《纤维板折痕弯曲试验》.pdf

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4、SA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/J119_201005SURFACEVEHICLESTANDARDJ119 MAY2010 Issued 1969-09 Reaffirmed 2010-05 Superseding J11

5、9 JUL2005 Fiberboard Crease Bending Test RATIONALE Five year review - Reaffirm as is. 1. SCOPE This test method is designed to determine the suitability of a painted or unpainted fiberboard for application involving creasing and bending. The specific purpose of the test is to determine whether a giv

6、en material, properly creased, can be bent along the impressed crease without objectionable failure on the surface of the bend. 2. REFERENCES 2.1 Applicable Publication The following publication forms a part of the specification to the extent specified herein. Unless otherwise indicated the latest r

7、evision of SAE publications shall apply. 2.1.1 SAE Publication Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001. SAE J315 Fiberboard Test Procedure 3. EQUIPMENT REQUIRED 3.1 Press with adequate tonnage to crease the test specimen to the desired configuration. 3.2 Matched male an

8、d female die sections, selected for the caliper of sample to be tested and for the desired end result (see Section 5).4. TEST SPECIMEN 4.1 Size Minimum of 100 x 300 mm or as determined by the size of the test die. 4.2 Condition Prior to Testing See SAE J315 (see Section 4) unless otherwise specified

9、. SAE J119 Reaffirmed MAY2010 Page 2 of 45. CREASING RULE (MALE DIE SECTION) 5.1 The thickness of the creasing rule (T2) is designated commercially by the printers point system (1 point equals approximately 0.36 mm), Figure 1.FIGURE 1 - CREASING RULE (MALE DIE SECTION) 5.2 Commercially available in

10、either flat or round face and in the following thicknesses (round face rule shall be used unless otherwise specified):TABLE 1 - CREASING RULE THICKNESS Standard Creasing RuleThicknessStandard Creasing RuleThickness2 points 10 points 3 points 12 points 4 points 5 mm 6 points 6 mm 8 points SAE J119 Re

11、affirmed MAY2010 Page 3 of 45.3 For the normal range of bending fiberboards, the Table 2 serves as a guide in the selection of creasing rule:TABLE 2 - RULE SELECTION GUIDE Fiberboard Thickness mm Creasing Rule 0.76 36 points 1.02 36 points 1.26 48 points 1.52 610 points 1.78 812 points 2.03 10 point

12、s 5 mm 2.28 12 points 6 mm 5.4 Penetration of the creasing rule (T3) shall be such that it equals the thickness of the fiberboard, Figure 1.6. FEMALE DIE SECTION 6.1 The female die opening (T4) may be determined by adding the creasing rule thickness to twice the thickness of the test specimen, Figur

13、e 1.6.2 Depth (T5) shall be equivalent to the thickness of the test specimen unless otherwise specified, Figure 1.6.3 Both female die section and creasing rule shall extend beyond the edges of the test specimen.7. PROCEDURE 7.1 Matched male and female die sections are determined by the thickness of

14、the test specimen (see 5.3) and mounted in press (see 3.1). Stops are provided so that penetration of male creasing rule is as specified in 5.4.7.2 Insert test specimen in die and crease with one stroke of press. Using separate specimens, crease both with the grain and across the grain and on one or

15、 both sides as specified.7.3 The test die or dies should encompass the range of rule thicknesses recommended for the thickness of board being tested (see 5.3). Three or four rules of different thicknesses can be incorporated into the same die to aid in determining the proper rule thickness for creas

16、ing that board.When using a die with multiple scores, the creases cannot be closer than 76 mm on centers or less than 25 mm from the edges of the test specimen parallel to the creasing rule. 8. EVALUATION 8.1 The recommended practice is to bend sides of specimen away from male side of die. In actual

17、 practice, the design of the part may require bending both ways.8.2 The specimen shall be bent through an angle of 180 deg. The specimen shall be bent not to exceed 180 deg with the parallel face kept the minimum distance of board thickness apart, unless otherwise specified. See Figure 2.8.3 The spe

18、cimen shall be usually evaluated after bending. The appearance of fractures on the fiberboard and/or the paint coating shall be reported. SAE J119 Reaffirmed MAY2010 Page 4 of 4FIGURE 2 - FIBERBOARD FRACTURING GUIDE 9. NOTES 9.1 Marginal Indicia A change bar (l) located in the left margin is for the

19、 convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE FIBERBOARD MATERIALS SUBCOMMITTEE OF THE SAE NONMETALLIC MATERIALS BALLOTING COMMITTEE REAFFIRMED BY THE SAE TEXTILE AND FLEXIBLE PLASTICS COMMITTEE