JPH09243551A - Method and apparatus for quantitatively testing high-temperature adhesion of tin plated steel panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and accurately collect data for quantitatively evaluating the adhesion of a tin plating film and a resin coating film at high temp. in a quantitative test of high-temp. adhesion of a tin plated steel panel. SOLUTION: In a method for quantitative test of a tin plated steel panel 14 evaluating the adhesion of a resin coating film bonded or fused to a tin plated steel panel, the single surface of a resin film 13 is fixed to a support 11 provided with a pull handle 12 and the other surface thereof is bonded to the tin plated steel panel 14 through an adhesive to form a tensile test piece 16 which is, in turn, arranged on the stand 17 of a heating apparatus and the tin plated steel panel 14 of the tensile test piece 16 is heated to predetermined temp. and the pull handle 12 of the support 11 is drawn to measure the tensile force thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for quantitatively evaluating high-temperature adhesion of tin-based plated steel sheet and a testing apparatus therefor for quantitatively evaluating the adhesion between the tin-based plated steel sheet and the resin coating at high temperature.

[0002]

2. Description of the Related Art Generally, a steel can or an aluminum can is used as a container for alcohols, soft drinks, etc., and a resin paint or the like is used because of its aesthetic problems. In recent years, a can using a laminated steel plate in which a film of PET (polyethylene terephthalate) resin or the like is laminated on a plated steel plate with an adhesive is used because a precise pattern can be easily printed and the productivity is high. . When manufacturing a steel can or the like coated with such a resin film, a resin film 51 is adhered and coated on a tin-plated steel plate 50, and then cut into a steel can size, as shown in FIG. Thus, the work of bending the cut piece into a cylindrical shape and welding the side seam portion 52 is performed. At this time, since the temperature of the welded portion in the side seam portion 52 reaches 1800 ° C., the temperature around the welded portion rapidly rises, and tin having a low melting point (232 ° C.) in the tin-plated coating 53 is removed. Melts into a liquid. Then, the adhesiveness of the resin film 51 is lost, and the resin film 51 is peeled off by the jet of air for cooling the welded portion,
This is a factor that reduces productivity. Therefore, conventionally, for example, the following method has been proposed in order to evaluate the adhesion between such a resin film and a tin-based plated steel sheet at high temperature. As shown in FIG. 8, a resin film 51 was adhered to a tin-based plated steel plate 50 having a checkerboard-like cut on the surface, and this was used as a test piece, and the above was applied from the back side of the adhesive surface (adhesive surface) of the resin film 51 After heating the test piece with a burner for a predetermined period of about 6 seconds, air is blown from the air nozzle to the heated resin film 51 to evaluate the peeled state of the resin film 51.

Further, in Japanese Unexamined Patent Publication No. 62-137539, a plated steel plate is pressed by a punch to form a convex portion having a constant height, and the adhesion of the plated coating film is determined by the peeling condition of the plated coating film on the convex portion. The method of evaluating is described.

[0004]

However, although the peeled state of the resin film 51 can be reproduced to some extent by the method of evaluating the peeled state by blowing air onto the resin film 51 while heating the test piece, the reproducibility of the measurement is improved. However, it takes time and labor to collect a large amount of data all at once, and it is difficult to perform efficient measurement because it is poor and it takes time to prepare a test piece. Also, JP-A-62-13753
In the method of evaluating the peeling state of the plated coating by applying a mechanical external force to the plated steel sheet described in JP-A-9-, it is not possible to capture the change of the metal phase in the plated coating at high temperature, and such a metal phase There is a problem that it cannot be applied to the evaluation of the adhesiveness of the resin film in which the change of 1) is involved and the quantitative evaluation cannot be performed as in the above-mentioned method. The present invention has been made in view of the above circumstances, and is capable of easily and efficiently collecting data for quantitatively evaluating the adhesion between the tin-plated coating and the resin coating at high temperature. An object of the present invention is to provide a high-temperature adhesiveness quantitative test method for a system-plated steel sheet and a test apparatus therefor.

