Industry Information

In equipment such as metering pumps, plunger pumps, and reciprocating pumps, the plunger—despite being a small component—plays a critical role in sealing, wear resistance, operational stability, and service life. Traditional metal plungers have long been widely used due to their high strength, ease of machining, and relatively controllable costs. However, under demanding operating conditions—such as high-frequency reciprocation, prolonged friction, exposure to corrosive media, or requirements for high purity or electrical insulation—metal plungers may suffer from issues like wear, corrosion, surface scratching, and shortened maintenance intervals. In such scenarios, zirconia ceramic plungers have emerged as a compelling alternative. So, what exactly are the differences between zirconia ceramic plungers and metal plungers, and how should one choose the right option for pump and valve equipment?

In the golden month of September, the air is filled with the fragrance of sweet osmanthus; the full moon of Mid-Autumn heralds the approaching National Day. With these two joyous festivals arriving in succession, Dongguan Haikun and Shenzhen Haide organized a joint "Celebrating Mid-Autumn and National Day" banquet on the evening of September 23, 2026, bringing all employees together at the Changping Renjia Restaurant. It was an evening marked by reunion, laughter, honors, and heartfelt wishes. Setting aside their busy work schedules, everyone gathered around the tables to share a delicious meal and friendly conversation, soaking up the festive joy and the warmth of the Haide & Haikun family.

In mechanical equipment—such as pumps, valves, bushings, plungers, seal rings, and guides—friction pair components are subjected to prolonged sliding, compression, friction, and impact; consequently, material selection directly impacts both component service life and operational stability. Historically, cemented carbide was widely used for wear-resistant friction components due to its high hardness, high strength, and excellent wear resistance. However, with the advancement of sectors such as the chemical industry, precision machinery, semiconductors, new energy, and high-purity equipment, new operational demands have emerged. Requirements now extend beyond wear resistance to include corrosion resistance, low contamination levels, resistance to media erosion, and the ability to maintain stable performance over the long term. In this context, zirconia ceramics have increasingly become an alternative material for certain friction pair components. So, which is truly more wear-resistant: zirconia or cemented carbide? In reality, there is no absolute answer. The true comparison lies not in which material is harder, but in which is better suited to your specific operating conditions.

For precision ceramic processing enterprises, equipment forms the vital foundation of manufacturing capabilities. As customers demand higher standards for precision, efficiency, and delivery performance regarding ceramic components, Haide Precision Ceramics continues to ramp up investment in machinery. We have recently added a total of 14 new units—comprising six double-sided grinding and polishing machines and eight precision CNC machines—which are currently being installed. This expansion represents not merely an increase in the number of machines, but a significant upgrade to our precision ceramic processing capabilities.

In the selection of industrial ceramics, 95% alumina ceramics and 99% alumina ceramics are two very common materials. Many customers directly ask, "Is 99% alumina ceramics, with its higher purity, necessarily better than 95% alumina ceramics?" The answer isn't so simple. Both 95% and 99% alumina ceramics belong to the alumina ceramic family, but they differ in alumina content, formulation, and sintering process. Therefore, they differ in mechanical properties, insulation properties, thermal properties, corrosion resistance, dimensional stability, and cost. Truly professional selection doesn't simply pursue higher purity, but rather matches the product's operating temperature, mechanical load, electrical properties, corrosive environment, wear resistance requirements, and cost budget. So, what are the differences between 95% and 99% alumina ceramics? In what situations should 95% alumina ceramics be chosen? In what situations is 99% alumina ceramics more suitable?

Industrial ceramics possess excellent properties such as wear resistance, high temperature resistance, corrosion resistance, insulation, and high strength, and are widely used in industries such as semiconductors, new energy, machinery manufacturing, medical, chemical, and electronics. However, in actual procurement, many customers find that: why do some choose alumina, others zirconium oxide, and still others silicon nitride, aluminum nitride, or silicon carbide when choosing industrial ceramics? The truth is, industrial ceramics are not necessarily "the higher the performance, the better," but rather the material must be matched according to the actual working conditions.

In the fields of power electronics, automotive electronics, semiconductors, and high-end equipment, ceramic substrates not only need to possess excellent insulation and thermal conductivity, but also must withstand temperature changes, mechanical stress, and long-term reliability tests. Among many ceramic substrate materials, silicon nitride ceramic substrates, with their high strength, high toughness, good thermal conductivity, and excellent thermal shock resistance, are gradually becoming an important material for high-reliability power modules. Hot-pressed silicon nitride ceramic substrates, in particular, achieve a dense structure through high-temperature and high-pressure sintering, exhibiting significant advantages in mechanical properties and reliability. So, what are the advantages of hot-pressed silicon nitride ceramic substrates? What are their shortcomings? What applications are they suitable for?

Industrial ceramics, characterized by high hardness, high strength, wear resistance, and high temperature resistance, are widely used in semiconductors, machinery manufacturing, new energy, and medical devices. However, during the selection of ceramic materials, a question is often raised: "Since ceramics have such high compressive strength, does that mean they are necessarily impact resistant?" Actually, no. Compressive strength and impact resistance are two different performance concepts. High compressive strength does not mean the material is not prone to fracture under sudden impact. Understanding the difference is crucial for selecting the appropriate industrial ceramic material based on actual working conditions.