CN114012367A - Preparation method of integrated seamless steel cylinder - Google Patents
Preparation method of integrated seamless steel cylinder Download PDFInfo
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- CN114012367A CN114012367A CN202111431390.4A CN202111431390A CN114012367A CN 114012367 A CN114012367 A CN 114012367A CN 202111431390 A CN202111431390 A CN 202111431390A CN 114012367 A CN114012367 A CN 114012367A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 155
- 239000010959 steel Substances 0.000 title claims abstract description 155
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000009987 spinning Methods 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 230000000750 progressive effect Effects 0.000 claims abstract description 5
- 238000005422 blasting Methods 0.000 claims description 34
- 238000005498 polishing Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 18
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 17
- 238000005406 washing Methods 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 13
- 238000007127 saponification reaction Methods 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000010622 cold drawing Methods 0.000 claims description 11
- 238000005553 drilling Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 239000006104 solid solution Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 6
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J12/00—Pressure vessels in general
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to the technical field of chamfering machine application, and discloses a preparation method of an integrated seamless steel cylinder, which comprises the following steps: the steel blank is cut, the steel blank is punched, the bottle body is polished, the heating spinning is finished, the bottle bottom is milled, the bottle mouth is heated and collected, the bottle mouth is drilled, finished products are polished and polished, the steel blank is parallel to the bottle body through a pressing die, the mouth is collected and finished in a layer-by-layer progressive mode, the two ends are made to be in a step shape, the thickness of a pressing module of a spinning machine is 0.5mm at each time until the bottle mouth and the bottle bottom are closed, the tensile force resistance of the bottle end face is better, the distance between a powder gun and the outer surface of a steel bottle main body, the relative movement speed and the numerical value matching between powder supply air pressure of the powder gun can guarantee that the thickness of a plastic powder coating is within the range of 80-130 mu m, the thickness range can guarantee that the plastic powder is solidified, the outer surface of the steel bottle can be fully protected, and the identification of the steel seal of the bottle body cannot be influenced.
Description
Technical Field
The invention relates to the technical field of chamfering machine application, in particular to a preparation method of an integrated seamless steel cylinder.
Background
The compressed gas steel cylinder is used as special equipment which is most applied in China, and is widely applied to the aspects of fire fighting, medical treatment, chemical research, food, urban construction, machinery and the like. In the early days, the high-pressure gas cylinders were mostly made of carbon steel, and although the strength of the high-pressure gas cylinders made of carbon steel was as high as 700MPa, the high-pressure gas cylinders made of carbon steel had poor corrosion resistance. At present, austenitic stainless steel, manganese steel and chromium molybdenum steel are commonly used as materials for preparing gas steel cylinders, at present, austenitic stainless steel materials are used as preparation materials of the steel cylinders in the preparation of a plurality of steel cylinders, the strength of austenitic stainless steel is low, the thickness of the austenitic stainless steel materials is increased by 1.5-2 times in order to ensure the safety and the service life of the steel cylinders under the high-pressure working condition, therefore, although the application of the austenitic stainless steel materials improves the corrosion resistance and the cleanliness of the inner walls of the steel cylinders, the thickness of the steel cylinders is obviously increased, the material consumption is increased, the production cost is increased, the quality of the steel cylinders is greatly increased due to the increase of the thickness, the transportation cost is improved, the working efficiency is reduced, as the cylinder cavities of the steel cylinders are semi-closed spaces, and fine metal chips and rust slag generated by adopting dry shot blasting easily stay and deposit at the bottle necks when the steel cylinders fall outwards, on the other hand, high-pressure seamless steel bottle can not carry out the processing of spraying paint to the bottle intracavity after the ball rust cleaning of throwing, therefore high-pressure seamless steel bottle inner wall produces the iron rust easily in long-term use, the mode of current conventional head and the tail binding off, generally one side and the contact of body heating one end that utilizes spinning-lathe suppression module, constantly change contact angle at body rotation in-process suppression module, the circulation is closed off and the ending at the bottom of the bottle to the bottleneck in proper order, be in too high pressure when the inside long-term of bottle, perhaps receive under the condition that the striking was emptyd, easily make the bottom of the bottle or the bottleneck department appear breaking, the influence is used.
