JP2005181027A - Weather/light resistance testing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weather/light resistance testing machine capable of finely adjusting the surface temperature of a sample while adjusting the temperature in a tank and the temperature of a black panel. <P>SOLUTION: In the weather/light resistance testing machine for performing the weather/light resistance test of the sample using an artificial light source, a wind with a wind velocity of 0.2 m/sec or below controlled in temperature is blown on the surface of the sample from below (1) and a heater is arranged above the blowing port of a blower for taking the open air in a test tank and outside the frame of the blowing port (2) to widen a wind passage. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a weathering test apparatus for examining weathering resistance of fibers, dyes, plastics and the like using an artificial light source such as an ultraviolet carbon arc or a xenon arc. More specifically, the present invention relates to a configuration of an air path related to control of a sample surface temperature in a weather resistance test in which deterioration of a sample is accelerated by light and radiant heat from a light source. In particular, it is a weathering light test apparatus used for a color fading test of a sample, has a heater, is optimal for performing a test at a black panel temperature of 83 ° C., and can be used at a black panel temperature of 63 ° C. The present invention relates to a weather light test apparatus including a type fade meter.

The light resistance test has been conducted for a long time as one of the quality evaluations of fibers and dyes. In particular, a fade meter using an ultraviolet carbon arc or a xenon arc as a light source is like a prototype of a weathering test apparatus. (For example, refer nonpatent literature 1).
Suga Naga City, “Weatherproof Light and Color (Revised Version)”, Suga Test Instruments Co., Ltd., February 20, 1988, P.56-57

  The weatherproof light test apparatus has a light source in the center of a test chamber, and a sample frame on which a sample is attached rotates around the light source to irradiate the sample with light. Since the sample surface rises due to the radiant heat of light and the temperature of the air surrounding the sample, in order to keep the sample surface temperature constant, air is sent from a blower arranged below the test chamber.

  In weathering light test equipment such as open-type fade meters, wind introduces air at the place where the equipment is installed into the test equipment, replaces it with air in the test chamber, and maintains the sample surface temperature at a predetermined temperature. Like that. The open type fade meter includes a high-temperature type fade meter for performing a test at a black panel temperature of 83 ° C. in addition to a standard type fade meter for performing a test at a black panel temperature of 63 ° C.

  On the other hand, there was a demand to perform tests at black panel temperatures of 63 ° C. and 83 ° C. without using two units of the standard type and the high temperature type.

  By the way, in the open type fade meter, in the high temperature type fade meter for dealing with the black panel temperature of 83 ° C., a band heater is wound around the shaft in order to increase the temperature inside the tank quickly.

  When the black panel temperature was 63 ° C. ± 3 ° C. with a standard fade meter, the temperature in the test chamber was approximately 40 ° C. to 42 ° C. However, in the high-temperature type fade meter, since the band heater is wound around the shaft as described above, when the black panel temperature is 63 ° C. ± 3 ° C. without turning on the heater, the temperature in the test chamber is approximately 34. There was a problem that it was not the same as a standard type fade meter.

  Therefore, when performing both the tests at a black panel temperature of 63 ° C. and 83 ° C. with a high-temperature type fade meter, there is a possibility that the test results at the black panel temperature of 63 ° C. in the conventional fade meter may not be consistent.

By the way, in a weather light test apparatus such as a fade meter, for example, a weather light test of an automobile interior material may be performed. In that case, the wind speed of the air flowing through the sample surface is more suitable for the actual situation (see Patent Document 1). However, in order to keep the inside of the tank at a constant temperature, the air blowing means is indispensable, and the black panel temperature rises due to the interruption of the air blowing.
JP 6-52234

  The problem to be solved is that the conventional weathering test apparatus cannot finely adjust the sample surface temperature while adjusting the temperature in the bath and the temperature of the black panel.

  In addition, when performing both tests at a black panel temperature of 63 ° C. and 83 ° C. with a high-temperature type fade meter, it is inconsistent with the conventional test results of a black panel temperature of 63 ° C. with a fade meter.

  The present invention has been made in view of such problems. Therefore, the object of the present invention is to provide a weather resistance test that can finely adjust the surface temperature of the sample while adjusting the temperature in the bath and the temperature of the black panel. To provide an apparatus. Further, especially in the case of a fade meter, when performing both tests at a black panel temperature of 63 ° C. and 83 ° C. using a high-temperature type fade meter, the weather resistance is consistent with the results of the conventional black panel temperature of 63 ° C. in the fade meter. It is to provide an optical test apparatus. As a result of intensive studies to achieve the above object, the present inventors have completed the present invention through trial and error.

The weather light test apparatus of the present invention is a weather light test apparatus for performing a weather light test of a sample using an artificial light source,
(1) The temperature and the wind speed of the air flowing near the surface of the test piece are made constant by blowing air with a wind speed of 0.2 m / sec.
(2) The main feature is to widen the air passage by arranging the heater above the blower opening of the blower that takes outside air into the test tank and outside the frame of the blower opening.

The weathering light test apparatus of the present invention preferably further includes a vertical air deflector that does not have a horizontal air deflector.
Features.

  Since the weathering light test apparatus of the present invention is as described above, the sample surface temperature can be finely adjusted while adjusting the temperature in the bath and the temperature of the black panel. In addition, when performing both tests at a black panel temperature of 63 ° C. and 83 ° C., the test results of the conventional black panel temperature of 63 ° C. in the fade meter can be taken.

