JP2012093185A - Salt solution spray device - Google Patents

Salt solution spray device Download PDF

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JP2012093185A
JP2012093185A JP2010239900A JP2010239900A JP2012093185A JP 2012093185 A JP2012093185 A JP 2012093185A JP 2010239900 A JP2010239900 A JP 2010239900A JP 2010239900 A JP2010239900 A JP 2010239900A JP 2012093185 A JP2012093185 A JP 2012093185A
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solution
salt solution
test piece
sprayer
salt
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Hisanao Nakahara
久直 中原
Sakae Fujita
栄 藤田
Nobue Fujibayashi
亘江 藤林
Shigeo Suga
茂雄 須賀
Makoto Watanabe
真 渡辺
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JFE Steel Corp
Suga Test Instruments Co Ltd
JFE Techno Research Corp
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JFE Steel Corp
Suga Test Instruments Co Ltd
JFE Techno Research Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a salt solution spray device capable of uniformly spraying salt solution particles on a surface of a specimen and controlling coating weight.SOLUTION: A salt solution spray device comprises a device body 11 which constitutes a solution spray chamber 12 for spraying a salt solution on a surface of a metal specimen 13, and a solution sprayer 15 which is arranged in the solution spray chamber 12 and has a gas-liquid injection nozzle in downward direction. The solution spray chamber 12 is provided with a blower 25 which sends air to the solution spray chamber 12 from above the solution sprayer 15, and an exhaust system 28 which exhausts the air sent from the blower 25 to the solution spray chamber 12 from a position below a specimen stand 17 transported to a lower position of the solution sprayer 15.

Description

本発明は、塩水噴霧試験、キャス（CASS：Copper-Accelerated Acetic Acid Salt Spray）試験などの腐食促進試験を実施するときに用いられる塩溶液噴霧装置に関するものである。   The present invention relates to a salt solution spraying device used when performing a corrosion acceleration test such as a salt spray test and a CAS (Copper-Accelerated Acetic Acid Salt Spray) test.

塩溶液の試験片への塗布方法の一つであるＪＩＳ Ｚ ２３７１に規定されている塩水噴霧試験での試験片への塩溶液の付着方法は、噴霧した塩溶液を自由落下させて、試験片に付着させる方法である。この方式では噴霧下の試験片は同一の付着量となり、試験片一枚毎に付着塩溶液量を変えることはできない。
試験片一枚毎に付着塩溶液量を変えられる塩溶液の付着方法としては、特許文献１に記載されているようにノズルを用いて塩溶液粒子を吹き付ける方式がある。これは、試験片載置台の上に載置された複数個の試験片を槽内に設けられた塩溶液吐出機構の下方位置に試験片移送機構により移送し、該試験片の表面に向けて塩溶液粒子を加圧空気と共に塩溶液吐出機構から吐出して塩溶液を噴霧するものである。 The method of attaching a salt solution to a test piece in a salt spray test prescribed in JIS Z 2371, which is one of the methods for applying a salt solution to a test piece, is to drop the sprayed salt solution freely, It is the method of making it adhere to. In this method, the test pieces under spraying have the same amount of adhesion, and the amount of the salt solution cannot be changed for each test piece.
As a method for adhering a salt solution that can change the amount of the adhering salt solution for each test piece, there is a method in which salt solution particles are sprayed using a nozzle as described in Patent Document 1. This is because a plurality of test pieces mounted on the test piece mounting table are transferred to a position below the salt solution discharge mechanism provided in the tank by the test piece transfer mechanism and directed toward the surface of the test piece. The salt solution particles are discharged from the salt solution discharge mechanism together with the pressurized air to spray the salt solution.

