Method for manufacturing seamless copper pipe and rod core used for cold rolling mill

A manufacturing method and technology of a cold-rolled pipe mill, applied in the direction of manufacturing tools, pipes, rigid pipes, etc., can solve problems such as waste of manpower and material resources, limited length of copper pipes, low efficiency, etc., and achieve copper saving and qualified rate of finished products The effect of improving and reducing the number of people

Inactive Publication Date: 2011-03-30
SHANDONG ZHONGJIA NEW MATERIALS
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Problems solved by technology

[0002] Thick-walled seamless copper pipe is a high-efficiency and energy-saving product. For a long time, my country has not been able to solve the technical problems of producing thick-walled seamless copper pipe. For such products, one is to rely on imports from abroad, but the price is expensive; the other is to use copper Bar lathe processing, this method is limited by the lathe, the length of the copper tube produced is limited, the efficiency is low, and the yield is low, resulting in waste of manpower, material resources and other resources

Method used

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  • Method for manufacturing seamless copper pipe and rod core used for cold rolling mill
  • Method for manufacturing seamless copper pipe and rod core used for cold rolling mill

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] A method for manufacturing a seamless copper tube, comprising the steps of: using high-purity cathode copper Cu-CATH-1 to cast a solid ingot with a diameter of 185 mm and a length of 500 mm through a 1T semi-continuous casting unit; heating the solid ingot with gas The furnace is heated to 850°C, and a thick-walled tube billet with an outer diameter of 80mm and a wall thickness of 11mm is extruded on a 1600T horizontal double-action water-sealed extruder; A copper tube with a diameter of 40mm and a wall thickness of 10mm.

[0015] Such as figure 1 As shown, the rod core used in this cold rolling mill is composed of multi-section continuous cylinders and circular trusses. From front to back, they are: a cylinder 1 with a diameter of 20mm and a length of 335mm, a diameter of 20mm at the front end, and a diameter of 26mm at the rear end. ...

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Abstract

The invention discloses a method for manufacturing a seamless copper pipe, and a rod core used for a cold rolling mill. The method comprises the following steps of: casting a solid billet from high-purity cathode copper by using a semi continuous casting machine; heating the solid billet to the temperature of between 800 and 900 DEG C by using a fuel gas heating furnace; extruding a thick-walled tube blank by using a horizontal double-action extruding machine; and rolling the tube blank into a required seamless copper pipe by using a cold pilgering mill. The rod core used for the cold rolling mill consists of a plurality of continuous cylinders and frustums. By the manufacturing method of the invention, copper pipes with thicker walls and smaller holes can be manufactured, and the production cost of manufacturers is reduced.

Description

technical field [0001] The invention relates to a method for manufacturing a seamless pipe, in particular to a method for manufacturing a thick-walled seamless copper pipe and a rod core for a cold rolling mill. Background technique [0002] Thick-walled seamless copper pipe is a high-efficiency and energy-saving product. For a long time, my country has not been able to solve the technical problems of producing thick-walled seamless copper pipe. For such products, one is to rely on imports from abroad, but the price is expensive; the other is to use copper Bar lathe processing, this method is limited by the lathe, the length of the copper tube produced is limited, the efficiency is low, and the yield is low, resulting in a waste of resources such as manpower and material resources. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcoming of prior art, provide a kind of wall thickness, the manufacturing method of the seamless cop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/02B21B23/00B21B25/00
Inventor 赵钦海彭永聪
Owner SHANDONG ZHONGJIA NEW MATERIALS
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