JPH0136124Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a fluorescent magnetic particle flaw detection test tool.

Fluorescent magnetic particle flaw detection test is a mixture of liquid and fluorescent magnetic powder, in which a magnetic powder liquid with an appropriate concentration is sprayed onto the flaw detection area, and then it is exposed to ultraviolet light using an ultraviolet irradiation device (hereinafter referred to as black light). In this test, defects are detected by irradiating a fluorescent magnetic powder pattern to emit light, but the magnetic powder liquid must be well stirred and the magnetic particles must be uniformly dispersed in the liquid.

Conventionally, the test involves placing liquid and magnetic powder in a plastic bucket, stirring the mixture, pouring it into a spraying container such as an oiler, shaking the container before use, spraying it on the surface to be tested, and then spraying it with black light. was picked up and irradiated. Therefore, this method had the following drawbacks. That is, even if the particles are stirred or vibrated in a plastic bucket or oiler, the magnetic particles immediately settle, making it impossible to obtain an appropriate uniform concentration.

If the plastic bucket is not covered, dirt will get into the magnetic powder solution, and when scooping out the magnetic powder solution from the plastic bucket with an oiler, the dirt attached to the oiler will creep into the magnetic powder solution.

Since the oiler has a small capacity, one test requires about 30 cups of magnetic powder liquid in the oiler, which is extremely inefficient.

The purpose of this invention is to provide a fluorescent magnetic particle flaw detection test tool which can eliminate the above-mentioned drawbacks.

The configuration of the fluorescent magnetic particle flaw detection test tool according to this invention will be explained in detail based on the illustrated embodiment.
Magnetic powder liquid container A has a submersible pump 2 inside the container 1, and a branch pipe 4 disposed in the middle of the discharge pipe 3 of the pump 2 for discharging the discharge liquid into the container interior 1.
and a black light B, the black light is provided with a nozzle pipe 5 opening parallel to the ultraviolet irradiation direction O in the handle 6 of the black light B,
A small chamber 7 is further provided in the handle 6, and the small chamber 7 is provided with three openings a, b, and c, and one opening a is
A valve 1 in which a passage 9 made of an elastic material is opened and closed by the other end 8' of an operating finger hook 8 protruding outside the handle 6.
One opening b communicates with the magnetic powder liquid container A through a flexible tube 11, and the remaining opening c communicates with the nozzle pipe 5 through a flow control valve 12 and a flexible tube 13. The discharge pipe 3 of the pump 2 is connected to the discharge pipe 3 of the pump 2. Note that 14 indicates a power supply plug for the submersible pump 2, and 15 indicates a suction port of the submersible pump. Furthermore, the configuration of the valve 10 is not limited to that shown in the drawings, and any structure may be used as long as the passage can be opened and closed when the finger hook 8 is moved.

Since this embodiment has the configuration as described above,
When the plug 14 is connected to a power source and the submersible pump 2 is started, the submersible pump 2 sucks the liquid from the magnetic powder liquid container A through the suction port 15, and the discharge pipe 3, the flexible pipe 13, the flow rate control valve 12, and the opening c. The liquid is then pumped to the small chamber 7 of the handle 6 of the black light B, and a part of the liquid is sent to the discharge pipe 3.
is discharged into the magnetic powder liquid container A through the branch pipe 4,
The fluorescent magnetic powder and liquid in the magnetic powder liquid container A are thoroughly mixed and stirred. On the other hand, the magnetic powder liquid forced into the small chamber 7 is
It returns to the magnetic powder liquid container A through the flexible tube 11 and helps stir the liquid in the magnetic powder liquid container A. However, when the operating finger hook 8 of the handle 6 of the black light B is grasped, the passage of the elastic material The magnetic powder liquid, which has been released from the constriction of the magnetic powder 9 and is forced into the small chamber 7, is injected from the nozzle pipe 5. The amount of injection is adjusted by the grip of the finger hook 8 and the flow control valve 12 on a regular basis.

The opening direction of the nozzle tube 5 is parallel to the irradiation direction O of the black light B, so when performing a flaw detection test, grasp the handle 6 of the black light B, point the nozzle tube 5 toward the flaw detection area, and operate the nozzle tube 5. When the finger hook 8 is grasped, a well-mixed magnetic powder liquid is sprayed from the nozzle pipe 5 toward the flaw detection area, and since the sprayed area is irradiated with ultraviolet rays, the fluorescent magnetic powder pattern can be immediately examined. Can perform flaw detection tests.

Since this device has the above-mentioned structure and operation, it has the following effects. That is, since the nozzle tube 5 for spouting the magnetic powder liquid is incorporated into the handle 6 of the Ibraclite B, the magnetic powder liquid can be sprayed with a single touch, and the fluorescent magnetic particle pattern can be continuously examined.

(b) The amount of ejected magnetic powder liquid can be freely and easily adjusted constantly using the flow control valve 12 of the handle 6. Furthermore, the actuation finger hook 8 in the handle 6 allows for free and easy adjustment.

C. If the magnetic powder liquid is not injected from the nozzle pipe 5,
The magnetic powder liquid is returned to the magnetic powder liquid container A from the handle 6,
This can help stir the liquid in the container, and can also prevent magnetic particles from settling in the small chamber 7 provided in the handle 6.

(d) The magnetic powder liquid in the magnetic powder liquid container A is always uniformly stirred by the liquid discharged from the branch pipe 4 of the discharge pipe 3, so that the magnetic powder does not settle to the bottom of the container A.

E. If the magnetic powder liquid container A is provided with a lid, the magnetic powder liquid will not be contaminated with dust.

F. Tests can be performed continuously, improving work efficiency and contributing to labor savings.

G. Tests can be performed with one touch with one hand, allowing for safe work at heights.

H Pump 2 and black light B in the magnetic powder liquid container
Since they are connected by flexible tubes 11 and 13, flaw detection can be carried out easily over a wide range.

[Brief explanation of drawings]

Fig. 1 shows a partially cutaway front view of an embodiment of the fluorescent magnetic particle flaw detection test tool according to this invention, and Fig. 2 shows an enlarged sectional view of the handle 6 of Blacklite B, where 1 shows the inside of the container, 2 is a submersible pump, 3 is a discharge pipe, 4 is a branch pipe, 5 is a nozzle pipe, 6 is a handle, 7 is a small chamber, 8 is an operating finger rest, 10 is a valve, 11 is a flexible pipe, 12 is a flow rate control valve , 13 is a flexible tube, a, b, c are openings, O
indicate the direction of ultraviolet irradiation.

Claims (1)

[Scope of utility model registration request] A submersible pump 2 is provided inside the container 1, and the pump 2
A magnetic powder liquid container A is provided with a branch pipe 4 in the middle of the discharge pipe 3 for discharging the discharge liquid into the container interior 1.
and an ultraviolet irradiation device B, the irradiation device is provided with a nozzle pipe 5 opening parallel to the ultraviolet irradiation direction O in the handle 6 of the ultraviolet irradiation device B, and further inside the handle 6. A small chamber 7 is provided, and the small chamber 7 is provided with three openings a, b, and c, and one opening a has a valve 10 whose passage can be opened and closed by an operating finger hook 8 projecting outside the handle 6. communicates with the nozzle pipe 5 through the
One opening b communicates with the magnetic powder liquid container A through the flexible tube 11, and the remaining opening c communicates with the flow rate control valve 1.
2. A fluorescent magnetic powder flaw detection test tool, characterized in that it communicates with the discharge pipe 3 of the pump 2 via a flexible pipe 13.