标准编号:	GB/T 11640-2001
中文名称:	铝合金无缝气瓶
英文名称:	Seamless aluminium alloy gas cylinder
行业分类:	GB    国家标准
发布机构:	国家质量监督检验检疫总局
发布日期:	2001-1-10
实施日期:	2001-10-1
标准状态:	superseded
被新标准替代:	GB 11640-2011 铝合金无缝气瓶
被替代日期:	2012-12-1
翻译语言:	英文
文件格式:	PDF
中文字符数:	20000 字
翻译价格(元):	1200.0
交付时间:	付款后 1 个工作日

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is revised from GB/T 11640-1989 Seamless Aluminium Alloy Gas Cylinder. Revised content includes: 1. It is recompiled in terms of format and structure according to GB/T 1.1-1993 General Rules for Drafting Standards and GB/T 1.3-1987 Directives for the Work of Standardization--Rules for Drafting Product Standards; 2. Pressure head radius and calculation formula for hydraulic burst pressure in flattening test are modified by reference to ISO 7866: 1999 Refillable Seamless Aluminum Alloy Gas Cylinders-Design, Construction and Testing; 3. The materials (designation: 6061) well known for constructing seamless aluminum alloy gas cylinders are added according to the international standard. 4. Annex A titled "Corrosion Test" is added. 5. Annex B titled “Valve Torque of Aluminum Alloy Gas Cylinder” is added. Annexes A and B of this standard are normative. Annexes C and D of this standard are informative. From the implementation date hereof, this standard replaces GB/T 11640-1989. This standard was proposed by the State Bureau of Quality and Technical Supervision. This standard is under the jurisdiction of National Technical Committee on Gas Cylinders of Standardization Administration of China. Drafting organizations of this standard: Shenyang Kejin New Material Development Corporation, Shanghai High Pressure Vessel Factory, Hua An Machinery Factory. Chief drafters of this standard: Jiang Jiang, Yu Xipei, Chen Hanquan, Xin Huaizhong, Meng Qingquan. Seamless Aluminium Alloy Gas Cylinder 1 Scope This standard specifies the type, parameter, technical requirements, test method, inspection rules, marking, coating, packaging, transportation and storage of the seamless aluminum alloy gas cylinders (hereafter referred to as "the cylinder"). This standard is applicable to the design and manufacture of the portable cylinder: nominal operating pressure: 1~30 MPa; nominal capacity: 0.4~50 L; allowable temperature ≤ 60℃; capable of refilling permanent gas or liquefied gas chemically stable against aluminum alloy. 