Active Member
|
[China]
Address: 214200, QIANLUO,DINGSHU,YIXING,JIANGSU,CHINA
Contact name:Amy
Yixing Shengchen Refractory Products Co., Ltd |
|
|
Stud welding is a widely used manufacturing operation for connecting various components, support structures, assemblies, and composite construction. While there are many applications for various types of stud welding, drawn arc stud welding in particular is used for heavy-duty construction using studs with dimensions typically larger than ¼”. Arc welding studs also utilize a ceramic ferrule in the bonding process. This ferrule helps create a bond that is stronger than both the welding stud and the material being welded to. When you work with Northland Fastening Systems for all your drawn arc stud welding projects, you have access to all the high-quality studs, welding tools, and accessories you need.
Working with a ceramic ferrule to establish strong bonds using the drawn arc stud welding process requires specific tools and practices including a drawn arc gun and calibrated unit, drawn arc studs, ceramic ferrule sized correctly, and an adequate power source.
How it works: The ceramic ferrule works to surround and contain the welding stud during the weld. As the drawn arc current heats the tip of the stud and the metal becomes molten, the ring-shaped ferrule keeps the metal from spreading into a messy weld. The ceramic ferrule also protects the weld from exposure to oxygen in the air. Oxygen exposure can lead to porous or weakened welds. Additionally, the ferrule creates a protective barrier reducing UV exposure. Once the weld is complete, the ferrule is chipped away leaving a clean, perfectly formed weld.
Ceramic ferrules are required for drawn arc stud welding because the process is a longer weld time than other welds, the welding studs are typically thicker in diameter, and the weld will be required to hold greater weights than other welding formats.
Short cycle welding uses inert shielding gas instead of ceramic ferrules, and CD stud welding uses a different process entirely that doesn’t have the risk of molten metal spread. Instead, CD welding uses an exact combination of pressure and current frequency to heat the metal stud and bond it to the surface material.
If you’re working with drawn arc stud welding operations on your job site, Northland Fastening Systems can provide all the studs, accessories, and welding tools for rent or purchase you might need from the start of your project to the finish.
TYPE:RF Ceramic ferrule
TYPE:PF Ceramic ferrule
| Specfication | D7+0.5 | d8±1 | d9±1 | h2≈ |
| PF6 | 5.6 | 9.5 | 11.5 | 6.5 |
| PF8 | 7.4 | 11.5 | 15 | 6.5 |
| PF10 | 9.2 | 15 | 17.8 | 6.5 |
| PF12 | 11.1 | 16.5 | 20 | 9 |
| PF16 | 15.0 | 20 | 26 | 11 |
| PF20 | 18.6 | 30.7 | 33.8 | 10 |
| PF24 | 22.8 | 30.7 | 38.5 | 18.5 |
| Parameter of Ceramic Ferrule | ||
|---|---|---|
| No | Item | Value |
| 1 | Main Chemical Ingredient | 2MgO, 2Al2O3, 5SiO2 |
| 2 | Bulk Density | 2.5gm/cc |
| 3 | Max Using Temperature | 1000℃ |
| 4 | Water Absorption | 0.1% |
| 5 | Hardness | 800HV |
| 6 | Bending Strength | 900Kgf/cm2(20℃) |
| 7 | Compressive Strength | 3500Kgf/cm2(20℃) |
| 8 | Coefficient of Thermal Expansion | ≤2.0(1*10-6/℃) |
| 9 | Dielectric Constant | 6(1MHz 25℃) |
| 10 | Dielectric Strength | 10 ac-KV/mm(ac V/mil) |
| 11 | Volume Resistivity | ＞1012 ohm-cm(20℃) |
| 12 | Color | White, light yellow, etc |
| Welding technique | Type of stud | Symbol for studs | Symbol for ceramic ferrules |
| Drawn arc stud welding with ceramic ferrule or shielding gas | Threaded stud(pitch) | PD | PF |
| Threaded stud with reduced shaft | RD | RF | |
| Unthreaded stud | UD | UF | |
| Stud with internal thread | ID | UF | |
| Shear connector | SD | UF |
Q: Can I get some samples?
A: We are honored to offer you samples for quality test.
Q: Do you have certificate?
A: Yes, for basic series of welding and cutting products, we all
make corresponding certificates for different areas.
Q: Why choose you?
A: Advantages we have:
1. Experienced manufacturer;
2. Professional design team and sales department for your service;
