CN104668803B - Civilian steel naval vessel application employment and suitability test (E & ST) method - Google Patents
Civilian steel naval vessel application employment and suitability test (E & ST) method Download PDFInfo
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- CN104668803B CN104668803B CN201310608068.3A CN201310608068A CN104668803B CN 104668803 B CN104668803 B CN 104668803B CN 201310608068 A CN201310608068 A CN 201310608068A CN 104668803 B CN104668803 B CN 104668803B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
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Abstract
The present invention provides a kind of civilian steel naval vessel application employment and suitability test (E & ST) method, including:Select civilian ripe steel grade as hull material;Structural simulation segmentation is designed with determination naval vessel segmental structure position to be tested;Material property, property of welded joint and shipbuilding technology compatibility test are carried out to the hull material of selection;Production technology detailed rules and regulations are worked out to the hull material of pass the test according to test result;Naval vessel segmental structure position to be tested is built according to the production technology detailed rules and regulations;Performance Assessment is carried out to building the naval vessel segmental structure position to be tested completed, final production technology detailed rules and regulations are worked out according to the result of appraisal and production technology detailed rules and regulations;It is whole that naval vessel is built using the hull material of pass the test and final production technology detailed rules and regulations.The present invention can ensure technical performance and the service life on naval vessel, meet the comprehensive comprehensive requirements such as design requirement, construction requirement, reliability, maintainability, the economy on naval vessel.
Description
Technical field
The present invention relates to technical field of ships, more particularly to a kind of civilian steel naval vessel application employment and suitability test (E & ST) method.
Background technology
The material base that Marine Materials are Ship Design, build, use and maintain, the Relationship between Mechanical of material arrive
The safety of Ship Structure and survival ability, the processing of material and welding performance are related to forming and the welding matter of shipyard construction
Amount, influences the appearance and service life on naval vessel.It is claimed below that China's current standard provides that the selection of Marine Materials will meet:
1)Meet GJB15.1 and in relation to the regulation in application specific standard;
2)Ship Structure material has to pass through identification, and gets the nod, newly develop material should by application test qualification and
Approve;
3)Performance is qualified;
4)Kind and specification must be complete, meet the needs on design-and-build;And design be to try to reduce kind and
Specification;
5)Welding material must be comprehensive, and passes through identification;
6)Have cold and hot working technical papers and welding documents necessary to construction;
7)It should ensure that structure can obtain and meet intensity requirement, minimum weight and reliable operation, there is good corrosion resistance
Energy;
8)Have to pass through comprehensive application demonstration.
In recent years, the production of the civilian Steel material peculiar to vessel in China and application development quickly, towards high intensity, high tenacity, easily weld
The direction connect is constantly progressive.The intensity rank of civilian steel is stepped up from 235MPa to 315MPa, 355MPa, 390MPa,
On large-scale bulk freighter and container ship, the high strength steel of 355MPa ranks has been occupied an leading position.
Hull linear curvature in naval vessel is larger, complicated, plate thickness is relatively thin, build guality requires high, civilian high strength steel
Properties and processing technology can meet the requirement on naval vessel, it is necessary to pass through detailed experiment and construction survey.
Invention content
The purpose of the present invention is to provide a kind of civilian steel naval vessel application employment and suitability test (E & ST) methods, can ensure naval vessel
Technical performance and service life, it is comprehensive comprehensive to meet design requirement, construction requirement, reliability, maintainability, the economy on naval vessel etc.
It is required that.
To solve the above problems, the present invention provides a kind of civilian steel naval vessel application employment and suitability test (E & ST) method, including:
According to factors such as the requirement of the performance, design requirement, building technology on naval vessel and maintainability, economy, in conjunction with ship
The requirements such as intensity, rigidity, the stability of body structure itself select civilian ripe steel grade as hull material;
The structure of the more hull material specification, reflection hull significant points that are used according to basic covering naval vessel, represents
Typical connecting node and the principle of welding form are designed structural simulation and are segmented with determination naval vessel segmental structure to be tested
Position;
Material property testing is carried out to the hull material of selection;
Property of welded joint experiment is carried out to the hull material of selection;
Shipbuilding technology compatibility test is carried out to the hull material of selection;
According to the result of the material property testing, property of welded joint experiment and shipbuilding technology compatibility test to experiment
Qualified hull material works out production technology detailed rules and regulations;
The naval vessel segmental structure position to be tested is built according to the production technology detailed rules and regulations;
Welding procedure and welding point are carried out respectively to building the naval vessel segmental structure position to be tested completed
Energy examination and flame forming plate technique and the examination of the mechanical property in extreme misery area, are compiled according to the result of examination and the production technology detailed rules and regulations
Make final production technology detailed rules and regulations;
It is whole that naval vessel is built using the hull material and corresponding final production technology detailed rules and regulations of the pass the test.
