Silicon Carbide Ceramic Block

Product Features

Exceptional Wear Resistance

The key reason our sic blocks stand out among numerous wear-resistant materials lies in their exceptional abrasion resistance. Their inherently high hardness endows them with formidable resistance to wear. In practical applications, when materials flow at high velocity within pipelines and continuously scour the inner walls, ordinary lining materials may quickly become worn away. Our silicon carbide blocks, however, leverage their high hardness to effectively withstand the scouring action of the materials.

We conducted tests on the ash conveying system at a thermal power plant. The conventional alloy pipes originally in use exhibited an astonishing wear rate of 5 cm³ after merely 2,000 hours of operation. This necessitated frequent replacements, not only increasing maintenance costs but also disrupting the plant's normal operations. Subsequently, the plant adopted our sic blocks pipes. After 8,000 hours of operation under identical conditions, wear was measured at just 2.1 cm³, significantly extending the equipment's service life.

Outstanding Chemical Stability

In the industrial production process, equipment often contacts with lots of corrosive chemicals, so, the requirement of chemical stability of industrial equipment is very high. Our sic blocks can meet the requirement.The corrosion resistance of silicon carbide is very strong. Silicon carbide is very stable and will not react with corrosive media, strong acid and alkali.

Oxidation resistance is also very strong. When the certain temperature is reached, the silica film will form on the surface of silicon carbide. The silica film has the feature of strong armour, which can prevent the oxygen from continuing to corrode the silicon carbide interior, and greatly improved stability of silicon carbide in high-temperature media. In high-temperature industrial kilns, silicon carbide ceramic blocks can be used at the high temperature of 1600°C. No matter how long time in 1600°C environment, sic blocks will not be damaged by oxidation.

Comprehensive Analysis of Production Processes

Uniaxial Sintering Process

Shandong Qishuai Wear Resistant Equipment Co., Ltd. uses uniaxial sintering method, silicon carbide ceramic blocks sintering process at atmospheric pressure, the principle is: heat the product. Put the shaped green bodies into certain temperature and atmosphere conditions, no need to apply external pressure. Green bodies to densified, volume-stable consolidated blocks with certain properties through the physicochemical process. The main driving force for this process is the reduction of free energy at the pore surface, and the densification is obtained by bonding powder particles.

Compared with other kinds of sintering process, isostatic sintering process has many advantages. Compared with hot-press sintering, isostatic sintering no need extra pressure-applying equipment, the investment and the complexity of the process are greatly reduced, simpler process and manufacturing cost reduction. So you will get good quality product at more reasonable price. Besides, isostatic sintering process can produce complicated shape silicon carbide ceramic blocks and meet the special requirements of various kinds of industrial equipment.

Rigorous Quality Control Measures

We fully recognise that quality is the lifeline of our products. Consequently, throughout the production process of silicon carbide ceramic blocks, we have established a stringent quality control system. From raw material selection to finished product inspection, every stage undergoes rigorous scrutiny to ensure we deliver products of the highest calibre.

Raw Material Screening: The purity of silicon carbide feedstock is subject to stringent requirements, necessitating a purity level exceeding 99% to ensure exceptional product performance. Concurrently, rigorous testing of the material's particle size distribution is conducted to guarantee compliance with production process specifications. We select reputable suppliers and subject each batch of raw material to chemical composition analysis and physical property testing. Only materials fully meeting the standards are permitted to enter the production phase.

Production Process Monitoring: In all manufacturing processes, any process parameters such as sintering temperature, holding time and cooling rate are controlled in real time. The sintering temperature must be controlled within ±5°C and the holding time deviation shall not be larger than ±10 minutes ensuring the same quality of the product. Any parameters which are not normal will be adjusted in time to avoid any quality problems. In addition, quality inspection stations are designed at critical quality control processes and semi-finished products are strictly quality inspected. The density inspection is also performed on the formed blanks, and any cracks or porosity will be observed under eyes.

Finished Product Inspection: Comprehensive performance testing is conducted on finished products, including hardness testing, density testing, thermal conductivity testing, flexural strength testing, fracture toughness testing, and corrosion resistance testing. Only products where all performance indicators fully comply with standards are permitted to leave the factory.

Packaging and dispatch

Frequently Asked Questions

Pricing: The price of silicon carbide ceramic blocks is affected by many factors, such as product specifications, composition, manufacturing process, and supply and demand relationship. We will give you the most appropriate price according to your demands.

In addition, we are going to offer you a competitive price, and you will get the best quality at a low price!

Salesman for more information about the price.

Delivery Schedule: The specific delivery time may be subject to adjustments depending on the order volume and manufacturing plan. Before the contract is bound, we will communicate the specific delivery time with you, and notify you of the progress of manufacturing at any time, so as to guarantee the delivery on time. If you have any special requirements, please contact us in advance. We will do our best to coordinate your schedule.

Installation Guidance: We offer professional installation guidance.

Instruction manual will be sent with the product, and you will install according to the instruction.

If necessary, we will dispatch the technical personnel to provide installation guidance at the installation site.

Bespoke manufacturing service: If you have special requirements for the dimensions, shape or performance characteristics, we will also offer you the customized manufacturing service. Please communicate your exact requirements to our sales staff, and we will communicate with the R&D and production staff to design and manufacture the product according to your requirements. We will send you the most suitable silicon carbide ceramic blocks according to your requirements.

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