CN105196581A - Technical method for improving stability and adhesive strength between aircraft inner tube valve and adhesive material - Google Patents
Technical method for improving stability and adhesive strength between aircraft inner tube valve and adhesive material Download PDFInfo
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- CN105196581A CN105196581A CN201510635966.7A CN201510635966A CN105196581A CN 105196581 A CN105196581 A CN 105196581A CN 201510635966 A CN201510635966 A CN 201510635966A CN 105196581 A CN105196581 A CN 105196581A
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- adhesive
- inner tube
- valve cock
- aviation
- valve
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- Adhesives Or Adhesive Processes (AREA)
- Tires In General (AREA)
- Tyre Moulding (AREA)
Abstract
The invention discloses a technical method for improving stability and adhesive strength between an aircraft inner tube valve and an adhesive material. In an aircraft inner tube manufacturing process, a silane hot-vulcanized adhesive agent high in adhesive strength and stability is adopted for manufacturing of valves with rubber gaskets. The method specifically includes the technical steps of pretreatment of the valves, dip coating of the adhesive agent, rubber coating, vulcanization and the like. Adoption of the technical method can effectively improve stability and adhesive strength between the aircraft inner tube valve and the adhesive material to technically guarantee realization of an aircraft inner tube inflation pressure maintaining function and safety in use of aircraft outer tubes with inner tubes.
Description
Technical field
The present invention relates to aviation inner tube valve, specifically a kind ofly improve the bonding strength of aviation inner tube valve and sizing material and the process of stability.
Background technology
Aircraft tyre can be divided into interior fetalism and tubeless type aircraft tyre.Have interior fetalism aircraft tyre could inflate by the fit on inner tube of a tyre, realize the topmost function of its aircraft tyre---bear the load of aircraft and slide race.Therefore the air-tightness of the aviation inner tube of a tyre and quality most important to there being interior fetalism aircraft tyre.
The function of aviation inner tube valve is to the venting of aviation tire tube air-inflating, and air pressure in airtight maintenance during use.The manufacture process of the aviation inner tube of a tyre is mainly divided into following steps:
1., after metal valve cock and valve rubber pad sizing material (hereinafter referred to as rubber cushion glue) carry out preliminary sulfuration adhesion in a mold, make the valve cock of belt glue pad.
2. the aviation inner tube of a tyre is shaping, the valve cock of belt glue pad and tube body is fitted time shaping.
3., by the tyre tube vulcanizer of forming, the valve cock of belt glue pad is adhered on the inner tube of a tyre by post-cure.
Usually in the manufacture process of the aviation inner tube of a tyre
,the sulfuration adhesion technique that the valve cock of belt glue pad adopts is straight bonding, that is:
1, valve cock basic solvent clean surface greasy dirt, then use warm water cleaning.
2, the preparation of acid treating solution.
3, valve cock soaks with acid treating solution and removes surface oxide layer, then uses warm water cleaning, oven dry.
4, the preparation of valve cock rubber cement, adds gasoline immersion with rubber cushion glue and forms.
5, valve cock dip-coating rubber cement, and dry.
6, impregnation dry after valve cock encapsulate and put into mold cure, make the valve cock of belt glue pad.
7, when the aviation inner tube of a tyre is shaping, the valve cock of belt glue pad is fitted on tube body, sulfuration together with the aviation inner tube of a tyre, obtained finished product.
The shortcoming of the method is: the bonding strength of valve cock and rubber cushion glue is lower, and by the impact of the factors such as glue stuff compounding train number, technological fluctuation, valve cock material, bond properties fluctuation is very large, often occurs defective.After adopting the obtained inner tube valve of the method and rubber cushion glue to carry out disbonded test, it is few that glue amount is covered on valve cock surface, is generally less than 50%, and more even covering glue under extreme case does not all have.The coherence request of another the method to rubber vulcanization characteristic is high, and due to the fluctuation of factory technics condition in actual production, often occurs that sizing material is defective in batch, causes waste, increases production cost; And technique versus busy.
