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English to Chinese: Specification for Filler Metal Standard Sizes, Packaging, and Physical Attributes General field: Tech/Engineering Detailed field: Manufacturing
Source text - English Specification for Filler Metal Standard Sizes, Packaging, and Physical Attributes
1. Scope
1.1 This specification prescribes requirements for stan- dard sizes and packages of welding filler metals and their physical attributes, such as product appearance and identification.
1.2 This specification applies to covered electrodes with both solid and tubular core wires; bare solid and tubular wires on spools, coils, and drums, or in straight lengths; and solid and sintered strip electrodes. It applies to all fusion welding processes, except brazing, braze welding, and thermal spraying, or granular metallic or mineral products, such as submerged arc fluxes, or other such products used in fusion welding processes.
1.3 Safety and health issues and concerns are beyond the scope of this standard and are, therefore, not fully addressed herein. Safety and health information is avail- able from other sources, including, but not limited to, ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes, and applicable federal and state regulations.
1.4 This specification makes use of both U.S. Customary Units and the International System of Units (SI). The measurements are not exact equivalents; therefore, each system must be used independently of the other without combining in any way. The specification with the desig- nation A5.02 uses U.S. Customary Units. The specifica- tion A5.02M uses SI Units. The latter are shown within brackets [ ] or in appropriate columns in tables and fig- ures. Standard dimensions based on either system may be used for sizing of filler metal or packaging.
2. Normative References
The following ANSI1 standard is referenced in the normative sections of this document.
1. ANSI Z49.1 Safety in Welding, Cutting, and Allied Processes
The following ISO2 standard is referenced in the manda- tory sections of this document.
1. ISO 544 Welding consumables — Technical deliv- ery conditions for welding filler materials — Type of product, dimensions, tolerances and markings.
3. Covered Electrodes
3.1 Standard Sizes and Lengths. Standard sizes (diam- eter of the core wire) and lengths of electrodes are shown in Table 1.
3.1.1 The diameter of the core wire shall not vary more than ±0.002 in [±0.05 mm] from the diameter specified. The length shall not vary more than ±1/4 in [±10 mm] from that specified.
3.2 Core Wire and Covering. The core wire and cover- ing shall be free of defects that would interfere with the uniform deposition of the electrode. The core and cover- ing shall be concentric to the extent that the maximum core-plus-one-covering dimension shall not exceed the minimum core-plus-one-covering dimension by more than:
1. 7% of the mean dimension in sizes of 3/32 in [2.5 mm] and smaller,
2. 5% of the mean dimension in sizes larger than 3/32 in [2.5 mm] and smaller than 3/16 in [5 mm], and
3. 4% of the mean dimension in sizes 3/16 in [5 mm] and larger.
Concentricity may be measured by any suitable means.
1 ANSI Z49.1 is published by the American Welding Society, 550 N.W. LeJeune Road, Miami, FL 33126.
2 ISO standards are published by the International Organization for Standardization, 1, rue de Varembé, Case postale 56, CH- 1211 Geneva 20, Switzerland.
Table 1
Standard Sizes and Lengths of Covered Electrodes
Standard Size Standard Lengtha, b
in mm in mm
[65 mm] of the grip end of the electrode. The prefix letter E in the classification may be omitted from the imprint.
3.4.2 The numbers and letters of the imprint shall be of bold block type of a size large enough to be legible.
3.4.3 The ink used for imprinting shall provide suffi- cient contrast with the electrode covering so that, in nor-
mal use, the numbers and letters are legible both before
1/16c
5/64c
3/32c
1/8
5/32
3/16
7/32c
1/4c
5/16c
1.6c
2.0c
2.4c, d
2.5c
3.2
4.0
4.8d
5.0
5.6c, d
6.0
6.4c
8.0c
9
9 or 12
9, 12, or 14
—
12, 14, or 18
14 or 18
14 or 18
14 or 18
14 or 18
14 or 18
14 or 18
18
230
230 or 300
230, 300, or 350
300 or 350
300, 350, or 450
350 or 450
350 or 450
350 or 450
350 or 450
350 or 450
450
450
and after welding.