2 Normative References The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the following standards. GB/T 228-1987 Tensile Test Method for Metal GB/T 230-1991 Metallic Materials—Rockwell Hardness Test GB/T 231-1984 Metallic Materials—Brinell Hardness Test GB/T 232-1999 Metallic Materials—Bend Test GB/T 3191-1998 Extrusion Rods and Bars of Aluminium and Aluminium Alloy GB/T 3246-1982 Aluminium and Aluminium Alloys—Products Inspection Method for Microscopic Structure GB/T 3247-1982 Aluminum and Aluminum Alloys—Inspection Method of Microstructure for Wrought Products GB/T 3880-1997 Aluminium and Aluminium Alloy Rolled Sheet GB/T 4436-1995 Wrought Aluminium and Aluminium Alloy Tubes—Dimensions and Deviations GB/T 4437-1984 Aluminium and Aluminium Alloy Extruded Tubes GB/T 6519-1986 Process for Ultrasonic Inspection of Wrought Aluminum Alloy Products GB/T 6893-1986 Aluminium and Aluminium Alloy Cold Drawn (Rolled) Tubing in Industrial Use GB/T 6987.1~6987.24-1986 Methods for Chemical Analysis of Aluminium and Aluminium Alloys GB 7144-1999 Colored Cylinder Mark for Gases GB 8335-1998 Special Threads for Gas Cylinders GB/T 9251-1997 Methods for Hydrostatic Test of Gas Cylinders GB/T 9252-2001 Method for Cycling Test of Gas Cylinders GB/T 12137-1989 Method for Leakage Test of Gas Cylinders GB/T 13005-1991 Terminology of Gas Cylinders GB/T 13440-1992 Method for Flattening Test of Seamless Gas Cylinders GB 15385-1994 Method for Hydraulic Burst Test of Gas Cylinder 3 Terms and Symbols 3.1 Batch The restricted quantity of cylinders which adopt the same design conditions, nominal diameter as well as design wall thickness and are manufactured with the ingot casting, extruded rod, sheet or pipe in the same furnace and by the same manufacturing method and has been heat treated under the same heat treatment specification. See GB/T 13005 for other terms. 3.2 Symbols Do outside diameter of cylinder, mm; Di inside diameter of cylinder, mm; D′ diameter of circular ring when pressed or tensed, mm; S design wall thickness of the cylinder, mm Sa the minimum wall thickness of the cylinder, mm; Sao measured average wall thickness of cylindrical, mm; Ph hydraulic test pressure, MPa; σb tensile strength guarantee after heat treatment of the cylinder material, MPa; σba measured tensile strength after heat treatment of cylinder material, MPa; σr0.2 specified residual elongation stress guarantee after heat treatment of cylinder material, MPa; σr0.2a actual specified residual elongation stress after heat treatment of cylinder material, MPa; F design stress factor; E elastic modulus of material, MPa; Z correction coefficient; δ5 percentage elongation after fracture, %; Pb calculated hydraulic burst pressure, MPa; N for bend test, it is ratio of diameter of the bending center to measured average wall thickness of specimen; for flattening test, it is ratio of pressure head radius to measured average wall thickness of