CN106676364A - Alloy used for manufacturing ship propeller shaft - Google Patents
Alloy used for manufacturing ship propeller shaft Download PDFInfo
- Publication number
- CN106676364A CN106676364A CN201611154388.6A CN201611154388A CN106676364A CN 106676364 A CN106676364 A CN 106676364A CN 201611154388 A CN201611154388 A CN 201611154388A CN 106676364 A CN106676364 A CN 106676364A
- Authority
- CN
- China
- Prior art keywords
- alloy
- parts
- propeller shaft
- temperature
- furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention provide alloy used for manufacturing a ship propeller shaft. The alloy is prepared from, by weight, 0.35-0.45 part of C, 1.0-2.0 parts of Si, 1.0-1.5 parts of Mn, 28.0-32.0 parts of Cr, 45.0-50.0 parts of Ni, 14.0-17.0 parts of W, 0-0.03 part of P, 0-0.03 part of S, 14.0-17.0 parts of Mg and 13.0-15.0 parts of Al. The alloy has the beneficial effects that high and low-temperature refining and argon introduction for protection generally have important functions on the production rate and quality of the alloy; after Mg and Al are added, a hexachloroethane solution is added, the content of Mg in the alloy can be controlled according to actual requirements, and accordingly the corrosion resistance of the alloy is guaranteed; by the adoption of the electroslag remelting technique, the surface of an alloy ingot is smooth, the alloy ingot is clean, even and compact, and metallographic structures and chemical components are uniform; hot isostatic pressing is conducted before heat treatment, so that a propeller shaft casting is sintered and compacted, and the integral chemical performance of the propeller shaft casting is improved; and the alloy ingot is tested, the quality of the propeller shaft casting is guaranteed, high engine temperature resistance and seawater corrosion resistance are good, and the alloy has great market prospects.
Description
Technical field
The present invention relates to technical field of alloy, more particularly to a kind of alloy for manufacturing unit of axle of ship propellor.
Background technology
The propeller shaft of ship not only needs preferable resistance to engine high-temperature performance, in addition it is also necessary to have stronger corrosion resistance,
So as to ensure the afloat long-term navigation safety of ship, while maintenance frequency and cost can be reduced.The present invention is closed using high temperature
Golden material trademark is ZG40Ni48Cr30W15Si2, and its essential element has carbon, silicon, manganese, chromium, nickel, tungsten, phosphorus, sulphur etc., wherein chromium and
The content of nickel is higher, its yield strength ReL >=295MPa, tensile strength Rm >=490MPa, elongation percentage A >=2%, alloying component ratio
Relatively simple, cost is relatively low, with preferable resistance to elevated temperatures and intensity, in order to increase its that corrosivity, conjunction is with the addition of wherein
The magnesium and aluminium element of reason ratio so that the alloy produced has stronger corrosion resistance, it is adaptable to cast the screw of ship
Axle.
The content of the invention
To solve the above problems, the invention discloses a kind of preparation technology for manufacturing the alloy of unit of axle of ship propellor.
In order to reach object above, the present invention provides following technical scheme：
A kind of alloy for manufacturing unit of axle of ship propellor, it is characterised in that：It is made up of the raw material of following weight portion：C
0.35~0.45 part, 1.0~2.0 parts of Si, 1.0~1.5 parts of Mn, 28.0~32.0 parts of Cr, 45.0~50.0 parts of Ni, W
14.0~17.0 parts, P≤0.03 part, S≤0.03 part, 14.0~17.0 parts of Mg, 13.0~15.0 parts of Al；
The preparation technology for manufacturing the alloy of unit of axle of ship propellor, it is characterised in that：Concretely comprise the following steps：
(1) Ni is placed in into melting furnace bottom, C, Si, Mn, Cr, W, P, S is then added into smelting furnace, finally will be remaining
Ni is placed in top；Then argon gas is passed through, and smelting furnace is warming up to into 1600~1750 DEG C, carry out high temperature refinery 30-50min；With
After be cooled to 1450~1500 DEG C, carry out 20~30min of low-temperature refining；Then be cooled to 710~750 DEG C again, and add Mg,
Al, stirs to Mg, Al and all melts, and stands 15~30min；650~700 DEG C are cooled to again, and add carbon trichloride
(C2Cl6) solution；Last cooling down, pours into pole, and by pole surface sand milling finishing, standby；
(2) by CaF in electroslag furnace under protective Ar gas remelting furnace2、CaO2The slag charge of electroslag remelting is made, protective gas argon is passed through
Gas, and slag charge is heated to into molten condition, in pouring crystallizer into, and low-temperature cooling water is passed through into the housing wall of crystallizer, so
The pole prepared in step (1) is slowly declined in the slag charge of the electroslag remelting of melting afterwards, and the starting the arc that is powered, adjustment remelting electricity
