To provide clients with premium products and services
The company has a strong technical force, advanced equipment, and comprehensive experimental testing facilities
Ensure the quality of every detail
A professional manufacturer specializing in special refractories, integrating research, production, operations, and service
Integrity-based, quality first
Building win-win partnerships with global clients for mutual growth and shared excellence!
ABOUT US
Shiheng Refractories
Jiaozuo Shiheng Refractories Co., Ltd. is a professional manufacturer specializing in special refractories, offering integrated research, production, operation, and service. Since its inception, the company has continued to grow in strength with the strong support of various sectors and both new and old users. The company boasts a strong technical force, advanced equipment, comprehensive experimental testing facilities, and long-term cooperation with the Luoyang Refractory Research Institute, the Wuhan Metallurgical Construction Research Institute, and other research institutions. It continuously develops advanced high-tech products, improves product quality, and enhances application technology, all with the aim of providing clients with premium products.
Establishment
Registered Capital
Automated Production Equipment
Patents
High quality refractory products
Products
Supplier of special refractories
Continuously develop advanced high-tech products and enhance product quality and construction techniques to offer clients premium products.
FAQ
How to choose suitable refractory materials for my kiln?
It is necessary to comprehensively consider: working temperature, atmosphere (oxidation/reduction), properties of materials or slag in contact (acid/alkali), thermal shock frequency, mechanical stress (wear, impact), thermal conductivity or insulation requirements, etc. It would be best if you could provide us with specific working conditions for consultation.
What key information is required when ordering refractory bricks?
1. Brick size: It is best to have drawings or samples. 2. Material requirements: Clear material type or grade. 3. Requirements for physical and chemical indicators: such as Al ₂ O ∝, SiC, ZrO ₂ content, bulk density, room temperature compressive strength, load softening temperature, etc. 4. Operating conditions: furnace type, location, temperature, atmosphere, corrosive substances, etc. 5. Special requirements: such as dimensi
What special attention should be paid to the construction and baking of refractory bricks?
1. Construction: Strictly follow the design drawings for masonry, ensure the size of brick joints, and use corresponding refractory mortar; Pay attention to the reserved expansion joints. 2. Baking: Special baking curves must be followed, especially for bricks containing ZrO ₂ (such as AZS bricks), and the heating rate must be strictly controlled within the range of 900-1150 ℃
Silicon nitride bonded silicon carbide
Corundum brick
Zirconia brick
Chromia brick
Silicon carbide brick
Alumina hollow ball brick
Brown fused alumina composite brick
Application
Application areas
Products are widely used in the steel, non-ferrous metallurgy, cement, garbage incineration, hazardous waste treatment, lithium materials, dry quenching, chemical, and other industries.
Non-ferrous metal industry
Electric power industry
Glass industry
Chemical Industry
Ceramic industry
Steel industry
Services
Offer expert technical support and services
Careful selection of materials ensures good quality
The product materials have been carefully selected, ensuring higher quality
Complete specifications and models can be customized
The primary products of both shaped and unshaped refractories can be customized
Factory direct sales with fast delivery
Factory direct sales, no middleman price difference, ample inventory, prompt delivery
Large manufacturers offer worry-free after-sales service
A physical production base provides quality assurance with 24/7 service for you
One-stop manufacturing provider
Careful selection of materials ensures good quality
Sustainability
Sustainable development
Innovation, coordination, green, openness, and sharing
Our company has strong technical force, advanced equipment, and complete experimental and testing equipment. We have long-term cooperation with many scientific research units such as Luoyang Refractory Materials Research Institute and Wuhan Metallurgical Construction Research Institute, constantly developing new high-tech products, improving product quality and construction technology, aiming to provide customers with better product quality.
News Center
Blog
Headline News
What are the advantages of corundum bricks?
High: Anti-scouring, anti-corrosion, no brick falling; reduce the number of repairs and extend the service life.
2026-06-25 10:00
The Production Process of Silicon Nitride Bricks: Unveiling the Technological Forces Behind It
Silicon nitride bricks are primarily made from silicon nitride ceramic materials and are widely used in industrial applications that demand high temperatures and harsh operating conditions, such as aerospace, metallurgy, and the chemical industry. So, how are silicon nitride bricks manufactured? Let’s uncover the technological expertise behind the process. I. Raw Materials for Silicon Nitride Bricks Before delving into the production process, it’s essential to understand the raw materials involved. The main components of silicon nitride bricks are silicon and nitrogen; under high‑temperature conditions, these two elements react to form silicon nitride. Just as selecting the right ingredients is crucial for baking a delicious cake, choosing high‑quality raw materials ensures optimal performance. Similarly, leading manufacturers of silicon nitride bricks carefully select high‑purity silicon and nitrogen sources to guarantee consistent product quality. II. Basic Production Process So, what exactly is the manufacturing process for silicon nitride bricks? The entire procedure can be divided into several key steps: 1. Raw Material Preparation At this stage, manufacturers blend high‑purity silicon and nitrogen sources according to a precisely defined ratio. This ratio is akin to mixing a beverage—getting it just right is essential to achieve the desired outcome. 2. Pre‑treatment After blending, the raw materials undergo specific pre‑treatment processes, such as drying and grinding, to minimize moisture content and enhance uniformity.