Disclosure of Invention
The invention provides the following technical scheme: a preparation method of an integrated seamless steel cylinder is characterized by comprising the following steps: the method comprises the following steps: cutting a steel blank, stamping the steel blank, polishing a bottle body, heating, spinning and ending, milling a bottle bottom, heating and closing a bottle opening, drilling the bottle opening, and polishing a finished product.
S1, cutting the steel blank with the same length, and placing the steel blank on a punching machine for hole pressing after detection is finished;
s2, grinding the steel pipe punched in the step S1 for the first time, and polishing and grinding the inside of the steel pipe;
s3, performing electromagnetic heating on one end of the steel cylinder blank polished in the step S2, wherein the heating length is from the port to a position 150mm away from the port, the heating temperature is 1100 ℃, and the heating time is 2 min; spinning and bottom-closing the heated steel cylinder blank, wherein the rotating speed of a spinning main shaft is 380-400 r/min, bottom closing is completed once, the bottom closing time is 2min, a gas nozzle is used for heat compensation in the spinning process, and the outer flame temperature of the heat compensation gas nozzle is 1300-1400 ℃;
s4, carrying out primary acid washing, phosphorization and saponification treatment on the steel cylinder after ending, carrying out cold drawing on a cold drawing machine after the primary acid washing, phosphorization and saponification treatment is finished, and washing and trimming the bottom of the steel cylinder after the cold drawing is finished;
s5, repeating the steps S3 and S4 to close the bottle mouth, drilling holes after closing, and performing airtight and pressure-resistant detection on the bottle body after drilling;
and S6, finally, polishing and grinding the finished product and performing anti-rusting treatment.
Preferably, the polishing and shot blasting for the steel pipe in the step S2 comprises shot blasting for the inner surface of the steel cylinder and shot blasting for the outer surface of the steel cylinder; performing shot blasting rust removal on the inner surface of the steel cylinder by using a steel shot-shot blasting liquid mixture, wherein the shot blasting speed is 3-4 m/min, pouring the mixture of the steel shot and the shot blasting liquid in the cylinder cavity out of the steel cylinder within 1min after shot blasting, and then flushing the inner surface of the steel cylinder by using water; and performing shot blasting rust removal on the outer surface of the steel cylinder by using steel shots, wherein the shot blasting speed is 2-3 m/min.
Preferably, a roller type spinning machine is adopted for closing the bottle mouth and the bottle bottom and closing the bottle mouth and the bottle bottom in the steps S3 and S5, a pressing die is parallel to the bottle body, the closing is closed and closed in a layer-by-layer progressive mode, the two ends of the bottle body are stepped, and the forming thickness of a pressing module of the spinning machine is 0.5mm each time until the bottle mouth and the bottle bottom are closed.
Preferably, the acid washing, the phosphorization and the saponification in the step S4 are carried out in a manner that the acid washing time is 50 minutes, the phosphorization time is 10-20 minutes, and the saponification time is 5-20 minutes, the bottle body with the drilled bottle opening is heated in a solid solution furnace, the temperature is 1050-1100 ℃ in 3-5 hours, the temperature is kept for 30-40 minutes, and then rapid water cooling is immediately carried out.
Preferably, the steel cylinder obtained in step S5 is hermetically connected to a gas charging device, then the steel cylinder is completely immersed in the test water tank, compressed gas is charged into the steel cylinder to make the pressure in the steel cylinder reach 15MPa, after the pressure is maintained for 1min, whether bubbles are generated in the steel cylinder is observed, and the steel cylinder without bubbles is taken out of the test water tank and is intensively placed in the shade for drying.
Preferably, the final polishing of the finished product requires inputting one end of the steel cylinder into a polishing machine from a pipe inlet, polishing the seamless steel pipe for 2-3min, repeating the polishing for 2-3 times, detecting, taking the polished seamless steel pipe, detecting the surface smoothness, the inner diameter, the wall thickness and the like of the seamless steel pipe, and continuously polishing the unqualified seamless steel pipe.
