GB/T 39314-2020 in English
VALIDGeneral technical directives for aluminum alloy plaster investment casting
- Issued on:2020-11-19
- Implemented on:2021-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$120.00
$117.00
$117.00
| Standard No: | GB/T 39314-2020 |
| Document status: | VALID |
| Title in English: | General technical directives for aluminum alloy plaster investment casting |
| Title in Chinese: | 铝合金石膏型铸造通用技术导则 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-11-19 |
| Implemented on: | 2021-06-01 |
| ICS Classification: | 77.120.10-Aluminium and aluminium alloys |
| Chinese Classification: | J31-Casting |
| Professional Classification: | GB-National Standard |
| Related Keywords: | aluminum alloy gypsum mold casting
technical parameters casting qualification rate technical directives technical requirements |
| Related Topics: | Gypsum detection
Gypsum detection Aluminum alloy casting process Large aluminum alloy casting Aluminum casting mold Aluminum Alloy Casting Aluminum Alloy Casting Tolerances Cast Aluminum GBT39314 GB/T 39314-2020 Heavy Metal Technical Guidelines Aluminum alloy keel technology Aluminum alloy casting model |
《GB/T 39314-2020铝合金石膏型铸造通用技术导则》由TC54（全国铸造标准化技术委员会）归口，TC54SC3（全国铸造标准化技术委员会铸造有色合金分会）执行，主管部门为国家标准化管理委员会。
Introduction
Interpretation of the core content of the standard
This standard systematically specifies the technical requirements for the entire process of aluminum alloy gypsum mold casting, with the key points including:
- Gypsum casting material components and proportions (Table 1)
- Vacuum mixing process parameters (Table 2)
- Casting mold roasting temperature curve (Figure 3)
- Pouring equipment technical specifications (Figure 4)
Comparative analysis of key technologies
| Technical indicators | Conventional casting | Gypsum mold casting | Advantage comparison |
|---|---|---|---|
| Surface roughness (μm) | Ra12.5-25 | Ra3.2-6.3 | Increase by 300% |
| Minimum wall thickness (mm) | ≥2.0 | ≥0.8 | Thinning by 60% |
| Dimensional tolerance (CT) | CT8-10 | CT4-6 | Accuracy increased by 2 levels |
Key points of process implementation
Typical application case
A certain aviation component adopts Plaster mold vacuum pouring process:
- Turbine blade profile error reduced from ±0.15mm to ±0.05mm
- Casting qualification rate increased from 82% to 96%
- Post-processing hours reduced by 40%
Standard Evolution Analysis
Compared with the old version of HB/Z 220.6-2005, this version has the following major improvements:
- Added Environmental protection requirements for waste gypsum mold treatment (Chapter 9)
- Refine the technical parameters of vacuum mixing equipment (4.4.3)
- Supplement the application specifications of glass fiber reinforcement
Implementation recommendations
Key points of quality control
- Slurry preparation: strictly control the water temperature environment at 18-25℃
- Dewaxing control: roasting temperature rises in steps (refer to the curve in Figure 3)
- Pouring parameters: vacuum degree ≥-0.08MPa remains stable
Sample only — not a preview of GB/T 39314-2020
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 26654-2011 in English
Casting magnesium alloys for automobile wheels
2011-06-16 -
GB/T 40809-2021 in English
Casting aluminum alloys—Process specification for semisolid rheo-diecasting forming
2021-10-11 -
GB/T 26649-2025 in English
Magnesium alloy castings for automobile wheels
2025-08-29
