GB/T 29092-2012Magnesium and magnesium alloy terms and definitions of die-castings defects (English PDF)
镁及镁合金压铸缺陷术语
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2012
Implementation date
October 1, 2013
Scope
GB/T 29092-2012 is the English-translated version of 镁及镁合金压铸缺陷术语.
GB/T 29092-2012 is the Chinese standard "Magnesium and magnesium alloy terms and definitions of die-castings defects". Its scope clause reads: This standard specifies the magnesium and magnesium alloy die-casting products in the definition of common defects, features.
This standard applies to magnesium and magnesium alloy die-casting defect analysis and judgment. Its clauses include definition of defects and features.
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Document preview — GB/T 29092-2012
National Standard of the People's Republic of China
- ICS
- 77.120.20
- Classification
- H 61
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Definition of Defects and features
- 2.1 Deformation distortion
- 2.2 Oversize dimensionbeyondthespecification
- 2.3 Wrong type shift
- 2.4 Core shift
- 2.5 Fleshy metalicprojection
1 Scope
This standard specifies the magnesium and magnesium alloy die-casting products in the definition of common defects, features.
This standard applies to magnesium and magnesium alloy die-casting defect analysis and judgment.
2 Definition of Defects and features
2.1 Deformation distortion
Due to other causes external shape and size of the casting or the occurrence of local deformation of the whole, does not match with the requirements (as shown in Figure 1).
Figure 1 Deformation
2.2 Oversize dimensionbeyondthespecification
Refers to the range of dimensions exceeds the tolerances allowed.
2.3 Wrong type shift
In the casting die casting process, due to the stationary die and the movable die are staggered in the parting line, relative displacement occurs.
2.4 Core shift
Due to the location and design of the core in the die-casting mold cavity formed does not meet the requirements of the position shift.
2.5 Fleshy metalicprojection
Due to the inner wall of the mold cavity recess lead to an irregular shape of the projecting portion casting surface (Figure 2).
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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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