Today, Johnley Factory is sharing the development history of amino thermosetting plastics.  Amino-based thermosetting plastics, also known as amino resins, are a class of versatile synthetic materials widely used in industries such as automotive, construction, electrical, and consumer goods. This article aims to provide an overview of the development history of amino-based thermosetting plastics, tracing their origins, milestones, and current advancements. Through this exploration, we can gain a deeper understanding of their significance and impact on various applications. 1. Early Beginnings The development of amino-based thermosetting plastics can be traced back to the early 20th century. In 1907, an American chemist named Leo Hendrik Baekeland synthesized the first commercially successful thermosetting plastic, known as Bakelite. Although Bakelite was not an amino-based resin, it laid the foundation for the subsequent advancements in the field. Its success prompted further research into the synthesis of novel thermosetting materials with enhanced properties. 2. Formaldehyde-Urea Resins In the 1930s, further progress was made with the development of amino plastics using formaldehyde and urea as key components. The formaldehyde-urea resins were widely adopted due to their excellent mechanical strength, good electrical insulation properties, and resistance to heat and chemicals. This breakthrough led to applications in molded components, adhesives, and coatings, revolutionizing various industries. 3. Melamine Resins The 1940s witnessed another significant milestone in the development of amino-based thermosetting plastics with the discovery of melamine-formaldehyde resins. Melamine resins provided even higher heat resistance, durability, and dimensional stability compared to urea-based resins. These properties made them particularly suitable for high-temperature applications, such as laminates for countertops, tableware, and electrical insulation. 4. Advancements in Crosslinking Agents In subsequent decades, researchers focused on improving the properties of amino-based thermosetting plastics by exploring new crosslinking agents. Glyoxal, acetaldehyde, and other compounds were examined for their ability to enhance the performance of amino resins. These developments led to the production of resins with even better moisture resistance, improved hardness, and enhanced adhesion, expanding their potential applications. 5. Formaldehyde-Free Amino Resins The environmental concerns associated with formaldehyde, a key component in amino-based resins, prompted the development of formaldehyde-free alternatives. Researchers explored various substitutes, such as glyoxal or cyclic carbonates, to overcome the challenges of toxicity and volatile organic compound emissions. Formaldehyde-free amino resins became an important milestone in the industry, enabling the production of sustainable and eco-friendly products. 6. Current Advancements and Applications In ...

Johnley Factory is the manufacturer of equipment for melamine glazing powder. You can purchase the machines for producing melamine glazing powder from our factory. Glazing powder is a resin produced by the reaction of melamine and formaldehyde, which is further processed. During the processing of the synthetic resin, it is necessary to first age the reactants in the material box to obtain solid substances, and then crush and dry the cured material. Finally, it is milled into the required glazing powder.   The Glazing Powder Slicing Machine consists of a spindle support and a mainframe. The two ends of the spindle are connected to the spindle support and the mainframe through bearing seats respectively. The right end of the spindle is connected to the motor via belt drive. The motor is installed at the lower end of the mainframe. The left end of the spindle is fitted with a slicing disc, and an outlet hood is fitted outside the slicing disc. The lower part of the outlet hood has an opening. The upper part of the mainframe is connected to a material tray and a cylinder. The left end of the cylinder is connected to a pushing plate, which is wedged between the side baffles of the material tray. The left end of the material tray is connected to the outlet hood. With the Glazing Powder Slicing Machine, the process of slicing glazing powder becomes efficient which greatly enhances overall productivity.