50~70V, 4000~7000A of electric current are depressed into, pole is slowly melted by resistance heat, slag of the pole drop after fusing through melting
The bed of material reacts with slag charge and is purified, and recrystallizes in the bottom of crystallizer, obtains dense structure, uniform, pure,
The alloy pig of any surface finish；
(3) quenched after the alloy pig in step (2) being incubated into 1~2h at 1150 DEG C；Then carry out cold rolling for the first time
And annealing, in first time cold rolling reduction up to after 50~60%, at 750~820 DEG C 3~4 hours are incubated；Then is carried out again
Secondary cold-rolling and annealing, after cold rolling reduction reaches 50~60% again, at 530~650 DEG C 4~5 hours are incubated；It is most laggard
Row third time is cold rolling and anneals：After cold rolling reduction reaches 50~60% again, 12~24 hours are incubated at 480~500 DEG C,
So as to obtain obtaining the propeller shaft foundry goods with certain mechanical performance, shape and size；
(4) the propeller shaft foundry goods that step (3) is obtained is put in hot isostatic press, controls 1000~1200 DEG C of temperature,
100~200Mpa of pressure, keeps 30~50min；Then take out and be put in heat-treatment furnace, 1150~1200 DEG C of temperature of control, guarantor
10~30h of temperature, then carries out high pressure air-blowing and is cooled to room temperature with pure argon；It is subsequently placed into vacuum air-quenching furnace, control temperature 900~
1000 DEG C, 5~10h is incubated, with the speed of 50~100 DEG C/h 500~600 DEG C are cooled to, and high pressure air-blowing is carried out with pure argon
It is cooled to room temperature；Cabinet-type electric furnace is finally placed into, 700~750 DEG C of temperature is controlled, 5~10h is incubated, with the speed of 50~60 DEG C/h
Spend and be cooled to 400~450 DEG C, and high pressure air-blowing is carried out with pure argon and be cooled to room temperature；
(5) using metal machining equipment, propeller shaft foundry goods profile, size obtained to step (4) etc. is further
Accurate processing；
(6) the propeller shaft casting quality that checking procedure (5) is obtained, including the surface of propeller shaft foundry goods whether there is substantially knot
Scar, crackle and slag runner, propeller shaft feeding a casting end face smooth whether there is obvious shrinkage cavity, and inside without obvious shrinkage cavity, loose etc.
Defect, re-works to underproof, then whether has slight crack with ultrasonic flaw detection instrument detection propeller shaft cast-internal,
It is then waste product if any slight crack, checks qualified for finished product, warehouse-in.
The present invention a kind of novel high-temperature alloy propeller shaft castings production technique, first by C, Si, Mn, Cr, W, P, S,
Ni is put in smelting furnace carries out high/low temperature refining, and is passed through argon gas protection, is subsequently added Mg, Al stir-melting, finally lowers the temperature cold
But, pole is poured into, is that follow-up electroslag remelting is prepared.The argon gas being passed through can protect alloy molten solution, can effectively prevent melting
Alloy is aoxidized, while also stopping impurity and the moisture in air, usually has important work to the productivity ratio and quality of alloy
With.Meanwhile, carbon trichloride liquation can effectively reduce the impurity magnesium amount in aluminium alloy, preferably control according to actual needs
The content of the magnesium in alloyage.
The slag charge of electroslag remelting is subsequently prepared, and is heated to molten condition, in pouring crystallizer into, and to the housing of crystallizer
Low-temperature cooling water is passed through in wall, then will be prepared from molten electrode bar and be slowly declined in the slag charge of the electroslag remelting of melting, and
The energization starting the arc, reacting with slag charge through the slag material layer of melting from molten electrode bar drop and being purified after fusing, and
The bottom of crystallizer recrystallizes, and obtains dense structure, uniform, pure, the alloy pig of any surface finish.Thus, Jing electroslag remeltings
Alloy, purity is high, sulfur-bearing is low, non-metallic inclusion is few, alloy pig sublist face is smooth, clean even compact, metallographic structure and
Chemical composition is uniform.
Quenching and three cold rolling and annealings are then passed through, is obtained with certain mechanical performance, shape and size
Propeller shaft foundry goods.
Then propeller shaft foundry goods is put in hot isostatic press, carries out hip treatment so that propeller shaft foundry goods
It is able to sinter and is densified, after hip treatment, propeller shaft foundry goods can reaches 100% densification, improve spiral
The overall mechanical properties of oar axle casting part；It is heat-treated afterwards, to obtain required structural state and good comprehensive
Energy.
