I Want a “Cheap” Cleaner

I hear a lot of prospects and customers looking for a "cheap" cleaner. To most people, "cheap" means a low price per unit. Consider these questions and statements when asking for or using a "cheap" cleaner: How effective is it? Perhaps a higher priced cleaner could clean at lower temperatures, shorter times, provide a better surface for coating adhesion, appearance, and corrosion protection. How much are you using? Perhaps a higher priced cleaner would reduce overall maintenance additions and rebuilding costs or perform at a lower, safer concentration. How much sludge is … [Read more...]

Dealing with Paraffinic Oil

Metal cleaning and fabricating experts often run into paraffinic material in oils and soil that find their way into our plating line. Often soak and electro cleaners cannot simply remove this type of soil. So it is easy to wonder why parts manufacturers would use this stuff, since it seems like such a problematic material from our point of view. Paraffinic oil can greatly reduce the friction and heat that comes with the forming and drawing of steel. This lowers the amount of wear and tear on the machines and die blocks, keeping the part manufacturer happy. Many types of mineral oils contain … [Read more...]

The Basics of Alkaline Cleaning in the Electroplating Industries

The most important phase of metal working, fabricating and finishing is cleaning.  Alkaline cleaning is the mainstay of industrial cleaning and may employ both physical and chemical actions.  Cleaners are many in number and vary in type and formulation.  Alkaline cleaners are specifically formulated (proprietary) chemical blends which consist of alkaline builder salts, surfactants, sequestering agents, emulsifiers and chelators .  Wetting agents, soaps and synthetic detergents, allow oil to be removed by displacing the oil from the surface of the part being cleaned by creating an emulsion win … [Read more...]

Spray Rinsing

In the industry of metal finishing all of the process steps and control parameters are critical. Naturally most of all of the process steps are scrutinized, tracked, and analyzed, however often times those process steps that may not seem as critical should be not be taken lightly.  One of these often over looked areas is rinsing and what constitutes good and efficient rinsing. The critical nature of rinsing can be measured in many ways such as component quality, process solution contamination or overall line process quality.  The metrics may vary from application to application. Naturally … [Read more...]

Winning the War on Filth Part 1

Frustrated yet? I know I am. Over the last few years I have seen an increased number of parts showing up on my clients plating lines with  more soils than ever before.  This list includes stamping and machining oils as well as lubricants, rp's, and coolants. The part that frustrates me is that the soils I am seeing day after day are typically not new synthetics or reformulated petroleum based products. Instead, these are the same products that have been used for years, but now are used in quantities far greater than needed. Since it appears nobody can protect our process lines from the … [Read more...]

Troubleshooting a Nickel Bath: Zinc Contamination

So it’s happened; someone accidentally added zinc anodes to the nickel bath. What can you do? Well, the easiest and most expensive option is to just dump the bath and make it up fresh. While this is a great way to ensure your sales representative remembers you come Christmas time, it won’t put you on your boss’ good side. Instead, you can opt to either dummy plate or complex the zinc metal out of solution. Dummy Plating Let’s take a look at dummy plating, and I’m not referring to when you have the new guy try to plate some parts. Dummy plating is a process by which we can remove unwanted … [Read more...]

What is a Procedure-Based Maintenance Organization?

When I was 19 years old I joined the Navy. I was assigned to work on submarines and spent much of my time in the service under water. Floating under the water in a hopefully airtight vessel will focus your mind on the importance of maintaining equipment. I was assigned to the Attack Submarine USS Snook (SSN-592).  During my time onboard I was forced to become familiar with the  “Submarine Safety” (SUBSAFE) program.  In fact , the Navy taught me a few things. First, I learned  the importance of  check lists. Second, I was introduced to the need for standard operating procedures. Finally, I was … [Read more...]

What is Clean? Part II

In Part I, we discussed “What is clean?” and the harmful effects of unclean. In Part II, we will describe a simple suggestion to determine cleanliness that does not require or demand (as in the case of cleanliness specifications dictated by some processes) expensive laboratory equipment, clean rooms, etc. Pay Attention to the Water Break Free Surface Generally, the first and simplest sign we look for in a “clean” surface is a “water break free” part emerging from the rinse steps after the soak and electrocleaner. A water break free surface should have a coating of water, adhering across the … [Read more...]

What Is Clean? Part I

One of the most common phrases I hear from metal finishing managers when referring to their pretreatment cycle and working with them in choosing a cleaner for their process is, “We need the part to be clean.” But what is clean? How do you define clean? Can parts be too clean?  From parts washing between assembly steps at large automotive manufacturers, to clean assembly rooms, to parts involved in paint and plating pretreatment, the word “clean” takes on several definitions and concepts. In this two-part article we will describe: Our definition of "clean" to meet the gambit of finishing … [Read more...]

Water and Your Plating Process

When it comes to cleaning and plating, there is one element which affects every single bath. This substance often makes up well over half of each tank, and we largely ignore it. That’s right, I’m talking about water. We put it in every bath, but pay no attention to what kind of water we have and what impact it will make. So let’s start at the beginning to understand how water effects the plating process.  Types of Water That’s right; there are multiple types of water. These can be summarized into Hard, Soft, and Purified. Hard water is characterized by a high mineral content. Oftentimes, … [Read more...]