CN108443499A - A kind of concrete piston seal and its manufacturing method - Google Patents
A kind of concrete piston seal and its manufacturing method Download PDFInfo
- Publication number
- CN108443499A CN108443499A CN201810349896.2A CN201810349896A CN108443499A CN 108443499 A CN108443499 A CN 108443499A CN 201810349896 A CN201810349896 A CN 201810349896A CN 108443499 A CN108443499 A CN 108443499A
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- Prior art keywords
- layer
- concrete piston
- folder
- rubber
- stratum reticulare
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- 239000004567 concrete Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 229920001971 elastomer Polymers 0.000 claims abstract description 46
- 239000004033 plastic Substances 0.000 claims abstract description 40
- 229920003023 plastic Polymers 0.000 claims abstract description 40
- 239000004744 fabric Substances 0.000 claims abstract description 30
- 239000000945 filler Substances 0.000 claims abstract description 27
- 239000011159 matrix material Substances 0.000 claims abstract description 26
- 238000003860 storage Methods 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims abstract description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 26
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 6
- 239000008397 galvanized steel Substances 0.000 claims description 6
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000004014 plasticizer Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- 238000010146 3D printing Methods 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000005987 sulfurization reaction Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000000084 colloidal system Substances 0.000 claims 1
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 10
- 238000004073 vulcanization Methods 0.000 description 5
- 239000011787 zinc oxide Substances 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011083 cement mortar Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- -1 further Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/12—Details
- F16J9/20—Rings with special cross-section; Oil-scraping rings
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/143—Sealing provided on the piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
Abstract
The rubber bodies top of the concrete piston seal of the present invention is equipped with concrete piston lip outstanding, is slope on the inside of the concrete piston lip, and slope lower part is connected with sunk structure, and the cross sectional shape of the joint of the slope and sunk structure is arc；The lower part of the rubber bodies is seal matrix, and the lateral surface of the outer lip is provided with oil storage tank with the transition portion of seal matrix, and the cross sectional shape of the oil storage tank is an inclined " V " shape；The bottom and side of the seal matrix are both provided with folder steel screen layer or folder plastics stratum reticulare；The outermost layer of the bottom of the seal matrix is provided with bottom layered cloth；The outermost layer of the lateral surface of the seal matrix and the lateral surface of lip is provided with peripheral canvas filler layer, and the lower end of the outer layer canvas filler layer wraps one end of bottom canvas filler layer.The concrete piston seal solves in the prior art the problems such as heat-resisting quantity is poor, wearability is poor, oil storage tank is easy to crack, yielding, service life is short.
Description
Technical field
The invention belongs to sealing device technical fields, and in particular to a kind of concrete piston seal and its manufacturing method.
Background technology
Currently, rubber concrete piston is the important component of architectural engineering and drilling machinery cement mortar delivery pump, in cement mortar
It is reciprocating in equal media, cement slurrypump is sent to eminence, distant place, while playing sealing function, prevents cement mortar from leaking out.Mesh
Preceding common assembly type mud piston mostly uses the manufacture of pure polyurethane material, though polyurethane products have fabulous elasticity and
Wearability, but since its high temperature resistance is poor, facile hydrolysis, friction coefficient are big, pump truck is caused to be caused in lasting long distance delivery
The tacky seal failure of piston softening, service life is short, seriously affects the working efficiency of equipment.Also part is manufactured using rubber,
But the reason of formula design and structure design, rubber concrete piston wearability is general, and heat resistance is also bad, and tear resistance is not as good as poly-
Urethane, service life is short, and long-term reciprocating motion can also exist to be deformed caused by stress relaxation, while big in reciprocating motion
The heat that amount generates can also influence the performance of piston due to that cannot be discharged in time, to seriously affect the working efficiency of equipment.
