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

What factors lead to low bulk density in hollow alumina balls?


A

Low hollow sphere filling rate: The density of alumina hollow sphere bricks mainly depends on the filling rate of hollow spheres. If the filling rate of hollow spheres is low due to production process or material problems, it will lead to low brick density.

Q

Analysis of the service life and cracking causes of alumina hollow ball bricks


A

Alumina hollow sphere bricks, as a high-performance refractory material, are widely used in high-temperature equipment and kilns in the metallurgical, chemical, and glass industries. However, during use, some users have reported cracking of the bricks after a period of time. So, how long will alumina hollow sphere bricks crack? In fact, cracking is not directly causally related to the length of use, but is the result of the combined action of multiple factors.

Q

Why do microcracks appear in corundum mullite bricks after firing?


A

Uneven sintering temperature: Uneven sintering temperature can lead to inconsistent thermal expansion and contraction during the sintering process, resulting in internal stress and ultimately the formation of microcracks.

Q

Solutions for SiC brick foaming


A

Sintering temperature and time are key factors affecting the quality of silicon carbide brick firing. When the temperature is too high or the sintering time is too long, the gas volume inside the brick blank will expand, resulting in foaming. Therefore, the foaming phenomenon can be reduced by lowering the sintering temperature and shortening the sintering time.
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