Preferably, the plastic powder subjected to electrostatic treatment is sprayed onto the outer surface of the steel cylinder subjected to shot blasting and rust removal treatment by using a powder spraying gun, the distance between the powder spraying gun and the outer surface of the steel cylinder is 45-55 mm, the powder supply air pressure of the powder spraying gun is 0.15-0.3 MPa, the plastic powder is thermosetting plastic, the relative movement speed between the steel cylinder and the powder spraying gun is 0.8m/min, and the thickness of a plastic powder coating is 80-130 mu m.
Preferably, the steel cylinder sprayed with the plastic powder is sent into a curing furnace for curing, the temperature in the curing furnace is kept between 195 ℃ and 210 ℃, the steel cylinder is taken out after being cured in the curing furnace for 40min, the steel cylinder is naturally cooled to the room temperature, finally, a cylinder valve is installed at the cylinder opening of the steel cylinder, and then a finished product is packaged.
Advantageous effects
Compared with the prior art, the invention provides a preparation method of an integrated seamless steel cylinder, which has the following beneficial effects:
compared with the traditional heating furnace, the preparation method of the integrated seamless steel cylinder has the advantages that the heating speed is high, the working efficiency is higher, and the heating temperature is more stable through electromagnetic heating; the distance between the powder gun and the outer surface of the steel cylinder body, the relative movement speed and the powder supply air pressure of the powder gun are matched, so that the thickness of a plastic powder coating can be ensured to be within the range of 80-130 mu m, and the thickness range can ensure that the solidified plastic powder can fully protect the outer surface of the steel cylinder and can not influence the identification of the steel seal of the cylinder body.
According to the preparation method of the integrated seamless steel cylinder, the pressing die is parallel to the cylinder body, the closing-in is carried out in a layer-by-layer progressive mode, the two end surfaces are in a step shape, the forming thickness of the pressing module of the spinning machine is 0.5mm at each time until the closing-in is completed for the cylinder opening and the cylinder bottom, so that the tensile strength of the cylinder end surface is better in performance, the acid washing and the phosphorization saponification are adopted, and after the treatment is completed, the steel cylinder is directly subjected to cold drawing on the cold drawing machine to improve the surface smoothness of the steel cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A preparation method of an integrated seamless steel cylinder is characterized by comprising the following steps: the method comprises the following steps: cutting a steel blank, stamping the steel blank, polishing a bottle body, heating, spinning and ending, milling a bottle bottom, heating and closing a bottle opening, drilling the bottle opening, and polishing a finished product.
S1, cutting the steel blank with the same length, and placing the steel blank on a punching machine for hole pressing after detection is finished;
s2, grinding the steel pipe punched in the step S1 for the first time, and polishing and grinding the inside of the steel pipe;
s3, performing electromagnetic heating on one end of the steel cylinder blank polished in the step S2, wherein the heating length is from the port to a position 150mm away from the port, the heating temperature is 1100 ℃, and the heating time is 2 min; spinning and bottom-closing the heated steel cylinder blank, wherein the rotating speed of a spinning main shaft is 380-400 r/min, bottom closing is completed once, the bottom closing time is 2min, a gas nozzle is used for heat compensation in the spinning process, and the outer flame temperature of the heat compensation gas nozzle is 1300-1400 ℃;
s4, carrying out primary acid washing, phosphorization and saponification treatment on the steel cylinder after ending, carrying out cold drawing on a cold drawing machine after the primary acid washing, phosphorization and saponification treatment is finished, and washing and trimming the bottom of the steel cylinder after the cold drawing is finished;
s5, repeating the steps S3 and S4 to close the bottle mouth, drilling holes after closing, and performing airtight and pressure-resistant detection on the bottle body after drilling;
and S6, finally, polishing and grinding the finished product and performing anti-rusting treatment.
