Helix Wire

What Are Cast and Helix in Wire Manufacturing?

www.betasteel.com

7. Poor cast or excessive helix can cause unexpected behavior in tensioned applications, potentially leading to wire breakage. 8. Ease of handling: A wire with an appropriate cast and minimal helix is easier for the machine operator to work with. At Beta Steel, we test and control cast and helix to meet specific customer requirements, ensuring that the wire we produce performs optimally in high production conditions. Wire with appropriate cast and helix is easier to handle, pays off simply from spools, and can easily be fed through machinery. 2. Straightness in finished products: Excessive cast or helix can make it difficult to create straight wire products or can cause alignment issues in assemblies. Controlling cast and helix is a necessity in wire production and it is achieved by adjusting tension control during the drawing process. 3. Cast is a result of the wire's "memory" of being wound around a spool or drum during production. It is important to ensure proper spooling and to minimize kinks or deformation. 4. Helix refers to the spiral or corkscrew-like shape that wire may form when extended.

US4803309A - Electrical cable with open helix screen wires ...

patents.google.com

The cable core is then collected onto bobbins and transferred to an extrusion line, for the purpose of the application of the protective sheaths and of other extruded layers. This process requires machinery which has a rotating cage which, besides being complex and costly, also requires halting of the production line whenever the bobbins containing wires and/or copper tapes, are about to run out. A later improvement for these type of cables was had with cables where the wires are wound around the core according to a helix which is periodically reversed in hand, known as an open helix, or S-Z helix. Since the wires 10a are subjected to the alternating rotary motion of the guide 30, they are laid on the core 2 (over the connecting wire 12) according to an open helix configuration. The thus formed screen of metallic wires 10a is immediately embedded by the elastomeric or plastomeric material extruded through the canal 40 in such a way that the wires are fixed in their desired positions in a permanent manner, through the solidification of the plastomeric material. ... An electrical cable with a core comprising an electrical conductor surrounded by insulation and with both a screen of wires in open helix configuration on the core and at least one other wire extending longitudinally of the core and electrically contacting the wires of the screen. Therefore, even when manufacturing this type of cable, there are also present rotating devices for binding with metallic tapes, and consequently, it becomes necessary to halt the production line for substituting a new bobbin of tape for the bobbin tape which has run out. Moreover, with this process it is difficult to guarantee an even and constant spacing between the wires as required by the safety standards for this type of screen. In fact, in particular, the wires tend to become closer spaced, in correspondence to the helix reversals, during the construction of the screen, and other local wire shiftings can take place as a result of bends in the cable during the collecting and laying operations. the metallic wires are wound helicoidally around the cable core by means of rotating bobbins which are disposed along the production line, and the electrical continuity of the screen is assured by copper tapes. the cable core is then collected onto bobbins and transferred to an extrusion line, for the purpose of the application of the protective sheaths and of other extruded layers.

Aluminum Workshop: What is cast and helix?

www.thefabricator.com

If you lay the wires on the floor, helix is the height of the end of the wire off the floor. Again, this method is easy and accurate enough in almost any application. Wire manufacturers measure cast in a slightly different way: They slide the loops of wire over a horizontal rod and measure the diameter of the loops. However, the first method is easier and accurate enough for our purposes. In the method of measuring cast that involves sliding over a horizontal rod, helix is the distance along the rod between one wrap and the next. If your wire comes off the spool in a big corkscrew, you have an example of extremely large helix. Don’t use it. At best, the tip of the wire will wander all over as it comes out of the GMAW gun. At worst, it will cause feeding difficulties. In semiautomatic welding, this makes your job difficult because you’ll be moving the torch constantly to compensate for the wire movement. Because 1-lb. spools almost always are fed through spool guns, this still gives acceptable feedability because the wire is being fed only a short distance. However, the last few turns of wire on the spool often won’t feed well, especially if it’s a stiff wire like 3/64-in. 5356. In any case, the helix should still be less than 1 in., even on these small spools.

GKDMETALFABRICS | Helix 24 decorative flexible architectural wire mesh

www.gkdmetalfabrics.com

Helix features a spiraling flat wire hinged around a crimped connector wire allowing for flexibility in the length direction. The Helix series varies in wire diameter and mesh opening. Rigid - Woven of solid wires in both the warp and weft directions for a stiff fabric in all directions. Flexible ... Applications: Ceilings, Enclosures, Facades, Interior Partitions, Mesh Partitions, Parking, Partitions, Railing, Safety & Security, Solar Control, Steelweave View more Attachment Solutions: Woven-In-Bar with Hook Brackets & Springs, Woven-In-Bar Hook Brackets & Eyebolts, Woven-In-Bar with Eyebolts Top & Bottom, StealthLok, Woven-In-Flat-Bar with Clevises, Flat & Angle Frame, Flats with Flat Eyes, Flats with Clevis, Flat and Angle with Threaded Rod, Eyehooks, Eyebolts

3-25 WHAT ARE CAST AND HELIX FILLER METAL QUESTIONS & ANSWERS

executivefillermetals.com

Since welding wires are mechanically formed or drawn, they naturally retain some springback, which is defined by · their cast and helix, critical physical characteristics that affect wire feedability, arc stability, and overall weld quality. What is the importance of cast and helix as it pertains to filler metals? ... Cast refers to the natural curvature of the welding wire when a section is cut and laid flat on a surface. If the wire does not lay completely · flat but instead has a spiral effect, it has a higher helix. When the wire follows a predictable path, voltage and amperage remain steady, which helps maintain · arc stability. The American Welding Society (AWS) specifies tolerances for both cast and helix in its standards for

ISW - Wire Terminology Glossary

industeel.com

The last word on wire terminology Wire Terminology Glossary This listing includes many useful definitions of wire terminology that various industries may encounter. This glossary was developed by Industrial Steel and Wire. If you would like a hard copy of this wire terminology glossary, you can download It is an effective way of producing large continuous coils or stacking mill coils for storage and transportation. Cast The cast is the shape or configuration of one or two turns, or convolutions, of wire taken from a coil. “Bad cast” probably means that the wire is wild or has a bad helix (spiral), or the diameter of the cast is too small or, in some cases, too large. However, bad cast does not necessarily mean bad helix and visa versa. The terms are often confused (see Helix). Coils Referred to as “mill coils” or in England as “catch weight coils.” This is an inexact weight of wire as opposed to exact weight coils. There is a good chance that a different heat number was made at a different time and the wire characteristics may differ. Helix Often checked by laying a couple of convolutions on the ground and measured by the “lift.” Helix is a measurement of how high the end of the wire lifts off the ground or flat surface.