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隨著人們生活水平的提高,我們對生活質量的要求也不斷的提高,汽車日漸成為人們的代步工具,今天給大家介紹的不是汽車,而是汽車身上的一個零件,當然汽車通常由幾千個零件組成,現代高級矯車由幾萬個零部件組成.為滿足汽車節能、環保、安全、舒適的要求,實現輕量化、高強度、高性能的目標,構成汽車的材料也發生了巨大的變化。
With the improvement of people's living standard, our quality of life also constantly improve, the car was becoming a means of transport, to introduce the car not today, but a car parts of the body, of course the car usually consists of thousands of parts, modern car by tens of thousands of parts to meet. The automobile energy saving and environmental protection, safety and comfort requirements, realize the lightweight, high strength and high performance target components of automotive materials has also undergone tremendous changes.
從前的高強度鋼板,拉延強度雖高于低碳鋼板,但延伸率只有后者的50%,故只適用于形狀簡單、延伸深度不大的零件.現在的高強度鋼板是在低碳鋼內加入適當的微量元素,經各種處理軋制而成,其抗拉強度高達420N/mm2,是普通低碳鋼板的2~3倍,深拉延性能極好,可軋制成很薄的鋼板,是車身輕量化的重要材 料.主要有含磷冷軋鋼板、烘烤硬化冷軋鋼板、冷軋雙相鋼板和高強度IF冷軋鋼等,車身設計師可根據板制零件受力情況和形狀復雜程度來選擇鋼板品種.
High strength steel used, drawing strength was higher than that of low carbon steel, but the elongation is only 50% of the latter, it is only applicable to simple shape and extend the depth of small parts. High strength steel is now adding trace elements properly in the low carbon steel, by various processing and rolling, the tensile strength of up to 420N/mm2 that is 2~3 times that of ordinary low carbon steel, deep drawing can be rolled into excellent ductility, thin steel plate, is an important material for lightweight body. The main phosphorus cold rolled steel sheet and bake hardening cold rolled steel plate, cold rolled dual phase steel and high strength IF cold rolling, the body can be selected according to the varieties of designer steel plate parts of stress and shape complexity.

含磷高強度冷軋鋼板:含磷高強度冷軋鋼板主要用于轎車外板、車門、頂蓋和行李箱蓋升板,也可用于載貨汽車駕駛室的沖壓件.主要特點為:具有較高強度,比普通 冷軋鋼板高15%~25%;良好的強度和塑性平衡,即隨著強度的增加,伸長率和應變硬化指數下降甚微;具有良好的耐腐蝕性,比普通冷軋鋼板提高20%;具有良好的點焊性能。
Phosphorus containing high strength cold rolled steel sheet: phosphorus high strength cold rolled steel plate mainly used car outer plate, door, roof and trunk lid lifting plate, can also be used for stamping parts of truck cab. Main features: high strength, high ratio of common cold rolled steel 15%~25%; good strength and plasticity balance, with strength the increase of the elongation and strain hardening index decreased little; has good corrosion resistance, 20% higher than the common cold rolled steel plate has good welding performance.
烘烤硬化冷軋鋼板:經過沖壓、拉延變形及烤漆高溫時效處理,屈服強度得以提高.這種簡稱為BH鋼板的烘烤硬化鋼板既薄又有足夠的強度,是車身外板輕量化設計首選材料之一。
Bake hardening of cold rolled steel plate after stamping, drawing and painting high temperature aging treatment, yield strength can be improved. This is referred to as the bake hardening steel BH steel plate is thin and have sufficient strength, lightweight body outer panel design is one of the preferred materials.
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