99.5 Ceramic Backing Strip Welding 300Mpa 350Mpa Ceraimc Welding Rod
Ceramic Welding Backing Tape /Ceraimc Welding Rod
Welding ceramic backing is made of high-temperature refractory materials, usually alumina or zirconia ceramics. These ceramic materials have extremely high temperature resistance and can withstand temperatures over 1500°C during welding without softening or deformation. In addition to high temperature resistance, welding ceramic backing also has good thermal stability and low thermal expansion coefficient, which enables it to maintain dimensional stability during welding and will not affect the quality of weld formation due to thermal expansion and contraction. The chemical stability of welding ceramic backing is also one of its important material properties. It does not chemically react with the molten pool metal produced during welding, thereby maintaining the purity and high quality of the weld. In addition, welding ceramic backing also has good mechanical strength and wear resistance, and can withstand certain mechanical stress and wear during welding, ensuring its long-term stability and reliability during use.
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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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Have questions about our products or want to discuss a custom order? Our team is ready to help you.