JPH0996634A - Apparatus for testing macro texture of metallic material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the working efficiency by holding a tray in the uppermost stage of each tray-stacking lifter at a carry-in part and a carry-out part at a fixed height by a lifting mechanism and letting leaders share to move trays from the carry-in part to an entrance of a neutralizing/cleaning part and from an exit of the cleaning part to the carry-out part. SOLUTION: A carry-in part 101, a corrosion part 102, a neutralizing/cleaning part 103, a photographing part 104 and a carry-out part 105 are arranged in a row in the order of procedures. The carry-in part 101 and the carry-out part 105 have lifters 2 and 20 respectively and lifting mechanisms for holding a tray 1 at the uppermost stage at a constant height when a count of stages of piled trays 1 is changed. A loader 3 takes the tray 1 at the uppermost stage of the lifter 2 sequentially to the corrosion part 102, while a loader 19 places the tray 1 from the photographing part 104 onto the uppermost stage of the lifter sequentially. Therefore, two movements between a tray truck and the lifter 2 and between the lifter 2 and the truck are executed at the equal height in a test piece-handling process, thereby, the automatization is greatly improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal material macrostructure testing apparatus suitable for automating a macrostructure corrosion test operation, which is carried out, for example, for inspecting a steel material for defects and for judging quality.

[0002]

2. Description of the Related Art In the past, macrostructure testing of metallic materials (eg, steel materials) was performed mainly by the manual work of workers, but since work efficiency and work environment are poor, this work is to be automated. Various efforts have been made, and some automatic devices have been proposed. Japanese Patent Publication No. 54-24318 discloses a technique for constructing an automatic apparatus in which the immersion macro method is difficult to automate and an electrolytic macro method is adopted instead of the immersion macro method, and the washing and hot water washing steps are omitted. However, since this equipment requires an electrolytic device, the equipment becomes large in size, and the rust occurrence rate during transfer is high, and contamination during transfer, uneven drying, etc. are likely to occur, so that a good finished surface could not be obtained. .

On the other hand, as an automatic device of the immersion macro system, for example, Japanese Patent Laid-Open Nos. 5-52723 and 6-3081 are disclosed.
There is one described in Japanese Patent No. 16. However, these techniques still have the following problems. (1) Since it is a batch system in which corrosion, neutralization cleaning, and drying are performed in one processing tank, work efficiency is poor, and uneven corrosion is likely to occur due to scattering of various liquids. . (2) Loading and unloading of test pieces still largely depends on human labor. (3) There is no consideration regarding automation of shooting work. (4) Corrosion due to a single liquid type (acid) is not possible and aqua regia (mixture of hydrochloric acid and nitric acid) used for SUS materials etc. cannot be corroded. (5) There is no function to remove the corrosion product on the surface of the test piece that occurs during corrosion, and corrosion unevenness is likely to occur.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, the present invention is, firstly, to provide a metal material macrostructure testing apparatus which is excellent in the efficiency of the entire corrosion work including the test piece loading / unloading process. The second purpose is to provide a metal material macrostructure testing apparatus capable of automatic imaging.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is such that the carry-in section, the corrosion section, the neutralization cleaning section, and the carry-out section are arranged in a line in this order, and the carry-in section, The carry-out section has a carry-in lifter and a carry-out lifter for stacking trays,
These lifters are provided with an elevating mechanism that keeps the uppermost trays of the stacked trays at a certain height, and further includes a first loader that takes charge of the tray transport means from the loading section to the neutralization cleaning section inlet and the neutralization cleaning section. A metal material macrostructure testing apparatus comprising: a conveyor for carrying out the work; and a second loader for carrying out from the outlet of the neutralization washing unit to the carrying-out unit.

According to a second aspect of the present invention, the carry-in section, the corrosion section, the neutralization cleaning section, the photographing section, and the carry-out section are arranged in this order in one row, and the photographing section has a digital camera with a zoom mechanism or an upper part. This is a metal material macrostructure testing apparatus characterized in that a CCD carrying camera with automatic focus is provided and a tray carrying means is arranged within the visual field range immediately below. In the invention according to claim 3, the carry-in section, the corrosion section, the neutralization cleaning section, the photographing section, and the carry-out section are arranged in this order in one row, and the photographing section is
A digital camera with a zoom mechanism or a CCD camera with automatic focus is provided on the upper part, and the tray transfer means is arranged within the visual field range directly below it. The carry-in part and the carry-out part are a carry-in lifter and a carry-out lifter for stacking trays. These lifters have an elevating mechanism that keeps the uppermost stage of the stacked trays at a constant height, and further, as a tray transport means, a first loader that handles from the loading unit to the neutralization cleaning unit inlet, and a neutralization unit. The first conveyor, which is in charge of the cleaning section, and the second, which is in charge of the imaging section
The second, which is in charge of the conveyor and the exit from the imaging unit to the unloading unit
A metallic material macrostructure testing apparatus comprising a loader.

