JPS5866837A - Measuring method for adhesive strengh of film layer - Google Patents
Measuring method for adhesive strengh of film layerInfo
- Publication number
- JPS5866837A JPS5866837A JP16592681A JP16592681A JPS5866837A JP S5866837 A JPS5866837 A JP S5866837A JP 16592681 A JP16592681 A JP 16592681A JP 16592681 A JP16592681 A JP 16592681A JP S5866837 A JPS5866837 A JP S5866837A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- coating layer
- jig
- groove
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0091—Peeling or tearing
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は被膜層の密着力測定方法に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for measuring adhesion of a coating layer.
近年自動車用エンジンの軽量化を図るため従来の鋳鉄シ
リンダに代えてアルミ合金シリンダが製造されているが
、アルミ合金は鋳鉄に比べて耐摩耗性が低いため、シリ
ンダの摺動面」こクロームメッキ、火炎溶射、線爆溶射
等の方法により硬質の被膜層を形成し、シリンダの耐摩
耗性を向上させることが行なわれている。このような被
膜層を形成したシリンダにおいては、該被膜層には耐摩
耗性の他にも耐剥離性が当然要求されるため、被膜層と
シリンダとの密着力の大きさを測定することが重要であ
る。In recent years, aluminum alloy cylinders have been manufactured in place of conventional cast iron cylinders to reduce the weight of automobile engines, but since aluminum alloys have lower wear resistance than cast iron, the sliding surfaces of the cylinders are not chrome plated. In order to improve the wear resistance of cylinders, hard coating layers are formed by methods such as , flame spraying, and wire bombardment spraying. In a cylinder on which such a coating layer is formed, the coating layer is naturally required to have peeling resistance in addition to wear resistance, so it is difficult to measure the adhesion between the coating layer and the cylinder. is important.
そこで従来は次のような被膜層の密着力測定方法が採用
されていた。ｉ８１図ないし第３図は従来方法を説明す
るための図で、ＩＪ１図は母材１と治具２との間に引張
力Ｆを加えた状態を、第２図は被膜層３と治具２とが剥
離した状態を、第３図は母材１と被膜層３とが剥離した
状態を示す。即ち従来の方法は母材１０面積Ｓの被覆面
１＆に被膜層３を形成し、該被膜層３と同一面積Ｓの接
合面２ａを有する治具２を該被膜層３に接着剤４を介し
て接合し、この状態において母材１と治具２との間に引
張力Ｆを付与し、母材１と被膜層３とが剥離した瞬間の
引張力ＦＯを計測し、これを上記面積Ｓで除して被膜層
３の密着力ｆ＝Ｆｏ／Ｓを測定するものであった。とこ
ろで、この従来方法では被膜層３の密着力よりも接着剤
４の接合力の方が大きいときは、上記引張力Ｆを漸次増
加させれば第３図に示すように母材１と被膜層３とが先
に剥離するので、上記密着力の測定ができ、問題はない
。しかし上記密着力よりも上記接合力の方が小さいとき
は、第２図に示すように治具２と被膜層３とが先に剥離
してしまうので、上記密着力の測定ができないという問
題があった。そのため従来の方法では接合力の高い接着
剤を使用する必要があり、熱硬化型の接着剤を採用せざ
るを得す、その結果恒温硬化炉の設備が必要であり、し
かも接着剤の硬化に長時間を要する等密着力測定の作業
性が悪いという問題があった。Therefore, conventionally, the following method for measuring the adhesion of the coating layer has been adopted. Figures i81 to 3 are diagrams for explaining the conventional method. Figure IJ1 shows the state in which a tensile force F is applied between the base material 1 and the jig 2, and Figure 2 shows the state in which the tensile force F is applied between the base material 1 and the jig 2. FIG. 3 shows a state in which the base material 1 and the coating layer 3 have been separated. That is, in the conventional method, a coating layer 3 is formed on a coating surface 1& of an area S of a base material 10, and a jig 2 having a bonding surface 2a having an area S equal to that of the coating layer 3 is attached to the coating layer 3 via an adhesive 4. In this state, a tensile force F is applied between the base material 1 and the jig 2, and the tensile force FO at the moment when the base material 1 and the coating layer 3 are separated is measured. The adhesion force f=Fo/S of the coating layer 3 was measured by dividing by . By the way, in this conventional method, when the bonding force of the adhesive 4 is greater than the adhesion force of the coating layer 3, by gradually increasing the tensile force F, the base material 1 and the coating layer are bonded as shown in FIG. 3 peels off first, so the above-mentioned adhesion can be measured and there is no problem. However, when the bonding force is smaller than the adhesion force, the jig 2 and the coating layer 3 will peel off first, as shown in FIG. 2, so there is a problem that the adhesion force cannot be measured. there were. Therefore, in conventional methods, it is necessary to use adhesives with high bonding strength, and thermosetting adhesives have no choice but to be used.As a result, constant temperature curing oven equipment is required, and the curing of the adhesive is difficult. There was a problem in that the workability of measuring adhesion force was poor, which required a long time.
