CN102514127A - High pressure vulcanization technique of driving belt - Google Patents
High pressure vulcanization technique of driving belt Download PDFInfo
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- CN102514127A CN102514127A CN2011104218628A CN201110421862A CN102514127A CN 102514127 A CN102514127 A CN 102514127A CN 2011104218628 A CN2011104218628 A CN 2011104218628A CN 201110421862 A CN201110421862 A CN 201110421862A CN 102514127 A CN102514127 A CN 102514127A
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Abstract
The invention discloses a high pressure vulcanization technique of a driving belt, which comprises the steps of: positioning a fixed forming drum and a belt blank in a vertical vulcanization tank, sleeving a rubber sleeve, covering a cover plate, closing a tank cover, filling external pressure vapor, maintaining the pressure for 1 min after the external pressure reaches to 0.8-1.0 MPa, closing an external pressure vapor valve, simultaneously filling nitrogen of 150-160 DEG C until the external pressure is 1.8 MPa, and maintaining a constant external pressure; filling internal pressure vapor until the internal pressure is 0.5-0.6 MPa, maintaining a constant internal pressure, timing to begin the vulcanization technique, and finishing the vulcanization technique after the vulcanization duration is finished. The high pressure vulcanization technique disclosed by the invention has the advantages of improving the traditional vulcanization technique of driving belt to increase the vulcanization external pressure by nitrogen so as to guarantee an external and internal pressure difference of about 1.3 MPa during the vulcanization process; compared with the traditional technique, the external and internal pressure difference is increased for 300%, and the driving belt obtained by the vulcanization technique under the external and internal pressure difference condition has better density and stable quality, such problems as delaminating and air holes, and the like, are not easy to be generated, and the service life of the belt can be prolonged for 41%.
Description
Technical field
The present invention relates to a kind of production technology of rubber, especially a kind of transmission belt vulcanizing technology.
Background technology
At present, in the driving-belt production field, have 80% to adopt the sulfuration of autoclave press gum cover, 20% adopts drum vulcanizer or sulfuration flat board to vulcanize.Automobile driving belt mainly adopts the sulfuration of autoclave press gum cover.Its process is: take off together with made-up belt fixing assembly drum from make-up machine, place in the autoclave press, put gum cover, cover cover plate, cover closes; Feed external pressure steam, treat that steam pressure reaches 0.8～1.0MPa after, pick up counting when pressing steam to reach 0.4～0.5MPa in feeding again, cure time is looked product and is decided, and is generally 35 minutes.In sulfidation, inside and outside steam pressure keeps certain pressure reduction 0.3～0.5MPa from start to finish.But this process technology is simple, and production efficiency is high, but inside and outside differential pressure is merely 0.4～0.5MPa during sulfuration, and such technology can cause the compactness of automobile driving belt lower, and inherent quality is unstable, is prone to problems such as delamination, pore.
Summary of the invention
The objective of the invention is: the high-pressure curing process that a kind of driving-belt is provided; It has improved traditional transmission belt vulcanizing technology, and the compactness of the driving-belt that obtains according to this prepared is good, steady quality; Be not prone to problems such as delamination, pore, to overcome the deficiency of prior art.
The present invention is achieved in that the high-pressure curing process of driving-belt, it is characterized in that: fixedly assembly drum and made-up belt place in the autoclave press, put gum cover; Cover cover plate, and behind the cover that closes, feed external pressure steam; After treating that external pressure reaches 0.8～1.0MPa, the external pressure steam valve is closed in pressurize 1 minute; Nitrogen to the external pressure that feeds 150～160 ℃ simultaneously is 1.8 MPa, keeps external pressure constant, pressurize 6 minutes; Feed interior steam to the interior pressure of pressing again and reach 0.5～0.6MPa, pressure is constant in keeping, the sulfuration 30 minutes that picks up counting, and cure time is promptly accomplished sulfuration process after finishing.
In order to verify effect of the present invention, on GB13552-2008 fatigue life test stand frame, to test, under the situation of the material of use identical (neoprene), the polywedge bet that traditional sulfuration process is produced occurs crackle in running after 156 hours; And the polywedge bet that adopts the novel high-pressure sulfuration process to produce just occurs crackle in running after 221 hours, and belt can prolong 41% service life.And nitrogen belongs to inactive gas; Adopt nitrogen can effectively prolong the service life of gum cover, and, make cure time shorten owing to improved pressure in the sulfuration steam as the external pressure gas in the sulfidation; Improve production efficiency, reduced the consumption and the energy consumption of steam simultaneously.
