CN104387661A - Integral injection-molded pressure-container seal head and preparation method thereof - Google Patents

Integral injection-molded pressure-container seal head and preparation method thereof Download PDF

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Publication number
CN104387661A
CN104387661A CN201410511572.6A CN201410511572A CN104387661A CN 104387661 A CN104387661 A CN 104387661A CN 201410511572 A CN201410511572 A CN 201410511572A CN 104387661 A CN104387661 A CN 104387661A
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China
Prior art keywords
pressure vessel
vessel head
injection molding
pressure
cap
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Application number
CN201410511572.6A
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Chinese (zh)
Inventor
邵银昌
陈炳祥
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Shao Yinchang
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Individual
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Priority to CN201410511572.6A priority Critical patent/CN104387661A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/76Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/56Stoppers or lids for bottles, jars, or the like, e.g. closures

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to an integral injection-molded pressure-container seal head and a preparation method thereof, and belongs to the technical field of processing of pressure container equipment. The pressure-container seal head is prepared from the following raw materials in percent by weight through integral injection molding of an injection molding machine: 50-70% of polypropylene K8003, 10-30% of rubber, 5-15% of white carbon black, and 5-15% of barium sulfate. The pressure-container seal head has the curvature radium of 40 cm or more and has a seamless integral structure. The beneficial effects comprise that compared with the prior art, the provided pressure-container seal head at least possesses the following technological effects: the bearing pressure is larger than 2 atmospheric pressure, the seal head has the curvature radium of 40 cm or more and is resistant to high pressure, the large-scale seal head is formed through integral injection molding of the injection molding machine, the whole body is a seamless structure, and the pressure-container seal head also has anticorrosion effect and batch production convenience.

