江蘇新島 YC550 散熱器的設計摘 要：冷卻系統(tǒng)的作用是保證發(fā)動機在最適宜的溫度狀態(tài)下工作。而散熱器是冷卻系統(tǒng)的重要部件，介紹汽車散熱器的結構型式及其對材料的要求。重點分析汽車散熱器材料的應用及其制造技術的發(fā)展情況，并指出汽車散熱器的發(fā)展趨勢。以新島公司現(xiàn)有產(chǎn)品 YC550 散熱器為設計課題，分析現(xiàn)有的散熱器的結構形式及其對材料的要求，分析現(xiàn)有的散熱器制造技術和材料的選擇。參考國內外散熱器制造的新技術——銅硬釬焊技術，銅硬釬焊技術通過采用特殊的銅、錫和磷的釬焊合金,將黃銅和紫銅分別制成管和散熱帶釬焊成一個整體———即散熱器和熱交換器。銅硬釬焊技術的核心是無焊劑、無鉛焊合金以及抗退火材料。介紹了銅硬纖焊散熱器的工藝技術原理及主要材料的性能。指出了銅硬纖焊散熱器在制帶、制管、主片及纖焊爐選型等方面的工藝要點。銅硬纖焊散熱器具有成本低、小型化、無污染及材料的回收和再生產(chǎn)利用率高等優(yōu)點。其工作原理是用奧托昆普公司開發(fā)的銅硬焊金屬填料 OKC600 在高溫 590～610 ℃時熔化,依靠金屬毛細管的作用力,流入焊接間隙,與母體材料(抗退火銅材)發(fā)生反應,在交界處形成合金金屬連續(xù)體,構成高強度的金屬一體化結構，可見新型的銅硬釬焊技術有不著不可取代的優(yōu)點，可減輕整體散熱器的質量。同時分析散熱器制造的技術要求，改進加工工藝。在降低成本的同時提高產(chǎn)品的壽命，延長使用壽命。關鍵詞：汽車散熱器； 冷卻系統(tǒng) ；材料要求； 制造技術； 釬焊技術；Design of Jiangsu Xindao radiator YC550Abstract: The cooling system ensures that the engine works at appropriate temperature and radiator is the important part of the cooling system. This paper introduces the structure type of the automobile radiators and material requirements. Especially it analyzes the application of the automobile radiator material and the development of the manufacturing technology and the development trend of automobile radiators.It gives an overview of yc550 radiator produced by Xindao Company. It analyzes the existing radiator's structural style and to the material request, and the existing radiator technique of manufacture and the material choice. Reference to the radiator at home and abroad to create new technologies - CuproBraze technology, CuproBraze technology through the use of special copper, tin and phosphorus brazing alloys, respectively, will be made of brass and copper pipes and heat with solder welded into a whole --- that is, the radiator and heat exchangers. The key technology of radiator manufacture by CuproBraze is not necessary to use flux, kupper solder and annealing resistance material. The process and technology principle and main material performances for CuproBraze radiator are introduced , the critical technology points of fin and tube manufacture ,header and soldering furnace selection , etc. are presented. The CuproBraze has its advantages of lower cost ,small size ,no contamination , higher material recovery and reproduction usage rate . Its working principle is developed by Outokumpu Copper OKC600 brazing filler metal at a high temperature at 590 ~ 610 ℃ melting, metal capillary forces to rely on, and flows into the welding gap, with the parent material (anti-annealed copper) react formed at the junction of the continuum of metal alloys, high strength metal integrated structure, we can see new CuproBraze technology could not irreplaceable advantages, reduce the overall quality of the radiator. Radiator at the same time analyzing the technical requirements for manufacturing, processing technology to improve. At the same time reducing costs to improve product life and prolong life.Key word: automobile radiator; cooling system; material requirement; manufacturing technology brazing technology.