ASME SEC VIII D1 MA APP 7 英语翻译

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2024年5月3日发(作者：)

APPENDIX 附录 7

EXAMINATION OF STEEL CASTINGS钢铸件的检验

7-1 SCOPE

范围

This Appendix covers examination requirements which shall be observed for

all steel castings to which a 100% quality factor is to be applied in

accordance with UG-24(a)(5). Except for applications involving lethal

service, steel castings made to an accepted standard, such as ASME/ANSI

B16.5, are not required to comply with the provisions of this Appendix.

本附录包含的测试要求应依照 UG-24(a)(5) ， 对所有的钢铸件100%的品质因素

进行检测。除了涉及破坏性的应用服务，如按照ASME / ANSI B16.5标准制成的钢铸

件，则不需要符合本附件的规定。

7-2 EXAMINATION TECHNIQUES

检验工艺

Examination techniques shall be carried out in accordance with the

following.

检验工艺应依照如下

(a) Magnetic particle examinations shall be per Appendix 6 except

that acceptance standards shall be as given in 7-3(a)(3) of this Appendix.

磁粉检查应按照附录6，除非验收标准为本附录7-3(a)(3)。

(b) Liquid penetrant examinations shall be per Appendix 8 except that

acceptance standards shall be as given in 7-3(a)(4) of this Appendix.

液体渗透检验应按照附录8，除非验收标准为本附录7-3(a)(4)。

(c) Radiographic examinations shall be per Article 2 of Section V

with acceptance standards as given in 7-3(a)(1) or 7-3(b)(3) of this

Appendix.

放射线检查应按照 第V节第二条 与本附录7-3(a)(1) 或 7-3(b)(3)的验收标准。

(1) A written radiographic examination procedure is not required.

Demonstration of density and pentameter image requirements on production

or technique radiographs shall be considered satisfactory evidence of

compliance with Article 2.

探伤检查程序无需书面记录，依据第2条对生产与工序中对密度论证和五音影像要素的X光

片应被认为是令人满意的证据。

(2) The requirements of T-285 of Article 2 of Section V are to be

used only as a guide. Final acceptance of radiographs shall be based on

the ability to see the prescribed penetrameter image and the specified hole

or the designated wire or a wire penetrameter.

第V节第二条 T-285 的要求只作为一个指南。最终验收的X光片应基于可以清晰的看到规

定的透度计图像和特定孔或指定的线或线性透度计。

(d) Ultrasonic examinations shall be per Article 5 of Section V with

acceptance standards as given in 7- 3(b)(3) of this Appendix.

超声检查应按照第V节第五条与本附录7- 3(b)(3)给出的验收标准。

7-3 EXAMINATION REQUIREMENTS

检验要求

All steel castings shall be examined in accordance with (a) or (b) as

applicable.

所有钢铸件应依照（a）或（b）检查。

(a) All castings having a maximum body thickness less than 4½ in. (114

mm) shall be examined as follows.

所有铸件在最大厚度小于4½ in(英寸).（114毫米）时应如下检查：

(1) All critical sections注释¹shall be radiographed. For castings

having radiographed thicknesses up to 2 in. (51 mm), the radiographs shall

be compared to those in ASTM E 446, Standard Reference Radiographs For Steel

Castings Up To 2 in. (51 mm) in Thickness. The maximum acceptable severity

levels for imperfections shall be as follows:

所有的关键部位¹应进行射线拍摄。为厚度达2英寸（51毫米）. 的铸件进行射线拍

摄，X光片将与 ASTM E 446 进行比对，标准参考<为厚度达2英寸（51毫米）. 的钢

铸件射线拍照>。最大可接受的缺陷严重程度的应如下：

Maximum Severity Level

可接受最大程度

缺陷类别

Thicknesses

厚度

Thicknesses

Imperfection Category <1 in. (

英寸

) 1 in. to < 2 in

A — Gas porosity

气孔

1 2

B — Sand and slag 沙粒和熔渣 2 3

C — Shrinkage 皱缩(four types四种) 1 3

D — Cracks 开裂 0 0

E — Hot tears 裂缝 0 0

F — Inserts 内嵌 0 0

G — Mottling 斑纹 0 0

For castings having radiographed thicknesses from 2 in. to 4½ in. (51 mm

to 114 mm), the radiographs shall be compared to those in ASTM E 186,

Standard Reference Radiographs for Heavy-Walled [2 to 4½ in. (51 mm to 114

mm)] Steel Castings. The maximum acceptable severity levels for

imperfections shall be as follows:

为厚度从2英寸至4½英寸（51毫米至114毫米）. 的铸件进行射线拍摄，X光片

将与 ASTM E 186 进行比对，标准参考<为壁厚从2英寸至4½英寸（51毫米至114

毫米）. 的钢铸件射线拍照>。最大可接受的缺陷严重程度的应如下：

Maximum

Imperfection Category Severity Level

A — Gas porosity 2

B — Sand and slag inclusions 2

C — Shrinkage

Type 1 1

Type 2 2

Type 3 3

D — Cracks 0

E — Hot tear 0

F — Inserts 0

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