Fixing device for atmospheric corrosion sample of zinc-aluminum-magnesium coating sheet

Abstract

The utility model discloses a fixing device for a zinc-aluminum-magnesium coating thin plate atmospheric corrosion sample, which comprises a main body bracket, the upper end of the main body bracket is connected with a supporting end, two sides of the supporting end are detachably connected with positioning plate grooves, the positioning plate grooves are detachably connected with a batten assembly for fixing the thin plate corrosion sample, and the batten assembly is connected with the main body bracket. Moving wheels are arranged at the bottom of the main body support, the bottom of the supporting end is movably connected with the main body support through a hinged end, and a positioning counter bore set is formed in the batten assembly and matched with a non-metal material fixing structure. According to the fixing device, the thin-plate corrosion sample is stably fixed at three points, the material of the device for fixing the sample does not influence the base material of the sample, the non-metal does not interfere with the corrosion resistance of the sample, the device has the effects of stably fastening the sample and isolating the sample from the metal exposure frame, and the corrosion sample is convenient to assemble and disassemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of corrosion resistance of metal materials, and in particular relates to a fixing device for atmospheric corrosion samples of zinc-aluminum-magnesium coated thin plates. Background Art

[0002] At present, in the research on the corrosion performance of metal and its covering layer products, in order to obtain its corrosion resistance data in atmospheric environment, study the complex relationship between the corrosion rate of metal and its covering layer and the atmosphere, accurately test the experimental data, and predict the performance of the product, atmospheric corrosion tests are usually used to conduct a series of tests on the corrosion performance of metal and its covering layer products. Conducting a series of tests under atmospheric environmental conditions to obtain corresponding experimental data and conduct information and data analysis is an important means of material corrosion resistance testing and performance analysis of metal and its covering layer products.

[0003] Most of the atmospheric corrosion exposure test devices in the prior art are fixed brackets (the prior art discloses application number CN201621333764.3, an atmospheric corrosion exposure test frame for harsh environments). After the workpiece to be tested is placed on the bracket, the angle of the workpiece cannot be adjusted, and the angle of the workpiece to be tested cannot be adjusted according to the angle of light in the environment and the angle of rain impact. At the same time, in order to strictly install the atmospheric corrosion specimens in accordance with the national standard requirements of corrosion experiments, the existing metal property connection between the fixing device and the specimen and between the specimen and the exposure frame during the atmospheric corrosion test affects the contact corrosion of the specimen, and cannot meet the national standard experimental requirements of atmospheric corrosion specimens of zinc-aluminum-magnesium coated thin plates.

[0004] In view of the above factors, a fixing device for atmospheric corrosion samples of zinc-aluminum-magnesium coated thin plates is specially designed to achieve safe, isolated and stable fixing of samples, convenient loading and unloading of samples, and improved detection efficiency of atmospheric corrosion tests and collection of large amounts of experimental data. The sample group fastened to the exposure rack must meet the conditions of atmospheric corrosion tests of standard metals and their covering thin plates. Utility Model Content

[0005] The utility model aims to provide a fixing device for atmospheric corrosion test specimens of zinc-aluminum-magnesium coated thin plates, so as to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the utility model is achieved through the following technical solutions: a fixing device for atmospheric corrosion samples of zinc-aluminum-magnesium coated thin plates, comprising a main body bracket, the upper end of the main body bracket is connected to a support end, the two sides of the support end are detachably connected to a positioning plate groove, and the positioning plate groove is detachably connected to a strip plate assembly for fixing the thin plate corrosion sample;

[0007] A moving wheel is arranged at the bottom of the main frame, and the bottom of the supporting end is movably connected to the main frame via a hinged end;

[0008] A positioning countersunk hole group is provided on the strip plate assembly, and the positioning countersunk hole group cooperates with the non-metallic material fixing structure.

[0009] Furthermore, the positioning plate slot and the strip plate assembly are plug-connected in a detachable manner;

[0010] The two sides of the support end and the positioning plate groove can be detachably connected by bolts or by plugging the track sliders;

[0011] The connection between the rear end of the support end and the main body bracket is in a hinged manner, and the main body bracket at the rear end of the support end adopts a telescopic structure, which is a cylinder lifting structure.

