Air valve nozzle core manufacture method

Abstract

The invention relates to the field of manufacture, in particular to an air valve nozzle core manufacture method, which comprises the following steps of: (1) blanking, (2) punch forming by a cold header, (3) cutting by an automatic lathe, (4) external screw thread processing, (5) internal screw thread processing and (6) product surface oxidation treatment. An air valve nozzle core manufactured by the method has the advantages that the steps are few, and the production efficiency is high.

Description

Technical field [0001] The invention relates to the manufacturing field, and in particular to a method for manufacturing a valve core. Background technique [0002] The current valve cores are basically made of copper materials, but because of the high proportion of copper materials, it will affect the balance performance of the tires, and copper materials are expensive and not environmentally friendly. Therefore, people are now trying to replace copper with aluminum alloy materials. However, the aluminum alloy has a relatively loose crystal structure and poor processing performance, so the existing technology is troublesome to process and the processing efficiency is very low. Moreover, the prior art manufacturing valve core requires cumbersome steps, including cutting, cutting the outer diameter of the head, cutting the outer diameter of the tail, punching, reaming the inner hole, using die to process external threads, and using tapping methods to process internal threads. As ...

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Problems solved by technology

[0002] At present, the valve core is basically made of copper material, but because the copper material has a large proportion, it will affect the balance performance of the tire, and the copper material is expensive and not environmentally friendly, so now people are trying to replace copper with aluminum alloy materials. However, due to the relatively loose crystal structure of aluminum alloy, the processing performance is not very good, so the processing of the existing technology is troublesome and the processing efficiency is very low.

Moreover, the manufacturing of the valve core in the prior art needs to go through cumbersome steps, including blanking, cutting the outer diameter of the head, cutting the outer diameter of the tail, drilling, reaming the inner hole, using dies to process external threads, and using tapping methods to process internal threads And product surface oxidation treatment, so there are more steps, more automatic lathes are used, and the production efficiency is relatively low

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