この発明は以上のような従来の問題点に鑑みてなされた
もので、引張力が作用する母材と被膜層との接′合面の
面積を被膜層と治具との接合面の面積より小さくするこ
とにより、接着剤の接合力よりも大きい被膜層３．の密
着力を測定でき、しかも常温硬化型の接着剤を使用でき
るため、恒温硬化炉の設備も必要としない極めて作業性
の良い被膜層の密着力測定方法を提供することを目的と
している。This invention was made in view of the above-mentioned conventional problems, and the area of the bonding surface between the base material and the coating layer on which tensile force acts is determined from the area of the bonding surface between the coating layer and the jig. By making the coating layer smaller, the bonding force of the adhesive is greater than that of the coating layer 3. The purpose of the present invention is to provide a method for measuring the adhesion of a coating layer that is extremely easy to work with and does not require a constant temperature curing oven because it can measure the adhesion of a film and can use a room-temperature curing adhesive.
以下本発明の一実施例を図について説明する。An embodiment of the present invention will be described below with reference to the drawings.
第４図および第５図は本発明の一実施例による被膜層の
密着力測定方法を説明するための図で、第４図は母材１
と治具２との間に引張力Ｆを加えた状態を、第５図は母
材１と被膜層３とが剥離した状態を示す。4 and 5 are diagrams for explaining a method for measuring adhesion of a coating layer according to an embodiment of the present invention, and FIG. 4 shows a base material 1
FIG. 5 shows a state in which a tensile force F is applied between the base material 1 and the jig 2, and a state in which the base material 1 and the coating layer 3 are separated.
先ず母材１を円柱状の棒体にしてその端面を面積Ｓｓの
被覆面１ａとし、該被覆面１ｚの中央部に所定深さの環
状の溝１ｂを形成して該溝１ｂに囲まれた部分を独立部
ＩＣとし、該独立部ＩＣを囲む部分を外周部１ｄとする
。次に上記溝１ｂと同一形状で母材１と同一材質の円筒
状の中空部材５を上記溝１ｂに嵌入し、該中空部材５、
上記独立部１ｃ、上記外周部１ｄのそれぞれの端面によ
り被覆面１為を平滑に形成する。次に該被覆面１ｍに被
膜層３を形成し、該被膜層３に接着剤４を介して母材１
と同径の円柱状の治具２の接合面２ｍを接合する。従っ
て該接合面２ｓｌの面積は上記被覆面１＆の面積Ｓ２と
同一であり、上記独立部ＩＣの端面でする被覆面１ａ＋
の面積Ｓ１よりも大きくなる。ここで上記接着剤４は後
に述べる理由により常温硬化型のものでよい。次に上記
外周部１ｄを母材１から切り離すように母材１の側面全
周から上記溝１ｂに至る切り込みＩＣを入れる。この切
り込み１ｅは図では上記溝１ｂの底の位置に入れている
が、これは必ずしも底でなくてもよい。First, the base material 1 is made into a cylindrical rod, the end surface of which is made into a covering surface 1a having an area Ss, and an annular groove 1b of a predetermined depth is formed in the center of the covering surface 1z, surrounded by the groove 1b. The portion is referred to as an independent portion IC, and the portion surrounding the independent portion IC is referred to as an outer peripheral portion 1d. Next, a cylindrical hollow member 5 having the same shape as the groove 1b and made of the same material as the base material 1 is fitted into the groove 1b, and the hollow member 5,
The covering surface 1 is formed to be smooth by the respective end faces of the independent portion 1c and the outer peripheral portion 1d. Next, a coating layer 3 is formed on 1 m of the coating surface, and the base material 1 is attached to the coating layer 3 via an adhesive 4.
