High Precision Ceramic Welding Backing Ceramic Tape For Welding Fcaw And Gmaw Welding Process
Ceramic Welding Backing For Fcaw And Gmaw Welding Process
Welding ceramic backing is an auxiliary material specially used in the welding process. It is mainly used to support the root of the weld. Welding is an indispensable technology in the manufacturing industry, especially in areas where high-strength and high-precision connections are required. In traditional welding processes, the forming quality of the weld root directly affects the overall performance of the welded structure. The application of welding ceramic backing can significantly improve the forming quality of the weld root. This ceramic material has high temperature stability and can withstand extremely high temperatures without deformation during the welding process. Due to its excellent thermal stability and low thermal expansion coefficient, welding ceramic backing can effectively prevent the loss of molten pool metal during the welding process and ensure the shape and size of the weld root are stable. In addition, the chemical stability of the welding ceramic backing prevents it from chemically reacting with the metal in the molten pool during the welding process, thus maintaining the purity and high quality of the weld.
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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
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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.
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A3: Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.
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A4: Of course, we provide free samples.
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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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