CN106994758A - A kind of motor vehicle diesel pump vent gas treatment pumping diaphragm and its curing forming mold and manufacture method - Google Patents
A kind of motor vehicle diesel pump vent gas treatment pumping diaphragm and its curing forming mold and manufacture method Download PDFInfo
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- CN106994758A CN106994758A CN201710403479.7A CN201710403479A CN106994758A CN 106994758 A CN106994758 A CN 106994758A CN 201710403479 A CN201710403479 A CN 201710403479A CN 106994758 A CN106994758 A CN 106994758A
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/007—Tempering units for temperature control of moulds or cores, e.g. comprising heat exchangers, controlled valves, temperature-controlled circuits for fluids
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- 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
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- 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
- C08K3/02—Elements
- C08K3/04—Carbon
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- 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
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
- C08K5/18—Amines; Quaternary ammonium compounds with aromatically bound amino groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
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- 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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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Chemical & Material Sciences (AREA)
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- Oral & Maxillofacial Surgery (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
The invention discloses a kind of motor vehicle diesel pump vent gas treatment pumping diaphragm and its curing forming mold and manufacture method, belong to rubber and metal, nonmetallic processing technique field.The automobile engine tail gas of the present invention handles the processing mold of pumping diaphragm, including upper die and lower die, the lower surface of upper mould is provided with upper mould die cavity, the upper surface of lower mould is provided with lower mould die cavity, the downward vertical of lower mould die cavity is provided with neck, and upper mould die cavity is with forming rubber die cavity after lower mould die cavity matched moulds, in the inner surface of rubber die cavity, along the edge of reinforcing fibre, the O-shaped torn edges muscle of a circle is provided with.The present invention passes through the improvement to skeleton structure, reinforcing fibre structure, mould structure and mould pressing process, so that the rubber burr of product surface, it is easy to be torn, improve product quality and production efficiency, manufacturing cost is reduced, while the problem of reinforcing fibre is easily crumpled inside pumping diaphragm can effectively be solved.
Description
Technical field
The invention belongs to rubber and metal, nonmetallic processing technique field, more specifically to a kind of ethylene-propylene-diene monomer
Motor vehicle diesel pump vent gas treatment pumping diaphragm and its curing forming mold and manufacture method that glue is combined with metal and reinforcing fibre.
Background technology
As country is to the engine emission mandatory rules of law plus tight, the exhaust emissions level of diesel engine is proposed higher
It is required that, the diesel engine for automobile of market sale must follow upgrading at home.At present, China is in China to automobile-used
Engine implements the Abgasgesetz of the standard of state III, meanwhile, Beijing, Shanghai, Pearl River Delta area have been carried out the standard of state IV
Abgasgesetz, and state IV will be implemented in China.
For diesel engine for automobile, reaching the technology path of the emission level of state IV has two kinds, and one kind is using waste gas recycling
EGR+ tail gas particle catcher modes, another is at tail gas by the way of the Chemoselective reduction SCR to discharge
Reason.At present, international and domestic most of diesel engine for automobile enterprise meets the emission regulation demands of state IV using SCR technology path.
So-called Chemoselective reduction system SCR (Selective Catalytic Reduction) is one kind automobile-used
Aqueous urea solution is sprayed in diesel engine vent gas, and it is flashed to the nitrogen oxidation that ammonia is discharged with diesel engine in high-temperature tail gas
Under thing, the catalyst action in catalyst converter, occurs reduction reaction, so that nitrogen oxides value is greatly reduced, until meeting discharge
A kind of device of laws and regulations requirement.
SCR system is main by the silencer with catalyst converter, urea supply metering system, control system, non-heated urea tube
The compositions such as road, control sensor, wire harness and urea box.Wherein motor vehicle diesel pump vent gas treatment pumping diaphragm is used in control system
In, it is combined with metal and reinforcing fibre by ethylene propylene diene rubber and is made.The knot of the motor vehicle diesel pump vent gas treatment pumping diaphragm
Structure schematic diagram is as shown in figure 1, reinforcing fibre is 0.8mm, from metal bone from the coverage of pumping diaphragm bottom thinnest part in the pumping diaphragm
The coverage of frame bottom is 0.5mm, and due to the structural particularity of the pumping diaphragm, reinforcing fibre is easily crumpled in its manufacturing process,
Cause reinforcing fibre to be exposed to pumping diaphragm rubber surface or stick to skeleton bottom, so that cause the reduction of reinforcing fibre breaking strength,
It is easily damaged in use, and then cause to produce the Problem of Failure such as pumping diaphragm fracture.Therefore, how to prevent because reinforcing fibre is beaten
Wrinkle and cause the problem of it is exposed to pumping diaphragm surface, be a key technical problems anxious to be resolved in industrial production.
In addition, at present in industry, due to being limited by domestic production technology, above-mentioned rubber is combined with metal, reinforcing fibre
Pumping diaphragm production efficiency is low, percent defective is high, and tend not in production technology to meet automobile industry exhaust treatment system
Support the use requirement, therefore it is domestic also without enterprise can efficiently, inexpensive production rubber combined with metal, reinforcing fibre
Motor vehicle diesel pump vent gas treatment pumping diaphragm qualified products so that cause the pumping diaphragm processing link always dependent on import tie up
Hold, but external production efficiency is nor very high, needs further raising.
