• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method for manufacturing at least one test piece, in particular made of a fiber reinforced material, for the quality test of an adhesive joint. At least two panel-shaped joint parts 2, 3 are provided. Each of the joining parts 2, 3 comprises at least one protrusion 8 formed in one of the edge sections so as to form a single piece. The joining parts 2, 3 are then joined together in such a way that the longitudinal edges 4 of the joining parts 2, 3 and their projections 8 essentially overlap. An adhesive bond is then formed in the region between the longitudinal edges 4 which are joined together. The protrusions 8 of the joining parts 2, 3, which are joined on the longitudinal edge 4, are then separated from the joining parts 2, 3, and at the same time the joining part is cut. The separated protrusion 8 is provided as a test piece 14.
    公开号:KR20020033824A
    申请号:KR1020027003798
    申请日:2000-09-21
    公开日:2002-05-07
    发明作者:울리케 괘르셜；토마스 크루쉬비츠；얀 프로카트
    申请人:추후제출；다이믈러크라이슬러 아게；
    IPC主号:
    专利说明:

    TECHNICAL FOR PRODUCING AT LEAST ONE TESTING BODY, ESPECIALLY CONSISTING OF A FIBRE-REINFORCED MATERIAL, FOR TESTING THE QUALITY OF AN ADHESIVE JOINT}
    [2] In the manufacture of freight car bodies for rail vehicles, it is known to join individual fiber reinforced components of the freight car body with adhesive bonds. Such adhesive joints between the components of the freight car are exposed to both the high loads and the static loads and stresses that may occur in the freight car body, for example, when the rail car moves along the bend. In particular, it should therefore be ensured that the adhesive bonds withstand the forces and stresses occurring between the bonded components. This is accomplished by testing the quality of the adhesive bond. Significant requirements must be imposed on the accuracy of the test results to ensure that the fiber reinforced components remain firm to each other, even when the adhesive bonds are subjected to static and dynamic stresses.
    [3] To investigate or determine the quality of the adhesive bonds, the individual fiber reinforcement portions having small dimensions are bonded to each other by the adhesive bonds in a conventional manner so as to form a test piece in a test laboratory. The adhesive seam of the test piece, which is made in this way under laboratory conditions, is then tested in terms of its quality. While representative characteristic values of the adhesive joints between the fiber reinforced components can be determined using these test pieces, test pieces fabricated under laboratory conditions may be used to fabricate the actual bonding conditions that occur primarily in the components used in the vehicle body. There is a problem that does not go through. Thus, upon examination of the test piece in the laboratory, the processing temperature, air humidity, pressure, degree of contamination in the plant to which the component is bonded, the quality of the pretreatment of the component actually performed, and the displacement and stress at the bonding As such, additional factors affecting the quality of the adhesive joint are not identified, nor are they included in the quality assessment of the adhesive joint. Thus, it is not always possible to determine sufficiently accurate characteristic values of adhesive bonds between components formed under the actual conditions to be determined, using test pieces made in a known manner.
    [1] The present invention relates to a method for manufacturing at least one test piece, in particular made of fiber reinforced material, for testing the quality of an adhesive joint.
    [16] 1 is a partial perspective view of the bonding portions bonded together in accordance with the present invention;
    [17] 2 is a partial perspective view of the joining portion and the protrusions shown in a separated state.
    [18] 3 is a perspective view of a test piece section.
    [4] Accordingly, the present invention is based on the object of providing a method for manufacturing a test piece obtained from an adhesive joint formed under actual conditions, at low cost and structurally low in terms of labor and time.
    [5] This object is achieved by the method described in claim 1.
    [6] Thus, in order to fabricate at least one test piece, at least two panel-shaped joining portions are first provided. In this case, the joints are individual components that can be used in the side wall, floor or ceiling area of the freight body, for example for producing a freight body for a rail vehicle. For use as components of freight cars, it has proven beneficial to form joints with fiber reinforced materials, in particular fiber reinforced plastics. This allows the fabrication of a stable freight car with a relatively low weight that can be achieved in a preferred manner. Moreover, each joining portion has at least one projection formed integrally on at least one of the edge sections. Thus, the protrusion is integrally connected to the edge section of the joining portion, as a result of which the joining portion and the protrusion can be fabricated from one workpiece. Each joining portion can thus be cut out, for example, from a fiber reinforced panel with each protrusion disposed thereon. The shape of the individual joints actually coincides generally with the functional dimensions of the joints in connection with their use, such as for example for installation of freight bodies. However, due to the protrusions designed as panel-shaped extensions of the edge sections of the joint portions, the joint portions take different contours than their functional dimensions. The formation of the projections thus means that additional material is provided on the joint portion provided with the test piece material.
