描述
Precision Shaft Quality (PSQ) Bars 精密轴用棒材
产品描述 / Product Description
中文：
精密轴用棒材（PSQ）是专为高精度轴类零件设计的特种钢材，具有严格的尺寸公差、优异的表面质量和机械性能一致性，适用于汽车、航空航天和精密机械领域。
English:
Precision Shaft Quality (PSQ) Bars are specialty steel bars designed for high-precision shaft applications, featuring tight dimensional tolerances, superior surface quality and consistent mechanical properties, ideal for automotive, aerospace and precision machinery applications.
产品规格 / Product Specifications
1. 基本参数 / Basic Parameters
| 标准/Standard | 材质/Material | 直径范围/Diameter | 长度/Length | 生产工艺/Process |
|---|---|---|---|---|
| ASTM A108 DIN 1013 JIS G4805 |
1045, 4140 8620, 4340 SCM440 |
5mm-150mm | 3m/4m/6m 或定制 |
冷拉+磨削 Cold Drawn+Ground |
2. 尺寸公差 / Dimensional Tolerance
| 直径范围/Diameter | 直径公差/OD Tol. | 圆度/Roundness | 直线度/Straightness |
|---|---|---|---|
| 5-20mm | ±0.01mm | ≤0.005mm | ≤0.1mm/m |
| 20-50mm | ±0.015mm | ≤0.008mm | ≤0.15mm/m |
| 50-150mm | ±0.02mm | ≤0.01mm | ≤0.2mm/m |
3. 机械性能 / Mechanical Properties
| 材质/Material | 抗拉强度/Tensile (MPa) | 屈服强度/Yield (MPa) | 延伸率/Elongation (%) | 硬度/Hardness |
|---|---|---|---|---|
| 1045 | 600-750 | ≥450 | ≥15 | HRB 85-95 |
| 4140 | 850-1000 | ≥700 | ≥18 | HRC 28-32 |
| 8620 | 600-850 | ≥450 | ≥20 | HRB 90-100 |
4. 表面特性 / Surface Characteristics
- 表面光洁度/Surface Finish: Ra 0.2-0.4μm (磨削后/After grinding)
- 残余应力/Residual Stress: ≤50MPa (通过X射线衍射检测/XRD tested)
- 缺陷控制/Defects:
- 无裂纹/No cracks (磁粉检测/MT tested)
- 无夹杂物/No inclusions (超声波检测/UT tested)
5. 检测与认证 / Testing & Certification
| 检测项目/Test | 检测方法/Method | 检测频率/Frequency | 证书/Certificate |
|---|---|---|---|
| 超声波检测/UT | ASTM A388 | 100%全检/100% | EN 10204 3.2 |
| 硬度测试/Hardness | ASTM E10/E18 | 每批次/Per batch | 随货报告/Test report |
| 金相分析/Metallography | ASTM E3/E112 | 每炉号/Per heat | 材质报告/MTR |
附加服务 / Additional Services
中文：
– 提供超精密磨削（公差±0.005mm）
– 定制热处理（渗碳/氮化/感应淬火）
– 预加工服务（车削/铣削/钻孔）
English:
– Ultra-precision grinding (±0.005mm)
– Custom heat treatment (Carburizing/Nitriding/Induction hardening)
– Pre-machining services (Turning/Milling/Drilling)
注：所有产品均附带完整的检测报告和材质证明书
Note: All products come with complete test reports and material certificates
