CN103612356A - Method for vulcanizing solid tires in tank-type variable-pressure variable-temperature manner - Google Patents
Method for vulcanizing solid tires in tank-type variable-pressure variable-temperature manner Download PDFInfo
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- CN103612356A CN103612356A CN201310611329.7A CN201310611329A CN103612356A CN 103612356 A CN103612356 A CN 103612356A CN 201310611329 A CN201310611329 A CN 201310611329A CN 103612356 A CN103612356 A CN 103612356A
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Abstract
The invention discloses a method for vulcanizing solid tires in a tank-type variable-pressure variable-temperature manner. The method comprises the following steps: a high-pressure flashing stage, that is, evacuating air between a tire blank and a mold; a high-pressure low-temperature vulcanizing stage, that is, closing the mold under the pressure of 1082 plus or minus 2T and vulcanizing in a gradually heating mode; a high-pressure high-temperature vulcanizing stage, that is, keeping the mold closing pressure of a vulcanizing tank to be 1082 plus or minus 2T and vulcanizing for 180min by adopting steam at 135 plus or minus 2 DEG C; a low-pressure high-temperature vulcanizing stage, that is, relieving the mold closing pressure of the vulcanizing tank until 260 plus or minus 2T, and vulcanizing with steam at 135 plus or minus 2 DEG C until the optimum vulcanizing is finished; a low-pressure low-temperature tank-sealing stage, that is, keeping the mold closing pressure of the vulcanizing tank to be 260 plus or minus 2T without steam introduction, and sealing the tank for 60min and finishing the vulcanizing operation; taking out the tire after the pressure in the tank is zero. The method can effectively solve the quality problem of cracks of the vulcanized tire and has significances in improving safety and service life of the vulcanizing equipment and saving energy.
Description
Technical field
The invention belongs to polymer rubber tyre production field, be specifically related to a kind of vulcanization process of solid tyre, especially a kind of method of solid tyre pot type pressure and temperature varying sulfuration.
Technical background
Solid tyre carcass is generous, is widely used in engineering machinery.Existing solid tyre adopts vulcanizer or vulcanizing tank to vulcanize more, the technique of its sulfuration is that solid tyre is placed on then carrying out the sulfuration of constant voltage constant temperature with vulcanizer or vulcanizing tank in the mould of runner mouth, and the pressure and temperature vulcanizing in sulfidation remains constant.The problem that the method for this constant voltage constant temperature sulfuration mainly exists is: the one, because solid tyre carcass is generous, when constant voltage constant temperature vulcanizes, the outer field robber materials of the former material carcass of mould inner wall rubber first expands, be introduced into the runner mouth of mould, after expanding after the robber materials of carcass inside, flow, like this because the outer layer rubber raw material swelling stress that the robber materials of carcass inside produces that first expands can not well be discharged, simultaneously because runner mouth cross section blocks or cross section diminishes, the mobility of inner robber materials when sulfuration is also poor, cause solid tyre after sulfuration due to the release of inner rubber raw material expansive force, thereby can cause the quality problems such as solid tyre external crack to produce.The 2nd, because vulcanizing equipment is for a long time in high-temperature high-pressure state, the service life of equipment, security all can be received impact.The 3rd, long HTHP wastes energy.
Summary of the invention
According to current solid tyre constant voltage constant temperature sulfuration present situation, the invention provides a kind of method of solid tyre pot type pressure and temperature varying sulfuration, the method is for the sulfuration of solid tyre, in sulfidation, adopt pressure and temperature varying sulfuration, can effectively solve tyre vulcanization quality problems, can improve security and the service life of vulcanizing equipment, and save the energy.
In order to realize the present invention, the technical scheme that the method for a kind of solid tyre pot type of the present invention pressure and temperature varying sulfuration is taked is as follows:
It comprises following sulfurating stage:
1) high pressure dodges the pressure stage: will after solid tyre fetus dress mould, be placed in vulcanizing tank, adopt 1000T pressure matched moulds, matched moulds keeps off-load after 10 seconds, off-load after 10 seconds again matched moulds to 1000T, 4-5 matched moulds, off-load matched moulds process more so repeatedly, the air that fetus and mould are asked is drained;
2) high pressure low temperature sulfurating stage: step 1), optimum cure starts, adopt 1082 ± 2T pressure matched moulds, take the vulcanization progressively heating up, be filled with successively temperature and be the steam vulcanization (cure) 1 hour of 100 ± 2 degrees Celsius, be filled with 105 ± 2 degrees Celsius of steam vulcanization (cure)s 30 minutes, be filled with 120 degrees Celsius of steam vulcanization (cure)s 30 minutes;
3) high pressure-temperature sulfurating stage: step 2), vulcanizing tank mold clamping force keeps 1082 ± 2T, adopts 135 ± 2 degrees Celsius of steam vulcanization (cure)s 180 minutes;
4) low-voltage high-temperature sulfurating stage: step 3), vulcanizing tank mold clamping force pressure release to 260 ± 2T, vapor (steam) temperature keeps 135 ± 2 degrees Celsius to be vulcanized, until optimum cure finishes;
5) the vexed tank stage of low-pressure low-temperature: step 4), vulcanizing tank mold clamping force keeps 260 ± 2T, and steam no longer enters in tank, and 60 minutes after cure processes of vexed tank finish;
6) after tank internal pressure is zero, can opening is got tire.