The content of the invention
1. the invention technical problem to be solved
When manufacturing motor vehicle diesel pump vent gas treatment pumping diaphragm using prior art it is an object of the invention to overcome, inside pumping diaphragm
Reinforcing fibre easily crumples to cause pumping diaphragm to be broken, and there is provided a kind of motor vehicle diesel for the relatively low deficiency of pumping diaphragm production efficiency
Pump vent gas treatment pumping diaphragm and its curing forming mold and manufacture method.Pumping diaphragm can effectively be solved using technical scheme
The problem of internal reinforcing fibre is easily crumpled and its production efficiency is relatively low.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the present invention is provided is：
First, a kind of motor vehicle diesel pump vent gas treatment pumping diaphragm of the present invention, wherein including pumping diaphragm body and reinforcing fibre, institute
The pumping diaphragm body stated is coated on the bottom and surface of metallic framework, and the pumping diaphragm body interior is provided with reinforcing fibre, fine by strengthening
Pumping diaphragm body is divided into two parts by dimension.
Further, described pumping diaphragm body by following component by weight：
Second, a kind of curing forming mold of motor vehicle diesel pump vent gas treatment pumping diaphragm of the present invention, including upper die and lower die,
The lower surface of upper mould is provided with upper mould die cavity, and the upper surface of lower mould is provided with lower mould die cavity, and the downward vertical of lower mould die cavity is provided with neck,
Upper mould die cavity is with forming rubber die cavity after lower mould die cavity matched moulds.
Further, the encapsulated part of the metallic framework of pumping diaphragm to be processed is positioned in lower mould die cavity, pumping diaphragm fixing bolt
Hang in neck, reinforcing fibre at the die parting line of upper die and lower die with flushing.
Further, in the inner surface of rubber die cavity, the O-shaped torn edges muscle of a circle is provided with the edge of reinforcing fibre.
Further, the horizontal width of the O-shaped torn edges muscle is 1~2mm, and height of projection is 1~2mm, and it is apart from rubber
0.1~0.2mm of edge of glue-type chamber.
Third, a kind of manufacture method of motor vehicle diesel pump vent gas treatment pumping diaphragm of the present invention, is the mould using the present invention
Manufactured, it is comprised the following steps that：
Step 1: the preparation of reinforcing fibre, metallic framework and pumping diaphragm body sizing material
Reinforcing fibre is cut according to the size of the curing forming mold, and pumping diaphragm is cut respectively using rubber preforming machine
Bottom body sizing material and pumping diaphragm surface body sizing material；
Step 2: reinforcing fibre, metallic framework and pumping diaphragm body sizing material are inserted
Described curing forming mold is assembled on vulcanizing press, then metallic framework is placed in lower mould die cavity,
And pumping diaphragm surface body sizing material is inserted into lower mould die cavity, then reinforcing fibre is tightened and is laid on pumping diaphragm surface body sizing material,
And the pumping diaphragm bottom body sizing material suitable with its appearance and size is further filled with reinforcing fibre, finally by upper mould and lower mould matched moulds；
Step 3: sulfidization molding
Start to press on sulfidization molding, vulcanizer driving lower mould after step 2, pumping diaphragm bottom body sizing material and pumping diaphragm
Surface body sizing material is flowed in die cavity full of rubber die cavity, and the curing temperature for controlling vulcanizer is 165~185 DEG C, during vulcanization
Between be 5~10 minutes, sulfide stress be 7~9MPa, vulcanization terminate after complete product processing, produce the present invention ethylene-propylene-diene monomer
The pumping diaphragm that glue is combined with metal, reinforcing fibre.
Further, the material of the metallic framework is 45# steel, and its surface is through phosphorating treatment, and pumping diaphragm fixing bolt
Following metal position is through blasting treatment, primary coat adhesive CH205, face coating adhesive 233X.
Further, described reinforcing fibre uses elastical cloth, and its mesh number is 10 mesh, and thickness is 0.3~0.4mm, should
The top and bottom of reinforcing fibre are surrounded by rubber, and it is cleaned through gasoline in advance.
3. beneficial effect
The technical scheme provided using the present invention, compared with prior art, with following remarkable result：
(1) a kind of curing forming mold of motor vehicle diesel pump vent gas treatment pumping diaphragm of the invention, including upper die and lower die, on
The lower surface of mould is provided with upper mould die cavity, and the upper surface of lower mould is provided with lower mould die cavity, at the die parting line of reinforcing fibre and upper die and lower die
Flush, when being processed using the mould of the present invention to pumping diaphragm, added by the pumping diaphragm body pair in upper mould die cavity and lower mould die cavity
Strong fiber is fixed, so as to effectively prevent that reinforcing fibre is crumpled in process, and then ensures that reinforcing fibre will not be naked
It is exposed to pumping diaphragm rubber surface or sticks to skeleton bottom, is conducive to extending its service life.
(2) hang down a kind of curing forming mold of motor vehicle diesel pump vent gas treatment pumping diaphragm of the invention, the lower section of lower mould die cavity
Neck is directly provided with, metallic framework is placed in lower mould die cavity, pumping diaphragm fixing bolt is vacantly hung in neck, so as to ensure mould
The interference fit of metallic framework and lower mould, makes both combine closely, prevents pumping diaphragm body sizing material to metallic framework after being pressed on tool
Not encapsulated face continues to flow, and pumping diaphragm body sizing material is completely restricted in defined region when flowing, so, obtained product surface
Without rubber burr, traditional skeleton surface trimming process step is eliminated, and then improves product quality and production efficiency, system is reduced
Cause this.