[0005]

According to the present invention, there is provided a semiconductor device comprising:
The high-temperature adhesion quantitative test method of the tin-based plated steel sheet described, in the high-temperature adhesion quantitative test method of the tin-based plated steel sheet to evaluate the adhesion of the resin coating adhered or fused to the tin-based plated steel sheet, the resin film One side is fixed to a support provided with a pull handle, the other side of the resin film is laminated on a tin-plated steel sheet with an adhesive or a pressure-sensitive adhesive to prepare a pull test piece, and then the pull test piece is attached. The tensile test piece is placed on a pedestal of a heating device to heat the tin-plated steel sheet of the tensile test piece to a predetermined temperature and to pull the pull handle of the support to measure the pull force. The high temperature adhesion quantitative test method for a tin-based plated steel sheet according to claim 2 is the high temperature adhesion quantitative test method for a tin-based plated steel sheet according to claim 1, wherein the support is formed by bending an end face of a strip-shaped plate. The shape is L-shaped, and the bent portion is a pull handle.

The method for quantitatively testing high temperature adhesion of tin-based plated steel sheet according to claim 3 is the method for quantitatively testing high temperature adhesion of tin-based plated steel sheet according to claim 1 or 2, wherein the support is made of rubber, plastic or the like. Made of flexible material. Claim 4
The high temperature adhesion quantitative test method for a tin-based plated steel sheet according to claim 1, wherein the resin film is an adhesive or a pressure-sensitive adhesive in the high temperature adhesion quantitative test method for a tin-based plated steel sheet according to any one of claims 1 to 3. Is a heat-resistant double-sided adhesive tape or heat-resistant double-sided pressure-sensitive adhesive tape which is applied on both sides in advance. A tin-plated steel sheet high-temperature adhesion quantitative test device according to claim 5 laminates a support, a resin film, and a tin-plated steel sheet in sequence with an adhesive or a pressure-sensitive adhesive to produce a tensile test piece. In a high-temperature adhesion quantitative test device for tin-based plated steel sheet, which measures the tensile force when peeling off the resin film of the tensile test piece and the tin-based plated steel sheet,
A hot plate for heating the tensile test piece to a predetermined temperature by bringing it into contact with the tensile test piece, an elevating means for moving the hot plate, the elevating means, and the tensile test piece in the upper opening. And a tensile tester that is disposed above the frame and that pulls the support of the tensile test piece and measures the tensile force.

The tin-based plating means at least tin alone, alloy plating of tin-zinc, tin-lead, tin-nickel, tin-copper, etc., or a multilayer plating film containing these,
The tin-based plated steel sheet refers to a steel sheet having a tin-based plated coating. In addition, the manufacturing method includes electricity, melting, chemistry,
A method such as vapor deposition may be used. The resin coating refers to a coating of a polymer resin such as polyester represented by polyethylene terephthalate (PET) and polybutylene terephthalate (PBT), polyamide represented by nylon 6 or polyimide. The resin film is a test material used for evaluating the adhesion of the resin coating to the tin-plated steel sheet at high temperature, and is the same material as the resin coating or an acrylic resin having higher heat resistance. It is possible to use the polymer resin film described in (1) above, and by making a tensile test piece, the adhesion between the tin-based plated steel sheet and the resin coating at high temperature can be evaluated. Adhesives and pressure-sensitive adhesives made of polyester-based, polyamide-based, polyimide-based, epoxy-based, acrylic-based, polyurethane-based, silicon-based, and rubber-based adhesives should be used depending on the test conditions such as test temperature. it can.

