CN215866313U

CN215866313U - Salt spray test tool and salt spray test machine

Info

Publication number: CN215866313U
Application number: CN202121770710.4U
Authority: CN
Inventors: 李世高; 朱胜炎; 毛中英
Original assignee: Guilin Woodpecker Medical Instruments Co Ltd
Current assignee: Guilin Woodpecker Medical Instruments Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-18
Anticipated expiration: 2031-07-30

Abstract

The embodiment of the utility model provides a salt spray test tool and a salt spray test machine, and relates to the technical field of test devices.

Description

Salt spray test tool and salt spray test machine

Technical Field

The utility model relates to the technical field of testing devices, in particular to a salt spray testing tool and a salt spray testing machine.

Background

Corrosion is the destruction or deterioration of a material or its properties under the action of the environment. Most of the corrosion occurs in the atmospheric environment, which contains corrosive elements and corrosive factors such as oxygen, humidity, temperature changes and pollutants. Salt spray corrosion is one of the common and most damaging atmospheric corrosion. The salt fog causes corrosion to the surface of the metal material because the contained chloride ions penetrate through the oxide layer and the protective layer of the metal surface to generate electrochemical reaction with the internal metal. Meanwhile, the chloride ions contain certain hydration energy, are easy to be extruded by pores and cracks on the metal surface and replace oxygen in an oxide layer, and insoluble oxides are changed into soluble chlorides, so that a passivated surface is changed into an active surface, and the extremely bad adverse reaction is caused to products.

The salt spray test is an environmental test for examining the corrosion resistance of products or metal materials by mainly utilizing the artificial simulated salt spray environmental conditions created by salt spray test equipment. However, the inventor researches and discovers that for a test piece with a small size such as a working tip, the contact area between the existing salt spray test tool for placing the test piece and the test piece is large, so that the contact area between the surface of the test piece and the salt spray is small, and the final test result of the test piece is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a salt spray test tool and a salt spray test machine, which have small contact area with a test piece, ensure the full contact of the test piece and salt spray and further ensure the accuracy of test results.

The embodiment of the utility model is realized by the following steps:

in a first aspect, the present invention provides a salt spray test tool, including:

a base plate;

the bracing piece, the contained angle connect in the bottom plate, the bracing piece is including supporting the section, follows the support section is close to the one end of bottom plate extremely the support section deviates from the direction of the one end of bottom plate, the external diameter of supporting the section reduces gradually.

In an alternative embodiment, the support section is conical.

In an alternative embodiment, the generatrix of the support section comprises an arc section and a straight section which are connected, the arc section is close to the bottom plate relative to the straight section, and the curvature center of the arc section is located on one side of the arc section, which is far away from the axis of the support section.

In an alternative embodiment, the curvature of the arc segment gradually decreases in a direction from an end of the support segment near the base plate to an end of the support segment away from the base plate.

In an alternative embodiment, the support bar is removably attached to the base plate.

In an optional embodiment, the support rod includes a connection section connected to the support section, the bottom plate is provided with a connection hole, and the connection section is clamped in the connection hole.

In an alternative embodiment, the connecting section comprises a first connecting section and a second connecting section which are connected, the second connecting section is connected with the supporting section, and the outer diameter of the first connecting section is smaller than that of the second connecting section;

the connecting hole comprises a first hole section and a second hole section which are communicated, the inner diameter of the first hole section is smaller than that of the second hole section, the first connecting section is clamped in the first hole section, and the second connecting section is clamped in the second hole section.

In an alternative embodiment, an outer diameter of an end of the support section near the base plate is equal to an outer diameter of an end of the second connecting section facing away from the first connecting section.

In an optional embodiment, the salt spray test tool comprises a plurality of support rods, and the support rods are arranged at intervals.

In a second aspect, the present invention provides a salt spray testing machine, including the salt spray testing tool according to any one of the foregoing embodiments.