(3) curing forming mold of a kind of motor vehicle diesel pump vent gas treatment pumping diaphragm of the invention, in the interior table of rubber die cavity
Face, the O-shaped torn edges muscle of a circle is provided with the edge of reinforcing fibre, and optimizes design to the size of O-shaped torn edges muscle, so as to protect
Card tears O-shaped torn edges muscle with hand, it is easy to can just pare off the unnecessary overlap of pumping diaphragm during manual deburring, more traditional
Trimmed with scissors, the deburring mode is quick, convenient, substantially increases deburring efficiency, meanwhile, any damage is not resulted in product
Wound.
(4) manufacture method of a kind of motor vehicle diesel pump vent gas treatment pumping diaphragm of the invention, using the mould of the present invention to tail
Gas disposal pumping diaphragm is manufactured, and is first filled out in metallic framework bottom upper end and is put pumping diaphragm body sizing material, then, then reinforcing fibre is tightened
It is laid on pumping diaphragm body sizing material, finally, the pumping diaphragm body sizing material suitable with its appearance and size is further filled with reinforcing fibre, this
When, reinforcing fibre is tightly pushed down without crumpling by the pumping diaphragm body sizing material on upper strata, because upper strata and the lower floor of reinforcing fibre are distinguished
There is pumping diaphragm body sizing material to fix, without being exposed to pumping diaphragm rubber surface and sticking to skeleton bottom, so as to be effectively ensured
The performance of vent gas treatment pumping diaphragm, is conducive to extending its service life.
(5) a kind of manufacture method of motor vehicle diesel pump vent gas treatment pumping diaphragm of the invention, its reinforcing fibre uses elastical cloth,
And the thickness of reinforcing fibre is 0.3~0.4mm, the reinforcing fibre need not carry out any processing, pumping diaphragm bottom body and pump
The sizing material of film surface body, which is directed through reinforcing fibre, to be bonded together, simple to operate.
(6) manufacture method of a kind of motor vehicle diesel pump vent gas treatment pumping diaphragm of the invention, its pumping diaphragm body sizing material is using this
Specific component is constituted and its sulfuration process in invention, and combines the specific reinforcing fibre of the present invention, it is ensured that reinforcing fibre exists
Extension is consistent in sulfidation, can be prevented effectively from the reinforcing fibre in vulcanization and occur crumpling and problem on deformation, ensure simultaneously
The requirement that endurance bending is 150,000 times, and with superior resistance to oxidation, ozone-resistant and erosion-resistant ability.
Brief description of the drawings
Fig. 1 is the structural representation of the motor vehicle diesel pump vent gas treatment pumping diaphragm of the present invention；
Fig. 2 is a kind of profile of the curing forming mold of motor vehicle diesel pump vent gas treatment pumping diaphragm of the present invention；
Fig. 3 is the profile of upper mould in the present invention；
Fig. 4 is the profile of lower mould in the present invention；
Label declaration in schematic diagram：
1st, upper mould；101st, upper mould die cavity；2nd, lower mould；201st, lower mould die cavity；202nd, neck；3rd, reinforcing fibre；4th, metal bone
Frame；5th, O-shaped torn edges muscle；6th, rubber die cavity；7th, pumping diaphragm bottom body sizing material；8th, pumping diaphragm surface body sizing material.
Embodiment
As shown in figure 1, a kind of motor vehicle diesel pump vent gas treatment pumping diaphragm of the present invention, including pumping diaphragm body and reinforcing fibre 3,
Wherein pumping diaphragm body is coated on the bottom and surface of metallic framework 4, and the pumping diaphragm body interior is provided with reinforcing fibre 3, by strengthening
Pumping diaphragm body is divided into two parts by fiber 3, so as to increase the fatigue durability of pumping diaphragm, it is met pumping diaphragm endurance bending 150,000 times
Requirement.Described pumping diaphragm body by following component by weight：
The curing forming mold of the above-mentioned motor vehicle diesel pump vent gas treatment pumping diaphragm of the present invention, as shown in figs 2-4, including it is upper
Mould 1 and lower mould 2, the lower surface of upper mould 1 are provided with upper mould die cavity 101, and the upper surface of lower mould 2 is provided with lower mould die cavity 201, lower mould die cavity
201 downward vertical is provided with neck 202, and upper mould die cavity 101 is with forming rubber die cavity 6, pump to be processed after the lower matched moulds of mould die cavity 201
The metallic framework 4 of film treats that encapsulated part is positioned in lower mould die cavity 201, and pumping diaphragm fixing bolt is hung in neck 202, strengthens fine
Dimension 3 at upper mould 1, the die parting line of lower mould 2 with flushing.Through experimental analysis, it is that journey is pressed through on matched moulds by mould that reinforcing fibre 3, which is crumpled,
In, caused by the discontinuity that sizing material flows and produced in mold cavity, pumping diaphragm is processed using the mould of the present invention
When, reinforcing fibre 3 is fixed by the pumping diaphragm body in upper mould die cavity 101 and lower mould die cavity 201, so as to effectively anti-
Only reinforcing fibre 3 is crumpled in process, and then ensures that reinforcing fibre 3 will not be exposed to pumping diaphragm rubber surface or stick to skeleton
Bottom, is conducive to extending its service life.Simultaneously as the downward vertical of lower mould die cavity 201 is provided with neck 202, by metal bone
Frame 4 is placed in lower mould die cavity 201, and pumping diaphragm fixing bolt is vacantly hung in neck 202, so as to ensure metal after being pressed on mould
The interference fit of skeleton 4 and lower mould 2, makes both combine closely, prevent pumping diaphragm body sizing material to the not encapsulated face of metallic framework 4 after
Afterflow is moved, and pumping diaphragm body sizing material is completely restricted in defined region when flowing, so, and obtained product surface is without rubber hair
Side, eliminates traditional skeleton surface trimming process step, and then improves product quality and production efficiency, reduces manufacturing cost.
