CN100494763C - Circular winding layer reinforced CNG air bottle of steel lining fibre material for vehicle and its production - Google Patents
Circular winding layer reinforced CNG air bottle of steel lining fibre material for vehicle and its production Download PDFInfo
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- CN100494763C CN100494763C CNB2007100783088A CN200710078308A CN100494763C CN 100494763 C CN100494763 C CN 100494763C CN B2007100783088 A CNB2007100783088 A CN B2007100783088A CN 200710078308 A CN200710078308 A CN 200710078308A CN 100494763 C CN100494763 C CN 100494763C
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Abstract
It is a hoop winding strengthening CNG air bottle which is made of car-use fibrous material and pressure vessel. The current ZL03134797.5 proprietary technology has the lack of shape-change coordinating layer, bed solidity, complex structure and manufacturing method, high cost which is facing. It provides a simple structure and manufacturing method. There is rolling layer on the out-side layer of the cylinder between the bottom and the sealing surface, vexing the impregnate continuous filament under certain strain and then heating the impregnate solidified strengthening CNG air bottle. Its merits lie in light weight, high capacity ratio, high weary life and more appropriation to the car and cargo.
Description
One, technical field
The present invention relates to automobile-used pressurized container, especially a kind of automobile-used Steel Lining lamination coating hoop winding layer strengthens CNG gas cylinder and manufacture method.
Two, background technique
Countries in the world government payes attention to the development of gas combustion automobile especially, and the development gas combustion automobile just needs the equipment of gas combustion automobile: gas cylinder, i.e. and vehicle CNG gas cylinder, the working pressure of car bottle is 20MPa.The type of vehicle CNG gas cylinder mainly is divided into two big classes at present: a steel gas cylinder; Another kind of is the composite material gas cylinder---the full aluminum liner CNG gas cylinder that twines; Full plastic inner lining CNG gas cylinder that twines and liner fibrous composite strengthen the CNG gas cylinder.
Steel gas cylinder is to use early and widely used a kind of gas cylinder, can be divided into again dashing from the manufacturing process of steel gas cylinder and pull out bottle and glass tube vial, and its advantage is that preparation process is simple, and price is low, but shortcomings such as unit weight height, perishable, poor stability are also arranged.The price height of the full aluminum liner CNG gas cylinder that twines is difficult for applying; The Security instability of the full plastic inner lining CNG gas cylinder that twines, present less application, deficiencys such as while manufacturing process complexity.At number of patent application is 03134797.5, " a kind of fiber winding composite material pressure container and manufacture method " patented technology is disclosed, adopted the compatibility of deformation layer is arranged between full winding structure, liner and the filament wound composite, fibrous composite on the liner with vertically and hoop alternately twines, the layer of composite fiber winding layer with layer between be embedded with compatibility of deformation layer, multi-shell curing, its structure and manufacture method complexity, deficiencys such as cost height.
Three, summary of the invention
It is simple to the purpose of this invention is to provide a kind of structure and manufacture method, at the bottom of the bottle and on the gas cylinder cylinder outer wall between two circular arcs of bottleneck winding layer is being arranged, the liquid resinous continuous fiber of dipping is layed onto on the metal inner lining according to pre-set line style shop under certain tension force, makes the enhancing CNG gas cylinder of resin solidification then by heating.
Technological scheme that purpose of the present invention adopts is, its structure is made up of gas cylinder and winding layer, and the cylinder outer wall hoop between the bottle end of gas cylinder and two circular arcs of bottleneck has winding layer.
The present invention, the gas cylinder material is 30CrMo or 35CrMo, and Steel Lining diameter D is Φ 273mm-Φ 406mm, and length L is 990mm-12000mm, and the thickness δ 2 of Steel Lining pipe is 4.5mm-9.5mm.
The present invention, winding layer adopts glass fibre, or carbon fiber, or glass fibre/carbon fiber composite fiber; Winding layer thickness δ 1 is 2.5mm---9.5mm.
