Evaporation boat--Silent dedication of the bright boat
Evaporation boat, also known as the evaporation crucible, for all the evaporation vessels collectively, is a kind of vacuum evaporation coating for the key components. This term is usually less contact, but with our daily life is closely related, bear an irreplaceable role.
First of all, in the packaging industry, our close contact with the food packaging in the aluminized bags, hot stamping aluminized polyester film and other products need to use the production of evaporation boat. Evaporation boat can accurately evaporate aluminum and other metals and deposited on the film, packaging materials for the unique luster and performance, to protect the freshness of the food, to enhance the quality of drugs, cosmetics.
Secondly, in the electronics industry, with the continuous upgrading of electronic equipment, smart phones, tablet PCs and other electronic products, screen coating, as well as capacitors metallization coating, all need to use high-quality evaporation boat.
Further, in the field of new energy, with the rapid development of new energy vehicles, power battery film coating and other areas of evaporation boat demand is gradually increasing. The power battery of new energy vehicles need to use high quality thin film coating to improve the performance and safety of the battery, and the evaporation boat is an important equipment to realize the thin film coating.
Finally, in the optical field, optical lens coating, optical device manufacturing, evaporation boat also has a wide range of applications.
Hexagonal Boron Nitride - The Secret Weapon for Producing High Quality Evaporation Boats
The development of evaporation boat is not overnight. 19th century, more graphite material is used to do evaporation boat, but it is easy to be eroded by aluminum liquid, the life is very short. Later research in graphite surface coating protective coatings such as: TiC, HfC, TaC, etc., used to increase the evaporation boat of aluminum corrosion resistance to aluminum liquid aluminum corrosion ability, its life to a few hours, the effect is less than expected, and in the use of pollution is serious, and the concept of green development does not accord with the basic elimination.
With the development of material science, it is found that h-BN is an ideal crucible material for most of the metal and glass melts (including aluminum liquid), which is not wetting or reacting and has good corrosion resistance. Considering also the electrical insulation and high thermal conductivity of h-BN material, a double crucible system with a graphite container was attempted outside the BN crucible in the vacuum vaporized aluminum solution. This scheme did not achieve the desired results because the molten aluminum overflowed the crucible inside and erosion occurred in contact with the graphite crucible, resulting in cracking and failure of the graphite crucible.
With the continuous progress of science and technology, the evaporation boat industry also continues to innovate, and researchers have explored better solutions - TiB2-BN, TiB2-BN-AlN complex phase conductive ceramic evaporation boat. Among them, TiB2 has a high melting point, high chemical stability, high hardness, good electrical conductivity and positive resistivity temperature coefficient heart; h-BN has a good electrical insulation, corrosion resistance to molten metal, excellent thermal shock resistance and good machinability; AlN has a good high insulation and thermal shock resistance, can be used to enhance the material's resistance to corrosion of molten aluminum.TiB2-BN and TiB2-BN-AlN complex-phase conductive ceramics have the advantages of related materials, with adjustable resistivity, electrical conductivity, thermal shock resistance, machinability, corrosion resistance, etc., in the metal evaporation and plating industry as an evaporation boat materials are widely used.
BN(CHINA) Technology - The Best Partner for Evaporation Boat Manufacturers
According to the report of the research organization, the global evaporation boat industry will grow at a CAGR of 3.6% from 2024 to 2029, and will reach $10.5 billion in 2029. The competition in the evaporation boat industry is relatively fierce, and domestic evaporation boat enterprises are constantly improving product quality and technology level, providing the market with high-quality and low-cost evaporation boat products, and the share in the domestic and international market is rising.
BN(CHINA) technology deep plowing production technology, with high quality and stable products, strong batch supply ability, significant cost advantage, for related enterprises to reduce costs and increase efficiency provides a strong boost.
We currently have four sizes of products available: PBN700 (purity ≥99.5%), PBN500 (purity >99%), PBN300 (purity >98%), PBN100 (purity >97%), which are available in crystalline particle size of 1-5μm and powder particle size D50 between 4μm-20μm. These four products have been successfully applied in boron nitride ceramics, cubic boron nitride synthesis, mold release agents, thermally conductive fillers, lubricants, high temperature coatings and other industries.