In order to polish and remove rust on the interior and the surface of the cylinder to a greater extent, in this embodiment, preferably, the step of polishing the steel pipe in the step S2 includes performing shot blasting on the inner surface of the steel cylinder and performing shot blasting on the outer surface of the steel cylinder; performing shot blasting rust removal on the inner surface of the steel cylinder by using a steel shot-shot blasting liquid mixture, wherein the shot blasting speed is 3-4 m/min, pouring the mixture of the steel shot and the shot blasting liquid in the cylinder cavity out of the steel cylinder within 1min after shot blasting, and then flushing the inner surface of the steel cylinder by using water; and performing shot blasting rust removal on the outer surface of the steel cylinder by using steel shots, wherein the shot blasting speed is 2-3 m/min.
In order to increase the tensile strength of the end face of the bottle body, in this embodiment, it is preferable that the closing and closing of the bottle mouth and the bottle bottom in steps S3 and S5 are performed by using a roller-type spinning machine, the pressing mold is parallel to the bottle body, and the closing is performed by using a layer-by-layer progressive manner, so that the two ends are stepped, and the thickness of the pressing module of the spinning machine is 0.5mm each time until the closing of the bottle mouth and the bottle bottom is completed.
In order to increase the smoothness of the surface of the bottle body and the inside of the bottle body, in the preferred embodiment, the step S4 is performed by acid washing, phosphorization and saponification in a manner that the acid washing time is 50 minutes, the phosphorization time is 10-20 minutes and the saponification time is 5-20 minutes, the bottle body with the drilled bottle opening is heated in a solution furnace, the temperature is increased to 1050-1100 ℃ in 3-5 hours, the temperature is kept for 30-40 min, and then rapid water cooling is immediately performed.
In order to detect the air tightness and the pressure resistance of the finished product and avoid the occurrence of defective products, in this embodiment, it is preferable that the steel cylinder obtained in step S5 is hermetically connected to a gas charging device, then the steel cylinder is completely immersed in the test water tank, compressed gas is charged into the steel cylinder to make the pressure in the cylinder reach 15MPa, after the pressure is maintained for 1min, whether bubbles are generated in the steel cylinder is observed, and the steel cylinder without bubbles is taken out of the test water tank and is intensively placed in the shade for drying.
In order to make the finished product more beautiful and smoother and cleaner in surface, it is preferable in this embodiment that the final polishing of the finished product requires that one end of the steel cylinder is input into a polishing machine from a pipe inlet, the polishing operation is performed on the seamless steel pipe, the time for finishing one-time polishing of the seamless steel pipe is 2-3min, the polishing is repeated for 2-3 times, then the detection is performed, the polished seamless steel pipe is taken, the surface smoothness, the inner diameter, the wall thickness and the like of the seamless steel pipe are detected, and the unqualified seamless steel pipe is continuously polished.
In order to protect and improve the surface of the steel cylinder and increase the visual appearance, in the embodiment, it is preferable that a powder gun is used for spraying the plastic powder subjected to electrostatic treatment onto the outer surface of the steel cylinder subjected to shot blasting and rust removal treatment, the distance between the powder gun and the outer surface of the steel cylinder is 45-55 mm, the powder supply pressure of the powder gun is 0.15-0.3 MPa, the plastic powder is thermosetting plastic, the relative movement speed between the steel cylinder and the powder gun is 0.8m/min, and the thickness of the plastic powder coating is 80-130 μm.
In order to increase the hardness of the surface powder spraying and enable the surface powder spraying to effectively protect the bottle body, in the embodiment, preferably, the steel bottle sprayed with the plastic powder is sent into a curing furnace for curing, the temperature in the curing furnace is kept between 195 ℃ and 210 ℃, the steel bottle is taken out after being cured in the curing furnace for 40min, is naturally cooled to room temperature, and finally, a bottle valve is installed at the bottle mouth of the steel bottle, and then the finished product is packaged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A preparation method of an integrated seamless steel cylinder is characterized by comprising the following steps: the method comprises the following steps: cutting a steel blank, stamping the steel blank, polishing a bottle body, heating, spinning and ending, milling a bottle bottom, heating and closing a bottle opening, drilling the bottle opening, and polishing a finished product.