The joint surfaces 2m of the cylindrical jig 2 having the same diameter as the joint surface 2m are joined. Therefore, the area of the joint surface 2sl is the same as the area S2 of the covered surface 1&, and the covered surface 1a+ formed by the end surface of the independent portion IC
is larger than the area S1. Here, the adhesive 4 may be of a room temperature curing type for reasons described later. Next, a cut IC is made from the entire side surface of the base material 1 to the groove 1b so as to separate the outer peripheral portion 1d from the base material 1. Although this cut 1e is shown at the bottom of the groove 1b in the figure, this does not necessarily have to be the bottom.
次に母材１と治具２との間に上記被覆面１ａに直角方向
に引張力Ｆを付与し、該引張力Ｆを漸次増加させていく
。この場合上述の如く被覆面 、１の面積Ｓ１よりも接
合面２′＆の面積Ｓ２の方が大きいので、被褌面１ａ′
に生じる引張応力ｆ＋ ＝Ｆ／Ｓ＋４を接合面２３に生
じる引張応力９＝Ｆ／Ｓｇより大きくなる。そのため母
材１と被膜層３とが先に剥離するので、両者が剥離した
瞬間の引張力ＦＯを計測し、これを上記被覆面１＠′の
面積Ｓ＋で除すれば被膜層３の密着力の測定ができる。Next, a tensile force F is applied between the base material 1 and the jig 2 in a direction perpendicular to the covered surface 1a, and the tensile force F is gradually increased. In this case, as mentioned above, the area S2 of the joint surface 2'& is larger than the area S1 of the covered surface 1, so the covered surface 1a'
The tensile stress f+ =F/S+4 generated at the bonding surface 23 becomes greater than the tensile stress 9=F/Sg generated at the joint surface 23. Therefore, the base material 1 and the coating layer 3 peel off first, so the adhesion force of the coating layer 3 is determined by measuring the tensile force FO at the moment when both are peeled off, and dividing this by the area S+ of the coating surface 1@'. can be measured.
このように本発明方法によれば、被膜１ｉ３の密着力よ
りも接着剤４の接合力の方が小さい場合でも、母材１と
被膜層３とが先に剥離するので、その瞬間の引張力Ｆｏ
を計測でき、被膜層３の密着力を測定できる。また上記
のとおり接着剤４の接合力が小さくて済むため、従来使
用している熱硬化型の接着剤に代えて常温硬化型の接着
剤を使用できるので、恒温硬化炉の設備を必要とせず、
しかも接着剤の硬化に要する時間が短縮され、作業性が
向上する。As described above, according to the method of the present invention, even if the bonding force of the adhesive 4 is smaller than the adhesion force of the coating 1i3, the base material 1 and the coating layer 3 are peeled off first, so that the tensile force at that moment Fo
can be measured, and the adhesion of the coating layer 3 can be measured. Furthermore, as mentioned above, since the bonding force of the adhesive 4 is small, a room temperature curing adhesive can be used instead of the conventionally used thermosetting adhesive, so there is no need for constant temperature curing furnace equipment. ,
Moreover, the time required for curing the adhesive is shortened, and workability is improved.
なお上記実施例では被膜層３をより容易に被覆面１＠に
形成できる点を考慮し、中空部材５は母材１と同一材質
のものであるとしたが、これは必ずしも同一材質でなく
てもよい。また外周部１ｄを母材１から切り離す工程は
、被膜層３に治具２を接合する工程の後としたが、これ
は被覆面１ｍに被膜層３を形成した後であれば被膜層３
に治具２を接合する工程の前としてもよい。In the above embodiment, the hollow member 5 is made of the same material as the base material 1 in consideration of the fact that the coating layer 3 can be more easily formed on the coating surface 1@, but this does not necessarily mean that the material is the same. Good too. Furthermore, the step of separating the outer circumferential portion 1d from the base material 1 was performed after the step of joining the jig 2 to the coating layer 3, but this could be done after the coating layer 3 was formed on the coating surface 1m.
