CN106269980B - A kind of preparation process of seamless steel pipe - Google Patents
A kind of preparation process of seamless steel pipe Download PDFInfo
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- CN106269980B CN106269980B CN201610759511.0A CN201610759511A CN106269980B CN 106269980 B CN106269980 B CN 106269980B CN 201610759511 A CN201610759511 A CN 201610759511A CN 106269980 B CN106269980 B CN 106269980B
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- steel pipe
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- acid
- saponification
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000005554 pickling Methods 0.000 claims abstract description 25
- 238000007127 saponification reaction Methods 0.000 claims abstract description 21
- 238000000137 annealing Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 17
- 235000021110 pickles Nutrition 0.000 claims abstract description 15
- 230000032683 aging Effects 0.000 claims abstract description 13
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 8
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 8
- 239000005642 Oleic acid Substances 0.000 claims abstract description 8
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 8
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012964 benzotriazole Substances 0.000 claims abstract description 8
- 238000005098 hot rolling Methods 0.000 claims abstract description 8
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 8
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 8
- 239000003208 petroleum Substances 0.000 claims abstract description 8
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 8
- 239000011734 sodium Substances 0.000 claims abstract description 8
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- QDCPNGVVOWVKJG-VAWYXSNFSA-N 2-[(e)-dodec-1-enyl]butanedioic acid Chemical compound CCCCCCCCCC\C=C\C(C(O)=O)CC(O)=O QDCPNGVVOWVKJG-VAWYXSNFSA-N 0.000 claims abstract description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 36
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 26
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 15
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 7
- 238000004381 surface treatment Methods 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 6
- 229960000583 acetic acid Drugs 0.000 claims description 5
- 239000012362 glacial acetic acid Substances 0.000 claims description 5
- 235000006408 oxalic acid Nutrition 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000001384 succinic acid Substances 0.000 claims description 3
- 235000005979 Citrus limon Nutrition 0.000 claims 2
- 244000248349 Citrus limon Species 0.000 claims 1
- 244000131522 Citrus pyriformis Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009785 tube rolling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention relates to a kind of preparation processes of seamless steel pipe, include the following steps：1）Steel pipe pipe centering, then into eleven punch 11；2）Pipe after perforation is made annealing treatment；3）Pickling is carried out with pickle to the pipe after annealing, then carries out phosphatization, saponification and lubricated successively；Saponification liquor used in the saponification process includes petroleum sodium sulfonate, triethanolamine, oleic acid, dodecenylsuccinic acid, benzotriazole, machinery oil；4）Pipe after lubricated is subjected to hot rolling, ageing treatment is carried out after cooling, obtains steel pipe finished product, the processing step of the ageing treatment is that a. steel pipe pipes are put into stove, and temperature rises to 45 60 DEG C, keeps the temperature 0.2 0.5h；B. in-furnace temperature is risen to 150 180 DEG C, handles 0.5 1h；C. in-furnace temperature is down to 110 120 DEG C, keeps the temperature 1 1.5h.The present invention controls the parameter in each step, the bright and clean no pit point of steel pipe surface is high-quality, promotes product lumber recovery, reduces production cost by the way that processing step is rationally arranged.
Description
Technical field
The present invention relates to the preparation field of steel pipe more particularly to a kind of preparation processes of seamless steel pipe.
Background technology
With the continuous development of China's economy, the demand of seamless steel pipe is increasing.The processing technology of seamless steel pipe is such as
Application publication number be CN102921763A a kind of seamless steel pipe processing technology, including inspection, pickling, phosphatization, saponification, cold-drawn,
Reheating, sizing, back-end crop head, inspection, flaw detection processing, packaging and storage.But the tube quality that such processing method obtains is poor,
It is not durable.
For another example the Chinese patent of Patent No. CN102699103 disclosed a kind of 20CrMo steel pipes on October 3rd, 2012
Preparation method, processing step is brief, is beneficial to energy saving consumption, but in production process, often will appear steel pipe internal-surface
Or outer surface longitudinal cracking leads to the waste of steel, and martensite obtained once cracking just can not carry out subsequent processing
Steel pipe, hardness is very big, and toughness is small, it is difficult to process again.
For this purpose, applicant applied for a kind of martensite steel pipe application No. is 2013105081890 on January 25th, 2013
Preparation method the production of martensite steel pipe's production is solved the problems, such as by the improvement to technique, production cost is low, obtained horse
Family name's body tube quality is good, and hardness is low, and toughness is high, is suitble to that it is further processed.But the quality of Malpighian tube is still not
Ideal, surface point is on the high side, and product fraction defective is higher.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of preparation process of seamless steel pipe, and preparation process obtains
The bright and clean no pit point of steel pipe surface arrived, it is high-quality, product lumber recovery is promoted, production cost is reduced.
