Process for producing aluminum clad copper tube by using tangential continuous extruder
A technology of extruder and copper tube, applied in the direction of metal extrusion die, etc., can solve the problems of large waste and inapplicability, and achieve the effect of reducing cost, saving raw materials and wide application range.
Inactive Publication Date: 2012-01-04
湖南金龙国际铜业有限公司
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Problems solved by technology
[0006] 3. Since the internal material of the aluminum-clad copper tube can only be copper, this type of product is not suitable for occasions where the internal medium is a variety of strong corrosive media and is limited;
[0007] 4. The rolled aluminum-clad copper pipe is a lot of waste because both ends have to be cut off
Method used
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[0021] from Figure 1 to Figure 3 It can be seen that the tangential continuous extrusion machine of the present invention comprises a shoe base 1 and an extrusion die 2, the extrusion die 2 is installed on the shoe base 1, the extrusion die 2 includes a mold base 3 and a mold core 4, and the mold base has Aluminum material inlet 31, mold core 3 is located in mold base 4, mold core 3 includes flow divider 6, guide pipe 7, cladding mold 8, axial stop bolt 9, flow divider 6 has flow divider claw 61, flow divider Installed in the mold base, fastened by the positioning bolt 62 to prevent the diverter from rotating (it can also be prevented from rotating by other means, such as key connection, etc.). When the diverter is installed, the axial position of the diverter claw should correspond to The aluminum material enters the opening 31, and when the aluminum material enters, energy can flow onto the copper pipe along both sides of the shunt claw, so that the aluminum material envelo...
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The invention discloses a process for producing an aluminum clad copper tube by using a tangential continuous extruder, comprising the following steps: aligning, cleaning, drying aluminium rods and copper tubes, preheating an extrusion die of the tangential continuous extruder if the copper tube is made of red copper or alloy copper; respectively feeding the aluminium rods and copper tubes after treated in step (1) to the tangential continuous extruder, maintaining the heat temperature for the extrusion die of the tangential continuous extruder when the copper tube is made of red copper or alloy copper, and feeding inert gas; obtaining the aluminum clad copper tube after the aluminium rods and copper tubes pass the tangential continuous extruder; cooling or re-expanding opening and drawing the aluminum clad copper tube obtained in step (3), then withdrawing the line, obtaining the finished product of aluminum clad copper tub; adopting the tangential continuous extruder with special extrusion die. The invention improves the quality of the aluminum clad copper tube, and the continuous production saves the raw material and reduces cost.
Description
technical field [0001] The invention relates to a process for continuously producing aluminum-clad copper pipes with a tangential continuous extrusion machine. Background technique [0002] The tangential continuous extrusion machine includes an extrusion wheel, a shoe seat and a mold installed on the shoe seat. At present, the tangential continuous extrusion machine can only be used to produce aluminum clad steel wire or coaxial cable or cable and The jacket on the fiber optic. [0003] Aluminum-clad copper pipe is a pipe used in air-conditioning heat exchangers and some heat exchangers. This pipe can solve the problem of electrochemical corrosion or heat exchange between copper pipes and aluminum brackets in air-conditioning heat exchangers. The problem of corrosion resistance in the pipe in the device, so this kind of pipe is very popular in the market. At present, the production process of aluminum-clad copper pipes is to use pre-cast round red copper rods and pre-cast...
Claims
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IPC IPC(8): B21C23/22B21C25/02
Inventor 谭雄雅
Owner 湖南金龙国际铜业有限公司