CN103693165A - Manufacture method of chemicals independent cargo hold in hull - Google Patents
Manufacture method of chemicals independent cargo hold in hull Download PDFInfo
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- CN103693165A CN103693165A CN201310749730.7A CN201310749730A CN103693165A CN 103693165 A CN103693165 A CN 103693165A CN 201310749730 A CN201310749730 A CN 201310749730A CN 103693165 A CN103693165 A CN 103693165A
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Abstract
A manufacture method of a chemicals independent cargo hold in a hull is characterized by including the steps of designing drawing stock, and directly manufacturing stainless steel parts to be machined, in a manufacturer; scribing steel material, cutting and blanking; cold-machining the stainless steel parts; assembling and welding the stainless steel parts cold-machined; assembling and welding section by section; assembling an independent cargo hold; launching after pickling-passivation tightness test. The stainless steel parts are directly manufactured by the stainless steel manufacturer, so that expenditure on purchasing machining equipment is greatly saved, management cost is reduced, and construction period is short; in addition, the parts, in contact with liquid cargoes, of both side of the cargo hold are made of double-phase stainless steel, the part, in contact with the liquid cargoes, of one side of the cargo hold is made of stainless steel composite plates, and accordingly the cargo hold has high strength and corrosion resistance and the cost is saved; the process is reasonable, manufacture period is short, the cost is low, the manufactured independent cargo hold is high in strength, high in tightness and resistant to corrosion, and the needs for carrying high-corrosive chemicals are met.
Description
Technical field
The present invention relates to shipbuilding technical field, specifically the manufacture method of chemical independent cargo hold in a kind of hull.
Background technology
Chemical carrier is that the various liquid chemicals of carrying are as the special-purpose tank vessel of ether, benzene, alcohol, acid etc., liquid chemical has the features such as severe toxicity, inflammable, volatile and corrosive property are strong mostly, so chemical carrier has very high requirement to fire prevention, explosion-proof, gas defence and corrosion prevention etc.Along with economic develop rapidly and to the demand of chemical products, increase, world-renowned SINOPEC BASF, Shell, BP China constantly commence business, and in addition, EXXON MOBIL/ARMACO group and Dow Chemical Ye China commence business.Therefore, chemical transport demand is by fast rise within a period of time from now on, larger to the demand of chemical carrier.
Early stage chemical carrier is protected cargo hold inner structure material by special painting technology mostly; this cargo hold cost is not too high relatively; but the special painting of cargo hold cannot adapt to the carrying requirement of some acids liquid goods all the time; thereby limited the alerting ability loading; and coating is easily impaired; coating foaming and occur that rust staining phenomenon happens occasionally, and is easily contaminted goods.
The continuous progress with corrosion-resistant steel welding technique of updating along with stainless steel material, corrosion-resistant steel or composite stainless steel are applied gradually on chemical carrier, it is many that modern chemistry product ship has had subdivision, degree of automation is high, the features such as loading and unloading system safety and reliability, and due to after part cargo hold is corrosion-resistant steel cabin, cargo hold antiseptic power improves, suitable dress chemical is wider, load alerting ability stronger, can adapt in enormous quantities, the transportation of many kinds chemical, visible corrosion-resistant steel cabin chemical carrier is to grow up according to the requirement of shipping market, there is stronger market adaptability.
Corrosion-resistant steel cabin chemical carrier is one of the generally acknowledged hightech of current international shipbuilding shipping community, high added value ship type, compares with the international special chemical carrier that is coated with of carbon steel, has unique design and building technology, and many technology and equipment are domestic still belongs to blank.Corrosion-resistant steel chemistry product ship is as a kind of emerging boats and ships, its ship type is all the time among development and change, along with our pay attention to day by day to safety and environmental protection, relevant international convention and rule often have new behave, Development and Production to go out to meet the requirement of up-to-date international convention rule and have certain prospective chemical carrier and just seem particularly important.
Summary of the invention
Technical matters to be solved by this invention is to provide the manufacture method of chemical independent cargo hold in the hull that a kind of manufacturing cycle is short, cost is low, and the independent cargo hold making has high leakproofness and good decay resistance.
