Most blow molds are designed with several independent cooling zones. The neck and bottom require the most heat to be expelled. Cooling has a challenging and very important significance in the design of blowing molds. Drilled cooling lines are installed where cooling is most needed. For better production control. Therefore, the most effective cooling is required.
Therefore, the mold cavity is usually machine cut. Copper alloy blow molds also have high heat conductivity and good corrosion resistance. However, the information needed to create a blow mold must have high thermal conductivity and sufficient cutting edge strength. The current aluminum 70 75 makes the most advanced alloy for blow molds. Due to the good machining properties of the metal. Its high cost, expensive, and because its proportion of three times the aluminum, may be more serious wear on the molding machine. The steel alloy blowing mold is easy to repair by welding or mosaic.
Because the strength and hardness of cast aluminum can not meet the cutting edge of the blade requirements. Cast aluminum blowing molds have lower thermal conductivity than cutting aluminum blow molds. The cut-outs of the mold cavity usually require copper alloy or stainless steel inlays.
The operating hole and shoulder area are inlaid with copper alloy or stainless steel. The bottom and neck are also inlaid with these two metals. Casting blow molds can also be cast from copper alloys. Casting steel cavities is relatively easy and Kirk alloy (zinc) castings can be made on steel masters. The cavity and the bottom plate are cast to a certain size. Due to the lack of strength of the Kirk alloy to cut off the plastic. Because it is relying on pressure or gravity casting. These cavities have many fine parts produced from steel masters or ceramic blow molds.
Therefore, the mold cavity is usually machine cut. Copper alloy blow molds also have high heat conductivity and good corrosion resistance. However, the information needed to create a blow mold must have high thermal conductivity and sufficient cutting edge strength. The current aluminum 70 75 makes the most advanced alloy for blow molds. Due to the good machining properties of the metal. Its high cost, expensive, and because its proportion of three times the aluminum, may be more serious wear on the molding machine. The steel alloy blowing mold is easy to repair by welding or mosaic.
Because the strength and hardness of cast aluminum can not meet the cutting edge of the blade requirements. Cast aluminum blowing molds have lower thermal conductivity than cutting aluminum blow molds. The cut-outs of the mold cavity usually require copper alloy or stainless steel inlays.
The operating hole and shoulder area are inlaid with copper alloy or stainless steel. The bottom and neck are also inlaid with these two metals. Casting blow molds can also be cast from copper alloys. Casting steel cavities is relatively easy and Kirk alloy (zinc) castings can be made on steel masters. The cavity and the bottom plate are cast to a certain size. Due to the lack of strength of the Kirk alloy to cut off the plastic. Because it is relying on pressure or gravity casting. These cavities have many fine parts produced from steel masters or ceramic blow molds.
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Good things always want them to stay longer, using bird feeders allows birds to stay longer in your garden, and you have more time to observe and appreciate them. You can listen to their beautiful voices and bring more happiness to your life. For different birds, we have different styles of bird feeder. The main difference is that the material is different and the aperture is different. Please tell us your needs, we will recommend the most suitable bird feeder products for you.Bird Feeder
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