CN104893117A - Production technology of low-hardness rubber sealing elements for automobile shock absorbers - Google Patents
Production technology of low-hardness rubber sealing elements for automobile shock absorbers Download PDFInfo
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- CN104893117A CN104893117A CN201510234999.0A CN201510234999A CN104893117A CN 104893117 A CN104893117 A CN 104893117A CN 201510234999 A CN201510234999 A CN 201510234999A CN 104893117 A CN104893117 A CN 104893117A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a production technology of low-hardness rubber sealing elements for automobile shock absorbers. The production technology comprises the following steps: preparing materials, performing first-stage rubber mixing, performing second-stage rubber mixing, performing detection and performing mold pressing and shaping. Through the manner, according to the production technology of the low-hardness rubber sealing elements for the automobile shock absorbers, disclosed by the invention, adopted crude rubber does not need to be fed with oil, the hardness of the obtained rubber sealing elements is under 30HA, wax is not sprayed on products, the rubber sealing elements are suitable for high temperature vulcanization, brittle fracture cannot occur, demolding is easy, and the production efficiency is high.
Description
Technical field
The present invention relates to automobile absorber rubber seal field, particularly relate to a kind of production technique of automobile absorber low-hardness rubber sealing member.
Background technology
Have outstanding elastic macromolecular material because rubber is one, wide temperature range, in different media, give less stress will produce larger distortion, this distortion can provide contact pressure, compensates leakage-gap, reaches the object of sealing.
Rubber seal is the class general basic element in tightness system, in leakage with seal in this conflict and play the part of very important role.Along with the development of science and technology, the characteristic of various product innovation to sealing member proposes new requirement, and particularly the solid rubber part of partial automobile vibroshock product needed soft (lower than 30HA) reaches seal request.In rubber parts production process, the product surface of soft solid rubber part easily has bubble, breakseal structure, and is not suitable for raised temperature and carries out sulfuration, and product is crisp, not easily the demoulding.
Summary of the invention
The technical problem that the present invention mainly solves is to provide and is a kind ofly applicable to rubber seal production technique that is high temperature vulcanized, the easily demoulding, obtains low-hardness rubber sealing member.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the production technique providing a kind of automobile absorber low-hardness rubber sealing member, comprises the following steps:
Get the raw materials ready: prepare mixing rubber, carbon black, paraffin oil, fine particle calcium carbonate, talcum powder, processing aid, vulcanizing agent and promotor according to the production program, described processing aid comprises zinc oxide, stearic acid, WS resin, PE wax and polyoxyethylene glycol;
First stage compounding rubber: add rubber and plasticate in Banbury mixer, adding carbon black after plasticating 3 minutes carries out mixing, rubber and carbon black evenly mixing, paraffin oil is put into again after 5 minutes, add after paraffin oil carries out banburying in 5 minutes and add fine particle calcium carbonate and talcum powder again, add processing aid after Banbury mixer current stabilization again to continue mixing 30 minutes, from Banbury mixer binder removal during Banbury mixer temperature 85 ~ 90 DEG C, obtain rubber unvulcanizate, first stage, the mixing rubber unvulcanizate obtained did not park 12 hours higher than in the storing room of 60% in temperature 25 DEG C, humidity, waited for subordinate phase compounding rubber;
