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Alkali passivation of stainless steel
cause heating of the particles in the tube, whereby the particles are exposed to the microwave radiation in a controlled fashion to thereby sinter the particles. MnIIOD . . 'lllUnH" IUCIIIOUU PIA,... BA1II
U.S. Patent 5,858,073. Jan. 12, 1999 F. Hine and F. Matsui, assignors to C. Uyemura & Co. Ltd., Osaka, Japan
A method of treating an electroless plating bath containing hypophosphorous acid and/or a hypophosphite as a reducing agent comprising adding a water-soluble nickel salt to the electroless plating bath in which phosphite ions are accumulated to produce and precipitate nickel phosphite,
and separating the nickel phosphite from the plating bath; and adding sulfuric acid or a mixture of sulfuric acid and sodium sulfate to the nickel phosphite separated from the plating bath to convert the nickel phosphite into nickel sulfate and phosphorous acid or NaH 2 POa, and recovering the nickel sulfate. CAN COATING APPARATUS
U.S. Patent 5,858,098. Jan. 12, 1999 B.R. Boger and J.G. VandenEynden, assignors to Eagle-Picher Industries Inc., Cincinnati
A magnetic conveyor assembly for use in immersion coating of ferromagnetic cans in a coating bath wherein each can has an open top and a closed bottom.
ALKAU PASSIVATION . . STAINLUS S'IBL
U.S. Patent 5,858,118. Jan. 12, 1999 S. Shah and F. Kirchner, assignors to Calgon Vestal Inc" Mentor, Ohio
A method for removing residue from and passivating a chromium containing stainless steel surface comprising contacting with a composition between 15 and 50% of an alkaline component, said component being a hydroxide selected from the group consisting of potassium hydroxide and sodium hydroxide; between 1 and 15% of a chelant; and between 39 and 84% of water diluted to a concentration of 15 to 45 mIlL. ION IXCIIAIHII . . . CUAN_ MITIIOD
Global war,.q, And Proud of If.
That's right. Clepco has been providing Electric Immersion Heaters and Controls to platers globally since 1947. And we're forging into the next century with innovative products and superior quality. So, when you need to turn on the heat, turn to Clepco. 127 SW 5th Ave .. Homestead. FL 33030 tel (800) 241-0412; (305) 248·4312 fax (305) 248-4371 Visit us on the web at:
www.clepco.com
Circle 029 on reader Information card October 1999
Circle 068 on reader Information card
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U.S. Patent 5,858,073. Jan. 12, 1999 F. Hine and F. Matsui, assignors to C. Uyemura & Co. Ltd., Osaka, Japan
A method of treating an electroless plating bath containing hypophosphorous acid and/or a hypophosphite as a reducing agent comprising adding a water-soluble nickel salt to the electroless plating bath in which phosphite ions are accumulated to produce and precipitate nickel phosphite,
and separating the nickel phosphite from the plating bath; and adding sulfuric acid or a mixture of sulfuric acid and sodium sulfate to the nickel phosphite separated from the plating bath to convert the nickel phosphite into nickel sulfate and phosphorous acid or NaH 2 POa, and recovering the nickel sulfate. CAN COATING APPARATUS
U.S. Patent 5,858,098. Jan. 12, 1999 B.R. Boger and J.G. VandenEynden, assignors to Eagle-Picher Industries Inc., Cincinnati
A magnetic conveyor assembly for use in immersion coating of ferromagnetic cans in a coating bath wherein each can has an open top and a closed bottom.
ALKAU PASSIVATION . . STAINLUS S'IBL
U.S. Patent 5,858,118. Jan. 12, 1999 S. Shah and F. Kirchner, assignors to Calgon Vestal Inc" Mentor, Ohio
A method for removing residue from and passivating a chromium containing stainless steel surface comprising contacting with a composition between 15 and 50% of an alkaline component, said component being a hydroxide selected from the group consisting of potassium hydroxide and sodium hydroxide; between 1 and 15% of a chelant; and between 39 and 84% of water diluted to a concentration of 15 to 45 mIlL. ION IXCIIAIHII . . . CUAN_ MITIIOD
Global war,.q, And Proud of If.
That's right. Clepco has been providing Electric Immersion Heaters and Controls to platers globally since 1947. And we're forging into the next century with innovative products and superior quality. So, when you need to turn on the heat, turn to Clepco. 127 SW 5th Ave .. Homestead. FL 33030 tel (800) 241-0412; (305) 248·4312 fax (305) 248-4371 Visit us on the web at:
www.clepco.com
Circle 029 on reader Information card October 1999
Circle 068 on reader Information card
n