The present invention solves the problems of the technologies described above adopted technical scheme: the manufacture method of chemical independent cargo hold in a kind of hull, is characterized in that comprising the following steps:
One, design paper, gets the raw materials ready, and the stainless steel parts of need processing is processed by corrosion-resistant steel originating firm;
Two, by ruling after corrosion-resistant steel steel pretreatment, cutting stock;
Three, stainless steel component is carried out to cool working;
Four, the stainless steel component after cool working is carried out to field weld;
Five, corrosion-resistant steel block assembly welding;
Six, independent tank assembling;
Seven, finally by lower water after overpickling passivation tightness test.
As improvement, described corrosion-resistant steel is selected the two phase stainless steel consisting of austenite and double carbide, on the two sides of cargo hold, all adopts two phase stainless steel in Fluid Contacting goods position, only has the position of a Fluid Contacting goods to adopt stainless steel clad plate.
As improvement, described line is to adopt manual line, and the prepared Chinese ink that line is used is carbon containing not; Cutting stock adopts plasma cutting, and the work-yard of blanking is clean, carbon-free steel dust and other impurity.
As improvement, the assembling of described stainless steel component is specially.
A, at special platform, add plank and carry out steel plate splicing;
The edge of B, sheet material needs machine up, if find when splicing, indivedual places are undesirable, use emery wheel dressing, until meet the requirements;
C, steel plate splicing, without fixture, get final product weld nugget position after plate seam flush alignment, and tack welding welding rod is identical with the components of welding electrode of formal welding use;
The plate seam of D, large area jigsaw adopts two-sided automatic submerged arc welding, and assembly clearance is less than 1mm, after steel plate splicing, adopts carbon arc air gouging back chipping to process.
Improve again, described corrosion-resistant steel segmentation is divided into bottom segmentation, topside segmentation, deck panel and longitudinal and transverse wall segmentation, each segmentation is divided into stainless steel structure group and carbon steel structure group is built respectively, stainless steel structure part should be after carbon steel structure part closes in advance and fitting-out, after application fortification finish, then combine.
Improve, described independent tank assembling is divided into independent tank assembling and independent tank assembling again, and wherein independent tank assembling adopts and just making method, and its assembling process is: on moulding bed, lay bottom segmentation; In the segmentation of bottom, hold up part transcerse bulkhead; The segmentation of lifting topside; Lifting deck panel; Building berth field weld.Independent tank adopts and is just making method, and its assembling process is as follows: on moulding bed, lay bottom segmentation; In the segmentation of bottom, hold up longitudinal bulkhead and part transcerse bulkhead; Lifting deck panel; Building berth field weld.
Further improve, described corrosion-resistant steel will be placed on clean, dry storage house and away from the working space of carbon steel dust, the grains of sand and other impurity dust when storing after getting the raw materials ready, during stacking, spread on the ground with essential backing plate, between plate and plate, should put into wooden cushion block, during carrying, adopt vacuum to lift up into row handling, and use coated suspension hook.
Further improve, also comprise heating system, cooling system, air ventilation system, the installation of additive fill system and overflow system.
Compared with prior art, the invention has the advantages that: stainless steel parts is directly processed by originating firm, and this not only saves a large amount of expenses of purchasing Fabricating machinery, still can reduce handling cost, and shortens manufacturing schedule; In addition, for adapting to the needs of the extremely strong thick matter phosphoric acid class chemical of carrying corrosive property, on cargo hold two sides, all the position of Fluid Contacting goods adopts two phase stainless steel, and only having the position employing stainless steel clad plate of a Fluid Contacting goods, make like this cargo hold both there is high strength, high corrosion-resistant, saved again cost; When taking care of, transport, process, assembling at stainless steel component and welding, all adopt rational technique, guarantee that passivation film on stainless steel surface is not destroyed.Technique of the present invention is reasonable, the manufacturing cycle is short, cost is low, the independent cargo hold intensity making is high, there is high leakproofness, resistant to corrosion feature, can meet the needs of the chemical of delivery severe corrosive, for promoting shipbuilding enterprise, shorten the cycle, reduce costs, strengthen China in the competitive power in this field, improve China's corrosion-resistant steel inner casing chemical boats and ships in competitiveness in the international market, there are great economic results in society.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
A manufacture method for chemical independent cargo hold in hull, is characterized in that comprising the following steps:
One, design paper, gets the raw materials ready, and the stainless steel parts of need processing is processed by corrosion-resistant steel originating firm;
Two, by ruling after corrosion-resistant steel steel pretreatment, cutting stock;
Three, stainless steel component is carried out to cool working;
Four, the stainless steel component after cool working is carried out to field weld;
Five, corrosion-resistant steel block assembly welding;
Six, independent tank assembling;
Seven, finally by lower water after overpickling passivation tightness test.
