Method for producing aluminium heat radiation tube in automobile heat radiator
An automobile radiator and heat pipe technology, which is applied in the field of auto parts, can solve the problems of welding seam corrosion and leakage, poor corrosion resistance of heat pipe welding seam, etc., and achieve the effects of reducing production cost, simplifying processing technology and improving durability.
Inactive Publication Date: 2008-07-09
JIANGSU JIAHE THERMAL SYST RADIATOR +1
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Problems solved by technology
[0008] The purpose of the present invention is to provide a method for making heat-dissipating pipes in aluminum automobile radiators, which solves the problem that the existing heat-dissipating pipes are welded by rolling and forming of metal strips due to poor corrosion resistance of weld seams. The base material is poor, and it is easy to form a serious shortage of corrosion leakage at the weld
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[0015] The present invention is further described in conjunction with the accompanying drawings and examples. The method of the present invention is to sequentially draw the aluminum seamless blank tube 11 through a drawing machine to reduce the diameter and thickness; Pressed into a flat shape; cut to length from flat tubes. The drawing machine is used to reduce the diameter and thickness of the aluminum seamless round tube billet, and the fixed core head drawing or the floating core head drawing can be used. The length range of the billet tube is 2000-3000mm. According to the specific diameter reduction and thickness reduction and the material of the pipe, the matching die design for round pipe drawing is carried out. Matching mold design includes drawing pass, die and core mold design. The key to matching mold design is to determine the outer diameter reduction factor and wall thickness reduction factor. The outer diameter reduction coefficient is the ratio of the outer ...
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Belonging to the technical field of automotive parts, the present invention relates to a method of producing a radiating pipe in an aluminum automotive radiator, which is mainly characterized in that after drawing and the reduction of diameter and thickness, an aluminum seamless billet tube is pressed into a flat seamless radiating pipe. Compared with the prior technique of roll-bending and welding, the present invention simplifies the processing technique of the radiating pipe, and the processed seamless radiating pipe thoroughly resolves the problems of the erosion and leakage of the welding line of the prior radiating pipe, improves the durability of the radiating pipe, does not need the complex processing equipment of roll-bending and welding and reduces the cost of production. The present invention realizes the radiating pipe without the erosion and leakage of the welding line, which helps to improve the quality of the radiating pipe and prolong the service life.
Description
technical field [0001] The invention relates to a method for manufacturing a heat dissipation pipe in an aluminum automobile radiator, and belongs to the technical field of automobile parts. Background technique [0002] The cooling system of automobile engine is generally composed of water pump, radiator, thermostat, cooling fan, fan motor and other parts. The radiator is an integral part of the cooling system of a water-cooled internal combustion engine. The function of the radiator is to use cold air to cool the engine coolant heated by the high temperature parts of the engine. [0003] The structure of the radiator mainly includes a radiator core for cooling, an upper water chamber and a lower water chamber. The radiator core is the core part of the radiator, which is composed of heat pipes, heat sinks (or heat dissipation strips), upper and lower main plates, etc. [0004] As an important part of the radiator, the heat pipe is the main place for cooling the coolant, ...
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IPC IPC(8): B23P15/26
Inventor 张连洪李宝民
Owner JIANGSU JIAHE THERMAL SYST RADIATOR