特開２０１０−８５１４４号公報（００１１−００１３、図１）JP 2010-85144 A (0011-0013, FIG. 1)

このような塩溶液噴霧装置によると、試験片載置台の上に載置された複数個の試験片に対して塩溶液粒子を一度に噴霧することが可能であるが、試験精度を高めるためには、各試験片の表面に塩溶液粒子を均一に噴霧する必要がある。しかしながら、塩溶液粒子と共に塩溶液吐出機構から吐出された加圧空気が試験片の表面に当たると、加圧空気が別の試験片の方向に反射する。このため、この別の試験片の表面に向かって流れていた加圧空気の流れが、反射した加圧空気によって乱されてしまう。この結果、各試験片の表面に塩溶液粒子を均一に噴霧することや付着量の制御が難しいという問題があった。   According to such a salt solution spraying apparatus, it is possible to spray salt solution particles on a plurality of test pieces mounted on the test piece mounting table at one time. Needs to spray the salt solution particles uniformly on the surface of each test piece. However, when the pressurized air discharged from the salt solution discharge mechanism together with the salt solution particles hits the surface of the test piece, the pressurized air is reflected in the direction of another test piece. For this reason, the flow of the pressurized air flowing toward the surface of this other test piece is disturbed by the reflected pressurized air. As a result, there is a problem that it is difficult to uniformly spray the salt solution particles on the surface of each test piece and to control the amount of adhesion.

また、塩溶液粒子を均一に噴霧しても、噴霧中に液が蒸発してしまうと噴霧した塩溶液の濃度にバラツキができてしまうという問題も生じた。
本発明は上述した問題点を解決すべくなされたものであり、その目的は、試験片の表面に塩溶液粒子を均一に噴霧することができ、付着量の制御もできる塩溶液噴霧装置を提供することにある。 In addition, even when the salt solution particles are sprayed uniformly, if the liquid evaporates during spraying, the concentration of the sprayed salt solution varies.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a salt solution spraying apparatus that can spray salt solution particles uniformly on the surface of a test piece and control the amount of adhesion. There is to do.

上記課題を解決するために、本発明の請求項１に係る発明は、金属からなる試験片の表面に塩溶液を噴霧する塩溶液噴霧装置であって、前記試験片の表面に塩溶液を噴霧するための溶液噴霧室を形成する装置本体と、該装置本体により形成された溶液噴霧室内に気液噴出口を下向きにして設けられた溶液噴霧器と、前記溶液噴霧室に空気を前記溶液噴霧器の上方から送風する送風機と、該送風機から前記溶液噴霧室に送風された空気を前記溶液噴霧器の下方に位置する試験片の下方位置から排気する排気装置とを備えたことを特徴とする。   In order to solve the above problems, the invention according to claim 1 of the present invention is a salt solution spraying apparatus for spraying a salt solution onto the surface of a test piece made of metal, and sprays the salt solution onto the surface of the test piece. An apparatus main body for forming a solution spray chamber, a solution sprayer provided with a gas-liquid jet port facing downward in the solution spray chamber formed by the apparatus main body, and air in the solution spray chamber of the solution sprayer A blower that blows air from above, and an exhaust device that exhausts air blown from the blower to the solution spray chamber from a lower position of a test piece located below the solution sprayer.

本発明の請求項２に係る発明は、請求項１に記載の塩溶液噴霧装置において、前記溶液噴霧室を加湿する加湿器をさらに備えたことを特徴とする。
本発明の請求項３に係る発明は、請求項２に記載の塩溶液噴霧装置において、前記溶液噴霧室の湿度を計測する湿度計と、該湿度計により計測された湿度を基に前記加湿器を制御する制御装置とをさらに備えたことを特徴とする。
本発明の請求項４に係る発明は、請求項１〜３のいずれか一項に記載の塩溶液噴霧装置において、前記溶液噴霧器の溶液噴霧量と溶液噴霧圧に応じて前記送風機の送風空気量を制御すると共に前記送風機の送風空気量に応じて前記排気装置の排気空気量を制御する制御装置をさらに備えたことを特徴とする。 The invention according to claim 2 of the present invention is the salt solution sprayer according to claim 1, further comprising a humidifier for humidifying the solution spray chamber.
The invention according to claim 3 of the present invention is the salt solution spray device according to claim 2, wherein the humidity meter for measuring the humidity of the solution spray chamber, and the humidifier based on the humidity measured by the hygrometer. And a control device for controlling the operation.
The invention according to claim 4 of the present invention is the salt solution spray device according to any one of claims 1 to 3, wherein the blower air amount of the blower according to the solution spray amount and the solution spray pressure of the solution sprayer And a control device for controlling the exhaust air amount of the exhaust device in accordance with the blown air amount of the blower.

