工字平尺(chi)按/T7977-99標準制造，材(cai)料為HT250,工(gong)(gong)(gong)作表面采(cai)用(yong)(yong)刮研或jingmi磨削(xue)工(gong)(gong)(gong)藝(yi)。工(gong)(gong)(gong)字(zi)平(ping)尺用(yong)(yong)于(yu)機床檢(jian)驗中檢(jian)驗不(bu)(bu)平(ping)度(du)(du)和不(bu)(bu)直度(du)(du)兩(liang)個工(gong)(gong)(gong)作面是配(pei)合塊規，千分尺，水(shui)平(ping)儀等儀器檢(jian)驗，不(bu)(bu)同高度(du)(du)，兩(liang)導軌的平(ping)行和不(bu)(bu)連接導軌的水(shui)平(ping)，工(gong)(gong)(gong)字(zi)平(ping)尺并可以配(pei)合直角(jiao)尺，檢(jian)驗只(zhi)用(yong)(yong)直角(jiao)尺無法檢(jian)驗的兩(liang)機件的垂直度(du)(du)的量具，工(gong)(gong)(gong)字(zi)平(ping)尺還適用(yong)(yong)于(yu)設備安(an)裝(zhuang)和檢(jian)查，使用(yong)(yong)溫(wen)度(du)(du)（20±5）℃。
工字平(ping)尺的規(gui)格有很多(duo)種,常見的有：（mm）
500×35 、750×40 、1000×50 、1200×50、 1500×70 、2000×80 、2500×80 、3000×100 、3500×100 、4000×10
工字(zi)平尺(chi)的規格表：
|
規格mm
|
工作面直線度或平面度
|
工作面間平(ping)行度
|
側面對工作面垂(chui)直度
|
||||||
|
度(du)等級(ji)um
|
|||||||||
|
0
|
1
|
2
|
0
|
1
|
2
|
0
|
1
|
2
|
|
|
500×35
|
3
|
6
|
12
|
4.5
|
9
|
18
|
15
|
30
|
60
|
|
750×40
|
4
|
8
|
15
|
6
|
12
|
25
|
20
|
40
|
80
|
|
1000×50
|
5
|
10
|
20
|
7.5
|
15
|
30
|
25
|
50
|
100
|
|
1500×70
|
7.4
|
15
|
30
|
10
|
20
|
40
|
37
|
75
|
150
|
|
2000×90
|
9
|
18
|
36
|
13.5
|
27
|
54
|
45
|
90
|
180
|
|
2500×90
|
11
|
22
|
44
|
16
|
32
|
65
|
55
|
110
|
220
|
|
3000×100
|
13
|
26
|
52
|
19.5
|
39
|
78
|
65
|
130
|
260
|
|
3500×100
|
15
|
30
|
60
|
22
|
45
|
90
|
75
|
150
|
300
|
|
4000×100
|
17
|
34
|
68
|
25
|
50
|
100
|
85
|
170
|
340
|
|
5000×110
|
21
|
42
|
84
|
30
|
60
|
120
|
105
|
210
|
420
|
國產黃色(se)網站視(shi)頻:
國產黃色網(wang)站(zhan)視(shi)頻:
