Yixing Liangjiu Ceramics Co., Ltd.
Yixing LJ Ceramics Co., Ltd.
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Ceramic Automatic Welding Liner With Ceramic Backing Tape
During the welding process, the welding ceramic backing is placed on the back of the weld joint to support the molten pool. Through its stable structure and material properties, the welding ceramic backing can withstand high temperatures during welding and maintain dimensional stability without deformation or damage due to high temperatures. The molten pool metal melts and flows at high temperatures, and the welding ceramic backing provides a stable support surface to prevent the molten pool metal from flowing out and ensure the good formation of the weld root. The high temperature stability and low thermal expansion coefficient of the welding ceramic backing enable it to effectively prevent deformation and defects at the weld root during welding. In addition, the chemical stability of the welding ceramic backing also ensures the purity and high quality of the weld. It does not chemically react with the molten pool metal, avoids the generation of impurities and defects in the weld, and thus improves the overall quality and reliability of the weld. The design and application of the welding ceramic backing makes the welding process more stable and controllable, and improves the success rate and consistency of welding.
| Ceramic material performance index | |||||
| Alumina Ceramic | Zirconia Ceramic | ||||
| Performance | Unit | ≧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 | 10^14 | 10^14 | 10^14 |
| Disruptive strength | KV/mm , DC≥ | 20 | 20 | 20 | 20 |
| Acid resistance | mg/cm2 ≤ | 0.7 | 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 |
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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.
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.