Finally, using metal machining equipment, the further accurate processing such as propeller shaft foundry goods profile, size, and it is right
The surface of propeller shaft foundry goods whether there is substantially is scabbed, crackle and slag runner, alloy pig feeding end face smooth whether there is obvious shrinkage cavity, and
Inside re-works without the defect such as obvious shrinkage cavity, loose to underproof, then detects screw with ultrasonic flaw detection instrument
Whether axle cast-internal has slight crack, is then waste product if any slight crack, checks qualified for finished product, warehouse-in, so obtained screw
Axle casting part has preferable resistance to engine high-temperature and resistance to corrosion seawater.
Further, the constituent of slag charge and the parts by weight of each composition are respectively in the step (2)：CaF2
40~70 parts, CaO210~30 parts.
Further, pure argon carries out high pressure air-blowing in the step (4), point 4~7 air-blowings, every time 1~3s, air-blowing
Number of times is more, and each air-blowing time is shorter.
Further, the metal machining equipment in the step (5) includes：Lathe, milling machine, Bao bed and boring machine etc..
Compared with prior art, the beneficial effects of the present invention is：Refined by high/low temperature, and be passed through argon gas protection, can
To protect alloy molten solution, can effectively prevent molten alloy from aoxidizing, while also stop impurity and the moisture in air, to alloy
Productivity ratio and quality usually have important function；Add magnalium after, be passed through carbon trichloride liquation, can according to actual needs,
The impurity magnesium amount in aluminium alloy is effectively reduced, the content of the magnesium in alloy is preferably controlled, so as to ensure the resistance to of alloy
Corrosivity；Using electroslag remelting process so that the alloy of Jing electroslag remeltings, purity is high, sulfur-bearing is low, non-metallic inclusion is few, conjunction
Ingot sublist face is smooth, clean even compact, metallographic structure and chemical composition it is uniform；By quenching and three times it is cold rolling and annealing
Process, obtain and there is certain mechanical performance, the propeller shaft foundry goods of shape and size；Before heat treatment using at high temperature insostatic pressing (HIP)
Reason so that propeller shaft foundry goods is able to sinter and is densified, and after hip treatment, propeller shaft foundry goods can reach
100% densification, improves the overall mechanical properties of propeller shaft foundry goods；Using heat treatment, the cast member of acquisition has tissue shape
The good combination property of state；The surface of alloy pig is whether there is substantially scab, crackle and slag runner, alloy pig feeding end face are smooth whether there is
Substantially shrinkage cavity, and inside tests without the defect such as obvious shrinkage cavity, loose, re-works to underproof, and use ultrasonic wave
Whether harmless flaw detector detection propeller shaft cast-internal has slight crack, it is ensured that the quality of propeller shaft foundry goods, with good
Market prospects.
Specific embodiment
With reference to specific embodiment, the present invention is further elucidated, it should be understood that following specific embodiments are only used for
The bright present invention rather than restriction the scope of the present invention.
Embodiment 1
A kind of alloy for manufacturing unit of axle of ship propellor, is made up of the raw material of following weight portion described in the present embodiment：C
0.40 part, 1.5 parts of Si, 1.32 parts of Mn, 30.0 parts of Cr, 47.0 parts of Ni, 15.0 parts of W, 0.03 part of P, 0.03 part of S, Mg
15.0 parts, 14.0 parts of Al；
Described corrosion resistant high temperature alloy propeller shaft foundry goods manufacturing process, concretely comprises the following steps：
(1) Ni is placed in into melting furnace bottom, C, Si, Mn, Cr, W, P, S is then added into smelting furnace, finally will be remaining
Ni is placed in top；Then argon gas is passed through, and smelting furnace is warming up to into 1700 DEG C, carry out high temperature refinery 40min；Subsequently it is cooled to
1470 DEG C, carry out low-temperature refining 25min；Then 723 DEG C are cooled to again, and add Mg, Al, stir to Mg, Al and all melt, and
Stand 20min；680 DEG C are cooled to again, and add carbon trichloride (C2Cl6) solution；Last cooling down, pours into pole, and will
It is the sand milling finishing of pole surface, standby；
(2) by CaF in electroslag furnace under protective Ar gas remelting furnace250 parts, CaO220 parts, the slag charge of electroslag remelting is made, be passed through
Protective gas argon gas, and slag charge is heated to into molten condition, in pouring crystallizer into, and low temperature is passed through into the housing wall of crystallizer
Cooling water, is then slowly declined to the pole prepared in step (1) in the slag charge of the electroslag remelting of melting, and the starting the arc that is powered,
