JB/T 58651.11-1999 Fastener product quality classification Rivets

JB/T 58651.11-1999 Fasteners Product Quality Classification Rivets JB/T58651.11-1999 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)
1999-12-30 Issued
National Machinery Industry Bureau
2000-06-01 Implementation
General Mechanical Industry Standards of the People's Republic of China
Fastener Product Quality Grading Rivets
(Internal Use)
JB/T 58651.11—1999
(5T 5862[.1:—93
This standard specifies the principle of quality control for rivets produced according to national and industry standards. It can also be used as a reference when the existing products are graded according to their specifications. The same grade is adopted in the standard, i.e., grade-qualified products, grade-1 products, and qualified products. This standard is applicable to batches of products of a single specification accepted by the state. The size codes used in the standard are all from the current rivet standards 1 and 2. The new provisions included in the following standards are used in this standard and constitute the provisions of this standard through their use in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision: When using this standard, the latest versions of the following standards shall be used for continuity: CB.T 90-1985
GB.T116-1986
GR/T 1214.2—1996
GRT 121—1985
GB/T12619-—1990
Fastener acceptance inspection, marking and color matching
Technical conditions for rivets
Vernier caliper Vernier caliper
Outer diameter micrometer
Technical conditions for anti-core nails
JB:T 58651.[—-1999
General list of quality grades of fastening products
3 Terms, terms and calculation formulas
Definition grades, defect weighted values, unit defect points and calculation formulas of unit defect points shall be in accordance with the provisions of 58651.1. 4 Inspection items, sampling plans, defect levels and weighted values ​​shall be in accordance with the provisions of Table 1 for the sampling, sampling plans, defect levels and weighted values ​​of cylinder products. 5 Grading standards
Standards for quality grade standards of milk products shall be in accordance with the provisions of Table 3 (test methods
State and product inspection department law). Approved by the National Machinery Industry Institute on December 30, 1999 and implemented on June 0, 2001| |tt||Nail head has uniform
Head length or size
Nail machine changes
Aperture 4
Hole embedding
Surface sinking
Pressure test
Tensile test
Compression test
Quality grade
Quality product
Superior product
Mixed product
Nail head straight
Heading effect 6 feet 10
Pole length
Special use
Or card
J8/58651.11-1999
Patent case
Position sinking point standard
0.131 Fs0 335
Standard, specification
GD/T1216
GB/[1214.3
GB/T[214.2www.bzxz.net
GBT1214.2
Acid detection method
Measurement position:/When recording 20mm, head D.5d: 4,2mm);120mm inch head;0.5e10.57 visual inspection must be modified. Special product
Based on the frequency edge
Agricultural decision
Kay's trial version
Bira Test
JB/T58651.11-1999
Yuan 3 (Chapter)
Standard, specification
M/11Z14.2
Inspection method
Times G8/11E6-1986 Section 7 or B12619-1990 Chapter 6
According to Article 9.1 of GB,T126[9—1990, Article 9.2 of GB12619-1990)
According to Article 9.3 of GB12619-19
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