CN101391372B - Gas cylinder dished head shaping technique - Google Patents

Gas cylinder dished head shaping technique Download PDF

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Publication number
CN101391372B
CN101391372B CN200810194842XA CN200810194842A CN101391372B CN 101391372 B CN101391372 B CN 101391372B CN 200810194842X A CN200810194842X A CN 200810194842XA CN 200810194842 A CN200810194842 A CN 200810194842A CN 101391372 B CN101391372 B CN 101391372B
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spinning
steel pipe
gas cylinder
dished
time
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CN200810194842XA
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CN101391372A (en
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米宽
武孟献
宫丽丽
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SINOMA TECHNOLOGY (CHENGDU) CO., LTD.
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Sinoma Science and Technology Suzhou Co Ltd
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Abstract

The invention provides a molding technique of a steel gas cylinder liner dished head, which adopts a multi-track multi-times roller spinning technique, wherein a semi-spherical structure head is firstly a molded; then a dished structure is formed by spinning process through the progressive approach method; the approaching amount and speed of each track in the processing is the key to the control. During bottom sealing, the adoption of the technique of twice-blowing and twice-combining reduces the bottom defects and make the gas cylinder safer and more reliable.

Description

Gas cylinder dished head shaping technique
Technical field
The present invention relates to a kind of moulding process of dished (torispherical) head of winding gas cylinder steel inner bag, belong to mechanical manufacturing field.
Background technology
The continuous deterioration of the shortage of oil and environment, make the positive develop actively gas-fueled vehicles in various countries, but because natural gas gas energy density is low, the fuel quantity that gas-fueled vehicles carry is less, general operating range is short than gasoline car, and therefore, we need study the volume increase technology of gas cylinder under equal length, compare the short problem of operating range to solve, embody the superiority of gas-fueled vehicles better with Fuel Petroleum.
Because gas cylinder is installed on the taxi boot, the installing space on its length direction is limited, so equal length, capacious gas cylinder, and filling weight is big, can improve the enforcement distance of automobile.At present, diameter is 338 millimeters on the market, and length is that 1020 millimeters composite gas cylinder volume is 68L, and this gas cylinder end enclosure structure is a hemispherical, and volume is not optimised for maximum.As shown in Figure 1, the winding gas cylinder steel inner bag of prior art includes an inner bag body 1, and its two ends all are dome head 2, also are provided with an opening 3 on one of them dome head.The moulding process of this type of gas cylinder is simple, and common scraper plate spinning machine can be produced; And gas cylinder stressed evenly, safety coefficient is higher, so this type of gas cylinder is the main flow in market at present.
Summary of the invention
The objective of the invention is to solve above-mentioned technical problem, provide a kind of be used to make safer, profile is more attractive in appearance, volume is bigger, the moulding process of the dished (torispherical) head of the gas cylinder of comprehensive low cost of manufacture.
Purpose of the present invention is achieved through the following technical solutions:
A kind of gas cylinder dished head shaping technique can be used for receiving the end and bottling technique, wherein receives bottom technique and may further comprise the steps:
At first pick up steel pipe and extend into the heating of heating in medium frequency stove with manipulator;
When the observed temperature of steel pipe reached design temperature, manipulator withdrawed from steel pipe from intermediate frequency furnace, then steel pipe was placed on the feeding mechanical;
Feeding mechanical is sent steel pipe into the main shaft of spinning machine, and chuck clamps the back main shaft to begin to rotate and drive steel pipe and rotate, insulation spray gun flame ignition, and the spinning roller of spinning machine is near the heated end of steel pipe, and because steel pipe contact spinning roller drives the spinning roller rotation;
Then the rocking arm of spinning machine begins to rotate, and X-axis and Z axle two-axle interlocking begin spinning process for the first time, and through behind the spinning of some passages, an end of steel pipe becomes the hemispherical of sealing;
Begin then to blow at the end for the first time, blow end burner faces toward steel pipe at a certain distance with angle hemispherical center ejection oxygen and acetylene generation thermal-flame, bottom center portion is heated to molten condition, and burner ejection high pressure oxygen blows the metal of molten condition off then;
After for the first time blowing the bear building-up bundle, an aperture appears in the bottom, and then passage of spinning, with aperture sealing and blank;
Then begin to blow at the end for the second time, blow end burner faces toward steel pipe at a certain distance with angle hemispherical center ejection oxygen and acetylene generation thermal-flame, bottom center portion is heated to molten condition, and burner ejection high pressure oxygen blows the metal of molten condition off then;
Then the rocking arm of spinning machine begins to rotate, and X-axis and Z axle two-axle interlocking begin spinning process for the third time, and through behind the spinning of some passages, the bottom shape of gas cylinder becomes dished (torispherical) head the most at last.