[0012] Furthermore, the positioning plate grooves are symmetrically arranged along two sides of the main body bracket, and the positioning plate grooves are provided with spaced installation grooves arranged in a matrix.

[0013] Furthermore, the installation grooves arranged on the positioning plate groove are arranged at equal distances or at non-equidistant distances.

[0014] Furthermore, the strip assembly includes a first positioning strip and a second positioning strip, the first positioning strip is provided with a first positioning countersunk hole group at intervals, the first positioning countersunk hole group is an independent channel arranged at intervals, the second positioning strip is provided with a second positioning countersunk hole group at intervals, the second positioning countersunk hole group is two groups of channels arranged at intervals, and the first positioning countersunk hole group and the second positioning countersunk hole group form a fixed interval for the thin plate corrosion specimen.

[0015] Furthermore, non-metallic material fixing structures for fixing the thin plate corrosion specimens are installed in the first positioning countersunk hole group and the second positioning countersunk hole group.

[0016] Furthermore, the non-metallic material fixing structure includes two groups of nylon flat washers and nylon bolts matched with the nylon flat washers. The thin plate corrosion sample is placed between the two groups of nylon flat washers, and the nylon bolts are tightened to clamp the thin plate corrosion sample.

[0017] Furthermore, the nylon flat gasket has an outer diameter of Φ20 mm and a thickness of 5 mm.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model solves the problems of isolating and fixing atmospheric corrosion samples of zinc-aluminum-magnesium coated thin plates and making the fixing method of batch (42 pieces) samples consistent, and designs a fixing device for atmospheric corrosion samples of zinc-aluminum-magnesium coated thin plates.

[0020] The connection between the rear end of the support end and the main support of the utility model is hinged, and the main support at the rear end of the support end adopts a telescopic structure. The telescopic structure is a cylinder lifting structure. The angle of the workpiece is controlled by the cylinder lifting structure to realize the workpiece being placed under different radiation intensities and different rain impact forces, thereby detecting the corrosion rate of the workpiece under different environmental conditions.

[0021] The utility model realizes the corrosion experiment of zinc-aluminum-magnesium coated thin plate corrosion samples in the atmospheric environment, can complete multiple batch experiments under the same conditions, realizes safe, isolated and stable fixation of samples, and facilitates the loading and unloading of samples, thereby improving the detection efficiency of atmospheric corrosion tests and the collection of a large number of experimental data.

[0022] The fixing device of the utility model adopts three points to stably fix the thin plate corrosion sample. The material of the device for fixing the sample does not affect the base material of the sample, and the non-metal itself does not interfere with the corrosion resistance of the sample itself. It has the functions of stably fastening the sample and isolating the sample from the metal exposure rack, and the loading and unloading of the corrosion sample is convenient.

[0023] The utility model aims at the fixing requirements of atmospheric corrosion samples of zinc-aluminum-magnesium coated thin plates, realizes safety, stability, isolation, and clamping of samples, and improves the efficiency of atmospheric corrosion sample collection and experimental purpose. It can be extended to atmospheric corrosion detection of metal material covering layers and expanded to the field of corrosion detection of metal material samples, and has broad promotion prospects and strong practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0025] Figure 2 It is a plan schematic diagram of the utility model;

[0026] Figure 3 It is a schematic diagram of the strip board assembly of the utility model;

[0027] Figure 4 It is a schematic diagram of the non-metallic material fixing structure of the utility model;

[0028] Figure 5 It is a schematic diagram of the hinged end of the utility model. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] like Figure 1-5 As shown, a fixing device for atmospheric corrosion specimens of zinc-aluminum-magnesium coated thin plates is characterized in that: it comprises a main frame 1, the upper end of the main frame 1 is connected to a support end 2, both sides of the support end 2 are detachably connected to positioning plate grooves 3, and the positioning plate grooves 3 are detachably connected to a strip plate assembly for fixing the thin plate corrosion specimen;

[0033] A movable wheel is arranged at the bottom of the main frame 1, and the bottom of the support end 2 is movably connected to the main frame 1 through a hinge end 5;

[0034] A positioning countersunk hole group is provided on the strip plate assembly, and the positioning countersunk hole group cooperates with the non-metallic material fixing structure.