Further, in the above-mentioned methods, the civilian ripe steel grade is civilian high-strength marine structural steel EH36.
Further, in the above-mentioned methods, the naval vessel segmental structure position to be tested includes the typical bottom on naval vessel
Structure and typical flame forming plate structure.
Further, in the above-mentioned methods, the material property testing include conventional mechanical property experiment, toughness test and
Material sea water corrosion resistant is tested.
Further, in the above-mentioned methods, the property of welded joint experiment includes welding point basic performance tests, weldering
Connect joint toughness experiment and welding point explosion bulging experiment.
Further, in the above-mentioned methods, the shipbuilding technology compatibility test includes that strain aging sensitivity is tested, is cold
Bending process experiment, the plate fairing by hot working of steel plate and temper resistance experiment, flame forming plate are tested, welding cold crack sensitivity is tested,
Rigid geneva cross weld cracking expreiment.
Further, in the above-mentioned methods, the welding procedure and property of welded joint examination include conventional mechanical property
Experiment, the experiment of explosion bulging, heat affected area drop weight test, heat affected area wide plate test and welding point crack detection.
Compared with prior art, the present invention is required and is repaired according to the performance, design requirement, building technology on naval vessel
Property, the factors such as economy, in conjunction with requirements such as the intensity, rigidity, stability of Ship Structure itself, select civilian ripe steel grade as
Hull material;The structure of the more hull material specification, reflection hull significant points that are used according to basic covering naval vessel, represents
Typical connecting node and the principle of welding form are designed structural simulation and are segmented with determination naval vessel segmental structure to be tested
Position;Material property testing is carried out to the hull material of selection;Welding point is carried out to the hull material of selection
It can experiment;Shipbuilding technology compatibility test is carried out to the hull material of selection;According to the material property testing, connect
Head performance test and the result of shipbuilding technology compatibility test work out production technology detailed rules and regulations to the hull material of pass the test;According to
The production technology detailed rules and regulations build the naval vessel segmental structure position to be tested;To building the naval vessel to be tested completed
Segmental structure position carries out welding procedure and property of welded joint examination and the mechanical property in flame forming plate technique and extreme misery area respectively
It can examine, final production technology detailed rules and regulations are worked out according to the result of examination and the production technology detailed rules and regulations;It is closed using the experiment
The hull material of lattice and corresponding final production technology detailed rules and regulations build naval vessel entirety, can ensure technical performance and the longevity on naval vessel
Life meets the comprehensive comprehensive requirements such as design requirement, construction requirement, reliability, maintainability, the economy on naval vessel.
Description of the drawings
Fig. 1 is the flow chart of the civilian steel naval vessel application employment and suitability test (E & ST) method of one embodiment of the invention.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, the present invention provides a kind of civilian steel naval vessel application employment and suitability test (E & ST) method, including step S1~step
Rapid S9.
Step S1, requires and the factors such as maintainability, economy according to the performance, design requirement, building technology on naval vessel,
The requirements such as intensity, rigidity, stability in conjunction with Ship Structure itself select civilian ripe steel grade as hull material;
Preferably, the civilian ripe steel grade is civilian high-strength marine structural steel EH36.
Step S2, the more hull material specification used according to basic covering naval vessel, the knot for reflecting hull significant points
Structure, the principle for representing typical connecting node and welding form are designed structural simulation segmentation with determination naval vessel to be tested point
Segment structure position;
Preferably, the naval vessel segmental structure position to be tested includes the typical bottom structure on naval vessel and typical extreme misery
Bending plate.
Step S3 carries out material property testing to the hull material of selection;Specifically, in order to fully understand civilian steel
The applicability that timber-used is built in naval vessel Ship Structure can carry out material properties test to the steel plate that steel mill provides respectively and test material
Expect sea water corrosion resistant.
Preferably, the material property testing includes conventional mechanical property experiment, toughness test and material seawater corrosion resistance
Performance test.
Step S4 carries out property of welded joint experiment to the hull material of selection;
Preferably, the property of welded joint experiment includes welding point basic performance tests, welding point toughness test
With welding point explosion bulging experiment.
Step S5 carries out shipbuilding technology compatibility test to the hull material of selection;
Preferably, the shipbuilding technology compatibility test includes strain aging sensitivity experiment, cold bending process experiment, steel plate
Plate fairing by hot working and temper resistance experiment, flame forming plate experiment, welding cold crack sensitivity experiment, the weldering of rigid geneva cross
Connect cracking test.Specifically, the shipbuilding technology of steel plate includes mainly welding, cold and hot working etc..Strain aging sensitivity can be passed through
The cold and hot working Technological adaptability of steel plate is examined in experiment, cold bending process experiment, plate fairing by hot working, the flame forming plate experiment of steel plate, can
By the welding procedure adaptability for welding the examination steel plate such as cracking test.