The present invention receives bottom technique except the dish that discloses a kind of gas cylinder, has also disclosed the dish-shaped bottling technique of this gas cylinder, may further comprise the steps: the heating of heating in medium frequency stove is picked up and extend into to manipulator with the other end that an end has formed the steel pipe of dished (torispherical) head;
When the observed temperature of steel pipe reached design temperature, manipulator withdrawed from steel pipe from intermediate frequency furnace, then steel pipe was placed on the feeding mechanical;
Feeding mechanical is sent steel pipe into the main shaft of spinning machine, and chuck clamps the back main shaft to begin to rotate and drive steel pipe and rotate, insulation spray gun flame ignition, and the spinning roller of spinning machine is near steel pipe, and because steel pipe contact spinning roller drives the spinning roller rotation;
Then the rocking arm of spinning machine begins to rotate, and X-axis and Z axle two-axle interlocking begin spinning process the 4th time, and through behind the spinning of some passages, the other end of steel pipe becomes the hemispherical of sealing;
Again through the spinning process of the 5th some passages, the oral area shape of gas cylinder is become dished (torispherical) head;
On boring, the dished (torispherical) head of screw thread manufacturing procedure, open an opening that is used for air inlet more at last at this end.
Further, the described steel pipe length that stretches into intermediate frequency furnace is 500 millimeters.The design temperature of described steel pipe is 1000 to spend between 1400.
Again further, in described receipts bottom technique, described angle of blowing end burner and bottle axis is the 10-40 degree when blowing the end for the first time, be 0 degree when blowing the end for the second time.
Further, described first time, spinning process needed the spinning of 12 passages.Described spinning process for the third time needs the spinning of 10 passages.Described the 4th spinning process needs the spinning of 12 passages.Described the 5th spinning process needs the spinning of 6 passages.
Beneficial effect of the present invention is mainly reflected in: the present invention mainly improves the volume of gas cylinder under the equal length from structure, unique design the version of many curves end socket, it is disc structure, be used for replacing traditional hemispherical head, to reduce the length of end socket, increase the volume of gas cylinder under the same length, make gas cylinder volume bring up to 70L, the same diameter gas cylinder volume improves 3%; And dish-like structure is carried out finite element analysis by finite element method, and guarantee that the end socket stress distribution is even, make design safety reliable; Simultaneously, many curves rotary pressed head moulding process of the present invention solves a dished (torispherical) head moulding spinning and a bottling technique key technology difficult problem, guarantees the precision and the uniformity of curve moulding, realizes the perfect adaptation of design and craft.Make finally that gas cylinder is safer, profile is more attractive in appearance, volume is bigger, comprehensive low cost of manufacture, embody better economy.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1: the schematic diagram of prior art dome head gas cylinder.
Fig. 2: the schematic diagram of dished (torispherical) head gas cylinder of the present invention.
Wherein: 1, gas cylinder body; 2, dome head; 3, opening; 4, dished (torispherical) head.
The specific embodiment
The present invention has disclosed a kind of manufacturing process with winding gas cylinder steel inner bag of dished (torispherical) head.As shown in Figure 2, this winding gas cylinder steel inner bag includes an inner bag body 1, and its two ends all are dished (torispherical) head 4, also are provided with an opening 3 on one of them dished (torispherical) head.Dished (torispherical) head is used for replacing traditional hemispherical head, to reduce the length of end socket, increases the volume of gas cylinder under the same length, makes gas cylinder volume bring up to 70L, and the same diameter gas cylinder volume improves 3 percent.Wherein, this manufacturing process comprises receipts bottom technique and bottling technique.So-called receipts bottom technique and bottling technique are the moulding process of two dished (torispherical) heads, and difference is that bottling technique is meant the moulding process of the dished (torispherical) head of band opening, receives the moulding process that bottom technique is meant the dished (torispherical) head of the other end.
Introduce respectively below and receive bottom technique and bottling technique.
The receipts bottom technique may further comprise the steps:
At first pick up steel pipe and extend into the heating of heating in medium frequency stove with manipulator; When the observed temperature of steel pipe reached design temperature, manipulator withdrawed from steel pipe from intermediate frequency furnace, then steel pipe was placed on the feeding mechanical; Feeding mechanical is sent steel pipe into the main shaft of spinning machine, and chuck clamps the back main shaft to begin to rotate and drive steel pipe and rotate, insulation spray gun flame ignition, and the spinning roller of spinning machine is near the heated end of steel pipe, and because steel pipe contact spinning roller drives the spinning roller rotation; Then the rocking arm of spinning machine begins to rotate, and X-axis and Z axle two-axle interlocking begin spinning process for the first time, and behind the spinning through 12 passages, an end of steel pipe becomes the hemispherical of sealing; Begin then to blow at the end for the first time, blow end burner faces toward steel pipe at a certain distance with angle hemispherical center ejection oxygen and acetylene generation thermal-flame, bottom center portion is heated to molten condition, and burner ejection high pressure oxygen blows the metal of molten condition off then; After for the first time blowing the bear building-up bundle, an aperture appears in the bottom, begins spinning process for the second time then, through the spinning of a passage, with aperture sealing and blank; Described blank is meant that spinning roller puts certain angle with certain amount of feeding, when the bottom is sealed, defective material or unnecessary material is cut away.