This may be done before the step of joining the jig 2 to the.
以上のように本発明に係る被膜層の密着力測定方法によ
れば、母材の被覆面に環状の溝を形成して、該母材の端
部を該溝に囲まれた独立部と該独立部を囲む外周部とに
分け、上記溝と同形状の中空部材を上記溝に嵌入し、上
記被覆面に被膜層を形成し、該被膜層に接着剤を介して
治具を接合し、上記外周部を母材から切り離し、母材と
治具との間に引張力を付与して母材と被膜層とが剥離し
た瞬間の引張力を計測するようにしたので、接着・剤の
接合力が被膜層の密着力よりも小さい場合でも被膜層の
密着力を測定でき、また常温硬化型の接着剤を使用でき
るので恒温硬化炉の設備を必要とせず、しかも接着剤の
硬化に長時間を要しないので密着力測定の作業性を向上
できるという効果がある。As described above, according to the method for measuring adhesion of a coating layer according to the present invention, an annular groove is formed on the coating surface of the base material, and the end of the base material is connected to the independent part surrounded by the groove. dividing the independent part into an outer peripheral part surrounding the independent part, fitting a hollow member having the same shape as the groove into the groove, forming a coating layer on the coating surface, and joining a jig to the coating layer via an adhesive; The above-mentioned outer peripheral part is separated from the base material, tensile force is applied between the base material and the jig, and the tensile force at the moment when the base material and the coating layer are separated is measured, so the adhesive/agent bonding The adhesion of the coating layer can be measured even when the force is smaller than the adhesion of the coating layer, and since it is possible to use an adhesive that cures at room temperature, there is no need for constant temperature curing oven equipment, and it takes a long time to cure the adhesive. This method has the effect of improving the workability of adhesion measurement.
第１図ないし第３図は従来の被膜層の密着力測定方法を
説明するための図で、第１図は母材と治具との間に引張
力を加えた状態の側面図、第２図は治具と被膜層とが剥
離した状態の側面図、第３図は母材と被膜層とが剥離し
た状態の側面図、第４図および第５図は本発明の一実施
例による被膜層の密着力測定方法を説明するための図で
、８４図は母材と治具との間に引張力を加えた状態の一
部断面側面図、第５図は母材と被膜層とが剥離した状態
の一部断面側面図である。
１・・母材 １ａ・・・被覆面 １玖′・・・独立
部の被覆面 １ｂ・・・溝 １ｃ・・・独立部
１ｄ・・・外周部 ＩＣ・・・切り込み ２・・・
治具 ２ａ・・・接合面 ３・・・被膜層 ４・
・・接着剤 ５・・・中空部材
特許出願人 東洋工業株式会社
代理人 弁理士 早 瀬 憲 −Figures 1 to 3 are diagrams for explaining the conventional method for measuring adhesion of a coating layer. Figure 1 is a side view of the state in which tensile force is applied between the base material and the jig, The figure is a side view of the jig and the coating layer separated, FIG. 3 is a side view of the base material and the coating layer separated, and FIGS. 4 and 5 are coatings according to an embodiment of the present invention. These diagrams are for explaining the method for measuring layer adhesion. Figure 84 is a partial cross-sectional side view with tensile force applied between the base material and the jig, and Figure 5 is a diagram showing the relationship between the base material and the coating layer. FIG. 3 is a partially cross-sectional side view of a peeled state. 1...Base material 1a...Coated surface 1'...Coated surface of independent part 1b...Groove 1c...Independent part
1d...Outer periphery IC...Notch 2...
Jig 2a...Joint surface 3...Coating layer 4.