In the invention described in claim 1, 2 or 3, the inclined rolls are used instead of the carry-out lifter for stacking trays provided with an elevating mechanism for keeping the uppermost stack of stacked trays at a constant height. It may be an inclined roller table having a surface for tray alignment and placement.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION According to the invention of claim 1, it is possible to realize a metal material macrostructure testing apparatus which is excellent in the efficiency of the entire corrosion work including the steps of loading and unloading test pieces. According to the invention of claim 2, A metal material macrostructure testing apparatus capable of automatic imaging can be realized, and according to the invention of claim 3,
It is possible to realize a metal material macrostructure testing device that is highly efficient in the entire corrosion work including the test piece loading / unloading process and that can be automatically photographed.

[0009]

1 is a schematic front view of the apparatus of the present invention.
Here, the one corresponding to claim 3 is disclosed as the most preferable example. In FIG. 1, 1 is a tray, 2 is a carry-in lifter, 3 is a first loader, 4 is a loader guide, 5 is an upper standby chamber, 5A is a first loader standby position during corrosion, 6 is a corrosion tank, 7
Is a hydrochloric acid tank, 8 is a nitric acid tank, 9 is a hydrochloric acid sub-tank,
10 is the first conveyor, 11 is a caustic soda jet head, 12 is a water jet head, 13 is a hot water jet head, 14 is a spare head, 15
Is a hot air nozzle, 16 is a caustic soda tank, 17 is a second conveyor, 18 is a digital camera, 19 is a second loader, 20 is a carry-out lifter, 21 is a rotating brush, 22 is a swinging means, 25 is an exhaust pipe, 25
A and 25B are exhaust ports, 30 is a shutter, and 30A is a lid shutter.

In the apparatus of the present invention, the metal test piece stored in the tray 1 is immersed in the corrosion tank 6 filled with automatic liquid by selecting or specifying either hydrochloric acid, nitric acid, or aqua regia having a specified mixing ratio. 1. A metal material macrostructure test apparatus for automatically performing a metal material macrostructure test work for performing neutralization cleaning, drying, and determination after corrosion, which includes a carry-in section 101, a corroded section 102, The neutralization cleaning unit 103, the imaging unit 104, and the unloading unit 105 are arranged in a line in the order of processes. That is, since the corroding part and the neutralizing and cleaning part are independent of each other, the work efficiency is further improved. The function of each unit will be described below.

A side view of the carry-in section 101 and the carry-out section 105 is shown in FIG.
Shown in In FIG. 2, 40 is a dolly. It should be noted that the same members as those in the above-mentioned drawings are designated by the same reference numerals and the description thereof will be omitted. The carry-in section and the carry-out section respectively have a carry-in lifter 2 and a carry-out lifter 20 for stacking the trays 1, and the lifters 2 and 20 are arranged so that when the number of stacked trays 1 is changed, the tray 1 at the uppermost stage is changed. It is equipped with a lifting mechanism that keeps it at a constant height. That is, when the uppermost tray is removed, it is raised by one step, or when a new tray is stacked on the uppermost tray, it is lowered by one step.
In this example, the trays 1 can be stacked in two rows in the front and rear up to a maximum of 9 steps. The first loader 3 sequentially takes in the uppermost tray 1 lifted to a certain height on the carry-in lifter 2 into the corroded portion in accordance with a preset program, and the second loader 19 comes out from the photographing portion 104. Pick up the tray 1 and place it in the uppermost position on the carry-out lifter 20 in order. Therefore, in the manual work related to the handling of the test pieces, the tray 1 containing the test pieces is stacked on the trolley 40 at the time of loading and set on the loading lifter 2, and the trays 1 stacked on the unloading lifter 20 at the time of unloading are trolleyed. It is only two tasks to move to 40 and carry it out, and it is possible to achieve much more advanced automation than before.