Subordinate phase compounding rubber: it is mixing that subordinate phase uses vulcanizing agent and promotor and the first stage mixing rubber unvulcanizate obtained to carry out adding sulphur, fill with same sack after vulcanizing agent and promotor weigh, add in mill simultaneously, there will not be incipient scorch, promotor comprises accelerant B Z, promotor PZ, captax, altax, TM monex TM, Vulcanization accelerator TMTD, vulkacit D PTT and promotor ETU, vulcanizing agent is S-80 vulcanizing agent, mill mixing process plays three triangle bags, three thin-passes, obtain adding sulphur rubber unvulcanizate, carry out the derivation adding sulphur rubber unvulcanizate afterwards, mill is derived and is added sulphur rubber unvulcanizate at least 25 minutes, weight at least 200 kilograms,
Detect: lead glue complete after the sulphur rubber unvulcanizate that adds detect on vulkameter, under the condition of temperature 180 DEG C, the most high-sulfurized torque adding sulphur rubber unvulcanizate must not higher than 0.4Nm, and qualified to add sulphur rubber unvulcanizate not to be used higher than to park in the storing room of 60% etc. in temperature 25 DEG C, humidity;
Compression molding: importing forming mould adding sulphur rubber unvulcanizate, being cured shaping by forming mould heating, forming mould temperature 195 ~ 200 DEG C, curing time 180 ~ 200 seconds, sulfide stress 12Mpa, obtain the rubber sponge sealing-ring of high leakproofness, sulfide stress can not be crossed higher than 14MPa;
The mass parts of the various raw materials used in above-mentioned steps is as follows:
Rubber 100 parts, carbon black 20 ~ 30 parts, paraffin oil 125 ~ 130 parts, fine particle calcium carbonate 30 ~ 40 parts, talcum powder 5 ~ 10 parts, 3 parts, zinc oxide, stearic acid 0.5 part, WS resin 1 ~ 1.2 part, 1 ~ 2 part, PE wax, polyoxyethylene glycol 1.8 ~ 2 parts, vulcanizing agent 0.5 ~ 1 part, accelerant B Z1.5 ~ 2 part, promotor PZ0.2 ~ 0.5 part, captax 1.5 ~ 2 parts, altax 0.8 ~ 1 part, TM monex TM 0.5 ~ 0.8 part, Vulcanization accelerator TMTD 0.8 ~ 1 part, vulkacit D PTT1 ~ 2 part and promotor ETU 1 ~ 1.5 part.
In a preferred embodiment of the present invention, described rubber is EPDM rubber.
In a preferred embodiment of the present invention, described carbon black is N774 carbon black.
The invention has the beneficial effects as follows: the production technique of a kind of automobile absorber low-hardness rubber sealing member that the present invention points out, rubber does not use oil-filled rubber, the rubber seal hardness obtained is lower than 30 HA, product is wax spray not, be applicable to high temperature vulcanized, and embrittlement can not occur, the easy demoulding, the efficiency of production is high.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention comprises:
Embodiment 1: a kind of production technique of automobile absorber low-hardness rubber sealing member, comprises the following steps:
Get the raw materials ready: prepare mixing rubber, carbon black, paraffin oil, fine particle calcium carbonate, talcum powder, processing aid, vulcanizing agent and promotor according to the production program according to weight, described processing aid comprises zinc oxide, stearic acid, WS resin, PE wax and polyoxyethylene glycol;
First stage compounding rubber: add 100 kilograms of rubbers and plasticate in Banbury mixer, described rubber is EPDM rubber, adding 20 kilograms of carbon blacks after plasticating 3 minutes carries out mixing, described carbon black is N774 carbon black, rubber and carbon black evenly mixing, 125 kilograms of paraffin oils are put into again after 5 minutes, order can not be put upside down, otherwise because the amount of oil is large, heat up slow, carbon black dispersion is uneven, add after paraffin oil carries out banburying in 5 minutes and add 30 kilograms of fine particle calcium carbonates and 5 kilograms of talcum powder again, add processing aid after Banbury mixer current stabilization again to continue mixing 30 minutes, processing aid comprises 3 kilograms, zinc oxide, stearic acid 0.5 kilogram, WS resin 1 kilogram, 1 kilogram, PE wax, polyoxyethylene glycol 1.8 kilograms, from Banbury mixer binder removal during Banbury mixer temperature 85 DEG C, obtain rubber unvulcanizate, first stage, the mixing rubber unvulcanizate obtained was temperature 25 DEG C, humidity does not park 12 hours higher than in the storing room of 60%, wait for subordinate phase compounding rubber,