The heat-resistant double-sided adhesive tape and the heat-resistant double-sided adhesive tape are oxidized or substantially deteriorated in adhesiveness even if they are kept in the air at 232 ° C. which is the melting point of tin for 10 to 40 seconds. It is a film having heat resistance that does not occur and coated with an adhesive or pressure-sensitive adhesive on both sides in advance. For example, based on an acrylic resin film,
A resin film or the like obtained by coating an acrylic adhesive or a pressure-sensitive adhesive on both sides corresponds to this. The support is a plate-like body provided with a pulling handle for peeling off a tensile test piece composed of a tin-plated steel sheet and a resin film, and the material is a metal such as iron or copper, or a heat-resistant plastic,
Rubber or the like can be used. The hot plate is a flat plate made of copper, aluminum or iron having a sufficiently large heat capacity as compared with the tensile test piece, and can be heated to a predetermined temperature by an electric heater held inside,
This is an example of a heating device for rapidly heating the surface of the heated flat plate to the back surface of the tin-based plated steel plate of the tensile test piece so as to bring the tin-based plated steel plate into a predetermined temperature by heat conduction.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. Here, FIG. 1 shows a high-temperature adhesion quantitative test apparatus 10 for tin-based plated steel sheet according to an embodiment of the present invention.
FIG. The high temperature adhesion quantitative test device 10 is
A hot plate 2 for heating the tensile test piece 16 to a predetermined temperature by contacting the tensile test piece 16 as shown in FIG.
1, a jack 22 that is an example of an elevating means for elevating and lowering the hot plate 21, and a gantry 17 that holds the jack 22 and includes a magnet 19 that detachably arranges the tensile test piece 16 in the upper opening 18. Is arranged above the pedestal 17, and the pulling handle 12 of the pulling test piece 16 is pulled,
The tensile tester has a load cell (not shown), which is an example of a tensile tester that measures the tensile force at that time.

As shown in FIG. 2, the tensile test piece 16 according to Example 1 includes a support 11 having an L-shaped cross section and a tin-based plating layer 1.
5 has a structure in which a tin-based plated steel plate 14 obtained by coating 5 on a steel plate 24 is laminated via an acrylic resin film 13 whose both surfaces are coated with an adhesive or an adhesive. Here, the type of the resin film 13 and the support 1 are set so that the adhesion between the support 11 and the resin film 13 is higher than the adhesion between the resin film 13 and the tin-based plating layer 15.
It is necessary to select the first material. Thereby, when a tensile force is applied to the tensile test piece 16, the adhesive portion between the resin film 13 and the tin-based plating layer 15 is peeled off preferentially, and the state of the tin-based plating layer 15 at a predetermined temperature can be evaluated. It will be possible. For the support 11, a material of an electrolytic chrome-treated steel sheet that has a higher adhesion strength to the resin film 13 than the tin-based plating layer 15 near the measurement temperature and has a relatively small heat capacity is suitable. And this thickness 0.19mm
The steel plate is cut to form a strip plate having a length of 100 mm and a width of 10 mm, and one end portion of the strip plate is bent to have an L-shaped cross section, and the bent portion is formed. Was used as the pull handle 12. At this time, the pulling handle 12 may be provided with an opening, a protrusion, or the like to ensure that the pulling handle 12 is gripped by the gripping member 23 of the tensile tester described later and to facilitate automation of the measurement. It is possible.

The tin-based plated steel sheet 14 has a thickness of 0.19 mm.
Steel plate 24 of 200 mm in length and 200 mm in width is cut into a substantially square flat plate shape and subjected to iron-nickel alloy plating (corresponding to 20 mg / m ² as nickel), and then 90 g / liter of sodium stannate, Sodium hydroxide 7.
By immersing in an aqueous solution of a tin plating bath containing 5 g / liter and 15 g / liter of sodium acetate, and performing electroplating at a temperature of about 70 ° C., the tin adhesion amount of 1000 mg
/ M ² of the tin-based plating layer 15 was coated. An acrylic resin film 13 having a thickness of 50 μm, which is an example of a heat-resistant double-sided pressure-sensitive adhesive tape coated with an adhesive or a pressure-sensitive adhesive on both sides of the tin-plated steel plate 14 and the support 1 is used.
1 and 1 were laminated to create a tensile test piece 16. In this heat-resistant double-sided adhesive tape, a 25 μm-thick polyimide film and a stainless steel plate were laminated on both surfaces to form a test body, and the stainless steel plate of this test body was brought into contact with a solder bath at 260 ° C. for 30 seconds. Of the acrylic resin film 13 having high heat resistance without swelling or peeling.
It was used.

