Product Details
1. Overview of Silicon Carbide Settle Plate
1.1 Definition and Formation
Silicon Carbide (SiC) settle plate, also known as SiC kiln setter board, is a high-performance refractory structural ceramic specially designed for continuous high-temperature industrial kilns. It serves as an advanced upgrade alternative to ordinary alumina plates, cordierite-mullite setters and clay refractory boards. The product is manufactured from high-purity silicon carbide powder through isostatic compaction and ultra-high temperature sintering above 2100°C, followed by precision surface grinding. The dense covalent-bonded crystal framework brings outstanding high-temperature stability. Raw SiC powder is refined, shaped into blanks and sintered under oxygen-isolated conditions. Finished blanks are processed into flat plates of customized sizes, grooves and holes to carry workpieces during firing cycles for ceramic production, powder metallurgy and electronic component sintering. High-purity silicon carbide raw materials are stably supplied from professional advanced ceramic production bases, suitable for mass customized OEM manufacturing.
1.2 Classification and Grade Standards
Based on sintering technology and service temperature, SiC settle plates are mainly divided into recrystallized SiC, pressureless sintered SiC and reaction-bonded SiC three mainstream grades.
Reaction-bonded SiC settle plate has balanced cost performance for medium-temperature firing environments below 1350°C; recrystallized SiC can withstand sustained temperature up to 1600°C and features excellent anti-oxidation performance for high-temperature roller kilns; pressureless sintered SiC achieves balanced strength and flatness, widely adopted in precision electronic material sintering production lines.
High-end precision SiC settle plates undergo fine surface grinding to guarantee stable flatness and dimensional consistency, complying with DIN ISO 2768-mK precision machining standards. Featuring ultra-low thermal expansion coefficient, excellent thermal shock resistance and long service life, customized SiC settle plates have become irreplaceable high-temperature load-bearing kiln fittings with expanding application scenarios in modern thermal processing manufacturing.
2. Core Characteristics of Silicon Carbide Settle Plate
2.1 Physical Structure Characteristics
All core physical advantages of SiC settle plates stem from dense silicon carbide crystal microstructure, with excellent thermal shock resistance and high-temperature creep resistance as its core highlights.
It owns high flexural strength and ultra-low thermal expansion, maintaining stable flatness under repeated rapid heating and cooling cycles without warpage, deformation or cracking. Its compact pore-free structure ensures uniform heat conduction across the whole plate surface, realizing consistent firing temperature distribution for loaded products and effectively reducing the reject rate caused by uneven heating.
The minor physical limitation is brittleness under severe violent impact, which can be effectively avoided by optimizing stacking mode and preventing rigid collision during loading and transportation.
High-purity sintered SiC material possesses reliable chemical inertness, resisting long-term erosion from glaze vapor, metal oxide volatile matter and high-temperature flue gas inside kilns. It will not react with most ceramic blanks, metal powder and electronic raw materials during high-temperature sintering, avoiding surface adhesion and mutual contamination between settle plate and workpieces. The material maintains stable chemical performance within the full temperature range from room temperature to 1600°C, without chemical deterioration after thousands of hot-cold circulation cycles.
Silicon carbide ceramic boasts outstanding comprehensive thermal performance, with maximum continuous service temperature reaching 1600°C. It features high thermal conductivity and low thermal expansion, greatly shortening kiln heating and cooling time, improving overall production efficiency. Reliable thermal shock resistance enables the plate to adapt to frequent temperature fluctuation in intermittent shuttle kilns and continuous roller kilns, becoming a stable load-bearing refractory material for various thermal processing equipment.
3. Advantages of Silicon Carbide Settle Plate
3.1 Stable Flatness & Uniform Heat Conduction
High thermal conductivity ensures consistent temperature distribution on the plate surface. Precision machined surface maintains excellent flatness after long-period high-temperature operation, preventing product tilting and deformation during firing. Compared with traditional mullite setters, it effectively improves finished product dimensional consistency.
3.2 Anti-Adhesion & Pollution-Free Sintering
Thanks to stable chemical inertness, SiC settle plate rarely reacts with firing raw materials. It avoids glaze sticking, blank adhesion and surface contamination problems frequently encountered by ordinary refractory plates, reducing cleaning workload and lowering production loss.
3.3 Long Service Life & Comprehensive Cost Saving
The material can withstand thousands of hot-cold cycles without cracking. Its service life is 5–15 times longer than cordierite-mullite setters, cutting frequent replacement frequency and kiln shutdown maintenance time. It effectively reduces long-term spare parts procurement cost for kiln production lines.
3.4 Full Customization for Diverse Kiln Equipment
We support customized length, width, thickness, positioning holes, avoiding grooves and special chamfers according to customer drawings. Custom surface anti-sticking treatment can be provided upon request, perfectly matching roller kilns, shuttle kilns and pusher kilns in different industries.