本発明によれば、試験片の表面に当って流れ方向が変化した加圧空気によって塩溶液粒子が乱されてしまうことを抑制でき、溶液噴霧器から噴霧された塩溶液粒子を送風機から送風された空気の流れに乗って試験片の表面に付着させることができるので、試験片の表面に塩溶液粒子を均一に噴霧することができる。また、塩溶液粒子の付着量や粒子径等を試験条件に応じて精度よく制御することができる。   According to the present invention, the salt solution particles can be prevented from being disturbed by the pressurized air whose flow direction has been changed by hitting the surface of the test piece, and the salt solution particles sprayed from the solution sprayer were blown from the blower. Since it can be attached to the surface of the test piece by riding on the air flow, the salt solution particles can be uniformly sprayed on the surface of the test piece. In addition, the amount of salt solution particles attached, the particle diameter, and the like can be accurately controlled according to the test conditions.

本発明の一実施形態に係る塩溶液噴霧装置を示す図である。It is a figure which shows the salt solution spraying apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係る塩溶液噴霧装置を用いて塩水噴霧試験などの腐食促進試験を行う場合の手順を示す図である。It is a figure which shows the procedure in the case of performing corrosion promotion tests, such as a salt spray test, using the salt solution spraying apparatus which concerns on one Embodiment of this invention. 溶液噴霧器に塩溶液を供給する塩溶液供給ポンプの周波数と試験片表面に付着した塩分量との関係を示す図である。It is a figure which shows the relationship between the frequency of the salt solution supply pump which supplies a salt solution to a solution sprayer, and the amount of salt adhering to the test piece surface. 溶液噴霧器の移動ピッチと試験片表面に付着した塩分量との関係を示す図である。It is a figure which shows the relationship between the movement pitch of a solution sprayer, and the amount of salt adhering to the test piece surface. 溶液噴霧器の溶液噴出速度と試験片表面に付着した塩分量との関係を示す図である。It is a figure which shows the relationship between the solution ejection speed of a solution sprayer, and the amount of salt adhering to the test piece surface.

以下、図面を参照して本発明の一実施形態について説明する。
図１は本発明の一実施形態に係る塩溶液噴霧装置を示す図であって、この塩溶液噴霧装置１０は装置本体１１、溶液噴霧器１５、試験片搬送機構１６、溶液タンク１９、流量センサ２２、圧力センサ２３、送風機２５、排気装置２８、加湿器３１、湿度計３２および制御装置３３，３４を備えている。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a salt solution spraying device according to an embodiment of the present invention. The salt solution spraying device 10 includes a device main body 11, a solution sprayer 15, a test piece transport mechanism 16, a solution tank 19, and a flow rate sensor 22. , Pressure sensor 23, blower 25, exhaust device 28, humidifier 31, hygrometer 32, and control devices 33 and 34.

装置本体１１は所定の濃度に調整された塩溶液を所定の雰囲気温度（例えば３５℃）で噴霧するための溶液噴霧室１２を形成するものである。また、装置本体１１は、溶液噴霧室１２に金属からなる試験片１３を搬入したり溶液噴霧室１２から試験片１３を搬出したりするための試験片搬入出口１４を装置本体１１の側面部に有してもよい。なお、試験片１３は手で所定の位置においてもかまわない。以下、試験片の搬入搬出装置を設けた場合を例にとり説明する。   The apparatus main body 11 forms a solution spray chamber 12 for spraying a salt solution adjusted to a predetermined concentration at a predetermined atmospheric temperature (for example, 35 ° C.). Further, the apparatus main body 11 has a test piece loading / unloading port 14 for carrying a test piece 13 made of metal into the solution spraying chamber 12 or carrying out the test piece 13 from the solution spraying chamber 12 on the side surface of the apparatus main body 11. You may have. Note that the test piece 13 may be placed in a predetermined position by hand. Hereinafter, a case where a test piece loading / unloading device is provided will be described as an example.