In order to reach the goal of the invention, the present invention adopts the following technical scheme that：A kind of preparation work of seamless steel pipe
Skill includes the following steps：1）Steel pipe pipe centering, then into eleven punch 11；2）Pipe after perforation is made annealing treatment；
3）Pickling is carried out with pickle to the pipe after annealing, then carries out phosphatization, saponification and lubricated successively；The saponification process
Saponification liquor used includes petroleum sodium sulfonate, triethanolamine, oleic acid, dodecenylsuccinic acid, benzotriazole, machinery oil；Profit
Sliding processing is handled using the mixture of glass powder, graphite, sodium carbonate；4）Pipe after lubricated is subjected to hot rolling, it is cold
But ageing treatment is carried out afterwards, obtains steel pipe finished product, the processing step of the ageing treatment is that a. steel pipe pipes are put into stove, temperature
45-60 DEG C is risen to, 0.2-0.5h is kept the temperature；B. in-furnace temperature is risen to 150-180 DEG C, handles 0.5-1h；C. in-furnace temperature is dropped
To 110-120 DEG C, 1-1.5h is kept the temperature.
Applicant has found that the outer surface pit point of steel pipe is on the high side, and such case occurs mostly in actual production
In step 3）Later, in process below, these pit points can not also be eliminated, in said program, by saponification
Liquid is improved, and can be effectively improved point situation, and combine the ageing treatment of segmented, tube quality is stablized.
Preferably, the saponification liquor is by mass percentage, including petroleum sodium sulfonate 42-55%, triethanolamine 3-9%,
Oleic acid 15-20%, dodecenylsuccinic acid 1-8%, benzotriazole 15-20%, surplus are machinery oil.
Preferably, in lubricated, glass powder, graphite, sodium carbonate mass parts be 1-3 parts of glass powder, graphite 0.1-1
Part, 0.1-0.3 parts of sodium carbonate are handled using the lubricant of the formula, can improve the point of steel tube surface.
Preferably, the pickle of the pickling is the mixed liquor of phosphoric acid, citric acid solution, Klorvess Liquid, it is described
A concentration of 10-15% of phosphoric acid, a concentration of 30-42% of citric acid solution.
The pickle of said program can improve pickling effect, can the rust on fully erased pipe surface, oxide skin, and will not
Corrosive is generated, ensures the concentration of the quality of steel pipe, especially phosphoric acid and citric acid, pickling effect is influenced very big.
Preferably, the volumetric mixture ratio of phosphoric acid in the pickle, citric acid, Klorvess Liquid is 3-5:2:1.
Preferably, the step 3）In pickling temperature be 38-45 DEG C, pickling time 20-25min.
In conjunction with the pickle of this programme, suitable pickling temperature can improve pickling effect, and pickling time is long to be caused
Steel pipe overpickling, the pipe surface of overpickling it is thick it is hot-tempered, color is dark, there is round pin hole when serious, when cold rolling, is easy roll banding or broken；Acid
Wash it is insufficient if cannot the rust on fully erased pipe surface, oxide skin, obtained steel pipe finished product resistance to corrosion is poor.
Preferably, the pipe after the hot rolling carries out at timeliness after thermal conduction plate and hot roll after natural cooling again
Reason.
Preferably, before the phosphorating treatment, pipe is surface-treated using surface treatment liquid, the surface treatment
Liquid includes oxalic acid, glacial acetic acid, mixed volume ratio 1:1-5.
The defects of corrosion caused by pipe pickling is uneven can be eliminated by carrying out surface treatment, be improved at phosphatization speed shortening
The time is managed, pipe is made to generate the uniform phosphate coating of compact crystallization in parkerizing process, while enhancing corrosion resisting property and improving painting
Film adhesive force reduces phosphating dregs.
Preferably, the annealing carries out under vacuum, the pit of steel tube surface can be improved to a certain extent
Point defect.
Preferably, the vacuum degree of the annealing vacuum condition is at least 2 × 10-2Pa。
Preferably, the material nickel content that the thermal conduction plate uses is 5%-12%, hot roll material uses 2Cr13NiMo.
It has been found that the generation of pit point, in addition to technologic influence, in Steel Tube Rolling, the thermal conduction plate of process
Influence is will also result in hot roll, the thermal conduction plate and hot roll used at present can lead to steel bonding, and pit, shadow are generated in steel tube surface
Tube quality is rung, the material of thermal conduction plate, hot roll can be solved the problems, such as this according to this programme.
By implementing above-mentioned technical proposal, the present invention has following advantageous effect：The present invention is by being rationally arranged technique
Step controls the parameter in each step, and the bright and clean no pit point of steel pipe surface is high-quality, promotes product lumber recovery, reduces production
Cost.
