CN103538182B - The vulcanization process of silicone rubber seal goods - Google Patents
The vulcanization process of silicone rubber seal goods Download PDFInfo
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- CN103538182B CN103538182B CN201310511173.5A CN201310511173A CN103538182B CN 103538182 B CN103538182 B CN 103538182B CN 201310511173 A CN201310511173 A CN 201310511173A CN 103538182 B CN103538182 B CN 103538182B
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- silicone rubber
- rubber seal
- goods
- mould
- seal goods
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Abstract
The present invention relates to a kind of sulfuration process, the vulcanization process of a kind of silicone rubber seal goods.Comprise the following steps: unvulcanized semi-finished product silicone rubber seal goods are loaded in mould, mould is placed in the gap between two-layer hot plate, open evacuation function, by the sealing space vacuum state between two flat boards, then vulcanize.The method significantly reduces the rotten meat of goods, the probability of sticking to mould appearance after sulfuration, thus greatly reduces the percent defective of vulcanized article.
Description
Technical field
The present invention relates to a kind of sulfuration process, the vulcanization process of a kind of silicone rubber seal goods.
Background technology
At present, existing silicone rubber seal goods are typically all and complete on vulcanizing press.Silica gel product sizing material is positioned over molding
After mould, many air can be brought in the moment of matched moulds, and air can not combine together with silica gel materials, without
These air are emitted, will result in silica gel product molding rear surface and produce bubble, to the processing method that this is general be:
After matched moulds pressurization, mould is opened, in order to the air in mould is discharged, and this process is referred to as aerofluxus.Owing to the Mooney of silicone rubber glues
Spending low, if using conventional parameter to set in sulfuration early stage, aerofluxus 1-2 time, silicone rubber is in aerofluxus pressurized process, just
Mold cavity can be overflowed, so that should be outside the silicone rubber in mold cavity has spilt into die cavity, in sulfidation, type
The silicone rubber of intracavity will reduce accordingly, and in die cavity, the pressure of local silicon rubber will reduce, the pressure in silicon rubber vulcanization three elements
Power reduces, even if having enough curing temperatures and time, silicone rubber also will not vulcanize normally, and after causing sulfuration, goods easily go out
The phenomenons such as existing rotten meat, sticking to mould.
Summary of the invention
It is an object of the invention to overcome drawbacks described above present in existing silicon rubber vulcanization process, it is proposed that silicone rubber seal goods
Vulcanization process, significantly reduce the rotten meat of goods after sulfuration, probability that sticking to mould occurs, thus greatly reduce vulcanized article
Percent defective.
The present invention is to use following technical scheme to realize: the vulcanization process of a kind of silicone rubber seal goods, comprises the following steps:
(1) unvulcanized semi-finished product silicone rubber seal goods are loaded in mould, mould are placed in the gap between two-layer hot plate,
In hydraulic cylinder, logical hydraulic medium, is set as 100% by the main frame rate of climb, and plunger promotes traverser and hot plate to move upward,
To mould topmost at upper hot plate 0.5-1.0cm, it is exhausted leaving certain space；
(2) evacuation function is opened, by the sealing space vacuum state between two flat boards；
(3) locking speed is set as 30-50%, and promotes movable flat board to compress semi-finished product silicone rubber seal goods, compresses silicon rubber
After glue sealing article, sulfuration is opened；Setting curing temperature as 170-175 DEG C, cure time is the 300-360 second；
In sulfidation, to heating flat board Nei Tongjia thermal medium, so that silicone rubber seal goods obtain the temperature needed for sulfidation
Degree, by above-mentioned curing cycle, by complete for the sulfuration of silicone rubber seal goods；
(4) being got rid of by the hydraulic medium in hydraulic cylinder, moving platen slowly declines, and takes out silicone rubber seal goods.
