铸铁平尺的制造标准：按JB/T7977-99标准制造。
铸铁平尺的材质：材质为HT200-250，此种材质的铸铁平行平尺在工业生产中得到广泛应用。
铸铁平尺的加工工艺：工作面采用刮研或精密磨削工艺。
Products introduction
Cast iron straight gauge made according to standard JB/T7977-99.
Material: HT200-250 ,.the cast iron straight gauge have been widely used in industrial.
Processing technic :working surface made by skiving or precise rubbing.
铸铁平尺的用途
铸铁平尺用于检验机床设备的平面度和平行度。
Application :Used for testing machine equipment faltness and parallel degree。
使用方法
应用于检测工件的平面度和垂直度和设备安装，使用温度（20±5）℃。
Usage:
Used to test the straightness and flatness of workpiece and equipment installing. Working environment temperature (20 ± 5)℃.
技术参照表：（非标规格可以订做）
Technical reference form：(According to customers" order)
Dimension规格 | 工作面直线度或平面度 Straightness and flatness
of working surface | 工作面间平行度 Parallelism between working surfaces |
精度等级Precision grade(μm) |
0级 | 1级 | 2级 | 0级 | 1级 | 2级 |
500×35 | 3 | 6 | 12 | 4.54 | 9 | 18 |
750×40 | 4 | 8 | 15 | 6 | 12 | 25 |
1000×50 | 5 | 10 | 20 | 7.5 | 15 | 30 |
1200×50 | | 12 | 24 | | 18 | 36 |
1500×60 | | 15 | 30 | | 20 | 40 |
2000×80 | | 18 | 36 | | 27 | 54 |
2500×80 | | | 44 | | | 65 |
3000×100 | | | 52 | | | 78 |
3500×100 | | | 60 | | | 90 |
4000×100 | | | 68 | | | 100 |