溶液噴霧器１５は試験片１３の表面に微粒子状の塩溶液を加圧空気と共に噴霧するものであって、気液噴出口を下向きにして溶液噴霧室１２に設けられている。
試験片搬送機構１６は複数個の試験片を載置可能な試験片載置台１７を介して試験片１３を溶液噴霧器１５の下方位置に搬送するものであって、例えば多数の試験片搬送ローラ１８から構成されている。 The solution sprayer 15 sprays the fine salt solution together with the pressurized air on the surface of the test piece 13 and is provided in the solution spray chamber 12 with the gas-liquid jet port facing downward.
The test strip transport mechanism 16 transports the test strip 13 to a position below the solution sprayer 15 via a test strip mounting table 17 on which a plurality of test strips can be mounted. It is composed of

溶液タンク１９は試験片１３の表面に噴霧される塩溶液を貯留するものであって、この溶液タンク１９に貯留された塩溶液は塩溶液供給ポンプ２０および塩溶液供給ライン２１を経て溶液噴霧器１５に供給されるようになっている。
流量センサ２２は塩溶液供給ライン２１を流通する塩溶液の流量を検出するものであって、この流量センサ２２で検出された塩溶液の流量は溶液噴霧器１５の塩溶液噴霧量情報として制御装置３４に供給されている。 The solution tank 19 stores a salt solution sprayed on the surface of the test piece 13, and the salt solution stored in the solution tank 19 passes through a salt solution supply pump 20 and a salt solution supply line 21, and is a solution sprayer 15. To be supplied.
The flow rate sensor 22 detects the flow rate of the salt solution flowing through the salt solution supply line 21, and the flow rate of the salt solution detected by the flow rate sensor 22 is the control device 34 as salt solution spray amount information of the solution sprayer 15. Has been supplied to.

圧力センサ２３は加圧空気供給ライン２４から溶液噴霧器１５に供給される加圧空気の圧力を検出するものであって、この圧力センサ２３により検出された加圧空気の圧力は溶液噴霧器１５の塩溶液噴霧圧情報として制御装置３４に供給されている。
送風機２５は装置本体１１により形成された溶液噴霧室１２に空気を溶液噴霧器１５の上方から送風するものであって、例えばファン２６と、このファン２６で発生した空気流を整流する整流器２７とから構成されている。 The pressure sensor 23 detects the pressure of the pressurized air supplied from the pressurized air supply line 24 to the solution sprayer 15, and the pressure of the pressurized air detected by the pressure sensor 23 is the salt of the solution sprayer 15. It is supplied to the controller 34 as solution spray pressure information.
The blower 25 blows air from above the solution sprayer 15 into the solution spray chamber 12 formed by the apparatus main body 11, and includes, for example, a fan 26 and a rectifier 27 that rectifies the air flow generated by the fan 26. It is configured.

排気装置２８は送風機２５から溶液噴霧室１２に送風された空気を試験片搬送機構１６により溶液噴霧器１５の下方位置に搬送された試験片載置台１７の下方位置から排気するものであって、例えばファン２９と、このファン２９の上方に配置された整流器３０とから構成されている。
加湿器３１は装置本体１１により形成された溶液噴霧室１２を加湿するものであって、溶液噴霧器１５から噴霧された塩溶液粒子が飛翔に蒸発しない湿度（例えば湿度１００％）となるように溶液噴霧室１２を加湿するように構成されている。
湿度計３２は溶液噴霧室１２の湿度を計測するものであって、この湿度計３２から出力された信号は溶液噴霧室１２の湿度情報として制御装置３３に供給されている。 The exhaust device 28 exhausts the air blown from the blower 25 to the solution spray chamber 12 from the lower position of the test piece mounting table 17 which is transported to the lower position of the solution sprayer 15 by the test strip transport mechanism 16. The fan 29 and a rectifier 30 disposed above the fan 29 are configured.
The humidifier 31 humidifies the solution spray chamber 12 formed by the apparatus main body 11, and the solution is set so that the salt solution particles sprayed from the solution sprayer 15 have a humidity (for example, humidity of 100%) that does not evaporate in flight. The spray chamber 12 is configured to be humidified.
The hygrometer 32 measures the humidity of the solution spray chamber 12, and a signal output from the hygrometer 32 is supplied to the control device 33 as humidity information of the solution spray chamber 12.