15
2026/06
How can you identify a high-quality manufacturer of silicon nitride bricks?
In today’s era of rapid advancements in materials science, silicon nitride bricks have found widespread application in industrial production thanks to their outstanding high-temperature resistance and superior mechanical strength. However, with numerous manufacturers on the market offering products of varying quality, how can you select a reputable supplier? This article provides practical tips and advice to help you identify the most suitable partner among many options. 1. Understand the Properties of Silicon Nitride Bricks First, it’s essential to gain a basic understanding of silicon nitride bricks. Their key characteristics include a high melting point, exceptional strength, and excellent wear resistance. These attributes enable them to perform exceptionally well under extreme temperatures, making them ideal for use in industries such as metallurgy and chemical processing. By familiarizing yourself with these properties, you’ll be better equipped to assess whether a manufacturer’s products meet your specific requirements. 2. Verify the Manufacturer’s Credentials When choosing a silicon nitride brick supplier, a critical step is to thoroughly review their qualifications. A reliable manufacturer should hold the appropriate production licenses and quality certifications. Such credentials not only serve as evidence of the company’s credibility but also reflect the quality of its products. In addition, the manufacturer’s production equipment and technical expertise are crucial factors in evaluating its overall manufacturing capability. If a company boasts state-of-the-art machinery and a skilled technical team, then its…
04
2026/06
Practical Applications and Performance of Silicon Nitride Bricks in the Steel Industry
In the steel industry, as technology continues to advance, traditional refractory materials are increasingly unable to meet the demands of high‑temperature smelting. At this point, silicon nitride bricks, as a leading example of next‑generation refractories, have begun to attract widespread attention. So what exactly makes silicon nitride bricks so appealing? And how are they actually applied in the steel industry? Let’s explore these questions together. The fundamental characteristics of silicon nitride bricks: First and foremost, their primary constituent is silicon nitride, a material renowned for its exceptional high‑temperature performance and outstanding corrosion resistance. Imagine the extreme conditions of steelmaking—silicon nitride bricks act like valiant warriors, effectively resisting erosion from molten metal while maintaining excellent thermal stability. This significantly reduces the frequency of material replacements during smelting, thereby lowering operational costs. Compared with conventional refractory bricks, silicon nitride bricks exhibit markedly superior thermal shock resistance—much like an athlete who can maintain peak performance even under harsh conditions, without easily faltering. In steel production, temperature fluctuations are often severe; traditional materials may crack due to rapid thermal changes, whereas silicon nitride bricks demonstrate far greater robustness. Practical applications of silicon nitride bricks: In real‑world use, silicon nitride bricks are typically employed as furnace linings and in high‑temperature crucibles for steel smelting.
25
2026/05
The unique advantages of silicon nitride bricks: Why choose this refractory material?
The Unique Advantages of Silicon Nitride Bricks: Why Choose This Refractory Material? In industrial production, selecting the right refractory material is crucial for boosting productivity and ensuring equipment safety. Silicon nitride bricks, an emerging type of refractory, have gradually become a preferred choice across many manufacturing sectors thanks to their distinctive properties. So what exactly makes silicon nitride bricks so special? Let’s explore. Outstanding High-Temperature Performance First and foremost, the exceptional high-temperature resistance of silicon nitride bricks stands out as one of their key strengths. Even under extreme heat, these bricks maintain structural stability, with excellent resistance to deformation and cracking—qualities that enable them to perform reliably in demanding conditions. Imagine using conventional refractory bricks in a high‑temperature furnace: you might encounter cracking issues. In contrast, silicon nitride bricks can operate stably at temperatures as high as 1,400°C. This remarkable performance has led to their widespread use in industries such as metallurgy and ceramics, where sustained exposure to high heat is common. Superior Thermal Conductivity Beyond their ability to withstand high temperatures, silicon nitride bricks also boast impressive thermal conductivity. Compared with other refractories, they excel at transferring heat efficiently. As a result, furnaces lined with silicon nitride bricks can reach target temperatures more quickly, significantly enhancing production efficiency. Think about it: when you use high‑quality cookware in your kitchen…