GB/T 30817-2014Cold coil conical helical spring - Technical specification (English PDF)
冷卷截锥螺旋弹簧 技术条件
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 6, 2014
Implementation date
December 31, 2014
Scope
GB/T 30817-2014 is the English-translated version of 冷卷截锥螺旋弹簧 技术条件.
GB/T 30817-2014 is the Chinese standard "Cold coil conical helical spring - Technical specification".
Its scope clause reads: This standard specifies the material with a circular cross section truncated cone of cold roll coil spring of technical requirements, test methods, inspection rules, packaging, labeling, transportation Transport and storage requirements.
This standard applies to material cross-sectional diameter less than or equal to the circular cross section truncated cone of cold roll coil spring 16mm (hereinafter referred to as the truncated cone spiral shells reed). Its clauses include terms and definitions; classification and structure.
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Document preview — GB/T 30817-2014
National Standard of the People's Republic of China
- ICS
- 21.160
- Classification
- J 26
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 classification and structure
1 Scope
This standard specifies the material with a circular cross section truncated cone of cold roll coil spring of technical requirements, test methods, inspection rules, packaging, labeling, transportation
Transport and storage requirements.
This standard applies to material cross-sectional diameter less than or equal to the circular cross section truncated cone of cold roll coil spring 16mm (hereinafter referred to as the truncated cone spiral shells reed).
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 1239.2 Cold coiled helical springs - Technical specifications - Part 2. Compression springs
GB/T 1805 spring term
GB/T 4357 cold-drawn carbon spring steel wire
GB/T 10610 Geometrical product specifications (GPS) Surface texture Profile method - Rules and procedures for evaluation of the surface structure
GB/T 16947 coil spring fatigue testing standard
GB/T 18983 quenching oil - tempered spring steel wire
GB/T 21652 Copper and copper alloy wire
GB/T 24588 stainless spring steel wire
JB/T 7944 sampling inspection helical springs
JB/T 10802 spring shot peening specifications
YB/T 5311 important use of carbon spring steel wire
YS/T 571 beryllium copper round wire
3 Terms and Definitions
Terms and definitions GB/T 1805 defined apply to this document.
4 classification and structure
4.1 Classification
Truncated cone of the coil spring can be divided into.
a) equal pitch truncated cone coil springs
Etc. Pitch truncated cone coil springs in Figure 1a). Spiral projection on the bottom surface of Archimedes spiral, coil pitch t is effective
An equal amount.
b) truncated cone, etc. helix angle helical spring
And other truncated cone helix angle of the coil spring shown in Figure 1b). Helix angle alpha helix in the bottom surface of the projection for the logarithmic spiral, coil effective
An equal amount.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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