In the realm of high - end low - alkali borosilicate glass kilns, ensuring stable operation at key positions is a formidable challenge. Traditional materials often fall short when it comes to meeting the stringent requirements of high temperatures, thermal shock, and chemical corrosion. This is where dense zirconium blocks come into play, emerging as the preferred choice for high - end glass kilns.
Dense zirconium blocks are characterized by a dense crystal structure. This structure gives them a series of outstanding properties. For instance, they can withstand extremely high temperatures. Tests have shown that dense zirconium blocks can maintain their structural integrity at temperatures up to 1700°C, far exceeding the requirements of most low - alkali borosilicate glass kilns. In comparison, traditional materials may start to deform or lose their strength at around 1300°C.
They also possess high mechanical strength. With a compressive strength of up to 600 MPa, dense zirconium blocks can bear heavy loads within the kiln, ensuring the stability of the kiln structure. Their excellent thermal shock stability is another key advantage. They can endure rapid temperature changes without cracking. In a thermal shock test, after 100 cycles of rapid heating from room temperature to 1000°C and then rapid cooling, the dense zirconium blocks showed no visible cracks, while traditional materials often cracked after just 20 - 30 cycles.
Chemically, dense zirconium blocks have extremely high chemical stability and excellent alkali - corrosion resistance. In an alkaline environment with a pH value of 12, dense zirconium blocks showed only 0.1% weight loss after 100 hours of immersion, while traditional materials had a weight loss of up to 5% under the same conditions.
In the kiln channel blocks, dense zirconium blocks play a crucial role. The channel is where the molten glass flows, and it is subject to high - temperature erosion and chemical corrosion. The high - temperature resistance and chemical stability of dense zirconium blocks ensure a smooth flow of molten glass and prevent contamination of the glass. A glass manufacturing company in Germany reported that after replacing traditional channel blocks with dense zirconium blocks, the service life of the channel increased from 1 year to 3 years, and the defect rate of the glass products decreased by 30%.
For the sleeve blocks, which are responsible for protecting the electrodes and other key components in the kiln, the excellent mechanical strength and thermal shock stability of dense zirconium blocks are essential. They can protect the internal components from damage caused by thermal stress and mechanical impact. A case in Japan showed that using dense zirconium sleeve blocks reduced the maintenance frequency of the kiln from once every 3 months to once every 6 months, significantly improving production efficiency.
By using dense zirconium blocks in key positions of the low - alkali borosilicate glass kiln, production efficiency can be greatly enhanced. The longer service life of the kiln reduces the frequency of kiln shutdowns for maintenance and replacement of parts. This means more continuous production time, increasing the annual output of glass products by up to 20% in some cases.
Moreover, the high chemical stability and corrosion resistance of dense zirconium blocks prevent the contamination of molten glass, ensuring the quality stability of glass products. The defect rate of glass products can be reduced by 20 - 30%, which is a significant improvement in the highly competitive glass market.
In conclusion, dense zirconium blocks offer a comprehensive solution for the challenges faced by high - end low - alkali borosilicate glass kilns. Their excellent material properties and application advantages in key kiln positions make them the ideal choice for upgrading kiln equipment. If you are considering upgrading your glass kiln to improve production efficiency and product quality, don't miss the opportunity to incorporate dense zirconium blocks into your procurement decision. Click here to learn more about how dense zirconium blocks can transform your glass production!