Description

Integrated injection molding pressure vessel head and preparation method thereof
Technical field
The present invention relates to a kind of integrated injection molding pressure vessel head and preparation method thereof, belong to pressure vessel and equipment processing technique field.
Background technology
The pressurized vessel and the end socket thereof that are applied to chemical field in prior art are generally the various materials such as cast iron, cast steel or organic toughened glass.
The end socket of the pressurized vessel that the material such as cast iron, cast steel is made is general heavier.Meanwhile, the pressure vessel head used in chemical field, under the condition relating to chemical reaction, must be considered anticorrosive.And cast iron, cast steel manufacture in the process of pressure vessel head must ceaselessly casting sand type, manufacture inefficiency.
Organic toughened glass manufactures pressurized vessel and end socket has the high problem of manufacturing cost equally.The corrodibility of alkaline condition to glass is stronger simultaneously.And, glass tempering is brought equally to the problem manufacturing inefficiency.
Therefore, be necessary that design is a kind of and be convenient to the corrosion-resistant of volume production and the pressure vessel head that can use under elevated pressure conditions.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, provide a kind of integrated injection molding pressure vessel head, this pressure vessel head is lightweight, and resistance to compression is good, corrosion-resistant, good airproof performance, is easy to batch production.
Another object of the present invention is the preparation method providing a kind of integrated injection molding pressure vessel head.
A further object of the invention is to provide a kind of pressurized vessel containing above-mentioned pressure vessel head.
The technical solution adopted for the present invention to solve the technical problems is:
Integrated injection molding pressure vessel head, pressure-bearing is greater than 2 standard atmospheric pressures, described pressure vessel head is formed via injection moulding machine integrated injection molding by the raw material of following weight percents: polypropylene K8003 50-70%, rubber 10-30%, white carbon black 5-15%, barium sulfate 5-15%, the radius-of-curvature of described pressure vessel head is more than or equal to 40cm, in seamless one-piece construction.
As preferably, the weight percent of described raw material consists of: polypropylene K8003 60%, rubber 20%, white carbon black 10%, barium sulfate 10%.
As preferably, the diameter of the end socket of described pressurized vessel is 0.6-2.0m, and thickness is 0.5-3.0cm.
More preferably, the cap that described pressure vessel head comprises dome shape and the cover rim extended from cap circumference, the ratio of described cap evagination height and cap orthographicprojection diameter is less than 0.25.
More preferably, the thickness in described cover rim limit is greater than the thickness of cover rim and cap junction, and the step that described cover rim and cap are formed is of a size of 1mm-2.5mm.
A kind of preparation method of integrated injection molding pressure vessel head, the method is based on the huge adapted to injection system of injection volume, described adapted to injection system comprises the storing cylinder pressure of electrified heating system, plastic extrusion apparatus and end-sealing die, and described preparation method specifically carries out as follows:
(1) by electric heating system, storing cylinder pressure is heated, reach constant temperature process after preset temperature;
(2) polypropylene K8003, rubber, white carbon black and barium sulfate are placed in plastic extrusion apparatus, are transported in storing cylinder pressure after the melting sources in plastic extrusion apparatus, repeated multiple times, until the raw material in storing cylinder pressure reaches predetermined volume;
(3) raw material melted in storing cylinder pressure is pressed in end-sealing die;
(4) pressurize 10-30min, then cools end-sealing die, and after cooling, the demoulding is taken out, and obtains pressure vessel head.
As preferably, in step (1), during the constant temperature process of storing cylinder pressure, temperature maintains 132-140 DEG C; Step cools end-sealing die in (4), specifically: within the time of 10-15min, the temperature of end-sealing die is cooled to 40-50 DEG C.
As preferably, described end-sealing die comprises upper die and lower die, is equipped with cooling tube in upper die and lower die, and described cooling tube is communicated with cooling pool through pump, control valve.
A kind of pressurized vessel, comprise pressurized vessel body, also comprise pressure vessel head of the present invention, described pressure vessel head is fixedly connected with pressurized vessel body.
As preferably, described pressure vessel head welds with pressurized vessel body.
The invention has the beneficial effects as follows: compared with prior art, pressure vessel head provided by the invention at least has following technique effect: pressure-bearing is greater than 2 standard atmospheric pressures, high pressure resistant, large pressurized vessel end socket that pressure vessel head radius-of-curvature is greater than 40cm are formed by injection moulding machine integrated injection molding, overall in jointless structure, this pressure vessel head has the anticorrosive effect with being convenient to volume production simultaneously.
embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.The present invention's industrial chemicals used is all commercial convenient source.
embodiment 1:
Integrated injection molding pressure vessel head, pressure-bearing is greater than 2 standard atmospheric pressures, described pressure vessel head is formed through adapted to injection system integrated injection molding by the raw material of following weight percents: polypropylene K8003 50%, rubber 30%, white carbon black 15%, barium sulfate 5%, the radius-of-curvature of described pressure vessel head equals 40cm, in seamless one-piece construction, the diameter of the end socket of described pressurized vessel is 0.6m, and thickness is 0.5cm.
The pressure vessel head of the embodiment of the present invention 1 comprises the cap of dome shape and the cover rim from the extension of cap circumference, the ratio of described cap evagination height and cap orthographicprojection diameter is 0.22, the thickness in described cover rim limit is greater than the thickness of cover rim and cap junction, and the step that described cover rim and cap are formed is of a size of 1mm.
The preparation method of above-mentioned pressure vessel head, the method is based on the huge adapted to injection system of injection volume, and described adapted to injection system comprises the storing cylinder pressure of electrified heating system, plastic extrusion apparatus and end-sealing die, and described preparation method specifically carries out as follows:
(1) by electric heating system, storing cylinder pressure is heated, constant temperature process after reaching 132 DEG C;
(2) the polypropylene K8003 of formula ratio, rubber, white carbon black and barium sulfate are placed in plastic extrusion apparatus, are transported in storing cylinder pressure after the melting sources in plastic extrusion apparatus, repeated multiple times, until the raw material in storing cylinder pressure reaches predetermined volume;
(3) be pressed in end-sealing die by the raw material melted in storing cylinder pressure, described end-sealing die comprises upper die and lower die, is equipped with cooling tube in upper die and lower die, and described cooling tube is communicated with cooling pool through pump, control valve;
(4) pressurize 10min, then cools end-sealing die, within the time of 10min, the temperature of end-sealing die is cooled to 50 DEG C, after cooling, and the demoulding is taken out, and obtains pressure vessel head.
embodiment 2:
Integrated injection molding pressure vessel head, pressure-bearing is greater than 3 standard atmospheric pressures, described pressure vessel head is formed via injection moulding machine integrated injection molding by the raw material of following weight percents: polypropylene K8003 70%, rubber 10%, white carbon black 5%, barium sulfate 15%, the radius-of-curvature of described pressure vessel head equals 42cm, in seamless one-piece construction, the diameter of the end socket of described pressurized vessel is 2m, and thickness is 3.0cm.
The pressure vessel head of the embodiment of the present invention 2 comprises the cap of dome shape and the cover rim from the extension of cap circumference, the ratio of described cap evagination height and cap orthographicprojection diameter is 0.15, the thickness in described cover rim limit is greater than the thickness of cover rim and cap junction, and the step that described cover rim and cap are formed is of a size of 2.5mm.
The preparation method of above-mentioned pressure vessel head, the method is based on the huge adapted to injection system of injection volume, and described adapted to injection system comprises the storing cylinder pressure of electrified heating system, plastic extrusion apparatus and end-sealing die, and described preparation method specifically carries out as follows:
(1) by electric heating system, storing cylinder pressure is heated, constant temperature process after reaching 140 DEG C;
(2) the polypropylene K8003 of formula ratio, rubber, white carbon black and barium sulfate are placed in plastic extrusion apparatus, are transported in storing cylinder pressure after the melting sources in plastic extrusion apparatus, repeated multiple times, until the raw material in storing cylinder pressure reaches predetermined volume;
(3) be pressed in end-sealing die by the raw material melted in storing cylinder pressure, described end-sealing die comprises upper die and lower die, is equipped with cooling tube in upper die and lower die, and described cooling tube is communicated with cooling pool through pump, control valve;
(4) pressurize 30min, then cools end-sealing die, within the time of 15min, the temperature of end-sealing die is cooled to 40 DEG C, after cooling, and the demoulding is taken out, and obtains pressure vessel head.
embodiment 3:
Integrated injection molding pressure vessel head, pressure-bearing is greater than 4 standard atmospheric pressures, described pressure vessel head is formed via injection moulding machine integrated injection molding by the raw material of following weight percents: polypropylene K8003 60%, rubber 20%, white carbon black 10%, barium sulfate 10%, the radius-of-curvature of described pressure vessel head equals 40cm, in seamless one-piece construction, the diameter of the end socket of described pressurized vessel is 1.2m, and thickness is 2.0cm.
The pressure vessel head of the embodiment of the present invention 3 comprises the cap of dome shape and the cover rim from the extension of cap circumference, the ratio of described cap evagination height and cap orthographicprojection diameter is 0.20, the thickness in described cover rim limit is greater than the thickness of cover rim and cap junction, and the step that described cover rim and cap are formed is of a size of 2mm.
The preparation method of above-mentioned pressure vessel head, the method is based on the huge adapted to injection system of injection volume, and described adapted to injection system comprises the storing cylinder pressure of electrified heating system, plastic extrusion apparatus and end-sealing die, and described preparation method specifically carries out as follows:
(1) by electric heating system, storing cylinder pressure is heated, constant temperature process after reaching 135 DEG C;
(2) the polypropylene K8003 of formula ratio, rubber, white carbon black and barium sulfate are placed in plastic extrusion apparatus, are transported in storing cylinder pressure after the melting sources in plastic extrusion apparatus, repeated multiple times, until the raw material in storing cylinder pressure reaches predetermined volume;
(3) be pressed in end-sealing die by the raw material melted in storing cylinder pressure, described end-sealing die comprises upper die and lower die, is equipped with cooling tube in upper die and lower die, and described cooling tube is communicated with cooling pool through pump, control valve;
(4) pressurize 20min, then cools end-sealing die, within the time of 12min, the temperature of end-sealing die is cooled to 45 DEG C, after cooling, and the demoulding is taken out, and obtains pressure vessel head.
In order to set forth the present invention further, specifically consisting of of the adapted to injection system that injection volume used in the embodiment of the present invention 1 to 3 is huge: comprising: plastic extrusion apparatus, the vertical mould bases of upper die and lower die is installed, storing cylinder pressure, first hydro-cylinder, second hydro-cylinder, storing cylinder pressure is provided with entrance in bottom, this entrance is connected to the extrusion of plastic extrusion apparatus through the first control valve, the piston of storing cylinder pressure and the connection-rod linkage of the first hydro-cylinder, the outlet of storing cylinder pressure is communicated to the entrance of patrix by the second control valve, the connecting rod of the second hydro-cylinder is connected in vertical mould bases for installing the lower bolster of counterdie, storing cylinder pressure arranges electric heating system, when the connecting rod of the first hydro-cylinder moves down, the second closed electromagnetic valve, when the connecting rod of the first hydro-cylinder moves up, the second magnetic valve can be opened, upper die and lower die are provided with cooling system, cooling system comprises cooling tube, and this cooling tube is communicated to coolant reservoirs through pump, control valve, and the second hydro-cylinder is provided with several, uniform and the synchronization action of these second hydro-cylinders, plastic extrusion apparatus is plastics extruder or injection moulding machine.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.

Claims (10)

1. integrated injection molding pressure vessel head, pressure-bearing is greater than 2 standard atmospheric pressures, it is characterized in that: described pressure vessel head is formed by the raw material integrated injection molding of following weight percents: polypropylene K8003 50-70%, rubber 10-30%, white carbon black 5-15%, barium sulfate 5-15%, the radius-of-curvature of described pressure vessel head is more than or equal to 40cm, in seamless one-piece construction.
2. integrated injection molding pressure vessel head according to claim 1, is characterized in that: the weight percent of described raw material consists of: polypropylene K8003 60%, rubber 20%, white carbon black 10%, barium sulfate 10%.
3. integrated injection molding pressure vessel head according to claim 1 and 2, is characterized in that: the diameter of the end socket of described pressurized vessel is 0.6-2.0m, and thickness is 0.5-3.0cm.
4. integrated injection molding pressure vessel head according to claim 3, it is characterized in that, the cap that described pressure vessel head comprises dome shape and the cover rim extended from cap circumference, the ratio of described cap evagination height and cap orthographicprojection diameter is less than 0.25.
5. integrated injection molding pressure vessel head according to claim 4, is characterized in that: the thickness in described cover rim limit is greater than the thickness of cover rim and cap junction, and the step that described cover rim and cap are formed is of a size of 1mm-2.5mm.
6. the preparation method of the integrated injection molding pressure vessel head described in claim 1 to 5 any one, it is characterized in that: the method is based on the huge adapted to injection system of injection volume, described adapted to injection system comprises the storing cylinder pressure of electrified heating system, plastic extrusion apparatus and end-sealing die, and described preparation method specifically carries out as follows:
(1) by electric heating system, storing cylinder pressure is heated, reach constant temperature process after preset temperature;
(2) polypropylene K8003, rubber, white carbon black and barium sulfate are placed in plastic extrusion apparatus, are transported in storing cylinder pressure after the melting sources in plastic extrusion apparatus, repeated multiple times, until the raw material in storing cylinder pressure reaches predetermined volume;
(3) raw material melted in storing cylinder pressure is pressed in end-sealing die;
(4) pressurize 10-30min, then cools end-sealing die, and after cooling, the demoulding is taken out, and obtains pressure vessel head.
7. the preparation method of integrated injection molding pressure vessel head according to claim 6, is characterized in that: in step (1), during the constant temperature process of storing cylinder pressure, temperature maintains 132-140 DEG C; Step cools end-sealing die in (4), specifically: within the time of 10-15min, the temperature of end-sealing die is cooled to 40-50 DEG C.
8. the preparation method of integrated injection molding pressure vessel head according to claim 1, it is characterized in that: described end-sealing die comprises upper die and lower die, is equipped with cooling tube in upper die and lower die, described cooling tube is communicated with cooling pool through pump, control valve.
9. a pressurized vessel, comprises pressurized vessel body, it is characterized in that: also comprise the pressure vessel head described in claim 1 to 8 any one, and described pressure vessel head is fixedly connected with pressurized vessel body.
10. pressurized vessel according to claim 9, is characterized in that: described pressure vessel head welds with pressurized vessel body.
CN201410511572.6A 2014-09-29 2014-09-29 Integral injection-molded pressure-container seal head and preparation method thereof Pending CN104387661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410511572.6A CN104387661A (en) 2014-09-29 2014-09-29 Integral injection-molded pressure-container seal head and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201410511572.6A CN104387661A (en) 2014-09-29 2014-09-29 Integral injection-molded pressure-container seal head and preparation method thereof

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CN104387661A true CN104387661A (en) 2015-03-04

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1214110A (en) * 1996-03-20 1999-04-14 先进设施股份有限公司 Pressure vessels and end closures thereof
CN103328340A (en) * 2010-10-15 2013-09-25 埃克索鲁逊有限公司 A method for producing filled and reclosable pressure vessels
CN104029364A (en) * 2014-06-16 2014-09-10 邵银昌 Control method of injection molding system with huge injection amount
CN104033601A (en) * 2014-06-16 2014-09-10 邵银昌 Tank end cover and tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1214110A (en) * 1996-03-20 1999-04-14 先进设施股份有限公司 Pressure vessels and end closures thereof
CN103328340A (en) * 2010-10-15 2013-09-25 埃克索鲁逊有限公司 A method for producing filled and reclosable pressure vessels
CN104029364A (en) * 2014-06-16 2014-09-10 邵银昌 Control method of injection molding system with huge injection amount
CN104033601A (en) * 2014-06-16 2014-09-10 邵银昌 Tank end cover and tank

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Inventor before: Chen Bingxiang

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Address after: 2 1 unit 602, love court, Xin'An River Street, Jiande, Zhejiang, Hangzhou 311600, China

Applicant after: Shao Yinchang

Address before: 2 1 unit 602, love court, Xin'An River Street, Jiande, Zhejiang, Hangzhou 311600, China

Applicant before: Shao Yinchang

Applicant before: Chen Bingxiang

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Application publication date: 20150304

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