CN107588035A - A kind of chemical industry mechanical seal for pump - Google Patents
A kind of chemical industry mechanical seal for pump Download PDFInfo
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- CN107588035A CN107588035A CN201710798268.8A CN201710798268A CN107588035A CN 107588035 A CN107588035 A CN 107588035A CN 201710798268 A CN201710798268 A CN 201710798268A CN 107588035 A CN107588035 A CN 107588035A
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- mechanical seal
- chemical industry
- pump
- industry mechanical
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of chemical industry mechanical seal for pump, including soft material and hard material, the soft material includes carbon graphite, polytetrafluoroethylene (PTFE), copper alloy and nylon-type plastics, and the hard material includes hard alloy, engineering ceramics and foam metal, and the weight content of its each component is：Carbon graphite 18 ~ 22%, polytetrafluoroethylene (PTFE) 10 ~ 12%, copper alloy 1 ~ 2%, nylon-type plastics 20 ~ 30%, hard alloy 2 ~ 4%, engineering ceramics 0.5 ~ 2%, foam metal 20 ~ 25%.Comprise the following steps：The pre-treatment of material, the filling of material, the bonding of material, hot pressing furnace interior pressurization, cooling and standings, mechanical seal：Mechanical seal includes 1）Erection stage and 2）Examination phase.The chemical industry mechanical seal for pump sealing pair is corrosion-resistant, high temperature resistant, and hardness is big, good sealing effect.
Description
Technical field
The invention belongs to technical field of mechanical, and in particular to a kind of chemical industry mechanical seal for pump.
Background technology
Mechanical seal (mechanical seal) refers to by least one pair of perpendicular to the end face of rotation axis in Fluid pressure
With compensation mechanism elastic force（Or magnetic force）In the presence of and the cooperation of auxiliary seal under keep be bonded and formed with respect to slip
The device for preventing fluid from leaking.Elastic force load maintainer and auxiliary seal be metallicity line pipe mechanical seal we be referred to as metal wave
The line seal of tube.In light seal, also make auxiliary seal using rubber bellows, rubber bellows elastic force is limited, typically
Need to be aided with spring to meet to load elastic force." mechanical seal " is generally referred to as " machine envelope " by people.But mechanical seal is close
Envelope effect often depends on sealing pair, often pays attention to sealing in existing machinery sealing, does not focus on the use of material but, make
Mechanical seal in the case that sealing is just deteriorated in use for some time, therefore we need a new chemical pump to use
Mechanical seal solves the above problems, and meets the needs of people.
The content of the invention
It is an object of the invention to provide a kind of chemical industry mechanical seal for pump, is asked with solve to propose in above-mentioned background technology
Topic.
To achieve the above object, the present invention provides following technical scheme：A kind of chemical industry mechanical seal for pump, its feature exist
In：Including soft material and hard material, the soft material includes carbon graphite, polytetrafluoroethylene (PTFE), copper alloy and nylon-type modeling
Material, the hard material include hard alloy, engineering ceramics and foam metal, and the weight content of its each component is：Carbon graphite 18 ~
22%th, polytetrafluoroethylene (PTFE) 10 ~ 12%, copper alloy 1 ~ 2%, nylon-type plastics 20 ~ 30%, hard alloy 2 ~ 4%, engineering ceramics
0.5 ~ 2%, foam metal 20 ~ 25%.
Preferably, a kind of chemical industry mechanical seal for pump production technology, comprises the following steps：
A, the pre-treatment of material：The hard material and soft material of selection are selected and polished；
B, the filling of material：The material for shape of claying into power is filled into graphite jig according to different ratios；
C, the bonding of material：Binding agent is injected into graphite jig；
D, pressurizeed in hot pressing furnace：High temperature high pressure process, temperature 2000-2100 are carried out to the graphite jig after above-mentioned packing material
DEG C, high pressure 80-100Mpa；
E, cooling and standings：Graphite jig is dismantled, cooling treatment, whenabouts 4h are carried out to the sealing strip of shaping；
F, mechanical seal：The step of carrying out encapsulation process to chemical industry pump housing is as follows：
1）Erection stage：End cover is enclosed on chemical industry pump housing by helical element, and observes and can be axially moved
2）Examination phase：Chemical pump end cap is checked with clearance gauge and seals the gap of resonator end surface, and its error is not more than 0.04mm.
Preferably, what the polishing in the step A utilized is Ultramicro-powder lapping device.
Preferably, the step C binding agents are high polymer cemented dose of liquid.
Preferably, need to carry out skiving to sealing strip in the step E.
Preferably, installed in the step F in installation process using lubricant and spring.
The technique effect and advantage of the present invention：The chemical industry mechanical seal for pump takes filling and the bonding of mixing material, makes
Obtain sealing strip has very strong corrosion resistance and heat-resisting quantity, and intensity is big, not cracky.