The method of a kind of solid tyre pot type of the present invention pressure and temperature varying sulfuration, the vulcanizing equipment adopting is existing hydraulic pressure locked mode vulcanizing tank.
The method of a kind of solid tyre pot type of the present invention pressure and temperature varying sulfuration, because the pressure and temperature that the optimum cure stage adopts is different, high pressure low temperature sulfurating stage is transitioned into after low-voltage high-temperature sulfurating stage, the internal stress that the robber materials of carcass inside expands can effectively be discharged, after high temperature, the mobility of robber materials in runner is better, can overcome the problem of the rear solid tyre crackle of sulfuration completely, can significantly improve the vulcanized quality of solid tyre, can reduce the time that vulcanizing tank is subject to high pressure simultaneously, can significantly improve service life and the security of equipment, and accomplish that saving keeps the energy of high pressure.
The specific embodiment
Below by example, the present invention is described further, it should be noted that the present embodiment is only used to further illustrate the present invention, but do not limit to its scope, particularly do not limit to according to the vulcanization parameters of solid tyre size specification.
A method for solid tyre pot type pressure and temperature varying sulfuration, it comprises the following steps:
1) high pressure dodges the pressure stage: will after solid tyre fetus dress mould, be placed in vulcanizing tank, adopt 1000T pressure matched moulds, matched moulds keeps off-load after 10 seconds, off-load after 10 seconds again matched moulds to 1000T, 4-5 matched moulds, off-load matched moulds process again, drains the air between fetus and mould so repeatedly;
2) high pressure low temperature sulfurating stage: step 1), optimum cure starts, adopt 1082 ± 2T pressure matched moulds, take the vulcanization progressively heating up, be filled with successively temperature and be the steam vulcanization (cure) 1 hour of 100 ± 2 degrees Celsius, be filled with 105 ± 2 degrees Celsius of steam vulcanization (cure)s 30 minutes, be filled with 120 degrees Celsius of steam vulcanization (cure)s 30 minutes;
3) high pressure-temperature sulfurating stage: step 2), vulcanizing tank mold clamping force keeps 1082 ± 2T, adopts 135 ± 2 degrees Celsius of steam vulcanization (cure)s 180 minutes;
4) low-voltage high-temperature sulfurating stage: step 3), vulcanizing tank mold clamping force pressure release to 260 ± 2T, vapor (steam) temperature keeps 135 ± 2 degrees Celsius to be vulcanized, until optimum cure finishes;
5) the vexed tank stage of low-pressure low-temperature: step 4), vulcanizing tank mold clamping force keeps 260 ± 2T, and steam no longer enters in tank, and 60 minutes after cure processes of vexed tank finish;
6) after tank internal pressure is zero, can opening is got tire.
The sulfuration of method applicable the carcass generous tyre vulcanization, particularly solid tyre of the sulfuration of a kind of solid tyre pot type of the present invention pressure and temperature varying.
The present invention can effectively solve that inside tires rubber vulcanization swelling stress can not discharge and the problem of the tire crackle that causes has great importance to improving tire quality.