Step S6, according to the material property testing, the knot of property of welded joint experiment and shipbuilding technology compatibility test
Fruit works out production technology detailed rules and regulations to the hull material of pass the test;Specifically, this step, which is establishment, builds principle technical papers
Step, principle technical papers mainly propose original to welding method, environmental condition and quality inspection of ship construction steel etc.
Then property requirement, factory combine own actual situation to work out specific production technology detailed rules and regulations.
Step S7 builds the naval vessel segmental structure position to be tested according to the production technology detailed rules and regulations;Specifically, this
Step is that shipyard builds simulation segmentation according to structural drawings.
Step S8 carries out welding procedure and welding respectively to building the naval vessel segmental structure position to be tested completed
Joint performance examination and flame forming plate technique and the examination of the mechanical property in extreme misery area, according to the result of examination and the production technology
Detailed rules and regulations work out final production technology detailed rules and regulations;Specifically, this step is to carry out simulation segmentation Dissection test.Simulation segmentation dissection examination
The content tested includes mainly following two parts:A) the various welding procedures and welding point of checking construction simulation sectional making
Energy;B) flame forming plate technique and the mechanical property in extreme misery area are examined.It, can be according to the result of examination to the production in this step
Technique detailed rules and regulations are adjusted establishment and obtain final production technology detailed rules and regulations, can also be according to the result of examination not to the production work
Skill detailed rules and regulations are adjusted, directly using original production technology detailed rules and regulations as final production technology detailed rules and regulations.
Preferably, the welding procedure and property of welded joint examination include conventional mechanical property experiment, explosion bulging examination
It tests, heat affected area drop weight test, heat affected area wide plate test and welding point crack detection.Specifically,
It is whole to build naval vessel using the hull material and corresponding final production technology detailed rules and regulations of the pass the test by step S9
Body.
An embodiment is used further to be described in detail the above-mentioned steps of the present invention below.
Embodiment one
Certain type naval vessel is using civilian high strength steel as hull material.
Step S1, specifies hull material
According to the mission task and loading condition on naval vessel, hull material selection intensity rank is the civilian high intensity of 355MPa
Structural steel peculiar to vessel(EH36).
Step S2, design structure simulation segmentation
Structural simulation segmentation has chosen one section of naval vessel typical bottom structure and a typical flame forming plate structure.
Step S3, material properties test
1) conventional mechanical property is tested
Material properties test is carried out to the EH36 steel plates of different plate thickness, is shown in Table 1.
Table 1EH36 steel conventional mechanical properties
Review the result shows that, test steels each element content analysis result and every conventional mechanical property are satisfied by
GJB15.1《Marine material specification hull material》It is required that.
2) toughness test
Test result shows:EH36 steel plates have higher ballistic work, cross, impact of collision work difference different less;EH36 steel
Drop weight test shows that testing steel plate has lower zero ductility transition temperature(TNDT is -50 DEG C~-60 DEG C);EH36 steel, which drops hammer, to be torn
It splits experiments have shown that the ductil-brittle transition temperature for testing steel plate is less than -22 DEG C;The explosive test of EH36 steel the result shows that, the FTE of EH36 steel
Temperature is less than -30 DEG C(When temperature in use is higher than the FTE temperature of steel, crackle will be only limited within the edge of plastically deforming area
Without being passed to elastic load area), EH36 steel plates are with the good capability of antidetonance.
3) material sea water corrosion resistant is tested
Test result shows that the stabilization corrosion potential of EH36 steel is suitable with military steel.
Step S4, property of welded joint experiment
According to GJB15.1《Marine material specification hull material》Pertinent regulations carry out welding point conventional mechanical property
Experiment, intensity, impact flexibility, the bending property of all test plate (panel) welding points are satisfied by technical requirement and the welding of EH36 steel
The capability of antidetonance of connector is good.
Step S5, shipbuilding technology compatibility test
2 Technological adaptability test result of table and shipbuilding technology requirement
Test result shows that EH36 steel has good comprehensive mechanical property and shipbuilding technology adaptability.
Principle technique is built in step S6, establishment
According to EH36 Steel materials performance and engineer testing as a result, working out《Ship structure simulates sectional construction welding
Principle technological requirement》And《Ship structure simulates sectional construction cold and hot working principle technological requirement》Two parts of principle technical papers.
Step S7, construction structure simulation segmentation
Shipyard builds simulation segmentation.