The beneficial effects of the embodiment of the utility model include, for example:

through connecting the bracing piece contained angle on the bottom plate, and the bracing piece is including supporting the section, thereby should support the section and can partially wear to establish in the screw hole of for example this kind of tiny part of work point, hold the work point top, because the one end that is close to the bottom plate along supporting the section is to the direction that supports the one end that the section deviates from the bottom plate, the external diameter that supports the section reduces gradually, consequently this support section is the toper, support the section and only have one end and the interior surface contact of work point that deviate from the bottom plate, thereby when carrying out the salt spray test, guarantee the abundant contact of salt spray and work point, with the accuracy of guaranteeing the experimental result.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a salt spray test tool in an embodiment of the utility model;

fig. 2 is an exploded view of a salt spray test tool in use in accordance with some embodiments of the present invention.

1-bottom plate; 10-connecting holes; 101-a first bore section; 103-a second bore section; 3-supporting rods; 30-a support section; 301-arc segment; 303-straight line segment; 32-a connecting segment; 321-a first connecting section; 323-second connection section; 5-a working tip; 52-threaded hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The salt spray test is an environmental test for examining the corrosion resistance of products or metal materials by mainly utilizing the artificial simulated salt spray environmental conditions created by salt spray test equipment. The method is divided into two main types, one is a natural environment exposure test, and the other is an artificial acceleration simulation salt spray environment test. The manual salt spray environment simulation test is to utilize a test device with a certain volume space, namely a salt spray test box, to cause a salt spray environment to evaluate the salt spray corrosion resistance performance quality of a product by a manual method in the volume space. Compared with the natural environment, the salt concentration of the chloride in the salt spray environment can be several times or dozens of times of that in the salt spray environment of the common natural environment, so that the corrosion speed is greatly improved, and the time for obtaining the result is greatly shortened when the salt spray test is carried out on the product. If a product sample is tested in a natural exposure environment, the corrosion may take 1 year, and if the product sample is tested in a salt spray environment simulated manually, similar results can be obtained within 24 hours.

The inventor researches and discovers that for small test pieces such as a working tip, the contact area between the existing salt spray test tool for placing the test piece and the test piece is large, so that the contact area between the surface of the test piece and salt spray is small, and the final test result of the test piece is influenced.

Aiming at the defects in the prior art, the inventor provides a salt spray test tool through research, and the support section which is provided with a conical shape supports the work tip, so that the surface of the work tip can be ensured to be fully contacted with salt spray.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1, an embodiment of the present invention provides a salt spray testing machine, which includes a box and a salt spray testing tool disposed in the box, wherein the salt spray testing tool mainly plays a role in placing a test piece of a working tip 5, and a volume space in the box can simulate a salt spray environment in a conventional manner. The salt spray test tool comprises a bottom plate 1 and a supporting rod 3 connected to the bottom plate 1 at an included angle. The supporting rod 3 supports the section 30, and along the direction from one end of the supporting section 30 close to the bottom plate 1 to one end of the supporting section 30 departing from the bottom plate 1, the outer diameter of the supporting section 30 is gradually reduced.

From this, connect on bottom plate 1 through 3 contained angles of bracing piece, and bracing piece 3 is including supporting section 30, thereby should support section 30 can partially wear to establish for example in the screw hole 52 of little part of tip 5 this type, hold tip 5 top, owing to be close to the one end of bottom plate 1 to the direction of supporting the one end that section 30 deviates from bottom plate 1 along supporting section 30, the external diameter of supporting section 30 reduces gradually, consequently this supports section 30 and is the toper, support section 30 only has the one end and the 5 internal surface contact of tip that deviate from bottom plate 1, thereby when carrying out the salt spray test, guarantee salt spray and tip 5's abundant contact, with the accuracy of assurance experimental result.