The present invention, the manufacture method step is as follows:
A., the gas cylinder Steel Lining is installed: the gas cylinder Steel Lining is installed in the Stetch Wrapping Machine frame installs on the station;
B. prepare cured resin: by weight with CYD127 epoxy resin: methyl tetrahydro phthalic anhydride (MeTHPA): N, N-dimethyl benzylamine (BDMA)=100:85:1 is put into the cured resin for preparing the resin machine for storing of Stetch Wrapping Machine;
C. twine and prepare: the fiber that (I) twines usefulness is three kinds: a kind of is glass fibre; Second kind is carbon fiber; The third is the composite fiber of a certain proportion of glass fibre/carbon fiber; When (II) twining at every turn, a kind of with in aforementioned three kinds of fibers is with the form of three bundle fibers, simultaneously by the resin machine for storing and allow behind the fiber impregnation liquid resin, fixing around gas cylinder Steel Lining and knotting with it by the hitch frame of Stetch Wrapping Machine again;
D. twine: Stetch Wrapping Machine makes the rotation of gas cylinder Steel Lining will flood liquid resinous fibrous ring to being wrapped on the gas cylinder Steel Lining, fibrous ring is that 80 °-90 °, winding tension are that the thickness of 30-120N/ group, fiber winding layer is 2.5mm-9.5mm to the angle of twining, and hoop winding scope is the cylinder outer wall hoop between two circular arcs of the bottle end of gas cylinder and bottleneck;
E. solidify: will twine the back gas cylinder and install on the continuous curing oven from the Stetch Wrapping Machine frame, the rotary tooling of the winding gas cylinder of frame dress is shifted onto in the curing oven, starts curing oven, 140 ℃ ± 3 ℃-75 ℃ ± 3 ℃ of solidifying temperatures, 260 minutes ± 2 minutes time;
F. hydraulic pressure and residual deformation test: after earlier gas cylinder being weighed, weigh after adding water again; To carry out self-tightening after installed by trial jar, hydraulic pressure boosts and pressurize is tested, and simultaneously gas cylinder gross weight, total inflow behind the gas cylinder hydraulic pressure is measured, and is calculated the gas cylinder rate of residual, measures the actual volume of gas cylinder behind the hydraulic pressure then; Test parameters: gas cylinder is from compaction forces 33-38MPa, 1 minute dwell time, and gas cylinder by hydrostatic pressure test pressure 25-45MPa, 1 minute dwell time, gas cylinder rate of residual≤5% is qualified;
G. packing is put in storage: will apply the qualified gas cylinder packing warehouse-in of self-tightening stress through hydraulic pressure.
The present invention, fiber winding composite material pressure container is to be made by the continuous winding that the fiber behind the insulating varnish carries out on liner from level to level.In winding process, apply certain force of strain and can make inner bag be in compressing stress state, thus the fatigue behaviour of raising container.Simultaneously, under the winding tension effect, after the layer of fibers that is wrapped with all the layer of fibers that is wrapped with is earlier produced radial pressure, force radially to produce compressive strain, thereby inner fiber fluffed.If adopt constant winding tension, make the goods layer of fibers produce the outer tight phenomenon of interior pine, thereby make internal and external layer fiber initial stress produce very big difference.
In winding process, winding tension is a key process parameter, and the performance of it and goods is closely related.The method of tension force of simply successively decreasing considers just that also fiber stress changes in the winding process, can not take all factors into consideration the influence of liner rigidity, solidification internal stress etc., causes composite layer along wall thickness direction stress distribution inequality, reduces the intensity and the fatigue behaviour of container.Adopt the tension force system successively successively decrease, though after the layer of fibers that is wrapped with the layer of fibers that is wrapped with is earlier still had the effect of cutting down preliminary tension, can make the tension force after back one deck and preceding one deck are cut down identical.So, can realize that just whole winding layers from inside to outside have identical preliminary tension, are improved fiber winding composite material pressure container product strength and performance.
It is simple in structure, gives full play to the high-strength characteristic that fiber has, strengthen the vehicle gas cylinder housing liner be in elastic stage bear in pressure energy power, the fatigue behaviour and the safety in utilization of raising vehicle CNG gas cylinder, reliable performance, characteristics such as in light weight.Being more suitable for also meeting the development trend of automobile light weight in the user demand of car, passenger car, is the developing direction of automobile-used natural gas CNG gas cylinder.
Four, description of drawings
Further specify the present invention below in conjunction with accompanying drawing.
Accompanying drawing is a sectional structure schematic representation of the present invention.
Among the figure: 4-gas cylinder at the bottom of the 1-bottleneck 2-winding layer 3-bottle
Five, embodiment
As shown in drawings,, to form by gas cylinder 4 and winding layer 2, the cylinder outer wall hoop between the bottle end 3 of its gas cylinder 4 and two circular arcs of bottleneck 1 has winding layer 2.Gas cylinder 4 materials are 30CrMo or 35CrMo.Winding layer 2 adopts glass fibre, or carbon fiber, or glass fibre/carbon fiber composite fiber, and winding layer 2 thickness δ 1 are 2.5mm---9.5mm.