制御装置３３は加湿器３１を制御するものであって、湿度計３２により計測された溶液噴霧室１２の湿度に基づいて加湿器３１を制御するように構成されている。
制御装置３４は流量センサ２２および圧力センサ２３から出力された信号に基づいて送風機２５の送風空気量と排気装置２８の排気空気量を制御するものであって、送風機２５の送風空気量は溶液噴霧器１５の溶液噴霧量と溶液噴霧圧に応じて制御され、排気装置２８の排気空気量は送風機２５の送風空気量に応じて制御されるようになっている。
なお、溶液噴霧器１５は図示しない噴霧器駆動機構により試験片１３に対して水平面内で互いに直交するＸＹ方向に駆動されるようになっている。 The control device 33 controls the humidifier 31 and is configured to control the humidifier 31 based on the humidity of the solution spray chamber 12 measured by the hygrometer 32.
The control device 34 controls the blown air amount of the blower 25 and the exhausted air amount of the exhaust device 28 based on the signals output from the flow sensor 22 and the pressure sensor 23. The blown air amount of the blower 25 is a solution sprayer. 15 is controlled according to the solution spray amount and the solution spray pressure, and the exhaust air amount of the exhaust device 28 is controlled according to the blown air amount of the blower 25.
The solution sprayer 15 is driven in the XY directions orthogonal to each other in the horizontal plane with respect to the test piece 13 by a sprayer drive mechanism (not shown).

図２は本発明の一実施形態に係る塩溶液噴霧装置を用いて試験片の表面に塩溶液を噴霧する場合の手順を示す図であって、上述した塩溶液噴霧装置１０を用いて試験片１３の表面に塩溶液を噴霧する場合には、図２（ａ）に示すように、複数個の試験片１３を試験片載置台１７の上面に載置する。そして、試験片載置台１７の上面に載置された複数個の試験片１３を試験片搬送機構１６により溶液噴霧器１５の下方位置に搬送するとともに、溶液噴霧室１２の湿度を所定の湿度（例えば溶液噴霧器１５から噴霧された塩溶液粒子が蒸発しない程度の湿度）に加湿器３１により加湿する。   FIG. 2 is a diagram showing a procedure for spraying a salt solution onto the surface of a test piece using the salt solution spraying apparatus according to an embodiment of the present invention, and the test piece using the salt solution spraying apparatus 10 described above. When spraying the salt solution on the surface of 13, a plurality of test pieces 13 are placed on the upper surface of the test piece placing table 17 as shown in FIG. Then, the plurality of test pieces 13 placed on the upper surface of the test piece mounting table 17 are transported to a position below the solution sprayer 15 by the test strip transport mechanism 16 and the humidity of the solution spray chamber 12 is set to a predetermined humidity (for example, The humidifier 31 humidifies the salt solution particles sprayed from the solution sprayer 15 so as not to evaporate.

試験片載置台１７の上面に載置された複数個の試験片１３を溶液噴霧器１５の下方位置に搬送したならば、送風機２５を作動させて溶液噴霧器１５の上方から空気を溶液噴霧室１２に送風すると共に、排気装置２８を作動させて溶液噴霧室１２に送風された空気を試験片載置台１７の下方位置から排気する。そして、図２（ｂ）に示すように、この状態で溶液噴霧器１５の下端部から塩溶液粒子を加圧空気と共に試験片１３の表面に向けて噴出する。このとき、送風機２５から送風された空気は、図２（ｂ）に示すように、溶液噴霧器１５が設けられた溶液噴霧室１２の内部を上方から下方に流れる空気流３５を形成する。   When the plurality of test pieces 13 placed on the upper surface of the test piece placing table 17 are conveyed to a position below the solution sprayer 15, the air blower 25 is operated to bring air from above the solution sprayer 15 into the solution spray chamber 12. While the air is blown, the exhaust device 28 is operated to exhaust the air blown into the solution spray chamber 12 from the lower position of the test piece mounting table 17. Then, as shown in FIG. 2 (b), salt solution particles are ejected from the lower end of the solution sprayer 15 together with the pressurized air toward the surface of the test piece 13 as shown in FIG. At this time, as shown in FIG. 2B, the air blown from the blower 25 forms an air flow 35 that flows downward from above in the solution spray chamber 12 in which the solution sprayer 15 is provided.

