THE BENEFITS OF USING CARBIDE PUNCHES
433TABLE OF CONTENTS THE STRENGTH OF CARBIDE PUNCHES THE LONG LIFESPAN OF CARBIDE PUNCHES BOOSTING PRODUCTIVITY WITH CARBIDE PUNCHES CARBIDE TOOLING C...
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There are many different kinds of ejector pins in the market nowadays and it is a challenge for users to select the correct ones. In most cases, selecting an inappropriate ejector pin is wasting resources and creates inefficiency in production.
Many of us understand the importance of material and related hardness when selecting an ejector pin. However, in this article, we will focus on another important factor and that will be the working temperature.
Working temperature is crucial because it affects the lifetime or durability of an ejector pin. For example, if the working temperature is high and the ejector pin being used is made for a low working temperature environment, then the ejector pins will certainly not last long.
In the market, there are three common types of ejector pins: (1) through hard pins, (2) nitride H13 pins and (3) the newly developed black ejector pins. All of these pins are excellent to use; however, each has its own characteristics and is designed to be used in a specific environment.
The design of the through hard pins involves the same hardness throughout the diameter of the ejector pin. With this characteristic, the ejector pin can last much longer in working temperatures below 200°C. It is mainly suitable for plastic injection molds.
If the working temperature goes beyond 200°C, then nitride H13 pins will be a much better fit. The reason is that the surface of these pin has a hardness of HRC 65 to 70, which can lead to a much better life expectancy in high working temperatures. These pins are best for die casting.
Nitride H13 pins are not suitable for working temperatures that exceed 600°C, so black ejector pins were developed as an option. These pins have a special black surface coating treatment on the entire pin that can sustain working temperatures up to 1,000oC. Also, the special black surface treatment provides additional self lubrication to the ejector pin, making it an excellent fit for automobile injection molding. These pins are suitable for most working temperatures, but the cost of such a pin is higher.
From the above comparison, it is evident that different types of ejector pins are suitable for different environments, which is why working temperature is a necessary factor to consider before your final selection. This will also apply to ejector sleeve and ejector blade selection.
If you want get more information about ejector pins, welcome to contact us freely!We have perfect after-sales service and technical support. Look forward to your cooperation!
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