CN107983603A - Engine cylinder body micropore sealing technology - Google Patents
Engine cylinder body micropore sealing technology Download PDFInfo
- Publication number
- CN107983603A CN107983603A CN201810088278.7A CN201810088278A CN107983603A CN 107983603 A CN107983603 A CN 107983603A CN 201810088278 A CN201810088278 A CN 201810088278A CN 107983603 A CN107983603 A CN 107983603A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- engine cylinder
- main oil
- sealing technology
- oil gallery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
Abstract
The invention discloses a kind of engine cylinder body micropore sealing technology, the technique includes：Foreign matter and burr are removed, is then purged with high pressure air rifle, cleans, is dry；Then main oil gallery micropore area, 0.05 0.1mm of smearing thickness are smeared with fluid sealant；Gases at high pressure inflation and pressurize are carried out again.Above-mentioned steps can be repeated several times, to be finally reached sealing detection standard.By the way that in cylinder body main oil gallery application micropore sealing technology, by the trial operation of 6 months, oil duct did not occur Seepage again, achieves good technique effect；Meanwhile using the mending-leakage technique of this case, having easy to operate, cost is low, and the distinguishing features such as speed is fast, have extremely strong application value.
Description
Technical field
The invention belongs to engine spare and accessory parts to produce and process technical field, more particularly to a kind of engine cylinder body micropore sealing
Technique.
Background technology
It is product leak test to have a procedure in engine cylinder body processing, and main purpose is to detect whether product leaks.
It is first noted that leaking and not leaking a simply opposite concept, do not leak theoretically, ought simply let out
When the value of leakage is no more than allowed band, we are taken as what is do not leaked, qualified in other words.So-called leakage is exactly content
Exterior either other materials are gone to by a limited space inside is entered by outside.Content can be gas, liquid
Body or solid.The confined space can make various explanations, if the oil duct sealed on engine cylinder body is exactly a confined space.
The production technology of Diesel Engine Cylinder Block Castings, determines that casting certainly exists many micropores.Micropore does not interfere with structure
Intensity, it is the natural result of the two kinds of physical phenomenons occurred when molten metal cures, i.e. the melting contraction of crystal and gas is inhaled
Receive.This micropore naked eyes are difficult to observe by, but are under pressure at work or the infiltration of lubricating oil, can gradually make these microfacies mutual
Connection, and with progressively widened trend, eventually result in leakage, the quality and performance of engine can be seriously affected.
Engine cylinder body to having produced leakage, past method are typically soldering or scrap.It is micro- for cast-internal
Hole, welding be difficult to handle, and welding can only generally block micropore surface, can only respite, can't fundamentally solve to ooze
Leakage problem.
The content of the invention
It is an object of the invention to：For technical problem existing for above-mentioned existing mending-leakage operation, there is provided a kind of engine
Cylinder body micropore sealing technology, simplified operation, smoothly solves engine cylinder body main oil gallery leakage problems caused by micropore, tool
There is cost low, the advantages that speed is fast, and effect is good.
The technical scheme is that it is achieved in that：A kind of engine cylinder body micropore sealing technology, the technique include with
Lower step：
S1：With deburring tool brush cylinder body main oil gallery back and forth, to remove foreign matter and burr, then purged with high pressure air rifle, with
Further remove iron filings；
S2：Main oil gallery micropore area inner wall, smearing thickness 0.05-0.1mm are smeared with fluid sealant；
S3：Cylinder body main oil gallery one end is closed, simultaneously pressurize 5-10 minutes are inflated from other end access gases at high pressure；
S4：Reach the defined dwell time, inflation is completed in pressure release；
S5：Pressure testing is carried out to engine cylinder body main oil gallery with pressure testing equipment, whether reaches the airtight of requirement after inspection processing
Property；If still there is leakage, S2-S4 is repeated until pressure testing is qualified.