Then begin to blow at the end for the second time, blow end burner still faces toward steel pipe at a certain distance with angle hemispherical center ejection oxygen and acetylene generation thermal-flame, bottom center portion is heated to molten condition, and burner ejection high pressure oxygen blows the metal of molten condition off then; Then the rocking arm of spinning machine begins to rotate, and X-axis and Z axle two-axle interlocking begin spinning process for the third time, and behind the spinning through 10 passages, the bottom shape of gas cylinder becomes dished (torispherical) head the most at last.
In receiving bottom technique, the purpose of blowing the end is with defect of bad such as the slag inclusion fusing of bottom and blows off, can be understood as defective material is burnt.Blow the burner at the end and put the bottom with angle at a certain distance, with high temperature the bottom defective material is melted earlier, the bad material that will melt with high pressure blows off again, and the bottom just has an aperture, and then passage of spinning is sealed the bottom with material.Blowing for the second time the end also aperture can occur, and then spinning is sealed the bottom with material.It is similar blowing the end for twice, and the angle of just blowing end burner has trickle difference, and described angle of blowing end burner and bottle axis is the 10-40 degree when blowing the end for the first time, be 0 degree when blowing the end for the second time.
Bottling technique may further comprise the steps:
The heating of heating in medium frequency stove is picked up and extend into to manipulator with the other end that an end has formed the steel pipe of dished (torispherical) head; When the observed temperature of steel pipe reached design temperature, manipulator withdrawed from steel pipe from intermediate frequency furnace, then steel pipe was placed on the feeding mechanical; Feeding mechanical is sent steel pipe into the main shaft of spinning machine, and chuck clamps the back main shaft to begin to rotate and drive steel pipe and rotate, insulation spray gun flame ignition, and the spinning roller of spinning machine is near steel pipe, and because steel pipe contact spinning roller drives the spinning roller rotation; Then the rocking arm of spinning machine begins to rotate, and X-axis and Z axle two-axle interlocking begin spinning process the 4th time, and behind the spinning through 12 passages, the other end of steel pipe becomes the hemispherical of sealing; Again through the 5th spinning process of 6 passages, the oral area shape of gas cylinder is become dished (torispherical) head; The last opening of process again program is opened an opening that is used for air inlet on the dished (torispherical) head of this end.Described opening program comprises boring, screw thread manufacturing procedure.
Further, in the twice above-mentioned technology, the described steel pipe length that stretches into intermediate frequency furnace is 500 millimeters, and the design temperature of described steel pipe is 1000 to spend between 1400.
The key technology of disc structure end socket gas cylinder is end socket curve designing technique and rotary press modelling technology, because its end socket position force-bearing situation is than the hemispherical dome structure complexity, make the end socket curve relatively more difficult in design, must select through a large amount of parameters, carry out structural analysis by finite element then, carry out actual verification at last, repeated multiple times obtains best design parameter.Simultaneously the end socket of this structure also difficulty relatively when moulding is had relatively high expectations to equipment, frock and technological level, and common scraper plate spinning machine can not reach designing requirement, and equipment must have functions such as automatic temperature-adjusting control, multi-shaft interlocked, numerical control programming.Spinning process will constantly be groped, and finds the optimum value of technological parameters such as temperature, the amount of feeding, feed speed.The overall crudy of forming temperature and bottle is closely related, and the crystal grain that will avoid the material burning to cause in the processing is thick, also will note not fusion phenomenon of the low gas cylinder bottom that occurs of Yin Wendu simultaneously.Material was piled up before the amount of feeding caused blank unstability and spinning roller greatly easily, and the too small production efficiency that then influences, feed speed select the unreasonable fold etc. of occurring easily to influence the gas cylinder performance defect.
Seal head molding adopts the overall thermal rotary pressure technology, blank add the thermal recovery heating in medium frequency, the efficient and the temperature homogeneity of heating have been improved, through overtesting, processing characteristics was better when the blank processing temperature was controlled at 1000-1400 ℃, by at the bottom of the bottle and the bottleneck dissection and analysis can see that alloy streamline and fusion are in good condition, and are the normal alloy tissue.Multi-pass roller spinning is adopted in moulding, earlier it is shaped to dome-type structure end socket, adopts the method for successive approximation then, is spun into disc structure, and the amount of approaching of each passage and speed are the key of control in the process.Adopt the technology of blowing twice fusion in the end for twice during back cover, reduced the bottom defective, make gas cylinder safer and more.

