JB/T 58651.10-1999 Fastener product quality grading pin JB/T58651.10-1999 Standard download decompression password: www.bzxz.net

Mechanical Industry Standards of the People's Republic of China
JE/T 58651.1~58651.14-1999
JB/T58652-1999
Fastener Product Quality Grading
(Internal Use)
Published on 1999-12-30
National Bureau of Machinery Industry
Implemented on 2000-06-01
Mechanical Industry Standards of the People's Republic of China
Fastener Product Quality Grading
(Internal Use)
JB.T 58651.10—1999
JB/T 98651.10—93
This standard specifies the principles and methods for the quality grading of marketing products produced in accordance with national standards and industry standards. It can be used as a reference when grading the quality of marketing products produced in accordance with other standards. This standard uses one level of grading, namely superior products, first-class products, and qualified products. This standard is applicable to products with a single specification in accordance with GB/T90. The size codes used in this standard are consistent with the current marketing standards. 2 References
The provisions contained in the following standards become provisions of this standard through reference in the standard. When this standard is published, the version is effective. All standards will be revised, and the party using the standard should explore the possibility of using the latest version of the standard. GB/T 90--1983
GB/T 91-[986
GB/T 121—1986
GB/T 874—1586
GB/1214.2—1996
GB/T1216 1985
GE/T19S7
GB/T 3771997
GRT194—19R3
IBT 58651.1—1999
3 Technical specifications, calculation formulas
Acceptance inspection of quality parts, marking and packaging
Technical conditions for pins
Elastic quality pins
Vernier scales, vernier scales
Outer diameter T scales
Smooth limit gauges
Inspection of smooth workpiece dimensions
Thread gauges
Quality classification of fasteners, general provisions
Definition of defect grades, defect weightings and unit defect grade standards, and calculation formulas for unit defect grade are specified in 5651.1. 4 Inspection items, sampling plans, defect grades and weightings The variable items of the product, sampling plans, defect grades and weightings shall be specified in Table 1. 5 Grading standards
Quality inspection grading standards for marketing products shall be in accordance with the provisions of Table 2. 6 Inspection methods
Inspection methods for marketing products shall be in accordance with the provisions of Table 3.
Approved by the State Machinery Industry Bureau on December 31, 1999 and implemented on June 1, 2000
Bundled inspection items
Mixed products
58651.10-1999
Butterfly effect gauge 1 Internal thread gauge (mean diameter and major diameter) Small diameter of internal thread,
Scratched thread gauge (mean diameter and minor diameter of external thread) Large diameter of external thread
Sugar dragon degree
opening depth
standard length 5
embroidery depth
aperture
column end, small diameter
head diameter d
head height k
reducible and universal displacement of two feet
opening angle 2
national defects
respected test
with test
learning level
qualified products
first-class high
superior products
sample Dadong
degree reduction standard
F >0263
0.105.263
Coal efficiency general regulations: internal diameter of the inner thread; the inner thread core diameter D, the general design (external middle diameter and minor diameter, external buried diameter, narrowing degree, ring connection degree! The length of the labor required is the hole detection degree: the four ends have a diameter mountain F meter, special tools JB/T58651.1 ( -1999
Screw system tight gauge
Light potential detector gland caliper
Age round view
(1)Card
(2)Special inspection tool
)Card
【2】Special inspection tool
Maizhou fuel education plug gauge
and caliper
(caliper
(2】Complete sliding height
Special pin sample
Standard tape, standard replacement
GD/T1216
Root GBT3177
GE.T J934 | | tt | | GB: T3934 | 1214.2
GB/T12142
GE/T1957
GB/T1214.2
GR/T 1214.2
When the inspection is carried out according to the method
, at:
30 o'clock, (the auxiliary inspection is gradually opened if there is any dispute, the inspection radius is 1 cm and half of the radius is set)
the moment must be
used to return to the difficult rules and the internal combustion effect: it should be able to use the dragon to stop the book and plug the person in the inner end, and then use the card to measure my depth, which is less than 1.5 catties
use the dry will be transported to the end to rotate the person, the industry can and encounter the position of the surprise measurement department: the length of the mosquito net is 12 places, a good match to the two true sides! Micro-measurement
Use the short side as the standard
At the scattered place of God (no bottom: stick axis center line - convex disease] into the measuring company
light will be through the end thread ring gauge on the single frequency rod, the inner H ruler from the leakage to the period of the medical world to remove the length and width of the inner balance angle)
First, the through end coal pattern needs to be measured by the frequency gauge of the person who needs to use the type gauge of the traveler
Use the light gauge to measure the distance between the continentbzxZ.net
First insert the special pin sample into the child, and then use the caliper side to subtract the pin library card street: double hole drum to remove the pin sample diameter: 41
actual elimination sample 4
head emperor high seat point
two cards of the flag and remember you
night face missing cabinet||tt| |Shear test
and common test
special uniform
JB/r58651.10-199y
table (end]
special corner bank board
standard: ground grid
GBVE1214.2
GB/T1214.2
special health planning regulations can be successfully passed
CB/91 or GBT879 or CB/T121 or standard
single thick pin is not inspected, it will be changed to 121 standard
5mm is not inspected]
elastic pull pin must (i:1879 regulations
open can connect GB91 regulations
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