CN108817289A - A kind of forging method for setting head four-way valve - Google Patents
A kind of forging method for setting head four-way valve Download PDFInfo
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- CN108817289A CN108817289A CN201810557084.7A CN201810557084A CN108817289A CN 108817289 A CN108817289 A CN 108817289A CN 201810557084 A CN201810557084 A CN 201810557084A CN 108817289 A CN108817289 A CN 108817289A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/20—Making machine elements valve parts
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of forging method for setting head four-way valve, including upset for the first time, pulling for the first time, second upset, second of pulling, third time be upset and third time pulling.The forging method of tree head four-way valve of the invention can effectively improve the intensity of tree head four-way valve, the hyperbaric environment of 15kpsi can be reached, and yield strength is greater than 700MPa, tensile strength is greater than 800MPa, elongation after fracture is greater than 25%, the contraction percentage of area is greater than 70%, and impact test KV8, average value is greater than 80J.Obtained tree head four-way valve, can satisfy the production of the deep-sea 3000m or less, the characteristic with high pressure resistant (15kpsi).
Description
Technical field
The present invention relates to a kind of forging methods for setting head four-way valve.
Background technique
At present in the development process of deep-sea oil gas resource, deep-sea subsea production tree equipment application is very extensive, and in depth
There is vital effect in extra large petrol resources exploitation.
The flow and pressure of well head when submerged production tree device is mainly used for controlling oil/gas well production, as realization offshore oil
The essential important equipment of gas field development, working condition directly determine the operating status of entire subsea production system.Closely
The usage amount of Nian Lai, submerged production tree device are significantly increased year by year, under different waters, different oil field blocks and oil-recovery operations operating condition
Used subsea production tree type of device is different.
Currently used for the production tree in oil-field well head device, be adopted a split structure by main valve, four-way and paraffin valve it is logical
It crosses ring flange, stud, double nut and tightly assembles.
Wherein, tree head four-way valve is subsea production tree series valve body core component.It is required to meet the deep-sea 3000m or less
Production, the characteristic with high pressure resistant (15kpsi) and heavy caliber (476mm well head).
Therefore, it is necessary to a kind of forging methods for setting head four-way valve to solve the above problems.
Summary of the invention
The present invention in view of the drawbacks of the prior art, provides a kind of forging method for setting head four-way valve.
In order to solve the above technical problems, technical solution used by the forging method of tree head four-way valve of the invention is：
A kind of forging method for setting head four-way valve, includes the following steps：
1), according to the size selection plum blossom ingot of tree head four-way valve, plum blossom ingot is heated to 800-1250 DEG C, by plum blossom ingot
Bottom cover and riser excision, obtain blank.
2), the blank for obtaining step 1) carries out axial upset, obtains the first middle material, the diameter and height of the first middle material
Spending ratio is：1.24-1.625；
3), the first middle material for obtaining step 2) carries out whole pulling processing along axial, obtains the second middle material,
In, forging ratio 1.62-1.72；
4), the second middle material for obtaining step 3) carries out axial upset processing, obtains third middle material, wherein forging
Than for 1.62-1.72；
5) the third middle material that step 4) obtains, is subjected to whole pulling processing along axial, obtains the 4th middle material,
In, forging ratio 1.62-1.72；
6), the 4th middle material for obtaining step 5) carries out axial upset processing, obtains the 5th middle material, wherein forging
Than for 1.62-1.72；
7), the both ends for the 5th middle material that step 6) obtains are subjected to pulling processing respectively in axial direction, obtain tree head four-way
Valve coarse fodder, wherein forging ratio 1.72-5.75；
8), to the both ends excision remainder punching of tree head four-way valve coarse fodder, tree head four-way valve is obtained.
Further, forging ratio is 1.81 or 4.87 in step 7).
Further, excision bottom cover is the 2%-4% of plum blossom ingot gross weight in step 1), and excision cutting head is plum blossom ingot gross weight
12%-16%.
Further, the material of the plum blossom ingot is made of the component of following mass percentage content：0.28%~
0.33% carbon, 0.2%~0.3% silicon, 0.5%~0.6% manganese, 0.9%~1.0% chromium, 0.3%~0.45% molybdenum, 0~
0.02% phosphorus, 0~0.02% sulphur, 0.3~0.50% nickel, 0.04~0.045% vanadium, 0~0.02% bronze medal, 0.2~0.4% aluminium,
0.3~0.5% cobalt, remaining is Fe.
