Today, LCSC electronics supplier CJT shared knowledge about the pin header. What is the function of a pin header? What are the temperature requirements during production?
What is a Pin Header?
A pin header is a type of connector. This type of connector serves extensively in PCB circuit boards in electronics, electrical appliances, and instruments. And it has a reputation as a universal connector. Generally used in conjunction with it are connectors such as female headers and line terminals.
The Function of Pin Headers
The pin header serves as a bridge between blocked or isolated circuits, transmitting current or signals. It is typically used with a header to create a board-to-board connection or with an electronic wiring harness terminal to create a board-to-wire connection. A Pin header is also suitable for board-to-board connections independently.
During the production process of pin header connectors, various problems may arise. For instance, if the pin header connector product is being injection molded at a high temperature, it may have negative consequences. So do you know the impact of excessive temperature on pin header connectors during injection molding? In the following section, CJT Connector engineers will explain the potential effects of high temperature on the pin header connector.
Temperature Requirements During Production
During testing, it appears that excessive temperature rise of the injection molding machine will deform the rubber seal. That can accelerate aging and failure, reduce sealing performance and service life, and cause leakage.
1.Deformation of rubber seals
During testing, it appears that excessive temperature rise of the injection molding machine will deform the rubber seal. That can accelerate aging and failure, reduce sealing performance and service life, and cause leakage.
2.Thermal deformation of the machinery
Moving parts with different thermal expansion coefficients in hydraulic components become stuck due to the smaller fitting clearance, causing movement failure, affecting the transmission accuracy of the hydraulic system, and resulting in poor working quality of the components.
3.Accelerate the oxidation and deterioration of the oil
Excessive temperature rise of the injection molding machine will accelerate the oxidation and deterioration of the oil, precipitate asphalt substances, and reduce the service life of the hydraulic oil. The precipitates block the damping holes and slot valve ports, causing the pressure valve to become stuck and unable to operate, the metal pipeline to stretch and bend, or even rupture.
4.Reduce the viscosity of the oil
If the temperature of the injection molding machine rises too much, it can cause the oil viscosity to decrease. That, in turn, can lead to increased leakage and a significant reduction in the volumetric efficiency of the pump and the entire system. When the oil viscosity decreases, the oil film on moving parts, such as slide valves, becomes thinner and more prone to being cut. It increases frictional resistance and leads to increased wear.
As competition in the pin header connector market intensifies, some manufacturers are now using electroplating (imitation gold) and materials (green steel, alloy, etc.) to reduce costs, but this also reduces the use characteristics and life of the product.