3.4.4 When an electrode is classified as meeting the requirements of A5.X and A5.XM, both electrode desig- nations shall be applied.
3.4.5 If allowed by the specific A5 specification, in lieu of imprinting, electrodes may be identified by:
1. Attaching securely to the bare grip end of each electrode a tag bearing the classification number, or
a Lengths other than these shall be as agreed upon between purchaser and supplier.
b In all cases, end-gripped electrodes are standard.
c These diameters are not standard sizes for all classifications.
d These metric sizes are not shown in ISO 544.
3.3 Exposed Core
3.3.1 The grip end of each electrode shall be bare (free of covering) for a distance of not less than 1/2 in [12 mm] nor more than 1-1/4 in [30 mm] for electrodes 5/32 in [4.0 mm] and smaller, and not less than 3/4 in [20 mm] nor more than 1-1/2 in [40 mm] for electrodes 3/16 in [5 mm] and larger, to provide for electrical contact with the electrode holder.
3.3.2 The arc end of each electrode shall be suffi- ciently conductive, and the covering sufficiently tapered, to permit easy striking of the arc. The length of the con- ductive portion (measured from the end of the core wire to the location where the full cross section of the cover- ing is obtained) shall not exceed 1/8 in [3 mm] or the diameter of the core wire, whichever is less. Electrodes with chipped coverings near the arc end, baring the core wire no more than the lesser of 1/4 in [6 mm] or twice the diameter of the core wire, meet the requirements of this specification provided no chip uncovers more than 50% of the circumference of the core.
3.4 Electrode Identification. All electrodes shall be identified as follows:
3.4.1 At least one imprint of the electrode designation (classification plus any optional designators) shall be applied to the electrode covering starting within 2-1/2 in
2. Embossing the classification number on the bare grip end of each electrode. In this case a slight flattening of the grip end will be permitted in the area of the embossing.
3.5 Packaging
3.5.1 Electrodes shall be suitably packaged to protect them from damage during shipment and storage under normal conditions.
3.5.2 Standard package weights shall be as agreed upon between purchaser and supplier.
3.5.3 Hermetically Sealed Containers. When speci- fied for one or more classifications, such as low hydro- gen types requiring protection against atmospheric moisture absorption during shipment and storage, elec- trodes shall be packaged in one of the following manners.
3.5.3.1 Rigid Metal Package. The container may be of either steel or aluminum. Each steel container shall have its sides lock-seamed and soldered or seam welded and the top and bottom mechanically seamed containing a suitable organic sealant. Aluminum containers shall be tubes formed in two sections, one flared slightly for a friction fit and the closure seam shall be sealed with a suitable pressure sensitive tape. Metal containers after loading at ambient pressure and sealing shall be capable of passing the leak test as follows:
Unit containers shall be immersed in water that is at a temperature of at least 50°F [10°C] above that of the packaged material (room temperature). The container shall be immersed so that the surface under observation is 1 in [25 mm] below the water surface and the greatest basic dimension of the container is parallel to the surface of the water. A leaker is indicated by a steady stream of
air bubbles emanating from the container. A container with a stream that lasts for 30 seconds or more does not meet the requirements of this specification.
3.5.3.2 Vacuum Package. High density plastic pouches laminated with a suitable foil vapor barrier shall be heat sealed after filling and evacuating. The pouches shall be overpacked with an outer container to protect it from damage that will cause loss of vacuum. Packages which show the contents to be loose within the pouch do not meet the requirements of this specification.
3.5.3.3 Other Package Construction As agreed upon between purchaser and supplier, alternate packag- ing for protection of electrode coverings from absorption of moisture in excess of that specified by the classifica- tion shall be demonstrated by suitable tests, such as those described above.
