The purpose of the test - change according to different criteria
- To the impact test of full pipe parts usually through the specialThe instrumented drop hammer impact test machineTo complete.
- Auto industry for braking system of pipe diameter smaller sample, can according toISO 7628-2Standard test using pendulum impact tester, test to improve beam structure, pendulum choose 7.5 J.ISO 179-1In the standard,Pendulum impact testing machineIs the basis of plastic test equipment.Pendulum blade according to this standard for the special design, pipe sample stents using metal parts, by inserting the polymer mat method to match the pipe diameter.
- The test is low temperature impact test, test temperature for to 40 ° C.Impact test完成后要对管材试样进行检查，寻找裂纹和失效；试验不会测定冲击强度。
- For involving large diameter pipe pipe material of scientific analysis, in addition to the impact test parts to complete tubes (for example, according toThe ISO 3127Standard), can also according toISO 9854-1The standard for measuring pipe parts.The measurement isISO 179-1A special version of simply supported beam impact test.inISO 179-1In the standard, the use of the pendulum is 15 or 50 J J.Test the ISO 179-1 standard bracket.Standard sample stent spacing is 70 mm, small sample stent spacing of 40 mm.Sample preparation for parallel to the pipe axis arc of the need to use a special.
- ISO 9854-1Standard tests can be performed at different temperatures.Therefore need to be in a low temperature mediation in the sample, and test must be out in the sample temperature box for 10 seconds.Results by calculating a series of 30 times independent test specimen failure ratio, crack and fracture of the sample evaluation.
- ISO 9854 part 2On the use of different polymer material sample test conditions are specified.