従って、上述した本発明の一実施形態では、試験片１３の表面に当って流れ方向が変化した加圧空気によって塩溶液粒子が乱されてしまうことを抑制でき、溶液噴霧器１５から噴霧された塩溶液粒子を送風機２５から送風された空気の流れに乗って試験片１３の表面に付着させることができるので、試験片載置台１７の上に載置された各試験片１３の表面に塩溶液粒子を均一に噴霧することができる。   Therefore, in the above-described embodiment of the present invention, the salt solution particles can be prevented from being disturbed by the pressurized air whose flow direction has been changed by hitting the surface of the test piece 13, and the salt sprayed from the solution sprayer 15. Since solution particles can ride on the flow of air blown from the blower 25 and adhere to the surface of the test piece 13, salt solution particles are placed on the surface of each test piece 13 placed on the test piece mounting table 17. Can be sprayed uniformly.

また、上述した本発明の一実施形態では、溶液噴霧室１２を加湿する加湿器３１を備えたことで、溶液噴霧室１２の湿度を溶液噴霧器１５から噴霧された塩溶液粒子が蒸発しない程度まで加湿することができる。
また、溶液噴霧室１２の湿度を計測する湿度計３２と、湿度計３２により計測された湿度に基づいて加湿器３１を制御する制御装置３３を備えたことで、加湿器３１の加湿量などを予め定めた最適値に調整することができる。 Moreover, in one Embodiment of this invention mentioned above, by providing the humidifier 31 which humidifies the solution spray chamber 12, the humidity of the solution spray chamber 12 is made to such an extent that the salt solution particle sprayed from the solution sprayer 15 does not evaporate. Can be humidified.
In addition, a humidity meter 32 for measuring the humidity of the solution spray chamber 12 and a control device 33 for controlling the humidifier 31 based on the humidity measured by the hygrometer 32 are provided. It can be adjusted to a predetermined optimum value.

さらに、送風機２５の送風空気量を溶液噴霧器１５の溶液噴霧量と溶液噴霧圧に応じて制御すると共に排気装置２８の排気空気量は送風機２５の送風空気量に応じて制御する制御装置３４を備えたことで、溶液噴霧器１５の上方から溶液噴霧室１２に送風される送風空気量を溶液噴霧器１５から噴霧される塩溶液の塩分濃度や噴霧量に応じて最適値に調整できると共に溶液噴霧器１５の下方位置に搬送された試験片載置台１７の下方から排気される排気空気量を送風機２５の送風空気量に応じて調整することができ、従って、溶液噴霧器１５の下方位置に搬送された試験片１３の表面全体に微粒子状の塩溶液を均一に撒布することができる。
塩溶液供給ポンプ２０の周波数を０〜８０Ｈｚ、塗り重ねピッチ（溶液噴霧器１５の移動ピッチ）を１０〜４０ｍｍ、溶液噴霧器１５の移動速度を１０〜４０ｍ／ｍｉｎの範囲で変更して試験片１３の表面に３．５質量％の塩化ナトリウム溶液を噴霧したときに試験片表面に付着した塩分量を調べた結果を図３〜図５に示す。 Furthermore, a control device 34 is provided that controls the amount of air blown by the blower 25 according to the amount of solution sprayed by the solution sprayer 15 and the solution spray pressure, and the amount of exhaust air of the exhaust device 28 is controlled according to the amount of air blown by the blower 25. As a result, the amount of air blown from above the solution sprayer 15 to the solution spray chamber 12 can be adjusted to an optimum value according to the salt concentration and spray amount of the salt solution sprayed from the solution sprayer 15 and the solution sprayer 15 The amount of exhaust air exhausted from below the test piece mounting table 17 conveyed to the lower position can be adjusted according to the amount of air blown by the blower 25, and therefore the test piece conveyed to the lower position of the solution sprayer 15. The fine salt solution can be uniformly distributed over the entire surface of 13.
The frequency of the salt solution supply pump 20 is changed to 0 to 80 Hz, the coating pitch (moving pitch of the solution sprayer 15) is changed to 10 to 40 mm, and the moving speed of the solution sprayer 15 is changed in the range of 10 to 40 m / min. The results of examining the amount of salt adhering to the surface of the test piece when a 3.5 mass% sodium chloride solution was sprayed on the surface are shown in FIGS.