4. Industry-Specific Applications
- Ceramic manufacturing: Daily ceramics, structural ceramics and electronic ceramic sintering load-bearing plates
- Powder metallurgy: Metal powder blank high-temperature sintering carriers
- New energy materials: Lithium battery material, ceramic dielectric component firing supports
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Precision thermal treatment: High-temperature firing of magnetic materials and advanced inorganic materials
|
单位
UNIT
|
常压烧结碳化硅
SSIC
|
反应烧结碳化硅
RBSIC/SISIC
|
重结晶烧结碳化硅
RSIC
|
|
最高使用温度
Max temperature of Application
|
℃ |
1600 |
1380 |
1650 |
|
密度
Density
|
g/cm3 |
>3.1 |
>3.02 |
>2.6 |
|
气孔性
Open Porosity
|
% |
<0.1 |
<0.1 |
15% |
|
抗弯强度
Bending Strength
|
Mpa |
>400 |
250(20℃) |
90-100(20℃) |
|
Mpa |
|
280(1200℃) |
100-120(1100℃） |
|
弹性模量
Modulus of Elasticity
|
Gpa |
420 |
330(20℃) |
240 |
|
Gpa |
|
300(1200℃) |
|
|
热传导系数
Thermal Conductivity
|
W/m.k |
74 |
45(1200℃) |
24 |
|
热膨胀系数
Coefficient of Thermal Expansion
|
K-1x10-6 |
4.1 |
4.5 |
4.8 |
|
维式硬度
Vickers Hardness HV
|
Gpa |
22 |
20 |
|
|
耐酸碱度
Acid Alkaline-proof
|
|
优（excellent） |
优（excellent） |
优（excellent） |
Development History
Patents and certification
We’ve obtained various global certifications including CE, EMC, LVD, RoHS, FDA, MSDS, ISO 9001, SGS and TUV. We also own eight registered trademarks and forty technical patents to support independent R&D.
Our proprietary core technologies run through all product lines: porous ceramics, industrial ceramic components, special glass, metallized ceramics, liquid absorption cotton, ozone generators and silicone goods. All products are manufactured in strict accordance with international quality standards, delivering reliable and high-performance solutions that have gained wide recognition and market trust worldwide.
Package
We adopt scientific and standardized packaging solutions tailored to product characteristics to effectively prevent collision, extrusion, dust and moisture damage. With mature global transportation system and strict shipment inspection procedures, we ensure all products remain intact and stable during long-distance delivery, providing customers with safe, efficient and reliable one-stop logistics service.
Services
Inquiry & Customization
We provide fast and accurate quotation response for all your inquiries. Flexible OEM & ODM customization solutions are available to meet your unique product design, packaging and branding requirements.
Order Quality Control
We keep clients updated with full production progress throughout the whole order cycle. Our QC team carries out strict comprehensive pre-shipment inspection to guarantee all goods comply with your quality standards before delivery.
Customs Document Support
We prepare a full set of standard export documents including commercial invoice, packing list, certificate of origin and other certification papers, to ensure smooth global customs clearance for shipments to all destinations worldwide.
One-Stop Logistics
Multiple shipping methods including sea freight, air freight and express delivery are offered to match your schedule and budget. We supply real-time cargo tracking service so you can monitor shipment status anytime.
Flexible Payment
We support a wide range of secure international payment terms such as T/T, L/C, Western Union and other mainstream cross-border settlement methods to reduce your cross-border transaction risks.
After-Sales Support
Our professional after-sales team offers timely technical and business support all year round. We maintain steady long-term stable supply capacity to fully back up your continuous market sales and project demands.
FAQ
01
Question: Can you produce based on customers’ drawings or physical samples?
Answer: Absolutely yes. We accept technical drawings in all mainstream file formats as well as actual physical samples. Before formal production, our engineering team will provide a full professional DFM feasibility evaluation for your reference.
02
Question: How long is the production lead time for custom orders?
Answer: Sample lead time: 3–7 working days. Custom mold lead time: 5–10 working days (we will confirm the cycle separately with you for complex molds). Mass production lead time: 7–20 working days, depending on product structure complexity and order quantity.
03
Question: What’s your minimum order quantity for custom products?
Answer: We provide flexible MOQ solutions for all customized items. We will try our best to set a low minimum order volume to support your small-batch trial orders, meanwhile we can handle stable mass production to satisfy your long-term bulk demands.
04
Question: What customization services can you provide?
Answer: We support comprehensive one-stop customization, including product size, shape, appearance, precision tolerance, surface treatment, hole grooving, bending, cutting and adjustable high-temperature resistant parameters. Custom engraved LOGO and exclusive customized packaging are also available as extra personalized options upon request.
05
Question: Do you accept third-party inspection of finished products?
Answer: Yes, we fully cooperate with all mainstream authorized third-party testing institutions. Well-known organizations such as SGS, BV and other internationally recognized inspection bodies are all acceptable. We can supply complete official inspection reports and material certification documents as you require.
06
Question: Can you customize raw material options for products?
Answer: Sure. We can select and match appropriate raw materials according to your application scenarios, working conditions and performance requirements, including alumina, zirconia, quartz, silicone and other special engineering materials, and adjust related performance parameters to meet your usage standards.
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