In the motion process of piston, the lip that sealing ring opens is pushed outwardly, the bevel edge on the inside of the lip of sealing ring
Can be with sunk structure by a separated force effect, and the section of general lip is designed as Y types or V-type is in the majority, lip
Joint inside mouthful is under long-term outside force effect, the case where cracking there are bevel edge and sunk structure joint；And
In order to solve the problems, such as that concrete piston seal is not wear-resisting, a kind of folder fabric rubber seal has now been developed, in certain range
The wearability of seal is improved, but presss from both sides particularity of the fabric rubber seal due to surface, in the process of reciprocating motion
In, the lip of sealing ring is easy to the oil film on sliding surface to scrape off, and not only lubricity is poor, but also may result in oil leak,
Therefore some concrete piston seals devise the oil storage tank of recess, and section is rectangular or arc, but can quilt in oil storage tank movement
Extruding fits together, and rectangular or arc junction can also have the risk of cracking, influence the service life of piston.For
This, is needed a kind of concrete piston sealing element that can be solved the above problems, the needs of actual conditions is met with this.
Invention content
To solve the above-mentioned problems, the invention discloses a kind of concrete piston seal and its manufacturing methods, existing to solve
Have in technology heat-resisting quantity is poor, wearability is poor, oil storage tank and bevel edge and sunk structure joint are easy to crack, it is yielding, use
The problems such as short life.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of concrete piston seal, including rubber bodies, peripheral canvas filler layer, bottom canvas filler layer, further include folder steel screen layer or
Plastics stratum reticulare is pressed from both sides, the top of the rubber bodies is equipped with concrete piston lip outstanding, is slope, slope on the inside of the concrete piston lip
Lower part is connected with sunk structure, and the cross sectional shape of the joint of the slope and sunk structure is arc；Under the rubber bodies
Portion is seal matrix, and the lateral surface of the outer lip is provided with oil storage tank, the oil storage tank with the transition portion of seal matrix
Cross sectional shape be an inclined " V " shape；The bottom and side of the seal matrix are both provided with folder steel screen layer or folder modeling
Expect stratum reticulare；The outermost layer of the bottom of the seal matrix is provided with bottom layered cloth；The lateral surface of the seal matrix and
The outermost layer of the lateral surface of lip is provided with peripheral canvas filler layer, and the lower end of the outer layer canvas filler layer wraps the one of bottom canvas filler layer
End.
Further, the folder steel screen layer is that nitrile rubber presss from both sides steel screen layer.
Further, the steel wire in the nitrile rubber folder steel screen layer is galvanized steel wire netting or copper plated steel silk screen, institute
Surfactant or coupling agent treatment are passed through in the surface for stating galvanized steel wire netting or copper plated steel silk screen.
Further, the folder plastics stratum reticulare is that nitrile rubber presss from both sides plastics stratum reticulare, and the nitrile rubber presss from both sides in plastics stratum reticulare
Plastic wire manufactured by 3D printing technique.
Further, the material of the plastic wire is ABS, PC, PP or PA one of which.
Further, the peripheral canvas filler layer and bottom canvas filler layer be fabric pressing after several layers of coating rubber and
At the rubber is nitrile rubber.
Further, the fabric is the plain wherein at least one of cotton fiber, nylon fiber, polyester fiber.
The preparation method of above-mentioned concrete piston seal, includes the following steps：
(1) layered cloth is preforming：Fabric is cut out, and is curled into required shape, respectively coats every layer of fabric
Rubber, for use；
(2) it presss from both sides steel screen layer or presss from both sides the preforming of plastics stratum reticulare：Using surfactant or coupling agent to steel wire or modeling
After material net is surface-treated, by steel screen layer or folder plastics stratum reticulare coating rubber, for use；
(3) rubber bodies is preforming：Raw rubber is molded by open mill；
(4) composite sulfuration is bonded：Multiple layered cloths, folder steel wire or folder plastics stratum reticulare, rubber bodies are put into vulcanizer
Mold in, vulcanized.
