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高温弹簧的标准技术参数比较DIN 2093 and GB 1972 比较:- All requirements are identical except Raw Material and Load Tolerances 除原材料和公差要求不同外, 其它技术要求均一致. DIN 2093 prefers Narrow Tolerances in Load requirements. DIN 2093 对力值公差的要求更加严格. DIN 2093 prefers to use Alloy Carbon Steel (50CrV4) instead of Plain Carbon steel (60Si2Mn or C-80) DIN 2093 首选合金钢(50CrV4), 而国标采用渗碳钢(60SiMn 或C-80) It is a High Quality Alloy steel over plain carbon steel because of Elements like Cr and V. 合金钢比普通碳素钢拥有更高的质量, 原因是加入的Cr元素和V元素: Cr adds strength to the material and V gives more grain refinement. (Fine Grain Size of 3 to 5) Cr可增加材料的强度, 而V可提供更好的晶相结构. Toughness of this Fine Grained Alloy steel is better than Coarse Grained Plain Carbon steel. 细密的晶相结构比粗糙的晶相结构使合金钢拥有更好的韧性. Because of better grain structures, this material gives better results after Heat Treatment w.r.t. uniform Hardness. 由于更好的晶相结构, 合金钢在热处理后能够得到更好的性能,比如, 一致的硬度. Presence of alloy elements like V gives more stable microstructure. 合金元素,例如V, 的存在,使材料拥有更稳定的微观结构. Spherodized annealed structure adds ductility to the material as required for Cold Forming Operation. 球面退火结构增加了材料的延展性, 以便于冷成型加工. 50CrV4 can be easily formed, blanked or shaped, heat treated, hardened and tempered. And hence mainly Intended for Disc Springs. 50CrV4 更容易成型、冲压或裁减和热处理, 因此更适合制作碟形弹簧 |