CN103302945A - Preparation method for standard sealant test piece - Google Patents
Preparation method for standard sealant test piece Download PDFInfo
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- CN103302945A CN103302945A CN2012100610624A CN201210061062A CN103302945A CN 103302945 A CN103302945 A CN 103302945A CN 2012100610624 A CN2012100610624 A CN 2012100610624A CN 201210061062 A CN201210061062 A CN 201210061062A CN 103302945 A CN103302945 A CN 103302945A
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- test piece
- sealant
- mould
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Abstract
The invention relates to a preparation method for a test piece. According to a technical scheme in the invention, a preparation method for a standard sealant test piece comprises the following steps: placing a sealant between two anti-sticking films; putting the sealant together with the anti-sticking films in dies; stacking the dies containing the sealant and the anti-sticking films layer upon layer, wherein a steel cover plate is put on a top, and edges of the dies are totally aligned with edges of the cover plate; pressurizing the stacked dies in a press and after the sealant overflows from the edges of the dies, carrying out pressure maintaining until the sealant is nonstick; and sulfurizing a die pressing test piece under standard conditions until the test piece is nonstick, relieving pressure, taking out the test piece, peeling the anti-sticking films and placing the test piece in an open environment. According to the invention, the sealant is placed between the two anti-sticking films, and after the test piece is sulfurized in a standard environment for 24 h, the anti-sticking films can be easily peeled; in subsequent accelerated sulfuration, the surface of the test piece is directly exposed in the air, solvents in the test piece can easily volatilize, thereby realizing complete sulfuration, and thus, the high quality standard test piece can be prepared.
Description
Technical field
The present invention relates to a kind of test piece preparation method, relate in particular to a kind of sealant standard test piece preparation method.
Background technology
To new material, need to prepare the test piece of new material in the engineering test such as sealant, the making of existing test piece realizes that by a mold this mould comprises: mould of plastics, press etc.Wherein mould of plastics is by the polypropylene plastics injection mo(u)lding.As shown in Figure 1, manufacturing process is: load in mould of plastics 2 after sealant 1 is mixed, good mould is superimposed with loading, and superimposed mold periphery should align fully, sends under standard environment and takes out test piece when press is exerted pressure to sticking to mould tool not.
Because of the sealant natural vulcanization cycle longer, in actual research and production, sealant is mixing, accelerated cure must be continued in the back of loading, pressurize behind standard environment sulfuration 24H, and the test piece of mould of plastics making at this moment can not intactly be taken out, for guaranteeing that the intact mould of must being with of test piece carries out accelerated cure, because of the mould closing seam, makes that test piece solvent in sulfidation is not volatile, thereby cause sulfuration not exclusively, influence the test piece quality.
Summary of the invention
The technical problem to be solved in the present invention: a kind of sealant standard test piece of the present invention preparation method can guarantee to improve the test piece quality under the intact prerequisite of test piece.
Technical scheme of the present invention: a kind of sealant standard test piece preparation method comprises:
Sealant is placed between two antiseize membranes;
Sealant is placed mould together with antiseize membrane;
To the mould stacked in multi-layers of sealant and antiseize membrane be housed, put the steel cover plate topmost, mould and cover plate periphery align fully;
Superimposed mould is put into press together exert pressure, make mold periphery overflow behind the sealant pressurize to the sticking phase;
The mold pressing test piece is vulcanized under standard conditions to not sticking after date, rushes down to press and takes out test piece, throws off antiseize membrane and places open environment.
Concrete, described antiseize membrane is polyvinyl chloride.
Further, described mould is steel mould.
Beneficial effect of the present invention: the present invention places sealant between two antiseize membranes, test piece is after standard environment vulcanizes 24 hours, can throw off antiseize membrane like a cork, in follow-up accelerated cure, the test piece surface is directly exposed in the air, solvent is easy to volatilization in the test piece, vulcanizes more fully, can produce high-quality standard test piece.
Description of drawings
Fig. 1 prepares the structural representation of mould for existing test piece.