Manufacture method embodiment: the 30CrMo material is made gas cylinder be installed in U.S. BOLENZ ﹠amp; On three special winding machine frame liner stations of SCHAFER company, CYD127 epoxy resin by weight preparation: methyl tetrahydro phthalic anhydride (MeTHPA): N, N-dimethyl benzylamine (BDMA)=100:85:1, the cured resin for preparing is put into the resin machine for storing of Stetch Wrapping Machine, with toray T700SC-12K and Dong Bang UT500-12K carbon fiber; Make three (bundle) fibers respectively by the resin machine for storing and allow behind the fiber impregnation liquid resin, by the hitch frame of Stetch Wrapping Machine that it is fixing around Steel Lining and knotting again, Stetch Wrapping Machine makes the rotation of gas cylinder Steel Lining will flood liquid resinous fibrous ring to being wrapped on the Steel Lining, fibrous ring is 80 ° to the angle of twining, winding tension is a 60N/ group, the thickness of carbon fiber winding layer is 5mm, hoop is wrapped in the cylinder outer wall hoop between two circular arcs of the bottle end and bottleneck of gas cylinder, to twine the back gas cylinder installs on the continuous curing oven from twining frame, the rotary tooling of the winding gas cylinder of frame dress is shifted onto in the curing oven, select corresponding program curing, start curing oven, curing apparatus (as the special chain step curing oven of liking that woods equipment company of association produces) is special chain step curing oven, divide 3 warm areas, length is than being 7:7:6, whole curing oven chain stepping rate unanimity, gas cylinder is 7:7:6 in the working time of 3 warm areas, curing process parameter sees the following form
| The 1st warm area | The 2nd warm area | The 3rd warm area |
| 110 ℃ ± 3 ℃, 90 ± 2 minutes | 140 ℃ ± 3 ℃, 90 ± 2 minutes | 75 ℃ ± 3 ℃, 78 ± 2 minutes |
Goods after solidifying are put into hydrostatic testing machine to carry out hydraulic pressure and applies self-tightening stress, in the hydrostatic test of producing in Jinan testing machine factory, write down gas cylinder number in order, carry out weighing after water is weighed, added to gas cylinder, carry out record, carry out after installed by trial jar that self-tightening, hydraulic pressure boost, pressurize, write down gas cylinder gross weight behind the gas cylinder hydraulic pressure, total inflow, calculate actual volume behind gas cylinder rate of residual, the hydraulic pressure.Process parameter: gas cylinder is from compaction forces 33-38MPa, 1 minute dwell time; Gas cylinder by hydrostatic pressure test pressure 25-45MPa, 1 minute dwell time, gas cylinder rate of residual≤5% is qualified.Accurate recording hydraulic test pressure, dwell time in the process of the test, full deformation values of gas cylinder volume and gas cylinder value of residual volumetric deformation will apply the qualified gas cylinder packing warehouse-in of self-tightening layer power through hydraulic pressure at last.
Claims (1)
1, a kind of automobile-used Steel Lining lamination coating hoop winding layer strengthens CNG gas cylinder manufacture method, it is characterized in that the manufacture method step is as follows:
A., the gas cylinder Steel Lining is installed: the gas cylinder Steel Lining is installed in the Stetch Wrapping Machine frame installs on the station;
B. prepare cured resin: by weight with CYD127 epoxy resin: methyl tetrahydro phthalic anhydride (MeTHPA): N, N-dimethyl benzylamine (BDMA)=100:85:1 is put into the cured resin for preparing the resin machine for storing of Stetch Wrapping Machine;
C. twine and prepare: the fiber that (I) twines usefulness is three kinds: a kind of is glass fibre; Second kind is carbon fiber; The third is the composite fiber of a certain proportion of glass fibre/carbon fiber; When (II) twining at every turn, a kind of with in aforementioned three kinds of fibers is with the form of three bundle fibers, simultaneously by the resin machine for storing and allow behind the fiber impregnation liquid resin, fixing around gas cylinder Steel Lining and knotting with it by the hitch frame of Stetch Wrapping Machine again;
D. twine: Stetch Wrapping Machine makes the rotation of gas cylinder Steel Lining will flood liquid resinous fibrous ring to being wrapped on the gas cylinder Steel Lining, fibrous ring is that 80 °-90 °, winding tension are that the thickness of 30-120N/ group, fiber winding layer is 2.5mm-9.5mm to the angle of twining, and hoop winding scope is the cylinder outer wall hoop between two circular arcs of the bottle end of gas cylinder and bottleneck;
E. solidify: will twine the back gas cylinder and install on the continuous curing oven from the Stetch Wrapping Machine frame, the rotary tooling of the winding gas cylinder of frame dress is shifted onto in the curing oven, starts curing oven, 140 ℃ ± 3 ℃-75 ℃ ± 3 ℃ of solidifying temperatures, 260 minutes ± 2 minutes time;
F. hydraulic pressure and residual deformation test: after earlier gas cylinder being weighed, weigh after adding water again; To carry out self-tightening after installed by trial jar, hydraulic pressure boosts and pressurize is tested, and simultaneously gas cylinder gross weight, total inflow behind the gas cylinder hydraulic pressure is measured, and is calculated the gas cylinder rate of residual, measures the actual volume of gas cylinder behind the hydraulic pressure then; Test parameters: gas cylinder is from compaction forces 33-38MPa, 1 minute dwell time, and gas cylinder by hydrostatic pressure test pressure 25-45MPa, 1 minute dwell time, gas cylinder rate of residual≤5% is qualified;
G. packing is put in storage: will apply the qualified gas cylinder packing warehouse-in of self-tightening stress through hydraulic pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100783088A CN100494763C (en) | 2007-03-21 | 2007-03-21 | Circular winding layer reinforced CNG air bottle of steel lining fibre material for vehicle and its production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100783088A CN100494763C (en) | 2007-03-21 | 2007-03-21 | Circular winding layer reinforced CNG air bottle of steel lining fibre material for vehicle and its production |
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| CN101029707A CN101029707A (en) | 2007-09-05 |
| CN100494763C true CN100494763C (en) | 2009-06-03 |
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