To 60V, electric current 5000A, pole is slowly melted adjustment remelting voltage by resistance heat, slag of the pole drop after fusing through melting
The bed of material reacts with slag charge and is purified, and recrystallizes in the bottom of crystallizer, obtains dense structure, uniform, pure,
The alloy pig of any surface finish；
(3) quenched after the alloy pig in step (2) being incubated into 1.5h at 1150 DEG C；Then carry out it is for the first time cold rolling and
Annealing, in first time cold rolling reduction up to after 55%, at 790 DEG C 3.5 hours is incubated；Then carry out again cold rolling for the second time and move back
Fire, after cold rolling reduction reaches 55% again, at 600 DEG C 4.5 hours is incubated；Finally carry out cold rolling for the third time and annealing：
After cold rolling reduction reaches 55% again, 18 hours are incubated at 490 DEG C, there is certain mechanical performance, shape so as to obtain obtaining
With the propeller shaft foundry goods of size；
(4) the propeller shaft foundry goods that step (3) is obtained is put in hot isostatic press, controls 1100 DEG C of temperature, pressure
150Mpa, keeps 40min；Then take out and be put in heat-treatment furnace, then 1170 DEG C of temperature of control, insulation 20h are entered with pure argon
Horizontal high voltage air-borne fungi is to room temperature；Vacuum air-quenching furnace is subsequently placed into, 800 DEG C of temperature is controlled, 7h is incubated, it is cold with the speed of 70 DEG C/h
But to 550 DEG C, and carry out high pressure air-blowing with pure argon and be cooled to room temperature；Cabinet-type electric furnace is finally placed into, 730 DEG C of temperature is controlled,
Insulation 7h, is cooled to 420 DEG C, and carries out high pressure air-blowing with pure argon and be cooled to room temperature with the speed of 55 DEG C/h；Wherein, pure argon
High pressure air-blowing is carried out, point 6 air-blowings, each 2s, air-blowing number of times is more, and each air-blowing time is shorter；
(5) boring machine is utilized, the further accurate processing such as propeller shaft foundry goods profile, size obtained to step (4)；
(6) the alloy pig quality that checking procedure (5) is obtained, including the surface of alloy pig whether there is substantially to be scabbed, crackle and slag
Ditch, alloy pig feeding end face are smooth to whether there is obvious shrinkage cavity, and inside without the defect such as obvious shrinkage cavity, loose, to underproof heavy
Whether new processing, then have slight crack with ultrasonic flaw detection instrument detection propeller shaft cast-internal, is then waste product if any slight crack,
Inspection is qualified for finished product, warehouse-in.
Embodiment 2
A kind of alloy for manufacturing unit of axle of ship propellor, is made up of the raw material of following weight portion described in the present embodiment：C
0.35 part, 2.0 parts of Si, 1.0 parts of Mn, 32.0 parts of Cr, 45.0 parts of Ni, 17.0 parts of W, 0.02 part of P, 0.02 part of S, Mg
14.0 parts, 15.0 parts of Al；
Described corrosion resistant high temperature alloy propeller shaft foundry goods manufacturing process, concretely comprises the following steps：
(1) Ni is placed in into melting furnace bottom, C, Si, Mn, Cr, W, P, S is then added into smelting furnace, finally will be remaining
Ni is placed in top；Then argon gas is passed through, and smelting furnace is warming up to into 1600 DEG C, carry out high temperature refinery 50min；Subsequently it is cooled to
1450 DEG C, carry out low-temperature refining 30min；Then 710 DEG C are cooled to again, and add Mg, Al, stir to Mg, Al and all melt, and
Stand 30min；650 DEG C are cooled to again, and add carbon trichloride (C2Cl6) solution；Last cooling down, pours into pole, and will
It is the sand milling finishing of pole surface, standby；
(2) by CaF in electroslag furnace under protective Ar gas remelting furnace270 parts, CaO210 parts, the slag charge of electroslag remelting is made, be passed through
Protective gas argon gas, and slag charge is heated to into molten condition, in pouring crystallizer into, and low temperature is passed through into the housing wall of crystallizer
Cooling water, is then slowly declined to the pole prepared in step (1) in the slag charge of the electroslag remelting of melting, and the starting the arc that is powered,
To 70V, electric current 4000A, pole is slowly melted adjustment remelting voltage by resistance heat, slag of the pole drop after fusing through melting
The bed of material reacts with slag charge and is purified, and recrystallizes in the bottom of crystallizer, obtains dense structure, uniform, pure,
The alloy pig of any surface finish；
(3) quenched after the alloy pig in step (2) being incubated into 2h at 1150 DEG C；Then carry out cold rolling for the first time and move back
Fire, in first time cold rolling reduction up to after 50%, at 820 DEG C 3 hours is incubated；Then second cold rolling and annealing is carried out again,
After cold rolling reduction reaches 60% again, at 530 DEG C 5 hours are incubated；Finally carry out cold rolling for the third time and annealing：In cold rolling change