The hot plate 21 is an iron base plate having a large heat capacity and having an electric heating type heater (not shown) inside. The heater is heated by using a temperature controller (not shown) so that the temperature of the upper surface of the hot plate 21 can be controlled. For example, 200 ℃
It is an example of a heating device that can be maintained at any temperature in the range of to 300 ° C. In addition, here, as the hot plate 21, a Shamal hot plate (HHP-402) manufactured by Inai Seieidou Co., Ltd. was used. Further, a jack 22 is arranged between the hot plate 21 and the gantry 17, and the jack 22 is driven to drive the hot plate 2
1 can be moved up and down.
The gantry 17 has an opening 18 in the upper part, and a tensile test piece 16 having a larger overall length than the opening 18 abuts from below via a heat insulating material 20 and a magnet 19 arranged near the opening 18. Thus, the tensile test piece 16 can be removably arranged at a predetermined position of the opening 18. Therefore,
The tensile test piece 16 can be easily positioned at a predetermined position, and when the tensile test piece 16 is heated, the magnetic force decreases and the tensile test piece 16 falls without being sucked.
The tensile test piece 16 can be easily recovered. The tensile tester
As shown in the figure, it has a gripping member 23 for gripping the pulling grip 12 of the tensile test piece 16, pulls up the gripping member 23 at a predetermined speed, and uses a load cell or the like to determine the value of the tensile force generated at that time. This is a tensile test device for measurement.

Subsequently, the high temperature adhesion quantitative test device 10 is described.
A high temperature adhesion quantitative test method for tin-based plated steel sheet according to an embodiment of the present invention will be described with reference to FIGS. First, as shown in FIG. 3, the hot plate 21 is positioned below the pedestal 17, and then the tensile test piece 16 is loaded from the side surface of the high temperature adhesiveness quantitative test apparatus 10 and, as shown in FIG. The magnet 1 disposed around the opening 18 is brought into contact with the opening 18 provided on the upper part of the magnet 1 from below.
9 to fix. Next, the hot plate 21 is set to 250
Heat to a temperature of ° C to reach a steady state. At this time, the temperature distribution on the upper surface of the hot plate 21 is 250 ° C. ± 1 ° C.
Is controlled in the range of. The temperature distribution is obtained from the results of this measurement by randomly extracting 9 points on the hot plate 21 using a surface thermometer. When the width of the temperature distribution on the hot plate 21 is larger than the range of ± 2 ° C, the uniform heating of the tensile test piece 16 becomes insufficient, and the reproducibility of the adhesion evaluation may be impaired.

Then, as shown in FIG. 4, the jack 22 is driven to move the upper surface of the hot plate 21 to the tensile test piece 16.
Press on the back side of. At this time, if the degree of rattling (play) on the jack 22 is large, the adhesion between the hot plate 21 and the tensile test piece 16 is deteriorated, and evaluation with high accuracy becomes difficult. It is desirable that the difference between the maximum height and the minimum height at the four corner points on the hot plate 21 that occurs when moving up and down is within 4 mm. Here, the hot plate 21 and the tensile test piece 1
When the adhesion with 6 is good, the hot plate 2
Since the heat capacity of No. 1 is larger than that of the tensile test piece 16 and the thermal conductivity is also good, the temperature of the tensile test piece 16 reaches a predetermined 240 ° C. in about 9 seconds, and the tin-based plating layer of the tensile test piece 16 is reached. The temperature distribution at 15 is controlled within ± 1 ° C.

At this time, tin (Sn) in the tin-based plating layer 15 of the tin-based plated steel plate 14 is heated to be in a molten state, and a part of this tin and iron (Fe) in the steel plate 24 serving as a plating substrate are formed. Upon alloying, this phenomenon occurs locally. Therefore, since the alloyed portion and the non-alloyed simple substance portion of tin have different physical properties such as a melting point,
The adhesiveness of the tin-based plating layer 15 at such a high temperature to the adhesive or the adhesive depends on the alloying ratio, the distribution state of the alloyed portion, and the like. Further, the alloying rate or the distribution state of the alloy portion thereof is not only the temperature of the tin-based plating layer 15 at that time, but also the history condition related to the temperature and time such as the heating rate of the tin-based plated steel sheet 14. It also varies greatly.

