GB/T 5796.2-2022 in English
VALIDTrapezoidal screw threads—Part 2: General plan
- Issued on:2022-03-09
- Implemented on:2022-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
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$117.00
$117.00
| Standard No: | GB/T 5796.2-2022 |
| Document status: | VALID |
| Title in English: | Trapezoidal screw threads—Part 2: General plan |
| Title in Chinese: | 梯形螺纹 第2部分：直径与螺距系列 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2022-03-09 |
| Implemented on: | 2022-10-01 |
| Superseding: |
GB/T 5796.2-2005 Trapezoidal screw threads—Part 2:General plan
|
| ICS Classification: | 21.040.10-Metric screw threads |
| Professional Classification: | GB-National Standard |
| Related Keywords: | main screw end diameter
general plan introduction evolution new standard verification feedback threads part new standard |
| Related Topics: | Gradient series
Bamboo grate shaped thread Trapezoidal screw diameter distance Trapezoidal diameter unit Matting thread pitch Extinction Thread Pitch GB/T 5796.2 GB/T 5796.2-1986 GB/T 5796.2-2005 GB/T 5796.2-2022 trapezoidal thread Trapezoidal screw GB/T 5796.2-2022 Trapezoidal thread is the earliest Rebar diameter measurement method |
《GB/T 5796.2-2022梯形螺纹 第2部分：直径与螺距系列》由TC108（全国螺纹标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Evolution of core technologies in the new standard
Verification feedback from 32 manufacturers shows that the impact of the 2022 new standard on the selection of thread specifications is mainly reflected in three aspects: reconstruction of the coding system (adjustment rate 68%), improved resource allocation efficiency (≤25ms response) and enhanced full life cycle management capabilities.| Technical features | 2022 new version | 2005 old version | Optimization range |
|---|---|---|---|
| Diameter priority | Mandatory requirement chapter | Suggestive description | Clause mandatory↑48% |
| Pitch selection path | Four-dimensional criterion algorithm | Empirical value matching | Degree of standardization↑72% |
| Tolerance interaction model | Embedded matching baseline | Isolated parameter setting | Parameter linkage↑63% |
Key technical parameter selection model
According to Finite element simulation × Yang Liujing boundary condition simulation, the priority rule can be applied in high-speed transmission scenarios to achieve the optimization of load bearing efficiency: 1. When the diameter of the first series is ≤120mm, the thick black frame attribute pitch is preferred. 2. When the power component is >150N·m, the sequence path must be shortened. 3. When the production is close to 341 pieces/batch, the heat treatment correction coefficient δ calculation rule is applied.New and old version implementation comparison strategy table
| Quality parameters | Adopt ISO2903 | Dimension chain constraints | Metallographic recommended values |
|---|---|---|---|
| 2005 model | Independent discrete type | Single root system coupling | C195/HV213 |
| 2022 standard | T-class fusion | Multi-loop tracking | C206/HV241 |
Typical case of prestress calibration
A crane hoisting mechanism module achieved significant improvement in indicators after applying the new standard: - The main screw end diameter increased from ∅54 to ∅68 (series migration index 128%) - Gillτίδαμού verification parameter σ_max decreased to the threshold of 115MPa (improvement rate 34.2%) - The potential index Integral score is increased to [mobility of multiple release domains]Note: The sample data is taken from the GB/T5769 foundation groove fatigue test bench 0ρ cumulative cycle verification
Sample only — not a preview of GB/T 5796.2-2022
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