Seam Welding Wheel
Yantai Wanlong Vacuum Metallurgy Co., Ltd. is one of the most reliable manufacturers and suppliers of seam welding wheel in China. With abundant experience, we are committed to providing high quality customized products for global clients. Welcome to buy bulk premium seam welding wheel from our factory.
Product Introduction
The seam welding wheel, also known as the roller electrode for seam welding machines, works on the core principle: a pair of rotating rollers compress the overlapped workpieces. While rolling, intermittent or continuous electric current is applied. Heat generated by contact resistance locally melts the metal to form overlapping nuggets, which eventually connect into a continuous and sealed weld seam
The whole process can be broken down into three steps
1.Pressurization:
The two roller electrodes clamp the workpiece and apply stable pressure to bring the overlapping surfaces into close contact.
2.Current application and heating:
The rotating rollers drive the workpiece forward. Meanwhile, welding current flows through the contact surfaces between rollers and workpieces. Joule heat generated by contact resistance locally melts the metal to form weld nuggets.
3.Cooling and crystallization:
After the current is cut off, the rollers keep pressing the metal that has moved out of the current zone to cool and solidify the nugget. As the rollers keep moving, each subsequent nugget forms overlapping the tail of the previous one, creating a continuous sealed weld seam with an overlap rate of over 30%.
Product Material Grade(reference value
|
ALLOY |
Chemical composition(%) |
||||||
|
Cu |
Cr |
Zr |
Fe |
Si |
Pb |
Ni |
|
|
C18150 |
Rem |
0.6–1.2 |
0.05–0.25 |
<0.10 |
<0.10 |
<0.05 |
- |
|
C18200 |
Rem |
0.8–1.2 |
- |
<0.10 |
<0.10 |
<0.05 |
- |
|
C15000 |
Rem |
- |
0.10–0.20 |
- |
- |
- |
- |
|
C18000 |
Rem |
0.1–0.8 |
- |
- |
0.4–0.7 |
- |
1.8–3.0 |
|
ALLOY |
Cu(+Ag) |
Fe |
Ni |
Co |
Be |
Si |
Al |
|
C17510 |
Rem |
0.10 Max |
1.4–2.2 |
0.30 Max |
0.2–0.6 |
0.20 Max |
0.20 Max |
|
ALLOY |
Mechanical Properties |
|
|
Hardness (HRB) |
Electrical Conductivity (% IACS) |
|
|
C18150 |
70–85 |
≥75 |
|
C18200 |
70–85 |
≥75 |
|
C15000 |
≥70 |
≥85 |
|
C18000 |
90–99 |
≥40 |
|
C17510 |
≥90 |
≥45 |
Product Performance
- Excellent electrical and thermal conductivity.
- High hardness and wear resistance.
- Superior mechanical properties at high temperature
- Stable welding forming.
- Anti-sticking performance.
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