GB/T 4169.3-1984 Plastic injection mold parts with guide bushings

GB/T 4169.3-1984 Plastic injection mold parts with guide bushings GB/T4169.3-1984 Standard download decompression password: www.bzxz.net

Marking example:
National Standard of the People's Republic of China
Plastic injection mold parts
Guide bushing with head
Components of Injectton mould for plxstlce---Galde bashes with head
D=12, L=40 with guide bushing with head, type I:
Guide bushing 12× 40 (I)
National Bureau of Standards 1984-02-27 Issued
GB4169.3—84
UDC 621.725.29
GB4169.3—84
The rest 5
1985 — 01 — 01 Implementation
When the material is 20 steel,
GB 4169.3—84
-20 steel
Guide bushing $12×40 (I)
Basic size
Limit deviation
d, (k6)
d, (e7)
d, f?)
Basic size
Limit deviation
Basic size
Limit deviation
Basic size
Limit deviation
+0, 001
GB 4169.3—84
GB 4169.3—84
Material: T8AGB1298-77:20 steel GB699--65 technical conditions,
, heat treatment HRC50~55, 20 steel magnetic infiltration .5~0.8 hardness HRC56~60. b, the geometric tolerance values ​​marked in the figure are in accordance with Appendix 1 of GB1184-80, t is level 6. c, the chamfer shown in the figure is not greater than 0,5×45°. d: Others are in accordance with GB4170-84.
Additional remarks: www.bzxz.net
This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China and is under the jurisdiction of the Guilin Electric Science Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Guilin Electrical Science Research Institute of the Ministry of Machinery Industry, the Shanghai Plastic Products Mould Factory of the Ministry of Light Industry, the Chongqing Radio Factory of the Ministry of Electronics Industry, the Shanghai Spark Mould Factory of Shanghai, the Beijing Qingyun Instrument Factory of the Ministry of Aviation Industry, and the Taiyuan Weidong Chemical Factory of the Ministry of Ordnance Industry. The main drafters of this standard are Zhang Ansheng, Zhao Yunjie, Yang Bingxin, Wang Xu, Wei Min, and Wu Zhengyuan.
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