Tin (Sn) and iron (Fe) form an alloy having a high melting point even at a temperature below the melting point of tin. The degree of progress of alloying is related to the condition of the interface, temperature and time. In particular, regarding the temperature and time, the higher the temperature and the longer the time, the more the alloying proceeds. However, since the temperature rising rate and the cooling rate are very high at the portion where the peeling of the resin film during actual seam welding is a problem, the time for heating to a high temperature is short and alloying hardly progresses. Therefore, in order to accurately evaluate the adhesiveness between the resin coating and the tin-plated steel sheet during actual seam welding, it is important to measure the adhesive strength in the non-alloyed state. For example, when the tin-based plated steel sheet 14 is heated to a temperature of 250 ° C. over 1 minute or more, the structure of the tin-based plated layer 15 is considerably different from the heating state during welding, and the actual adhesion The sex cannot be evaluated accurately. Therefore, when evaluating the adhesion between the tin-based plated steel sheet 14 and the resin coating, it is necessary to heat the tensile test piece 16 under the condition of a rapid temperature rising rate close to that during actual seam welding.
In the present invention, the state of the metallurgical metal phase of the tin-based plating layer 15 under such a specific temperature condition is treated with an adhesive or a pressure-sensitive adhesive which is an example of mechanical properties on the surface of the tin-based plating layer 15. By measuring the releasability, it can be indirectly evaluated without using the optical observation means.

After the hot plate 21 is brought into contact with the tensile test piece 16 for 8 to 9 seconds as described above, the tensile handle 12 of the support 11 is gripped by the grip member 23 of the tensile test device,
This was raised at a tensile speed of 500 mm / min, and the tensile force generated at that time was measured. FIG. 5 is a schematic diagram showing such a change with time of the tensile force. Here, the data shown by the solid line in FIG. 5 shows an example in which a steel plate that does not bend with respect to a tensile load is used as the support 11, and the maximum tensile force of the tensile test piece 16 is the same. It is a pattern that depends on the attachment area. On the other hand, the data indicated by the broken line in FIG. 5 shows an example in which the support 11 is made of a highly flexible material such as heat-resistant rubber, and a portion where the tensile force is constant with respect to the pulling speed is generated. Tensile strength is 1
6 is a pattern when a peel strength depending on the length of the peeled-off portion of 6 (length in the width direction of the tensile test piece 16) is obtained. Then, the magnitude of such tensile force is measured under various measurement conditions and using the tensile test piece 16 made of various material configurations, and the tin-based plating layer 1 of the tin-based plated steel sheet 14 is measured.
It is possible to quantitatively evaluate the state of the metal phase or the like of No. 5 under high temperature.

When the peeling due to Sn melting on the surface of the steel sheet, which is the main object of the present invention, is evaluated, the adhesion strength measurement portion of the Sn-plated steel sheet of the test piece is heated to a temperature above the melting point of Sn. Needless to say, should be measured in.
Further, also in the present invention, similar to the generally performed peel strength measurement and adhesive strength measurement, in order to prevent measurement variations and ensure reproducibility, test piece preparation conditions, preparation method, measurement conditions, measurement environment, etc. Need to be managed and measured.