After shape amount reaches 50% again, 12 hours are incubated at 500 DEG C, there are certain mechanical performance, shape and size so as to obtain obtaining
Propeller shaft foundry goods；
(4) the propeller shaft foundry goods that step (3) is obtained is put in hot isostatic press, controls 1200 DEG C of temperature, pressure
100Mpa, keeps 50min；Then take out and be put in heat-treatment furnace, then 1150 DEG C of temperature of control, insulation 30h are entered with pure argon
Horizontal high voltage air-borne fungi is to room temperature；Vacuum air-quenching furnace is subsequently placed into, 900 DEG C of temperature is controlled, 10h is incubated, with the speed of 50 DEG C/h
600 DEG C are cooled to, and high pressure air-blowing is carried out with pure argon and be cooled to room temperature；Cabinet-type electric furnace is finally placed into, temperature 700 is controlled
DEG C, 10h is incubated, 450 DEG C are cooled to the speed of 50 DEG C/h, and high pressure air-blowing is carried out with pure argon and be cooled to room temperature；Wherein, it is pure
Argon gas carries out high pressure air-blowing, and point 4 air-blowings, each 3s, air-blowing number of times is more, and each air-blowing time is shorter；
(5) milling machine is utilized, the further accurate processing such as propeller shaft foundry goods profile, size obtained to step (4)；
(6) the alloy pig quality that checking procedure (5) is obtained, including the surface of alloy pig whether there is substantially to be scabbed, crackle and slag
Ditch, alloy pig feeding end face are smooth to whether there is obvious shrinkage cavity, and inside without the defect such as obvious shrinkage cavity, loose, to underproof heavy
Whether new processing, then have slight crack with ultrasonic flaw detection instrument detection propeller shaft cast-internal, is then waste product if any slight crack,
Inspection is qualified for finished product, warehouse-in.
Embodiment 3
A kind of alloy for manufacturing unit of axle of ship propellor, is made up of the raw material of following weight portion described in the present embodiment：C
0.45 part, 1.0 parts of Si, 1.5 parts of Mn, 28.0 parts of Cr, 50.0 parts of Ni, 14.0 parts of W, 0.025 part of P, 0.025 part of S, Mg
17.0 parts, 13.0 parts of Al；
Described corrosion resistant high temperature alloy propeller shaft foundry goods manufacturing process, concretely comprises the following steps：
(1) Ni is placed in into melting furnace bottom, C, Si, Mn, Cr, W, P, S is then added into smelting furnace, finally will be remaining
Ni is placed in top；Then argon gas is passed through, and smelting furnace is warming up to into 1750 DEG C, carry out high temperature refinery 30min；Subsequently it is cooled to
1500 DEG C, carry out low-temperature refining 20min；Then 750 DEG C are cooled to again, and add Mg, Al, stir to Mg, Al and all melt, and
Stand 15min；700 DEG C are cooled to again, and add carbon trichloride (C2Cl6) solution；Last cooling down, pours into pole, and will
It is the sand milling finishing of pole surface, standby；
(2) by CaF in electroslag furnace under protective Ar gas remelting furnace240 parts, CaO230 parts, the slag charge of electroslag remelting is made, be passed through
Protective gas argon gas, and slag charge is heated to into molten condition, in pouring crystallizer into, and low temperature is passed through into the housing wall of crystallizer
Cooling water, is then slowly declined to the pole prepared in step (1) in the slag charge of the electroslag remelting of melting, and the starting the arc that is powered,
To 50V, electric current 7000A, pole is slowly melted adjustment remelting voltage by resistance heat, slag of the pole drop after fusing through melting
The bed of material reacts with slag charge and is purified, and recrystallizes in the bottom of crystallizer, obtains dense structure, uniform, pure,
The alloy pig of any surface finish；
(3) quenched after the alloy pig in step (2) being incubated into 1h at 1150 DEG C；Then carry out cold rolling for the first time and move back
Fire, in first time cold rolling reduction up to after 60%, at 750 DEG C 4 hours is incubated；Then second cold rolling and annealing is carried out again,
After cold rolling reduction reaches 50% again, at 650 DEG C 4 hours are incubated；Finally carry out cold rolling for the third time and annealing：In cold rolling change
After shape amount reaches 60% again, 24 hours are incubated at 480 DEG C, there are certain mechanical performance, shape and size so as to obtain obtaining
Propeller shaft foundry goods；
(4) the propeller shaft foundry goods that step (3) is obtained is put in hot isostatic press, controls 1000 DEG C of temperature, pressure
200Mpa, keeps 30min；Then take out and be put in heat-treatment furnace, then 1200 DEG C of temperature of control, insulation 10h are entered with pure argon
Horizontal high voltage air-borne fungi is to room temperature；Vacuum air-quenching furnace is subsequently placed into, 1000 DEG C of temperature is controlled, 5h is incubated, with the speed of 100 DEG C/h
500 DEG C are cooled to, and high pressure air-blowing is carried out with pure argon and be cooled to room temperature；Cabinet-type electric furnace is finally placed into, temperature 750 is controlled