3 (a) is a front view, FIG. 3 (b) is a side view, and FIG. 3 (c) is a plan view showing essential parts of another embodiment of the carry-out section. In FIG. 2A, reference numeral 60 is an inclined roller table. The same or corresponding parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 3, in this embodiment, an inclined roller table 60 is used in place of the carry-out lifter 20 shown in FIG. In the inclined roller table 60, the roller surface for aligning and mounting the trays 1 is inclined so that the trays 1 received from the second loader 19 at the high position of the inclination are automatically aligned in order from the low position by gravity. It is arranged.

According to this, since the trays 1 are not stacked in layers and are arranged in a plane (arranged in two rows in FIG. 3), the space is smaller than that of the carry-out lifter 20 in which the trays 1 are stacked. Is disadvantageous, but it is advantageous in that there is no concern that the adhered liquid (dry residual liquid) on the upper stage will drop on the sample on the lower stage to induce corrosion unevenness. The tray 1 is of a size that can accommodate test pieces of all types of steel (thick plate, thin plate, shaped steel, steel slab, wire rod) and that can withstand hydrochloric acid, nitric acid, and aqua regia. It is preferable to adopt one. 430 x 260 preferred dimensions
× 10 to 30 (mm), a suitable material is PVdF (vinylidene fluoride resin).

A front view of the corroded portion 102 is shown in FIG. In the figure, 27 is a tray supporting means. It should be noted that the same members as those in the above-mentioned drawings are designated by the same reference numerals and the description thereof will be omitted. The corroded parts are the upper standby chamber 5, the corrosion tank 6, the hydrochloric acid tank 7, and the nitric acid tank 8.
The corrosion tank 6 comprises a tray support means 27 and a lid shutter.
With 30A. A swinging means 22 is attached to the tray supporting means 27 so that the tray 1 can swing during corrosion. As a result, the acid solution is evenly spread over the corroded surface of the metal test piece in the tray. Moreover, the corrosion product on the surface of the test piece can be removed, and the uneven corrosion can be reduced. Further, like the lid shutter 30A, shutters 30 are provided in front of and behind the upper standby chamber 5,
The lid shutter 30A and the shutter 30 have an automatic opening / closing function. While corrosion is in progress, these are closed to block the acid gas and mist from the outside. The exhaust system including the exhaust pipe 25 allows the exhaust port 25A in the corrosion tank 6 and the exhaust port 25 in the upper standby chamber 5 to be exhausted.
Acid gas and mist can be exhausted from B.

FIG. 5 is an explanatory view showing the flow of the corrosive liquid (acid liquid). In the figure, 35 is a waste acid tank. In addition,
The same members as those in the above figures are designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 5, a hydrochloric acid tank 7 and a nitric acid tank 8 are provided adjacent to the front and rear of the corrosion tank 6 so that a specified amount or all of hydrochloric acid and nitric acid can be automatically fed to the corrosion tank 6, and the frequency of use is high. For hydrochloric acid, which is frequently reused, a hydrochloric acid sub-tank 9 is provided and a circulation route is provided between it and the corrosion tank 6, and a waste liquid discharge route from both the corrosion tank 6 and the hydrochloric acid sub-tank to the waste acid tank 35 is provided. As a result, the specified amount (or the total amount) of hydrochloric acid or nitric acid can be quickly supplied to the corrosion tank 6 according to each macro test condition of hydrochloric acid, nitric acid, and aqua regia (hydrochloric acid 3: nitric acid 1 or a specified ratio), and acid solution exchange is also possible. It can be done smoothly and quickly. Although not shown, the corrosion tank 6 has a liquid temperature automatic adjustment function and a timer function. Note that the corrosion test conditions that are frequently used are 75 to 80 ° C x 10 to 40 minutes for hydrochloric acid, room temperature x 10 to 30 minutes for nitric acid, and room temperature to 80 ° C x 5 for aqua regia.
20 minutes, normal temperature × 10 to 30 minutes or 90 to 95 ° C. × 10 to 30 minutes.

