JB/T 6141.3-1992 Carburizing metallographic inspection of heavy-duty gears

This standard specifies the technical requirements and metallographic levels for metallographic structure inspection of carburizing and quenching and tempering of heavy-duty gears. This standard is applicable to the metallographic inspection of heavy-duty carburized gears made of steel such as 20CrMnTi, 20CrMnMo, 20CrNi3Mo, 15CrNi3Mo, 10Cr12Bu4, etc. JB/T 6141.3-1992 Metallurgical inspection of carburizing of heavy-duty gears JB/T6141.3-1992 Standard download and decompression password: www.bzxz.net

Pressing Machinery Ring Industry Standard JB/T6141.31992
1992-06-094
14||tt ||1993-01-01 Noodles
Lean forward
Gathering questions
2.1 Fried noodles| | tt | .05~0.15mm
Huaxiong
Facial oxygen skin rate 4
5~6| |tt||2.1.3
2.2.2| |tt||3
3.1 Overlord
我| |tt||4% bottle
1992-06-09
1 ~4 Hao
1~3 Guo
4| |tt||5g
1993-01-01
±||tt ||1
4| |tt||5
private A1b
private Ald
iAle| |tt||4A1f
4B1gB2a
B1gB2b
4B1pB20
4B1B2d
4B1gB2e
4BlpB2f|| tt||4C1pC2a
4C1pC2b
4C1gC2c
C1p C2dwww.bzxz.net
4 Clg C2e
4C1pC2f
JB/T6141.31992||tt ||#1
Bottle
Withdrawal
Withdrawal icon | |tt | ||4
5%~8% side
30% box
40%| |tt||55% plate
JB/T6141.31992
王400×
b| |tt||d44
B1||tt ||JB/T6141.31992
王400x
JB/T6141.31992
62|| tt||d44
things
c3%||tt ||e5%
JB/T6141.31992
王400×| | tt | | b | |tt||a14
JB/T6141.31992
JB/ZQ4039988| |tt||624
×%|| tt||JB/T 6141.31992
Degree by g
880A1230
1992A10 blocks||tt| |100044
1992A10
10.006|| tt||14,000
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