DEG C, 5h is incubated, 400 DEG C are cooled to the speed of 60 DEG C/h, and high pressure air-blowing is carried out with pure argon and be cooled to room temperature；Wherein, it is pure
Argon gas carries out high pressure air-blowing, and point 7 air-blowings, each 1s, air-blowing number of times is more, and each air-blowing time is shorter；
(5) lathe is utilized, the further accurate processing such as propeller shaft foundry goods profile, size obtained to step (4)；
(6) the alloy pig quality that checking procedure (5) is obtained, including the surface of alloy pig whether there is substantially to be scabbed, crackle and slag
Ditch, alloy pig feeding end face are smooth to whether there is obvious shrinkage cavity, and inside without the defect such as obvious shrinkage cavity, loose, to underproof heavy
Whether new processing, then have slight crack with ultrasonic flaw detection instrument detection propeller shaft cast-internal, is then waste product if any slight crack,
Inspection is qualified for finished product, warehouse-in.
Claims (5)
1. a kind of alloy for manufacturing unit of axle of ship propellor, it is characterised in that：It is made up of the raw material of following weight portion：C 0.35
~0.45 part, 1.0~2.0 parts of Si, 1.0~1.5 parts of Mn, 28.0~32.0 parts of Cr, 45.0~50.0 parts of Ni, W 14.0~
17.0 parts, P≤0.03 part, S≤0.03 part, 14.0~17.0 parts of Mg, 13.0~15.0 parts of Al.
2. a kind of preparation technology for manufacturing the alloy of unit of axle of ship propellor according to claim 1, it is characterised in that：
Concretely comprise the following steps：
(1) Ni is placed in into melting furnace bottom, C, Si, Mn, Cr, W, P, S is then added into smelting furnace, finally put remaining Ni
In top；Then argon gas is passed through, and smelting furnace is warming up to into 1600~1750 DEG C, carry out high temperature refinery 30-50min；Subsequently drop
Temperature carries out 20~30min of low-temperature refining to 1450~1500 DEG C；Then 710~750 DEG C are cooled to again, and add Mg, Al, stir
Mix to Mg, Al and all melt, and stand 15~30min；650~700 DEG C are cooled to again, and add carbon trichloride (C2Cl6) molten
Liquid；Last cooling down, pours into pole, and by pole surface sand milling finishing, standby；
(2) by CaF in electroslag furnace under protective Ar gas remelting furnace2、CaO2The slag charge of electroslag remelting is made, protective gas argon gas is passed through, and
Slag charge is heated to into molten condition, in pouring crystallizer into, and low-temperature cooling water is passed through into the housing wall of crystallizer, then will step
Suddenly the pole for preparing in (1) is slowly declined in the slag charge of the electroslag remelting for melting, and the starting the arc that is powered, adjustment remelting voltage to 50
~70V, 4000~7000A of electric current, pole is slowly melted by resistance heat, the pole drop after fusing through melting slag material layer with
Slag charge reacts and is purified, and recrystallizes in the bottom of crystallizer, obtains dense structure, uniform, pure, surface light
Clean alloy pig；
(3) quenched after the alloy pig in step (2) being incubated into 1~2h at 1150 DEG C；Then carry out cold rolling for the first time and move back
Fire, in first time cold rolling reduction up to after 50~60%, at 750~820 DEG C 3~4 hours is incubated；Then second is carried out again
Cold rolling and annealing, after cold rolling reduction reaches 50~60% again, at 530~650 DEG C 4~5 hours is incubated；Finally carry out
Three cold rolling and annealing：After cold rolling reduction reaches 50~60% again, 12~24 hours are incubated at 480~500 DEG C, so as to
Obtain obtaining and there is certain mechanical performance, the propeller shaft foundry goods of shape and size；
(4) the propeller shaft foundry goods that step (3) is obtained is put in hot isostatic press, controls 1000~1200 DEG C of temperature, pressure
100~200Mpa, keeps 30~50min；Then take out and be put in heat-treatment furnace, 1150~1200 DEG C of temperature of control, insulation 10
~30h, then carries out high pressure air-blowing and is cooled to room temperature with pure argon；Vacuum air-quenching furnace is subsequently placed into, temperature 900~1000 is controlled
DEG C, 5~10h is incubated, 500~600 DEG C are cooled to the speed of 50~100 DEG C/h, and carry out high pressure air-borne fungi with pure argon
To room temperature；Cabinet-type electric furnace is finally placed into, 700~750 DEG C of temperature is controlled, 5~10h is incubated, it is cold with the speed of 50~60 DEG C/h
But to 400~450 DEG C, and carry out high pressure air-blowing with pure argon and be cooled to room temperature；
(5) using metal machining equipment, propeller shaft foundry goods profile, size obtained to step (4) etc. is further accurate
Processing；
(6) the propeller shaft casting quality that checking procedure (5) is obtained, including the surface of propeller shaft foundry goods whether there is substantially to be scabbed,
Crackle and slag runner, propeller shaft feeding a casting end face smooth whether there is obvious shrinkage cavity, and inside lacks without obvious shrinkage cavity, loose etc.