Further, the raw material for preparing of the rubber bodies is grouped as by the group of following parts by weight：NBR 80~100, reaction
Property anti-aging agent 2~3, carbon black 40~50, ZnO5~8, spherical Al2O35~10, plasticizer 2~5, sulphur 0.3~0.5, accelerating agent
DM 1~2.5, diphenylguanidine TDM 1~2, Vulcanization accelerator TMTD 0.5~1.
Further, the content of acrylonitrile accounts for the percentage of gross mass more than 40% in the NBR.
Compared with prior art, beneficial effects of the present invention are：
(1) concrete piston seal of the invention is all provided in the bottom at the matrix position of the lower seal body of rubber bodies and side
It is equipped with folder steel screen layer or folder plastics stratum reticulare, the outside at the matrix position that steel wire or plastic wire not only increase seal is strong
Degree so that seal matrix is unlikely to deform in use, and since steel wire or plastic wire are reticular structures, substantially
The weight of piston sealing body will not be increased.
(2) zinc oxide and spherical shape with compounding heat conduction function are added in the rubber bodies of concrete piston seal of the invention
Aluminium oxide, amount of heat that can be timely by the generations such as friction in reciprocating motion conducts, while the steel wire of outer layer
With preferable heat conductivility, collocation using greatly reduce due to heat conduction generate not in time it is unfavorable to piston performance
It influences.
(3) cross sectional shape of the oil storage tank of concrete piston seal of the invention is set as an inclined " V " shape, concrete piston lip
The cross sectional shape of the joint on slope and sunk structure on the inside of mouthful is set as arc, to reduce the motion process of piston
In, due to sealing ring lip be pushed outwardly be extruded with oil storage tank fit together caused by slope and sunk structure connect
The case where cracking and oil storage tank crack at conjunction, increases the service life of concrete piston sealing ring.
(4) outermost layer of the bottom of concrete piston seal of the invention is provided with bottom layered cloth, seal matrix it is outer
The outermost layer of the lateral surface of side and lip is provided with peripheral canvas filler layer, and the lower end of outer layer canvas filler layer wraps bottom canvas filler layer
One end improves the wearability of seal due to the higher intensity of layered cloth, increases the use of concrete piston sealing ring
Service life.
Description of the drawings
Fig. 1 is the schematic cross-section of the concrete piston sealing element of the present invention；
Fig. 2 is enlarged drawing at A；
Fig. 3 is enlarged drawing at B.
Reference sign：1 it is rubber bodies, 2 be peripheral canvas filler layer, 3 be bottom canvas filler layer, 4 is folder steel screen layer or folder
Plastics stratum reticulare, 5 be lip, 6 be slope, 7 be sunk structure, 8 be seal matrix, 9 be oil storage tank.
Specific implementation mode
The present invention is further illustrated with specific embodiment below in conjunction with attached drawing, but the present invention is not limited to these
Drawings and examples.
Embodiment 1
A kind of concrete piston seal, including rubber bodies 1, peripheral canvas filler layer 2, bottom canvas filler layer 3, further include folder steel screen layer
Or folder plastics stratum reticulare 4, the top of rubber bodies are equipped with concrete piston lip 5 outstanding, are slope 6 on the inside of concrete piston lip, under slope
Portion is connected with sunk structure 7, and the lower part of rubber bodies is seal matrix 8, the transition part of the lateral surface and seal matrix of outer lip
B is divided to be provided with oil storage tank 9；The bottom and side of seal matrix 8 are both provided with folder steel screen layer or folder plastics stratum reticulare 4, steel wire
Net or plastic wire not only increase the external intensity at the matrix position of seal so that seal matrix is not easy in use
Deformation, and since steel wire or plastic wire are reticular structures, the weight of piston sealing body will not be increased substantially；Seal base
The outermost layer of the bottom of body 8 is provided with bottom layered cloth 3；The outermost layer of the lateral surface of seal matrix 8 and the lateral surface of lip
It is provided with peripheral canvas filler layer 2, the lower end of outer layer canvas filler layer 2 wraps one end of bottom canvas filler layer 3, peripheral canvas filler layer and bottom folder
Layer of cloth is that the fabric after several layers of coating rubber presses, and rubber is nitrile rubber；Fabric is cotton fiber, nylon
The plain wherein at least one of fiber, polyester fiber.The number of plies of fabric is 5~8 layers in peripheral canvas filler layer；Bottom presss from both sides cloth
The number of plies of fabric is 3~5 layers in layer.Due to the higher intensity of layered cloth, the wearability of seal is improved, is increased
The service life of concrete piston sealing ring is added.