Claims (1)
1. the method that solid tyre pot type pressure and temperature varying vulcanizes, is characterized in that comprising following sulfurating stage:
1) high pressure dodges the pressure stage: will after solid tyre fetus dress mould, be placed in vulcanizing tank, adopt 1000T pressure matched moulds, matched moulds keeps off-load after 10 seconds, off-load after 10 seconds again matched moulds to 1000T, 4-5 matched moulds, off-load matched moulds process again, drains the air between fetus and mould so repeatedly;
2) high pressure low temperature sulfurating stage: step 1), optimum cure starts, adopt 1082 ± 2T pressure matched moulds, take the vulcanization progressively heating up, be filled with successively temperature and be the steam vulcanization (cure) 1 hour of 100 ± 2 degrees Celsius, be filled with 105 ± 2 degrees Celsius of steam vulcanization (cure)s 30 minutes, be filled with 120 degrees Celsius of steam vulcanization (cure)s 30 minutes;
3) high pressure-temperature sulfurating stage: step 2), vulcanizing tank mold clamping force keeps 1082 ± 2T, adopts 135 ± 2 degrees Celsius of steam vulcanization (cure)s 180 minutes;
4) low-voltage high-temperature sulfurating stage: step 3), vulcanizing tank mold clamping force pressure release to 260 ± 2T, vapor (steam) temperature keeps 135 ± 2 degrees Celsius to be vulcanized, until optimum cure finishes;
5) the vexed tank stage of low-pressure low-temperature: step 4), vulcanizing tank mold clamping force keeps 260 ± 2T, and steam no longer enters in tank, and 60 minutes after cure processes of vexed tank finish;
6) after tank internal pressure is zero, can opening is got tire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310611329.7A CN103612356A (en) | 2013-11-28 | 2013-11-28 | Method for vulcanizing solid tires in tank-type variable-pressure variable-temperature manner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310611329.7A CN103612356A (en) | 2013-11-28 | 2013-11-28 | Method for vulcanizing solid tires in tank-type variable-pressure variable-temperature manner |
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| CN103612356A true CN103612356A (en) | 2014-03-05 |
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| CN201310611329.7A Pending CN103612356A (en) | 2013-11-28 | 2013-11-28 | Method for vulcanizing solid tires in tank-type variable-pressure variable-temperature manner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037813A (en) * | 2019-12-27 | 2020-04-21 | 江门市鑫辉密封科技有限公司 | Secondary vulcanization method for thick rubber product |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721590A (en) * | 1986-07-24 | 1988-01-26 | The Uniroyal Goodrich Tire Company | Pressure-determined blowdown period for each of multiple, commonly manifolded curing presses |
| US4816198A (en) * | 1985-02-25 | 1989-03-28 | The Uniroyal Goodrich Tire Company | Process for curing thick-walled articles |
| KR100876437B1 (en) * | 2007-10-29 | 2008-12-29 | 한국타이어 주식회사 | Vulcanizing apparatus and method of green tire |
| CN101547775A (en) * | 2006-12-05 | 2009-09-30 | 株式会社神户制钢所 | Tire vulcanizer and tire vulcanizing method |
| CN101837618A (en) * | 2009-11-16 | 2010-09-22 | 盐城森光橡胶制品有限公司 | Solid tire sulfuration technology for inner forming, outer heating and segment temperature control |
| CN102363339A (en) * | 2011-11-08 | 2012-02-29 | 双钱集团（如皋）轮胎有限公司 | Tyre rubber vulcanizing technology |
-
2013
- 2013-11-28 CN CN201310611329.7A patent/CN103612356A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4816198A (en) * | 1985-02-25 | 1989-03-28 | The Uniroyal Goodrich Tire Company | Process for curing thick-walled articles |
| US4721590A (en) * | 1986-07-24 | 1988-01-26 | The Uniroyal Goodrich Tire Company | Pressure-determined blowdown period for each of multiple, commonly manifolded curing presses |
| CN101547775A (en) * | 2006-12-05 | 2009-09-30 | 株式会社神户制钢所 | Tire vulcanizer and tire vulcanizing method |
| CN101547775B (en) * | 2006-12-05 | 2012-07-18 | 株式会社神户制钢所 | Tire vulcanizer and tire vulcanizing method |
| KR100876437B1 (en) * | 2007-10-29 | 2008-12-29 | 한국타이어 주식회사 | Vulcanizing apparatus and method of green tire |
| CN101837618A (en) * | 2009-11-16 | 2010-09-22 | 盐城森光橡胶制品有限公司 | Solid tire sulfuration technology for inner forming, outer heating and segment temperature control |
| CN102363339A (en) * | 2011-11-08 | 2012-02-29 | 双钱集团（如皋）轮胎有限公司 | Tyre rubber vulcanizing technology |
Non-Patent Citations (1)
| Title |
|---|
| 沈世刚 等: "硫化罐变温变压硫化工艺", 《轮胎工业》, vol. 27, no. 12, 10 December 2007 (2007-12-10), pages 754 - 757 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037813A (en) * | 2019-12-27 | 2020-04-21 | 江门市鑫辉密封科技有限公司 | Secondary vulcanization method for thick rubber product |
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Application publication date: 20140305 |