Ball mills are crucial equipment for crushing and grinding materials and are widely used in industrial production as highly efficient and fine-grinding machinery. Various Types of Ball Mills: There are several types of ball mills available, including tube ball mills, rod ball mills, cement ball mills, ultra-fine laminating mills, hand ball mills, horizontal ball mills, ball mill bearings, energy-saving ball mills, gangue flow ball mills, ceramic ball mills, and grid ball mills.   Applications: Ball mills are suitable for grinding and pulverizing various ores and materials, making them widely used in industries such as mining, building materials, and chemical engineering. Components of a Ball Mill: A ball mill consists of a cylinder, a hollow shaft for material feeding and discharging, and grinding heads. The cylinder is a long cylindrical body that contains the grinding media. It is made of steel plates, and steel liners are fixed on the cylinder to enhance durability. Grinding Media The grinding media in a ball mill are typically steel balls of different diameters, loaded into the cylinder in specific proportions. The grinding media can also be made of steel bars, depending on the application.   Working Principle of Ball Mill 1. Depending on the particle size of the grinding material, the material is loaded into the cylinder through the hollow shaft at the feed end of the ball mill. 2. As the cylinder of the ball mill rotates, the grinding media adheres to the inner liner of the cylinder due to inertia, centrifugal force, and friction. 3. When the grinding media reaches a certain height while being carried by the rotating cylinder, they are ejected by their own gravity, acting like projectiles that crush the materials inside the cylinder. 4. The materials are uniformly fed into the first chamber of the mill through the hollow shaft, following a spiral path. 5. The chamber is equipped with stepped or corrugated liners, which are embedded with steel balls of various specifications. 6. The rotation of the cylinder generates centrifugal force, causing the steel balls to fall and exert significant impact and grinding effects on the materials. 7. After coarse grinding in the first chamber, the materials pass through a single-layer partition and enter the second chamber, where they undergo further grinding with smooth liners and steel balls. 8. The powdered materials are discharged through a discharge grate, indicating the completion of the grinding operation. As a critical equipment for material pulverization, ball mills play an essential role in various industries. Understanding the working principle of ball mills provides valuable insight into their applications and functionalities, allowing for effective utilization in industrial production processes. At Johnley Factory, we provide high-quality ball mills designed to meet diverse grinding requirements efficiently and reliably.  

Dear valued customers, We would like to express our sincere appreciation for your continued trust and support of Johnley Factory. As we approach the 2023 Mid-Autumn Day and National Day Holiday, we would like to inform you about our holiday arrangements. 1. Holiday Period: September 29th (Friday) to October 6th (Friday), 2023, totaling 8 days. 2. Back to Work: October 7th (Saturday) and October 8th (Sunday). May this holiday season be filled with happiness and joy for all! Best regards,   Johnley Amino Plastics Machinery & Equipment Factory September 22nd, 2023

As an important molding material, urea-formaldehyde molding powder is widely used in various industries. Its high-quality production is inseparable from advanced production equipment. Johnley Factory will introduce to you the key equipment required for the production of urea-formaldehyde molding powder, including reactors, pulverizers, screening equipment and packaging machines, etc., and reveal how these equipment can efficiently achieve quality and reliability. 1. Reactor The reactor is one of the most critical equipment in the production process of urea-formaldehyde molding powder. It is usually made of stainless steel and has good chemical stability and high temperature resistance. 2. Crusher The pulverizer is the key equipment for pulverizing the synthesized urea-formaldehyde resin block into powder. Commonly used pulverizers include ball mills, grinders, and impact pulverizers. These devices grind urea-formaldehyde resin blocks to the desired particle size through mechanical movement and friction. 3. Screening equipment Sieving equipment is used to classify the pulverized urea-formaldehyde molding powder. Common screening equipment includes vibrating screens, centrifugal screens, and filtration equipment. These devices separate particles by size through sieves of different pore sizes. 4. Packing machine Packaging machine is a device for packaging and sealing urea-formaldehyde molding powder. Packaging machines need to have good control performance to accurately perform weighing, metering and packaging operations. At the same time, the packaging machine also needs to have the functions of moisture-proof, sealing and outer packaging to ensure that the quality of the product will not be affected during transportation and storage. In short, urea-formaldehyde molding powder production equipment plays a key role in ensuring product quality and reliability. The use of advanced reactors, pulverizers, screening equipment, packaging machines and other equipment can efficiently complete each production process to ensure uniform particle size distribution and stable quality of products.

Johnley Factory is the manufacturer of amino plastics production equipment. Amino molding plastics, a structurally complex and high-performance polymer material, possesses notable characteristics that include: 1. Excellent heat resistance, corrosion resistance, and wear resistance. 2. Exceptional mechanical strength and rigidity. 3. Good formability and processability.     Due to its remarkable properties, amino molding plastics have found extensive applications in various industries: 1. Automotive Industry: Amino molding plastics can be used in car exteriors, interiors, and mechanical components such as radiator grills, car frames, and battery covers. 2. Electronics Industry: Amino molding plastics are ideal for electronic product casings and internal structures like cellphone cases, display back panels, and capacitor housings. 3. Aerospace Industry: Amino molding plastics play a critical role in manufacturing aircraft components and gas turbine blades.   Currently, amino molding plastics have been widely adopted in the domestic market. However, the industry still faces several challenges in its development: 1. Technological Innovation: Continuous technological innovation is vital to improving product performance and reducing costs in the amino molding plastics industry. 2. Environmental Protection: With increasing environmental awareness, the industry needs to reduce pollutant emissions and promote the development of environmentally friendly products. 3. Market Competition: The amino molding plastics industry is highly competitive, necessitating constant improvements in competitiveness and market share. As the demand for high-performance materials grows, the future of amino molding plastics looks promising.  