Embodiment
It is clearly and completely described below in conjunction with the technical scheme in the embodiment of the present invention, it is clear that described reality
It is only part of the embodiment of the present invention to apply example, rather than whole embodiments.It is general based on the embodiment in the present invention, this area
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made, belong to what the present invention protected
Scope.
Embodiment 1
A kind of chemical industry mechanical seal for pump, it is characterised in that：Including soft material and hard material, the soft material includes carbon
Graphite, polytetrafluoroethylene (PTFE), copper alloy and nylon-type plastics, the hard material include hard alloy, engineering ceramics and foam gold
Category, the weight content of its each component are：Carbon graphite 18%, polytetrafluoroethylene (PTFE) 10%, copper alloy 1%, nylon-type plastics 20%,
Hard alloy 2%, engineering ceramics 0.5%, foam metal 20%.
A kind of above-mentioned chemical industry mechanical seal for pump production technology, wherein, comprise the following steps：
A, the pre-treatment of material：The hard material and soft material of selection are selected and polished；
B, the filling of material：The material for shape of claying into power is filled into graphite jig according to different ratios；
C, the bonding of material：Binding agent is injected into graphite jig；
D, pressurizeed in hot pressing furnace：High temperature high pressure process, temperature 2000-2100 are carried out to the graphite jig after above-mentioned packing material
DEG C, high pressure 80-100Mpa；
E, cooling and standings：Graphite jig is dismantled, cooling treatment, whenabouts 4h are carried out to the sealing strip of shaping；
F, mechanical seal：The step of carrying out encapsulation process to chemical industry pump housing is as follows：
1）Erection stage：End cover is enclosed on chemical industry pump housing by helical element, and observes and can be axially moved.
2）Examination phase：Chemical pump end cap is checked with clearance gauge and seals the gap of resonator end surface, and its error is not more than 0.04mm.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, what the polishing in the step A utilized is Ultramicro-powder grinding dress
Put.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, the step C binding agents are high polymer cemented dose of liquid.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, need to carry out skiving to sealing strip in the step E.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, entered in the step F in installation process using lubricant and spring
Row installation.
Embodiment 2
A kind of chemical industry mechanical seal for pump, it is characterised in that：Including soft material and hard material, the soft material includes carbon
Graphite, polytetrafluoroethylene (PTFE), copper alloy and nylon-type plastics, the hard material include hard alloy, engineering ceramics and foam gold
Category, the weight content of its each component are：Carbon graphite 20%, polytetrafluoroethylene (PTFE) 11%, copper alloy 1.5%, nylon-type plastics
25%th, hard alloy 3%, engineering ceramics 1.5%, foam metal 23%.
A kind of above-mentioned chemical industry mechanical seal for pump production technology, wherein, comprise the following steps：
A, the pre-treatment of material：The hard material and soft material of selection are selected and polished；
B, the filling of material：The material for shape of claying into power is filled into graphite jig according to different ratios；
C, the bonding of material：Binding agent is injected into graphite jig；
D, pressurizeed in hot pressing furnace：High temperature high pressure process, temperature 2000-2100 are carried out to the graphite jig after above-mentioned packing material
DEG C, high pressure 80-100Mpa；
E, cooling and standings：Graphite jig is dismantled, cooling treatment, whenabouts 4h are carried out to the sealing strip of shaping；
F, mechanical seal：The step of carrying out encapsulation process to chemical industry pump housing is as follows：
1）Erection stage：End cover is enclosed on chemical industry pump housing by helical element, and observes and can be axially moved.
2）Examination phase：Chemical pump end cap is checked with clearance gauge and seals the gap of resonator end surface, and its error is not more than 0.04mm.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, what the polishing in the step A utilized is Ultramicro-powder grinding dress
Put.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, the step C binding agents are high polymer cemented dose of liquid.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, need to carry out skiving to sealing strip in the step E.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, entered in the step F in installation process using lubricant and spring
Row installation.
Embodiment 3
A kind of chemical industry mechanical seal for pump, it is characterised in that：Including soft material and hard material, the soft material includes carbon
Graphite, polytetrafluoroethylene (PTFE), copper alloy and nylon-type plastics, the hard material include hard alloy, engineering ceramics and foam gold
Category, the weight content of its each component are：Carbon graphite 22%, polytetrafluoroethylene (PTFE) 12%, copper alloy 2%, nylon-type plastics 30%,
Hard alloy 4%, engineering ceramics 2%, foam metal 25%.
A kind of above-mentioned chemical industry mechanical seal for pump production technology, wherein, comprise the following steps：
A, the pre-treatment of material：The hard material and soft material of selection are selected and polished；
B, the filling of material：The material for shape of claying into power is filled into graphite jig according to different ratios；
C, the bonding of material：Binding agent is injected into graphite jig；
D, pressurizeed in hot pressing furnace：High temperature high pressure process, temperature 2000-2100 are carried out to the graphite jig after above-mentioned packing material
DEG C, high pressure 80-100Mpa；
E, cooling and standings：Graphite jig is dismantled, cooling treatment, whenabouts 4h are carried out to the sealing strip of shaping；
F, mechanical seal：The step of carrying out encapsulation process to chemical industry pump housing is as follows：
1）Erection stage：End cover is enclosed on chemical industry pump housing by helical element, and observes and can be axially moved.