    [7] After provision of the panel-shaped joining portion, at least two joining portions are joined according to the actual joining conditions in such a way that the longitudinal edges of one joining portion essentially overlap with the longitudinal edges of the other joining portion. In this case, the term "longitudinal edge" of the joining portion should be understood as an edge region that is continuously connected along the joining portion and a protrusion integrally formed thereon. The longitudinal edge thus extends along the edge region of the joining portion and the integrally formed protrusion. Next, the adhesive is injected into the area between the longitudinal edge of the opposing joining portion and its protrusion. This ensures the formation of adhesive joints for joining the joint portions together.
    [8] After the joining portions are glued along their longitudinal edges, the projections bonded to each other at the longitudinal edges are cut from the joining portions. In this cutting of the projections, the joint parts joined together are cut simultaneously to their functional value in connection with future use, such as for example used as components of a truck body. Further correspondence to the required dimensions and functional geometry of the joined joint portion can thus be omitted. This greatly simplifies the manufacturing process. The cut protrusions, including the adhesive joints of the bonded joints under actual conditions, are then provided as test pieces for investigating the quality of the adhesive joints between the joints.
    [9] The above-described method for manufacturing the test piece can be performed simple, fast and at relatively low cost, since the test piece can be obtained in the manufacture of the joint part. The additional work steps required to fabricate the test piece under laboratory conditions are thus omitted. In particular, however, a test piece is provided, wherein the adhesive bond has the properties of the adhesive seam actually formed on the joint and thus serves as documentation for the adhesion process actually performed and can also be used to test this bonding process. .
    [10] Advantageous embodiments of the method according to the invention are described in the other claims.
    [11] The cut test piece is preferably divided into a plurality of individual test piece sections. This division of the test piece firstly allows a proportion to be produced in relation to the size of the test piece, which facilitates the handling and accurate positioning of the test piece section upon examination of the adhesive joint. Secondly, a plurality of test pieces are obtained, and the quality of the adhesive bond can be tested for each of these test pieces. This makes it possible to carry out repeated tests of adhesive bonds formed under real conditions and to confirm the test results accordingly.
    [12] According to a preferred embodiment of the method according to the invention, an essentially dimensioned joint is used. This allows the joining portions to be mirror symmetrically joined at their longitudinal edges, in which case the overlapping of the longitudinal edges can be made easy due to the matching geometry.
    [13] In the formation of the adhesive joint, it is preferable that at least one adhesive shim is formed between the joint portions by the adhesive joint. In this regard, the adhesive shim preferably extends parallel to and along the longitudinal edge of the joining portion essentially in the region where the joining portion and the longitudinal edge of the protrusion disposed thereon overlap. This arrangement of the adhesive shim ensures a secure and secure joint between the joint portions.
    [14] For shaping the test piece and the individual test piece sections, when cutting them from the bonded joints, the protrusions and / or the individual test piece sections are essentially perpendicular to the adhesive seam extending through the protrusions or test pieces. It is preferable to cut or split. This placement of the point of separation essentially perpendicular to the adhesive seam and the longitudinal edge significantly simplifies the handling of the cut test piece in the subsequent quality test of the test piece.
    [15] The invention will be described in more detail below with reference to the embodiments illustrated in the drawings by way of example.
    [19] As shown in FIG. 1, two panel-shaped joining parts 2, 3 are joined at their longitudinal edges 4. Each of the longitudinal edges 4 is parallel to the essentially straight end side 12 of the joining portions 2, 3 along the entire longitudinal length of the panel-shaped joining portions 2, 3. Stretched In this case, the two joining parts 2, 3 are in their dimensions coincident and are located essentially opposite each other in mirror symmetry. Each joining portion 2, 3 extends to its edge section 6, from the edge section 6 of the joining portion 2, 3 to the right in a plane of projection, and has an integrally formed rectangular protrusion. Has (8). The protrusion 8 is designed to protrude above the edge section 6 of the joining parts 2, 3 in a manner that overlaps the edge section 6 to the right. This allows the shape of the protrusion 8, which is required as a panel-shaped extension of the edge section 6 of the joining parts 2, 3, to be achieved in a structurally simple manner.
