ISO 6005:1991 pdf download – Alpine skis — Ski binding screws – Test methods
ISO 6005:1991 pdf download – Alpine skis — Ski binding screws – Test methods.
5.1 Determination of the breaking moment Test method in accordance with ISO 3506.
5.2 Ductility test
Drive the screw to be tested into an assembly
specified in 4.1.
Using a hammer, strike the edge of the screw head with several lateral blows until a deformation of 10 is obtained.
NOTE 1 This method is not a suitable control for hydrogen embrittlement, for which a test method will be Ihe iihjørt of future lntertional tandrd.
5.3 Determination of the driving torque
5.3,1 Usinq the drill jig, drill a hole of diameter
4,1 H12 ( +l2 mm) and depth (9 5) mm in test assembly M. The hole shall not he tapped.
5.3.2 Drive the screw to be tested into the hole, using the test jig and a suitable torque wrench screwdriver. Read the driving torque after each half rotation. No lubrication shall be used during this procedure and the maximum penetration without
contact of the screw head and the distance plate
shall be 8 mm + 0,2 mm.
5.3.3 Record the maximum driving torque, In newton metres, as the largest measured value of the torque applied during the driving procedure.
5.3.4 Repeat the test, using at least ten screws.
5.4 Determination of the stripping torque
5.4.1 Using the drill jig, drill a hole of diameter
4,1 H12 ( bo12 mm) and depth (7 5) mm In test assembly P. The hole shall not he tapperl
5.4.2 Use the lest jig to mount and tighten the screws. Apply an increasing torque with the torque wrench screwdriver until a drop in the torque resistance indicates Failure of the thread. The maximum penetration depth shall be 6 mm ± 0,2 mm
5.4.3 Record (he stripping torque, In newton metros, as the maximum value of the moment read on the torque wrench screwdriver.
5.4.4 Repeat the test, using at least ten screws.
5.5 StatIc pull-out test
5.5.1 Using the drill jig, drill holes of diameter
4,1 H12 ( I2 mm) and depth (9 4g5) mm in test
assembly P. ensuring that the holes are at least
50 mm apart.
5.5.2 Use the pull-out apparatus described in 4.4 (see figure 4), which allows the introduction of the screw perpendicular to the surface of the test assembly to a penetration depth of 8 mm ± 0,5 mm, and an axial load of the screw perpendicular to the surface of the test assembly during the pull-out test
Use a maximum tightening torque of 4 Nm.
Posdion the test assembly such that the test screw is equidistant from the support rolls.
5.5.3 Apply a load at a rate of 20 mm/mm until the screw is pulled from the test assembly. Record the maximum load required.