2）Examination phase：Chemical pump end cap is checked with clearance gauge and seals the gap of resonator end surface, and its error is not more than 0.04mm.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, what the polishing in the step A utilized is Ultramicro-powder grinding dress
Put.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, the step C binding agents are high polymer cemented dose of liquid.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, need to carry out skiving to sealing strip in the step E.
A kind of above-mentioned chemical industry mechanical seal for pump, wherein, entered in the step F in installation process using lubricant and spring
Row installation.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (6)
- A kind of 1. chemical industry mechanical seal for pump, it is characterised in that：Including soft material and hard material, the soft material includes Carbon graphite, polytetrafluoroethylene (PTFE), copper alloy and nylon-type plastics, the hard material include hard alloy, engineering ceramics and foam Metal, the weight content of its each component are：Carbon graphite 18 ~ 22%, polytetrafluoroethylene (PTFE) 10 ~ 12%, copper alloy 1 ~ 2%, nylon-type Plastics 20 ~ 30%, hard alloy 2 ~ 4%, engineering ceramics 0.5 ~ 2%, foam metal 20 ~ 25%.
- A kind of 2. chemical industry mechanical seal for pump production technology according to claim 1, it is characterised in that：Including following step Suddenly：A, the pre-treatment of material：The hard material and soft material of selection are selected and polished；B, the filling of material：The material for shape of claying into power is filled into graphite jig according to different ratios；C, the bonding of material：Binding agent is injected into graphite jig；D, pressurizeed in hot pressing furnace：High temperature high pressure process, temperature 2000-2100 are carried out to the graphite jig after above-mentioned packing material DEG C, high pressure 80-100Mpa；E, cooling and standings：Graphite jig is dismantled, cooling treatment, whenabouts 4h are carried out to the sealing strip of shaping；F, mechanical seal：The step of carrying out encapsulation process to chemical industry pump housing is as follows：Erection stage：End cover is enclosed on chemical industry pump housing by helical element, and observes and can be axially movedExamination phase：Chemical pump end cap is checked with clearance gauge and seals the gap of resonator end surface, and its error is not more than 0.04mm.
- A kind of 3. chemical industry mechanical seal for pump according to claim 1, it is characterised in that：Polishing profit in the step A It is Ultramicro-powder lapping device.
- A kind of 4. chemical industry mechanical seal for pump according to claim 1, it is characterised in that：The step C binding agents are liquid High polymers binding agent.
- A kind of 5. chemical industry mechanical seal for pump according to claim 1, it is characterised in that：Needed in the step E to close Strip of paper used for sealing carries out skiving.
- A kind of 6. chemical industry mechanical seal for pump according to claim 1, it is characterised in that：Installation process in the step F It is middle to be installed using lubricant and spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798268.8A CN107588035A (en) | 2017-09-07 | 2017-09-07 | A kind of chemical industry mechanical seal for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798268.8A CN107588035A (en) | 2017-09-07 | 2017-09-07 | A kind of chemical industry mechanical seal for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107588035A true CN107588035A (en) | 2018-01-16 |
Family
ID=61050896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710798268.8A Pending CN107588035A (en) | 2017-09-07 | 2017-09-07 | A kind of chemical industry mechanical seal for pump |
Country Status (1)
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076468A (en) * | 1992-03-14 | 1993-09-22 | 隋作训 | Graphite-metal base composite sealing material and manufacture craft |
| CN1166581A (en) * | 1996-05-29 | 1997-12-03 | 及同寅 | Mechanical sealing part for devitrified glass and its production method |
| CN2724820Y (en) * | 2004-08-09 | 2005-09-14 | 叶少华 | Internal assembling type mechanical seal device for caldron |
| CN102022544A (en) * | 2011-01-06 | 2011-04-20 | 武汉理工大学 | Mechanical seal friction pair material and preparation method thereof |
-
2017
- 2017-09-07 CN CN201710798268.8A patent/CN107588035A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076468A (en) * | 1992-03-14 | 1993-09-22 | 隋作训 | Graphite-metal base composite sealing material and manufacture craft |
| CN1166581A (en) * | 1996-05-29 | 1997-12-03 | 及同寅 | Mechanical sealing part for devitrified glass and its production method |
| CN2724820Y (en) * | 2004-08-09 | 2005-09-14 | 叶少华 | Internal assembling type mechanical seal device for caldron |
| CN102022544A (en) * | 2011-01-06 | 2011-04-20 | 武汉理工大学 | Mechanical seal friction pair material and preparation method thereof |
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Application publication date: 20180116 |