Summary of the invention
The object of the invention is the defect for solving existing process, improve bonding effect, improve aviation inner tube valve and sizing material bonding strength and stability thereof, be the qualification rate of the raising aviation inner tube of a tyre, and have the safe handling of interior fetalism aviation cover tire to provide technical guarantee.
realizing technical scheme of the present invention is:
The present invention is in the manufacture process of the aviation inner tube of a tyre
,the valve cock of belt glue pad makes, and adopts the adhesive method that bonding strength is high and stable, replaces original straight bonding; Adopt the silane system Heat vulcanization adhesive that bonding strength is high and stable.Method step is as follows:
1, surface metal oxidization layer is removed in valve cock polishing;
2, valve cock adhesive surface 120# gasoline is cleaned 2 ~ 4 times with wipe oil, then dry;
3, by valve cock dip-coating silane system Heat vulcanization adhesive, in 40 DEG C ~ 55 DEG C baking ovens, 20min ~ 30min is dried to bone dry;
4, by valve cock dip-coating silane system Heat vulcanization adhesive, in the baking oven of 50 DEG C ~ 65 DEG C, 20min ~ 30min is dried to bone dry;
5, valve cock encapsulate sulfuration, makes the valve cock of belt glue pad.Conditions of vulcanization is: dull and stereotyped pressure: 10 ~ 20Mpa; Steam pressure: 0.55 ~ 0.65Mpa, cure time: 10 ~ 15min;
6, when the aviation inner tube of a tyre is shaping, the valve cock of belt glue pad is fitted on tube body, then makes aviation inner tube finished product with the inner tube of a tyre together sulfuration.
Described silane system Heat vulcanization adhesive is the adhesive of the brand such as Kai Muluoke, ROHM AND HAAS.
Through test: the aviation inner tube of a tyre produced by the method, detect the bonding strength of its valve cock and sizing material, and glue amount is covered on valve cock surface, all will significantly improve (see table 1) than former method; Another adhesion stability also improves comparatively before, does not occur that bonding is defective in continuous seepage.
Table 1: the sample bond properties of the inventive method
| Valve cock inner mold | Bonding strength | Glue amount is covered on surface | Remarks |
| Straight nozzle type (between valve cock bar portion and gum cover) KN/m | 9～15 | More than 80% | |
| Band base type (between valve spud and rubber cushion) N | 500～1000 | More than 80% | Bonding strength size is relevant with base size |
advantage of the present invention
The invention provides a kind of process improving aviation inner tube valve and sizing material bonding strength and stability.Solve existing manufacture method, the bonding strength of valve cock and sizing material be not high, poor stability, after sizing material and valve cock are peeled off, it is few that glue amount is covered on valve cock surface, the defect that production cost is high.The process provided is relatively simple.The method can be aviation tire tube air-inflating pressure holding function and realizes, and has the safe handling of interior fetalism aviation cover tire to provide technical guarantee.
Detailed description of the invention
1, surface metal oxidization layer is removed in valve cock polishing.
2, valve cock adhesive surface 120# gasoline is cleaned 3 times with wipe oil, then dry.
3, by valve cock dip-coating Chemlok205 adhesive, in 50 DEG C of baking ovens, 25min is dried to bone dry.
4, by valve cock dip-coating Chemlok220 adhesive, in the baking oven of 60 DEG C, 25min is dried to bone dry.
5, valve cock encapsulate sulfuration, makes the valve cock of belt glue pad.Conditions of vulcanization is: dull and stereotyped pressure: 15Mpa; Steam pressure: 0.6Mpa, cure time: 13min.
6, when the aviation inner tube of a tyre is shaping, the valve cock of belt glue pad is fitted on tube body, then makes aviation inner tube finished product with the inner tube of a tyre together sulfuration.