In the inner surface of rubber die cavity 6 in the present invention, the O-shaped torn edges muscle 5 of a circle, institute are provided with the edge of reinforcing fibre 3
State O-shaped torn edges muscle 5 horizontal width be 1~2mm, height of projection be 1~2mm, its apart from the edge 0.1 of rubber die cavity 6~
0.2mm, so as to ensure during manual deburring, O-shaped torn edges muscle is torn with hand, it is easy to can just be repaiied the unnecessary overlap of pumping diaphragm
Fall, more traditional to be trimmed with scissors, the deburring mode is quick, convenient, substantially increases deburring efficiency, meanwhile, will not to product
Cause any damage.
The manufacture method of the above-mentioned motor vehicle diesel pump vent gas treatment pumping diaphragm of the present invention, using the mould of the present invention to automobile bavin
Oil pump vent gas treatment pumping diaphragm is manufactured, and it is comprised the following steps that：
Step 1: the preparation of reinforcing fibre, metallic framework and pumping diaphragm body sizing material
Reinforcing fibre 3 is cut according to the size of the curing forming mold, and pump is cut respectively using rubber preforming machine
Film bottom body sizing material 7 and pumping diaphragm surface body sizing material 8；Above-mentioned reinforcing fibre 3 uses elastical cloth, and its mesh number is 10 mesh, thickness
For 0.3~0.4mm, the top and bottom of the reinforcing fibre 3 are surrounded by rubber, and it is cleaned through gasoline in advance, to remove surface and oil contaminant
And dust.The material of the metallic framework 4 is 45# steel, and its surface is through the metal portion below phosphorating treatment, and pumping diaphragm fixing bolt
Position, i.e., metallic framework treats encapsulated part through blasting treatment, and primary coat adhesive CH205, face coating adhesive 233X pass through adhesive
CH205 coating ensure that metallic framework has good corrosion resistance and environment resistant, and adhesive 233X coating can
Ensure that, with good environment resistant and high-temperature stability, bond can bear 149 DEG C of operating temperatures.
Step 2: reinforcing fibre, metallic framework and pumping diaphragm body sizing material are inserted
Described curing forming mold is assembled on vulcanizing press, metallic framework is then placed in lower mould die cavity 201
It is interior, and pumping diaphragm surface body sizing material 8 is inserted into lower mould die cavity 201, then reinforcing fibre 3 is tightened and is laid in pumping diaphragm surface body
On sizing material 8, and the pumping diaphragm bottom body sizing material 7 suitable with its appearance and size is further filled with reinforcing fibre 3, finally by upper mould 1
With the lower 2-in-1 mould of mould；
Step 3: sulfidization molding
Start to press on sulfidization molding, vulcanizer driving lower mould 2 after step 2, pumping diaphragm bottom body sizing material 7 and pump
Film surface body sizing material 8 is flowed in die cavity full of rubber die cavity 6, and the curing temperature for controlling vulcanizer is 165~185 DEG C, sulphur
The change time is 5~10 minutes, and sulfide stress is 7~9MPa, and vulcanization completes product processing, produces the ternary second of the present invention after terminating
The pumping diaphragm that third rubber is combined with metal, reinforcing fibre.The present invention is combined by the design and the optimization of sulfuration process to formula
The effect of reinforcing fibre, it is ensured that it is consistent that reinforcing fibre extends in sulfidation, can be prevented effectively from and strengthen in vulcanization
Fiber occurs crumpling and problem on deformation, while ensure that the requirement of endurance bending 150,000 times, and with superior resistance to oxidation, anti-
Ozone and erosion-resistant ability.
To further appreciate that present disclosure, in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
With reference to accompanying drawing, the motor vehicle diesel pump tail that a kind of ethylene propylene diene rubber of the present embodiment is combined with metal and reinforcing fibre
The curing forming mold of gas disposal pumping diaphragm, including upper mould 1 and lower mould 2, the lower surface of upper mould 1 are provided with upper mould die cavity 101, lower mould 2
Upper surface be provided with lower mould die cavity 201, the downward vertical of lower mould die cavity 201 is provided with neck 202, upper mould die cavity 101 and lower mould mould
Rubber die cavity 6 is formed after the matched moulds of chamber 201, in the inner surface of rubber die cavity 6, is provided with that a circle is O-shaped to be torn at the edge of reinforcing fibre 3
Side muscle 5, the horizontal width of the O-shaped torn edges muscle 5 is 1mm, and height of projection is 1mm, its edge 0.1mm apart from rubber die cavity 6.
The encapsulated part of metallic framework 4 of pumping diaphragm to be processed is positioned in lower mould die cavity 201, and pumping diaphragm fixing bolt is hung in neck 202,
Reinforcing fibre 3 at upper mould 1, the die parting line of lower mould 2 with flushing.
