CN103450606B - A kind of gasket seal its preparation method and particular manufacturing craft thereof - Google Patents
A kind of gasket seal its preparation method and particular manufacturing craft thereof Download PDFInfo
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- CN103450606B CN103450606B CN201310421820.3A CN201310421820A CN103450606B CN 103450606 B CN103450606 B CN 103450606B CN 201310421820 A CN201310421820 A CN 201310421820A CN 103450606 B CN103450606 B CN 103450606B
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- gasket seal
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- cold runner
- air discharge
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Abstract
The invention discloses a kind of gasket seal, be characterized in adopting injection system to make by the raw material of following weight proportioning, high Mooney crude fluororubber 50 parts, low Mooney fluororubber rubber 50 parts, carbon black 20-40 part, acid-acceptor 2-8 part, vulcanizing agent 1-2 part; Adopt band cold runner die to produce, mold heated adopts multi-region temperature control method to make temperature more balanced, and cold runner die has one-level air discharge duct, secondary exhaust groove; Simplify operation, quality of item is good, and the percentage of A-class goods is high, easy and simple to handle, and labour intensity is low, mechanize and level of automation high.
Description
technical field:
The present invention relates to material seal technical field, specifically a kind of gasket seal its preparation method and particular manufacturing craft thereof.
background technology:
Packing technique for engine will consider the various media such as high temperature, high pressure, high outburst rate, superpower and lubricating oil, deicing fluid, gas.This just has higher requirement to the sealing in profit hole; The viton of single variety is difficult to meet injection technique simultaneously and requires and operating mode service requirements.
But viton is expensive, common mould can cause the rubber vulcanization in runner, cause the waste of sizing material, thus production cost is very high; After viton has been injected, cold runner internal pressure is larger, and pressure can not get timely release, and sizing material can be caused to be forced to flow out from note mouth, and the continuity that impact is produced, also easily causes the waste of sizing material; In addition, viton is because the high temperature of mould can be partial cross-linked thus produce some gases in injection process, and this part gas is difficult to drain clean by vacuumizing mode, is very easy to cause weld mark.
summary of the invention:
The object of the invention is the deficiency overcoming above-mentioned prior art, and a kind of gasket seal is provided.
Another object of the present invention is to provide a kind of preparation method of gasket seal.
Another object of the present invention is to provide the particular manufacturing craft realizing gasket seal preparation method.
The present invention mainly solves the viton fluorine cost of single variety is high, impact is produced continuity and easily causes the problems such as weld mark.
The present invention is achieved in that a kind of gasket seal, its special character is, injection system is adopted to make by the raw material of following weight proportioning, high Mooney crude fluororubber 50 parts, low Mooney fluororubber rubber 50 parts, carbon black 20-40 part, acid-acceptor 2-8 part, vulcanizing agent 1-2 part.
Further, described rubber is selected from viton or the bis-phenol vulcanised fluororubbers of peroxide cure.
Further, described carbon black is N990 or N660.
Further, described acid-acceptor is one or both mixing in zinc oxide, magnesium oxide, calcium hydroxide.
Further, described vulcanizing agent is selected from any one or two kinds of mixing of 2,5-dimethyl-2,5-bishexane, bisphenol AF.
The preparation method of a gasket seal of the present invention, its special character is to adopt the mould injection system of band cold runner to be processed into gasket seal, comprises following processing step:
A, by high Mooney viton part, low Mooney fluororubber part, puts into open type rubber mixing machine and plasticates 3 times, then add carbon black part, acid-acceptor part, vulcanizing agent part, and after mixing, thin-pass 5 times, then puts into preform machine shaping, becomes sizing material;
B, metallic framework cleaning by degreasing is clean after, dry;
C, metallic framework is immersed tackiness agent, levelling 5 minutes under the condition of 80 DEG C, then Procuring 10 minutes under the condition of 160 DEG C;
D, sizing material is fed rubber injection machine, start through plasticizing, injection, cold runner, then sulfuration, plasticization temperature, injection barrel temperature, cold runner temperature control at 60-90 DEG C, and mold cure temperature controls at 160-200 DEG C;
E, the gasket seal of sulfidization molding is put into baking oven carry out post vulcanization, post vulcanization temperature is 180-200 DEG C, time 6-10 hour.
Further, described injection adopts multiple note mouth to inject, and note mouth adopts spring loaded note mouth or floating note mouth.
Realize the particular manufacturing craft of gasket seal preparation method of the present invention, its special character is, described mould comprises die body, and die body is with cold runner, die body has gum-injecting port and one-level air discharge duct, secondary exhaust groove, and die body adopts multi-region temperature control method.