Next, FIG. 6 is a side sectional view of the tensile test pieces of Examples 2 to 4 to which the high temperature adhesion quantitative test method for tin-based plated steel sheet according to one embodiment of the present invention is applied. 16 (a), 16 (b), (1
6c), and other devices,
This is the same as the first embodiment. In the tensile test piece 16a of Example 2 shown in FIG. 6 (a), an end face of a strip-shaped steel plate is bent at a right angle to form an L-shaped support 11a, and the support 11a and the tin-plated steel plate 14 are formed. The tin-based plating layer 15 is joined with the heat-resistant double-sided adhesive tape 25.
In this case, the bent portion is used as the pull handle 12a, and when the pull handle 12a is pulled up, the support 1
Evaluate the peel strength (unit: g-force / cm) capable of intensively generating a tensile force at a bent portion which is an end portion of a bonding surface between 1a and a tin-based plated steel sheet 14. You can In addition, the tensile test piece 16b of Example 3 shown in FIG. 6B is an example in which the pull handle 12b is formed in substantially the center of the support 11b.
When the base is pulled up, the support 11b and the tin-based plated steel plate 1
It is possible to exert a substantially uniform tensile force on the surface to be bonded with No. 4, and the tensile strength (unit: g-force / cm ² ) can be obtained by measuring the component of the adhesive force perpendicular to the adhesive surface. The tensile test piece 16c of Example 4 shown in FIG.
This is an example in which a flexible silicone rubber is used as the support 11c, and the heat-resistant double-sided adhesive tape 25 is attached to one surface of the heat-resistant silicone rubber formed into a tape shape. It is prepared by laminating the tin-based plating layer 15 of the tin-based plated steel sheet 14 on the back surface. In this case, a part of the end surface of the tensile test piece 16c can be peeled off, and the peeled portion can be used as the pulling handle 12c to measure the tensile force, and the peel strength can be accurately evaluated.

The embodiments of the present invention have been described above.
The present invention is not limited to these embodiments, and all changes in conditions without departing from the gist are within the scope of the present invention. For example, in the present embodiment, the tin-plated steel plate of the tensile test piece is heated by bringing it into contact with a hot plate, and the tensile test is performed under the condition of the temperature rising rate from room temperature to 250 ° C. in about 9 seconds. However, the present invention can be applied without being limited to this heating rate.

[0021]

In the quantitative test method for high-temperature adhesion of tin-based plated steel sheet according to any one of claims 1 to 4, in which a support provided with a pull handle and the tin-based plated steel sheet are bonded together via a resin film Create a test piece. Therefore, a large amount of tensile test pieces can be easily prepared by bonding the support and the tin-based plated steel sheet. Then, the tensile test piece is placed on the pedestal of the heating device to heat the tin-plated steel sheet of the tensile test piece to a predetermined temperature, and the pulling handle of the support is pulled to measure the pulling force. By analyzing the value of this tensile force, the adhesion of the tin-based plated steel sheet to the resin coating at high temperature can be quantitatively evaluated with good reproducibility and efficiency.

In particular, in the method for quantitatively testing high-temperature adhesion of tin-plated steel sheet according to claim 2, the support has an L-shaped shape by bending the end face of a strip-shaped plate, and the bent portion. Since it is a pull handle, it is possible to easily create a support, and to evaluate the peel strength for peeling off the attachment surface of the tin-based plated steel sheet and the resin film,
This can be reliably measured. Further, in the high temperature adhesion quantitative test method for tin-based plated steel sheet according to claim 3, since the support is made of a flexible material such as rubber or plastic, the tin-based plated steel sheet and the resin film are attached to each other. It is possible to reliably measure the peel strength when the surface is peeled off. In the high temperature adhesiveness quantitative test method for a tin-based plated steel sheet according to claim 4, since the resin film is a heat-resistant double-sided adhesive tape or a heat-resistant double-sided adhesive tape having an adhesive or a pressure-sensitive adhesive applied in advance on both sides, Tensile test pieces can be easily created.

