Disc drawing round pipe mold capable of being used by joint

A round tube and mold technology, which is applied in the field of coiled round tube molds, can solve the problems of reducing product output and cracking, and achieve the effect of increasing product output

Pending Publication Date: 2021-11-02
JIANGSU ASIA PACIFIC LIGHT ALLOY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the extruded aluminum tube is drawn, it tends to crack at the joint formed by th

Method used

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  • Disc drawing round pipe mold capable of being used by joint
  • Disc drawing round pipe mold capable of being used by joint
  • Disc drawing round pipe mold capable of being used by joint

Examples

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[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] A coil-drawn round tube mold that can be used for joints, combined with Figure 1 to Figure 5 As shown, including matching upper mold and lower mold, the upper mold and the lower mold are provided with through holes, and the discharge end surface of the upper mold and the feed end surface of the lower mold are tightly connected by the pin shaft pierced in the through hole. Fixed connection.

[0022] The feeding die mouth of the upper mold is processed with an undercut 4, which can prevent gaps caused by turning over aluminum on the die mouth plane of the upper mold after the mold squeezes out a section of aluminum rod, and the mold mouth is made into a circle of undercut 4, so that After extruding a section of aluminum rod, the shearing plane is flat and there is no gap. The inside of the upper die is provided with three spli...

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PUM

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Abstract

The invention discloses a disc drawing round pipe mold capable of being used by a joint. The disc drawing round pipe mold comprises an upper mold body and a lower mold body which are matched with each other, the discharging end surface of the upper mold body and the feeding end surface of the lower mold body are connected in a fastened mode, a mold core is arranged at the center of the upper mold body in a supporting mode through flow dividing bridges evenly arranged in the circumferential direction, flow dividing holes are formed among the flow dividing bridges, a welding chamber communicating with the flow dividing holes is formed in the feeding end surface of the lower mold body, a mold hole is formed in the center of the welding chamber and communicates with a discharging port formed in the discharging end of the lower mold body, a circle of inverted buckles are machined at a feeding mold orifice of the upper mold body, a mold core head used for being inserted into the mold orifice is detachably embedded in the discharging end of the mold core, an excessive inclination is machined at the joint between a working tape of the mold core head and the bottleneck of a mold core raised head, the number of the flow dividing bridges is three, flow choking blocks are machined in the positions, close to the mold core head, among the flow dividing bridges, and the welding chamber is in a bowl shape with a fillet angle and inclination. According to the disc drawing round pipe mold, the joint formed by connecting the extruded front section of aluminum bar with the extruded rear section of aluminum bar is not cracked during disc drawing, so that the yield of pipe products is greatly improved.

Description

technical field [0001] The invention relates to the technical field of hot extrusion dies for metal profiles, in particular to a coil-drawing round pipe die that can be used for joints. Background technique [0002] Now, with the continuous popularization and use of new energy vehicles, the technology of new energy vehicles is also constantly being upgraded and improved. Among them, the shape and material of the air-conditioning tubes in the car are also constantly upgraded and improved. The common air-conditioning aluminum tube material is 3003, which has low strength and lacks strength support. [0003] The material of an existing aluminum pipe for air conditioners is 3004, which is very hard, high in strength and corrosion resistant. Extrusion of this aluminum tube is in the form of coil drawing, which can increase the production output, but the requirements for the joint formed when the former section of aluminum rod is extruded and the latter section of aluminum rod ar...

Claims

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Application Information

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IPC IPC(8): B21C25/02
CPCB21C25/02
Inventor 陆军周福海李杰钱庆
Owner JIANGSU ASIA PACIFIC LIGHT ALLOY TECH CO LTD
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