Specific implementation mode
Below by specific embodiment, invention is further described in detail.
Embodiment 1：
A kind of preparation process of seamless steel pipe, includes the following steps：1）It is 15mm, depth 10mm that steel pipe pipe, which punches diameter,
Centre bore, punching top is then preheated to 800 DEG C, into eleven punch 11 under conditions of temperature is 1000 DEG C；2）After perforating
Pipe be introduced into annealing furnace and made annealing treatment；3）Pipe after annealing is aligned, is then in temperature with pickle
38 DEG C of pickling 20min, pickle are the mixed liquor of phosphoric acid, citric acid solution, Klorvess Liquid, volumetric mixture ratio 3:2:1,
In, a concentration of the 10% of phosphoric acid, a concentration of the 30% of citric acid；With the steel pipe after high pressure water washing pickling after pickling, then into
Row phosphorating treatment 25min, treatment temperature are 55 DEG C, have handled and have been rinsed well steel tube surface phosphating solution with water, have then carried out soap
Change is handled, saponification liquor by mass percentage, including petroleum sodium sulfonate 42%, triethanolamine 3%, oleic acid 15%, laurylene base fourth two
Acid 1%, benzotriazole 15%, surplus are machinery oil；Be lubricated processing after saponification process, lubricant include 1 part of glass powder,
0.1 part of graphite, 0.1 part of sodium carbonate；4）Pipe is subjected to hot rolling, ageing treatment is carried out after cooling, obtains seamless steel pipe finished product, institute
The processing step for stating ageing treatment is that a. steel pipe pipes are put into stove, and temperature rises to 60 DEG C, keeps the temperature 0.5h；B. by in-furnace temperature liter
To 180 DEG C, 1h is handled；C. in-furnace temperature is down to 120 DEG C, keeps the temperature 1.5h.
Embodiment 2：
A kind of preparation process of seamless steel pipe, includes the following steps：1）It is 15mm, depth 10mm that steel pipe pipe, which punches diameter,
Centre bore, punching top is then preheated to 800 DEG C, into eleven punch 11 under conditions of temperature is 1000 DEG C；2）After perforating
Pipe be introduced into annealing furnace and carry out vacuum annealing process, vacuum degree is 2 × 10-2Pa；3）Pipe after annealing is aligned,
Then it is 45 DEG C of pickling 25min in temperature with pickle, pickle is the mixed liquor of phosphoric acid, citric acid solution, Klorvess Liquid,
Volumetric mixture ratio is 5:2:1, wherein a concentration of the 15% of phosphoric acid, a concentration of the 42% of citric acid；High pressure water washing is used after pickling
Steel pipe after pickling, then pipe surface be surface-treated, surface treatment liquid includes oxalic acid, glacial acetic acid, volume ratio 1:3,
Then phosphorating treatment 20min is carried out, treatment temperature is 50 DEG C, has handled and has been rinsed well steel tube surface phosphating solution with water, then
Carry out saponification process, saponification liquor by mass percentage, including petroleum sodium sulfonate 55%, triethanolamine 9%, oleic acid 20%, laurylene
Base succinic acid 8%, benzotriazole 20%, surplus are machinery oil；It is lubricated processing after saponification process, lubricant includes glass
3 parts of powder, 0.3 part of graphite, 0.2 part of sodium carbonate；4）Pipe is subjected to hot rolling, ageing treatment is carried out after cooling, obtains steel pipe finished product,
The processing step of the ageing treatment is that a. steel pipe pipes are put into stove, and temperature rises to 45 DEG C, keeps the temperature 0.2h；B. by in-furnace temperature
