工字(zi)平(ping)尺按/T7977-99標準制造，材料為HT250,工(gong)(gong)(gong)(gong)作表面采(cai)用刮研或(huo)jingmi磨削工(gong)(gong)(gong)(gong)藝。工(gong)(gong)(gong)(gong)字(zi)平(ping)尺(chi)用于機(ji)(ji)床檢(jian)(jian)驗中檢(jian)(jian)驗不平(ping)度(du)和(he)不直(zhi)度(du)兩個工(gong)(gong)(gong)(gong)作面是配合塊規，千分尺(chi)，水(shui)平(ping)儀等(deng)儀器(qi)檢(jian)(jian)驗，不同高(gao)度(du)，兩導軌的平(ping)行(xing)和(he)不連接導軌的水(shui)平(ping)，工(gong)(gong)(gong)(gong)字(zi)平(ping)尺(chi)并可以(yi)配合直(zhi)角尺(chi)，檢(jian)(jian)驗只用直(zhi)角尺(chi)無法檢(jian)(jian)驗的兩機(ji)(ji)件(jian)的垂(chui)直(zhi)度(du)的量具，工(gong)(gong)(gong)(gong)字(zi)平(ping)尺(chi)還適用于設(she)備(bei)安裝和(he)檢(jian)(jian)查，使用溫(wen)度(du)（20±5）℃。
工字(zi)平(ping)尺的規格有很多(duo)種,常見(jian)的(de)有(you)：（mm）
500×35 、750×40 、1000×50 、1200×50、 1500×70 、2000×80 、2500×80 、3000×100 、3500×100 、4000×10
工字平(ping)尺的規格表(biao)：
|
規格mm
|
工作(zuo)面(mian)直(zhi)線度(du)或(huo)平面(mian)度(du)
|
工作面(mian)間平行度
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側(ce)面對工作面垂直度
|
||||||
|
度等級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
|
中字幕視頻(pin)在(zai)線永(yong)久在(zai)線:
中(zhong)字幕視頻在(zai)線(xian)永久(jiu)在(zai)線(xian):
