JPS5935773A - Continuous type heating furnace for experimenting on material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous heating furnace for materials experiments, and for example, to a heating furnace used for materials experiments in space or the like.

In a conventional space experimental reactor, for example, as shown in Fig. 1, a sample heating chamber and a sample cooling chamber C are arranged in a chamber a filled with a gas such as helium, and both chambers are cooled by a motor d. It is designed to move back and forth and turn.

However, in such a conventional experimental reactor, sample e is cooled by gas cooling, and therefore, it is necessary to fill chamber a with gas, and therefore, it is necessary to turn off the heater when moving the heating chamber. The temperature drops. Furthermore, since the cooling chamber C is also used as a sample exchange chamber, sample cooling and exchange are performed in series, and the exchange time is limited. Moreover, after replacing the sample, it is necessary to evacuate the heating chamber via the vacuum port f, which takes more time. Further, there is a problem in that the gas in the chamber a may escape to the outside when the sample is replaced.

The present invention uses a vacuum chamber to eliminate various problems caused by using gas, and by adding a sample exchange chamber, sufficient exchange time can be obtained, even when the sample heating time is short. The purpose of the present invention is to provide an efficient continuous heating furnace for material experiments in which the overall schedule is not affected by replacement time.

Therefore, in the present invention, the chamber is of a vacuum type, a heating chamber, a cooling chamber, and a sample exchange chamber are arranged around the central axis of the chamber, and these chambers are moved in the direction of the central axis. It is characterized in that by rotating the vacuum chamber, multiple samples set on the flange surface of the vacuum chamber can be continuously heated, cooled, and replaced.

An embodiment of the present invention will be described below with reference to FIGS. 2 to 5.

In FIGS. 2 and 3, 1 is a vacuum chamber, 2 is a flange surface thereof, and 6 is a sample.

That is, as shown in FIG. In the example, 60 degrees) are set at equal positions.

i! As mainly seen in FIG. 3, a ball screw 5 is supported at the center of the vacuum chamber 1, and one end of the ball screw 5 is connected to a back and forth drive motor 6 [on the outer periphery of a connecting screw nut 7 via a bearing 8]. A swivel base 9 is attached. A swing motor 11 is attached to the bracket 10 from the ball screw nut 7, and as shown in FIG. 5, a pinion 12 is attached to the rotating shaft of the motor 11.
and a sector gear 16 attached to the rotating table 9 are meshed with each other. Therefore, the swivel base 9 can be rotated by the motor 11. Further, a rotation prevention guide 14 is provided to prevent rotation of the ball screw nut 7.

As shown in FIGS. 3 and 4, two sample heating chambers 15, two sample cooling chambers 16, and two sample exchange chambers 17 are installed around the swivel table 9. Moreover, the radius r and the central angle θ shown in FIG. 4 are made to match the radius r and the central angle θ explained in FIG. Namely.

The heating chamber 15, the cooling chamber 16, and the exchange chamber 17 are arranged around the central axis within the vacuum chamber 1 so as to correspond to the six samples 3 set at the aforementioned positions.

In addition, reference numeral 18 shown in FIGS. 3 and 4 is a cooling piece that uses liquid such as water as a refrigerant, and is provided inside the cooling chamber 16, and has a structure in which it approaches and separates from the sample 3. Cool by direct contact with. Further, 19 shown in Figs. 2, 4, and 5 is a wiring pipe port, 20 is an exhaust port, and 21 shown in Fig. 3 is a vacuum suction and dry air inlet.

In a continuous heating furnace for material experiments configured as shown in FIGS. 2 to 5, six samples 3 are first set as shown in FIG. Then, perform the following operation.

When the chamber 1 is evacuated and the ball screw 5 is rotated in the forward direction by the forward/backward drive motor 6, the ball screw nut 7 moves forward (moves to the left in FIG. 3), so the swivel base 9
The sample heating chamber 15, sample cooling chamber 16, and sample exchange chamber 17 attached thereto also move forward. Therefore, the corresponding sample 3 is heated in the heating chamber 15 as shown in FIG.

After the heating is completed, the ball screw 5 is reversely rotated by the motor 6 to move the royal crowns 15, 16, and 17 backward (moved to the right in FIG. 3) to a position where they are separated from the sample 3, and the turning motor 11 is driven. Then, the royal chambers 15, 16, and 17 are rotated together by 60 degrees (counterclockwise rotation in FIG. 4).

The motor 6 is driven again to rotate the ball screw 5 in the forward direction, and the royal crowns 15, 16, and 17 are moved forward. That is, the two samples heated in the above operation are cooled in a cooling chamber, and two new samples are heated at the same time.

After this heating and cooling (simultaneous) is completed, the motor 6 moves it backward again, the turning motor 11 rotates it another 60 degrees, and then the motor 6 moves it forward.

While the samples 5 are being heated and cooled in each of the heating chambers 15 and cooling chambers 16, dry air is blown into the sample exchange chamber 17 to exchange the samples and evacuate it.

After completing the above steps, rotate the unit 1 in the opposite direction (clockwise rotation in Figure 4).
Rotate it 20 degrees, return it to the initial position, and repeat this operation.

As described above, according to the present invention, since the inside of the chamber is vacuum, there is no need to turn off the heater when moving the sample heating chamber, and the temperature does not drop. Moreover, due to the vacuum inside the chamber, the sample in the heating chamber is heated immediately after sample replacement, and the roaster 1
This eliminates energy consumption and meets the purpose of energy conservation.

In particular, in the present invention, in addition to a sample heating chamber and a sample cooling chamber, a sample exchange chamber is arranged around the central axis of the vacuum chamber, so that samples can be exchanged while other samples are being heated and cooled. Even if sufficient replacement time is available and the sample heating and holding time is short, the entire 1゛ schedule is not affected by the replacement time.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional side view of a conventional space experimental reactor, Fig. 2 is a front view showing an embodiment of the present invention, Fig. 5 is a partial cross-sectional side view of Fig. 3 is a sectional front view taken along section line A--A in FIG. 3, and FIG. 5 is a sectional front view taken along section line B--B in FIG. 1 building - vacuum chamber, 2... flange surface, 3...
Sample, 4...Center, 5...Ball screw, 6...Motor for longitudinal movement, 7...Pole nut, 8...Bearing, 9...Swivel base 1°1...Swivel motor, 15・
... Sample heating chamber, 16... Sample cooling chamber, 17... Sample replacement chamber, 1B... Cooling piece. 5th prisoner 1

Claims (1)

[Claims] 1. A sample heating chamber arranged around the central axis within the vacuum chamber to accommodate a plurality of samples set on a circular arc with a constant radius from the center of the flange surface of the vacuum chamber and at positions with equal central angles. , a sample cooling chamber, and a sample exchange chamber, and seven units, a back-and-forth movement device that moves these chambers in the direction of the central axis and a rotation device that rotates them around the central axis. A continuous heating furnace for materials experiments.