Subordinate phase compounding rubber: it is mixing that subordinate phase uses vulcanizing agent and promotor and the first stage mixing rubber unvulcanizate obtained to carry out adding sulphur, fill with same sack after vulcanizing agent and promotor weigh, add in mill simultaneously, there will not be incipient scorch, promotor comprises 1.5 kilograms of accelerant B Z, 0.2 kilogram of promotor PZ, 1.5 kilograms of captaxs, 0.8 kilogram of altax, 0.5 kilogram of TM monex TM, 0.8 kilogram of Vulcanization accelerator TMTD, 1 kilogram of vulkacit D PTT and 1 kilogram of promotor ETU, vulcanizing agent is the S-80 vulcanizing agent of 0.5 kilogram, mill mixing process plays three triangle bags, three thin-passes, obtain adding sulphur rubber unvulcanizate, carry out the derivation adding sulphur rubber unvulcanizate afterwards, mill is derived and is added sulphur rubber unvulcanizate at least 25 minutes,
Detect: lead glue complete after the sulphur rubber unvulcanizate that adds detect on vulkameter, under the condition of temperature 180 DEG C, the most high-sulfurized torque adding sulphur rubber unvulcanizate must not higher than 0.4Nm, and qualified to add sulphur rubber unvulcanizate not to be used higher than to park in the storing room of 60% etc. in temperature 25 DEG C, humidity;
Compression molding: import forming mould adding sulphur rubber unvulcanizate, be cured shaping by forming mould heating, forming mould temperature 195 DEG C, curing time 180 seconds, sulfide stress 12Mpa, obtain the rubber sponge sealing-ring of high leakproofness, sulfide stress can not be crossed higher than 14MPa, otherwise occurs burning limit situation.
Embodiment 2: a kind of production technique of automobile absorber low-hardness rubber sealing member, comprises the following steps:
Get the raw materials ready: prepare mixing rubber, carbon black, paraffin oil, fine particle calcium carbonate, talcum powder, processing aid, vulcanizing agent and promotor according to the production program according to weight, described processing aid comprises zinc oxide, stearic acid, WS resin, PE wax and polyoxyethylene glycol;
First stage compounding rubber: add 100 kilograms of rubbers and plasticate in Banbury mixer, described rubber is EPDM rubber, adding 30 kilograms of carbon blacks after plasticating 3 minutes carries out mixing, described carbon black is N774 carbon black, rubber and carbon black evenly mixing, 130 kilograms of paraffin oils are put into again after 5 minutes, order can not be put upside down, otherwise because the amount of oil is large, heat up slow, carbon black dispersion is uneven, add after paraffin oil carries out banburying in 5 minutes and add 40 kilograms of fine particle calcium carbonates and 10 kilograms of talcum powder again, add processing aid after Banbury mixer current stabilization again to continue mixing 30 minutes, processing aid comprises 3 kilograms, zinc oxide, stearic acid 0.5 kilogram, WS resin 1 kilogram, 2 kilograms, PE wax, polyoxyethylene glycol 2 kilograms, from Banbury mixer binder removal during Banbury mixer temperature 90 DEG C, obtain rubber unvulcanizate, first stage, the mixing rubber unvulcanizate obtained was temperature 25 DEG C, humidity does not park 12 hours higher than in the storing room of 60%, wait for subordinate phase compounding rubber,
