技术文章

工业设备部件:精密零件多工序制造案例
工业设备部件:精密零件多工序制造案例

对于需要复杂几何形状和严格公差的工业设备部件,单一制造工艺通常难以满足要求。最佳方案涉及顺序多工序策略,通常结合CNC加工、金属冲压、弹簧卷制和表面处理,与单一来源尝试相比,总成本可降低15-20%。本文详细介绍了一个气动执行器阀体的工程案例,展示了BQUQ在东莞20年的经验如何协调这些工艺,以实现±0.005毫米的公...

冲压润滑指南:选择合适的油品以延长模具寿命并确保精度
冲压润滑指南:选择合适的油品以延长模具寿命并确保精度

冲压润滑是指在金属板材毛坯与成形模具表面之间可控地施加一层工程流体膜,旨在减少摩擦、管理热量并防止咬合或焊合。正确的油品选择取决于三个主要变量:材料厚度、冲压速度和变形严重程度(拉延比)。对于厚度在3.0毫米以下的90%标准低碳钢应用,无氯、中等粘度(40°C下100-150 cSt)的拉延油是最佳起点,但高强度钢和铝...

电接触件与端子:精密冲压如何确保可靠性与性能
电接触件与端子:精密冲压如何确保可靠性与性能

精密冲压使电触点和端子可靠性的直接答案在于消除关键尺寸、表面光洁度和材料晶粒结构的微观变化。通过将公差控制在±0.01 mm以内,并保持表面粗糙度一致达到Ra 0.4 µm或更优,冲压确保了可预测的低电阻接触界面,能够承受振动、热循环和数百万次插拔而不失效。该工艺在大批量生产运行中实现了99.97%的尺寸一致性率,这是...

散热器热阻:如何阅读规格并正确选型
散热器热阻:如何阅读规格并正确选型

热阻,记作Rth或θ,是散热器最重要的规格参数,因为它量化了元件对热流的阻碍程度,单位为摄氏度每瓦(°C/W)。要正确读取该规格,必须明白Rth值越低代表散热性能越好,并且在比较不同器件之前,务必核实所标注的气流条件(自然对流 vs. 强制风冷)。实际来说,热阻为1.0 °C/W的散热器,每耗散1瓦热量,其温度将比环境...

冲压模具交期:制造周期与成本驱动因素
冲压模具交期:制造周期与成本驱动因素

直接回答:冲压模具制造需要多长时间?对于用于大批量金属冲压的标准级进模,制造周期通常为4至8周。简单的复合落料模可在2至3周内完成,而具有复杂特征的多工位级进模则可能需要10至12周。该周期涵盖设计、材料采购、CNC加工、线切割、装配和现场试模,但不包括设计冻结后提出的任何工程变更。材料采购与钢材选择初始阶段最大的变量...


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