At the motor vehicle diesel pump tail gas combined using a kind of ethylene propylene diene rubber of the present embodiment with metal and reinforcing fibre
The manufacture method of pumping diaphragm is managed, its step is specific as follows：
Step 1: the preparation of reinforcing fibre, metallic framework and pumping diaphragm body sizing material
Cut according to the size of the curing forming mold of pumping diaphragm in reinforcing fibre 3, the present embodiment and be specially：Reinforcing fibre 3
Size and pumping diaphragm curing forming mold size according to 1：1 cuts, and the size of reinforcing fibre 3 is 100mm in the present embodiment
× 100mm, the mesh number of reinforcing fibre 3 is 10 mesh, and the thickness of reinforcing fibre 3 is 0.35mm, and its top and bottom is surrounded by rubber, and in advance
First cleaned through gasoline.The manufacturer of the terylene elastical cloth is Changzhou Tianyi Engineering Fiber Co., Ltd..The metallic framework 4
Material be 45# steel, its surface is through the metal position below phosphorating treatment, and pumping diaphragm fixing bolt through blasting treatment, primary coat glue
Stick CH205, face coating adhesive 233X.
Pump in pumping diaphragm bottom body sizing material 7 and pumping diaphragm surface body sizing material 8, the present embodiment is cut using rubber preforming machine
The semi-finished product sizing material of film bottom body sizing material 7 and pumping diaphragm surface body sizing material 8 use thickness for：3~5mm, weight be 1.5~
1.7 grams of square, the pumping diaphragm bottom body sizing material 7 and pumping diaphragm surface body sizing material 8 are made up of the component of following percentage by weight：
The component of the pumping diaphragm body sizing material of 1 embodiment of table 1
| Raw material title | Percentage composition % |
| EPDM rubber | 58 |
| High wear-resistant carbon black： | 20 |
| Semi-reinforcing hydrocarbon black： | 10 |
| Zinc oxide： | 6 |
| Stearic acid： | 0.6 |
| 4,4'- bis- (propyloxy phenyl base) diphenylamines： | 1.2 |
| 2- mercaptan ylmethylbenzimidazole zinc salts： | 0.6 |
| α, α the tert-butyl peroxy diisopropyl benzene of '-two： | 2.1 |
| Triallyl isocyanurate： | 1.5 |
In above table, EPDM rubber is the 580HT ethylene propylene diene rubbers of Shi Pai chemical companies of U.S. production；It is high resistance to
Mill carbon black is the N330 high wear-resistant carbon blacks of Cabot Co., Ltd's production；Semi-reinforcing hydrocarbon black is the production of Suzhou Bao Hua carbon blacks Co., Ltd
N774 semi-reinforcing hydrocarbon blacks；Zinc oxide is the indirect process zinc oxide of Zhenjiang plain boiled water Chemical Co., Ltd. production；Stearic acid is Ma Laixi
The production of sub- south grease company；α, α the tert-butyl peroxy diisopropyl benzene of '-two are Holland
The α, the tert-butyl peroxy diisopropyl benzenes of α '-two 14-40B of Akzonodeltolymerchemicals productions；(the phenyl of 4,4' bis-
Isopropyl) diphenylamines be Jiangsu Huada Chemical Group Co., Ltd. production anti-old 445；2- mercaptan ylmethylbenzimidazole zinc salts
It is the age resistor ZMMBI of Jinan Rui Bo Chemical Co., Ltd.s；Triallyl isocyanurate is that Suzhou subfamily chemical reagent is limited
The accelerator TAC of company's production.In above table, EPDM rubber is the 580HT ternarys of Shi Pai chemical companies of U.S. production
EP rubbers；High wear-resistant carbon black is the N330 high wear-resistant carbon blacks of Cabot Co., Ltd's production；Semi-reinforcing hydrocarbon black is the precious magnificent carbon black in Suzhou
The N774 semi-reinforcing hydrocarbon blacks of Co., Ltd's production；Zinc oxide is the indirect process zinc oxide of Zhenjiang plain boiled water Chemical Co., Ltd. production；
Stearic acid is Malaysian southern grease company production；α, α the tert-butyl peroxy diisopropyl benzene of '-two are Holland
The α, the tert-butyl peroxy diisopropyl benzenes of α '-two 14-40B of Akzonodeltolymerchemicals productions；(the phenyl of 4,4' bis-
Isopropyl) diphenylamines be Jiangsu Huada Chemical Group Co., Ltd. production anti-old 445；2- mercaptan ylmethylbenzimidazole zinc salts
It is the age resistor ZMMBI of Jinan Rui Bo Chemical Co., Ltd.s；Triallyl isocyanurate is that Suzhou subfamily chemical reagent is limited
The accelerator TAC of company's production.
The present embodiment passes through the design and the optimization of sulfuration process to formula so that material has higher intensity, has
Superior resistance to oxidation, ozone-resistant and erosion-resistant ability, so as to ensure that the requirement of endurance bending 150,000 times.
