標準編號:	GB/T 11640-2001
中文名稱:	鋁合金無縫氣瓶
英文名稱:	Seamless aluminium alloy gas cylinder
行業分類:	GB    國家標準
發布機構:	國家質量監督檢驗檢疫總局
發布日期:	2001-1-10
實施日期:	2001-10-1
標準狀態:	superseded
被新標準替代:	GB 11640-2011 鋁合金無縫氣瓶
被替代日期:	2012-12-1
翻譯語言:	英文
文件格式:	PDF
中文字符數:	20000 字
翻譯價格(元):	1200.0
交付時間:	付款后 1 個工作日

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

中華人民共和國國家標準 鋁合金無縫氣瓶 Seamless aluminium alloy gas cylinder GB/T 11640—2001 代替GB/T 11640—1989 1 范圍 本標準規定了鋁合金無縫氣瓶(以下簡稱鋁瓶)的型式和參數、技術要求、試驗方法、檢驗規則，以及標志、涂敷、包裝、運輸和儲存等要求。 本標準適用于設計、制造公稱工作壓力為1～30 MPa，公稱容積為0.4～50 L，許用溫度不超過60 ℃，可重復盛裝對鋁合金具有化學穩定性的永久氣體或液化氣體的移動式鋁瓶。 2 引用標準 下列標準所包含的條文，通過在本標準中引用而構成為本標準的條文。本標準出版時，所示版本均為有效。所有標準都會被修訂，使用本標準的各方應探討使用下列標準最新版本的可能性。 GB/T 228—1987 金屬拉伸試驗法 GB/T 230—1991 金屬洛氏硬度試驗方法 GB/T 231—1984 金屬布氏硬度試驗方法 GB/T 232—1999 金屬材料 彎曲試驗方法 GB/T 3191—1998 鋁及鋁合金擠壓棒材 GB/T 3246—1 982 鋁及鋁合金加工制品顯微組織檢驗方法 GB/T 3247—1982鋁及鋁合金加工制品低倍組織檢驗方法 GB/T 3880—1997 鋁及鋁合金軋制板材 GB/T 4436—1995 鋁及鋁合金管材外形尺寸及允許偏差 GB/T 4437—1984 鋁及鋁合金熱擠壓管 GB/T 6519—1986 變形鋁合金產品超聲波檢驗方法 GB/T 6893—1986 工業用鋁及鋁合金拉(軋)制管 GB/T 6987.1～6987.24—1986 鋁及鋁合金化學分析方法 GB 7144—1999 氣瓶顏色標記 GB 8335—1998 氣瓶專用螺紋 GB/T 9251—1997氣瓶水壓試驗方法 GB/T 9252—2001 氣瓶疲勞試驗方法 GB/T 12137—1989 氣瓶氣密性試驗方法 GB/T 13005—1991 氣瓶術語 GB/T 13440—1992 無縫氣瓶壓扁試驗方法 GB 15385—1994 氣瓶水壓爆破試驗方法 3術語、符號 3.1 批量 系指采用同一設計條件，具有相同的公稱直徑、設計壁厚，用同一爐鑄錠、擠壓棒材、板材或管材，同一制造方法制成，按同一熱處理規范進行熱處理的鋁瓶所限定的數量。 其他術語按GB/T 13005規定執行。 3.2符號 Do 鋁瓶筒體外徑，mm； Di 鋁瓶筒體內徑，mm； D′ 受壓力(或受張力)時圓環直徑，mm； S 鋁瓶簡體設計壁厚，mm； Sa 鋁瓶筒體實測最小壁厚，mm； Sao 鋁瓶簡體實測平均壁厚，mm； Ph 水壓試驗壓力，MPa； σb 瓶體材料熱處理后抗拉強度保證值，MPa； σba 瓶體材料熱處理后抗拉強度實測值，MPa； σr0.2 瓶體材料熱處理后規定殘余伸長應力保證值，MPa； σr0.2a 瓶體材料熱處理后規定殘余伸長應力實測值，MPa； F 設計應力系數； E 材料彈性模量，MPa； Z 修正系數； δ5 斷后伸長率，％； Pb 水壓爆破壓力計算值，MPa； n 對于彎曲試驗，系為彎曲試驗的彎心直徑與試件實測平均壁厚的比值； 對于壓扁試驗，系為壓扁試驗的壓頭半徑與試件實測平均壁厚的比值； Df 彎曲試驗的彎心直徑，mm； Ry 壓扁試驗的壓頭半徑，mm； T 壓扁試驗的壓頭間距，mm； S1 瓶底設計最小厚度，mm； H 橢球形瓶底底部高度，mm： r 碟形瓶底轉角半徑，mm； r1 碟形瓶底半徑，mm； d 破口環向撕裂長度，mm。 4型式、參數 4.1 瓶體一般應符合圖1所示的型式。鋁瓶典型結構及主要附件見圖2。 4.2鋁瓶的公稱容積和外徑一般應符合表1的規定。 