Engine cylinder body micropore sealing technology of the present invention, the pressure leak process in S4 is progressively to complete stage by stage, i.e.,
For pressure release progressively and the alternate process of pressurize, from highest pressure recovery to exterior atmospheric pressure.
Engine cylinder body micropore sealing technology of the present invention, after the completion of S1 steps, it is also necessary to carried out to main oil gallery
Cleaning, and it is dry.
Engine cylinder body micropore sealing technology of the present invention, the drying steps using outside toast by the way of into
OK, vacuumize process, duration 5-6 minute are carried out to main oil gallery while outside is toasted.
Engine cylinder body micropore sealing technology of the present invention, the highest dwell pressure value are 0.8-1.5MP.
Engine cylinder body micropore sealing technology of the present invention, the preparation process of the fluid sealant are：
A, 120-140 mass parts polyurethane modified epoxy resin is added in the first reaction kettle and is heated to 60 DEG C -65 DEG C, then
The hydroquinone of 0.2-0.45 mass parts is added, treats that it is completely dissolved mixing；
B, the methacrylic acid of 55-68 mass parts is added while in the second reaction kettle and is heated to 32-40 DEG C, adds 1-4
Initiator, 1.5-3.5 mass parts accelerating agent, the 0.8-1.8 mass parts kickers of mass parts, and it is sufficiently stirred mixing；
When C, keeping temperature 1.5-2 small first reaction kettle and the second reaction kettle, material in two reaction kettles is then mixed in one
Rise, and full and uniform stirring 15-20 minutes, it is cooled to room temperature, with spare.
Engine cylinder body micropore sealing technology of the present invention, it is necessary to which fluid sealant is added before fluid sealant is smeared every time
Heat arrives 40-45 DEG C, and is applied to cylinder body main oil gallery inner wall in time.
The beneficial effects of the present invention are：By in cylinder body main oil gallery application micropore sealing technology, by the test run of 6 months
OK, Seepage again does not occur for oil duct, achieves good technique effect；Meanwhile using the mending-leakage technique of this case, have
Easy to operate, cost is low, and the distinguishing features such as speed is fast, have extremely strong application value.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, following embodiments, to the technology of the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Engine cylinder body micropore sealing technology, the technique comprise the following steps：
Pre-treatment step：With deburring tool brush cylinder body main oil gallery back and forth, to remove foreign matter and burr, high pressure air rifle is then used
Purging, further to remove iron blood and floating ash；After deburring, foreign matter and floating ash, it is also necessary to further main oil gallery is used
Water rinses, and so that the dust in gap, particularly micropore is concealed in depth cleaning, avoids influencing follow-up mending-leakage effect；Rinse
After be dried again, specific drying mode, can use high pressure air pressure gun（Thunderous thatch wind turbine）Purged, or using use
The form of baking, is preferably combined using two kinds of forms and carried out, to obtain more preferable drying effect.
Mending-leakage step：Main oil gallery micropore area, smearing thickness 0.05-0.1mm are smeared with fluid sealant；It can be applied using spread pen
Smear, smearing can greatly save sealing material.Smearing thickness 0.05-0.1mm, it is already possible to reach good sealing effect, have
Beneficial to the effect of follow-up stamping procedure.
Punch steps：Cylinder body main oil gallery one end is closed, simultaneously pressurize 5-10 is inflated from other end access gases at high pressure
Minute；The dwell pressure value is 0.8-1.5MP.Gases at high pressure punching press, can be by existing for the fluid sealant above smeared press-in
In micropore, the pressure value of pressurize can reach preferable effect in 0.8-1.5MP, can be according to the tight of engine cylinder volume defect
Weight degree is selected.
Blowdown step：After the defined dwell time is reached, you can carry out pressure release and complete inflation.Pressure leak process is progressively to divide
Stage completes, the alternate process of pressure release and pressurize as progressively, from highest pressure recovery to exterior atmospheric pressure.Institute
It is that the undulating value of pressure is too big in order to avoid moment completes pressure release in a manner of using progressively pressure release, can be to completing to fill out in micropore
The fluid sealant filled produces impact, influences its firmness be combineding with each other.