S1, cutting the steel blank with the same length, and placing the steel blank on a punching machine for hole pressing after detection is finished;
s2, grinding the steel pipe punched in the step S1 for the first time, and polishing and grinding the inside of the steel pipe;
s3, performing electromagnetic heating on one end of the steel cylinder blank polished in the step S2, wherein the heating length is from the port to a position 150mm away from the port, the heating temperature is 1100 ℃, and the heating time is 2 min; spinning and bottom-closing the heated steel cylinder blank, wherein the rotating speed of a spinning main shaft is 380-400 r/min, bottom closing is completed once, the bottom closing time is 2min, a gas nozzle is used for heat compensation in the spinning process, and the outer flame temperature of the heat compensation gas nozzle is 1300-1400 ℃;
s4, carrying out primary acid washing, phosphorization and saponification treatment on the steel cylinder after ending, carrying out cold drawing on a cold drawing machine after the primary acid washing, phosphorization and saponification treatment is finished, and washing and trimming the bottom of the steel cylinder after the cold drawing is finished;
s5, repeating the steps S3 and S4 to close the bottle mouth, drilling holes after closing, and performing airtight and pressure-resistant detection on the bottle body after drilling;
and S6, finally, polishing and grinding the finished product and performing anti-rusting treatment.
2. The method for preparing an integral seamless steel cylinder according to claim 1, wherein the method comprises the following steps: polishing the steel pipe in the step S2, and performing shot blasting rust removal, wherein the shot blasting rust removal comprises shot blasting rust removal on the inner surface of the steel cylinder and shot blasting rust removal on the outer surface of the steel cylinder; performing shot blasting rust removal on the inner surface of the steel cylinder by using a steel shot-shot blasting liquid mixture, wherein the shot blasting speed is 3-4 m/min, pouring the mixture of the steel shot and the shot blasting liquid in the cylinder cavity out of the steel cylinder within 1min after shot blasting, and then flushing the inner surface of the steel cylinder by using water; and performing shot blasting rust removal on the outer surface of the steel cylinder by using steel shots, wherein the shot blasting speed is 2-3 m/min.
3. The method for preparing an integral seamless steel cylinder according to claim 1, wherein the method comprises the following steps: and (5) closing the bottle mouth and the bottle bottom and closing the bottle mouth and the bottle bottom in the steps S3 and S5 by adopting a roller type spinning machine, wherein a pressing mold is parallel to the bottle body, the closing is closed and closed in a layer-by-layer progressive mode, the two ends of the closing are stepped, and the pressing module of the spinning machine is shaped to have the thickness of 0.5mm each time until the bottle mouth and the bottle bottom are closed.
4. The method for preparing an integral seamless steel cylinder according to claim 1, wherein the method comprises the following steps: and step S4, carrying out acid washing, phosphorization and saponification in a manner that the acid washing time is 50 minutes, the phosphorization time is 10-20 minutes, and the saponification time is 5-20 minutes, heating the bottle body with the drilled bottle opening in a solid solution furnace for 3-5 hours to 1050-1100 ℃, preserving the heat for 30-40 minutes, and immediately carrying out rapid water cooling.
5. The method for preparing an integral seamless steel cylinder according to claim 1, wherein the method comprises the following steps: and (4) hermetically connecting the steel cylinder obtained in the step (S5) with a gas charging device, completely immersing the steel cylinder into a test water tank, charging compressed gas into the steel cylinder to enable the pressure in the steel cylinder to reach 15MPa, keeping the pressure for 1min, observing whether bubbles are generated in the steel cylinder, taking out the steel cylinder without bubbles out of the test water tank, and intensively placing and drying in the shade.
6. The method for preparing an integral seamless steel cylinder according to claim 1, wherein the method comprises the following steps: and (3) inputting one end of the steel cylinder into a polishing machine from a pipe inlet for polishing a finished product, polishing the seamless steel pipe, wherein the polishing time of the seamless steel pipe for one time is 2-3min, repeating polishing for 2-3 times, detecting, taking the polished seamless steel pipe, detecting the surface finish, the inner diameter, the wall thickness and the like of the seamless steel pipe, and continuously polishing the unqualified seamless steel pipe.
