JPH0311726Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a material with a coating formed on the surface of the material such as a plated or laminated body (hereinafter referred to as the object to be measured).
This invention relates to a peel test device that measures the adhesion between a film and a material.

(Conventional techniques and problems) Conventionally, there are many methods for determining the adhesion between a coating and a material, such as a plated thin film, such as a bending test method, a heating test method, a rope ball indentation method, an abrasion test method, and a peel test method. Test methods have been proposed and implemented. Among these, it is known that the peel test method provides good reproducibility when the peel conditions are constant.

In order to obtain good measurement accuracy in the peel test method, it is necessary to maintain the peel angle, peel speed, etc. of the object to be measured constant, but in the past, there was no suitable equipment for this purpose, and it was difficult to use a universal test device. was common.

Therefore, when performing a peel test using a universal testing machine, place the peeled edge of the coating against the sample surface.
It must be held at 90 degrees and pulled upward at a constant speed, and moved horizontally at the same speed as this pulling speed.

However, if the movement in the horizontal direction is performed manually, it is difficult to maintain the same tensile speed as the speed, and it is also difficult to maintain the peeling angle at 90°. Adding a device that performs the above operations to a universal testing device would not only make the entire device larger than necessary, but also
It is uneconomical.

(Purpose) The purpose of this project is to eliminate the above-mentioned drawbacks and provide a device that allows even unskilled personnel to easily set the movement of the object to be measured and to maintain constant peeling conditions. The angle can be changed from 180° to 180°, and the peeling point can be maintained at a substantially constant position during the test.

(Structure) That is, the device of the present invention includes a load measuring device fixedly installed on a fixed base plate of a base, and a sample mounting stand provided facing this, and the mounting stand is connected via an angle setting pivoting means. The moving means is connected to a moving means, and the moving means is configured to be fixed to a rotating base plate whose angle can be changed with respect to the base.

In the present device, the separation point of the object to be measured attached to the sample fixing table is maintained on the extension line of the tension arm from the load measuring device.

Furthermore, the mounting base moving means is preferably a non-slip mechanism such as a pinion rack mechanism.

(Example device and operation) In the figure, 1 is a fixed base plate of a base, 2 is a load measuring device incorporating a load cell, etc., 3 is a tension arm, and 4 is a support base. 5 is a sample mounting stand, and 6 is a bracket. Reference numeral 7 denotes a moving means, which includes a pinion 9 and a rack 10 that are pivotally connected to a drive motor 8.
are engaged with each other, and the rack is supported by a rotating base plate 12 via a receiving roller 11. The end connecting portion 13 of the rack is pivotally connected 14 to the bracket 6 of the mounting base, and the pivoting means is provided with an angle setting mechanism 15 such as a wing nut or a push pin to maintain the mounting base 5 at a set angle. .

Figure 1 shows the case of a 90° peel test, in which the rotating board 12 is rotated with respect to the base surface around the rotating axis 16.
It is set at a 45° inclination. With the end of the surface coating A of the object to be measured connected to the tension arm 3 in a conventional manner, the drive motor 8 is driven to move the mount 5 through the rack.

As it moves, the mounting base moves back while maintaining its vertical plane and descends, so the peeling point B of the coating is maintained at the same level while maintaining the set peeling angle, and the load measuring device accurately and stably measures the load during peeling. output, ensuring highly accurate measurements.

Furthermore, the amount or speed of movement of the mount can be easily calculated from a pulse generator (not shown) attached to the drive motor.

FIG. 3 shows the case of a 180° peel test, in which the supporting leg piece 17 as an angle changing means is supported upright, the rotary board 12 is parallel to the base plate surface, and the mount 5 surface is also attached to the arm 3. Set to the same level as. Note that the angle changing means may be electrically operated using a screw nut or the like.

(Effects) According to the present invention, since the angle of the mounting base 5 can be easily set to an angle other than the above using the angle setting mechanism 15, measurements can be performed under various angle conditions, and peeling points and peeling during measurement can be easily set. Since the angle does not change, highly accurate measurement results can be obtained.

[Brief explanation of the drawing]

Figure 1 is a side view of the proposed device in the case of a 90° peel test, Figure 2 is a plan view, and Figure 3 is a side view of the device in the case of a 180° peel test. 2...Load measuring device, 5...Sample mounting stand, 7...
Drive mechanism for moving the mounting base, 12...Rotating board, 15
... Peeling angle setting means.

Claims (1)

[Scope of utility model registration request] A tensile load measuring device is fixedly installed on one side of the base, and a rotating board whose angle can be changed with respect to the base is pivotally attached to the other side, and a sample mounting table is provided facing the load measuring device. . A coating peeling test apparatus, wherein the sample mount is connected on its back side to a moving driving means installed on the rotating board via a peeling angle setting pivoting means.