船检检验教程(船体) 教学课件PPT.ppt
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1、April 2008,Classification Survey during Construction (Hull),Part 1 Hull Survey System Part 2 Survey on Site,Hull Survey System Outline,QC System of Shipyard,General Manager,Manager for Hull,Surveyor in Charge,Managers in HLD, EQD and SVD,Project Team,Rules, Guidance ClassNK Instructions,Indirect sur
2、vey & QC investigation,Direct survey,Inspection Record,New Building and Project Team Stage,Plan approval Rules Part B 2.1.1,Investigation of QC condition Rules Part C 1.1.17-1 and Part M 1.1-2(1),Meeting with persons concerned (owner, shipyard, etc.) *,Survey during assembly process and block inspec
3、tion Rules Part B 2.1.4,Survey in building berth Rules Part B 2.1.4,Survey after launching Rules Part B 2.1.4, 2.3.1 and 2.3.2,Managers in charge in HLD, EQD and SVD,GM, Manager (H) and surveyors in charge in service site,Project team,Class entry application,Work commence,Lay down,Launching,Delivery
4、,* Meeting to be held any time during each stage,Flow of Plan/Drawing Approval,Local Office,Head Office,Shipyard,(1), (2), (3),(1)Plan/Drawing approved by HO (Examined and approved by HO and return to shipyard) (2)Plan/Drawing examined by HO (Examined by HO and return to shipyard with stamp of EXAMI
5、NED) (3)Plan/Drawing reference for HO (Reference for HO and return to local office except calculation sheet) (4)Plan/Drawing approved by local office (Examined and approved by local office and return to shipyard) (5)Plan/drawing reference for local office (Reference for local office and no return to
6、 shipyard),(1), (2), (3), (4), (5),(1), (2), (3),(1), (2), (4),Management of Survey Attendance and Investigation of Quality Management,Survey attendance Management of daily survey Investigation of Quality Management system of shipyard Periodical Investigation Annual Investigation Occasional Investig
7、ation Site Execution Investigation Monthly Investigation Patrol Survey,Form IR,Form IR(H),Form IR (H-A948),Form IR(H) Attachment,Form B,Record A,Form S,Periodical Investigation,Timing (a) When the shipyard builds a ship being classed with NK for the first time (b) When about 5 years have passed from
8、 the previous periodical investigation (c) When the size of ship being classed with NK breaks through 10,000, 30,000 or 100,000 GT for the first time (d) When the shipyard re-starts building a ship being classed with NK after a blanc period of more than 2 years Contents Facilities and features of co
9、nstruction, number of welders, system and details for quality control, etc. (see Record A) Record Record A to be prepared,Annual Investigation,Timing When about 1 year passed from the last periodical investigation or annual investigation Contents About 20% of the contents for periodical investigatio
10、n Recors Record A to be prepared,Occasional Investigation,Timing When organization or layout of shipyard which have influence on quality control is changed When a serious deficiency is found during regular survey (Form S to be prepared) When shipyard builds a ship by using special production process
11、 or special material for the first time When deemed necessary by the society Contents Items deemed necessary in relation to the above,Monthly Investigation,Timing Notwithstanding its naming, the investigation should be done during daily survey. Report may be done 1 or 2 monthly. Contents Identificat
12、ion of steel, welding procedure, control of welding materials, observance of the quality standard, etc. are to be investigated at each stage such as in-shop fabrication, panel fabrication, block assembly and block loading Record Record B to be prepared,Patrol Survey,The purpose of “patrol survey” is
13、 to grasp the actual circumstance of quality control of the shipyard through an investigation of following points during the fabrication (it may be impossible at block inspection) Welding procedure (temporary fitting, edge preparation, position, back gouging, sequence, welders qualification, etc.) H
14、andling of defective work (material, size, accuracy of fitting, record, etc.) Surveyor in charge execute a patrol survey at any time of following occasions, while he follows an application submitted by the shipyard for usual survey To pass through the work shop on his way to and from the place of us
15、ual survey, To execute in his spare time of survey, etc. The results of patrol survey should be periodically reported to the General Manager as the monthly report of investigation of QC of the shipyard Surveyor should review his attendance of survey, such as timing and method, according to the resul
16、ts of the investigation of QC of the shipyard,Background of Patrol Survey,The presence of the surveyor is required at the following stages of the work in relation to hull and equipment (extract): (4) When designated by the society during shop work or sub- assembly. (17) When deemed necessary by the
17、society. Rules, Part B, Chapter 2, 2.1.4-1 For the effectiveness of the control of the welding works to be carried out by the manufacturer, the society is to confirm the condition during welding works at an appropriate interval accepted by the surveyor, when deemed necessary. In this case, the manuf
18、acturer is to give the convenience to the surveyor and to permit the surveyor to enter all relevant areas of the yard. Rules, Part M, Chapter 1, 1.3.2-1,Example of Shipyard Layout,Acceptance Inspection Block Inspection Block erection, Fittings, etc. Stability experiment, Function Tests Seek for the
19、opportunity of patrol survey,Vertical Inspection of Welding Work,(for each welding work) Material control Edge preparation Fitting accuracy after tack welding Misalignment between important members Fitting of backing material and run-off-tab Consideration for welding environment Pre-heating etc. Wel
20、ding sequence Execution of welding Back chipping Removing jigs etc.,(for shipyard) Approval of welding procedure Welders qualification,(during welding work) Designated survey Rules Part B and M Patrol survey,(for each ship) Approval of welding application plan and NDT plan,(after welding work) Visua
21、l inspection Non-destructive inspection,Investigation of QC condition, etc. Examination of document,Part 2 Survey on Site,1 Acceptance inspection 2 Welding 3 Shop Work and Sub-Assembly 4 Block inspection 5 Block joining on building berth 6 Rudder 7 Final inspection of hull compartment 8 Tightness/ H
22、ydrostatic test 9 NDT of welded joints 10 Measurement of principal dimensions,11 Paint 12 Markings 13 Piping 14 Fire protection 15 Closing appliances 16 Stability experiments 17 Navigation bridge visibility 18 Sea trial,1. Acceptance Inspection,Purpose of inspection To confirm that the materials whi
23、ch a shipyard placed an order outside, and was produced at other places have been inspected by the society, and that they have not been damaged during transportation Object of inspection Material and equipment manufactured by subcontractors outside the shipyard, such as rolled steel, steel casting a
24、nd forging, welding materials, construction materials for fire protection, anchors, anchor chains, ropes, scuttles, hatch tarpaulins, hull blocks (*), steel hatch covers, watertight doors, steering gears, etc. Manner of inspection Verification of issue of certificate to the material carried into shi
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