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Ningbo Ejoin Machinery Co.,Ltd

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Non-standard pre-built nuts customization

Non-standard pre-built nuts customization

  • Category:Non-standard fasteners
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  • Release time:2022-07-20 16:07:22
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Valve stem processing factory's cold heading processing is a metal forming process. Generally speaking, under the processing conditions, compared with traditional processing methods, cold pier processing has the advantages of extrusion, punching and rolling


First of all, it has a high utilization rate of steel, the general cutting method is only 25% to 35%, while the processing method of cold pier can reach 85% to 95%, which means the process of cold pier is better. Secondly, the productivity is tens of times higher compared with traditional cutting. It can be very reflective and will be much stronger than the cutting process in terms of strength level.


These are the advantages of cold pier processing, from the efficiency of such doubling, cold pier processing is undoubtedly a relatively good process method now.


We should remember that cold heading processing part forming upsetting forming has two concepts.


One is all the head pressure, that is, the end face of all goods.


The second is partial upsetting, that is, only in the necessary part of the effective pressure.


For all specialized precision hardware machining forming, large tonnage presses are required due to the large cold head machining area and high forming loads. For part forming, the necessary thickness conversion can be obtained with lower loads, which is very common for forming of holes and slots.

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