Further, described one-level air discharge duct degree of depth 0.075mm-0.1mm, adds air discharge duct after one-level air discharge duct and is deep to 0.5mm, is secondary exhaust groove.
Compared with the prior art a kind of gasket seal its preparation method of the present invention and particular manufacturing craft thereof have outstanding substantive distinguishing features and marked improvement, 1, operation is simplified, the high temperature fast cure of rubber item can be realized, shorten the production cycle: 2, quality of item is good, physical and mechanical properties evenly, stable, geometrical dimension is accurate; 3, the percentage of A-class goods is high, and glue limit is few, saves sizing material; 4, easy and simple to handle, labour intensity is low, mechanize and level of automation high.
accompanying drawing illustrates:
Fig. 1 is mould schematic diagram of the present invention.
embodiment:
In order to Comprehension and Implementation better, provide specific embodiment below in conjunction with accompanying drawing and describe the present invention in detail; Illustrated embodiment, only for explaining the present invention, is not for limiting the scope of the invention.
First be processed into die body 1, die body 1 is with cold runner, die body 1 has gum-injecting port 2 and one-level air discharge duct 3, secondary exhaust groove 4, one-level air discharge duct 3 degree of depth 0.075mm-0.1mm, secondary exhaust groove 4 degree of depth 0.5mm, die body 1 adopts multi-region temperature control method; Make mould of the present invention.
Embodiment 1, by the high Mooney viton P959 50Kg of peroxide cure, the low Mooney fluororubber P457 50Kg of peroxide cure, put into open type rubber mixing machine to plasticate 3 times, then add carbon black N990 30Kg, magnesium oxide 2Kg, calcium hydroxide 3Kg, 2,5-dimethyl-2,5-bishexane 1.5Kg, after mixing, thin-pass 5 times, then puts into preform machine shaping, becomes sizing material; After metallic framework cleaning by degreasing is clean, dry; Again metallic framework is immersed tackiness agent, levelling 5 minutes under the condition of 80 DEG C, then Procuring 10 minutes under the condition of 160 DEG C; Sizing material is fed rubber injection machine, starts through plasticizing, injection, cold runner, then sulfuration, plasticization temperature, injection adopts the injection of multiple note mouth, and note mouth adopts spring loaded note mouth, injection barrel temperature, cold runner temperature control at 75 DEG C, and mold cure temperature controls at 180 DEG C; The gasket seal of sulfidization molding is put into baking oven and carries out post vulcanization, post vulcanization temperature is 180 DEG C, 6 hours time.
Embodiment 2, by the high Mooney viton P757 50Kg of peroxide cure, the low Mooney fluororubber P459 50Kg of peroxide cure, put into open type rubber mixing machine to plasticate 3 times, then add carbon black N990 40Kg, magnesium oxide 3Kg, calcium hydroxide 5Kg, 2,5-dimethyl-2,5-bishexane 1Kg, after mixing, thin-pass 5 times, then puts into preform machine shaping, becomes sizing material; After metallic framework is cleaned up, dry; Again metallic framework is immersed tackiness agent, levelling 5 minutes under the condition of 80 DEG C, then Procuring 10 minutes under the condition of 160 DEG C; Sizing material is fed rubber injection machine, starts through plasticizing, injection, cold runner, then sulfuration, plasticization temperature, injection adopts the injection of multiple note mouth, and note mouth adopts floating note mouth, injection barrel temperature, cold runner temperature control at 60 DEG C, and mold cure temperature controls at 160 DEG C; The gasket seal of sulfidization molding is put into baking oven and carries out post vulcanization, post vulcanization temperature is 180 DEG C, 6 hours time.
Embodiment 3, by high Mooney fluororubber 26 01 50Kg of bis-phenol sulfuration, low Mooney fluororubber 2605 50Kg of bis-phenol sulfuration, puts into open type rubber mixing machine and plasticates 3 times, add carbon black N660 20Kg again, zinc oxide 2Kg, bisphenol AF 1Kg, BPP 1Kg, after mixing, thin-pass 5 times, then puts into preform machine shaping, becomes sizing material; After metallic framework is cleaned up, dry; Again metallic framework is immersed tackiness agent, levelling 5 minutes under the condition of 80 DEG C, then Procuring 10 minutes under the condition of 160 DEG C; Sizing material is fed rubber injection machine, and start through plasticizing, injection, cold runner, then sulfuration, plasticization temperature, injection barrel temperature, cold runner temperature control at 90 DEG C, and mold cure temperature controls at 200 DEG C; The gasket seal of sulfidization molding is put into baking oven and carries out post vulcanization, post vulcanization temperature is 200 DEG C, 10 hours time.