3.6 Marking of Packages
3.6.1 The following product information (as a mini- mum) shall be legibly marked on the outside of each unit package:
1. AWS specification and classification designations along with applicable optional designators (year of issue may be excluded)
2. Supplier’s name and trade designation
3. Size and net weight
4. Lot, control, or heat number
3.6.2 The appropriate precautionary information,3 as given in ANSI Z49.1, latest edition, (as a minimum) or its equivalent, shall be prominently displayed in legible print on all packages of electrodes, including individual unit packages enclosed within a larger package.
4. Bare Solid and Tubular Electrodes and Rods
4.1 Standard Sizes and Shapes
4.2.1 Standard sizes of filler metal (except strip elec- trodes) and straight lengths of rods and their tolerances are shown in Table 2.
4.2.2 Standard sizes for strip electrodes in coils are shown in Table 3.
3 Typical examples of “warning labels” are shown in figures in ANSI Z49.1 for some common or specific consumables used with certain processes.
4.2 Finish and Uniformity
4.2.1 All filler metal shall have a smooth finish that is free from slivers, depressions, scratches, scale, seams, laps (exclusive of the longitudinal joint in flux cored or metal cored filler metal), and foreign matter that would adversely affect the welding characteristics or the prop- erties of the weld metal.
4.2.2 Each continuous length of filler metal shall be from a single heat or lot of material, and welds, when present, shall have been made so as not to interfere with the uniform, uninterrupted feeding of the filler metal on automatic and semiautomatic equipment.
4.2.3 The core ingredients in flux cored and metal cored filler metal shall be distributed with sufficient uni- formity throughout the length of the electrode so as not to adversely affect the performance of the electrode or the properties of the weld metal or deposited weld overlay.
4.2.4 A suitable protective coating may be applied to any filler metal except as specifically restricted by the classification in the filler metal specification.
4.3 Packaging
4.3.1 Filler metals shall be suitably packaged to pro- tect them from damage during shipment and storage under normal conditions.
4.3.2 Standard package forms are straight lengths, coils with support, coils without support, spools, and drums. Standard package dimensions for each form are given in Table 4. Dimensions for standard spools are given in Figures 1A through 1D. Package forms and sizes other than these shall be as agreed upon between purchaser and supplier.
4.3.3 The liners in coils with support shall be designed and constructed to prevent distortion of the coil during normal handling and use, and shall be clean and dry enough to maintain the cleanliness of the filler metal.
4.3.4 Spools shall be designed and constructed to pre- vent distortion of the spool and the filler metal during normal handling and use, and shall be clean and dry enough to maintain the cleanliness of the filler metal.
4.3.5 As agreed upon between purchaser and supplier, alternate packaging for protection of filler metals from environmental or other conditions may be specified. This packaging may include, but not be limited to, hermeti- cally sealed packaging as specified in 3.5.3.
I’ve been working as a full-time translator in Qingdao, a coastal summer resort in Shandong Province in northern China, since 2001. Over the last 12 years, I have translated millions of words from Chinese into English, and visa versa. These translations have included technical, commercial and legal documents relating to a broad spectrum of industries and sectors. Some of my translations were proofread and polished up by the well-versed natives from the U.S., the U.K. and Canada. My major clients include Haier, Hisense, CSR Sifang Locomotive, Maersk, Limitless, Dell and Becker Acroma among many other companies based in Qingdao. I am proud to say there has been no record of nonpayment for my work over the past years.
Education Background
January 1983: graduated from Yancheng College of Textile Technology with a major in cotton mill engineering;
June 1988: earned a diploma from Nanjing Normal University and Jiangsu Higher Education Commission for Self-taught Students with an English major.
Working Experience
2001-2009: English translator with the government-affiliated Translation Office in Qingdao, Shandong.
1984-2000: Technician and translator with Marzoli Dongtai Textile Machinery and its forerunner Dongtai Textile Machinery Works in Dongtai, Jiangsu
1983-1984: Technician at Dongtai Cotton Mill in Dongtai, Jiangsu
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