Step 2: reinforcing fibre, metallic framework and pumping diaphragm body sizing material are inserted
The curing forming mold of pumping diaphragm in step one is assembled on vulcanizing press, and metallic framework 4 is first inserted down
In mould die cavity 201, pumping diaphragm surface body sizing material 8 is further filled with, then, then reinforcing fibre 3 is tightened is laid in pumping diaphragm surface body
On sizing material 8, finally, the pumping diaphragm bottom body sizing material 7 suitable with its appearance and size is further filled with reinforcing fibre 3, now, strengthened
Fiber 3 is tightly pushed down without crumpling by the pumping diaphragm bottom body sizing material 7 on upper strata, because upper strata and the lower floor of reinforcing fibre 3 are distinguished
There is pumping diaphragm body sizing material to fix, without being exposed to pumping diaphragm rubber surface and sticking to skeleton bottom, this point is even more important, most
Upper mould is engaged with lower mould again afterwards.
Step 3: sulfidization molding
Start sulfidization molding after preparing through step 2, pressed on the lower mould 2 of vulcanizer driving, the upper strata of reinforcing fibre 3 and lower floor
Pumping diaphragm body sizing material uniformly flows in die cavity and full of rubber die cavity 6, the curing temperature control of vulcanizer is 175 DEG C, sulphur
Change time control is 6 minutes, and sulfide stress is controlled as 8MPa, and completion product processing after vulcanization terminates produces rubber and metal, added
The pumping diaphragm (as shown in Figure 1) that strong fiber is combined, the pumping diaphragm external diameter that rubber made from the present embodiment is combined with metal, reinforcing fibre is
30mm, reinforcing fibre 3 is that 0.8mm, the coverage from metallic framework bottom are from the coverage of pumping diaphragm bottom thinnest part
0.5mm.The demand for the pumping diaphragm that the present embodiment can be combined according to rubber with metal, reinforcing fibre, is vulcanized to open more than one piece mould
Processing, so as to greatly improve the production efficiency of product.
Embodiment 2
A kind of curing forming mold of motor vehicle diesel pump vent gas treatment pumping diaphragm of the present embodiment, the basic be the same as Example of its structure
1, its difference is：The horizontal width of O-shaped torn edges muscle 5 is 2mm, and height of projection is 2mm, and it is apart from the edge of rubber die cavity 6
0.2mm。
Motor vehicle diesel pump vent gas treatment pumping diaphragm is manufactured using the curing forming mold of the present embodiment, its step is substantially with implementation
Example 1, difference is：The thickness of reinforcing fibre 3 is 0.3mm in step one；Pumping diaphragm bottom body sizing material 7 and pumping diaphragm surface sheet
The material embryo of body sizing material 8 by following component by weight：
The component of pumping diaphragm body sizing material used in the embodiment 2 of table 2
The curing temperature control of vulcanizer is 180 DEG C in step 3, and cure time control is 8 minutes, sulfide stress control
For 9MPa, vulcanization completes product processing, produces the pumping diaphragm that rubber is combined with metal, reinforcing fibre, wherein reinforcing fibre 3 after terminating
Coverage from pumping diaphragm bottom thinnest part is that 1.2mm, the coverage from metallic framework bottom are 0.8mm.
Embodiment 3
The motor vehicle diesel pump vent gas treatment pump that a kind of ethylene propylene diene rubber of the present embodiment is combined with metal and reinforcing fibre
The curing forming mold of film, its structure be the same as Example 1.The manufacture method of the motor vehicle diesel pump vent gas treatment pumping diaphragm of the present embodiment,
Pumping diaphragm is manufactured using the curing forming mold of the present embodiment, the basic be the same as Example 1 of its step, difference is essentially consisted in：Step
The thickness of reinforcing fibre 3 is 0.4mm in rapid one；The material embryo of pumping diaphragm bottom body sizing material 7 and pumping diaphragm surface body sizing material 8 is by as follows
The component composition of mass percent：
The component of pumping diaphragm body sizing material used in the embodiment 3 of table 3
| Raw material title | Percentage composition % |
| EPDM rubber | 60 |
| High wear-resistant carbon black： | 20 |
| Semi-reinforcing hydrocarbon black： | 9 |
| Zinc oxide： | 4 |
| Stearic acid： | 1.2 |
| 4,4'- bis- (propyloxy phenyl base) diphenylamines： | 1.0 |
| 2- mercaptan ylmethylbenzimidazole zinc salts： | 0.8 |
| α, α the tert-butyl peroxy diisopropyl benzene of '-two： | 2.3 |
| Triallyl isocyanurate： | 1.7 |
The curing temperature control of vulcanizer is 170 DEG C in step 3, and cure time control is 9 minutes, sulfide stress control
For 9MPa, vulcanization completes product processing, produces the pumping diaphragm that rubber is combined with metal, reinforcing fibre, wherein reinforcing fibre 3 after terminating
Coverage from pumping diaphragm bottom thinnest part is that 1.5mm, the coverage from metallic framework bottom are 1mm.