Fall into, re-work to underproof, then whether have slight crack with ultrasonic flaw detection instrument detection propeller shaft cast-internal, such as
There is slight crack then for waste product, check qualified for finished product, warehouse-in.
3. a kind of preparation technology for manufacturing the alloy of unit of axle of ship propellor according to claim 2, it is characterised in that：
The constituent of slag charge and the parts by weight of each composition are respectively in the step (2)：CaF240~70 parts, CaO210~
30 parts.
4. a kind of preparation technology for manufacturing the alloy of unit of axle of ship propellor according to claim 2, it is characterised in that：
Pure argon carries out high pressure air-blowing in the step (4), point 4~7 air-blowings, every time 1~3s, and air-blowing number of times is more, each air-blowing
Time is shorter.
5. a kind of novel high-temperature alloy propeller shaft castings production technique according to claim 2, it is characterised in that：It is described
Metal machining equipment in step (5) includes：Lathe, milling machine, Bao bed and boring machine etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154388.6A CN106676364A (en) | 2016-12-14 | 2016-12-14 | Alloy used for manufacturing ship propeller shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154388.6A CN106676364A (en) | 2016-12-14 | 2016-12-14 | Alloy used for manufacturing ship propeller shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106676364A true CN106676364A (en) | 2017-05-17 |
Family
ID=58868002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611154388.6A Pending CN106676364A (en) | 2016-12-14 | 2016-12-14 | Alloy used for manufacturing ship propeller shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106676364A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254615A (en) * | 2017-06-27 | 2017-10-17 | 南京律智诚专利技术开发有限公司 | A kind of alloy for being used to cast foreign-going ship propeller |
| CN109252084A (en) * | 2018-11-28 | 2019-01-22 | 陕西宝锐金属有限公司 | A kind of preparation process of high-purity GH825 alloy fine grain plate |
| CN109319079A (en) * | 2018-09-29 | 2019-02-12 | 武汉船用机械有限责任公司 | The guard method of propeller shaft |
| CN111377043A (en) * | 2020-03-25 | 2020-07-07 | 安徽志恒智能装备制造有限公司 | Propeller casting process and propeller |
| CN111842486A (en) * | 2020-06-24 | 2020-10-30 | 江苏圣珀新材料科技有限公司 | Cold rolling process of high-temperature alloy GH4169 |
| CN111842487A (en) * | 2020-06-24 | 2020-10-30 | 江苏圣珀新材料科技有限公司 | Cold rolling process of hastelloy C276 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100649A (en) * | 1985-04-01 | 1986-07-30 | 鞍山钢铁公司 | The ultrahigh-temperature abrasion-resistant cast nickel based alloy |
| CN1258756A (en) * | 1999-12-17 | 2000-07-05 | 黄进峰 | High-temperature high-strength antioxidant anticorrosive austenite alloy |
| CN1831165A (en) * | 2005-03-03 | 2006-09-13 | 大同特殊钢株式会社 | Nonmagnetic high-hardness alloy |
| CN101864531A (en) * | 2008-12-25 | 2010-10-20 | 住友金属工业株式会社 | Austenitic heat resistant alloy |
-
2016
- 2016-12-14 CN CN201611154388.6A patent/CN106676364A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100649A (en) * | 1985-04-01 | 1986-07-30 | 鞍山钢铁公司 | The ultrahigh-temperature abrasion-resistant cast nickel based alloy |
| CN1258756A (en) * | 1999-12-17 | 2000-07-05 | 黄进峰 | High-temperature high-strength antioxidant anticorrosive austenite alloy |
| CN1831165A (en) * | 2005-03-03 | 2006-09-13 | 大同特殊钢株式会社 | Nonmagnetic high-hardness alloy |
| CN101864531A (en) * | 2008-12-25 | 2010-10-20 | 住友金属工业株式会社 | Austenitic heat resistant alloy |
Non-Patent Citations (3)
| Title |
|---|
| 夏玉宇 主编: "《化学实验室手册》", 30 June 2015 * |
| 栾恩杰 等: "《国防科技名词大典 综合》", 31 January 2002 * |