  The purpose of finely adjusting the sample surface temperature while adjusting the temperature inside the tank and the temperature of the black panel was realized without requiring complicated work at the work site.

  FIG. 1 is a structural diagram of Example 1 of the weathering test apparatus of the present invention. However, the breeze supply means is omitted. On the other hand, FIG. 2 is a structural diagram of a conventional high-temperature type weather resistance test apparatus.

  Conventionally, as shown in FIG. 2, a band-type heater (2) is wound around a shaft for the purpose of quickly raising the black panel temperature to 83.degree. Further, in order to prevent direct wind from hitting the sample holder (11), a donut-shaped horizontal air deflector (9) is provided on the upper part of the strip-shaped air deflector (8) for rectifying the wind. When testing at a black panel temperature of 63 ° C., even if the heater is turned off, the band-type heater itself is difficult to remove because it is difficult to remove. Then, a part of the wind from the lower part of the test tank did not flow directly to the upper part of the test tank, but hit the band-type heater or the horizontal air deflector. The ratio of the bottom area of the band heater to the wind inlet (excluding the shaft portion) was 9%, and the ratio of the bottom area of the horizontal air deflector to the wind inlet was 29%.

  Example 1 of the weathering test apparatus of the present invention shown in FIG. 1 is a high-temperature type fade meter. In Example 1, the heater (2) was arranged above the blower port (3) of the blower A (4) for taking outside air into the test tank and outside the frame of the blower port, thereby widening the air path. . In Example 1, a ring-shaped heater was used. Moreover, the strip | belt-shaped air deflector (8) without a horizontal air deflector was arrange | positioned. Therefore, in the present invention, there is nothing that obstructs the flow direction of the wind, and the wind can easily flow in the upper part of the test tank. Therefore, the temperature in the tank also increased to 40 to 42 ° C., similarly to the weathering light test apparatus which is a standard fade meter.

  FIG. 3 shows test results using Example 1 and Comparative Examples 1 and 2 of the weathering light test apparatus of the present invention. Comparative Example 1 is a conventional high-temperature weathering test apparatus shown in FIG. Comparative Example 2 is a standard type weatherproof light test apparatus. As can be seen from the figure, according to the present invention, unlike the conventional high-temperature type weathering test apparatus, even in the case of a black panel temperature of 63 ° C., the in-tank temperature can be made equal to that of the standard type weathering test apparatus.

  FIG. 4 is a structural diagram of Example 2 of the weathering light test apparatus of the present invention. The position of the heater (2) is different from that of Example 1 of the weathering light test apparatus of the present invention. It is the same in that the air passage is widened by arranging the heater (2) above the blower opening (3) of the blower A (4) for taking outside air into the test tank and outside the frame of the blower opening. . In the second embodiment of the weathering test apparatus of the present invention, the temperature and the wind speed of the air flowing near the surface of the test piece are kept constant by blowing a wind of 0.2 m / sec or less, the temperature of which is controlled from below on the sample surface. There is a breeze supply means (10). Such a breeze supply means (10) also includes Example 1 of the weathering light test apparatus of the present invention, but is omitted in FIG. In the first embodiment of the weathering light test apparatus of the present invention, the breeze supply means heaters the wind of the blower B (14) which is a second blower provided separately from the blower A (4) for adjusting the temperature in the tank. The temperature is adjusted by turning on and off, and it is attached under the sample frame (5) so as to be applied from below each sample. In order to prevent the display temperature of the black panel thermometer (12) from being changed by the slight breeze, the wind does not go to the portion of the sample holder where the black panel thermometer is located.

  Therefore, according to Example 1 of the weathering light test apparatus of the present invention, the sample surface temperature can be finely adjusted while adjusting the temperature in the bath and the temperature of the black panel. Further, in performing both the tests at the black panel temperature of 63 ° C. and 83 ° C., the test result of the conventional black panel temperature of 63 ° C. in the fade meter can be taken.

  The weather resistance test apparatus of the present invention can be applied to a light resistance test that promotes deterioration of a sample.

1 is a structural diagram of Example 1 of a weathering light test apparatus of the present invention. It is a structural diagram of a conventional high-temperature type weatherproof light testing apparatus. It is a test result using Example 1 and Comparative Examples 1 and 2 of the weathering light test apparatus of the present invention. It is a block diagram of Example 2 of the weather-proof test apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Weather-proof light test apparatus 2 Heater 3 Blower port 4 Blower A
5 Sample Frame 6 Damper 7 Directional Body 8 Strip Air Deflector 9 Horizontal Air Deflector 10 Breeze Supply Unit 11 Sample Holder 12 Black Panel Thermometer 13 Lamp 14 Blower B

Claims (2)

A weather light test apparatus for performing a weather light test of a sample using an artificial light source,
(1) The temperature and the wind speed of the air flowing near the surface of the test piece are made constant by blowing air with a wind speed of 0.2 m / sec.
(2) A weathering light test apparatus characterized in that the air passage is widened by arranging the heater above the blower opening of the blower that takes outside air into the test tank and outside the frame of the blower opening. 2. The weathering light test apparatus according to claim 1, further comprising a vertical air deflector that does not have a horizontal air deflector.