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Product Managers at Aerco offering Design Support


Need one-to-one practical advice on interconnect solutions, cable & wire, thermal managment, solenoids, filters ,shield components or other components? Our product managers can save you time and effort with their expertise through our Design Support service from these leading manufacturers.

Call Aerco now on +44(0)1403 260206 

News

Curly Cords Untangled
18/04/2016 12:24:06 NewsCable News

We are all familiar with curly cords, but most of us never give them a second thought. Yet these babies have a backstory of their own that borders on alchemy. All solids have a “memory” of what shape they are supposed to be, and if deformed, their molecular structure will endeavour to return to the original shape. This memory can be changed or adapted by applying certain principles, and I will attempt to explain them here.

The molecules in an extruded thermoplastic insulated jacket will be connected to each other by so called bonds. When a force is applied, stretching these bonds, like elastic bands, they will pull themselves back together. In making a curly cord, we rearrange these bonds to suit our design. To do this, the cable is first warmed to make it more pliable, and then wrapped around a mandrel. The number of turns, and the diameter of the mandrel chosen will be defined by the requirements of the finished product. The tails, as specified, will be cut to the required length. The whole assembly will then be placed into a warming oven for a few hours, and cooked. This causes the bonds in the material to break down. Once removed, the assembly is allowed to cool gently, during which process new bonds will be formed at a molecular level, creating a new memory. This is one time when the thickness of a cable jacket is defined by a factor other than voltage. The more material we have, the stronger the memory will be.

There are limits. If we overstretch the cable, we will exceed the elastic limit, and cause the internal bonds to break, and the cable will not return to its original shape. Hence a stretch of 4:1 is usually stated as the norm. Some materials are better than others, polyurethane is usually the best.  The size of the mandrels and of the ovens employed are another limiting factor, 2.5m for the coil in its relaxed state is usually the norm, but this can be exceeded in exceptional circumstances by feed the assembly slowly through the oven, by hand, in one side and out through the other.

The important thing to remember here is that each cord has to be manufactured individually, with the relaxed length, the coil diameter, the number of turns, and the length of the tails being specified at the time of order. You cannot supply curly cable by the yard.

(by David Cairns)

To learn more cable and wire services and products at Aerco, please Contact us .

 

ADDA DC fan is ideal for wet conditions
18/04/2016 10:41:59 NewsADDA News

AQ1212HBThe ADDA AQ1212HB is a 12VDC waterproof fan stocked by Aerco that is environmentally protected to IP55 and ideally suited to applications where harsh environmental conditions occur.  Protected against direct and indirect spray of water, extended exposure to salt spray, salt fog and fine dust particles the AQ1212HB will be ideal for applications such as food processing and remote telecommunication equipment, portable instrumentation and other equipment used outdoors or in inclement conditions. 

Built in a 120 x 120mm frame size with a depth of only 25mm it is ideal for cooling in tight situations where space is at a premium and, despite the slim size, the contemporary design ensures an airflow of 40.2 litres/sec (85.2 CFM) and a precision ball bearing system provides an operating life of 50,000 hours at 25°C and 65% humidity.  The operating temperature range is -10°C to 85°C.

Contact us now for more information or for a RFQ

Ref: AE658

Alpha Wire Expands Coaxial Cable offering sizes down to 50 AWG
08/04/2016 10:33:06 NewsAlphaWire NewsCable News

New Micro Coax cable offered in smaller sizes to meet the growing need for signal transmission in confined spaces

Alpha Wire has expanded its Coaxial Cable product line to include Micro Coax sizes from 32 AWG to 50 AWG.  With the addition of Micro Coax, Alpha Wire now offers Coaxial cable products ranging from 10 AWG to 50 AWG.

The new Micro Coax cable line will be offered as standard constructions and are ideal for customers looking for signal transmission options, especially when designs offer limited space for cable routing.  “Alpha’s new 50 Ω Micro Coax line will provide customers with the ability to ensure signal integrity within the increasingly small confines that many designers are working with,” says Hillary Riden, Product Specialist at Alpha Wire. “With an operating temperature range of -70°C up to 200°C, the new micro coax line is ideal for everything from medical endoscopes to industrial inspection applications.” 

To learn more about the new Micro Coax product line, please Contact us .

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