CN103194155B - Glass guide groove sealing strip of automotive sizing material and uses thereof - Google Patents
Glass guide groove sealing strip of automotive sizing material and uses thereof Download PDFInfo
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- CN103194155B CN103194155B CN201310153655.8A CN201310153655A CN103194155B CN 103194155 B CN103194155 B CN 103194155B CN 201310153655 A CN201310153655 A CN 201310153655A CN 103194155 B CN103194155 B CN 103194155B
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Abstract
The invention discloses a kind of glass guide groove sealing strip of automotive sizing material and uses thereof, this sizing material adopts high Mooney viscosity, low ethylene content rubber is main body, add a large amount of high structured packings and high flash point paraffin oil, and be equipped with the SE curing system of sulfur cross-linking, the heat shrinkability of sealed strip material is controlled within 1%; The Typical physical performance of sealing bar meets the performance requriements of glass guide groove sealing strip of automotive to material, and then realize saving secondary baking step required in existing sealed strip following process, make to save the energy, stop the waste caused because of bad the scrapping of generation of size.Sizing material of the present invention is used for the preparation of glass guide groove sealing strip of automotive, is applied to further on arrangements for automotive doors and automobile.
Description
Technical field
The invention belongs to field of rubber technology, be specifically related to a kind of glass guide groove sealing strip of automotive sizing material and uses thereof.
Background technology
Automobile door glass guiding groove is requisite building block in automobile window glass and jacking system thereof, it is arranged on the slip track of automobile door glass lifting, support is risen to glass, guiding, damping and shock absorption, because of the otherness of car door panel beating different sites structure, cause automobile door glass guiding groove different section material structure changeable, need to use joint packing bar sizing material to be bondd by different section material, and the wear resistance on its surface directly affects the stationarity of lifting glass for vehicle window, in order to improve wear resistance, spray-on coating process can be carried out to the corner surface after joint.
In prior art, the production technique of automobile door glass guiding groove comprises: extrude → sulfuration → spraying → solidification → cooling → slightly cut out → park → secondary baking → park → essence spraying → angle, sanction → joint → bight is sprayed and is solidified → park → inspection → packaging.Product must carry out angle spray solidification, to ensure coating rapid drying, solidification according to corresponding processing condition after carrying out bight spraying.But rubber material is heated in the process of solidification, can produce shrinking effect, finally cause the final dimension of sealed strip to shorten simultaneously, cause two sealed strip materials connect between angle cannot meet car load assembling because size is too short, thus generation is scrapped in a large number.In order to overcome the contraction problem that rubber material occurs after the spray solidification of angle, adopting in prior art and extruding material after parking, secondary baking is carried out to it, solidifying to make sealed strip material size.And then carry out the later stage operations such as essence sanction, joint, bight spraying and solidification.But need in aforesaid method repeatedly to carry out sulfuration to sealed strip material, namely can cause the sulfuration of sealed strip in secondary baking process, this process very easily causes the overvulcanize of sealed strip, causes the performance of sealed strip sharply to decline.Meanwhile, the space of increase the energy consumption of secondary baking and the turnover of sealed strip material, parking.
Rubber, as a kind of viscoelastic material, itself has viscosity and elasticity two kinds of performances concurrently.In extrusion process, when sealed strip sizing material flow in the head of forcing machine, screw rod thrust flows by action to mouth gold, the rubbing effect of head mouth gold internal surface and sealed strip sizing material is flowed with very large resistance to sealed strip sizing material, sealed strip sizing material is made to create distortion when mouth gold is extruded, this is out of shape existing viscous deformation flexible distortion again, that is the rubber leaving mouth gold also exists the internal stress because recoverable deformation causes, and certainly exists stress relaxation phenomenon.Meanwhile, in order to make rubber obtain sulfuration, need to use tractor to draw in truck for vulcanlzing pan by rubber, the linear velocity of tractor is faster than forcing machine extruded velocity, and such longitudinal stretching distortion also can cause recoverable deformation, also must there is stress relaxation phenomenon.And stress relaxation needs a process, if do not have external influence, this process can continue several days even for more time.If so do not control this stress relaxation phenomenon, when after rubber cut-to-length, this stress relaxation process does not still terminate, still can proceed, cause the shortening of the length in following process process of the rubber after cut-to-length, affect the final dimension of sealed strip, cause two sealed strip materials connect between angle cannot meet car load assembling because size is too short, thus generation is scrapped in a large number.