Beneficial effect：The forging method of tree head four-way valve of the invention can effectively improve the intensity of tree head four-way valve, make
Its hyperbaric environment that can reach 15kpsi, and yield strength is greater than 700MPa, tensile strength is greater than 800MPa, elongation after fracture
Greater than 25%, the contraction percentage of area is greater than 70%, and impact test KV8, average value is greater than 80J.Obtained tree head four-way valve, Neng Gouman
The sufficient deep-sea 3000m or less production, the characteristic with high pressure resistant (15kpsi).
Detailed description of the invention
Fig. 1 is the process flow chart of the forging method of tree head four-way valve of the invention.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
It the present invention rather than limits the scope of the invention, after the present invention has been read, those skilled in the art are to of the invention each
The modification of kind equivalent form falls within the application range as defined in the appended claims.
Embodiment 1：
The forging method of the tree head four-way valve of tree head four-way valve of the invention, includes the following steps：
1), according to the size selection plum blossom ingot of tree head four-way valve, the material of plum blossom ingot is by following mass percentage content
Component composition：0.28%~0.33% carbon, 0.2%~0.3% silicon, 0.5%~0.6% manganese, 0.9%~1.0% chromium, 0.3%
~0.45% molybdenum, 0~0.02% phosphorus, 0~0.02% sulphur, 0.3~0.50% nickel, 0.04~0.045% vanadium, 0~0.02% bronze medal,
0.2~0.4% aluminium, 0.3~0.5% cobalt, remaining is Fe.Plum blossom ingot is heated to 800-1250 DEG C.By the bottom cover of plum blossom ingot and
Riser excision, obtains blank；The 2%-4% that bottom cover is plum blossom ingot gross weight is cut off, excision cutting head is the 12%- of plum blossom ingot gross weight
16%.
2), the blank for obtaining step 1) carries out axial upset, obtains the first middle material, the diameter of the first middle material is
1800mm is highly 1450mm, and the diameter and height of the first middle material are than being 1.24；
3), the first middle material for obtaining step 2) carries out whole pulling processing along axial, obtains the second middle material,
In, forging ratio 1.62；
4), the second middle material for obtaining step 3) carries out axial upset processing, obtains third middle material, wherein forging
Than being 1.62；
5) the third middle material that step 4) obtains, is subjected to whole pulling processing along axial, obtains the 4th middle material,
In, forging ratio 1.62；
6), the 4th middle material for obtaining step 5) carries out axial upset processing, obtains the 5th middle material, wherein forging
Than being 1.62；
7), the both ends for the 5th middle material that step 6) obtains are subjected to pulling processing respectively in axial direction, obtain tree head four-way
Valve coarse fodder, wherein forging ratio 1.72；
8), to the both ends excision remainder punching of tree head four-way valve coarse fodder, tree head four-way valve is obtained.
Wherein, total forging ratio is 1.62*1.62*1.62*1.62*1.72=11.84.
Embodiment 2：
The forging method of the tree head four-way valve of tree head four-way valve of the invention, includes the following steps：
1), according to the size selection plum blossom ingot of tree head four-way valve, the material of plum blossom ingot is by following mass percentage content
Component composition：0.28%~0.33% carbon, 0.2%~0.3% silicon, 0.5%~0.6% manganese, 0.9%~1.0% chromium, 0.3%
~0.45% molybdenum, 0~0.02% phosphorus, 0~0.02% sulphur, 0.3~0.50% nickel, 0.04~0.045% vanadium, 0~0.02% bronze medal,
0.2~0.4% aluminium, 0.3~0.5% cobalt, remaining is Fe.Plum blossom ingot is heated to 800-1250 DEG C.By the bottom cover of plum blossom ingot and
Riser excision, obtains blank；The 2%-4% that bottom cover is plum blossom ingot gross weight is cut off, excision cutting head is the 12%- of plum blossom ingot gross weight
16%.