specimen; Df diameter of the bending center for bend test, mm; Ry pressure head radius for flattening test, mm; T pressure head spacing for flattening test, mm; S1 minimum design thickness of cylinder bottom, mm; H height of ellipsoidal cylinder bottom, mm; r corner radius of dished cylinder bottom, mm; r1 radius of dished cylinder bottom, mm; d circumferential tear length at crevasse, mm. 4 Type and Parameter 4.1 The cylinder shall be as shown in Figure 1 generally. Figure 2 shows the typical structure and major accessories of cylinder. 4.2 Nominal capacity and outside diameter of the cylinder shall be in accordance with those specified in Table 1. Figure 1 Cylinder Type Figure 2 Typical Structure of Cylinder Table 1 Nominal Capacity and Outside Diameter of Cylinder Category Nominal capacity, V, L Allowable deviation of water capacity, % Outside diameter Do, mm Allowable deviation, % Small volume 0.4~2.0 +20 0 60, 70, 89, 108 +1.25 -2.00 2.5~6.3 +10 108, 120, 140 7.0~12.0 0 140, 152, 159,180 Medium volume 13.0~36.0 +5 203, 219 ±1.25 38.0~50.0 0 219, 229, 232 Note: it is allowed to use other values in terms of volume and outside diameter upon the user's request. 5 Technical Requirements 5.1 Materials 5.1.1 Chemical composition of cylinder material shall meet those specified in Table 2. Table 2 Chemical Composition of Cylinder Material % Materials code Element 6061 6351 Si 0.40~0.80 0.70~1.30 Fe ≤0.70 ≤0.50 Cu 0.15~0.40 ≤0.10 Mn ≤0.15 0.40~0.80 Mg 0.80~1.20 0.40~0.80 Cr 0.04~0.35 Zn ≤0.25 ≤0.20 Ti ≤0.15 ≤0.20 Others Single ≤0.05 ≤0.05 Total ≤0.15 ≤0.15 A1 Margin Margin Remarks Preferred 5.1.2 Other aluminium alloy materials with good processing property and higher resistance to corrosion can be used for the cylinder but shall be subjected to corrosion test. See Annex A (Normative) for the corrosion test. 5.1.3 The materials for manufacturing the cylinder must be provided with quality certificate of smelting plant and shall be eligible for reinspection made by the cylinder manufacturer before being put into production. 5.1.4 Ingot casting a) The surface shall be clean and free from mould spot, slag, interlayer, crack and metallic inclusions but the repair marks in smooth transition are allowed. b) Fracture structure shall be compact and free from any defect, like gas cavity, shrink hole, crack and other inclusion, resulting in the influence on mechanical property. c) Segregation shall not happen and the grain size shall be Grade 2 or higher as specified in GB/T 3247-1982. d) 100% ultrasonic test must be carried out axially in two orthogonal directions, axially along ingot casting and perpendicular to ingot casting axis. The maximum flaw echo shall not be larger than that of the reference block. The reference block shall be made of materials of the same chemical composition and the flat-bottom pore diameter is 2mm. 5.1.5 Extruded rod a) It shall comply with GB/T 3191 except chemical composition. b) It must be qualified upon the 100% ultrasonic test carried out in accordance with 5.1.4d). 