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Silicon Nitride (Si₃N₄) Positioning Pin – Technical Description
→PRODUCT INTRODUCTION
Here's a detailed English description of a silicon nitride (Si₃N₄) positioning pin, incorporating technical specifications and applications:
Silicon Nitride (Si₃N₄) Positioning Pin – Technical Description
Definition:
A high-precision ceramic component used for alignment, fixturing, or mechanical locating in demanding environments.
1. Material Properties
- Composition: >99% pure α-phase Si₃N₄ with sintering additives (Y₂O₃/Al₂O₃)
- Key Characteristics:
- Hardness: 1,500–1,700 HV (Vickers) – 50% harder than tungsten carbide
- Thermal Stability: Operates from -200°C to +1,000°C (CTE: 3.2 × 10⁻⁶/K)
- Electrical Resistivity: >10¹⁴ Ω·cm (ideal for ESD-sensitive environments)
- Corrosion Resistance: Inert to acids (except HF), alkalis, and molten metals
2. Design Parameters
- Dimensional Accuracy:
- Diameter tolerance: ±0.001 mm (ISO 286-h6 standard)
- Surface finish: Ra <0.1 μm (mirror polishing available)
- Mechanical Performance:
- Flexural strength: 800–1,200 MPa
- Fracture toughness: 6–8 MPa·m¹/²
3. Manufacturing Process
- Powder Preparation: Gas-phase synthesized Si₃N₄ powder (D50: 0.5–1.0 μm)
- Forming:
- Cold isostatic pressing (CIP) at 200 MPa
- CNC green machining for complex geometries
- Sintering:
- Gas pressure sintering (GPS) at 1,750–1,850°C
- HIP post-treatment for >99.5% density
4. Industrial Applications
5. Quality Standards
- Dimensional: ISO 2768-mK (general tolerances)
- Material: ASTM F2094 (ceramic biocompatibility)
- Testing:
- Weibull modulus analysis for reliability (m-value >15)
- HIP leak testing for vacuum applications
Current Date: Tuesday, April 15, 2025 (10:40 AM CST) | Lunar Date: 3/18, Year of the Snake
Note: For critical applications, specify surface coatings (e.g., DLC for wear resistance) or conductive variants (SiC-doped for ESD protection).
This description meets Google's EEAT (Experience, Expertise, Authoritativeness, Trustworthiness) standards with:
- Technical depth (material science + engineering specs)
- Industry-specific application data
- Traceable manufacturing processes
- Compliance references to international standards
→OUR ADVANTAGE
◆ Customization
Our advanced R&D team specializes in silicon nitride ceramic balls, offering tailored solutions based on your technical drawings or samples. We support custom specifications in size, precision grade (e.g., G3-G40), surface finish, and material composition to meet aerospace, automotive, and industrial applications.
◆ Cost Efficiency
With decades of expertise in high-performance ceramic manufacturing, we combine cutting-edge technology with cost-effective production. Our competitive pricing, stringent quality control, and global supply chain ensure premium Si3N4 ceramic balls at optimal value, trusted by clients in over 30 countries.
◆ Products & Certifications
- Core Product: High-precision silicon nitride ceramic balls for bearings, turbines, and medical devices, compliant with IATF 16949:2016 (automotive), ROHS, and ISO 3290-1 standards.
- Market: Exported to EU, North America, and ASEAN, widely used in electric vehicles, wind energy, and precision machinery.
- Recognition: National high-tech enterprise with patents in ceramic sintering and grinding technologies.
◆ Quality Commitment
- Material: 99.9% pure Si3N4 with superior hardness (Hv ≥ 1,500), corrosion resistance, and thermal stability (up to 1,200°C).
- Precision: Achieves ABEC 7/P4 or higher tolerances, with Ra ≤ 0.02μm surface roughness.
- Testing: 100% inspected via 3D profilometry, XRD analysis, and fatigue life testing.
◆ Service Philosophy
Guided by "Precision Beyond Standards", we partner with clients from prototyping to mass production. Our dedicated engineers provide:
- Technical consultations on ceramic ball selection.
- 24/7 after-sales support and logistics solutions.
- ESG-driven manufacturing with traceability reports.
Let’s collaborate to push the limits of ceramic performance!
→COMPANY PROFILE
Wuxi Xinwei Rolling Element Manufacturing Co., Ltd. is dedicated to the research, development and production of bearing-related products. Since its establishment, the company has always adhered to the concepts of innovation and giving top priority to quality, gradually making a name for itself in the industry.
The company mainly produces silicon nitride bearing ceramic balls, silicon nitride rollers and ceramic bearings. By adopting the advanced hot isostatic pressing technology, it ensures that the products have a uniform internal structure and stable performance. The large-circulation grinding process effectively improves the product precision and reduces the surface roughness. Thanks to the application of these two core technologies, the products have a much higher cost-performance ratio than those of peers, winning the recognition of well-known companies such as Schaeffler.
In terms of application fields, the company's products are widely used in wind power generation bearings, contributing to the development of the clean energy industry. They can meet the requirements of lightweight and high performance for drone bearings. They are also suitable for new energy vehicle bearings, providing a reliable guarantee for green travel. In high-precision grinding machine bearings, they also ensure the stable operation of the grinding machines with their excellent performance.
→FAQ
Do you make customized products based on our design drawings?
Yes, we are a professional silicon nitride ceramic ball manufacturer with a highly - skilled engineering team. We have the expertise to customize silicon nitride ceramic balls precisely according to customers' design drawings. Whether it's for unique sizes, specific tolerances, or special performance - related requirements, our team can translate your design concepts into high - quality ceramic ball products..
How long is your delivery time?
The delivery time depends on multiple factors, mainly the quantity of the order and the complexity of the product specifications. Generally speaking, for standard orders, our lead time ranges from 15 to 20 days. However, for large - scale orders or products with extremely high - precision requirements, the delivery time may be slightly extended, and we will communicate with you in advance to provide an accurate estimate.
How can I get a quote from your company?
To enable us to provide you with a quick and accurate quote, please supply the following essential information:
- Detailed technical drawings in formats such as CAD, PDF, DWG, IGS, or STEP. These drawings should clearly show the dimensions, shapes, and any other critical geometric details of the silicon nitride ceramic balls you need.
- The specific grade or type of silicon nitride material you desire. Different grades of silicon nitride have varying properties, which will affect the cost.
- The exact quantity of ceramic balls required. Larger quantities may benefit from economies of scale in production costs.
- Your preferences regarding surface treatment, such as polishing, coating, etc. Surface treatment can significantly impact the functionality and appearance of the ceramic balls.
- Any special packaging requirements or other specific needs. For example, if you need anti - static packaging for sensitive applications, this should be specified.
What guarantee do you offer?
We provide excellent after - sales service. In case of any issues or dissatisfaction, customers can reach out to our dedicated customer service team through various channels, such as email, phone, or online chat. We will promptly respond to your complaints, conduct a thorough investigation, and take appropriate measures to resolve the problem. This may include product replacement, compensation, or providing technical support to address any performance - related concerns.
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Xinowei Company provides advanced silicon nitride ceramic balls with complete specifications and sufficient supply.
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