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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 theworking temperature.
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.
Through Hard Pins
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
200oC. It is mainly suitable for plastic injection molds.
Nitride H13 Pins
If the working temperature goes beyond 200oC, 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.
Black Ejector Pins
Nitride H13 pins are not suitable for working temperatures that exceed
600oC, 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.
Summary
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.</div>
Edited by: lastest
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 theworking temperature.
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.
Through Hard Pins
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
200oC. It is mainly suitable for plastic injection molds.
Nitride H13 Pins
If the working temperature goes beyond 200oC, 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.
Black Ejector Pins
Nitride H13 pins are not suitable for working temperatures that exceed
600oC, 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.
Summary
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.</div>
Edited by: lastest