The manufacturing method of above-mentioned concrete piston seal, includes the following steps：
(1) layered cloth is preforming：Fabric is cut out, and is curled into required shape, respectively coats every layer of fabric
Rubber, for use；
(2) it presss from both sides steel screen layer or presss from both sides the preforming of plastics stratum reticulare：Using surfactant or coupling agent to steel wire or modeling
After material net is surface-treated, by steel screen layer or folder plastics stratum reticulare coating rubber, for use；
(3) rubber bodies is preforming：Raw rubber is molded by open mill；
(4) composite sulfuration is bonded：Multiple layered cloths, folder steel wire or folder plastics stratum reticulare, rubber bodies are put into vulcanizer
Mold in, vulcanized.
Embodiment 2
A kind of concrete piston seal, it is similar to Example 1, the difference is that folder steel screen layer, which is nitrile rubber, presss from both sides steel wire
Stratum reticulare, nitrile rubber press from both sides steel screen layer in steel wire be galvanized steel wire netting or copper plated steel silk screen, coating uniformly, strong adhesive force,
Corrosion resistance is lasting, toughness and excellent elasticity, in order to further increase the compatibility between steel wire and plastics, further,
Surfactant or coupling agent treatment are passed through into the surface of galvanized steel wire netting or copper plated steel silk screen；Folder plastics stratum reticulare is nitrile rubber
Press from both sides plastics stratum reticulare, the plastic wire in nitrile rubber folder plastics stratum reticulare is manufactured by 3D printing technique, the material of plastic wire be ABS,
PC, PP or PA one of which.The quantity pressed from both sides steel screen layer or press from both sides the steel wire or plastic wire in plastics stratum reticulare is at least two layers.
Embodiment 3
A kind of concrete piston seal, it is similar to Example 2, the difference is that slope 6 is with the joint A's of sunk structure 7
Cross sectional shape is arc；The cross sectional shape of oil storage tank is an inclined " V " shape；To reduce in the motion process due to piston
In, due to sealing ring lip be pushed outwardly be extruded with oil storage tank fit together caused by slope and sunk structure connect
The case where cracking and oil storage tank crack at conjunction, increases the service life of concrete piston sealing ring.
Embodiment 4
A kind of concrete piston seal, it is similar to Example 3, the difference is that rubber bodies prepare raw material by following weight
The group of part is grouped as：NBR 80, reactive anti-deteriorant 2, carbon black 40, ZnO 5, spherical Al2O35, plasticizer 2, sulphur 0.3 promotes
Agent DM 1, diphenylguanidine TDM 1, Vulcanization accelerator TMTD 0.5, the content of acrylonitrile accounts for the percentage of gross mass and is more than in wherein NBR
40%.
Raw rubber NBR selects the trade mark of high acrylonitrile content, and acrylonitrile content accounts for the percentage of gross mass 40% or more, resistance to
Oiliness is good；Anti-aging agent is the reactive anti-deteriorant that heat oxygen aging resistance is good, protection effect is lasting；Reinforcing agent good, heat for resilience
Small carbon black；Vulcanizing system is heat resistance and all more outstanding efficient vulcanization system of dynamic property.For reinforcement material
Heat-conducting effect is also added into zinc oxide and ball-aluminium oxide with synergistic effect in formula, and severe friction can be allowed to generate
Heat transmits rapidly, reduces the temperature of product itself, slows down the process of heat ageing, improves product service life.
