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

A processing method and technology of copper tubes, which are applied in the field of processing metal pipe parts for pipe end sealing, can solve problems such as harmful to human health, increased electroplating production, and large waste of materials, and achieve low cost, reduced production cycle and cost, and materials. The effect of high utilization

Active Publication Date: 2010-08-18
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

Method used

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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] The specific embodiment of the present invention can refer to accompanying drawing 3. The entire product forming process is to first cut the tube blank into a certain length of metal hollow pipe fittings, and under the action of the manipulator, send the tube blank to the punch 12 in the notch die in the accompanying drawings 1 and 2 for positioning, and the die 9 goes down After the end face of the pipe fitting is cut into the size and shape required in the process flow table, it is sent to the punch 3 at the die opening position of the main mold of the flanging die, and then the pipe fitting cut into a certain shape is passed down through the die 4 along the two sides. The side wall is straightened, the flanging is formed, and then the formed part is withdrawn from the main mold under the action of the thimble of the ejection mechanism, and the robot puts it on another workbench, and the hollow tube softened by the recrystallization annealing process On another two-st...

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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 Patents(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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