2), the blank for obtaining step 1) carries out axial upset, obtains the first middle material, the diameter of the first middle material is
1800mm is highly 1450mm, and the diameter and height of the first middle material are than being 1.24；
3), the first middle material for obtaining step 2) carries out whole pulling processing along axial, obtains the second middle material,
In, forging ratio 1.72；
4), the second middle material for obtaining step 3) carries out axial upset processing, obtains third middle material, wherein forging
Than being 1.72；
5) the third middle material that step 4) obtains, is subjected to whole pulling processing along axial, obtains the 4th middle material,
In, forging ratio 1.72；
6), the 4th middle material for obtaining step 5) carries out axial upset processing, obtains the 5th middle material, wherein forging
Than being 1.72；
7), the both ends for the 5th middle material that step 6) obtains are subjected to pulling processing respectively in axial direction, obtain tree head four-way
Valve coarse fodder, wherein forging ratio 4.87；
8), to the both ends excision remainder punching of tree head four-way valve coarse fodder, tree head four-way valve is obtained.
Wherein, total forging ratio is 1.72*1.72*1.72*1.72*4.87=24.78.
Embodiment 3：
The forging method of the tree head four-way valve of tree head four-way valve of the invention, includes the following steps：
1), according to the size selection plum blossom ingot of tree head four-way valve, the material of plum blossom ingot is by following mass percentage content
Component composition：0.28%~0.33% carbon, 0.2%~0.3% silicon, 0.5%~0.6% manganese, 0.9%~1.0% chromium, 0.3%
~0.45% molybdenum, 0~0.02% phosphorus, 0~0.02% sulphur, 0.3~0.50% nickel, 0.04~0.045% vanadium, 0~0.02% bronze medal,
0.2~0.4% aluminium, 0.3~0.5% cobalt, remaining is Fe.Plum blossom ingot is heated to 800-1250 DEG C.By the bottom cover of plum blossom ingot and
Riser excision, obtains blank；The 2%-4% that bottom cover is plum blossom ingot gross weight is cut off, excision cutting head is the 12%- of plum blossom ingot gross weight
16%.
2), the blank for obtaining step 1) carries out axial upset, obtains the first middle material, the diameter of the first middle material is
1300mm is highly 800mm, and the diameter and height of the first middle material are than being 1.625；
3), the first middle material for obtaining step 2) carries out whole pulling processing along axial, obtains the second middle material,
In, forging ratio 1.65；
4), the second middle material for obtaining step 3) carries out axial upset processing, obtains third middle material, wherein forging
Than being 1.65；
5) the third middle material that step 4) obtains, is subjected to whole pulling processing along axial, obtains the 4th middle material,
In, forging ratio 1.65；
6), the 4th middle material for obtaining step 5) carries out axial upset processing, obtains the 5th middle material, wherein forging
Than being 1.65；
7), the both ends for the 5th middle material that step 6) obtains are subjected to pulling processing respectively in axial direction, obtain tree head four-way
Valve coarse fodder, wherein forging ratio 1.81；
8), to the both ends excision remainder punching of tree head four-way valve coarse fodder, tree head four-way valve is obtained.
Wherein, total forging ratio is 1.65*1.65*1.65*1.65*1.81=13.42.
Embodiment 4：
The forging method of the tree head four-way valve of tree head four-way valve of the invention, includes the following steps：
1), according to the size selection plum blossom ingot of tree head four-way valve, the material of plum blossom ingot is by following mass percentage content
Component composition：0.28%~0.33% carbon, 0.2%~0.3% silicon, 0.5%~0.6% manganese, 0.9%~1.0% chromium, 0.3%
~0.45% molybdenum, 0~0.02% phosphorus, 0~0.02% sulphur, 0.3~0.50% nickel, 0.04~0.045% vanadium, 0~0.02% bronze medal,
0.2~0.4% aluminium, 0.3~0.5% cobalt, remaining is Fe.Plum blossom ingot is heated to 800-1250 DEG C.By the bottom cover of plum blossom ingot and
Riser excision, obtains blank；The 2%-4% that bottom cover is plum blossom ingot gross weight is cut off, excision cutting head is the 12%- of plum blossom ingot gross weight
16%.
2), the blank for obtaining step 1) carries out axial upset, obtains the first middle material, the diameter of the first middle material is
1300mm is highly 800mm, and the diameter and height of the first middle material are than being 1.625；
3), the first middle material for obtaining step 2) carries out whole pulling processing along axial, obtains the second middle material,
In, forging ratio 1.72；
4), the second middle material for obtaining step 3) carries out axial upset processing, obtains third middle material, wherein forging
Than being 1.72；
5) the third middle material that step 4) obtains, is subjected to whole pulling processing along axial, obtains the 4th middle material,
In, forging ratio 1.72；
6), the 4th middle material for obtaining step 5) carries out axial upset processing, obtains the 5th middle material, wherein forging
Than being 1.72；
7), the both ends for the 5th middle material that step 6) obtains are subjected to pulling processing respectively in axial direction, obtain tree head four-way
Valve coarse fodder, wherein forging ratio 5.75；
8), to the both ends excision remainder punching of tree head four-way valve coarse fodder, tree head four-way valve is obtained.