The invention has the beneficial effects as follows: by the setting of period parameters before sulfuration, effectively reduce the rotten meat of goods after sulfuration, viscous
The probability that mould occurs, thus the percent defective of vulcanized article is greatly reduced.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
The present invention includes the vulcanization process of silicone rubber seal goods, and the method mainly comprises the steps that
(1) unvulcanized semi-finished product silicone rubber seal goods are loaded in mould, mould are placed in the gap between two-layer hot plate,
In hydraulic cylinder, logical hydraulic medium, such as oil or water, be set as 100% by the main frame rate of climb, and plunger promotes traverser and heat
Plate moves upward, to mould topmost at upper hot plate 0.5-1.0cm；
(2) evacuation function is opened, by the sealing space vacuum state between two flat boards；
(3) locking speed is set as 30-50%, and promotes movable flat board to compress semi-finished product silicone rubber seal goods, compresses silicon rubber
After glue sealing article, sulfuration is opened；Setting curing temperature as 170-175 DEG C, cure time is the 300-360 second；
In sulfidation, to heating flat board Nei Tongjia thermal medium, so that silicone rubber seal goods obtain the temperature needed for sulfidation
Degree, by above-mentioned curing cycle, by complete for the sulfuration of silicone rubber seal goods；
(4) being got rid of by the hydraulic medium in hydraulic cylinder, moving platen slowly declines, and takes out silicone rubber seal goods.
Claims (1)
1. the vulcanization process of silicone rubber seal goods, it is characterised in that comprise the following steps:
(1) unvulcanized semi-finished product silicone rubber seal goods are loaded in mould, mould are placed in the gap between two-layer hot plate,
In hydraulic cylinder, logical hydraulic medium, is set as 100% by the main frame rate of climb, and plunger promotes traverser and hot plate to move upward,
To mould topmost at upper hot plate 0.5-1.0cm, it is exhausted leaving certain space；
(2) evacuation function is opened, by the sealing space vacuum state between two flat boards；
(3) locking speed is set as 30-50%, and promotes movable flat board to compress semi-finished product silicone rubber seal goods, compresses silicon rubber
After glue sealing article, sulfuration is opened；Setting curing temperature as 170-175 DEG C, cure time is the 300-360 second；
In sulfidation, to heating flat board Nei Tongjia thermal medium, so that silicone rubber seal goods obtain the temperature needed for sulfidation
Degree, by above-mentioned curing cycle, by complete for the sulfuration of silicone rubber seal goods；
(4) being got rid of by the hydraulic medium in hydraulic cylinder, moving platen slowly declines, and takes out silicone rubber seal goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511173.5A CN103538182B (en) | 2013-10-25 | 2013-10-25 | The vulcanization process of silicone rubber seal goods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511173.5A CN103538182B (en) | 2013-10-25 | 2013-10-25 | The vulcanization process of silicone rubber seal goods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103538182A CN103538182A (en) | 2014-01-29 |
| CN103538182B true CN103538182B (en) | 2016-08-17 |
Family
ID=49962220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310511173.5A Expired - Fee Related CN103538182B (en) | 2013-10-25 | 2013-10-25 | The vulcanization process of silicone rubber seal goods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103538182B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273246Y (en) * | 1996-06-19 | 1998-01-28 | 大连第一锻压机械设备厂 | Vacuum-pumping flat-plate vulcanizer |
| CN102431103A (en) * | 2011-12-20 | 2012-05-02 | 厦门市金汤橡塑有限公司 | Mould for bonding rubber layer on plastic assembly and manufacturing method applying same |
| CN202742593U (en) * | 2012-07-25 | 2013-02-20 | 宁波千普机械制造有限公司 | Vacuumpumping structure of rubber injection molding vulcanizing machine |
-
2013
- 2013-10-25 CN CN201310511173.5A patent/CN103538182B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273246Y (en) * | 1996-06-19 | 1998-01-28 | 大连第一锻压机械设备厂 | Vacuum-pumping flat-plate vulcanizer |
| CN102431103A (en) * | 2011-12-20 | 2012-05-02 | 厦门市金汤橡塑有限公司 | Mould for bonding rubber layer on plastic assembly and manufacturing method applying same |
| CN202742593U (en) * | 2012-07-25 | 2013-02-20 | 宁波千普机械制造有限公司 | Vacuumpumping structure of rubber injection molding vulcanizing machine |
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| Publication number | Publication date |
|---|---|
| CN103538182A (en) | 2014-01-29 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20181025 |