国产组合螺纹元件质量状况对照表

 对比项 Comparison Item

 上海原元康 Shanghai Omega

 一般制造商 Generic Manufacturer

制造材料
Material

元件的制造选材
Manufacturing Material for Screw Element & Kneading Disk

根据用户工况条件可以多种选材,钢材供应商可靠 Varieties of material can be choosen based on customer's working condition, steel supplier is reliable

一般采用渗氮钢，模具钢和不同种类的高速钢等，钢材供应商良莠不齐Generally made of nitrided steel, mold steel and different kinds of high-speed steel，steel supplier is uneven

产成品硬度
Finished Product Hardness

硬度控制范围 Hardness Control: HRC58～62

因材料质量导致硬度不稳定 Hardness is not stable because of the quality of materials

单个长度较长的螺纹元件内花键 Internal spline of a single longer screw element

全长度满键，强度高，易拆卸 
Spline through full length that element strength is high

中间部分无内花键，元件强度低
there is no spline on the middle of element that strenth is low

尺寸公差范围Size Tolerance   Deviation

内花键底径尺寸公差 
Size tolerances of spline ID

≤0.04mm

≤0.20mm

外径尺寸公差 
Size tolerances of OD

≤0.025mm

≤0.05mm

螺棱底径尺寸公差 
Size tolerances of thread ID

≤0.04mm

≤0.10mm

形位公差范围Shape Tolerance Deviation

二端面与轴线垂直度 
End surface perpendicular to the axis of

≤0.02mm

≤0.08mm

外径与内花键同轴度 Coaxiality of internal spline with thread OD

≤0.03mm

≤0.10mm

关键制造设备Main Machining Equipment

内花键加工设备
Internal Spline Processing Equipment

卧式拉床
Horizontal Broaching Machine

          卧式拉床
Horizontal Broaching Machine

螺棱成型设备Screw Thread Processing Equipment

CNC数控螺纹磨床
CNC Thread Grinding Machine

普通车床改制
General Lathe Restructuring