10297989_0 welding supervisor-焊接监督员-EN.docx

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1、10297989005UEBHERR - Work InstructionItemcodeVersion1/4Welding supervisor1. Scope and purposeThis LIEBHERR - Standard applies to the Liebherr Machinery (Xuzhou) Co., Ltd. andregulates the duties and responsibilities of the welding supervisor.2. Applicable DocumentsISO 3834-2 Quality requirements for

2、 fusion welding of metallic Materials-Part 2: Comprehensive quality requirementsISO 14731 Welding coordination - Tasks and responsibilities10298009 Liebherr Standard: Requirements for suppliers of steel components10298002 Liebherr Standard: Internal Welding Guidelines3. Requirements / DescriptionThe

3、 following points must be considered by the relevant person in charge into account.3.1 Technical review of modifications and new designsa) The applicable standards and regulations;b) The definition of the base materials;c) Location of the weld joint in accordance with the design requirements;d) Qual

4、ity requirements for welding seams;e) Location and accessibility, including the accessibility for inspection, non-destructive testing;f) Selecting joint preparation and installation of any weld pool.3.2 SubcontractingFor the welding production the suitability of a subcontractor by Liebherr-norm10298

5、009 must be ensured.Liebherr CLX -SpecificationDo not copy, reproduce or distribute this document without written consent from CLXElectronically generated Document and valid without signature gultig.3.3 Technical welding personnela) The qualification of welders and operators must be present.b) Class

6、ification by qualified personnel only.3.4 FacilitiesSuitability and provision of welding and ancillary equipment, the pros andReheating and their maintenance.3.5 Planning and implementationa) Reference to existing Liebherr standards for cutting, stapling and welding.b) order in which the welds are t

7、o be executed, protection against environmentalinfluences such as eg: wind, temperature and rainfall influence.3.6 Welding Procedures QualificationWelding procedures shall be qualified by welding procedure qualification and annuallyconfirmed by work samples.3.7 Welding ProcedurePreparation of weldin

8、g procedure specifications (WPS).3.8 Liebherr standardsLiebherr standards in the field of production must be checked.3.9 Welding consumablesa) suitability, delivery, type of inspectionb) Storage and handling of welding consumables.3.10 Materialsa) Requirements for the delivery and the type of inspec

9、tionb) Storagec) Traceability3.11 Surveillance prior to weldinga) identity of the parent materialsb) identity of welding consumablesc) weld preparation (eg shape and dimensions);d) assembling, clamping and stapling;e) Any special requirements in the welding procedure specification (e.g prevention of

10、distortion);f) whether the working conditions for welding, including environment.3.12 Monitoring and testing during weldingWelding parameters (eg welding current, arc voltage, welding speed);Preheat / interpass temperature, cleaning and shape of the beads and layers of weldmetal; pinpointing the roo

11、t, welding sequence, proper use and handling of weldingconsumables, Compliance with the operations it sweat Directive 10298002, allIntermediate examinations (eg, dimensional checks).3.13 Testing after weldinga) Visual inspections (eg completeness of the weld, weld dimensions, shape);b) Form, shape,

12、tolerances and dimensions of the component;c) Results and reports about the treatments after welding (eg heat treatment);d) Other non-destructive tests.3.14 Heat treatment after weldingFor the heat treatment, the design according to the specifications must be considered.3.15 Non-compliance and corre

13、ctive actionIn case of non compliance of the weld design to the specifications must correctiveaction required, such as Block of the assemblies, weld repairs and their revaluation orwaivers are initiated.3.16 Calibration of measuring and testing equipmentEnsuring the calibration of measuring and test

14、ing equipment.3.17 Identification and traceabilityEnsuring identification of the modules by means of welders tample, using the properwelding consumables.3.18 Quality RecordsAnd archiving of quality records / reports, including subcontracted activities.UEBHERR Work InstructionItemcode 10297989Version

15、 0053.19 Responsibilities of relevant departmentsNo.Work ItemCoordinatorSalesTechnicalQCPurchaseProductionPlanningProductionControllingEquipmentWarehouse1Requirements reviewAAAAAA2Technical reviewAA*AAAA3Sub-contractingAAA4Welder and welding operatorsA*5Welding Coordinator6Inspection personnelAA1Production and testing equipmentAA*AA8Description of equipmentAA9Equipment mainten