図３〜図５に示すように、塩溶液供給ポンプ２０の周波数を上げると試験片１３の表面に付着する塩分量が直線的に増加することがわかり、また、塗り重ねピッチを大きくすると試験片１３の表面に付着する塩分量が直線的に減少することがわかる。さらに、溶液噴霧器１５の移動速度を早くすると試験片１３の表面に付着する塩分量が直線的に減少することがわかる。
なお、上述した本発明の一実施形態では、複数個の試験片を載置可能な試験片載置台を介して試験片を溶液噴霧器の下方位置に搬送する試験片搬送機構として、多数の試験片搬送ローラからなるものを例示したが、これに限られるものではなく、試験片搬送機構を例えば複数の搬送コンベヤから構成してもよい。 As shown in FIGS. 3 to 5, it can be seen that when the frequency of the salt solution supply pump 20 is increased, the amount of salt adhering to the surface of the test piece 13 increases linearly, and when the coating pitch is increased, the test piece is increased. It turns out that the amount of salt adhering to the surface of 13 decreases linearly. Furthermore, it can be seen that when the moving speed of the solution sprayer 15 is increased, the amount of salt attached to the surface of the test piece 13 decreases linearly.
In one embodiment of the present invention described above, a number of test pieces are used as a test piece transport mechanism for transporting a test piece to a position below the solution sprayer via a test piece mounting table on which a plurality of test pieces can be placed. Although what consists of a conveyance roller was illustrated, it is not restricted to this, You may comprise a test piece conveyance mechanism from a some conveyance conveyor, for example.

１０…塩溶液噴霧装置
１１…装置本体
１２…溶液噴霧室
１３…試験片
１５…溶液噴霧器
１６…試験片搬送機構
１７…試験片載置台
１９…溶液タンク
２０…塩溶液供給ポンプ
２１…塩溶液供給ライン
２２…流量センサ
２３…圧力センサ
２４…加圧空気供給ライン
２５…送風機
２８…排気装置
３１…加湿器
３２…湿度計
３３，３４…制御装置 DESCRIPTION OF SYMBOLS 10 ... Salt solution spraying device 11 ... Apparatus main body 12 ... Solution spraying chamber 13 ... Test piece 15 ... Solution sprayer 16 ... Test piece conveyance mechanism 17 ... Test piece mounting base 19 ... Solution tank 20 ... Salt solution supply pump 21 ... Salt solution supply Line 22 ... Flow sensor 23 ... Pressure sensor 24 ... Pressurized air supply line 25 ... Blower 28 ... Exhaust device 31 ... Humidifier 32 ... Hygrometer 33, 34 ... Control device

Claims (4)