An explanatory view of the operation of the first loader 3 is shown in FIG. In the figure, 26 is a water washing nozzle. It should be noted that the same members as those in the above-mentioned drawings are designated by the same reference numerals and the description thereof will be omitted. Figure 6
As shown in FIG. 2, the tray 1 is conveyed by the first loader 3, is deposited on the tray support means in the corrosion tank 6 through the upper waiting chamber 5, and is recovered by the first loader 3 again after the completion of corrosion, After passing through 5, it is transferred to the first conveyor 10 of the neutralization cleaning section. A water washing nozzle 26 is attached to the first loader 3 so that the test pieces in the tray 1 can be washed with water while being conveyed to the first conveyor 10 after the completion of corrosion. During this period, the shutter 30 of the corrosion tank 6 is opened, the tray 1 is collected by the first loader 3, the shutter 30 of the corrosion tank 6 is closed, the transfer is performed while washing, and the tray is placed on the first conveyor 10. With this configuration, the time from the completion of corrosion to the start of neutralization cleaning can be set within 4 seconds.

FIG. 7 shows a front view of the neutralization cleaning unit 103. The same members as those in the above figures are designated by the same reference numerals and the description thereof will be omitted.
As shown in FIG. 7, the neutralizing and cleaning section has a first conveyor 10 as a tray transporting means, and a neutralizing means such as a caustic soda jet head 11 or the like, for example, a water jet, arranged above the first conveyor 10 in the order of progress of the tray 1. A cleaning means for the head 12 and the like and a drying means such as the hot water jetting head 13 and the hot air nozzle 15 are provided, and a corrosion product removing means, for example, a rotating brush 21, is provided between the cleaning means and the drying means. . Although two rotary brushes 21 are provided in FIGS. 1 and 6,
The number is not particularly limited, and one or three or more may be provided as necessary.

FIG. 8 is a front view of a preferred example of the rotating brush 21, FIG. 8B is an explanatory view of an assembled state, 21A is a fin-shaped sponge having a notch in its side end, and 21B is a plastic. Wheels, 21C is a SUS shaft, and 21D is a SUS push plate. As shown in FIG. 8, this rotating brush 21 is configured such that sponge 21A is attached to the S via a SUS push plate 21D which is a fixing material.
The plastic wheel 21B having the US shaft 21C as the rotating shaft is screwed and radially mounted. Other than this, nylon ropes and mops were also tried, but this radial sponge fin type was the most effective in preventing uneven corrosion.

As a result, contamination of the corroded surface can be reliably prevented, and false determinations are greatly reduced. In addition, the speed of the first conveyor 10 can be changed so that the lower the pH, the longer the neutralization time. The spare head 14 is used when it is desired to increase the amount of washing water or warm water, and the caustic soda tank 16 is used as a caustic soda supply source to the caustic soda jet head 11. Although not shown, the neutralization cleaning unit 103 is also provided with an exhaust system like the corrosion unit 102.

FIG. 9 is an explanatory diagram of the structure of the photographing section 104.
In the figure, 28 is a photographing room, 29 is a sample room, 50 is a personal computer,
51 is a color printer. It should be noted that the same members as those in the above-mentioned drawings are designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 9, the photographing section is provided with a digital camera 18 with a zoom mechanism in a photographing room 28 arranged at the upper part, and a sample room 29 arranged immediately below the photographing room 28 is arranged so as to enter the visual field of the digital camera 18, for example. A tray transporting means such as the second conveyor 17 is provided and configured. In addition,
Instead of the digital camera 18, an autofocus CCD camera may be provided.

The digital camera 18 is combined with an image analysis device (not shown), a personal computer 50 and a color printer 51 so as to be capable of automatically photographing. Automatic as shooting mode /
A manual mode can be selected, and a standard mode for photographing the entire tray and a mode for partially photographing can be selected. Further, in order to protect the digital camera 18 from the corrosive environment, shutters 30 are provided on the inlet side and the outlet side of the sample chamber 29, and the shutter is opened only when the subject (the test piece immediately after drying in the tray 1) is passed through. The shutter 30 is also provided between the sample chamber 29 and the sample chamber 29, and is closed except when photographing is performed. Further, the inside of the photographing room 28 is air-purged. The opening and closing of these shutters 30 is automatically performed. As shown in FIG. 1, if the second conveyor 17 is arranged on the extension of the first conveyor 10 so that the level of the conveying surface is adjusted, the tray 1 can be easily transferred.

By configuring the photographing section in this way,
It is possible to perform automatic imaging in a macro structure test that could not be done before. Of course, the device of the present invention is provided with a control / operation panel and can be operated in either a fully automatic mode or a manual mode. Stacked trays 1 in fully automatic mode
A series of operations (loader loading ⇒ corrosion ⇒ neutralization cleaning ⇒ drying ⇒ shooting ⇒ loader unloading) are automatically performed according to a predetermined program from the setting of the loader on the loader lifter 2 to the collection on the loader lifter 20 or the inclined roller table 60. Can be done automatically. The control / operation panel is equipped with a display panel for displaying the corrosion conditions and the current treatment stage of the tray 1 for the convenience of the operator.