圖1 鋁瓶瓶體型式 瓶帽 瓶閥 瓶肩 筒體 瓶底 圖2 鋁瓶典型結構 表1 鋁瓶公稱容積和外徑 類 別 公稱容積V，L 水容積允許偏差，％ 外徑Do，mm 允許偏差，％ 小容積 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 中容積 13.0～36.0 +5 203,219 ±1.25 38.0～50.0 0 219,229,232 注：根據用戶要求可采用其他規格容積和外徑尺寸。 5技術要求 5.1 材料 5.1.1 瓶體材料的化學成分應符合表2的規定。 表2瓶體材料化學成分 ％ 材料代號 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 單個 ≤0.05 ≤0.05 總和 ≤0.15 ≤0.15 A1 余量 余量 備注 優先采用 5.1.2瓶體允許采用其他具有良好的工藝性能和較高的抗蝕能力的鋁合金材料，但應通過腐蝕試驗。腐蝕試驗見附錄A(標準的附錄)。 5.1.3用于制造鋁瓶的材料必須有冶煉廠的質量合格證明書，并經鋁瓶制造廠復驗合格后方可投產。 5.1.4 鑄錠 a)表面應整潔，不得有霉斑、熔渣、夾層、裂紋及金屬夾雜物，但允許有圓滑過渡的修理痕跡。 b)斷口組織應致密，不得有氣孔、縮孔、裂紋及其他夾雜物等影響力學性能的缺陷。 c)不得有偏析，晶粒度不得低于GB/T 3247—1982所規定的二級。 d)必須進行百分之百超聲波檢驗。檢驗時應沿著鑄錠軸向，且垂直于鑄錠軸線，在夾角為90°的兩個方向進行。其最大傷波不得大于標準塊的傷波。標準塊要求用化學成分相同的材料制成，平底孔直徑為2 mm。 5.1.5 擠壓棒材 a)除化學成分外應符合GB/T 3191的規定。 b)必須按5.1.4d)進行百分之百超聲波檢驗合格。 5.1.6 板材 a)除化學成分外應符合GB/T 3880的規定； b)必須按GB/T 6519進行百分之百超聲波檢驗合格。 5.1.7 管材 a)除化學成分外應符合GB/T 4437的規定； b)外形尺寸、壁厚公差和內外表面質量應不低于GB/T 4436、GB/T 4437或GB/T 6893的規定； c)生產管材的鑄錠必須按5.1.4d)進行百分之百超聲波檢驗合格。 5.2設計 5.2.1 瓶體設計壁厚的計算以水壓試驗壓力為準，水壓試驗壓力為公稱工作壓力的1.5倍。 5.2.2設計計算時采用的規定殘余伸長應力不得大于最小抗拉強度的85％。 5.2.3 筒體設計壁厚按式(1)計算后圓整，同時應滿足式(2)的要求，且不得小于1.5 mm。 (1) (2) 5.2.4瓶底結構型式 a)半球形[見圖3a)]； b)碟形[見圖3b)、d)]； c)橢球形[見圖3c)、e)]； d)H形[見圖3d)、e)]。 5.2.4.1 半球形底厚應不小于簡體設計壁厚。 5.2.4.2 碟形底的結構尺寸，應滿足下列要求： r≥0.1Di ri≤Di S1≥1.3S 5.2.4.3 橢球形底的結構尺寸，應滿足下列要求： S1≥S H≥0.25Di 圖3 底部結構圖 圖3(完) 5.2.5 鋁瓶瓶口壁厚，自螺紋溝槽處算起，不得小于簡體設計壁厚，且應能承受上閥扭矩，扭矩隨螺紋直徑、形狀等變化，扭矩的大小參照附錄B(標準的附錄)的規定執行。 5.2.6鋁瓶的設計，應進行循環加壓疲勞試驗，瓶體應能承受循環壓力的上限值在公稱工作壓力條件下80 000次循環或在試驗壓力條件下12 000次循環而不破壞為合格。試驗不合格，該設計不得采用。 5.3 制造 5.3.1 鋁瓶制造除應符合本標準規定外，還應符合產品圖樣和技術條件的規定。 5.3.2鋁瓶在制造中，按材料的爐罐、批號進行管理。 5.3.3鋁瓶應采用擠壓或沖壓拉伸成形的制造方法，經收口制成。 5.3.4瓶體允許的制造公差 5.3.4.1 筒體的圓度，在同一截面上測量其最大與最小外徑之差，不得超過該截面平均外徑的2％。 5.3.4.2簡體的直線度，不得超過瓶體長度的2‰。 5.3.5瓶體內外表面要求 5.3.5.1 瓶體內外表面不得有肉眼可見的折疊、夾雜、裂紋、直道、凹坑、麻點、起皮等影響強度的缺陷。 5.3.5.2瓶體外表面要求光滑，對局部凹陷或直道等缺陷允許修磨，但修磨后應圓滑過渡，且不得小于該部位規定的設計壁厚。 5.3.5.3瓶體內表面應清理干凈，不得有殘留鋁屑、油污、附著物或其他雜物。 5.3.6 熱處理 5.3.6.1 瓶體應按熱處理順序組批.小容積瓶不大于202只為一個批量，中容積瓶不大于502只為一個批量。 5.3.6.2加工成型的瓶體，必須在各項試驗之前逐只進行固溶處理和人工時效處理。瓶體熱處理后的力學性能應符合表3的規定。