减振器技术标准CHEN.docVIP

减振器各零部件图纸技术要求中英文对照表 一、技术要求 Technical RequirementGuide bush（2430182302） 1、塑料表面应光滑、颜色均匀、无明显的脱层、起泡、剥落、无铁屑。The surface of plastic should be smooth, color uniform, no appearance pull off, blister, peel and no scrap iron. 2、倒角应均匀、无毛刺、端面应平齐。The chamfering should be uniform, free from burrs and even. 3、 将衬套压入环规φ250＋0.021后，测试检查衬套内径应保证φ220＋0.021且接缝应接合，平齐，无涂层脱落。 Press the bush into the ring gage of φ250＋0.021，to inspect the OD of bush should be220＋0.021 , and the seam should be joint, even and no blister of coat. 4、其余特性指标应符合DU轴承标准。Other characteristic should be accord with DU bearing standard. 三、油封 oil seal 4303160001） （一）技术要求 Technical Requirement 使用要求: Requirement: （1）运动型式：往复运动。Move type: to-and-fro （2）安装条件：Installation a.活塞杆：直径φ20； 材料：45。表面镀硬铬，硬度850HV以上;表面粗糙度不大于Ra0.1。Piston rod: diameter φ20; Material: 45.Hard chrome plate, Hardness above 850HV, surface roughness not above Ra0.1. b.介质：减振器专用油。Medium: Shock absorber oil. 2、使用寿命：装入减振器中，按QC/T545-1999的规定进行400万次台架试验不渗漏油。Durability: filled into shock absorber, no oil leakage after 4 million cycles durability test according to QC/T545-1999. （二.油封材料要求Material requirement 1.橡胶：特殊NBR；硬度：85±5HS。rubber: Special NBR; Hardness: 85±5HS. 2.骨架：SPCC。framework: SPCC. 3.主唇口弹簧：SVS004。ain lip: SVS004. 4.副唇口弹簧：SWC。framework spring: SWC. （三其他要求：Other requirement 1.耐寒性：-30无裂纹；Anti-cold: no crack under -30℃. 2.表面光洁、去飞边。Surface: smooth, no splash. 四、导向器 Guide24303160002） 1. 倒角处去毛刺; No burrs at chamfering place; 2..未注尺寸公差以 GB1804-m级执行; Under mentioned tolerance should be according to GB1804-m; 3.密度:不小于6.4g/cm Density: not less than 6.4g/cm 4.表面硬度HB80～130; Surface hardness HB80～130; 5.轴向压馈强度不小于10kN；The pressure strength of axle should not be less than 10kN；导向器总成 Guide Assy24303161200） 1、φ180＋0.021尺寸用塞规检验 φ180＋0.021 inspect by plug gauge; 2、件1压出力应大于2000N Press out force of part I should be larger than 2000N 六、活塞杆 Piston rod2437141001） 1、倒棱，去毛刺。Chamfer, no burrs 2、表面镀铬，铬层厚度为20±5μm，镀层粗糙度均匀。Chrome plate on surface, single side thickness i