7. The method for preparing an integral seamless steel cylinder according to claim 1, wherein the method comprises the following steps: spraying the plastic powder subjected to electrostatic treatment onto the outer surface of the steel cylinder subjected to shot blasting rust removal treatment by using a powder spraying gun, wherein the distance between the powder spraying gun and the outer surface of the steel cylinder is 45-55 mm, the powder supply air pressure of the powder spraying gun is 0.15-0.3 MPa, the plastic powder is thermosetting plastic, the relative movement speed between the steel cylinder and the powder spraying gun is 0.8m/min, and the thickness of a plastic powder coating is 80-130 mu m.
8. The method for preparing an integral seamless steel cylinder according to claim 6, wherein the method comprises the following steps: and (3) conveying the steel cylinder sprayed with the plastic powder into a curing furnace for curing, keeping the temperature in the curing furnace between 195 ℃ and 210 ℃, taking out the steel cylinder after curing in the curing furnace for 40min, naturally cooling to room temperature, finally installing a cylinder valve at the cylinder mouth of the steel cylinder, and then packaging the finished product.
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| CN202111431390.4A CN114012367A (en) | 2021-11-29 | 2021-11-29 | Preparation method of integrated seamless steel cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147131A (en) * | 2022-02-10 | 2022-03-08 | 四川大学 | Homogenizing hot spinning forming method for large-diameter high-pressure gas cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5466907A (en) * | 1993-09-16 | 1995-11-14 | Praxair S.T. Technology, Inc. | Process for coating the internal surfaces of hollow bodies |
| CN101927421A (en) * | 2010-03-24 | 2010-12-29 | 浙江欧伦泰防火设备有限公司 | Cold-drawing processing method for making small-volume gas cylinder by seamless steel tube |
| CN103691789A (en) * | 2013-12-06 | 2014-04-02 | 天津重型装备工程研究有限公司 | Method for forming end enclosure of large-sized thick-wall cylindrical blank in hot spinning manner |
| CN105690039A (en) * | 2016-04-05 | 2016-06-22 | 山东天海高压容器有限公司 | Preparation method of high-pressure seamless steel cylinder |
| CN112246947A (en) * | 2020-09-28 | 2021-01-22 | 湖北三江航天江北机械工程有限公司 | Forming and processing method of titanium alloy high-pressure seamless gas cylinder for ships |
-
2021
- 2021-11-29 CN CN202111431390.4A patent/CN114012367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5466907A (en) * | 1993-09-16 | 1995-11-14 | Praxair S.T. Technology, Inc. | Process for coating the internal surfaces of hollow bodies |
| CN101927421A (en) * | 2010-03-24 | 2010-12-29 | 浙江欧伦泰防火设备有限公司 | Cold-drawing processing method for making small-volume gas cylinder by seamless steel tube |
| CN103691789A (en) * | 2013-12-06 | 2014-04-02 | 天津重型装备工程研究有限公司 | Method for forming end enclosure of large-sized thick-wall cylindrical blank in hot spinning manner |
| CN105690039A (en) * | 2016-04-05 | 2016-06-22 | 山东天海高压容器有限公司 | Preparation method of high-pressure seamless steel cylinder |
| CN112246947A (en) * | 2020-09-28 | 2021-01-22 | 湖北三江航天江北机械工程有限公司 | Forming and processing method of titanium alloy high-pressure seamless gas cylinder for ships |
Non-Patent Citations (1)
| Title |
|---|
| 鸿亿达旋压: "旋压收口", 《抖音》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147131A (en) * | 2022-02-10 | 2022-03-08 | 四川大学 | Homogenizing hot spinning forming method for large-diameter high-pressure gas cylinder |
| CN114147131B (en) * | 2022-02-10 | 2022-04-29 | 四川大学 | Homogenizing hot spinning forming method for large-diameter high-pressure gas cylinder |
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