CN103759004A - Method for preventing leakage of non-metallic plane sealing gasket - Google Patents
Method for preventing leakage of non-metallic plane sealing gasket Download PDFInfo
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- CN103759004A CN103759004A CN201310750170.7A CN201310750170A CN103759004A CN 103759004 A CN103759004 A CN 103759004A CN 201310750170 A CN201310750170 A CN 201310750170A CN 103759004 A CN103759004 A CN 103759004A
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Abstract
The invention discloses a method for preventing leakage of a non-metallic plane sealing gasket. The method comprises the steps of step one, performing a surface pressure test on the gasket and analyzing a surface pressure effect; step two, modifying a gasket drawing according to the surface pressure analysis result of the gasket and additionally arranging a glue line in a position of a surface pressure difference of the gasket; step three, performing rial-production of the gasket according to the requirement of the modified gasket drawing and printing the glue line on a gasket sealing surface according to the requirement; step four, installing and testing a gasket sample after rial-production so as to check gasket sealing effect; and step five, improving the gasket, shaping and curing the drawing after testing the gasket is effective and turning to mass production. The method for preventing leakage of the non-metallic plane sealing gasket is simple and quick, and capable of analyzing the surface pressure effect through the gasket surface pressure test and printing the glue line in the position of the gasket surface pressure difference to avoid the problem of leakage caused due to the gasket surface pressure difference; and meanwhile, the assembly efficiency of an engine is improved.
Description
Technical field
The present invention relates to non metal plane sealing pad field, particularly a kind of method that prevents non metal plane sealing pad seepage.
Background technique
Owing to being subject to the restriction in engine structure, space, the screw span of some plane sealing structure is large, or part rigidity is poor, sealing load skewness, cause non metal plane sealing pad face pressure reduction, pad face pressure reduction refers to that sealing load that gasket seal produces under bolt tightening state and the distribution of pressure do not meet design requirement, face pressure reduction can cause gasket seal tight, there is leakage problems, the main pad gluing assembly method that adopts solves at present.
The method of pad gluing assembling refers to apply suitable diameter tree lace at part surface or one of them face of pad (or pad two sides), and gluing track is by technological requirement; During gluing, tree lace is wanted continuous uniform, does not allow to occur broken string phenomenon, and glue is anaerobic adhesive or organosilicon sealant; Tree lace size: anaerobic adhesive tree lace diameter 2mm-4mm, organosilicon sealant tree lace diameter 3mm-5mm; After gluing, organic silica gel is aimed at assembling in 10min, and pretension puts in place in 5min, is coated with after anaerobic adhesive Assembly of the parts, in 30min, tightens and puts in place; And after assembling, carry out surface treatment, the surplus glue of extruding by rag wiped clean.
The shortcoming of prior art: adopt pad gluing assembly method to solve while causing the problem of seepage because of pad face pressure reduction, but pad seepage more easily appears causing because pad gluing is bad in the bad control of uniformity of gluing position, Amount of spread and the gluing of pad.
The present invention is on the basis of existing technology, according to the face of pad, presses effect, to the position printing tree lace of pad face pressure reduction, has cancelled pad gluing assembly method, efficiently solves pad face pressure reduction and causes leakage problems, has improved engine assembly efficiency simultaneously.
Summary of the invention
The present invention is in order to overcome defect in above-mentioned prior art, a kind of simple and fast is provided, by pad face, press test to carry out analysis face and press effect, and the position printing tree lace to pad face pressure reduction, solve pad face pressure reduction and cause leakage problems, improved the method that prevents non metal plane sealing pad seepage of engine assembly efficiency simultaneously.
For achieving the above object, according to the invention provides a kind of method that prevents non metal plane sealing pad seepage, concrete steps comprise:
Step 1: pad is done to face and press test, and the face of analyzing is pressed effect; Face presses test detailed process to comprise:
The first, according to sealing load size, select pressure surface paper;
The second, according to the shape of sealing gasket and bolt hole, distribute, cutting face platen;
Three, face platen is placed on sealing gasket both sides, and face platen outside is padded and established transparent thin-membrane respectively again, and passes through two exemplar sealing surfaces from two side compressions;
Four, tighten exemplar Bolt Torque pressurize, then dismantle exemplar and take out face platen;
Five, the face platen of taking-up is encapsulated with sealing package;
Six, respectively two described platen scanning input computers.
Analysis face presses effect to refer to utilize pressure image analysis system identify the stressed size at each position and carry out stressed analysis of Uniformity;
Step 2: press analysis result to revise pad drawing according to pad face, set up tree lace in the position of pad face pressure reduction;
Step 3: by amended pad drawing trial-production pad, and at gasket seal face printing tree lace;
Step 4: to the pad exemplar of the manufacturing experimently checking of installing, to check pad sealing effect;
Step 5: after improvement pad empirical tests is effective, to drawing sizing and solidifying, and turn batch production.