In addition, it should be noted that the axial length of the support section 30 of the present embodiment is greater than the depth of the threaded hole 52 of the tip 5, and the outer diameter of the portion of the support section 30 for inserting the threaded hole 52 of the tip 5 is smaller than the inner diameter of the threaded hole 52 of the tip 5, so as to facilitate the placement of the tip 5 on the support section 30 of the support rod 3, and ensure that only one end of the support section 30 away from the bottom plate 1 contacts the tip 5, and the outer peripheral surface of the support section 30 is spaced from the inner peripheral surface of the threaded hole 52 of the tip 5. The bottom plate 1 and the support rod 3 are made of non-metal materials which are resistant to salt spray corrosion and do not produce chemical action with the test piece of the working tip 5.

In the present embodiment, the bottom plate 1 is a flat plate, such as a rectangular flat plate, and the support rod 3 is detachably connected to the bottom plate 1, so as to replace the support rod 3 with a suitable size according to the size of the work tip 5, for example, the detachable connection of the support rod 3 to the bottom plate 1 may be: bracing piece 3 includes the linkage segment 32 with support section 30 coaxial coupling, bottom plate 1 is provided with connecting hole 10, linkage segment 32 card is in connecting hole 10, thereby linkage segment 32 closely cooperates with connecting hole 10, when guaranteeing that bracing piece 3 can not become flexible for bottom plate 1, if need change not unidimensional bracing piece 3 according to the size and the external diameter of work point 5, extract connecting hole 10 with original bracing piece 3, make linkage segment 32 with connecting hole 10 separate can.

The connection section 32 includes a first connection section 321 and a second connection section 323 connected, the second connection section 323 is coaxially connected with the support section 30, and the outer diameter of the first connection section 321 is smaller than that of the second connection section 323, so that the support section 30 of the support rod 3 is a stepped shaft. The connecting hole 10 includes a first hole section 101 and a second hole section 103 which are coaxial and communicated with each other, the inner diameter of the first hole section 101 is smaller than the inner diameter of the second hole section 103, a stepped hole is formed from the connecting hole 10, the first connecting section 321 is clamped in the first hole section 101, and the second connecting section 323 is clamped in the second hole section 103.

Therefore, the stability of the connection between the support rod 3 and the bottom plate 1 can be ensured through the matching of the stepped hole and the stepped shaft; meanwhile, since the connection section 32 is a stepped shaft, a shoulder is formed between the second connection section 323 and the first connection section 321, and the shoulder abuts against the bottom of the second hole section 103, so that the strut is prevented from sliding down from the second hole section 103 to the first hole section 101 under the action of gravity and the pressure applied by the test piece.

Wherein, the cross sectional shape of linkage segment 32 and the cross sectional shape of connecting hole 10 do not do specifically and restrict, only need to guarantee that the outer wall of linkage segment 32 can the looks adaptation with the inner wall of connecting hole 10, the looks laminating can, that is also the outer wall of first linkage segment 321 and the inner wall laminating of first hole section 101, the outer wall of second linkage segment 323 and the inner wall laminating of second hole section 103, for example, the cross section of linkage segment 32 and the cross section of connecting hole 10 all are circular as shown in fig. 1, thereby do benefit to processing, reduce the cost of producing this salt fog test device. Of course, the cross-section of the connecting section 32 and the cross-section of the connecting hole 10 may also be square, polygonal, etc. The connection hole 10 may be a blind hole or a through hole as shown in fig. 1.

It should be noted that, in other embodiments, the support rod 3 may also be directly fixedly connected to the bottom plate 1 or directly connected to the bottom plate 1 in an integrated manner, and different salt spray test tools are replaced corresponding to the work tips 5 of different sizes.

In some embodiments, as shown in fig. 2, the salt spray test tool includes a plurality of support rods 3, and the plurality of support rods 3 are arranged at intervals. Further, bottom plate 1 is provided with a plurality of foretell connecting holes 10, and a plurality of connecting holes 10 intervals are arranged to can insert at every connecting hole 10 and establish bracing piece 3, a plurality of bracing pieces 3 also are the interval and arrange, with support a plurality of looks spaced work tips 5 simultaneously, in order to reach easily transport, carry out the salt fog test of test piece in batches, each noninterference between each test piece. Particularly, a plurality of connecting holes 10 are the rectangle array and arrange, and a plurality of bracing pieces 3 also are the rectangle array and arrange to each work point 5 also is the rectangle array and arranges, and then the fixed position of test piece sample easily checks, makes things convenient for the record of salt spray test process.

