Title:
CORROSION PREVENTION DEVICE, CORROSION PREVENTION METHOD, AND WIRE ELECTRODISCHARGE MACHINING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2011/067818
Kind Code:
A1
Abstract:
Disclosed is a corrosion prevention device provided with a water deionization means (9) consisting of hydrogen ion type resin particles and hydroxide ion type resin particles; a corrosion prevention means (8) consisting of positive ion type resin particles, and negative ion type resin particles supporting anti-corrosion ions; an electrical conductivity measuring means (7) for measuring the actual values of the electrical conductivity of machining liquid; and control means (10, 11, 12) for controlling the passing of the machining liquid into the water deionization means (9) and the corrosion prevention means (8) on the basis of the electrical conductivity measuring means (7). On the basis of predetermined first and second electrical conductivity values and of the actual values measured by the electrical conductivity measuring means (7), the control means performs operations wherein the machining liquid is passed into the water deionization means and the corrosion prevention means until the actual value of the electrical conductivity of the machining liquid reaches the first electrical conductivity value. When the actual value reaches the first electrical conductivity value, the control means discontinues the passing of the machining liquid into the water deionization means (9), resulting in the machining liquid being passed only into the corrosion prevention means (8), and when the actual value rises to the second electrical conductivity value, the control means resumes the passing of the machining liquid into the water deionization means (9), resulting in the machining liquid being passed into the water deionization means (9) and the corrosion prevention means (8).
Inventors:
KAWARAI, Hisakatsu (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
瓦井久勝 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
KURIKI, Hironori (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
栗木宏徳 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
TANIMURA, Jyunji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
谷村純二 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
瓦井久勝 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
KURIKI, Hironori (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
栗木宏徳 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
TANIMURA, Jyunji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
谷村純二 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
Application Number:
JP2009/006617
Publication Date:
June 09, 2011
Filing Date:
December 04, 2009
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
RYODEN KOKI ENGINEERING CO.,LTD. (1-14, Yada-Minami 5-chome Higashi-ku, Nagoya-sh, Aichi 48, 〒4610048, JP)
菱電工機エンジニアリング株式会社 (〒48 愛知県名古屋市東区矢田南五丁目１番１４号 Aichi, 〒4610048, JP)
KAWARAI, Hisakatsu (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
瓦井久勝 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
KURIKI, Hironori (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
栗木宏徳 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
RYODEN KOKI ENGINEERING CO.,LTD. (1-14, Yada-Minami 5-chome Higashi-ku, Nagoya-sh, Aichi 48, 〒4610048, JP)
菱電工機エンジニアリング株式会社 (〒48 愛知県名古屋市東区矢田南五丁目１番１４号 Aichi, 〒4610048, JP)
KAWARAI, Hisakatsu (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
瓦井久勝 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
KURIKI, Hironori (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
栗木宏徳 (〒10 東京都千代田区丸の内二丁目７番３号三菱電機株式会社内 Tokyo, 〒1008310, JP)
International Classes:
B23H7/36
Attorney, Agent or Firm:
TAKAHASHI, Shogo et al. (7-3Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
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