... Adhesive 5 ... Hollow member patent applicant Toyo Kogyo Co., Ltd. agent Patent attorney Ken Hayase −
Claims (1)
治具を接合し、母材と治具とを被覆面に直角な方向に引
張って母材と被膜層との密着力を測定する方法であって
、上記母材を棒体にしてその端面を被覆面としこの被覆
面に所定深さの環状の溝を形成して上記母材の中央部に
この溝に囲まれた独立部を設け、上記溝と同形状の中空
部材を上記溝内に嵌入して上記被覆面を平坦に成し、該
被覆面に上記独立部の被覆面より広い面積の被膜層を形
成し、該被膜層に接着剤を介して治具を接合し、上記母
材の側面全周から上記溝に至る切り込みを入れて上記母
材から上記独立部を囲む外周部を切り離し、上記治具と
上記母材との間に引張力を付与して上記母材の独立部と
上記被膜層とが剥離した瞬間の上記引張力を計測するこ
とを特徴とする被膜層の密着力測定方法。(1) A jig is bonded to the coating layer formed on the coating surface of the base material via adhesive, and the base material and the jig are pulled in a direction perpendicular to the coating surface to strengthen the adhesion between the base material and the coating layer. In this method, the base material is made into a rod, the end surface thereof is a coating surface, an annular groove of a predetermined depth is formed in the coating surface, and the center part of the base material is surrounded by this groove. an independent portion is provided, a hollow member having the same shape as the groove is fitted into the groove to make the coated surface flat, and a coating layer having a wider area than the coated surface of the independent portion is formed on the coated surface; A jig is bonded to the coating layer via an adhesive, a cut is made from the entire side surface of the base material to the groove, and the outer circumferential portion surrounding the independent portion is separated from the base material, and the jig and the above are cut. A method for measuring adhesion of a coating layer, comprising applying a tensile force to a base material and measuring the tensile force at the moment when the independent portion of the base material and the coating layer are separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16592681A JPS5866837A (en) | 1981-10-17 | 1981-10-17 | Measuring method for adhesive strengh of film layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16592681A JPS5866837A (en) | 1981-10-17 | 1981-10-17 | Measuring method for adhesive strengh of film layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5866837A true JPS5866837A (en) | 1983-04-21 |
| JPH0125416B2 JPH0125416B2 (en) | 1989-05-17 |
Family
ID=15821630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16592681A Granted JPS5866837A (en) | 1981-10-17 | 1981-10-17 | Measuring method for adhesive strengh of film layer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5866837A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207145A (en) * | 2013-03-19 | 2013-07-17 | 湖北航天化学技术研究所 | Mechanism for testing rubber bonding strength of lamp brackets |
| WO2016061477A1 (en) | 2014-10-16 | 2016-04-21 | Sikorsky Aircraft Corporation | Coating bond test method and method of making a specimen for testing bond strength of a coating |
| CN109238958A (en) * | 2018-11-19 | 2019-01-18 | 广东省工业分析检测中心 | A kind of test method of the superpower bond strength of coating |
| CN112986132A (en) * | 2021-02-05 | 2021-06-18 | 慕思健康睡眠股份有限公司 | Method for testing adhesion fastness of hot melt adhesive |
-
1981
- 1981-10-17 JP JP16592681A patent/JPS5866837A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103207145A (en) * | 2013-03-19 | 2013-07-17 | 湖北航天化学技术研究所 | Mechanism for testing rubber bonding strength of lamp brackets |
| WO2016061477A1 (en) | 2014-10-16 | 2016-04-21 | Sikorsky Aircraft Corporation | Coating bond test method and method of making a specimen for testing bond strength of a coating |
| EP3207351A4 (en) * | 2014-10-16 | 2018-07-11 | Sikorsky Aircraft Corporation | Coating bond test method and method of making a specimen for testing bond strength of a coating |
| US10048180B2 (en) | 2014-10-16 | 2018-08-14 | Sikorsky Aircraft Corporation | Coating bond test method and method of making a specimen for testing bond strength of a coating |
| CN109238958A (en) * | 2018-11-19 | 2019-01-18 | 广东省工业分析检测中心 | A kind of test method of the superpower bond strength of coating |
| CN112986132A (en) * | 2021-02-05 | 2021-06-18 | 慕思健康睡眠股份有限公司 | Method for testing adhesion fastness of hot melt adhesive |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0125416B2 (en) | 1989-05-17 |
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