5.1.6 Plates a) It shall meet the requirements of GB/T 3880 except chemical composition. b) It must be qualified upon the 100% ultrasonic test carried out in accordance with GB/T 6519. 5.1.7 Tubes a) It shall meet the requirements of GB/T 4437 except chemical composition; b) Overall dimension, wall thickness tolerance and quality of the outer and inner surface shall comply with GB/T 4436, GB/T 4437 or GB/T 6893; c) Ingot casting of production tubes must be qualified upon 100% ultrasonic test carried out in accordance with 5.1.4d). 5.2 Design 5.2.1 The calculation of the cylinder wall thickness shall be subject to the hydraulic test pressure which is 1.5 times the nominal operating pressure.

Foreword i 1 Scope 2 Normative References 3 Terms and Symbols 4 Type and Parameter 5 Technical Requirements 6 Test Method 7 Inspection Rules 8 Marking, Coating, Packaging, Transportation and Storage 9 Product Certificate and Batch Inspection Certificate Annex A (Normative) Corrosion Test Annex B (Normative) Valve Torque of Aluminum Alloy Gas Cylinder Annex C (Informative) Recommended Gases Filled in the Cylinder Annex D (Informative) Batch Inspection Certificate for Seamless Aluminum Alloy Gas Cylinders

中华人民共和国国家标准 铝合金无缝气瓶 Seamless aluminium alloy gas cylinder GB/T 11640—2001 代替GB/T 11640—1989 1 范围 本标准规定了铝合金无缝气瓶(以下简称铝瓶)的型式和参数、技术要求、试验方法、检验规则，以及标志、涂敷、包装、运输和储存等要求。 本标准适用于设计、制造公称工作压力为1～30 MPa，公称容积为0.4～50 L，许用温度不超过60 ℃，可重复盛装对铝合金具有化学稳定性的永久气体或液化气体的移动式铝瓶。 2 引用标准 下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。本标准出版时，所示版本均为有效。所有标准都会被修订，使用本标准的各方应探讨使用下列标准最新版本的可能性。 GB/T 228—1987 金属拉伸试验法 GB/T 230—1991 金属洛氏硬度试验方法 GB/T 231—1984 金属布氏硬度试验方法 GB/T 232—1999 金属材料 弯曲试验方法 GB/T 3191—1998 铝及铝合金挤压棒材 GB/T 3246—1 982 铝及铝合金加工制品显微组织检验方法 GB/T 3247—1982铝及铝合金加工制品低倍组织检验方法 GB/T 3880—1997 铝及铝合金轧制板材 GB/T 4436—1995 铝及铝合金管材外形尺寸及允许偏差 GB/T 4437—1984 铝及铝合金热挤压管 GB/T 6519—1986 变形铝合金产品超声波检验方法 GB/T 6893—1986 工业用铝及铝合金拉(轧)制管 GB/T 6987.1～6987.24—1986 铝及铝合金化学分析方法 GB 7144—1999 气瓶颜色标记 GB 8335—1998 气瓶专用螺纹 GB/T 9251—1997气瓶水压试验方法 GB/T 9252—2001 气瓶疲劳试验方法 GB/T 12137—1989 气瓶气密性试验方法 GB/T 13005—1991 气瓶术语 GB/T 13440—1992 无缝气瓶压扁试验方法 GB 15385—1994 气瓶水压爆破试验方法 3术语、符号 3.1 批量 系指采用同一设计条件，具有相同的公称直径、设计壁厚，用同一炉铸锭、挤压棒材、板材或管材，同一制造方法制成，按同一热处理规范进行热处理的铝瓶所限定的数量。 其他术语按GB/T 13005规定执行。 