Described corrosion-resistant steel is selected the two phase stainless steel consisting of austenite and double carbide, or two sides all the corrosion-resistant steel at Fluid Contacting goods position adopt two phase stainless steel, only have the employing stainless steel clad plate at a Fluid Contacting goods position.
Described line is to adopt manual line, and the prepared Chinese ink that line is used is carbon containing not; Cutting stock adopts plasma cutting, and the work-yard of blanking is clean, carbon-free steel dust and other impurity.
The assembling of described stainless steel component is specially:
A, at special platform, add plank and carry out steel plate splicing;
The edge of B, sheet material needs machine up, if find when splicing, indivedual places are undesirable, use emery wheel dressing, until meet the requirements;
C, steel plate splicing, without fixture, get final product weld nugget position after plate seam flush alignment, and tack welding welding rod is identical with the components of welding electrode of formal welding use;
The plate seam of D, large area jigsaw adopts two-sided automatic submerged arc welding, and assembly clearance is less than 1mm, after steel plate splicing, adopts carbon arc air gouging back chipping to process.
Described corrosion-resistant steel segmentation is divided into bottom segmentation, topside segmentation, deck panel and longitudinal and transverse wall segmentation, each segmentation is divided into stainless steel structure group and carbon steel structure group is built respectively, stainless steel structure part should be after carbon steel structure part closes in advance and fitting-out, after application fortification finish, then combines.
Described independent tank assembling is divided into independent tank assembling and independent tank assembling, and wherein independent tank assembling adopts and just making method, and its assembling process is: on moulding bed, lay bottom segmentation; In the segmentation of bottom, hold up part transcerse bulkhead; The segmentation of lifting topside; Lifting deck panel; Building berth field weld.Independent tank adopts and is just making method, and its assembling process is as follows: on moulding bed, lay bottom segmentation; In the segmentation of bottom, hold up longitudinal bulkhead and part transcerse bulkhead; Lifting deck panel; Building berth field weld.
Described corrosion-resistant steel will be placed on clean, dry storage house and away from the working space of carbon steel dust, the grains of sand and other impurity dust when storing after getting the raw materials ready, during stacking, spread on the ground with essential backing plate, between plate and plate, should put into wooden cushion block, during carrying, adopt vacuum to lift up into row handling, and use coated suspension hook.
Also comprise heating system, cooling system, air ventilation system, the installation of additive fill system and overflow system.
The concrete build process just below with the chemical carrier of chemical independent cargo hold in hull is done more specifically explanation:
One, ship shape parameter
(1) hull structure temperature field and temperature configuration stress aspect are proved and design;
(2) the corrosion-resistant steel chemistry product hull of project being built carries out cabin Duan Bianmo, selects rational cell type, and carries out the division of actv. finite element grid;
(3) project hull is calculated and solved, obtain its temperature stress distribution situation;
(4), according to existing particulars of ship and standard, carry out hull structural strength calculating;
(5) utilize finite element software ANSYS to calculate coupled stress, and result of calculation is carried out to labor, hull is carried out to part and strengthen;
(6) Production design of heating system;
(7) cooling system Production design;
(8) air ventilation system Production design;
(9) additive fill system Production design;
(10) overflow system Production design.
Two, the target that project demand reaches
The ship design of this project center from cabin pad, be all divided into left and right two parts cargo hold with at the ballast tank of cargo hold:
(1) stern region frame spacing is 600mm;
(2) area of aircraft cabins frame spacing is 650mm;
(3) cargo area frame spacing is 800mm;
(4) heating medium temperature is no more than 220 ℃ of secondary circuit heating systems;
(5) dual cycle cooling system;
(6) not interrupted injecting type air ventilation system;
(7) self-loopa additive injected system;
(8) automatic controlling water kick system.