[0035] In order to facilitate detachable installation and replacement in the use state, the positioning plate slot 3 and the strip plate assembly are plug-connected in a detachable manner;

[0036] The two sides of the support end 2 and the positioning plate slot 3 can be detachably connected by bolts or by plugging the track sliders;

[0037] The connection between the rear end of the support end 2 and the main frame 1 is hinged, and the main frame 1 at the rear end of the support end 2 adopts a telescopic structure, which is a cylinder lifting structure. The positioning plate groove 3 is symmetrically arranged along the two sides of the main frame 1, and the positioning plate groove 3 is provided with spaced installation grooves 7 arranged in a matrix.

[0038] In order to facilitate installation of thin plate corrosion specimens of different sizes on the positioning plate groove 3 in the use state, the installation grooves 7 arranged on the positioning plate groove 3 are arranged in equal distances or non-equidistant distances.

[0039] In order to facilitate safe, isolated and stable fixation of samples in use and convenient loading and unloading of samples, the strip assembly includes a first positioning strip 8 and a second positioning strip 10, and the first positioning strip 8 is provided with a first positioning countersunk hole group at intervals, and the first positioning countersunk hole group is an independent channel arranged at intervals, and the second positioning strip 10 is provided with a second positioning countersunk hole group at intervals, and the second positioning countersunk hole group is two groups of channels arranged at intervals, and the first positioning countersunk hole group and the second positioning countersunk hole group form a fixing interval for the thin plate corrosion sample.

[0040] In order to ensure that the thin plate corrosion specimen is fully isolated from the metal exposure frame when in use and meet the requirements of atmospheric corrosion specimens, the first positioning countersunk hole group and the second positioning countersunk hole group are installed with non-metallic material fixing structures for fixing the thin plate corrosion specimen.

[0041] The non-metallic material fixing structure includes two groups of nylon flat gaskets and nylon bolts matched with the nylon flat gaskets. A thin plate corrosion sample is placed between the two groups of nylon flat gaskets. The nylon bolts are tightened to clamp the thin plate corrosion sample. The nylon flat gasket has an outer diameter of Φ20mm and a thickness of 5mm.

[0042] The material and structural dimensions of the device of the utility model: non-metallic nylon rods are selected as the device material, and three sets of M8 bolts and nuts are designed to fix and connect a zinc-aluminum-magnesium coated thin plate corrosion specimen, ensuring that the three points are firmly and lightly connected to the specimen, ensuring that the corrosion specimen is safely fixed on the exposure rack.

[0043] Among them, nylon flat gaskets with an outer diameter of Φ20mm and a thickness of 5mm are designed and processed. Two such gaskets are configured for each set of M8 bolts and nuts. The thin plate corrosion specimen is placed between two nylon flat gaskets. The bolts and nuts are tightened to fully clamp the specimen to ensure that the specimen is installed stably, the three bolts and nuts are tightly fixed, and it is fully isolated from the metal exposure frame to meet the requirements of atmospheric corrosion specimens.

[0044] The utility model designs a fixing device for atmospheric corrosion samples of zinc-aluminum-magnesium coated thin plates according to the experimental requirements of atmospheric corrosion samples and in combination with the structure of an experimental exposure rack. Based on the size of the atmospheric corrosion samples of the thin plates, two points of the lower end of the samples are fixed and the middle of the upper end of the samples are fixed. The fixing device of this design realizes three-point fixation and safe clamping fixation.

