R&D team

R&D Team


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.

Services

Provide professional 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

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.

Partner

Collaborative clients


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 products.

FAQ

Frequently Asked Questions


Q

How to choose suitable refractory materials for my kiln?


A

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.

Q

What key information is required when ordering refractory bricks?


A

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

Q

What special attention should be paid to the construction and baking of refractory bricks?


A

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 ℃

Q

How to choose the right refractory for my industry?


A

Based on the working condition temperature, corrosive medium (such as acid, alkali, or slag), and degree of mechanical wear, the selection is as follows: for high-temperature, strongly corrosive environments (such as glass furnaces), zirconia corundum brick and alumina hollow ball brick are preferred. High wear resistance requirements (such as in the cement kiln transition zone): silica molybdenum brick and silicon carbide brick are recommended. For lightweight and insulation needs (such as kiln insulation), choose alumina hollow ball bricks.

Q

What is the difference between silicon carbide bricks and corundum mullite bricks?


A

Silicon carbide brick: characterized by high hardness and excellent wear resistance, it is suitable for the wear layer of cement kiln preheaters and metal smelting furnaces. Corundum mullite brick: exhibits strong thermal shock resistance, making it suitable for environments with frequent cold and hot alternations, such as blast furnace hot stoves and ceramic furnaces.

Q

Can alumina hollow ball bricks be used for thermal insulation?


A

Yes! Its internal hollow structure can significantly reduce the thermal conductivity (≤0.5 W/m·K), making it ideal for high-temperature furnace insulation (e.g., glass melting furnace tops, cement kiln shells).

Q

What is the product's temperature limit?


A

Silicon carbide brick: 1600°C ~ 1700°C Zirconia corundum brick: 1700°C ~ 1800°C Alumina hollow ball brick: 1700°C (long-term use)

Q

How resistant is the product to slag?


A

Adding Cr2O3 (chrome corundum brick) or ZrO2 (zirconia corundum brick) can significantly improve the penetration resistance of steel slag and glass liquid, making it suitable for the iron and steel metallurgy and glass industries.

Q

Is it possible to customize the product size?


A

Support non-standard customization, including special-shaped bricks and adjustments to thickness or size. Working condition drawings or specific needs must be provided.

Q

In what building materials industries can silicon carbide bricks be used?


A

In high-wear areas such as cement kiln preheaters, grate coolers, and lime kiln combustion chambers, the lifespan of equipment can be extended by more than 30%.
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