Three, technological analysis and concrete manufacturing process
Boats and ships navigate by water in ocean, and suffered external force is very complicated, and these external force, except the weight of boats and ships institute's cargo and other equipments, are mainly the power that water acts on hull, and this comprises; Hydraulic pressure, wave kinetic pressure, force of inertia of impulsive force and boats and ships on the go etc., when considering strength of ship, Ship ', at the gravity and the flexural deformation under buoyancy and the stress that longitudinally distribute, can analyze the principal character of hull force and deformation.The various specific (special) requirements to liquid goods system for the suitable speciality chemical filling in corrosion-resistant steel cabin simultaneously, carry out deep demonstration and analysis to the liquid goods system core technology of corrosion-resistant steel chemistry product ship, and key design relates to the related system of cargo security storing.
General alleged corrosion-resistant steel; at least to contain the alloy steel of 12% chromium (Cr); its good antiseptic property is chromium oxide film firmly because chromium element and airborne oxygen or other Special Oxidants generate one deck densification after reacting; be our alleged " passivating film " or " passivation layer ", this layer film has protective effect to the metal below it.The constituent of oxide of chromium protective film is different with the difference of alloying component; and be subject to the impact of different processing methods (as rolling, pickling and heating); conventionally this layer of fire coat has self-healing ability, that is: this tunic because of a variety of causes local damage after, can in oxidizing environment, regenerate.But in certain environment or under certain formula condition, passivating film is destroyed rear corrosion, stainless form of corrosion generally has spot corrosion (pitting), gap erosion, stress erosion, electrolysis erosion and crystal erosion etc.
According to corrosion-resistant steel, there is the dissimilar of corrosion, in the design with corrosion-resistant steel cabin chemical carrier, construction, must take into full account the situation that causes destroying corrosion-resistant steel corrosion protection ability that prevents.Therefore,, in whole construction work progress, must implement strict construction management.
In the hull that the present invention produces, the corrosion-resistant steel of chemical independent cargo hold adopts " two phase stainless steel ", this corrosion-resistant steel consists of austenite and double carbide, there are these two kinds of steel of austenitic stainless steel and ferritic stainless steel, belong to chemical high intensity for ship, high corrosion-resistant stainless steel, adapt to the Construction of Chemical Product Tanker needs of the extremely strong thick matter phosphorus acid of carrying corrosive property.This class steel ship advantage is a lot, and as high in yield strength, the ability of anti intercrystalline corrosion is high, and the sour of stress corrosion is low, and the tendency cracking during welding is little, and casting fluidity is good etc.For cost-saving, position of Fluid Contacting goods all on two sides, as: bulkhead in length and breadth, adopt two phase stainless steel, only have the position of a Fluid Contacting goods, as tank top plate, deck and inner hull etc., use stainless steel clad plate.
(1) corrosion-resistant steel chemistry product ship build process flow process
Corrosion-resistant steel has its oneself characteristic, so my company is when building corrosion-resistant steel cabin chemical carrier, and tissue is prepared in the production of enterprise and build process must adapt with corrosion-resistant steel characteristic, and its shipbuilding technology flow process is:
(2) stainless steel ship build process
1, order goods
The particularity having according to stainless steel material, adopts blanking sketch to order goods to the stainless steel parts of need processing, and Ji Wo company provides blanking figure, and part, substantially without surplus, marks out whole bevel for weldings, cuts the information such as oblique, then at corrosion-resistant steel originating firm, machines.This way can be saved a large amount of expenses of purchasing Fabricating machinery on the one hand, also can reduce handling cost on the other hand.Owing to being processed into 10 times of left and right that the corrosion-resistant steel price of part is ordinary steel, so the blanking figure that my company provides must be accurate, can not omit any details, will note the dimensional accuracy of supplying especially.Manufacture stainless segmentation when technological design, to consider comprehensive without surplus blanking, assemble and close up, all parts must guarantee the dimensional accuracy without surplus blanking.
2, store
Corrosion-resistant steel has good antirust etch resistant properties, its this performance, and the chromium oxide layer that mainly relies on stainless steel surfaces to form completes, and protecting this very thin passivation layer is corrosion-resistant steel vital problem in storing, carry and taking care of.Cut on stainless steel surfaces, splash, especially carbon steel dust etc. all can damage passivating film, makes it lose antirust ability against corrosion.Therefore, corrosion-resistant steel should select to clean, dry storage house and away from the working space of carbon steel dust, the grains of sand and other impurity dust.Push away while putting corrosion-resistant steel, must spread on the ground with essential backing plate, between plate and plate, should put into wooden cushion block.