In the apparatus for quantitatively testing high-temperature adhesion of tin-based plated steel sheet according to claim 5, a hot plate for heating the tensile test piece to a predetermined temperature by bringing the tensile test piece into contact with the hot plate is moved. With the elevating means, a hot plate heated to a predetermined temperature can be crimped to the tensile test piece to rapidly heat the tensile test piece to a predetermined temperature, and the temperature distribution of the tensile test piece is narrow. Can be held in the area. Furthermore, since it has a mount for detachably disposing the tensile test piece in the upper opening, setting and replacement of the tensile test piece can be easily performed, automation of measurement is easy, and a large amount of data can be stored. It can be acquired in a short time. Further, since the support of the tensile test piece is pulled, and since it has a tensile tester for measuring the tensile force,
It is possible to quantitatively evaluate the state of the metal phase in the tin-based plated layer by measuring the mechanical strength of the joint surface between the tin-based plated steel sheet and the resin film set in the predetermined temperature range.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a high-temperature adhesion quantitative test device for tin-based plated steel sheet according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a tensile test piece of Example 1 in the same high temperature adhesion quantitative test device.

FIG. 3 is an explanatory diagram of the same high temperature adhesion quantitative test device.

FIG. 4 is an explanatory diagram of the same high temperature adhesion quantitative test device.

FIG. 5 is a diagram showing a change in tensile force with time.

6 (a), (b), and (c) are tensile test pieces of Examples 2 to 4, respectively, to which the high-temperature adhesion quantitative test method for tin-based plated steel sheet according to one embodiment of the present invention is applied. It is a sectional side view.

FIG. 7 is a view showing a welded state of a steel can coated with a resin film.

FIG. 8 is a diagram showing a method of evaluating adhesion between a resin film and a tin-based plated steel sheet according to a conventional example at high temperature.

[Explanation of symbols]

10 High Temperature Adhesion Quantitative Test Device 11 Support 11a Support 11b Support 11c Support 12 Pull Handle 12a Pull Handle 12b Pull Handle 12c Pull Handle 13 Resin Film 14 Tin-Based Plated Steel 15 Tin-Based Plating Layer 16 Tensile Test Piece 16a Tensile Test piece 16b Tensile test piece 16c Tensile test piece 17 Frame 18 Opening 19 Magnet 20 Heat insulating material 21 Hot plate 22 Jack 23 Grasping member 24 Steel plate 25 Heat-resistant double-sided adhesive tape

Claims (5)

[Claims] 1. A method for quantitatively testing the adhesion of a tin-based plated steel sheet at high temperature for evaluating the adhesion of a resin coating adhered or fused to the tin-based plated steel sheet, wherein a support provided with a pull handle on one surface of the resin film. After the other side of the resin film was laminated on a tin-plated steel sheet with an adhesive or an adhesive, a tensile test piece was prepared, and the tensile test piece was placed on a pedestal of a heating device. A method for quantitatively testing a tin-based plated steel sheet at high temperature, comprising heating a tin-based plated steel sheet as a tensile test piece to a predetermined temperature and pulling a pull handle of the support to measure the tensile force. 2. The tin-based plating according to claim 1, wherein the support has an L-shaped shape by bending an end surface of a strip-shaped plate, and the bent portion is used as a pull handle. High temperature adhesion test method for steel sheet. 3. The high temperature adhesion quantitative test method for tin-based plated steel sheet according to claim 1, wherein the support is made of a flexible material such as rubber or plastic. 4. The heat-resistant double-sided adhesive tape or the heat-resistant double-sided adhesive tape, wherein the resin film is preliminarily coated with an adhesive or a pressure-sensitive adhesive on both sides, according to any one of claims 1 to 3. Quantitative test method for high temperature adhesion of tin-plated steel sheet as described. 5. A tensile test piece is prepared by sequentially laminating a support, a resin film, and a tin-based plated steel sheet with an adhesive or a pressure-sensitive adhesive, and the resin film of the tensile test piece and the tin-based plated steel sheet. In a high-temperature adhesiveness quantitative test apparatus for tin-based plated steel sheet for measuring the tensile force when peeling off and, a hot plate for heating the tensile test piece to a predetermined temperature by bringing the tensile test piece into contact with the hot plate, and the hot plate And an elevating means for moving the elevating means, a pedestal for holding the elevating means and detachably arranging the tensile test piece in an upper opening portion, and a pedestal arranged above the pedestal for pulling a support body of the tensile test piece. And a tensile tester that measures the tensile force of the tin-based plated steel sheet.