Claims (3)
1. improve the bonding strength of aviation inner tube valve and sizing material and a process for stability, it is characterized in that: comprise the steps:
(1) surface metal oxidization layer is removed in valve cock polishing;
(2) valve cock adhesive surface 120# gasoline is cleaned 2 ~ 4 times with wipe oil, then dry;
(3) by valve cock dip-coating adhesive, in 40 DEG C ~ 55 DEG C baking ovens, 20min ~ 30min is dried to bone dry;
(4) by valve cock dip-coating adhesive, in the baking oven of 50 DEG C ~ 65 DEG C, 20min ~ 30min is dried to bone dry;
(5) valve cock encapsulate sulfuration, makes the valve cock of belt glue pad, and conditions of vulcanization is: dull and stereotyped pressure: 10 ~ 20Mpa; Steam pressure: 0.55 ~ 0.65Mpa, cure time: 10 ~ 15min;
(6) when the aviation inner tube of a tyre is shaping, the valve cock of belt glue pad is fitted on tube body, then makes aviation inner tube finished product with the inner tube of a tyre together sulfuration.
2. process according to claim 1, is characterized in that: described adhesive is silane system Heat vulcanization adhesive.
3. process according to claim 2, is characterized in that: described silane system Heat vulcanization adhesive is Kai Muluoke adhesive or ROHM AND HAAS adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510635966.7A CN105196581A (en) | 2015-09-30 | 2015-09-30 | Technical method for improving stability and adhesive strength between aircraft inner tube valve and adhesive material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510635966.7A CN105196581A (en) | 2015-09-30 | 2015-09-30 | Technical method for improving stability and adhesive strength between aircraft inner tube valve and adhesive material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105196581A true CN105196581A (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510635966.7A Pending CN105196581A (en) | 2015-09-30 | 2015-09-30 | Technical method for improving stability and adhesive strength between aircraft inner tube valve and adhesive material |
Country Status (1)
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| CN (1) | CN105196581A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2709224Y (en) * | 2004-05-25 | 2005-07-13 | 徐建龙 | Rubber pad valve mouth |
| CN102115542A (en) * | 2010-12-20 | 2011-07-06 | 洛阳双瑞橡塑科技有限公司 | Method for adhering vulcanized rubber to metal |
| CN102899002A (en) * | 2012-08-15 | 2013-01-30 | 南京信息工程大学 | Adhesive used for bonding vulcanized ethylene propylene diene monomer rubber and cast iron, and application thereof |
| CN103552237A (en) * | 2013-10-31 | 2014-02-05 | 湖北三江航天江北机械工程有限公司 | Method for improving vulcanization bonding strength of natural rubber elastic element and metal reinforcing element of flexible joint |
| CN104108181A (en) * | 2014-06-24 | 2014-10-22 | 漳州众鑫橡胶有限公司 | Rubber and metal bonding technology |
-
2015
- 2015-09-30 CN CN201510635966.7A patent/CN105196581A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2709224Y (en) * | 2004-05-25 | 2005-07-13 | 徐建龙 | Rubber pad valve mouth |
| CN102115542A (en) * | 2010-12-20 | 2011-07-06 | 洛阳双瑞橡塑科技有限公司 | Method for adhering vulcanized rubber to metal |
| CN102899002A (en) * | 2012-08-15 | 2013-01-30 | 南京信息工程大学 | Adhesive used for bonding vulcanized ethylene propylene diene monomer rubber and cast iron, and application thereof |
| CN103552237A (en) * | 2013-10-31 | 2014-02-05 | 湖北三江航天江北机械工程有限公司 | Method for improving vulcanization bonding strength of natural rubber elastic element and metal reinforcing element of flexible joint |
| CN104108181A (en) * | 2014-06-24 | 2014-10-22 | 漳州众鑫橡胶有限公司 | Rubber and metal bonding technology |
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Application publication date: 20151230 |
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| WD01 | Invention patent application deemed withdrawn after publication |