3, carrying
Because corrosion-resistant steel belongs to non-magnetic material, therefore can not use the handling of lifting magnet equipment, my company adopts vacuum to lift up into row handling, and uses coated suspension hook, as with truck or battery-driven car transportation, overlays onboard rubber with isolation carbon steel.The work-yard of corrosion-resistant steel blanking is clean, there is no carbon steel dust and other impurity.Line and during blanking, protect the passivating film of stainless steel surfaces, and line adopts manual, and the prepared Chinese ink that line is used is carbon containing not.Cutting adopts plasma cutting.
4, cool working
The member that stainless steel material is made can not carry out hot pressing processing and distortion correction by flame, mainly to prevent that saturated carbon can spread to crystal boundary rapidly when heating, and separate out with chromium formation carbide metal Cr23C6, because the diffusion velocity of chromium is slower, and can not get supplementing timely, crystal boundary around will cause the serious chromium that lacks, when the chromium content around crystal boundary is during lower than the content of the needed chromium of passivation, just become the anode of electrochemical corrosion and corroded, cutting property of danger is very big.So can only carry out cool working to stainless steel component, and reserve welding shrinkage-compensating amount and mould compacting springback capacity when cool working.Flat section and independent tank integral prefabricated complete after, adopt reversible deformation and prevent distortion measure, my company formulates following technique and ensures the quality of products:
(1) the accurate blanking of stainless steel sheet and large area wallboard without surplus assembling process; (2) assembly technology of corrosion-resistant steel wallboard and carbon structural steel section bar; (3) blanking of stainless steel component curved edge and processing technology; (4) the prefabricated and independent tank packaging technology program of flat section; (5) reversible deformation of flat section and independent tank body and prevent distortion measure.
5, the assembling of stainless steel material member processing
The processing of stainless steel component is mainly stainless large area splicing:
(1) steel plate splicing must add plank at special platform and carries out;
(2) edge of sheet material needs machine up, if find when splicing, indivedual places are undesirable, use emery wheel dressing, until meet the requirements;
(3) fixture that steel plate splicing generally need not " be pressed horse " and so on, can weld nugget position after plate seam flush alignment, and tack welding welding rod is identical with the components of welding electrode that formally welds use;
(4) plate of large area jigsaw seam adopts two-sided automatic submerged arc welding, and assembly clearance is less than 1mm, after steel plate splicing, if need back chipping to process, adopts carbon arc air gouging back chipping to process.
6, segmentation
Construction with the chemical carrier in corrosion-resistant steel cabin is a complicated system engineering, wherein the division of body segment is most important, whether the division of body segment is reasonable, directly affects production cycle, build guality, production efficiency, the productive costs of boats and ships, the performance of equipment potential and the technical and economic index such as improve working conditions.Segmentation is divided according to the form that is conducive to protect corrosion-resistant steel segmentation manufacture and is conducive to reduce the segmentation berth combination of corrosion-resistant steel cabin, makes to greatest extent aloft work esd ground, makes operation reach, reduces the work capacity of building berth.Corrosion-resistant steel segmentation is divided into bottom segmentation, topside segmentation, deck panel, longitudinal and transverse wall segmentation.Each segmentation is divided into stainless steel structure group and carbon steel structure group is built respectively, and stainless steel structure part should be after carbon steel structure part closes in advance and fitting-out, after application fortification finish, then combines.
7, the assembling of independent tank
Due to the particularity of stainless steel material, adopt independent tank construction method to close up weld seam to reduce the corrosion-resistant steel of berth combination, in the time of saving so a large amount of building berths work and raising quality.Independent tank manufacture is corrosion-resistant steel cabin ship developing direction from now on.
Independent tank assembling adopts is just making method, and its assembling process is:
(1) on moulding bed, lay bottom segmentation;
(2) in the segmentation of bottom, hold up part transcerse bulkhead;
(3) lifting topside segmentation;
(4) lifting deck panel;
(5) building berth field weld.
Independent tank adopts and is just making method, and its assembling process is as follows:
(1) on moulding bed, lay bottom segmentation;
(2) in the segmentation of bottom, hold up longitudinal bulkhead and part transcerse bulkhead;
(3) lifting deck panel;
(4) building berth field weld.