Urea molding powder, widely used in the manufacturing of various plastic products, has become an integral part of numerous industries such as automotive, electrical, and consumer goods. The production process of urea molding powder involves several crucial steps, and one of the key components in this process is the kneader. In this article, Johnley Factory will explore the significance of kneaders and their role in the production of urea molding powder.   What is a kneader? A kneader is a specialized mixing machine that plays a vital role in the production of urea molding powder. It consists of a rotating shaft equipped with mixing blades. The machine operates by continuously and uniformly mixing the urea resin with other additives, such as fillers, plasticizers, and pigments, to create a homogeneous and well-dispersed mixture.   Key functions of kneaders in urea molding powder production: 1. Material Mixing and Dispersion: Kneaders are designed to efficiently mix the urea resin with various additives, ensuring that they are uniformly dispersed throughout the mixture. This process is crucial for achieving consistent product quality and properties. The kneading action of the blades helps break up any agglomerates and distribute the additives evenly, resulting in a homogeneous blend. 2. Temperature Control: During the kneading process, heat is generated due to the friction between the material and the mixing blades. Kneaders are designed to provide effective temperature control. By regulating the speed, direction, and temperature of the kneading process, the machine ensures that the urea resin and additives are adequately heated and cooled, preventing undesirable thermal degradation or agglomeration. 3. Chemical Reaction: In some cases, the kneading process itself triggers chemical reactions between the urea resin and certain additives. For instance, in melamine-formaldehyde systems, kneaders help facilitate the condensation reaction that transforms the resin into a cross-linked polymer. By providing the necessary mechanical energy and optimized reaction conditions, kneaders enable the desired chemical transformations to take place. 4. Efficient Processing and High Throughput: Kneaders are capable of handling large quantities of material, ensuring high production efficiency. With their robust construction and powerful mixing capabilities, kneaders minimize process time and maximize throughput. This makes them essential in meeting the demands of urea molding powder production on an industrial scale. Benefits of using kneaders in urea molding powder production: a. Improved Product Quality: Kneading ensures thorough mixing and dispersion of additives, leading to a homogeneous mixture. This results in consistent product quality, enhanced mechanical properties, and reduced defects. b. Time and Energy Savings: Kneaders offer fast and efficient processing, reducing production time and energy consumption. The optimized mixing action leads to shor...

Ball mills, as highly efficient grinding equipment, have been widely applied in industrial fields such as metallurgy and chemical engineering. Today, Johnley Factory brings you the knowledge about grinding balls for ball mills. In ball mills, steel balls are commonly used as grinding media, but they can easily cause over-grinding of materials and introduce iron impurities into the process, covering the surface of ores and increasing production costs.       Alumina ceramics possess excellent properties, including acid and alkali resistance as well as wear resistance, enabling their application in harsh conditions where many metals and non-metals fail. As a type of engineering ceramic, alumina ceramics are widely used in fine grinding equipment, such as ball mills and vertical stirred mills. The ball mill machine in Johnley Factory uses alumina ceramic balls. High alumina balls, also known as alumina ceramic balls, are made by rolling or pressing α-alumina powder and sintering it at a high temperature of 1600 degrees Celsius, resulting in wear-resistant ceramic products.     The characteristics of alumina ceramic balls are as follows: 1. High hardness: Alumina ceramics have a Mohs hardness of 9, which is only one level lower than that of diamond (with a Mohs hardness of 10). 2. Excellent wear resistance: Alumina ceramics have a slow consumption rate. 3. Corrosion resistance: Alumina is inert and does not react with acids or alkalis, avoiding corrosion in acidic conditions. 4. High strength and low fracture rate: Alumina ceramic balls have high strength and exhibit minimal deformity even after prolonged use. 5. High density: The density of high alumina balls is greater than 3.6g/cm3, which is half that of steel balls. This reduces over-grinding and equipment wear in fine grinding conditions, lowers equipment noise, and decreases energy consumption. 6. Non-toxic and harmless: The composition of high alumina balls complies with the restrictions of the EU ROHS directive. In conclusion, utilizing energy-saving alumina ceramic grinding balls in ball mills not only improves grinding efficiency but also reduces production costs and equipment wear.