Claims (10)

1. gas cylinder dished head shaping technique is characterized in that: may further comprise the steps,
At first pick up steel pipe and extend into the heating of heating in medium frequency stove with manipulator;
When the observed temperature of steel pipe reached design temperature, manipulator withdrawed from steel pipe from intermediate frequency furnace, then steel pipe was placed on the feeding mechanical;
Feeding mechanical is sent steel pipe into the main shaft of spinning machine, and chuck clamps the back main shaft to begin to rotate and drive steel pipe and rotate, insulation spray gun flame ignition, and the spinning roller of spinning machine is near the heated end of steel pipe, and because steel pipe contact spinning roller drives the spinning roller rotation;
Then the rocking arm of spinning machine begins to rotate, and X-axis and Z axle two-axle interlocking begin spinning process for the first time, and through behind the spinning of some passages, an end of steel pipe becomes the hemispherical of sealing;
Begin then to blow at the end for the first time, blow end burner faces toward steel pipe at a certain distance with angle hemispherical center ejection oxygen and acetylene generation thermal-flame, bottom center portion is heated to molten condition, and burner ejection high pressure oxygen blows the metal of molten condition off then;
After for the first time blowing the bear building-up bundle, an aperture appears in the bottom, begins spinning process for the second time then, through the spinning of a passage, with aperture sealing and blank;
Then begin to blow at the end for the second time, blow end burner faces toward steel pipe at a certain distance with angle hemispherical center ejection oxygen and acetylene generation thermal-flame, bottom center portion is heated to molten condition, and burner ejection high pressure oxygen blows the metal of molten condition off then;
Then the rocking arm of spinning machine begins to rotate, and X-axis and Z axle two-axle interlocking begin spinning process for the third time, and through behind the spinning of some passages, the bottom shape of gas cylinder becomes dished (torispherical) head the most at last.
2. gas cylinder dished head shaping technique according to claim 1 is characterized in that: the heating of heating in medium frequency stove is picked up and extend into to manipulator with the other end that an end has formed the steel pipe of dished (torispherical) head;
When the observed temperature of steel pipe reached design temperature, manipulator withdrawed from steel pipe from intermediate frequency furnace, then steel pipe was placed on the feeding mechanical;
Feeding mechanical is sent steel pipe into the main shaft of spinning machine, and chuck clamps the back main shaft to begin to rotate and drive steel pipe and rotate, insulation spray gun flame ignition, and the spinning roller of spinning machine is near steel pipe, and because steel pipe contact spinning roller drives the spinning roller rotation;
Then the rocking arm of spinning machine begins to rotate, and X-axis and Z axle two-axle interlocking begin spinning process the 4th time, and through behind the spinning of some passages, the other end of steel pipe becomes the hemispherical of sealing;
Again through the spinning process of the 5th some passages, the oral area shape of gas cylinder is become dished (torispherical) head;
The last opening of process again program is opened an opening that is used for air inlet on the dished (torispherical) head of this end.
3. any one gas cylinder dished head shaping technique according to claim 1 and 2 is characterized in that: the described steel pipe length that stretches into intermediate frequency furnace is 500 millimeters.
4. any one gas cylinder dished head shaping technique according to claim 1 and 2 is characterized in that: the design temperature of described steel pipe be 1000 spend to 1400 the degree between.
5. gas cylinder dished head shaping technique according to claim 1 is characterized in that: described angle of blowing end burner and bottle axis is the 10-40 degree when blowing the end for the first time, be 0 degree when blowing the end for the second time.
6. gas cylinder dished head shaping technique according to claim 1 is characterized in that: described first time spinning process needs 12 passages spinning.
7. gas cylinder dished head shaping technique according to claim 1 is characterized in that: the spinning of the described needs of spinning process for the third time 10 passages.
8. gas cylinder dished head shaping technique according to claim 2 is characterized in that: the spinning of described the 4th spinning process needs 12 passages.
9. gas cylinder dished head shaping technique according to claim 2 is characterized in that: the spinning of described the 5th spinning process needs 6 passages.
10. gas cylinder dished head shaping technique according to claim 2 is characterized in that: described opening program comprises boring, screw thread manufacturing procedure.
CN200810194842XA 2008-10-22 2008-10-22 Gas cylinder dished head shaping technique Active CN101391372B (en)