[0045] According to the characteristics of the atmospheric corrosion sample of the zinc-aluminum-magnesium coated thin plate and the experimental purpose, the utility model adopts non-metallic bolts for fixing, and configures non-metallic flat gaskets larger than the bolt size to clamp and fix the sample. The fixing device of this design can isolate the sample from the metal exposure frame, and ensure that no contact corrosion affecting the sample occurs between the fixing device and the sample, and between the sample and the exposure frame during the atmospheric corrosion test, thereby meeting the national standard experimental requirements for the atmospheric corrosion sample of the zinc-aluminum-magnesium coated thin plate.

[0046] The fixing device of the utility model can realize batch safe fixing of corrosion samples, realize the stabilization and clamping of multiple groups of samples under the same experimental conditions, is easy to operate, facilitates the fixing and unloading of corrosion samples, and improves the detection efficiency of corrosion samples and the collection of large amounts of experimental data.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fixing device for atmospheric corrosion specimens of zinc-aluminum-magnesium coated thin plates, characterized in that: It comprises a main frame (1), the upper end of the main frame (1) is connected to a support end (2), both sides of the support end (2) are detachably connected to a positioning plate groove (3), and a strip plate assembly for fixing a thin plate corrosion specimen is detachably connected to the positioning plate groove (3); The bottom of the main frame (1) is provided with moving wheels, and the bottom of the support end (2) is movably connected to the main frame (1) via a hinge end (5); A positioning countersunk hole group is provided on the strip plate assembly, and the positioning countersunk hole group cooperates with the non-metallic material fixing structure.

2. The fixing device for atmospheric corrosion test specimens of zinc-aluminum-magnesium coated thin plates according to claim 1 is characterized in that: The positioning plate groove (3) is plug-connected with the strip plate assembly in a detachable manner; The two sides of the support end (2) and the positioning plate groove (3) can be detachably connected by bolts or by plugging and connecting the rail sliders; The connection between the rear end of the support end (2) and the main support (1) is hinged, and the main support (1) at the rear end of the support end (2) adopts a telescopic structure, which is a cylinder lifting structure.

3. The fixing device for atmospheric corrosion test specimen of zinc-aluminum-magnesium coated sheet according to claim 2 is characterized in that: The positioning plate grooves (3) are symmetrically arranged along two sides of the main frame (1), and the positioning plate grooves (3) are provided with spaced installation grooves (7) arranged in a matrix.

4. The fixing device for atmospheric corrosion test specimens of zinc-aluminum-magnesium coated thin plates according to claim 3 is characterized in that: The mounting grooves (7) arranged on the positioning plate groove (3) are arranged at equal distances or at non-equidistant distances.

5. The fixing device for atmospheric corrosion test specimen of zinc-aluminum-magnesium coated sheet according to claim 3 is characterized in that: The strip assembly comprises a first positioning strip (8) and a second positioning strip (10), wherein a first positioning countersunk hole group is arranged at intervals on the first positioning strip (8), and the first positioning countersunk hole group is an independent channel arranged at intervals, and a second positioning countersunk hole group is arranged at intervals on the second positioning strip (10), and the second positioning countersunk hole group is two groups of channels arranged at intervals, and the first positioning countersunk hole group and the second positioning countersunk hole group form a fixed interval for the thin plate corrosion specimen.

6. The fixing device for atmospheric corrosion test specimens of zinc-aluminum-magnesium coated thin plates according to claim 5 is characterized in that: The first positioning countersunk hole group and the second positioning countersunk hole group are installed with non-metallic material fixing structures for fixing the thin plate corrosion specimen.

7. The fixing device for atmospheric corrosion test specimens of zinc-aluminum-magnesium coated thin plates according to claim 6 is characterized in that: The non-metal material fixing structure comprises two groups of nylon flat washers and nylon bolts matched with the nylon flat washers. The thin plate corrosion sample is arranged between the two groups of nylon flat washers, and the thin plate corrosion sample is clamped by tightening the nylon bolts.

8. The fixing device for atmospheric corrosion test specimens of zinc-aluminum-magnesium coated thin plates according to claim 7 is characterized in that: The nylon flat gasket has an outer diameter of Φ20 mm and a thickness of 5 mm.

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