150 DEG C are risen to, 0.5h is handled；C. in-furnace temperature is down to 110 DEG C, keeps the temperature 1h.
Embodiment 3：
A kind of preparation process of seamless steel pipe, includes the following steps：1）It is 15mm, depth 10mm that steel pipe pipe, which punches diameter,
Centre bore, punching top is then preheated to 800 DEG C, into eleven punch 11 under conditions of temperature is 1000 DEG C；2）After perforating
Pipe be introduced into annealing furnace and carry out vacuum annealing process, vacuum degree is 3 × 10-2Pa；3）Pipe after annealing is aligned,
Then it is 38 DEG C of pickling 25min in temperature with pickle, pickle is the mixed liquor of phosphoric acid, citric acid solution, Klorvess Liquid,
Volumetric mixture ratio is 3:2:1, wherein a concentration of the 15% of phosphoric acid, a concentration of the 30% of citric acid；High pressure water washing is used after pickling
Steel pipe after pickling, then pipe surface be surface-treated, surface treatment liquid includes oxalic acid, glacial acetic acid, volume ratio 1:1,
Then phosphorating treatment 20min is carried out, treatment temperature is 50 DEG C, has handled and has been rinsed well steel tube surface phosphating solution with water, then
Carry out saponification process, saponification liquor by mass percentage, including petroleum sodium sulfonate 55%, triethanolamine 3%, oleic acid 20%, laurylene
Base succinic acid 1%, benzotriazole 20%, surplus are machinery oil；It is lubricated processing after saponification process, lubricant includes glass
2 parts of powder, 0.6 part of graphite, 0.3 part of sodium carbonate；4）Pipe is subjected to hot rolling, by thermal conduction plate and hot roll, natural cooling is laggard
Row ageing treatment obtains steel pipe finished product, and the material nickel content that the thermal conduction plate uses is 5%-12%, and the present embodiment selects 8%, heat
Roll material uses 2Cr13NiMo；The processing step of the ageing treatment is that a. steel pipe pipes are put into stove, and temperature rises to 60
DEG C, keep the temperature 0.2h；B. in-furnace temperature is risen to 180 DEG C, handles 0.5h；C. in-furnace temperature is down to 120 DEG C, keeps the temperature 1h.
Claims (5)
1. a kind of preparation process of seamless steel pipe, which is characterized in that include the following steps：1）Steel pipe pipe centering, then
Into eleven punch 11；2）Vacuum annealing process is carried out to the pipe after perforation, vacuum degree is to be at least 2 × 10-2Pa；3）After annealing
Pipe carries out pickling with pickle, then carries out phosphatization, saponification and lubricated successively；Saponification liquor used in the saponification process
Including petroleum sodium sulfonate, triethanolamine, oleic acid, dodecenylsuccinic acid, benzotriazole, machinery oil；Lubricated uses glass
Glass powder, graphite, sodium carbonate mixture handled；4）Pipe after lubricated is subjected to hot rolling, timeliness is carried out after cooling
Processing obtains steel pipe finished product, and the processing step of the ageing treatment is that a. steel pipe pipes are put into stove, and temperature rises to 45-60 DEG C,
Keep the temperature 0.2-0.5h；B. in-furnace temperature is risen to 150-180 DEG C, handles 0.5-1h；C. in-furnace temperature is down to 110-120 DEG C,
Keep the temperature 1-1.5h；
The saponification liquor by mass percentage, including petroleum sodium sulfonate 42-55%, triethanolamine 3-9%, oleic acid 15-20%, ten
Dialkylene succinic acid 1-8%, benzotriazole 15-20%, surplus are machinery oil；
The pickle of the pickling is the mixed liquor of phosphoric acid, citric acid solution, Klorvess Liquid, the phosphoric acid it is a concentration of
10-15%, a concentration of 30-42% of citric acid solution；
Pipe after the hot rolling carries out ageing treatment again after thermal conduction plate and hot roll after natural cooling；
For the material nickel content that the thermal conduction plate uses for 5%-12%, hot roll material uses 2Cr13NiMo.
2. a kind of preparation process of seamless steel pipe according to claim 1, which is characterized in that phosphoric acid, lemon in the pickle
Lemon acid, Klorvess Liquid volumetric mixture ratio be 3-5:2:1.
3. a kind of preparation process of seamless steel pipe according to claim 1, which is characterized in that step 3）In pickling temperature be
38-45 DEG C, pickling time 20-25min.
4. a kind of preparation process of seamless steel pipe according to claim 1, which is characterized in that before the phosphorating treatment, use
Surface treatment liquid is surface-treated pipe, and the surface treatment liquid includes oxalic acid, glacial acetic acid.
5. a kind of preparation process of seamless steel pipe according to claim 4, which is characterized in that the oxalic acid and glacial acetic acid it is mixed
It is 1 to close volume ratio:1-5.
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| CN111036882A (en) * | 2019-12-17 | 2020-04-21 | 江西云泰铜业有限公司 | Method for processing special-shaped copper bar |
| CN112893470B (en) * | 2021-01-20 | 2022-11-08 | 杭州淳通新材料科技有限公司 | Seamless steel tube forming process |
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| DE3311629C2 (en) * | 1983-03-28 | 1986-08-14 | Mannesmann AG, 4000 Düsseldorf | Process for the production of seamless steel tubes |
| ZA963198B (en) * | 1995-05-16 | 1996-10-25 | Timcal Ltd | Lubricant composition for use on workpieces in the hot forming of metals |
| CN1288227C (en) * | 2004-12-30 | 2006-12-06 | 周永宽 | Lubricant for cold drawing steel pipe |
| CN101811149B (en) * | 2010-04-14 | 2012-05-23 | 新兴铸管股份有限公司 | Manufacturing method of high alloy seamless steel tube |
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