Alumina Ceramic Welding Backing Ceramic Welding Tape Self Adhesive Tape Strip
Alumina Ceramic Welding Ceramic Backing With Self-Adhesive Tape Strip
Welding ceramic backing is mainly used to provide stable support for the root of the weld during welding. During the welding process, the molten pool metal melts and flows at high temperature. If there is no proper support, the molten pool metal may flow away, resulting in poor forming or defects at the root of the weld. Welding ceramic backing is designed to prevent this from happening. It provides a stable support surface to ensure that the molten pool metal can remain in the correct position during welding. In addition, welding ceramic backing can also help achieve higher quality weld root forming and reduce the amount of finishing work after welding. The application of welding ceramic backing is particularly important in some high-precision and high-demand welding applications, such as pipeline welding, pressure vessel manufacturing and shipbuilding industries. These industries have extremely high requirements for the quality and reliability of welds, and welding ceramic backing can help ensure the smooth progress of the welding process and improve the quality of the final product.
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Ceramic material performance index
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Alumina Ceramic
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Zirconia Ceramic
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Performance
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Unit
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≧95 | ≧99 | ≧99.5 | |
| Bulk density | g /cm3 | 3.7 | 3.85 | 3.85 | 6 |
| Hardness | HRA ≥ | 86 | 88 | 88 | 92 |
| Flexure strength | Mpa≧ | 300 | 350 | 400 | 1100 |
| The max.temperature | ℃ | 1500 | 1500 | 1500 | 1450 |
| Linear expansion coefficient | ×10-6/℃ | 7.5 | 8.2 | 8.2 | 10.2 |
| Dielectric constant | εr20℃, 1MHz | 9 | 9.2 | 9.2 | 28 |
| Dielectric loss | tanδ×10-4, 1MHz | 3 | 2 | 2 | 10 |
| Volume resistivity | Ω·cm 20℃ |
10^13
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10^14 | 10^14 | 10^14 |
| Disruptive strength | KV/mm , DC≥ | 20 | 20 | 20 | 20 |
| Acid resistance | mg/cm2 ≤ |
0.7
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0.7 | 0.7 | 2 |
| Alkali resistance | mg/cm2 ≤ | 0.2 | 0.1 | 0.1 | 0.08 |
| Abrasive resistance | g/cm2 ≤ | 0.2 | 0.1 | 0.1 | 0.05 |
| Compressive strength | MPa ≥ | 2500 | 2500 | 2500 | 3000 |
| Rupture strength | MPa ≥ | 200 | 350 | 350 | 600 |
| Elasticity modulus | GPa | 300 | 350 | 350 | 210 |
| Poisson ratio | 0.2 | 0.22 | 0.22 | 0.23 | |
| Heat conductivity | W/m·K( 20℃) | 20 | 25 | 25 | 2.6 |
Applications
Packing and shipping
FAQ
Q1: Are you a manufacturer or a trader?
A1: We are a real manufacturer, our factory is specialized in producing refractory materials for more than 20 years. We promise to provide the best price, the best pre-sale and after-sale service.
Q2: How do you control your quality?
A2: For each production process, LJ has a complete QC system for chemical composition and physical properties. And we will test the goods, and the quality certificate will be shipped with the goods. If you have special requirements, we will try our best to accommodate them.
Q3: What is your delivery time?
A3: Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.
Q4: Do you provide free samples?
A4: Of course, we provide free samples.
Q5: Can we visit your company?
A5: Yes, of course, you are welcome to visit LJ company and our products.
Q6: What is the MOQ for trial order?
A6: There is no limit, we can provide the best suggestion and solution according to your situation.
Q7: Why choose us?
A7: We have been making refractory materials for more than 20 years, we have strong technical support and rich experience, we can help customers design different kilns and provide one-stop service.
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