Contact tip, the hole shape: round, oval, triangle, square, etc., manufacturing materials are brass, copper, chromium zirconium copper, beryllium copper, commonly used specifications are 15ak, 24kd, 36kd, Panasonic and so on.
Contact tip is: welding equipment wearing parts, are welding supplies,
The tail part of the torch, the metal mouth of the wire, called the contact tip.
The hole is round, oval, triangular, square and so on.
Generally there are brass, copper, chrome zirconium copper, beryllium copper, manufacturing. Commonly used is copper Contact tip, chrome zirconium copper material is superior to copper, more durable.
Contact tip is classified by specification. Commonly used co2 gas welding machine with Contact tip, submerged arc welding tip, electrode.
Contact tip is vulnerable
1. Improper operation caused damage, torch closing arc, the instantaneous through the current is too high, Contact tip easy to melt, and welding wire together.
2.Contact tip quality issues, including (specifications, materials, workmanship, pore size and wire is appropriate, etc.). Our tips including: Binzel contact tip, Panasonic Contact Tip
, Tweco contact tip ,Fronius contact tip,Miller contact tip ,Tregaskiss contact tip, Esab contact tip, Bernard contact tip ,Cobramatic M.K contact tip, Lincoln Contact Tip
, Hobart contact tip ,M6*25 Tips ,M6*28 tips , M8*30 Tips , M6*40 tips ,M6*45 tips,OTC contat tip GMAW employs continuously fed wire, and to transmit current to this wire, the welding gun must make electrical contact with the wire. This electrical contact occurs through a contact tip that the wire feeds through.
The contact tip's size corresponds to the wire diameter. For example, a 0.035-inch contact tip corresponds to an 0.035-in. wire. However, this is not the only consideration. The contact tip size you choose also depends on the application. Industrial applications require large Contact Tips
, which have more mass and help to keep tip temperatures lower than small tips do.
Tapered and nontapered contact tips are available. Tapered tips typically are long and used with tapered nozzles in applications with restricted access and limited space, such as pipeline welding. Non-tapered tips have more mass in the front and tend to hold up to heat better and last longer.
Contact tips also come in threaded and nonthreaded varieties. Some styles of contact tips tend to seize the diffuser, making them difficult to remove and replace. Seizing is less likely to occur with nonthreaded contact tips. Nonthreaded designs typically have more area and conduct heat and electricity better than threaded contact tips, and often take less time to change after a burnback.
Threaded tips have traditionally been the most common-welders are accustomed to using them, and removal and installation is intuitive.
Because non-threaded contact tips do not require tools to change, they are quicker to replace after burnback. Some fabrication shops use tips that have just four settings, such as flush with the end of the nozzle, 1/8-inch recess, 1/4-in. recess, or 1/8 in. stick out. Fewer choices improve consistency among welders.
When contact tips start to wear, an oval hole can start to develop. This phenomenon, keyholing, can lead to irregularities in the arc from poor electrical pickup. Irregularities in the arc can increase spatter, which in turn leads to more postweld grinding. This is an inefficient use of a welder's labor-every additional minute of grinding time is one less minute of valuable production time.