8, production control technology
Due to the framing member of molten stainless steel cargo hold aspect keeping, transportation, processing, assembling and welding accumulating all because the particularity of stainless steel material is more stricter and special than the requirement of carbon structural steel, therefore, the processing of stainless steel component is the key of building corrosion-resistant steel cabin chemical carrier with making, and at aspects such as technical elements and Infrastructure, is guaranteed.For production control, the maximum difficult point that manufacture in corrosion-resistant steel cabin is to guarantee that passivation film on stainless steel surface is not destroyed.Therefore, must strict implement all the time through people, machine, material, the method for each production process, encircle the management of these five factors of productions, make five factors of productions all the time in slave mode, thereby guarantee the build guality of corrosion-resistant steel cabin chemical carrier.
9, other system
Around corrosion-resistant steel cabin, the various specific (special) requirements of the speciality chemical of suitable dress to liquid goods system, increase heating system, cooling system, air ventilation system, additive fill system and overflow system.
This project boats and ships are the corrosion-resistant steel chemistry product ship of unit, single-blade, low speed diesel engine driving, can deliver 130 ℃ of following chemical of solidfying point <, this ship navigating area is Unlimited Navigation Areas, without ice formation, strengthens design, cargo hold district is bivalve Double bottom structure, and double bottom tank and boat side cabin are set to " L " type ballast chamber.Hull centerline is provided with together vertical grooved centerline bulkhead and runs through whole cargo hold district, and two cargo holds are divided into symmetrical two parts, and the upper and lower two ends of corrugated bulkhead adopt upper and lower pier structure support.
Four, economic and social profit
Project is built up the productive capacity that 6 30,000 tons of medium-sized high-mobility, multipurpose, wheeled vehicle corrosion-resistant steel independent cargo hold chemical carriers are produced in rear formation per year, and product has the feature of high leakproofness, withstanding corrosion, energy-conservation, hightech, 32,000 ten thousand yuan of enforcement sale incomes, 3,000 ten thousand yuan of profits taxes.
Medium-sized high-mobility, multipurpose, wheeled vehicle corrosion-resistant steel independent cargo hold chemical carrier research and development can meet with Industrialization Projects the needs that medium-sized corrosion-resistant steel inner casing chemical boats and ships are built in China's development, realize the new breakthrough mouth of boats and ships enterprise " two high " business development.This object completes, contribute to improve production and the field engineering of China's shipbuilding industry corrosion-resistant steel inner casing chemical boats and ships, develop the characteristic boats and ships industry in the city, and, this project can promote China's shipbuilding industry, and particularly shipbuilding enterprise shortens the cycle, reduces costs, and strengthens China in the competitive power in this neck field, improve China's corrosion-resistant steel inner casing chemical boats and ships in competitiveness in the international market, there are great economic results in society.This project implementation can solve at least 120 people's employment, makes them become the real workman that is skilled in technique, and alleviates the employment pressure of present society, and 120 workmans' wage can reach into 5 just in case year more than, really allow their the family level of enjoying a fairly comfortable life.
In sum, the present invention is beneficial to and accelerates development China's shipping industry, promote shipping industry upgrading transition, strengthen comprehensive strength, realize sustainable development, be conducive to increase local rates, promote the cause harmonious coordination development such as local economy, society, culture, be conducive to the masses and expand with the channel of obtaining income, promote social harmony stable, make it to obtain good economic benefit and social benefit.
Claims (8)
1. a manufacture method for chemical independent cargo hold in hull, is characterized in that comprising the following steps:
One, design paper, gets the raw materials ready, and the stainless steel parts of need processing is processed by corrosion-resistant steel originating firm;
Two, by ruling after corrosion-resistant steel steel pretreatment, cutting stock;
Three, stainless steel component is carried out to cool working;
Four, the stainless steel component after cool working is carried out to field weld;
Five, corrosion-resistant steel block assembly welding;
Six, independent tank assembling;
Seven, finally by lower water after overpickling passivation tightness test.
2. manufacture method according to claim 1, it is characterized in that: described corrosion-resistant steel is selected the two phase stainless steel consisting of austenite and double carbide, two sides at cargo hold all adopts two phase stainless steel in Fluid Contacting goods position, only has the position of a Fluid Contacting goods to adopt stainless steel clad plate.
