[China Aluminum Industry Network] The color of aluminum powder is silver white, which is an odorless powder. Its processing methods are as follows:
Melt extrusion
This method is the heat extrusion of the metal pigment and the rest of the powder coating (resin, etc.) through a screw extruder.
2 dry stick method
The method is to add the dry powder of metal pigment into the crushed powder coating and mix it with a mechanical mixer. The advantage of the dry blending method is that the metal pigment and the powder coating are not very intense when mixed, thereby preventing the deformation of the sheet metal pigment and the metal effect is thus not affected.
3 bonding method Bonding-Process)
In this method, the metal pigment and the powder coating are dry-blended while being heated simultaneously so that the temperature just exceeds the softening point of the resin. At this point, the metal pigment can be fixedly bonded to the surface of the viscous resin powder, thereby preventing the powder from being applied and The phenomenon of separation of metal pigments and resin powders during recovery after construction is now the prevailing bonding method.
4ã€Air flow crushing
The method is based on the principle of supersonic jet crushing. Since the aluminum powder is easily oxidized, it is generally used JZDB series nitrogen protection air jet crusher and classifier for ultrafine aluminum powder production.
Piston Seals and Rod Seals are important seals used in mechanical equipment. Their main function is to prevent liquid and gas leaks and ensure the normal operation of mechanical equipment. Piston seals and rod seals are usually used in hydraulic and Pressure system, such as hydraulic cylinders and Pneumatic cylinder. The quality and performance of these seals directly affect the efficiency and lifespan of mechanical equipment.
The classification of piston seals and rod seals is mainly based on their material and design structure. According to the different materials, they can be divided into rubber seals, polyurethane seals, polytetrafluoroethylene seals, metal seals, etc. According to the different design structures, they can be divided into unidirectional seals, bidirectional seals, rotary seals, etc.
Rubber seals are a common type of seal, and their main material is rubber. Rubber seals have good sealing performance and wear resistance, and are suitable for medium and low pressure hydraulic systems and Pressure system. Polyurethane sealing element is a high-performance sealing element, and its main material is polyurethane. Polyurethane seals have high wear resistance, high temperature performance and high pressure performance, and are suitable for high-pressure hydraulic systems and Pressure system. PTFE sealing element is a corrosion-resistant sealing element, and its main material is PTFE. PTFE seals have excellent corrosion resistance and high temperature resistance, making them suitable for fields such as chemical and food processing. Metal seals are a type of high-temperature and high-pressure seal, mainly made of metal. Metal seals have high temperature and high pressure performance and corrosion resistance, and are suitable for high temperature and high pressure hydraulic systems and Pressure system.
Unidirectional seals and bidirectional seals are classified based on different sealing directions. A unidirectional seal can only prevent the leakage of liquid or gas from one direction, while a bidirectional seal can prevent the leakage of liquid or gas from both directions. Rotating seal is a type of seal that can rotate and is mainly used for sealing rotating shafts. Rotary seals are divided into unidirectional rotary seals and bidirectional rotary seals.
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