Pressure testing step：After the completion of pressure release, pressure testing can be carried out to engine cylinder body main oil gallery, is after inspection processing
The no air-tightness for reaching requirement；If still there is leakage, mending-leakage, punching press and blowdown step are repeated, untill qualified.
The drying steps can also use exterior baking to carry out vacuumize process, duration 5- to main oil gallery at the same time
6 minutes.The purpose vacuumized is the exclusion that remaining moisture in gap, particularly micropore is carried out to emphasis.
The preparation process of the fluid sealant is：
A, 120-140 mass parts polyurethane modified epoxy resin is added in the first reaction kettle and is heated to 60 DEG C -65 DEG C, then
The hydroquinone of 0.2-0.45 mass parts is added, treats that it is completely dissolved mixing；
B, the methacrylic acid of 55-68 mass parts is added while in the second reaction kettle and is heated to 32-40 DEG C, adds 1-4
Initiator, 1.5-3.5 mass parts accelerating agent, the 0.8-1.8 mass parts kickers of mass parts, and it is sufficiently stirred mixing；
When C, keeping temperature 1.5-2 small first reaction kettle and the second reaction kettle, material in two reaction kettles is then mixed in one
Rise, and full and uniform stirring 15-20 minutes, it is cooled to room temperature, with spare.
, it is necessary to which fluid sealant is heated to 40-45 DEG C before fluid sealant is smeared every time, and it is applied in time in cylinder body main oil gallery
Wall.Smeared again after heating, can cause fluid sealant that there is more particularly suitable viscosity, under pressurised conditions can more quickly into
Enter in micropore, achieve the purpose that fast blockage.
Methacrylic acid is modified by using polyurethane modified epoxy resin, has obtained modified metering system
Acid, then recycles modified methacrylic acid to be synthesized into fluid sealant, significantly improves toughness and resistance to low temperature, at the same time also
Have very notable compared with high impact strength, sealing effect.Finished product fluid sealant after the heating, can increase the penetrant action to micropore,
And it is flexible good after curing, be conducive to work steady in a long-term under the conditions of engine cylinder body shakes, in the evil of various hot and cold alternations
Bad operating mode, it may have preferably seal stability.
Encapsulating method provided by the present invention can be applied not only to the micropore sealing of engine cylinder body main oil gallery, it is also possible to
In the other positions of engine, and other micropore sealings with similar structures casting, there is relatively broad popularization and application valency
Value.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of engine cylinder body micropore sealing technology, it is characterised in that the technique comprises the following steps：
S1：With deburring tool brush cylinder body main oil gallery back and forth, to remove foreign matter and burr, then purged with high pressure air rifle, with
Further remove iron filings；
S2：Main oil gallery micropore area inner wall, smearing thickness 0.05-0.1mm are smeared with fluid sealant；
S3：Cylinder body main oil gallery one end is closed, simultaneously pressurize 5-10 minutes are inflated from other end access gases at high pressure；
S4：Reach the defined dwell time, inflation is completed in pressure release；
S5：Pressure testing is carried out to engine cylinder body main oil gallery with pressure testing equipment, whether reaches the airtight of requirement after inspection processing
Property；If still there is leakage, S2-S4 is repeated until pressure testing is qualified.
2. engine cylinder body micropore sealing technology according to claim 1, it is characterised in that：Pressure leak process in S4 be by
Step is completed stage by stage, the alternate process of pressure release and pressurize as progressively, from highest pressure recovery to exterior atmospheric pressure.
3. engine cylinder body micropore sealing technology according to claim 1, it is characterised in that：After the completion of S1 steps, also
Need to clean main oil gallery, and it is dry.
4. engine cylinder body micropore sealing technology according to claim 3, it is characterised in that：The drying steps are using outer
The mode of portion's baking carries out, and vacuumize process, duration 5-6 minute are carried out to main oil gallery while outside is toasted.
