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CORRELATION OF SURFACE CONTAMINATION INTRODUCED BY FEEDING EQUIPMENT ON ELECTRICAL CONTACT RESISTANCE

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CORRELATION OF SURFACE CONTAMINATION INTRODUCED BY FEEDING EQUIPMENT ON ELECTRICAL CONTACT RESISTANCE ABSTRACT  Contact degradation caused by austenitic stainless steel feeder bowls has raised concern among manufacturers of electrical contacts. The surface contamination of three contact materials fine silver, silver cadmium oxide (90%Ag 10%CdO) and a silver alloy (75%Ag 24.5%Cu 0.5%Ni) with 15 microinches (Ra)…

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THE EFFECT OF VARIOUS DEBURRING MEDIA CONTAINING MINERAL 

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THE EFFECT OF VARIOUS DEBURRING MEDIA CONTAINING MINERAL  SILICON (SiO2) OR ALUMINUM OXIDE (A1,0.) ON CONTACT PERFORMANCE  SUMMARY  Particle fragmentation and embedment of mineral silicon (SiO2) or aluminum oxide (A1,0,) introduced by deburring electrical contacts inhibit metallic conduction. The relationship between the concentration of mineral particles embedded on the rivet’s surface and contact performance was investigated.…

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Electrical Contact Failure Scenarios

Rivets Featured Image

Electrical contact or connection failure can spell disaster for your facility or appliance’s operations. Issues with these systems can cause costly damage to capital equipment, not to mention injury or loss of life. Maintaining well-functioning electrical contacts is an important element to ensuring the performance and safety of your electronic equipment and components. An electrical…

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Spot Welding vs. Projection Welding

Resistance Welding

The resistance welding process is commonly utilized in budget projects because it requires no additional materials outside of the metal that’s being joined. Fortunately, the cost-effective nature of the process doesn’t translate to a less reliable weld. While differing welding methods vary in cost, the appropriate method is largely chosen by what is best suitable…

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Differences Between Soldering & Furnace Brazing

furnace brazing

What’s the Difference Between Soldering and Furnace Brazing? Furnace brazing joins metals by melting a filler metal developing a metallurgical bond between substrates. This process works well in mass production applications because it produces strong joins without requiring a high degree of precision. It is also very flexible. The metallurgical bond developed between substrates has…

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Don’t get steered in the wrong direction

The advantages of in-house machine tooling at Norstan

Imagine if your automobile had rope steering, like an old-fashioned go kart. You could steer it, but not very accurately. Chances are, you’d be running into things and endangering other drivers. That’s what it’s like when you’re trying to work with an electrical contact supplier that has limited product knowledge. You’ll get to your destination…

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Materials and design for electrical contact longevity

Electrical contact design for longevity

Proper design and selection of materials can have a big impact on the longevity of your electrical contacts. Designing long-life contacts involves a number of important considerations and trade-offs, as well as iterative testing and sampling, to achieve an optimal performance for your electrical contacts. Keep these factors in mind when performance and reliability are…

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Switch designers: don’t leave electrical contact selection to chance

Electrical contact selection

When it comes to electrical contact selection for your switches, are you content to roll the dice? If so, you may be gambling with the reliability of your customers’ equipment. No one can afford to do that. There are many factors you need to consider when sourcing electrical contacts for switches. Many of them require…

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6 key factors you need to consider when selecting an electrical contact supplier

How to select an electrical contact supplier

When it comes to electricity, a strong connection makes everything go. Current flows unimpeded, like a superhighway of electrons, and your machine works efficiently. It’s no different when you’re selecting an electrical contact supplier. A partner with the right capabilities and qualities can energize your project and can result in a successful switch design. But…

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Common Failure Scenarios For Electrical Contacts

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Often, when a product or component fails, it’s because it wasn’t adequately designed for the environment or the application in which it was used. Think of the O-rings on the boosters of the Challenger Space Shuttle, which were never designed to survive a launch in cold weather. Or the Samsung Galaxy Note 7 smartphone, which…

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