Fig. 2 prepares the structural representation of mould for test piece of the present invention.
The specific embodiment
Fig. 2 prepares the structural representation of mould for test piece of the present invention, and wherein 3 is sealant, and 4 is mould, and 5 is antiseize membrane, and a kind of sealant standard test piece of the present invention preparation method comprises:
S101, sealant is placed between two antiseize membranes.
S102, sealant is placed mould together with antiseize membrane.
Antiseize membrane adopts polyvinyl chloride film, and mould adopts steel mould.With the sealant that mixes, place between two polyvinyl chloride films, sealant and polyvinyl chloride film are put into steel mould together, with small wood flattening-out roughly.Load requisite number purpose steel template according to pilot project.
S103, the mould stacked in multi-layers of sealant and antiseize membrane will be housed, and put the steel cover plate topmost, mould and cover plate periphery align fully.
S104, superimposed mould put into press together exert pressure, make mold periphery overflow sealant after pressurize to the sticking phase.
Press can adopt jack.
S105, mold pressing test piece are vulcanized under standard conditions to not sticking after date, rush down to press and take out test piece, throw off antiseize membrane and place open environment.
By sealant standard test piece preparation method of the present invention, antiseize membrane can easily open film, is easy to test piece than complete cure, produces high-quality standard test piece.Existing mould of plastics rigidity is not enough, and is yielding in the pressure process, causes thickness of test piece inhomogeneous, after adopting steel mould, the steel material surfaces externally and internally is smooth smooth, and is indeformable when extrusion forming, guaranteed the thickness of test piece in prescribed limit, the test piece densification of Zhi Zuoing simultaneously, level and smooth.
Claims (3)
1. a sealant standard test piece preparation method is characterized in that, comprising:
Sealant is placed between two antiseize membranes;
Sealant is placed mould together with antiseize membrane;
To the mould stacked in multi-layers of sealant and antiseize membrane be housed, put the steel cover plate topmost, mould and cover plate periphery align fully;
Superimposed mould is put into press together exert pressure, make mold periphery overflow behind the sealant pressurize to the sticking phase;
The mold pressing test piece is vulcanized under standard conditions to not sticking after date, rushes down to press and takes out test piece, throws off antiseize membrane and places open environment.
2. sealant standard test piece preparation method as claimed in claim 1 is characterized in that, described antiseize membrane is polyvinyl chloride.
3. sealant standard test piece preparation method as claimed in claim 1 is characterized in that, described mould is steel mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100610624A CN103302945A (en) | 2012-03-09 | 2012-03-09 | Preparation method for standard sealant test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100610624A CN103302945A (en) | 2012-03-09 | 2012-03-09 | Preparation method for standard sealant test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103302945A true CN103302945A (en) | 2013-09-18 |
Family
ID=49128862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100610624A Pending CN103302945A (en) | 2012-03-09 | 2012-03-09 | Preparation method for standard sealant test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103302945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604675A (en) * | 2013-11-28 | 2014-02-26 | 陕西飞机工业（集团）有限公司 | Preparation method for sealant single-side test piece |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106873A (en) * | 1985-09-13 | 1987-03-11 | 可乐丽股份有限公司 | Vulcanized rubber article and production method thereof |
| CN101885249A (en) * | 2009-05-14 | 2010-11-17 | 北京中铁长龙新型复合材料有限公司 | Novel sandwich composite plate and preparation method thereof |
-
2012
- 2012-03-09 CN CN2012100610624A patent/CN103302945A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106873A (en) * | 1985-09-13 | 1987-03-11 | 可乐丽股份有限公司 | Vulcanized rubber article and production method thereof |
| CN101885249A (en) * | 2009-05-14 | 2010-11-17 | 北京中铁长龙新型复合材料有限公司 | Novel sandwich composite plate and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 马启元，叶关英，王宝兰: "室温密封硫化剂标准试片制备方法的研究", 《航空材料学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604675A (en) * | 2013-11-28 | 2014-02-26 | 陕西飞机工业（集团）有限公司 | Preparation method for sealant single-side test piece |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130918 |