Archive | Metalworking & Precision Manufacturing

Cleaning Carbon Deposit Swirls On Alumina Parts

Q. Our parts, made of 99.5% alumina, have carbon deposits that show up after our brazing process. We do not use a flux for our ceramic parts; we high-temp fire a moly/manganese painted paste onto the ceramic. The part is then sent out for nickel plating to prevent corrosion of the moly manganese metallization areas. The next step is our brazing.

We are not seeing any spots on the parts before brazing, but as we continue through 5 brazing cycles and braze in a hydrogen/Nitrogen furnace with the cusil braze rings, we see black spots forming that show up as high-carbon deposits with the SEM data…

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Posted in Citranox, Metalworking & Precision Manufacturing0 Comments

Cold Cleaning

Q: We are a large biotech and in an effort to go green with our cleaning, we are exploring cold cleaning (cleaning with cold water) using your detergents. A: Cold cleaning is a very reasonable approach for energy conservation, and in short, its effectiveness depends on the details of the application.

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Posted in Biotechnology, Cosmetic, Laboratory, Manual Lab Cleaning, Medical Device, Metalworking & Precision Manufacturing, Pharmaceutical0 Comments

Choosing Ideal Detergent for Cleaning Metal Parts

Q. We are currently writing a protocol for conducting a process validation activity for our cleaning procedures for metal parts after our machining manufacturing process. What are the differences between cleaning effectiveness of Alconox detergent for cleaning various metallic surfaces such as stainless steel, titanium and cobalt chrome? Also, does Alconox detergent effectiveness change based on contamination characteristics, surface geometry or any other factors?

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Posted in Alconox, Citranox, Metalworking & Precision Manufacturing0 Comments

One Detergent for Mold Release and Circuit Board Cleaning?

Q: What types of Alconox, Inc. detergent would I use to clean a mold release agent? As an aside, is there any chance I could use the same detergent to also clean copper traces off a printed circuit board?

A: Yes! You may indeed be able to use one detergent in both these cleaning applications. But it will only work if the copper is not in the form of an oxide. Here’s why.

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Posted in Alconox, Detergent 8, Detonox, Electronic, Metalworking & Precision Manufacturing0 Comments

Removing Cutting Oil, Linoleic Acid from Parts

Q: Some metalwork pieces have a residue of linoleic acid (traced back to the cutting oil) that remains after ultrasonic cleaning with Alconox® detergent. Will Alconox® will fully dissolve linoleic acid? Can you recommend a cleaning process to ensure complete removal of all linoleic acid residue from our parts?

A: Alconox® Powdered Precision Cleaner will not dissolve, but will emulsify, the linoleic acid on your machined parts. In order to get a linoleic-acid-free clean, increase

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Posted in Alconox, Detonox, Metalworking & Precision Manufacturing0 Comments

Degassing Ultrasonic Cleaning Solution

Q. How would we determine appropriate degassing time for solution with ultrasonic cleaner? We are cleaning with distilled water with Alconox® detergent.

A. Degassing time varies with amount of dissolved carbon dioxide, which can vary. In general…

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Posted in Alconox, Ask Alconox, Metalworking & Precision Manufacturing0 Comments

How Long for Residue Free Ultrasonic Cleaning?

Q. How to determine appropriate cleaning time to clean parts with ultrasonic cleaner?

A. Observations and cleaning trials are the best way to determine appropriate cleaning time. Many people use 10 minutes as a cleaning time. For difficult residues…

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Posted in Ask Alconox, Medical Device, Metalworking & Precision Manufacturing0 Comments

Choosing Temperature for Ultrasonic Parts Cleaning

Q. How to determine appropriate temperature to clean parts with ultrasonic cleaner?

A. In general, every 10 deg C you go up in temperature doubles the cleaning speed. The faster you want to clean the hotter you should get.

There is a theoretical optimal ultrasonic cavitation temperature at around 70 deg C depending on the exact concentration of detergent. Even though in theory cavitation…

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Posted in Ask Alconox, Laboratory, Manual Lab Cleaning, Medical Device, Metalworking & Precision Manufacturing0 Comments

Cleaning Zinc Plated Metal Parts

Q. We would like to verify compatibility of zinc plated metal parts with Alconox. A. Zinc plated metal parts can be cleaned with Alconox detergent. Depending on the metal and whether there is any defect in the zinc plate coating, you can get galvanic reactions between the zinc and the underlying metal because…

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Posted in Alconox, Ask Alconox, Metalworking & Precision Manufacturing0 Comments

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Cleaning Automotive Pressure Sensors

Q. We make automotive pressure transducers. These are Stainless Steel automotive pressure sensors with baked on carbon and combustion deposits. Do you have a detergent recommendation?

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Posted in Alcojet, Industry, Metalworking & Precision Manufacturing0 Comments