Subordinate phase compounding rubber: it is mixing that subordinate phase uses vulcanizing agent and promotor and the first stage mixing rubber unvulcanizate obtained to carry out adding sulphur, fill with same sack after vulcanizing agent and promotor weigh, add in mill simultaneously, there will not be incipient scorch, promotor comprises 2 kilograms of accelerant B Z, 0.5 kilogram of promotor PZ, 2 kilograms of captaxs, 1 kilogram of altax, 0.8 kilogram of TM monex TM, 1 kilogram of Vulcanization accelerator TMTD, 2 kilograms of vulkacit D PTT and 1.5 kilogram of promotor ETU, vulcanizing agent is the S-80 vulcanizing agent of 1 kilogram, mill mixing process plays three triangle bags, three thin-passes, obtain adding sulphur rubber unvulcanizate, carry out the derivation adding sulphur rubber unvulcanizate afterwards, mill is derived and is added sulphur rubber unvulcanizate at least 25 minutes,
Detect: lead glue complete after the sulphur rubber unvulcanizate that adds detect on vulkameter, under the condition of temperature 180 DEG C, the most high-sulfurized torque adding sulphur rubber unvulcanizate must not higher than 0.4Nm, and qualified to add sulphur rubber unvulcanizate not to be used higher than to park in the storing room of 60% etc. in temperature 25 DEG C, humidity;
Compression molding: import forming mould adding sulphur rubber unvulcanizate, be cured shaping by forming mould heating, forming mould temperature 200 DEG C, curing time 200 seconds, sulfide stress 12Mpa, obtain the rubber sponge sealing-ring of high leakproofness, sulfide stress can not be crossed higher than 14MPa, otherwise occurs burning limit situation.
In sum, the production technique of a kind of automobile absorber low-hardness rubber sealing member that the present invention points out, rubber is EPDM rubber, not oil-filled, and the rubber seal hardness obtained is lower than 30 HA, product is wax spray not, be applicable to high temperature vulcanized, and embrittlement can not occur, the easy demoulding in process, the efficiency of producing is high, easy and simple to handle.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. an automobile absorber production technique for low-hardness rubber sealing member, is characterized in that, comprise the following steps:
Get the raw materials ready: prepare mixing rubber, carbon black, paraffin oil, fine particle calcium carbonate, talcum powder, processing aid, vulcanizing agent and promotor according to the production program, described processing aid comprises zinc oxide, stearic acid, WS resin, PE wax and polyoxyethylene glycol;
First stage compounding rubber: add rubber and plasticate in Banbury mixer, adding carbon black after plasticating 3 minutes carries out mixing, rubber and carbon black evenly mixing, paraffin oil is put into again after 5 minutes, add after paraffin oil carries out banburying in 5 minutes and add fine particle calcium carbonate and talcum powder again, add processing aid after Banbury mixer current stabilization again to continue mixing 30 minutes, from Banbury mixer binder removal during Banbury mixer temperature 85 ~ 90 DEG C, obtain rubber unvulcanizate, first stage, the mixing rubber unvulcanizate obtained did not park 12 hours higher than in the storing room of 60% in temperature 25 DEG C, humidity, waited for subordinate phase compounding rubber;
Subordinate phase compounding rubber: it is mixing that subordinate phase uses vulcanizing agent and promotor and the first stage mixing rubber unvulcanizate obtained to carry out adding sulphur, fill with same sack after vulcanizing agent and promotor weigh, add in mill simultaneously, there will not be incipient scorch, promotor comprises accelerant B Z, promotor PZ, captax, altax, TM monex TM, Vulcanization accelerator TMTD, vulkacit D PTT and promotor ETU, vulcanizing agent is S-80 vulcanizing agent, mill mixing process plays three triangle bags, three thin-passes, obtain adding sulphur rubber unvulcanizate, carry out the derivation adding sulphur rubber unvulcanizate afterwards, mill is derived and is added sulphur rubber unvulcanizate at least 25 minutes, weight at least 200 kilograms,