Claims (7)
1. a gasket seal, is characterized in that, adopts injection system to make, high Mooney crude fluororubber 50 parts, low Mooney fluororubber rubber 50 parts, carbon black 20-40 part, acid-acceptor 2-8 part, vulcanizing agent 1-2 part by the raw material of following weight proportioning; Described rubber is selected from the viton of peroxide cure.
2. a kind of gasket seal according to claim 1, is characterized in that, described carbon black is N990 or N660.
3. a kind of gasket seal according to claim 1, is characterized in that, described acid-acceptor is one or both mixing in zinc oxide, magnesium oxide, calcium hydroxide.
4. a kind of gasket seal according to claim 1, is characterized in that, described vulcanizing agent is bisphenol AF.
5. the preparation method of arbitrary gasket seal of claim 1-4, is characterized in that adopting the mould injection system of band cold runner to be processed into gasket seal, comprises following processing step:
A, by high Mooney viton part, low Mooney fluororubber part, puts into open type rubber mixing machine and plasticates 3 times, then add carbon black part, acid-acceptor part, vulcanizing agent part, and after mixing, thin-pass 5 times, then puts into preform machine shaping, becomes sizing material;
B, metallic framework cleaning by degreasing is clean after, dry;
C, metallic framework is immersed tackiness agent, levelling 5 minutes under the condition of 80 DEG C, then Procuring 10 minutes under the condition of 160 DEG C;
D, sizing material is fed rubber injection machine, start through plasticizing, injection, cold runner, then sulfuration, plasticization temperature, injection barrel temperature, cold runner temperature control at 60-90 DEG C, and mold cure temperature controls at 160-200 DEG C;
E, the gasket seal of sulfidization molding is put into baking oven carry out post vulcanization, post vulcanization temperature is 180-200 DEG C, time 6-10 hour.
6. the preparation method of gasket seal according to claim 5, is characterized in that described injection adopts multiple note mouth to inject, and note mouth adopts spring loaded note mouth or floating note mouth.
7. realize the particular manufacturing craft of the method for claim 5 or 6, it is characterized in that, described mould comprises die body (1), and (1) is with cold runner to die body, die body (1) has gum-injecting port (2), one-level air discharge duct (3) and secondary exhaust groove (4), die body (1) adopts multi-region temperature control method; Described one-level air discharge duct (3) degree of depth 0.075mm-0.1mm, adds air discharge duct after one-level air discharge duct (3) and is deep to 0.5mm, be secondary exhaust groove (4).
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| CN201310421820.3A CN103450606B (en) | 2013-09-17 | 2013-09-17 | A kind of gasket seal its preparation method and particular manufacturing craft thereof |
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| CN105014355B (en) * | 2015-07-23 | 2017-04-05 | 烟台石川密封垫板有限公司 | A kind of Turntable type automobile gasket seal automatic assembly equipment |
| CN108948600A (en) * | 2018-08-01 | 2018-12-07 | 扬中市橡胶塑料厂有限公司 | A kind of dedicated fluororubber O-type ring of all-welded ball valve and its processing technology |
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| JP3525456B2 (en) * | 1993-06-30 | 2004-05-10 | Ｎｏｋ株式会社 | Fluororubber coated gasket material |
| CN101333324B (en) * | 2008-07-27 | 2011-06-15 | 青岛茂林橡胶制品有限公司 | Rubber compositions for oil seal of rubber framework and method for manufacturing same |
| CN101838430B (en) * | 2010-05-28 | 2011-12-07 | 仝国磊 | Fluoride rubber and plastic sealing material and preparation method thereof |
| CN102276946B (en) * | 2011-07-13 | 2013-07-24 | 成都晨光博达橡塑有限公司 | Fluororubber premix rubber with low compression set and preparation method thereof |
| CN102604272A (en) * | 2012-02-28 | 2012-07-25 | 长沙市佳一密封件有限公司 | Fluororubber composite material for manufacturing sealing element and preparative technology |
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Owner name: SHICHUAN SEAL GASKET CO., LTD., YANTAI CITY Free format text: FORMER OWNER: YANTAI QUANFENG SEALING TECHNOLOGY CO., LTD. Effective date: 20150831 |
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Effective date of registration: 20150831 Address after: 264000 Shandong Province, Yantai city Zhifu District moon Road 5 Applicant after: YANTAI ISHIKAWA GASKET CO., LTD. Address before: 264002 Shandong Province, Yantai city Zhifu District moon Road No. 80 Applicant before: Yantai Quanfeng Sealing Technology Co., Ltd. |
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Address after: 264000 Shandong Province, Yantai city Zhifu District moon Road 5 Patentee after: Yantai Ishikawa Sealing Technology Co., Ltd. Address before: 264000 Shandong Province, Yantai city Zhifu District moon Road 5 Patentee before: YANTAI ISHIKAWA GASKET CO., LTD. |