Основная Информация.
Сертификация
RoHS, ISO9001
Индивидуальные
Индивидуальные
заявка
Металл обработка деталей машин, Металлическое покрытие машины
Транспортная Упаковка
Wooden Box or Carton
Характеристики
based on the drawing
Описание Товара
Thermal spray technology is a method that uses a heat source to heat the spraying material to a molten or semi-molten state and, at a certain speed, sprays it onto the pre-treated surface of the substrate to form a coating.
It is used to create a special working surface on the surface of common materials, providing functions such as corrosion resistance, wear resistance, high temperature resistance, oxidation resistance, thermal insulation, conductivity, and anti-microwave radiation.
Thermal spraying has advantages such as wide material applicability, lightweight equipment, flexible processes, minimal operating procedures, quick repair capabilities, strong adaptability, and controllable coating thickness. It is suitable for components of various substrate materials and can be used to prepare various protective and functional coatings on the surfaces of almost all solid materials. It has been widely applied in industries such as petrochemicals, aerospace, transportation, papermaking, and machinery.
Common ways of thermal spray:
1. Flame spraying technology: Flame spraying is a method that uses a flame spray gun to apply coatings or paints to the surface of a workpiece by heating. Flame spraying is advantageous for its convenient application, uniform coating, and energy savings. However, it suffers from drawbacks such as severe environmental pollution and poor working conditions.
2. Arc spraying technology: Arc spraying involves using two wires to serve as consumable electrodes. The arc generated at the ends of these wires melts the wire material, and compressed air is used to atomize the molten material at a certain rate, spraying it onto the surface of the substrate (part) to create a continuous coating.
3. Plasma spraying technology: This technique utilizes a direct current-driven plasma arc as the heat source to heat materials like ceramics, alloys, and metals to a molten or semi-molten state. The heated material is then high-speed sprayed onto the pre-treated surface of the workpiece, forming a durable surface layer.
4. HVOF spraying technology: Supersonic spraying involves feeding powder axially into a flame, allowing the sprayed particles to be heated to a molten or semi-molten state and accelerated. This results in high bonding strength and dense, high-quality coatings.
Plasma spraying is a type of thermal spray technology. In the plasma spraying process, metal or ceramic powder is melted in a plasma arc and then accelerated at high speed onto the workpiece to be sprayed. Through this method, non-permeable adhesive layers can be deposited on tools and various equipment components. When used in a spray gun, our electrodes must withstand
instantaneous plasma temperatures exceeding 12,000°C.
Plasma Spray Cathodes and Anodes
Our company specializes in the production of plasma spray cathodes and anodes (also known as plasma spray electrodes and nozzles, tungsten-copper cathodes, tungsten-copper anodes).
Structure of Plasma Spray Cathodes and Anodes
The plasma spray cathode is divided into two ends, with one end made of tungsten alloy and the other end made of copper alloy. The two ends are then seamlessly connected through back casting (NDB). Back casting is an integrated connection method that ensures a seamless weld interface, different from traditional brazing, which can result in a certain percentage of gaps. These gaps can lead to uneven heating, affecting heat conduction, and consequently impacting the final product's lifespan. Products produced through back casting exhibit fast and uniform heat dissipation, stable spray quality, and a longer overall lifespan compared to those produced through brazing.
Advantages of Plasma Spray Cathodes
1. Our company has been engaged in the production of pure tungsten and tungsten alloy materials for many years, providing us with a deep understanding of the material's structure and properties. Specifically for tungsten electrodes used in plasma spray applications, based on our extensive knowledge of the application, we have made significant improvements and treatments to enhance the material's structure, meeting the requirements of plasma spray for material quality. Through densification treatment of tungsten electrodes, a finer and more uniform grain structure is formed. With the modified tungsten alloy, hardness and density are relatively higher, resulting in quick arc initiation and excellent resistance to arc burning, leading to a longer lifespan.
2. The plasma spray cathodes and anodes employ a unique back casting technique, achieving a seamless fusion between tungsten and copper, with a bonding strength that can reach up to 127MPa, surpassing the traditional bonding strength of less than 100MPa. In comparison to traditional brazing, components produced through back casting exhibit higher bonding strength between tungsten and copper, a larger contact area, more uniform resistance, and superior heat dissipation capabilities. This results in anodes and cathodes with increased stability and a longer lifespan.
3. We manufacture tungsten electrodes with different materials (exhibiting good arc initiation performance and erosion resistance). Tailoring to the specific needs of our customers, we can provide a range of materials for customers to choose from, ensuring optimal performance based on their usage scenarios.
Material | Additive(wt.%) | Tungsten (wt.%) | Electron Work Function (eV) |
Pure Tungsten | - | 99.95 | 4.25 - 5.01 |
Tungsten Alloy | 2% | Allowance | 2.0 - 3.0 |
4. Based on research and analysis of plasma spray guns, our cathodes and anodes are designed to seamlessly adapt to original equipment manufacturer (OEM) plasma spray guns. During the replacement process, there is no need for additional adjustments to the spray parameters. We have a comprehensive product line, and our plasma spray consumables are widely compatible with spray guns from companies such as Metco, GTV, FST, AMT AG, Praxair, including models like F4, 9M, SG-100, among others.
5. We have produced various types of cathodes and anodes with extensive experience. We can undertake custom processing and production based on customer samples or drawings. Additionally, we offer semi-finished products with seamless tungsten-copper bonding for our customers.
Адрес:
Room 401-10, Golden Entrepreneurship Park (Incubation Building #5), No. 1389 Lei Feng Avenue, Jinshanqiao Street, Wangcheng District, Changsha, Hunan, China
Тип Бизнеса:
Производитель/Завод
Диапазон Бизнеса:
Металлургия, Минерал и Энергия, Промышленное Оборудование и Компоненты
Сертификация Системы Менеджмента:
ISO 9001
Введение Компании:
Являясь предприятием, объединяя производство и торговлю, мы придерживаемся концепций инноваций, качества и обслуживания и стремимся предоставлять клиентам отличные огнеупорные металлопродукты и решения.
С момента своего создания мы хорошо осознавали важность технологических инноваций и постоянно инвестировали ресурсы в исследования и разработки. Это позволяет нам постоянно предлагать инновационные продукты, которые адаптируются к потребностям рынка и предоставляют клиентам индивидуальные решения. Мы с гордостью позиционируем себя как специалистов по производству огнеупорных металлов и прецизионной обработке, обеспечивая клиентам поддержку ценного материала в различных отраслях промышленности.
Мы специализируемся на производстве чистых вольфрамовых продуктов, чистых молибденовых продуктов, изделий из меди, вольфрама и изделий из вольфрамового тяжелого сплава.