Embodiment 5
A kind of concrete piston seal, it is similar to Example 3, the difference is that rubber bodies prepare raw material by following weight
The group of part is grouped as：NBR 90, reactive anti-deteriorant 3, carbon black 45, ZnO 6, spherical Al2O38, plasticizer 3, sulphur 0.4 promotes
Agent DM 2, diphenylguanidine TDM 2, Vulcanization accelerator TMTD 0.5, the content of acrylonitrile accounts for the percentage of gross mass and is more than in wherein NBR
40%.
Embodiment 6
A kind of concrete piston seal, it is similar to Example 3, the difference is that rubber bodies prepare raw material by following weight
The group of part is grouped as：NBR 100, reactive anti-deteriorant 3, carbon black 50, ZnO 8, spherical Al2O310, plasticizer 5, sulphur 0.5 promotees
Into agent DM 2.5, diphenylguanidine TDM 2, Vulcanization accelerator TMTD 1, in wherein NBR the content of acrylonitrile account for gross mass percentage it is big
In 40%.
The product that above-described embodiment is prepared carries out practical application, without mistake after the accumulative pumping 400h of use site
Slurry；It is observed after splitting out, product appearance is intact, and lip wears to be formed " crescent shape ", also enough interference volumes.After 500h,
Pump truck is without slurry is crossed, and for product without breakage, it is more than 50,000 sides to add up pump output.Far more than market mainstream producer genuine part 200h, 20,000
The working life of side.
The foregoing is merely the better embodiments of the present invention, and the invention is not limited in the above embodiments, are implementing
There may be the small structural modifications in part in the process, if the various changes or modifications of the present invention are not departed from the essence of the present invention
God and range, and belong within the scope of the claim and equivalent technologies of the present invention, then the present invention is also intended to comprising these changes
And modification.
Claims (10)
1. a kind of concrete piston seal, including rubber bodies, peripheral canvas filler layer, bottom canvas filler layer, which is characterized in that further include folder steel
The top of silk screen layer or folder plastics stratum reticulare, the rubber bodies is equipped with concrete piston lip outstanding, is on the inside of the concrete piston lip
Slope, slope lower part are connected with sunk structure, and the cross sectional shape of the joint of the slope and sunk structure is arc；The rubber
The lower part of colloid is seal matrix, and the lateral surface of the outer lip is provided with oil storage tank with the transition portion of seal matrix, institute
The cross sectional shape for stating oil storage tank is an inclined " V " shape；The bottom and side of the seal matrix are both provided with folder steel wire
Layer or folder plastics stratum reticulare；The outermost layer of the bottom of the seal matrix is provided with bottom layered cloth；The seal matrix
The outermost layer of the lateral surface of lateral surface and lip is provided with peripheral canvas filler layer, and the lower end of the outer layer canvas filler layer wraps bottom folder
One end of layer of cloth.
2. a kind of concrete piston seal according to claim 1, which is characterized in that the folder steel screen layer is nitrile rubber
Press from both sides steel screen layer.
3. a kind of concrete piston seal according to claim 2, which is characterized in that in the nitrile rubber folder steel screen layer
Steel wire be galvanized steel wire netting or copper plated steel silk screen, surface-active is passed through on the surface of the galvanized steel wire netting or copper plated steel silk screen
Agent or coupling agent treatment.
4. a kind of concrete piston seal according to claim 1, which is characterized in that the folder plastics stratum reticulare is nitrile rubber
Plastics stratum reticulare is pressed from both sides, the plastic wire in the nitrile rubber folder plastics stratum reticulare is manufactured by 3D printing technique.
5. a kind of concrete piston seal according to claim 4, which is characterized in that the material of the plastic wire be ABS,
PC, PP or PA one of which.
6. a kind of concrete piston seal according to claim 1, which is characterized in that the periphery canvas filler layer and bottom press from both sides cloth
Layer is that the fabric after several layers of coating rubber presses, and the rubber is nitrile rubber.
7. a kind of concrete piston seal according to claim 6, which is characterized in that the fabric is cotton fiber, Buddhist nun
The plain wherein at least one of imperial fiber, polyester fiber.