金属からなる試験片の表面に塩溶液を噴霧する塩溶液噴霧装置であって、前記試験片の表面に塩溶液を噴霧するための溶液噴霧室を形成する装置本体と、該装置本体により形成された溶液噴霧室内に気液噴出口を下向きにして設けられた溶液噴霧器と、前記溶液噴霧室に空気を前記溶液噴霧器の上方から送風する送風機と、該送風機から前記溶液噴霧室に送風された空気を前記溶液噴霧器の下方に位置する試験片の下方位置から排気する排気装置とを備えたことを特徴とする塩溶液噴霧装置。   A salt solution spraying device for spraying a salt solution on the surface of a test piece made of metal, the device main body forming a solution spray chamber for spraying the salt solution on the surface of the test piece, and the device main body. A solution sprayer provided with a gas-liquid jet port facing downward in the solution spray chamber, a blower for blowing air into the solution spray chamber from above the solution sprayer, and air blown from the blower to the solution spray chamber A salt solution spraying apparatus, comprising: an exhaust device for exhausting gas from a position below a test piece located below the solution sprayer. 前記溶液噴霧室を加湿する加湿器をさらに備えたことを特徴とする請求項１に記載の塩溶液噴霧装置。   The salt solution spraying device according to claim 1, further comprising a humidifier that humidifies the solution spray chamber. 前記溶液噴霧室の湿度を計測する湿度計と、該湿度計により計測された湿度を基に前記加湿器を制御する制御装置とをさらに備えたことを特徴とする請求項２に記載の塩溶液噴霧装置。   The salt solution according to claim 2, further comprising: a hygrometer that measures humidity in the solution spray chamber; and a control device that controls the humidifier based on the humidity measured by the hygrometer. Spraying equipment. 前記溶液噴霧器の溶液噴霧量と溶液噴霧圧に応じて前記送風機の送風空気量を制御すると共に前記送風機の送風空気量に応じて前記排気装置の排気空気量を制御する制御装置をさらに備えたことを特徴とする請求項１〜３のいずれか一項に記載の塩溶液噴霧装置。   The apparatus further includes a control device that controls the amount of air blown from the blower according to the solution spray amount and the solution spray pressure of the solution sprayer and controls the amount of exhaust air from the exhaust device according to the amount of air blown from the blower. The salt solution spraying device according to any one of claims 1 to 3, wherein
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2498059A (en) * 2011-12-27 2013-07-03 Hitachi Ltd Atmospheric corrosion test procedure and apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943331A (en) * 1982-09-03 1984-03-10 Gas Shikenki Kk Composite cycle tester
JPH0419542A (en) * 1990-02-23 1992-01-23 Suga Shikenki Kk Corrosion testing method and corrosion testing device for metallic material
JPH1151823A (en) * 1997-08-05 1999-02-26 Hitachi Ltd Environment-testing apparatus
JP2006125991A (en) * 2004-10-28 2006-05-18 Jfe Steel Kk Rust resistance evaluation testing device
JP2006322933A (en) * 2005-05-16 2006-11-30 Atlas Material Testing Technology Llc Noncontact temperature sensor for weathering test system
JP2007113994A (en) * 2005-10-19 2007-05-10 Mitsubishi Electric Corp Life evaluation method and device for aluminum
JP2007206017A (en) * 2006-02-06 2007-08-16 Railway Technical Res Inst Corrosion testing device and corrosion testing method
JP2010085144A (en) * 2008-09-30 2010-04-15 Hitachi Ltd Testing equipment for testing acceleration of atmospheric corrosion

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5943331A (en) * 1982-09-03 1984-03-10 Gas Shikenki Kk Composite cycle tester
JPH0419542A (en) * 1990-02-23 1992-01-23 Suga Shikenki Kk Corrosion testing method and corrosion testing device for metallic material
JPH1151823A (en) * 1997-08-05 1999-02-26 Hitachi Ltd Environment-testing apparatus
JP2006125991A (en) * 2004-10-28 2006-05-18 Jfe Steel Kk Rust resistance evaluation testing device
JP2006322933A (en) * 2005-05-16 2006-11-30 Atlas Material Testing Technology Llc Noncontact temperature sensor for weathering test system
JP2007113994A (en) * 2005-10-19 2007-05-10 Mitsubishi Electric Corp Life evaluation method and device for aluminum
JP2007206017A (en) * 2006-02-06 2007-08-16 Railway Technical Res Inst Corrosion testing device and corrosion testing method
JP2010085144A (en) * 2008-09-30 2010-04-15 Hitachi Ltd Testing equipment for testing acceleration of atmospheric corrosion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2498059A (en) * 2011-12-27 2013-07-03 Hitachi Ltd Atmospheric corrosion test procedure and apparatus
GB2498059B (en) * 2011-12-27 2014-08-20 Hitachi Ltd Atmospheric corrosion test procedure

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