5. engine cylinder body micropore sealing technology according to claim 1, it is characterised in that：The highest dwell pressure value
For 0.8-1.5MP.
6. engine cylinder body micropore sealing technology according to claim 1, it is characterised in that the preparation side of the fluid sealant
Method is：
A, 120-140 mass parts polyurethane modified epoxy resin is added in the first reaction kettle and is heated to 60 DEG C -65 DEG C, then
The hydroquinone of 0.2-0.45 mass parts is added, treats that it is completely dissolved mixing；
B, the methacrylic acid of 55-68 mass parts is added while in the second reaction kettle and is heated to 32-40 DEG C, adds 1-4
Initiator, 1.5-3.5 mass parts accelerating agent, the 0.8-1.8 mass parts kickers of mass parts, and it is sufficiently stirred mixing；
When C, keeping temperature 1.5-2 small first reaction kettle and the second reaction kettle, material in two reaction kettles is then mixed in one
Rise, and full and uniform stirring 15-20 minutes, it is cooled to room temperature, with spare.
7. engine cylinder body micropore sealing technology according to claim 6, it is characterised in that：Fluid sealant is being smeared every time
It is preceding, it is necessary to fluid sealant is heated to 40-45 DEG C, and be applied to cylinder body main oil gallery inner wall in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088278.7A CN107983603A (en) | 2018-01-30 | 2018-01-30 | Engine cylinder body micropore sealing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088278.7A CN107983603A (en) | 2018-01-30 | 2018-01-30 | Engine cylinder body micropore sealing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107983603A true CN107983603A (en) | 2018-05-04 |
Family
ID=62039930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810088278.7A Pending CN107983603A (en) | 2018-01-30 | 2018-01-30 | Engine cylinder body micropore sealing technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665771A (en) * | 2018-07-02 | 2020-01-10 | 山西裕鼎精密科技有限公司 | Gap closing method for metal plastic composite part |
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|---|---|---|---|---|
| CN101386981A (en) * | 2007-09-12 | 2009-03-18 | 浙江工贸职业技术学院 | Casting corrosion resistant processing solution and used casting anticorrosion treatment technology thereof |
| CN102101104A (en) * | 2011-01-04 | 2011-06-22 | 北京航空航天大学 | Aviation engine sealant sealing thrust increasing method |
| CN102504738A (en) * | 2011-10-07 | 2012-06-20 | 北京天诚宇新材料技术有限公司 | Quick mending agent |
| CN102676064A (en) * | 2012-04-28 | 2012-09-19 | 烟台德邦科技有限公司 | Matte adhesive and preparation method thereof |
| CN104356992A (en) * | 2014-10-27 | 2015-02-18 | 苏州市胶粘剂厂有限公司 | Anaerobic adhesive as well as preparation method and application thereof |
-
2018
- 2018-01-30 CN CN201810088278.7A patent/CN107983603A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386981A (en) * | 2007-09-12 | 2009-03-18 | 浙江工贸职业技术学院 | Casting corrosion resistant processing solution and used casting anticorrosion treatment technology thereof |
| CN102101104A (en) * | 2011-01-04 | 2011-06-22 | 北京航空航天大学 | Aviation engine sealant sealing thrust increasing method |
| CN102504738A (en) * | 2011-10-07 | 2012-06-20 | 北京天诚宇新材料技术有限公司 | Quick mending agent |
| CN102676064A (en) * | 2012-04-28 | 2012-09-19 | 烟台德邦科技有限公司 | Matte adhesive and preparation method thereof |
| CN104356992A (en) * | 2014-10-27 | 2015-02-18 | 苏州市胶粘剂厂有限公司 | Anaerobic adhesive as well as preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 华东化工学院: "《玻璃钢机械与设备》", 31 July 1981, 中国建筑工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110665771A (en) * | 2018-07-02 | 2020-01-10 | 山西裕鼎精密科技有限公司 | Gap closing method for metal plastic composite part |
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Application publication date: 20180504 |
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