Owing to adopted technique scheme, compared with prior art, the present invention improves traditional transmission belt vulcanizing technology; Adopt nitrogen to improve the sulfuration external pressure, the inside and outside differential pressure when making sulfuration can reach about 1.3MPa, compares with traditional handicraft; Inside and outside differential pressure has increased by 300%, and the compactness of the driving-belt that sulfuration obtains under such inside and outside differential pressure condition is better, steady quality; Be not prone to problems such as delamination, pore, product percent of pass can improve about 4%.The present invention is with low cost, and result of use is very desirable.
Description of drawings
Accompanying drawing 1 is a sketch map of the present invention.
The specific embodiment
Embodiments of the invention 1: the high-pressure curing process of driving-belt, as shown in Figure 1, fixedly assembly drum 3 places in the autoclave press 1 with made-up belt 4, puts gum cover 5; Cover cover plate 2, and behind the cover that closes, feed external pressure steam; After treating that external pressure reaches 1.0MPa, the external pressure steam valve is closed in pressurize 1 minute; Nitrogen to the external pressure that feeds 160 ℃ simultaneously is 1.8 MPa, keeps external pressure constant, pressurize 6 minutes; Feed interior steam to the interior pressure of pressing again and reach 0.5MPa, pressure is constant in keeping, the sulfuration 30 minutes that picks up counting, and cure time is promptly accomplished sulfuration process after finishing.In sulfidation, inside and outside differential pressure remains at 1.2 ~ 1.3MPa.
Claims (1)
1. the high-pressure curing process of a driving-belt, it is characterized in that: fixedly assembly drum and made-up belt place in the autoclave press, put gum cover; Cover cover plate, and behind the cover that closes, feed external pressure steam; After treating that external pressure reaches 0.8～1.0MPa, the external pressure steam valve is closed in pressurize 1 minute; Nitrogen to the external pressure that feeds 150～160 ℃ simultaneously is 1.8 MPa, keeps external pressure constant, pressurize 6 minutes; Feed interior steam to the interior pressure of pressing again and reach 0.5～0.6MPa, pressure is constant in keeping, the sulfuration 30 minutes that picks up counting, and cure time is promptly accomplished sulfuration process after finishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104218628A CN102514127A (en) | 2011-12-16 | 2011-12-16 | High pressure vulcanization technique of driving belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104218628A CN102514127A (en) | 2011-12-16 | 2011-12-16 | High pressure vulcanization technique of driving belt |
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| Publication Number | Publication Date |
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| CN102514127A true CN102514127A (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104218628A Pending CN102514127A (en) | 2011-12-16 | 2011-12-16 | High pressure vulcanization technique of driving belt |
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| CN (1) | CN102514127A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724560A (en) * | 2018-06-12 | 2018-11-02 | 芜湖市精准传动系统研究院 | A kind of transmission belt vulcanizing system and its vulcanization process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736693A (en) * | 2005-06-13 | 2006-02-22 | 杭州金泰胶带有限公司 | Tooth-shaped adhesive band conveyer forming method |
| CN101337411A (en) * | 2008-06-06 | 2009-01-07 | 杭州肯莱特传动工业有限公司 | Rubber transmission belt vulcanizing device and vulcanizing method thereof |
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2011
- 2011-12-16 CN CN2011104218628A patent/CN102514127A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736693A (en) * | 2005-06-13 | 2006-02-22 | 杭州金泰胶带有限公司 | Tooth-shaped adhesive band conveyer forming method |
| CN101337411A (en) * | 2008-06-06 | 2009-01-07 | 杭州肯莱特传动工业有限公司 | Rubber transmission belt vulcanizing device and vulcanizing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724560A (en) * | 2018-06-12 | 2018-11-02 | 芜湖市精准传动系统研究院 | A kind of transmission belt vulcanizing system and its vulcanization process |
| CN108724560B (en) * | 2018-06-12 | 2024-02-27 | 芜湖市精准传动系统研究院 | Driving belt vulcanizing system and vulcanizing method thereof |
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Application publication date: 20120627 |