In technique scheme, when analysis face is pressed effect in step 1, utilize FPD-8010E pressure image analysis system.
In technique scheme, step one side is pressed and in test, is tightened after exemplar Bolt Torque pressurize five minutes.
In technique scheme, face in step 2 presses analysis result to comprise four kinds: impression is clear, mark of break, all even pressure is inhomogeneous for pressure, and to mark of break, pressure is inhomogeneous or pressure is less than normal sealing strip location arrangements tree lace.
In technique scheme, tree lace width 2-3mm, tree lace thickness 0.7-0.8mm.
Compared with prior art, the present invention has following beneficial effect: this prevents the method simple and fast of non metal plane sealing pad seepage, by pad face, press test to carry out analysis face and press effect, and the position printing tree lace to pad face pressure reduction, solve pad face pressure reduction and cause leakage problems, improved engine assembly efficiency simultaneously.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method that prevents non metal plane sealing pad seepage of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of embodiment.It will be appreciated that, mentioned in following mode of execution of the present invention " on ", D score, " left side ", " right side ", " front " and " reverse side " be all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only used to be convenient to explanation, do not represent the restriction to the concrete technological scheme of the present invention.
The method simple and fast that prevents non metal plane sealing pad seepage of the present invention, by pad face, press test to carry out analysis face and press effect, and the position printing tree lace to pad face pressure reduction, solve pad face pressure reduction and cause leakage problems, improved engine assembly efficiency simultaneously.
Detailed description by way of example but unrestriced mode has illustrated the disclosure, should be understood that the realization that can be combined by independent realization or with other aspects in various aspect of the present disclosure below.This specification clearly enables those skilled in the art to manufacture and uses us to believe for new and non-obvious improvement, describe some embodiments, alternative, modification, alternative and system applies, comprised the current best mode that is considered to carry out the inventive principle of describing in this specification.When describing element or feature and/or embodiment, titled with " one " " one " " be somebody's turn to do " and " described ", be intended to expression and there are one or more in element or feature.Term " comprises " that " comprising " and " having " is intended to is comprising property, and also has extra element or feature beyond being illustrated in those specifically described elements or feature.
This prevent the method for non metal plane sealing pad seepage can improve non metal plane sealing pad face press effect, effectively solve gasket seal because face pressure reduction causes leakage problems, adopt pad printed tree lace to replace pad gluing assembling method to improve engine assembly efficiency.As shown in Figure 1, its concrete steps comprise:
Step 1: pad is done to face and press test, and the face of analyzing is pressed effect.
Face is pressed the detailed process of test: 1, according to sealing load size, select suitable pressure surface paper (in, bottom surface platen); 2,, according to the shape of sealing gasket and bolt hole, utilize the instruments such as scissors and drift to cut face platen; 3, clean: cleaning of tested sealing gasket and related components is clean; 4, face platen placement location: exemplar sealing surface---dedicated transparent film---face platen (light faces pad)---sealing gasket---another exemplar sealing surface of face platen (light faces pad)---the broad film of dedicated transparent---; 5,---face platen is taken out in pressurize 5 minutes---dismounting exemplar---to installing/dismounting exemplar: tighten exemplar Bolt Torque according to assembly technical requirement; 6, face platen is preserved: the face platen of taking-up is encapsulated with sealing package, and as early as possible by face platen scanning input computer, can not be placed on for a long time under high light, to guarantee data accuracy; 7, face platen scanning: respectively two face platens (scanning light face) are carried out to scanning input computer.
Then, utilize analysis software (FPD-8010E pressure image analysis system) to identify stressed size and the stressed analysis of Uniformity at each position, the different stressing conditions of different parts present different colors; When selecting pressure-sensitive reading point, fully understand the sealing principle of various pads, choose the Available Point on sealing strip.Sealing surface face presses Test Effect Analysis to comprise: 1. good: sealing strip is clear, continuous, pressure evenly, without local mark of break; 2. poor: sealing strip is unintelligible, discontinuous, pressure is inhomogeneous, local mark of break.
Step 2: press analysis result to revise pad drawing according to pad face, set up tree lace in the position of pad face pressure reduction.
Face presses analysis result to be divided into four kinds: impression is clear, mark of break, all even pressure is inhomogeneous for pressure, to mark of break, pressure is inhomogeneous or pressure the is less than normal sealing strip location arrangements tree lace (tree lace increasing on original pad drawing, arrange in other words tree lace), tree lace width 2-3mm, tree lace thickness 0.7-0.8mm.
Step 3: by amended pad drawing requirement trial-production pad, and on request at gasket seal face printing tree lace.