8. a kind of such as a kind of preparation method of concrete piston seal according to any one of claims 1 to 7, which is characterized in that
Include the following steps：
(1) layered cloth is preforming：Fabric is cut out, and is curled into required shape, respectively by every layer of fabric coating rubber,
For use；
(2) it presss from both sides steel screen layer or presss from both sides the preforming of plastics stratum reticulare：Using surfactant or coupling agent to steel wire or plastic wire
After being surface-treated, by steel screen layer or folder plastics stratum reticulare coating rubber, for use；
(3) rubber bodies is preforming：Raw rubber is molded by open mill；
(4) composite sulfuration is bonded：Multiple layered cloths, folder steel wire or folder plastics stratum reticulare, rubber bodies are put into the mould in vulcanizer
In tool, vulcanized.
9. a kind of concrete piston seal according to any one of claims 1 to 7, which is characterized in that the rubber bodies
Raw material is prepared to be grouped as by the group of following parts by weight：NBR 80~100, reactive anti-deteriorant 2~3, carbon black 40~50, ZnO 5
~8, spherical Al2O35~10, plasticizer 2~5, sulphur 0.3~0.5, altax 1~2.5, diphenylguanidine TDM 1~2, rush
Into agent TMTD 0.5~1.
10. a kind of concrete piston seal according to claim 9, which is characterized in that the content of acrylonitrile accounts in the NBR
The percentage of gross mass is more than 40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349896.2A CN108443499B (en) | 2018-04-18 | 2018-04-18 | Concrete piston sealing body and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349896.2A CN108443499B (en) | 2018-04-18 | 2018-04-18 | Concrete piston sealing body and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108443499A true CN108443499A (en) | 2018-08-24 |
| CN108443499B CN108443499B (en) | 2024-03-19 |
Family
ID=63200852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810349896.2A Active CN108443499B (en) | 2018-04-18 | 2018-04-18 | Concrete piston sealing body and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443499B (en) |
Citations (7)
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| CN104017259A (en) * | 2014-06-11 | 2014-09-03 | 青岛开世密封工业有限公司 | Cloth clamping concrete piston for high-pressure slurry pump and manufacturing method of piston |
| CN104032672A (en) * | 2014-06-17 | 2014-09-10 | 同济大学 | Lead core rubber support composited by high-strength steel fibers and fine steel wire meshes |
| CN104197002A (en) * | 2014-08-19 | 2014-12-10 | 青岛开世密封工业有限公司 | High-pressure concrete piston sealing piece |
| CN204163977U (en) * | 2014-09-17 | 2015-02-18 | 青岛开世密封工业有限公司 | A kind of full double team cloth concrete piston |
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2018
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| CN1355353A (en) * | 2001-12-24 | 2002-06-26 | 侯作启 | Rubber dam containing steel wire meshes and its making technology |
| CN101220190A (en) * | 2007-11-23 | 2008-07-16 | 广州机械科学研究院 | Fluororubber cloth clamp combination V seal ring and method for producing the same |
| CN102777376A (en) * | 2012-08-07 | 2012-11-14 | 江苏润洲塑胶有限公司 | Novel concrete pump piston sealing piece for concrete pump |
| CN104017259A (en) * | 2014-06-11 | 2014-09-03 | 青岛开世密封工业有限公司 | Cloth clamping concrete piston for high-pressure slurry pump and manufacturing method of piston |
| CN104032672A (en) * | 2014-06-17 | 2014-09-10 | 同济大学 | Lead core rubber support composited by high-strength steel fibers and fine steel wire meshes |
| CN104197002A (en) * | 2014-08-19 | 2014-12-10 | 青岛开世密封工业有限公司 | High-pressure concrete piston sealing piece |
| CN204163977U (en) * | 2014-09-17 | 2015-02-18 | 青岛开世密封工业有限公司 | A kind of full double team cloth concrete piston |
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| CN108443499B (en) | 2024-03-19 |
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