    [20] The joining portions 2, 3 and the longitudinal edges 4 of the projections 8 are arranged essentially parallel to each other and overlap along their entire longitudinal length. An adhesive layer is provided in the overlapping region of the longitudinal edges 4, with the result that the two joining portions 2, 3 are glued to each other with an intervening element 10 inserted therebetween. Therefore, by means of an adhesive joint provided in the region between the overlapping longitudinal edges 4 of the joint portions 2, 3, between the upper joint portion 2 and the intervening element 10 and between the intervening element 10 and the bottom An adhesive seam is formed between the joining portions 3. This adhesive shim ensures reliable adhesion of the joining parts 2, 3 to each other and extends continuously along the joining parts 2, 3 and their integrally formed projections 8. The protrusions 8, which are provided as components of the joining parts 2, 3 in the construction of the joining parts 2, 3, are for example joined parts 2, such as pretreatment at the joining, environmental influences and stresses. , Is exposed to the same bonding conditions as 3).
    [21] After the joining parts 2, 3 are joined together according to FIG. 1, the projections 8 are cut out from the joining parts 2, 3 according to FIG. 2. In this process, the bonded joints 2 and 3 are functional geometrical shapes that are associated with later use, for example as used as components for the freight car body of a railway vehicle (shown on the left in FIG. 2). Get In contrast, the cut protrusion 8 is used as a test piece 14 for determining and / or examining the quality and the characteristic value of the adhesive joint obtained between the joint portions 2, 3. The adhesive bond of the test piece 14 has the properties of the adhesive seam, which is constructed under actual conditions, between the joint portions 2, 3, and thus serves as a material for the bonding process actually performed and also used to test this bonding process. do.
    [22] In Fig. 3 there is diagrammatically arranged a projection 8 cut in Fig. 2 and bonded to each other with a test piece 14, which can also be divided into individual test piece sections 16. These test piece sections 16 are, firstly, easier to handle than the test piece 14 when testing the adhesive joint due to their small size. Secondly, testing of a plurality of adhesive bonds can be performed in this manner, which increases the accuracy of the quality test results of the adhesive bonds.
    [23] The method according to the invention can be used not only for the adhesive joints between fiber reinforced materials, but also for the pairing of materials, such as plastic / plastic, metal / plastic and metal / metal.
    [24] As mentioned above, the present invention can be used in a method of manufacturing at least one test piece, in particular made of fiber reinforced material, for testing the quality of an adhesive bond.
    权利要求:
    Claims (5)
    [1" claim-type="Currently amended] A method of manufacturing at least one test piece 14, in particular made of a fiber reinforced material, for testing the quality of an adhesive joint,
    (a) at least two panel-shaped joining parts, each comprising at least one projection 8 integrally formed in at least one edge section among the edge sections 6 ( 2, 3),
    (b) joining the joining portions 2, 3 such that the longitudinal edges 4 of the joining portions 2, 3 and the protrusions 8 essentially overlap;
    (c) forming an adhesive bond in the region between the joined longitudinal edges 4,
    (d) cutting the protrusions 8 joined at the longitudinal edges 4 from the joining parts 2, 3, wherein the joining parts 2, 3 are simultaneously cut to have a predetermined size, Steps,
    (e) providing the cut protrusion 8 to a test piece 14
    Including, method.
    [2" claim-type="Currently amended] Method according to claim 1, characterized in that the cut test piece (14) is divided into a plurality of test piece sections (16).
    [3" claim-type="Currently amended] Method according to one of the preceding claims, characterized in that a joining portion (2, 3) is used which essentially coincides in dimensions.
    [4" claim-type="Currently amended] 4. The method according to claim 1, wherein at least one adhesive seam is formed by the adhesive bond. 5.
    [5" claim-type="Currently amended] 5. Method according to claim 4, characterized in that during step (d), the protrusions (8) and / or the individual test piece sections (16) are cut essentially perpendicular to the adhesive shim.
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    同族专利:
    公开号 | 公开日
    DE19945556A1|2001-03-29|
    CN1384918A|2002-12-11|
    EP1221031A1|2002-07-10|
    WO2001022054A1|2001-03-29|
    JP2003510563A|2003-03-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1999-09-23|Priority to DE19945556.2
    1999-09-23|Priority to DE1999145556
    2000-09-21|Application filed by 추후제출, 다이믈러크라이슬러 아게
    2000-09-21|Priority to PCT/EP2000/009238
    2002-05-07|Publication of KR20020033824A
    优先权:
    申请号 | 申请日 | 专利标题
    DE19945556.2|1999-09-23|
    DE1999145556|DE19945556A1|1999-09-23|1999-09-23|Method for producing at least one test specimen, in particular made of fiber composite material, for a quality test of an adhesive connection|
    PCT/EP2000/009238|WO2001022054A1|1999-09-23|2000-09-21|Method for producing at least one testing body, especially consisting of a fibre-reinforced material, for testing the quality of an adhesive joint|
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