Step 4: to the pad exemplar of the manufacturing experimently checking of installing, to check pad sealing effect.
Step 5: after improvement pad empirical tests is effective, to drawing sizing and solidifying, and turn batch production.
To sum up, this prevents the method simple and fast of non metal plane sealing pad seepage, by pad face, presses test to carry out analysis face and presses effect, and the position printing tree lace to pad face pressure reduction, solve pad face pressure reduction and cause leakage problems, improved engine assembly efficiency simultaneously.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (5)
1. a method that prevents non metal plane sealing pad seepage, is characterized in that, concrete steps comprise:
Step 1: pad is done to face and press test, and the face of analyzing is pressed effect; Press test detailed process to comprise for described:
The first, according to sealing load size, select pressure surface paper;
The second, according to the shape of sealing gasket and bolt hole, distribute, cutting face platen;
Three, face platen is placed on sealing gasket both sides, and face platen outside is padded and established transparent thin-membrane respectively again, and passes through two exemplar sealing surfaces from two side compressions;
Four, tighten exemplar Bolt Torque pressurize, then dismantle exemplar and take out face platen;
Five, the face platen of taking-up is encapsulated with sealing package;
Six, respectively two described platen scanning input computers.
Described analysis face presses effect to refer to utilize pressure image analysis system identify the stressed size at each position and carry out stressed analysis of Uniformity;
Step 2: press analysis result to revise pad drawing according to pad face, set up tree lace in the position of pad face pressure reduction;
Step 3: by amended pad drawing trial-production pad, and at gasket seal face printing tree lace;
Step 4: to the pad exemplar of the manufacturing experimently checking of installing, to check pad sealing effect;
Step 5: after improvement pad empirical tests is effective, to drawing sizing and solidifying, and turn batch production.
2. the method that prevents non metal plane sealing pad seepage according to claim 1, is characterized in that: when analysis face is pressed effect in described step 1, utilize FPD-8010E pressure image analysis system.
3. the method that prevents non metal plane sealing pad seepage according to claim 1, is characterized in that: described step one side is pressed and in test, tightened after exemplar Bolt Torque pressurize five minutes.
4. according to the method that prevents non metal plane sealing pad seepage described in any one in claims 1 to 3, it is characterized in that: face in described step 2 presses analysis result to comprise four kinds: impression is clear, mark of break, all even pressure is inhomogeneous for pressure, and to mark of break, pressure is inhomogeneous or pressure is less than normal sealing strip location arrangements tree lace.
5. the method that prevents non metal plane sealing pad seepage according to claim 4, is characterized in that: described tree lace width 2-3mm, tree lace thickness 0.7-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750170.7A CN103759004B (en) | 2013-12-31 | 2013-12-31 | Prevent the method for non metal plane sealing pad seepage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310750170.7A CN103759004B (en) | 2013-12-31 | 2013-12-31 | Prevent the method for non metal plane sealing pad seepage |
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| CN103759004A true CN103759004A (en) | 2014-04-30 |
| CN103759004B CN103759004B (en) | 2016-02-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62298650A (en) * | 1986-06-17 | 1987-12-25 | Marusan Packing Seisakusho:Kk | Construction of cylinder-head gasket seat for internal combustion engine |
| CN201982645U (en) * | 2010-10-08 | 2011-09-21 | 南阳天一密封制品有限公司 | Screen printing sealing gasket |
| CN202300701U (en) * | 2011-09-30 | 2012-07-04 | 广西玉柴机器股份有限公司 | Sealing gasket |
| CN202547839U (en) * | 2012-03-30 | 2012-11-21 | 广西玉柴机器股份有限公司 | Pressure sensing test paper |
| CN103267121A (en) * | 2013-05-14 | 2013-08-28 | 宁波信幸隆密封制品有限公司 | Circumferential sealing gasket and production process thereof |
-
2013
- 2013-12-31 CN CN201310750170.7A patent/CN103759004B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62298650A (en) * | 1986-06-17 | 1987-12-25 | Marusan Packing Seisakusho:Kk | Construction of cylinder-head gasket seat for internal combustion engine |
| CN201982645U (en) * | 2010-10-08 | 2011-09-21 | 南阳天一密封制品有限公司 | Screen printing sealing gasket |
| CN202300701U (en) * | 2011-09-30 | 2012-07-04 | 广西玉柴机器股份有限公司 | Sealing gasket |
| CN202547839U (en) * | 2012-03-30 | 2012-11-21 | 广西玉柴机器股份有限公司 | Pressure sensing test paper |
| CN103267121A (en) * | 2013-05-14 | 2013-08-28 | 宁波信幸隆密封制品有限公司 | Circumferential sealing gasket and production process thereof |
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| CN103759004B (en) | 2016-02-24 |
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