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CN101879563B (en) * 2010-06-25 2012-02-29 中材科技(苏州)有限公司 Liner end enclosure molding process of high-pressure hydrogen storage cylinder
CN101885137B (en) * 2010-07-21 2012-06-27 北京天海工业有限公司 Method for manufacturing aluminum liner of vehicular composite cylinder
CN102000747B (en) * 2010-09-21 2012-05-23 国营江北机械厂 Hot spinning bottom-finishing method of seamless gas cylinder by positive roller
CN101972808B (en) * 2010-10-18 2012-02-22 哈尔滨工业大学 Independent digital flame following and heating device of hot spinning machine
DE102010053634B4 (en) * 2010-12-07 2012-10-25 Leifeld Metal Spinning Ag A method for producing a tubular container and associated apparatus for forming a pipe section
CN102172702B (en) * 2011-03-09 2012-08-22 上海普丽盛包装股份有限公司 Manufacturing method of spinning seal head and seal ring
CN102615175A (en) * 2012-03-12 2012-08-01 宜兴市联丰化工机械有限公司 Processing method for alloy end enclosure
CN103537585A (en) * 2013-11-04 2014-01-29 洛阳双瑞特种装备有限公司 Forming and fabrication method of ultra-high strength steel seamless high pressure gas cylinder
CN106271390A (en) * 2015-05-29 2017-01-04 宝山钢铁股份有限公司 A kind of processing technique of lightweight water heater liner
CN105215632A (en) * 2015-09-17 2016-01-06 芜湖三花制冷配件有限公司 A kind of technique of metal tube rotary press modelling container

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Effective date of registration: 20170412

Address after: 18 Chengdu Province Industrial Park, Xinjin Province, the new material industry functional area of new materials, road, the road, 611430

Patentee after: SINOMA TECHNOLOGY (CHENGDU) CO., LTD.

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Patentee before: Sinoma Science & Technology (Suzhou) Co., Ltd.