Embodiment 4
The motor vehicle diesel pump vent gas treatment pump that a kind of ethylene propylene diene rubber of the present embodiment is combined with metal and reinforcing fibre
The curing forming mold of film, its structure be the same as Example 1.Motor vehicle diesel pump tail gas is manufactured using the curing forming mold of the present embodiment
Pumping diaphragm is handled, the basic be the same as Example 1 of its step, its difference is essentially consisted in：Pumping diaphragm body sizing material used is by as follows in the present embodiment
The component composition of mass percent：
The component of pumping diaphragm body sizing material used in the embodiment 4 of table 4
| Raw material title | Percentage composition % |
| EPDM rubber | 60 |
| High wear-resistant carbon black： | 15 |
| Semi-reinforcing hydrocarbon black： | 10 |
| Zinc oxide： | 6 |
| Stearic acid： | 1.5 |
| 4,4'- bis- (propyloxy phenyl base) diphenylamines： | 2 |
| 2- mercaptan ylmethylbenzimidazole zinc salts： | 1 |
| α, α the tert-butyl peroxy diisopropyl benzene of '-two： | 2.5 |
| Triallyl isocyanurate： | 2 |
The curing temperature control of vulcanizer is 165 DEG C in step 3, and cure time control is 5 minutes, sulfide stress control
For 7MPa, vulcanization completes product processing, produces the pumping diaphragm that rubber is combined with metal, reinforcing fibre after terminating.
Embodiment 5
The motor vehicle diesel pump vent gas treatment pump that a kind of ethylene propylene diene rubber of the present embodiment is combined with metal and reinforcing fibre
The curing forming mold of film, its structure be the same as Example 1.Motor vehicle diesel pump tail gas is manufactured using the curing forming mold of the present embodiment
Pumping diaphragm is handled, the basic be the same as Example 1 of its step, its difference is essentially consisted in：Pumping diaphragm body sizing material used is by as follows in the present embodiment
The component composition of mass percent：
The component of pumping diaphragm body sizing material used in the embodiment 5 of table 5
The curing temperature control of vulcanizer is 185 DEG C in step 3, and cure time control is 10 minutes, sulfide stress control
For 8MPa, vulcanization completes product processing, produces the pumping diaphragm that rubber is combined with metal, reinforcing fibre after terminating.
Embodiment 6
The motor vehicle diesel pump vent gas treatment pump that a kind of ethylene propylene diene rubber of the present embodiment is combined with metal and reinforcing fibre
The curing forming mold of film, its structure be the same as Example 1.Motor vehicle diesel pump tail gas is manufactured using the curing forming mold of the present embodiment
Pumping diaphragm is handled, the basic be the same as Example 1 of its step, its difference is essentially consisted in：Pumping diaphragm body sizing material used is by as follows in the present embodiment
The component composition of mass percent：
The component of pumping diaphragm body sizing material used in the embodiment 6 of table 6
| Raw material title | Percentage composition % |
| EPDM rubber | 60 |
| High wear-resistant carbon black： | 20 |
| Semi-reinforcing hydrocarbon black： | 5 |
| Zinc oxide： | 6 |
| Stearic acid： | 1.5 |
| 4,4'- bis- (propyloxy phenyl base) diphenylamines： | 2 |
| 2- mercaptan ylmethylbenzimidazole zinc salts： | 1 |
| α, α the tert-butyl peroxy diisopropyl benzene of '-two： | 2.5 |
| Triallyl isocyanurate： | 2 |
Schematical above that the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, are designed and the technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (9)
1. a kind of motor vehicle diesel pump vent gas treatment pumping diaphragm, it is characterised in that：Including pumping diaphragm body and reinforcing fibre (3), wherein institute
The pumping diaphragm body stated is coated on the bottom and surface of metallic framework (4), and the pumping diaphragm body interior is provided with reinforcing fibre (3), passes through
Pumping diaphragm body is divided into two parts by reinforcing fibre (3).
2. a kind of motor vehicle diesel pump vent gas treatment pumping diaphragm according to claim 1, it is characterised in that：Described pumping diaphragm body
By following component by weight：
3. a kind of curing forming mold of motor vehicle diesel pump vent gas treatment pumping diaphragm as claimed in claim 1 or 2, its feature exists
In：Including upper mould (1) and lower mould (2), the lower surface of upper mould (1) is provided with upper mould die cavity (101), and the upper surface of lower mould (2) is provided with
Lower mould die cavity (201), the downward vertical of lower mould die cavity (201) is provided with neck (202), upper mould die cavity (101) and lower mould die cavity
(201) rubber die cavity (6) is formed after matched moulds.
4. a kind of curing forming mold of motor vehicle diesel pump vent gas treatment pumping diaphragm according to claim 3, it is characterised in that：
Metallic framework (4) encapsulated part of pumping diaphragm to be processed is positioned in lower mould die cavity (201), and pumping diaphragm fixing bolt hangs on neck
(202) in, reinforcing fibre (3) at upper mould (1), the die parting line of lower mould (2) with flushing.
5. a kind of curing forming mold of motor vehicle diesel pump vent gas treatment pumping diaphragm according to claim 3 or 4, its feature exists
In：Inner surface in rubber die cavity (6), the O-shaped torn edges muscle (5) of a circle is provided with the edge of reinforcing fibre (3).
6. a kind of curing forming mold of motor vehicle diesel pump vent gas treatment pumping diaphragm according to claim 5, it is characterised in that：
The horizontal width of the O-shaped torn edges muscle (5) is 1~2mm, and height of projection is 1~2mm, its edge apart from rubber die cavity (6)
0.1~0.2mm.