Step S8, simulation segmentation dissection
1)Welding procedure and property of welded joint experiment
Conventional mechanical property is tested
3 welding point conventional mechanical property test result of table
Bulging of exploding experiment
The explosion bulging test result of 4 welding point of table
Test result shows that the capability of antidetonance of structural simulation segmented welding connector is good.
Heat affected area drop weight test
The drop weight test result of 5 welding point heat affected area of table
Welding method | Zero TNDT/ DEG C of ductility transition temperature |
Flux-cored wire single welding | -45 |
Manual welding | -65 |
Flux-cored wire welding by both sides | -75 |
Submerged-arc welding | -30 |
Solid core welding wire single welding | -45 |
Solid core welding wire welding by both sides | - 50~-55 |
Welding point heat affected area drop weight test the result shows that, zero plastic deformation temperature of EH36 steel welded joints heat affected area
Degree is less than -30 DEG C, meets Ship products requirement.
Heat affected area wide plate test
6 welding point heat affected area wide plate test result of table
The welding point of simulation segmentation has enough fracture strengths, and it is crisp not will produce low stress at low ambient conditions
It is disconnected.
Welding point crack detection
Dissection has chosen cruciform joint at 7 altogether, in terms of the end face of the sample of inspection, does not find crackle.T connector selects altogether
It has taken at 23, in terms of the end face of inspection, has not also found any crackle
2) flame forming plate technique and the mechanical property test in extreme misery area
Stretching, impact, clod wash sample, test result is taken to show warp on steel plate after flame forming plate, plate fairing by hot working operation
The steel plate of hot working, basic mechanical performance can meet technical requirement.
The present invention is simple to operation, has the engineering feasibility of real ship operation, is carried to civilian steel naval vessel application applicability
Platform has been supplied, has been conducive to the general principle of steel the army and the people that naval is proposed, advantageously reduces the building expense on naval vessel.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, depends on the specific application and design constraint of technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
Obviously, those skilled in the art can carry out invention spirit of the various modification and variations without departing from the present invention
And range.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies range it
Interior, then the present invention is also intended to including these modification and variations.
Claims (3)
1. a kind of civilian steel naval vessel application employment and suitability test (E & ST) method, which is characterized in that including:
According to the requirement of the performance, design requirement, building technology on naval vessel and maintainability, economic factors, in conjunction with Ship Structure
The intensity of itself, rigidity, stability requirement select civilian ripe steel grade as hull material;
The structure of the more hull material specification, reflection hull significant points that are used according to basic covering naval vessel, represents typical case
Connecting node and welding form principle be designed structural simulation be segmented with determination naval vessel segmental structure position to be tested;
Material property testing is carried out to the hull material of selection;
Property of welded joint experiment is carried out to the hull material of selection;
Shipbuilding technology compatibility test is carried out to the hull material of selection;
According to the result of the material property testing, property of welded joint experiment and shipbuilding technology compatibility test to pass the test
Hull material work out production technology detailed rules and regulations;
The naval vessel segmental structure position to be tested is built according to the production technology detailed rules and regulations;
To building, the naval vessel segmental structure position to be tested completed carries out welding procedure respectively and property of welded joint is examined
Core and the examination of flame forming plate technique and the mechanical property in extreme misery area, are worked out most according to the result of examination and the production technology detailed rules and regulations
Whole production technology detailed rules and regulations;
It is whole that naval vessel is built using the hull material and corresponding final production technology detailed rules and regulations of the pass the test;
The civilian ripe steel grade is civilian high-strength marine structural steel EH36;
The naval vessel segmental structure position to be tested includes the typical bottom structure on naval vessel and typical flame forming plate structure;
The material property testing includes conventional mechanical property experiment and the experiment of material sea water corrosion resistant;
The property of welded joint experiment includes welding point basic performance tests and welding point explosion bulging experiment.
2. civilian steel naval vessel application employment and suitability test (E & ST) method as described in claim 1, which is characterized in that the shipbuilding technology
Compatibility test include strain aging sensitivity experiment, cold bending process experiment, the plate fairing by hot working of steel plate and temper resistance experiment,
Flame forming plate experiment, welding cold crack sensitivity experiment, rigid geneva cross weld cracking expreiment.
3. civilian steel naval vessel application employment and suitability test (E & ST) method as described in claim 1, which is characterized in that the welding procedure
And property of welded joint examination includes conventional mechanical property experiment, the experiment of explosion bulging, heat affected area drop weight test, heat affected area
Wide plate test and welding point crack detection.
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CN107609279B (en) * | 2017-09-18 | 2021-04-27 | 中国船舶科学研究中心(中国船舶重工集团公司第七0二研究所) | Method for obtaining impact strength design criterion of T-shaped welding joint |
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