3.2符号 Do 铝瓶筒体外径，mm； Di 铝瓶筒体内径，mm； D′ 受压力(或受张力)时圆环直径，mm； S 铝瓶简体设计壁厚，mm； Sa 铝瓶筒体实测最小壁厚，mm； Sao 铝瓶简体实测平均壁厚，mm； Ph 水压试验压力，MPa； σb 瓶体材料热处理后抗拉强度保证值，MPa； σba 瓶体材料热处理后抗拉强度实测值，MPa； σr0.2 瓶体材料热处理后规定残余伸长应力保证值，MPa； σr0.2a 瓶体材料热处理后规定残余伸长应力实测值，MPa； F 设计应力系数； E 材料弹性模量，MPa； Z 修正系数； δ5 断后伸长率，％； Pb 水压爆破压力计算值，MPa； n 对于弯曲试验，系为弯曲试验的弯心直径与试件实测平均壁厚的比值； 对于压扁试验，系为压扁试验的压头半径与试件实测平均壁厚的比值； Df 弯曲试验的弯心直径，mm； Ry 压扁试验的压头半径，mm； T 压扁试验的压头间距，mm； S1 瓶底设计最小厚度，mm； H 椭球形瓶底底部高度，mm： r 碟形瓶底转角半径，mm； r1 碟形瓶底半径，mm； d 破口环向撕裂长度，mm。 4型式、参数 4.1 瓶体一般应符合图1所示的型式。铝瓶典型结构及主要附件见图2。 4.2铝瓶的公称容积和外径一般应符合表1的规定。 图1 铝瓶瓶体型式 瓶帽 瓶阀 瓶肩 筒体 瓶底 图2 铝瓶典型结构 表1 铝瓶公称容积和外径 类 别 公称容积V，L 水容积允许偏差，％ 外径Do，mm 允许偏差，％ 小容积 0.4～2.0 +20 0 60,70,89,108 +1.25 -2.00 2.5～6.3 +10 108,120,140 7.0～12.0 0 140,152.159,180 中容积 13.0～36.0 +5 203,219 ±1.25 38.0～50.0 0 219,229,232 注：根据用户要求可采用其他规格容积和外径尺寸。 5技术要求 5.1 材料 5.1.1 瓶体材料的化学成分应符合表2的规定。 表2瓶体材料化学成分 ％ 材料代号 元素 6061 6351 Si 0.40～0.80 0.70～1.30 Fe ≤0.70 ≤0.50 Cu 0.15～0.40 ≤0.10 Mn ≤0.1 5 0.40～0.80 Mg 0.80～1.20 0.40～0.80 Cr 0.04～0.35 Zn ≤0.25 ≤0.20 Ti ≤0.15 ≤0.20 其他 单个 ≤0.05 ≤0.05 总和 ≤0.15 ≤0.15 A1 余量 余量 备注 优先采用 5.1.2瓶体允许采用其他具有良好的工艺性能和较高的抗蚀能力的铝合金材料，但应通过腐蚀试验。腐蚀试验见附录A(标准的附录)。 5.1.3用于制造铝瓶的材料必须有冶炼厂的质量合格证明书，并经铝瓶制造厂复验合格后方可投产。 5.1.4 铸锭 a)表面应整洁，不得有霉斑、熔渣、夹层、裂纹及金属夹杂物，但允许有圆滑过渡的修理痕迹。 b)断口组织应致密，不得有气孔、缩孔、裂纹及其他夹杂物等影响力学性能的缺陷。 c)不得有偏析，晶粒度不得低于GB/T 3247—1982所规定的二级。 d)必须进行百分之百超声波检验。检验时应沿着铸锭轴向，且垂直于铸锭轴线，在夹角为90°的两个方向进行。其最大伤波不得大于标准块的伤波。标准块要求用化学成分相同的材料制成，平底孔直径为2 mm。 5.1.5 挤压棒材 a)除化学成分外应符合GB/T 3191的规定。 b)必须按5.1.4d)进行百分之百超声波检验合格。 5.1.6 板材 a)除化学成分外应符合GB/T 3880的规定； b)必须按GB/T 6519进行百分之百超声波检验合格。 5.1.7 管材 a)除化学成分外应符合GB/T 4437的规定； b)外形尺寸、壁厚公差和内外表面质量应不低于GB/T 4436、GB/T 4437或GB/T 6893的规定； c)生产管材的铸锭必须按5.1.4d)进行百分之百超声波检验合格。 5.2设计 5.2.1 瓶体设计壁厚的计算以水压试验压力为准，水压试验压力为公称工作压力的1.5倍。 5.2.2设计计算时采用的规定残余伸长应力不得大于最小抗拉强度的85％。 5.2.3 筒体设计壁厚按式(1)计算后圆整，同时应满足式(2)的要求，且不得小于1.5 mm。 (1) (2) 5.2.4瓶底结构型式 a)半球形[见图3a)]； b)碟形[见图3b)、d)]； c)椭球形[见图3c)、e)]； d)H形[见图3d)、e)]。 5.2.4.1 半球形底厚应不小于简体设计壁厚。 5.2.4.2 碟形底的结构尺寸，应满足下列要求： r≥0.1Di ri≤Di S1≥1.3S 5.2.4.3 椭球形底的结构尺寸，应满足下列要求： S1≥S H≥0.25Di 图3 底部结构图 图3(完) 5.2.5 铝瓶瓶口壁厚，自螺纹沟槽处算起，不得小于简体设计壁厚，且应能承受上阀扭矩，扭矩随螺纹直径、形状等变化，扭矩的大小参照附录B(标准的附录)的规定执行。 5.2.6铝瓶的设计，应进行循环加压疲劳试验，瓶体应能承受循环压力的上限值在公称工作压力条件下80 000次循环或在试验压力条件下12 000次循环而不破坏为合格。试验不合格，该设计不得采用。 5.3 制造 5.3.1 铝瓶制造除应符合本标准规定外，还应符合产品图样和技术条件的规定。 5.3.2铝瓶在制造中，按材料的炉罐、批号进行管理。 5.3.3铝瓶应采用挤压或冲压拉伸成形的制造方法，经收口制成。 5.3.4瓶体允许的制造公差 5.3.4.1 筒体的圆度，在同一截面上测量其最大与最小外径之差，不得超过该截面平均外径的2％。 5.3.4.2简体的直线度，不得超过瓶体长度的2‰。 5.3.5瓶体内外表面要求 5.3.5.1 瓶体内外表面不得有肉眼可见的折叠、夹杂、裂纹、直道、凹坑、麻点、起皮等影响强度的缺陷。 5.3.5.2瓶体外表面要求光滑，对局部凹陷或直道等缺陷允许修磨，但修磨后应圆滑过渡，且不得小于该部位规定的设计壁厚。 5.3.5.3瓶体内表面应清理干净，不得有残留铝屑、油污、附着物或其他杂物。 5.3.6 热处理 5.3.6.1 瓶体应按热处理顺序组批.小容积瓶不大于202只为一个批量，中容积瓶不大于502只为一个批量。 5.3.6.2加工成型的瓶体，必须在各项试验之前逐只进行固溶处理和人工时效处理。瓶体热处理后的力学性能应符合表3的规定。