This standard specifies the classification, requirements, test methods, inspection rules and marking, packaging, transportation and storage of synthetic resin drawing triangles. This standard applies to synthetic resin drawing triangles. QB/T 1474.2-2005 Plotter Ruler Triangle Ruler QB/T1474.2-2005 Standard download decompression password: www.bzxz.net

IC5 01.100.40
Classification number, Y50
Alternative number: 157262005
Light Industry Standard of the People's Republic of China
QB/T1474.2—2005
Generation Q/11474.2-1992
Drawing ruler
Triangle ruler
Drawing ruler-Triangle set square2005-03-19 Issued
National Development and Reform Commission of the People's Republic of China2005-09-01 Implementation
QB1474 Comprehensive drawing ruler 3 series standard F+: Impact standard composition QB/T [474.1 Lun drawing ruler upper ruler
QB/T1474.? QB1474.3 Final drawing only
QB [474.4 Drawing collection only
QB/T [474.5 Road drawing collection
QB/T [474.6 South instrument ruler
QH/TJ474.7 Drawing proposal ruler technology, inspection planning, marking, packaging, transportation, production and operation This standard is QJiang 1474 system engraving area tour. This cup standard is QB1474.2-1992 drawing no! Triangle ruler 3 revision: This standard is compared with QBT1474.2-1992. The difference is: the first normative reference text etiquette knows the test age method to eliminate the oily interpretation of Q/T1474, 225
… grade three ruler ~ mm section, indicating 1.m.
This standard is issued by China Light Industry Association. This standard is issued by the National Sports Products Standardization Center 1. This standard is issued by Shanghai Media Graphics Co., Ltd. Dongliu Zhigao Jiaotong Co., Ltd., Shanghai Huakang Stereoscopic Products Co., Ltd., Guangzhou Jinjian Office Products Manufacturing Factory, Nanpinneng Astronomical Products Co., Ltd., and Shanghai Wenwei Products Co., Ltd.! This standard was first issued in April 1992. This is the first revision. This standard will come into effect from 1992, replacing the original industry standard Q/T1474.2 (1992) issued by the Ministry of Light Industry. This standard specifies the classification, requirements, test methods, adjustment rules and marking, and packaging of synthetic tree triangles. This standard is widely used. The clauses listed in this standard become the clauses of this standard through reference to special standards. These are referenced documents of the past, and their subsequent revisions (excluding those included in the revisions) or amendments are not applicable to this standard. However, we encourage you to quickly reach a consensus on whether this standard can be used! This document is a newer version. It is an irregular material document. Its latest standard is QB/T1474.7-2005, which gives the drawing instrument dimension code, inspection rules and instructions. It is classified into three categories: connection, delivery and storage. 3.1 Dimension type: Angle dimension can be divided into flat edge, oblique edge, step edge and return arc type. 3.2 Size segment
75mm--150mm,>150mm~-30)mm,>340mm--450mm:45Umm--600mm:3.3 Thickness
3.4 ​​Angle regulations
The two triangles of the deputy one-angle ruler mountain are matched, and the outer coupons and the emperor must comply with the provisions of the table: Table
Schematic diagram
Original name ()
QB/1474.2—2995
4 Requirements
4.1 The length, width and width difference of the drawing triangle ruler line should comply with the regulations in Table 2.
尺十十
75-- 150
159 -- 390
blood rice line
, 5 three meters should not have an inch of rice money, know the small pass rice to open the symbol table 3 dynamic setting 4.2 draw the two angle ruler flat and virtual deviation
virtual symbol and frequency
75~ 150
:50 - 300
-309 : 450
: 453 -600
4.3 drawing triangle ruler working side straightness compilation difference consider substitute table 4 provisions.
Segment
75~-150www.bzxz.net
152--300
=4u.~hik:
4.4 Drawing one angle ruler angle deviation
Combined with Table 5.
C. [)--0. G
Flat and safe flow test
Two sides have practice degrees and differences
Competition degree attack
Hundreds of letters need to be real meters
Marking ring: ()
4.5 Drawing three-price ruler graduation indication deviation
Combined with specification:
450 ~ 6
4. 65 Observation pressure
Direction elimination
(n/T 1274.2: 2305
The same meter value difference
4.1 The six-sided line should be straight, and there should be no obvious practice, expansion line curve, the same type of line pattern should be uniform, and the state should be: pay attention to the number of treatments.
, the blood should be completely stained, the area should be clear, and there should be no obvious marks, spots and bubbles. 4.5.3
4.6.4 should not cause.
4.6.5 should be smooth and should not have defects
Discussion method||t 5.1 Test conditions
The product is placed in a 123°C environment and the total length and width of the product is 241°. 5.2 The line length and width and the actual accuracy difference
H section readings are the same as the product specifications. The results are in accordance with the specifications in Table 2. 5.3 The flatness deviation of the ruler surface
will be tested in the half-level accuracy of the ruler. The ruler is upward and the work is carried out for three days. The results are in accordance with Table 3. 5.4 Working edge straight line deviation
Connect the workpiece to be inspected with the corresponding "three-dimensional accuracy" ruler, and use a ruler to measure the minimum clearance between the ruler edge and the installation. The result should conform to the provisions of Table 4.
5.5 Self-deviation test
The second ruler should be inspected with a ruler for a number of times. The second ruler should conform to the provisions of Table 5 of QB/T 1474.2. 2005
5.6 Deviation of indication
Deviation of indication of full length: Align the standard zero line of the plate gauge with the standard, then read the measured value at the other end, and subtract it from the standard to determine the deviation of indication of full length: Unit: meter Deviation: The gauge is measured by comparing the measured value with the standard of 0.01mm. The above indication deviation is related to the average value of the table 6 standard: 5.7
Appearance quality
Measure under natural light at a distance of 500mm from the measured object. The result shall comply with the scratch inspection rules of 4.6.
Check QB/T1474 2M5 for marking, packaging, transportation and storage.
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