7. a kind of manufacture method of motor vehicle diesel pump vent gas treatment pumping diaphragm, it is characterised in that：Using any one of claim 3-6
Described mould is manufactured, and it is comprised the following steps that：
Step 1: the preparation of reinforcing fibre, metallic framework and pumping diaphragm body sizing material
Reinforcing fibre (3) is cut according to the size of the curing forming mold, and pumping diaphragm is cut respectively using rubber preforming machine
Bottom body sizing material (7) and pumping diaphragm surface body sizing material (8)；
Step 2: reinforcing fibre, metallic framework and pumping diaphragm body sizing material are inserted
Described curing forming mold is assembled on vulcanizing press, then metallic framework is placed in lower mould die cavity (201),
And pumping diaphragm surface body sizing material (8) is inserted into lower mould die cavity (201), then reinforcing fibre (3) is tightened and is laid in pumping diaphragm surface
On body sizing material (8), and the pumping diaphragm bottom body sizing material (7) suitable with its appearance and size is further filled with reinforcing fibre (3), most
Afterwards by upper mould (1) and lower mould (2) matched moulds；
Step 3: sulfidization molding
Start to press on sulfidization molding, vulcanizer driving lower mould (2) after step 2, pumping diaphragm bottom body sizing material (7) and pump
Film surface body sizing material (8) is flowed in die cavity full of rubber die cavity (6), and the curing temperature for controlling vulcanizer is 165~185
DEG C, cure time is 5~10 minutes, and sulfide stress is 7~9MPa, and vulcanization completes product processing, produces the present invention's after terminating
The pumping diaphragm that ethylene propylene diene rubber is combined with metal, reinforcing fibre.
8. a kind of manufacture method of motor vehicle diesel pump vent gas treatment pumping diaphragm according to claim 7, it is characterised in that：It is described
The material of metallic framework (4) is 45# steel, and its surface is through the metal position below phosphorating treatment, and pumping diaphragm fixing bolt through sandblasting
Processing, primary coat adhesive CH205, face coating adhesive 233X.
9. a kind of manufacture method of motor vehicle diesel pump vent gas treatment pumping diaphragm according to claim 7 or 8, it is characterised in that：
Described reinforcing fibre (3) uses elastical cloth, and its mesh number is 10 mesh, and thickness is above and below 0.3~0.4mm, the reinforcing fibre (3)
Face is surrounded by rubber, and it is cleaned through gasoline in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403479.7A CN106994758B (en) | 2017-06-01 | 2017-06-01 | Automobile diesel pump tail gas treatment pump film, vulcanization molding die and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710403479.7A CN106994758B (en) | 2017-06-01 | 2017-06-01 | Automobile diesel pump tail gas treatment pump film, vulcanization molding die and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN106994758A true CN106994758A (en) | 2017-08-01 |
| CN106994758B CN106994758B (en) | 2023-05-16 |
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| CN201710403479.7A Active CN106994758B (en) | 2017-06-01 | 2017-06-01 | Automobile diesel pump tail gas treatment pump film, vulcanization molding die and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087227A (en) * | 2017-12-25 | 2018-05-29 | 无锡市创恒机械有限公司 | Metering pump pumping diaphragm |
| CN111673971A (en) * | 2020-06-12 | 2020-09-18 | 贵州航天精工制造有限公司 | Soft oil tank bag opening forming process and structure |
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| KR19990032040A (en) * | 1997-10-16 | 1999-05-06 | 김재기 | Manufacturing method of industrial diaphragm |
| CN103770439A (en) * | 2013-12-27 | 2014-05-07 | 南京金三力橡塑有限公司 | Production method of ultrathin fluorinated silicone rubber cloth-sandwiched membrane |
| CN105524360A (en) * | 2016-01-29 | 2016-04-27 | 宁国市加能密封件有限公司 | Rubber diaphragm of electronic vacuum pump and preparation method of rubber diaphragm |
| CN106224213A (en) * | 2016-09-30 | 2016-12-14 | 罗凯缤 | A kind of exhaust gas from diesel vehicle post processing SCR system adds blue pump diaphragm sheet and seals structure |
| CN206780766U (en) * | 2017-06-01 | 2017-12-22 | 南京金三力高分子科技有限公司 | A kind of motor vehicle diesel pump vent gas treatment pumping diaphragm and its curing forming mold |
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2017
- 2017-06-01 CN CN201710403479.7A patent/CN106994758B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990032040A (en) * | 1997-10-16 | 1999-05-06 | 김재기 | Manufacturing method of industrial diaphragm |
| CN103770439A (en) * | 2013-12-27 | 2014-05-07 | 南京金三力橡塑有限公司 | Production method of ultrathin fluorinated silicone rubber cloth-sandwiched membrane |
| CN105524360A (en) * | 2016-01-29 | 2016-04-27 | 宁国市加能密封件有限公司 | Rubber diaphragm of electronic vacuum pump and preparation method of rubber diaphragm |
| CN106224213A (en) * | 2016-09-30 | 2016-12-14 | 罗凯缤 | A kind of exhaust gas from diesel vehicle post processing SCR system adds blue pump diaphragm sheet and seals structure |
| CN206780766U (en) * | 2017-06-01 | 2017-12-22 | 南京金三力高分子科技有限公司 | A kind of motor vehicle diesel pump vent gas treatment pumping diaphragm and its curing forming mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087227A (en) * | 2017-12-25 | 2018-05-29 | 无锡市创恒机械有限公司 | Metering pump pumping diaphragm |
| CN111673971A (en) * | 2020-06-12 | 2020-09-18 | 贵州航天精工制造有限公司 | Soft oil tank bag opening forming process and structure |
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|---|---|
| CN106994758B (en) | 2023-05-16 |
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