Huangshan Jinshimu PI profiles have important application value in the hot runner mold industry due to their excellent high temperature resistance, low thermal expansion coefficient, excellent mechanical properties and chemical stability. The following are the main application areas of polyimide profiles in the hot runner mold industry:
- Insulation components in hot runner systems
Insulation gaskets and bushings: In hot runner systems, it is necessary to effectively isolate the high-temperature runner from the low-temperature mold part. Polyimide profiles are often used as insulation gaskets and bushings due to their extremely low thermal conductivity and excellent high temperature resistance, reducing heat loss and improving system efficiency.
Insulation nozzle sleeves: Polyimide profiles are used as insulation sleeves around hot runner nozzles to prevent heat from being transferred to other parts of the mold and ensure the accuracy of temperature control. - Structural support parts in high temperature environments
Hot runner plate support parts: Hot runner plates are prone to thermal expansion at high temperatures. Polyimide profiles can be used to manufacture support parts due to their low thermal expansion coefficient and high mechanical strength to ensure the stability of hot runner plates at high temperatures.
Locking pins and guides: In hot runner molds, polyimide profiles are used to manufacture locating pins and guides, which can maintain dimensional stability and reduce friction and wear in high temperature environments. - Wear-resistant and low-friction parts
Sliding bearings and bushings: Moving parts in hot runner systems (such as valve needles) require low friction and wear resistance. Polyimide profiles are often used to manufacture sliding bearings and bushings due to their self-lubricating and wear resistance, extending the life of the mold.
Valve needle guides: In valve needle hot runner systems, polyimide profiles are used as valve needle guides to ensure smooth movement of the valve needle at high temperatures while reducing wear. - Chemically resistant parts
Seals in chemically corrosive environments: When hot runner molds are processing certain corrosive plastics (such as materials containing halogens or acidic components), polyimide profiles can be used to manufacture seals and corrosion-resistant parts due to their excellent chemical stability.
Solvent-resistant parts: When cleaning hot runner systems, polyimide profiles can withstand a variety of chemical solvents and are suitable for mold parts that require frequent cleaning. - High-temperature insulation parts
Electric heating element insulation parts: The electric heating elements in the hot runner system require good insulation performance. Polyimide profiles can be used to manufacture insulation parts due to their high electrical insulation and high temperature resistance to ensure the safe operation of the heating elements. - Lightweight and high-strength parts
Lightweight mold structural parts: Polyimide profiles have the characteristics of high strength and low density, which can be used to manufacture lightweight mold structural parts, reduce mold weight and improve operating efficiency.
High-strength connectors: In hot runner molds, polyimide profiles are used to manufacture high-strength connectors to ensure the structural stability of the mold under high temperature and high pressure. - Special applications
Quick mold change system parts: In hot runner systems that require quick mold change, polyimide profiles are used to manufacture high-temperature resistant, low-friction quick mold change parts to improve production efficiency.
High-temperature sealing rings: In the sealing parts of the hot runner system, polyimide profiles can be used to manufacture high-temperature sealing rings to ensure the sealing performance of the system at high temperatures.
The application of JSM-PI profiles in the hot runner mold industry is mainly due to its high temperature resistance, low thermal expansion coefficient, wear resistance, chemical stability and electrical insulation. These characteristics make it an indispensable material in the hot runner system and can significantly improve the performance and life of the mold. With the continuous development of hot runner technology, the application prospects of polyimide profiles will be broader.