| 耿洪滨 等: "《新编工程材料》", 30 September 2000 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107254615A (en) * | 2017-06-27 | 2017-10-17 | 南京律智诚专利技术开发有限公司 | A kind of alloy for being used to cast foreign-going ship propeller |
| CN109319079A (en) * | 2018-09-29 | 2019-02-12 | 武汉船用机械有限责任公司 | The guard method of propeller shaft |
| CN109252084A (en) * | 2018-11-28 | 2019-01-22 | 陕西宝锐金属有限公司 | A kind of preparation process of high-purity GH825 alloy fine grain plate |
| CN111377043A (en) * | 2020-03-25 | 2020-07-07 | 安徽志恒智能装备制造有限公司 | Propeller casting process and propeller |
| CN111842486A (en) * | 2020-06-24 | 2020-10-30 | 江苏圣珀新材料科技有限公司 | Cold rolling process of high-temperature alloy GH4169 |
| CN111842487A (en) * | 2020-06-24 | 2020-10-30 | 江苏圣珀新材料科技有限公司 | Cold rolling process of hastelloy C276 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106676364A (en) | Alloy used for manufacturing ship propeller shaft | |
| CN108456799B (en) | A kind of high-performance copper ferroalloy materials and its electroslag remelting preparation method | |
| CN102409213B (en) | Preparation method of high-strength magnesium alloy enhanced by heat treatment | |
| CN110396605A (en) | A kind of preparation method of wrought superalloy ingot casting | |
| CN110714156B (en) | Light high-strength corrosion-resistant high-entropy alloy and preparation method thereof | |
| CN104178648B (en) | The preparation method of the chromio bearing metal of ni-resist without magnetic | |
| CN109022896A (en) | Heat-resisting Cu-Fe-Y-Mg alloy material of a kind of high-strength highly-conductive with electromagnetic wave shielding performance and preparation method thereof | |
| CN108977710B (en) | Extrusion casting magnesium alloy material and preparation method thereof | |
| EP4092152A1 (en) | Steel for wind power gear with improved purity and reliability, and smelting method therefor | |
| CN105039817B (en) | The preparation method and multicomponent heat-resistant magnesium alloy of a kind of multicomponent heat-resistant magnesium alloy | |
| CN102605274B (en) | Steel for blade of turbine and manufacturing method of the steel | |
| CN105543644B (en) | Industrial reductor super large-scale pinion steel SCM822H manufacturing process | |
| CN105483323A (en) | Manufacturing method of 12Cr13 pipe blank for nuclear power plant reactor control rod drive mechanism | |
| CN106801146A (en) | A kind of electroslag remelting prepares nickel base superalloy hollow steel ingot apparatus and method for | |
| CN113416851B (en) | Preparation method of lanthanum-containing high-temperature alloy | |
| CN101709393A (en) | Method for preparing contact material having high performance and low mixed copper-chromium alloy content | |
| CN101396728A (en) | Manufacture method of steel ingot for million multikilowatt nuclear electricity pile core component | |
| CN108531815A (en) | High temperature bolt steel BG25Cr2MoVA and preparation method thereof | |
| CN109136753A (en) | A kind of manufacturing method of P80 high mirror-surface plastic die steel plate | |
| CN103526038A (en) | Electroslag remelting production method of high-strength high-plasticity TWIP (Twinning Induced Plasticity) steel | |
| Li et al. | High nitrogen austenitic stainless steels manufactured by nitrogen gas alloying and adding nitrided ferroalloys | |
| CN106676363A (en) | Novel high-temperature alloy casting production process | |
| CN114318165B (en) | Preparation method of rotor alloy capable of accurately controlling boron and nitrogen elements | |
| CN111139364A (en) | Manufacturing method of over 40 tons of 9Ni large steel ingots | |
| CN104975217A (en) | Production method of steel 42CrMo4+HH used for fuel gas electric generator connecting rods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |