CN109367145A - A kind of accumulator diaphragm and its manufacturing method - Google Patents

A kind of accumulator diaphragm and its manufacturing method Download PDF

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Publication number
CN109367145A
CN109367145A CN201810935481.3A CN201810935481A CN109367145A CN 109367145 A CN109367145 A CN 109367145A CN 201810935481 A CN201810935481 A CN 201810935481A CN 109367145 A CN109367145 A CN 109367145A
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China
Prior art keywords
diaphragm
rubber
fluoroplastics
accumulator
molding
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CN201810935481.3A
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Chinese (zh)
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CN109367145B (en
Inventor
张万卿
马海瑞
李洪春
姜潮
贺平
李万军
魏辉
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Xian Aerospace Propulsion Institute
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Xian Aerospace Propulsion Institute
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/18—Layered products comprising a layer of natural or synthetic rubber comprising butyl or halobutyl rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/552—Fatigue strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Diaphragms And Bellows (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to a kind of hydraulic auxiliary and its manufacturing methods, and in particular to a kind of accumulator diaphragm and its manufacturing method, its object is to improve the resistance to overturning of product fatigue and service life.The accumulator diaphragm includes diaphragm of rubber and fluoroplastics diaphragm, and diaphragm of rubber is Nian Jie with fluoroplastics diaphragm and is molded sulfidization molding, and diaphragm of rubber is to accommodate section and diaphragm of rubber body by sealing ring, diaphragm to pass through the diaphragm of rubber of the semi-cure state of molding sulfidization molding.The diaphragm of rubber of semi-cure state is prepared first, semi-cure diaphragm of rubber and fluoroplastics diaphragm are bonded, by the fluoroplastics diaphragm and diaphragm of rubber molding sulfidization molding after bonding, without the overlap joint between rubber, membrane surface is bright and clean smooth, and resistance to overturning fatigue behaviour is good, it can overturn 220,000 times, long service life, particularly suitable for performance requirement height, in the space station accumulator more demanding to leakproofness and resistance to overturning fatigability.

Description

A kind of accumulator diaphragm and its manufacturing method
Technical field
The present invention relates to a kind of hydraulic auxiliary and its manufacturing methods, specifically, be related to a kind of accumulator diaphragm and its Manufacturing method.
Background technique
Accumulator uses diaphragm managing device, and accumulator is divided into two chamber of air-liquid by diaphragm.For the stabilization for guaranteeing air cavity pressure And sap cavity is not polluted by rubber, so using composite separator structure in design, the one side contacted with water is fluoroplastics, with The one side of gas contact is rubber.
Existing composite diaphragm be all made of bonding way molding, by sealing ring and half film of plastics it is bonding after again by sheet rubber It is bonded on half film of plastics one by one, will lead to the sheet rubber position Nian Jie with sheet rubber in this way and form the double-deck overlap joint, shadow The overturning performance and service life of product are rung, repeatedly product will crack in lap-joint after overturning, can only at most overturn 50 left sides It is right.
Summary of the invention
It is an object of the invention to improve the resistance to overturning of product fatigue and service life, prevent product after repeatedly overturning from taking Place's cracking is connect, therefore a kind of accumulator diaphragm and its manufacturing method are provided.
Basic conception of the invention is: the rubber of semi-cure state is prepared in the manufacture of accumulator diaphragm using first molding vulcanization Then fluoroplastics diaphragm and semi-cure diaphragm of rubber are bonded by diaphragm, finally carry out the manufacturing method of molding sulfidization molding, are eliminated Overlap joint between previous composite diaphragm rubber and rubber, membrane surface are smooth.
In order to complete above-mentioned purpose, specific technical solution of the invention is:
A kind of accumulator diaphragm is characterized in that including diaphragm of rubber and fluoroplastics diaphragm, the diaphragm of rubber Nian Jie with fluoroplastics diaphragm and be molded sulfidization molding, the diaphragm of rubber is to accommodate section and diaphragm of rubber body by sealing ring, diaphragm By the diaphragm of rubber for being molded the semi-cure state of sulfidization molding.
Further, the diaphragm of rubber with a thickness of 1.3mm.
Further, the fluoroplastics diaphragm with a thickness of 0.2mm.
Meanwhile the invention also provides a kind of manufacturing method of accumulator diaphragm, it is characterized in that, including following Step:
1) material needed for preparation prepares diaphragm of rubber；
2) diaphragm of rubber of semi-cure state is prepared in molding vulcanization；
3) bonding plane of fluoroplastics diaphragm and semi-cure diaphragm of rubber after activation applies one layer of rubber cement respectively, and by half sulphur Change diaphragm of rubber and fluoroplastics diaphragm bonding；
4) molding sulfidization molding is carried out；
Material prescription needed for diaphragm of rubber is by weight percentage in the step 1) are as follows: butyl rubber 50~60%, White carbon black 25~40%, zinc oxide 1~2%, stearic acid 0.5~1%, activator 0.5~1%, vulcanizing agent 5~11%；
In the step 2) when molding vulcanization, temperature is 160 ± 2 DEG C, time 25min, and pressure is 600~700KN；
The activation method of fluoroplastics diaphragm in the step 3) are as follows: it is molten that fluoroplastics diaphragm bonding plane is put into fluoroplastics processing It takes out, cleans up after parking 10min in liquid；
In the step 4) when molding vulcanization, temperature is 160 ± 2 DEG C, time 40min, and pressure is 5~10KN.
Further, diaphragm of rubber used in step 3) with a thickness of 1.3mm, fluoroplastics diaphragm with a thickness of 0.2mm。
Compared with the prior art, the advantages of the present invention are as follows:
1, the diaphragm of rubber of semi-cure state is prepared in present invention molding vulcanization, then by semi-cure diaphragm of rubber and fluoroplastics Diaphragm bonding, by after bonding fluoroplastics diaphragm and diaphragm of rubber be molded sulfidization molding, the overlap joint between no rubber, membrane surface It is bright and clean smooth, and resistance to overturning fatigue behaviour is good, can overturn 220,000 times, long service life, it is right particularly suitable for performance requirement height In leakproofness and the more demanding space station accumulator of resistance to overturning fatigability.
2, the diaphragm accumulator membrane portions prepared by the present invention butyl rubber low using air penetrability, good airproof performance are breathed freely Rate；Low parts of plastics uses the high fluoroplastics of corrosion resistance, and fluoroplastics face contact water source will not pollute water quality, and pure water exists At a temperature of 45 ° contact diaphragm fluoroplastics face still met after 8 days GB 19298-2014 " national food safety standard packaging drink Water " standard, especially it is used in the storage at water source in the accumulator of space station.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of accumulator diaphragm of the present invention；
Fig. 2 is the structural schematic diagram of diaphragm of rubber in Fig. 1；
Fig. 3 is the structural schematic diagram of fluoroplastics diaphragm in Fig. 1.
In figure: 1-diaphragm of rubber, 2-fluoroplastics diaphragms, 11-sealing rings, 12-diaphragms accommodate section, 13- diaphragm of rubber Body.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail:
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but It is not intended to limit the scope of the invention.
Referring to Fig. 1 to Fig. 3, a kind of accumulator diaphragm, including diaphragm of rubber 1 and fluoroplastics diaphragm 2, diaphragm of rubber 1 With a thickness of 1.3mm, fluoroplastics diaphragm 2 with a thickness of 0.2mm.Diaphragm of rubber 1 is Nian Jie with fluoroplastics diaphragm 2 and is molded and is sulfided into Type, the diaphragm of rubber 1 are to accommodate section 12 and diaphragm of rubber body 13 by sealing ring 11, diaphragm to pass through half sulphur of molding sulfidization molding The diaphragm of rubber of change state.
Meanwhile the present invention goes back him and proposes a kind of manufacturing method of accumulator diaphragm, comprising the following steps:
1) material needed for preparation prepares diaphragm of rubber 1；
2) diaphragm of rubber 1 of semi-cure state is prepared in molding vulcanization；
3) bonding plane of fluoroplastics diaphragm 2 and semi-cure diaphragm of rubber 1 after activation applies one layer of rubber cement respectively, and will be partly Vulcanized rubber diaphragm 2 and fluoroplastics diaphragm 1 are bonded；
4) molding sulfidization molding is carried out；
Material prescription needed for diaphragm of rubber 1 is by weight percentage in the step 1) are as follows: butyl rubber 60%, hard charcoal Black 25%, zinc oxide 1%, stearic acid 1%, activator 2%, vulcanizing agent 11%；
In the step 2) when molding vulcanization, temperature is 161 DEG C, time 25min, pressure 650KN；
The activation method of fluoroplastics diaphragm 2 in the step 3) are as follows: fluoroplastics diaphragm bonding plane is put into fluoroplastics processing It takes out, cleans up after parking 10min in solution；
In the step 4) when molding vulcanization, temperature is 161 DEG C, time 40min, pressure 5KN.
In the manufacturing method step 1) of above-mentioned accumulator diaphragm, the percentage by weight of material prescription needed for diaphragm of rubber 1 May be than meter: butyl rubber 50%, white carbon black 40%, zinc oxide 0.5%, stearic acid 0.5%, activator 1%, vulcanizing agent 8%.
It should be noted that has been described above is only a preferred embodiment of the present invention, for those of ordinary skill in the art For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention Protection scope.

Claims (5)

1. a kind of accumulator diaphragm, it is characterised in that: including diaphragm of rubber (1) and fluoroplastics diaphragm (2), the diaphragm of rubber (1) Nian Jie with fluoroplastics diaphragm (2) and be molded sulfidization molding, the diaphragm of rubber (1) is to accommodate section by sealing ring (11), diaphragm (12) and diaphragm of rubber body (13) passes through the diaphragm of rubber for being molded the semi-cure state of sulfidization molding.
2. accumulator diaphragm according to claim 1, it is characterised in that: the diaphragm of rubber (1) with a thickness of 1.3mm。
3. accumulator diaphragm according to claim 1 or 2, it is characterised in that: the fluoroplastics diaphragm (2) with a thickness of 0.2mm。
4. a kind of manufacturing method of accumulator diaphragm, which comprises the following steps:
1) material needed for preparation prepares diaphragm of rubber (1)；
2) diaphragm of rubber (1) of semi-cure state is prepared in molding vulcanization；
3) bonding plane of fluoroplastics diaphragm (2) and semi-cure diaphragm of rubber (1) after activation applies one layer of rubber cement respectively, and will be partly Vulcanized rubber diaphragm (1) and fluoroplastics diaphragm (2) bonding；
4) molding sulfidization molding is carried out；
Material prescription needed for diaphragm of rubber (1) is by weight percentage in the step 1) are as follows: and butyl rubber 50~60% is white Carbon black 25~40%, zinc oxide 1~2%, stearic acid 0.5~1%, activator 0.5~1%, vulcanizing agent 5~11%；
In the step 2) when molding vulcanization, temperature is 160 ± 2 DEG C, time 25min, and pressure is 600~700KN；
The activation method of fluoroplastics diaphragm (2) in the step 3) are as follows: fluoroplastics diaphragm (2) bonding plane is put into fluoroplastics processing It takes out, cleans up after parking 10min in solution；
In the step 4) when molding vulcanization, temperature is 160 ± 2 DEG C, time 40min, and pressure is 5~10KN.
5. the manufacturing method of accumulator diaphragm according to claim 4, it is characterised in that: rubber used in step 3) Glue diaphragm (1) with a thickness of 1.3mm, fluoroplastics diaphragm (2) with a thickness of 0.2mm.
CN201810935481.3A 2018-08-16 2018-08-16 Diaphragm for energy accumulator and manufacturing method thereof Active CN109367145B (en)

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CN109367145B CN109367145B (en) 2020-11-06

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409041A (en) * 1990-05-31 1995-04-25 Nok Corporation Laminated sheet
EP1058005A2 (en) * 1999-06-03 2000-12-06 Saint-Gobain Performance Plastics Corporation Fluoropolymer pump diaphragm with integral piston stud
WO2004007960A1 (en) * 2002-07-15 2004-01-22 Schuetze Thomas Multilayer membrane
CN206142037U (en) * 2016-09-28 2017-05-03 西安航天动力研究所 Resistant strong oxidizer's half membrane of fluorubber
CN108117845A (en) * 2017-12-13 2018-06-05 华东理工大学 A kind of adhesive bonding method of fluoroplastics and rubber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409041A (en) * 1990-05-31 1995-04-25 Nok Corporation Laminated sheet
EP1058005A2 (en) * 1999-06-03 2000-12-06 Saint-Gobain Performance Plastics Corporation Fluoropolymer pump diaphragm with integral piston stud
WO2004007960A1 (en) * 2002-07-15 2004-01-22 Schuetze Thomas Multilayer membrane
CN206142037U (en) * 2016-09-28 2017-05-03 西安航天动力研究所 Resistant strong oxidizer's half membrane of fluorubber
CN108117845A (en) * 2017-12-13 2018-06-05 华东理工大学 A kind of adhesive bonding method of fluoroplastics and rubber

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
薛晓军等: "橡塑复合半膜成型工艺", 《火箭推进》 *

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