BS ISO 15509:2019 pdf download.Adhesives — Determination of the bond strength of engineering-plastic joints.
5.1.4 Removal of the sprue
Remove the central part, or sprue, from each of the adherends. A simple method consists of using a chisel while rotating the adherend in a lathe.
Avoid any contact with the bonding area during this operation.
5.1.5 Geometry
The specimen shall consist of two adherends bonded together. The dimensions of each adherend shall be as given in Figure 2.
5.2 Surface preparation
Prepare the bonding surfaces of the adherends in accordance with ISO 17212. Corona discharge at ambient pressure is the preferred method.
Key
1 baseplate
2 guide pin
3 fixation holding the adherend on the baseplate (three fixation points round the circumference, using springs exceeding a force higher than the weight of the adherend)
4 metal sleeve
5 screw for fixing spacers on the metal sleeve
6 gap for adhesive bond
7 adherend
8 spacer used to define the bond gap thickness (three pairs of spacers round the circumference, manufactured from the same material as the adherends)
9 adjustment screw (for adjusting bond gap)
5.4 Application of the adhesive
Apply the adhesive using the application device as shown in Figure 4, as follows.
Place a baseplate carrying one of the adherends under the dispenser.
Adjust the dispenser so that the nozzle is located exactly above the application area. Apply the adhesive.
NOTE An automated rotating device coupled with the dispenser has been shown to give good results.
Assemble the two halves of the mounting jig and cure the adhesive in accordance with the manufacturer's instructions.
5.5 Conditioning and testing atmosphere
The specimens shall be conditioned and tested in one of the standard laboratory atmospheres
specified in ISO 291.
6 Apparatus
5.1 Test machine, equipped with a temperature-controlled enclosure for tests carried out at
temperatures other than ambient.
5.2 Clamping jig (see Figure 5), consisting of an adapter, and two jaws with hinge, screw and locknut.
NOTE This special clamping jig allows easy and quick fixing of the specimen in the test machine.
10 Test report
The test report shall include the following information:
a) a reference to this document, i.e. ISO 15509:2019;
b) all details necessary for complete identification of the adhesive tested, including type, source and manufacturer's code number, batch or lot number, etc.;
c) all details necessary for complete identification of the adherends used, including details of
preparation and moulding, the method of preparation of the surface prior to bonding, the conditions used to cure the adhesive and the atmosphere used to condition the specimens;
d) the test conditions and test mode (tensile or torsional);
e) the number of specimens tested;
f) the shear and/or tensile strength of each specimen;
g) the failure pattern of each specimen, in accordance with ISO 10365;
h) the date of the testing.
BS ISO 15509 pdf download.