Wherein, total forging ratio is 1.72*1.72*1.72*1.72*5.75=50.32.
Comparative result：
Using application No. is：201210539319.2 entitled：The manufacture of deep-sea oil recovery equipment valve seat steel forgings
Tree of water cooling described in the method/air-cooled quenching technical of circular gap three times to embodiment 1, embodiment 2, embodiment 3 and embodiment 4
Head four-way valve carries out quenching heat treatment, and carries out comprehensive mechanical property test to the tree head four-way valve Jing Guo quenching heat treatment, obtains
To table 1.
Table 1
Test result comprehensive analysis：
The forging method that the present invention uses, by combining specific ingot material and axial specific forging ratio combination,
Effectively the defects of loose, hole, crackle inside steel ingot, is closed in forging, improves the consistency and continuity of metal axial.Significantly
Its tensile strength, yield strength, elongation percentage and the contraction percentage of area are enhanced, and ballistic work is much higher than the level of the prior art.
The forging method of tree head four-way valve of the invention can effectively improve the intensity of tree head four-way valve, can reach
The hyperbaric environment of 15kpsi, and yield strength is greater than 700MPa, tensile strength is greater than 800MPa, and elongation after fracture is greater than 25%,
The contraction percentage of area is greater than 70%, and impact test KV8, average value is greater than 80J.Obtain tree head four-way valve, can satisfy 3000m with
Lower deep-sea production, the characteristic with high pressure resistant (15kpsi).
Claims (4)
1. a kind of forging method for setting head four-way valve, it is characterised in that：Include the following steps：
1), according to the size selection plum blossom ingot of tree head four-way valve, plum blossom ingot is heated to 800-1250 DEG C, by the bottom cover of plum blossom ingot
It is cut off with riser, obtains blank.
2), the blank for obtaining step 1) carries out axial upset, obtains the first middle material, the diameter and height ratio of the first middle material
For：1.24-1.625；
3), the first middle material for obtaining step 2) carries out whole pulling processing along axial, obtains the second middle material, wherein forging
It makes than for 1.62-1.72；
4) the second middle material for, obtaining step 3) carries out axial upset processing, obtains third middle material, wherein forging ratio is
1.62-1.72；
5) the third middle material that step 4) obtains, is subjected to whole pulling processing along axial, obtains the 4th middle material, wherein forging
It makes than for 1.62-1.72；
6) the 4th middle material for, obtaining step 5) carries out axial upset processing, obtains the 5th middle material, wherein forging ratio is
1.62-1.72；
7), the both ends for the 5th middle material that step 6) obtains are subjected to pulling processing respectively in axial direction, it is thick obtains tree head four-way valve
Material, wherein forging ratio 1.72-5.75；
8), to the both ends excision remainder punching of tree head four-way valve coarse fodder, tree head four-way valve is obtained.
2. the forging method of tree head four-way valve as described in claim 1, it is characterised in that：In step 7) forging ratio be 1.81 or
4.87。
3. the forging method of tree head four-way valve as described in claim 1, it is characterised in that：Excision bottom cover is plum blossom in step 1)
The 2%-4% of ingot gross weight, excision cutting head are the 12%-16% of plum blossom ingot gross weight.
4. the forging method of tree head four-way valve as described in claim 1, it is characterised in that：The material of the plum blossom ingot is by following
The component of mass percentage content forms：0.28%~0.33% carbon, 0.2%~0.3% silicon, 0.5%~0.6% manganese, 0.9%
~1.0% chromium, 0.3%~0.45% molybdenum, 0~0.02% phosphorus, 0~0.02% sulphur, 0.3~0.50% nickel, 0.04~0.045%
Vanadium, 0~0.02% bronze medal, 0.2~0.4% aluminium, 0.3~0.5% cobalt, remaining is Fe.
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| CN201810557084.7A CN108817289A (en) | 2018-06-01 | 2018-06-01 | A kind of forging method for setting head four-way valve |
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