Detect: lead glue complete after the sulphur rubber unvulcanizate that adds detect on vulkameter, under the condition of temperature 180 DEG C, the most high-sulfurized torque adding sulphur rubber unvulcanizate must not higher than 0.4Nm, and qualified to add sulphur rubber unvulcanizate not to be used higher than to park in the storing room of 60% etc. in temperature 25 DEG C, humidity;
Compression molding: importing forming mould adding sulphur rubber unvulcanizate, being cured shaping by forming mould heating, forming mould temperature 195 ~ 200 DEG C, curing time 180 ~ 200 seconds, sulfide stress 12Mpa, obtain the rubber sponge sealing-ring of high leakproofness, sulfide stress can not be crossed higher than 14MPa;
The mass parts of the various raw materials used in above-mentioned steps is as follows:
Rubber 100 parts, carbon black 20 ~ 30 parts, paraffin oil 125 ~ 130 parts, fine particle calcium carbonate 30 ~ 40 parts, talcum powder 5 ~ 10 parts, 3 parts, zinc oxide, stearic acid 0.5 part, WS resin 1 ~ 1.2 part, 1 ~ 2 part, PE wax, polyoxyethylene glycol 1.8 ~ 2 parts, vulcanizing agent 0.5 ~ 1 part, accelerant B Z1.5 ~ 2 part, promotor PZ0.2 ~ 0.5 part, captax 1.5 ~ 2 parts, altax 0.8 ~ 1 part, TM monex TM 0.5 ~ 0.8 part, Vulcanization accelerator TMTD 0.8 ~ 1 part, vulkacit D PTT1 ~ 2 part and promotor ETU 1 ~ 1.5 part.
2. the production technique of automobile absorber low-hardness rubber sealing member according to claim 1, is characterized in that, described rubber is EPDM rubber.
3. the production technique of automobile absorber low-hardness rubber sealing member according to claim 1, is characterized in that, described carbon black is N774 carbon black.
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| CN201510234999.0A CN104893117A (en) | 2015-05-11 | 2015-05-11 | Production technology of low-hardness rubber sealing elements for automobile shock absorbers |
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| CN201510234999.0A CN104893117A (en) | 2015-05-11 | 2015-05-11 | Production technology of low-hardness rubber sealing elements for automobile shock absorbers |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106378890A (en) * | 2015-08-02 | 2017-02-08 | 上海优宝橡塑制品有限公司 | Preparation method of rubber sealing component for car |
| CN106738414A (en) * | 2017-01-10 | 2017-05-31 | 青岛科技大学 | A kind of floating weight of banbury mixer rubber aids in damping device |
| CN108486707A (en) * | 2018-03-17 | 2018-09-04 | 江阴市东杰纺机专件有限公司 | A kind of split type compact spinning roller and its processing technology |
| CN112375306A (en) * | 2020-11-27 | 2021-02-19 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Rubber material for sealing rubber strip |
| CN113232186A (en) * | 2021-05-10 | 2021-08-10 | 株洲时代新材料科技股份有限公司 | Rubber mixing process system and method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106378890A (en) * | 2015-08-02 | 2017-02-08 | 上海优宝橡塑制品有限公司 | Preparation method of rubber sealing component for car |
| CN106738414A (en) * | 2017-01-10 | 2017-05-31 | 青岛科技大学 | A kind of floating weight of banbury mixer rubber aids in damping device |
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| CN108486707A (en) * | 2018-03-17 | 2018-09-04 | 江阴市东杰纺机专件有限公司 | A kind of split type compact spinning roller and its processing technology |
| CN108486707B (en) * | 2018-03-17 | 2021-11-09 | 江阴市东杰纺机专件有限公司 | Split type compact spinning roller and processing technology thereof |
| CN112375306A (en) * | 2020-11-27 | 2021-02-19 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Rubber material for sealing rubber strip |
| CN113232186A (en) * | 2021-05-10 | 2021-08-10 | 株洲时代新材料科技股份有限公司 | Rubber mixing process system and method |
| CN113232186B (en) * | 2021-05-10 | 2022-05-24 | 株洲时代新材料科技股份有限公司 | Rubber mixing process system and method |
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Application publication date: 20150909 |