3. manufacture method according to claim 1, is characterized in that: described line is to adopt manual line, and the prepared Chinese ink that line is used is carbon containing not; Cutting stock adopts plasma cutting, and the work-yard of blanking is clean, carbon-free steel dust and other impurity.
4. manufacture method according to claim 1, is characterized in that: the assembling of described stainless steel component is specially:
A, at special platform, add plank and carry out steel plate splicing;
The edge of B, sheet material needs machine up, if find when splicing, indivedual places are undesirable, use emery wheel dressing, until meet the requirements;
C, steel plate splicing, without fixture, get final product weld nugget position after plate seam flush alignment, and tack welding welding rod is identical with the components of welding electrode of formal welding use;
The plate seam of D, large area jigsaw adopts two-sided automatic submerged arc welding, and assembly clearance is less than 1mm, after steel plate splicing, adopts carbon arc air gouging back chipping to process.
5. manufacture method according to claim 1, it is characterized in that: described corrosion-resistant steel segmentation is divided into bottom segmentation, topside segmentation, deck panel and longitudinal and transverse wall segmentation, each segmentation is divided into stainless steel structure group and carbon steel structure group is built respectively, stainless steel structure part should be after carbon steel structure part closes in advance and fitting-out, after application fortification finish, then combine.
6. manufacture method according to claim 1, is characterized in that: described independent tank assembling is divided into independent tank assembling and independent tank assembling, and wherein independent tank assembling adopts and just making method, and its assembling process is: on moulding bed, lay bottom segmentation; In the segmentation of bottom, hold up part transcerse bulkhead; The segmentation of lifting topside; Lifting deck panel; Building berth field weld; Independent tank adopts and is just making method, and its assembling process is as follows: on moulding bed, lay bottom segmentation; In the segmentation of bottom, hold up longitudinal bulkhead and part transcerse bulkhead; Lifting deck panel; Building berth field weld.
7. manufacture method according to claim 1, it is characterized in that: described corrosion-resistant steel will be placed on clean, dry storage house and away from the working space of carbon steel dust, the grains of sand and other impurity dust when storing after getting the raw materials ready, during stacking, spread on the ground with essential backing plate, between plate and plate, should put into wooden cushion block, during carrying, adopt vacuum to lift up into row handling, and use coated suspension hook.
8. manufacture method according to claim 1, is characterized in that: also comprise heating system, cooling system, air ventilation system, the installation of additive fill system and overflow system.
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| CN107985505A (en) * | 2017-12-21 | 2018-05-04 | 沪东中华造船(集团)有限公司 | A kind of filter method of chemical tanker liquid pump filter protector |
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| CN110920828A (en) * | 2019-10-17 | 2020-03-27 | 沪东中华造船(集团)有限公司 | Method for assembling and inspecting groove type structures on two sides of straight broadside section |
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| CN103909388A (en) * | 2014-04-15 | 2014-07-09 | 南通长航船舶配件有限公司 | Cold and hot processing method for self-propelled drag suction dredger ship building |
| CN107985505A (en) * | 2017-12-21 | 2018-05-04 | 沪东中华造船(集团)有限公司 | A kind of filter method of chemical tanker liquid pump filter protector |
| TWI657966B (en) * | 2018-01-15 | 2019-05-01 | 香港商香港旭陽科技有限公司 | Diphase stainless steel chemical vessel ballast cabin bulkhead and processing method |
| CN109434465A (en) * | 2018-11-07 | 2019-03-08 | 南通中远海运川崎船舶工程有限公司 | A kind of production welding procedure of the big cabin rib cage of ship |
| CN109850066A (en) * | 2019-02-28 | 2019-06-07 | 广船国际有限公司 | A kind of ship always organizes method for loading |
| CN110789678A (en) * | 2019-09-25 | 2020-02-14 | 沪东中华造船(集团)有限公司 | Method for butt joint assembly of bottom sections of chemical ship |
| CN110560943A (en) * | 2019-10-12 | 2019-12-13 | 中国科学院金属研究所 | Precision manufacturing method of ultrathin-wall box type cabin section model |
| CN110920828A (en) * | 2019-10-17 | 2020-03-27 | 沪东中华造船(集团)有限公司 | Method for assembling and inspecting groove type structures on two sides of straight broadside section |
| CN111703553A (en) * | 2020-05-09 | 2020-09-25 | 沪东中华造船(集团)有限公司 | Construction precision control method for deck cabin of chemical ship |
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