It is understood that although the base plate 1 is provided with a plurality of connecting holes 10, it does not mean that one support rod 3 is required to be inserted into each connecting hole 10 when performing the salt spray test in particular, for example, the support rods 3 may be inserted into a part of all the connecting holes 10 due to the bending angle and size of the work tip 5. Wherein, each support rod 3 is arranged in a rectangular array.

In general, the threaded hole 52 of the tip 5 is a circular hole, and therefore, in this embodiment, the support section 30 has a conical shape so as to better conform to the circular threaded hole 52 of the tip 5, but of course, in other embodiments, the support section 30 may have a pyramidal shape.

It is noted that the outer diameter of the end of the support section 30 close to the base plate 1 is equal to the outer diameter of the end of the second connecting section 323 facing away from the first connecting section 321. Moreover, in the example of the conical support section 30 in the present embodiment, as shown in fig. 1, a generatrix of the support section 30 includes an arc line segment 301 and a straight line segment 303 connected to each other, the arc line segment 301 and the straight line segment 303 are in smooth transition, the arc line segment 301 is close to the base plate 1 relative to the straight line segment 303, and a curvature center of the arc line segment 301 is located on a side of the arc line segment 301 away from an axis of the support section 30. The curvature of the arc segment 301 gradually decreases in the direction from the end of the support segment 30 close to the base plate 1 to the end of the support segment 30 facing away from the base plate 1 until the radius of curvature of the arc segment 301 is zero at the junction with the straight segment 303.

In conclusion, through connecting 3 contained angles of bracing piece on bottom plate 1, and bracing piece 3 includes support section 30, thereby this support section 30 can partially wear to establish for example in the screw hole 52 of little part of this kind of tip 5, hold tip 5 top, owing to be close to the one end of bottom plate 1 to the direction of the one end that support section 30 deviates from bottom plate 1 along support section 30, the external diameter of support section 30 reduces gradually, consequently this support section 30 is the toper, support section 30 only has the one end that deviates from bottom plate 1 and 5 internal surface contact of tip, thereby when carrying out the salt spray test, guarantee salt spray and tip 5's abundant contact, with the accuracy of assurance experimental result.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a salt spray test frock which characterized in that includes:

a base plate;

2. The salt spray test tool of claim 1, wherein the support section is conical.

3. The salt spray test tool of claim 2, wherein a bus of the support section comprises an arc section and a straight section which are connected, the arc section is close to the bottom plate relative to the straight section, and a curvature center of the arc section is located on one side of the arc section, which is far away from an axis of the support section.

4. The salt spray test tool of claim 3, wherein the curvature of the arc segment gradually decreases along a direction from one end of the support segment close to the bottom plate to one end of the support segment away from the bottom plate.

5. The salt spray test tool of claim 1, wherein the support rod is detachably connected to the bottom plate.

6. The salt spray test tool of claim 5, wherein the support rod comprises a connecting section connected with the support section, the bottom plate is provided with a connecting hole, and the connecting section is clamped in the connecting hole.

7. The salt spray test tool of claim 6, wherein the connecting section comprises a first connecting section and a second connecting section which are connected, the second connecting section is connected with the supporting section, and the outer diameter of the first connecting section is smaller than that of the second connecting section;

8. The salt spray test tool of claim 7, wherein the outer diameter of the end of the support section close to the bottom plate is equal to the outer diameter of the end of the second connecting section away from the first connecting section.

9. The salt spray test tool of any one of claims 1 to 8, wherein the salt spray test tool comprises a plurality of support rods, and the support rods are arranged at intervals.

10. A salt spray tester, characterized by comprising the salt spray test tool according to any one of claims 1 to 9.