[0023]

EFFECTS OF THE INVENTION According to the present invention, it is possible to obtain a remarkable effect that the corrosion efficiency of the entire corrosion work including the loading / unloading process of the test piece is excellent, and the metal material macrostructure testing apparatus capable of automatic photographing can be obtained. .

[Brief description of drawings]

FIG. 1 is a schematic front view showing the entire device of the present invention.

FIG. 2 is a side view showing a carry-in section and a carry-out section.

3A is a front view, FIG. 3B is a side view, and FIG. 3C is a plan view showing essential parts of another embodiment of the carry-out section.

FIG. 4 is a front view of a corroded portion.

FIG. 5 is an explanatory diagram showing a flow of a corrosive liquid (acid solution).

FIG. 6 is an explanatory diagram of the operation of the first loader.

FIG. 7 is a front view of a neutralization cleaning unit.

FIG. 8A is a front view of a preferred example of a rotating brush, and FIG.
[Fig. 3] is an explanatory diagram of an assembly situation.

FIG. 9 is an explanatory diagram of a configuration of a photographing unit.

[Explanation of symbols]

 1 tray 2 carry-in lifter 3 first loader 4 loader guide 5 upper standby chamber 5A first loader standby position 6 corrosion tank 7 hydrochloric acid tank 8 nitric acid tank 9 hydrochloric acid sub-tank 10 first conveyor 11 caustic soda jet head 12 water jet head 13 hot water jet head 14 Spare head 15 Warm air nozzle 16 Caustic soda tank 17 Second conveyor 18 Digital camera 19 Second loader 20 Carrying lifter 21 Rotating brush 21A Sponge 21B Plastic wheel 21C SUS shaft 21D SUS push plate 22 Swinging means 25 Exhaust pipe 25A, 25B Exhaust Mouth 26 Washing nozzle 27 Tray support means 28 Shooting room 29 Sample room 30 Shutter 30A Lid shutter 35 Waste acid tank 40 Cart 50 PC 51 Color printer 60 Inclined roller table 101 Carry-in section 102 Corrosion section 103 Neutralization cleaning section 104 Shooting section 105 Carry-out section

Claims (4)

[Claims] 1. A carry-in section, a corroding section, a neutralization cleaning section, and a carry-out section are arranged in a row in this order, and the carry-in section and the carry-out section have a carry-in lifter and a carry-out lifter for stacking trays. Is equipped with an elevating mechanism that keeps the uppermost stage of the stacked trays at a constant height, and further, as a tray transport means, a first loader that handles from the loading section to the neutralization cleaning section inlet, and a conveyor that handles the neutralization cleaning section. And a second loader that handles from the outlet of the neutralizing and cleaning unit to the unloading unit, and a metallic material macrostructure testing apparatus. 2. A carrying-in section, a corroding section, a neutralization cleaning section, a photographing section,
The carry-out sections are arranged in a line in this order, and the photographing section is provided with a digital camera with a zoom mechanism or a CC with automatic focus on the top.
A metal material macrostructure testing apparatus characterized in that a D camera is provided and a tray transfer means is arranged within a visual field range immediately below the D camera. 3. A carrying-in section, a corrosive section, a neutralization cleaning section, a photographing section,
The carry-out sections are arranged in a line in this order, and the photographing section is provided with a digital camera with a zoom mechanism or a CC with automatic focus on the top.
A D-camera is provided and tray transfer means is arranged within the field of view immediately below the D-camera. The carry-in section and carry-out section have carry-in lifters and carry-out lifters for stacking trays, and these lifters are stacked trays. Is provided with an elevating mechanism for maintaining the uppermost stage of the tray at a constant height, and further, as a tray transport means, a first loader that handles from the loading section to the inlet of the neutralization cleaning section, a first conveyor that handles the neutralization cleaning section, and an imaging section. A metallic material macrostructure testing apparatus comprising: a second conveyer that handles the work, and a second loader that handles from the exit of the imaging unit to the carry-out unit. 4. An inclined roller for stacking trays having an inclined roll surface, instead of a carry-out lifter for stacking trays, which has an elevating mechanism for keeping the uppermost level of stacked trays at a constant height. The device according to claim 1, 2 or 3, which is a table.