Processing method of thin-wall copper tube end cold forming seal

A processing method and technology of copper tubes, applied in the field of processing metal pipe parts, can solve the problems of increased electroplating production, harmful to human health, and large waste of materials, so as to reduce production cycle and cost, low cost, and high material quality. The effect of high utilization

Active Publication Date: 2009-06-03
九江财兴卫浴实业有限公司
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Problems solved by technology

[0002] At present, casting or welding processing methods are generally used in the mass processing of metal long blind pipe parts such as single-ended open hollow pipes and faucet spouts. Although this processing method can realize automatic production, the main disadvantage of this processing method is Yes: high energy consumption, large environmental pollution, large waste of materials, high cost, and increase the difficulty of sewage discharge for subsequent electroplating production. At the same time, due to the high lead content of lead brass casting products, the lead in the material will be precipitated into drinking water harmful to human health
Therefore, the production of products for sanitary ware has been restricted

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  • Processing method of thin-wall copper tube end cold forming seal
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  • Processing method of thin-wall copper tube end cold forming seal

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Embodiment Construction

[0017] Specific embodiments of the present invention can refer to the appended image 3 . The entire product forming process is to first cut the tube blank cut into a certain length of metal hollow pipe fittings, and then send the tube blank to the attached tube under the action of the manipulator. figure 1 , 2 The punch 12 in the notch die in the center is positioned on the top, the die 9 goes down, and after the pipe fitting end face is cut into the size and shape required in the process flow table, it is sent to the die opening position punch 3 of the main mold of the flanging die , and then through the concave die 4, the pipe fittings cut into a certain shape are straightened along the two side walls, and the flanging is formed, and then the formed parts are withdrawn from the main mold under the action of the thimble of the ejector mechanism, and the manipulator puts them On another workbench, the hollow tube blank softened by the recrystallization annealing process pas...

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Abstract

The invention relates to a processing method of a thin-wall copper tube end cold forming seal, which is characterized in that the method comprises the following techniques: firstly, a tube stock is cut into a certain length of oblique stocks on a stock feeding and cutting machine; secondly, cutting and flanging are sequentially carried out on the well-put thin-wall copper tube on a punching machine under the action of a feed mechanism; thirdly, stretching, contracting and kneading are carried out on the flanged stock on a two-station tube reducing machine after the flanged stock gets soft by a re-crystallization annealing technique. The method has the advantages that the production cost is reduced greatly, the utilization of the copper product is increased greatly, and the environment is not polluted. However, the processing performance of the material is very poor and the cold processing forming technology is still difficult for breakthrough.

Description

technical field [0001] The invention relates to a processing method for pipe end sealing of metal pipe parts. In particular, it is a processing method for cold forming and sealing the ends of thin-walled copper pipes on ordinary equipment with a cold stamping die. Background technique [0002] At present, casting or welding processing methods are generally used in the mass processing of metal long blind pipe parts such as single-ended open hollow pipes and faucet spouts. Although this processing method can realize automatic production, the main disadvantage of this processing method is Yes: high energy consumption, large environmental pollution, large waste of materials, high cost, and increase the difficulty of sewage discharge for subsequent electroplating production. At the same time, due to the high lead content of lead brass casting products, the lead in the material will be precipitated into drinking water inside, harmful to human health. Therefore, the production of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D41/04
Inventor 江训忠刘明训郝宜熙陈和国余序勇夏伟刚
Owner 九江财兴卫浴实业有限公司
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