Why after the spray solidification of angle, there is contraction problem in existing automobile door glass guiding groove, its basic reason is the closely knit glue formula in straight line position, although meet Typical physical performance requriements, but shrinking percentage average out to 2.54%, in actual production, need to adopt the method for secondary baking to accelerate contraction process to rubber material, avoid the sealed strip material dimensional change after the spray solidification of angle, cause product rejection.Wherein, in die cavity, take out the per-cent of difference with rubber item specified size of the cavity dimension being cooled to the size of normal temperature corresponding with goods after sealed strip sizing material shrinking percentage refers to rubber item sulfuration.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of glass guide groove sealing strip of automotive sizing material and uses thereof, employing high Mooney viscosity, low ethylene content rubber are main body, add a large amount of high structured packings and high flash point paraffin oil, and be equipped with the SE curing system of sulfur cross-linking, the heat shrinkability of sealed strip material is controlled within 1%; The Typical physical performance of this sizing material meets the performance requriements of automobile door glass guiding groove to material, and then can cancel adhesive tape secondary baking operation required in following process, therefore can save the energy, stop existing sizing material scrapping because of the bad generation of size.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of glass guide groove sealing strip of automotive sizing material, count it by weight and comprise following composition:
Terpolymer EP rubber K8550 60 ~ 90 parts, terpolymer EP rubber K4869 20 ~ 80 parts,
Active zinc flower 8 ~ 15 parts, stearic acid 2 parts,
Dispersion agent L-24 2 ~ 5 parts, polyoxyethylene glycol 2 ~ 5 parts,
FEF level carbon black N550 60 ~ 160 parts, SRF level carbon black N774 60 ~ 160 parts,
Light calcium carbonate 20 ~ 80 parts, active strengthening agent Great-E1 20 ~ 80 parts,
Paraffin oil R-2291 50 ~ 80 parts, moisture adsorbent 8 ~ 15 parts,
Scorch retarder 0.2 ~ 0.8 part, 0.5 ~ 2.0 part, sulphur,
Promotor 3 ~ 6 parts.
Limit as one of the present invention, described promotor comprises accelerant B Z, altax, Vulcanization accelerator TMTD, promotor TRA and vulkacit D TDM-80; Wherein,
Accelerant B Z 1.0 ~ 2.0 parts, altax 0.5 ~ 1.5 part, Vulcanization accelerator TMTD 0.1 ~ 0.8 part,
Promotor TRA 0.1 ~ 0.8 part, vulkacit D TDM-80 0.5 ~ 1.5 part.
The present invention passes through to reduce sealed strip sizing material from rubber, filler, paraffin oil and vulcanization system aspect when baking, sealed strip sizing material is inner because of stress elastic deformation occurring and be cross-linked and produce, in sealed strip sizing material process of cooling, stress is tending towards eliminating, reduce stress relaxation process phenomena, the linear dimension of goods is shunk reduce, makes a concrete analysis of as follows:
1) rubber
Terpolymer EP rubber is the elastocopolymer of monomer polymerization based on ethene, propylene, and therefore in multipolymer, the proportion of composing of ethene, propylene and composition distribution play conclusive effect to the processing characteristics of terpolymer EP rubber and physicals.In general, the rubber trade mark that ethylene content is higher, more can give goods better physicals, and can improve the resistance toheat of goods, and sealed strip sizing material, when thermal ageing, also can keep higher physicals; But, along with the raising of ethylene content, goods thermo-sensitivity can be made to increase, both more responsive to the change of temperature, especially when ethylene content is more than 65%, the tendency of its crystallinity, particularly low temperature crystallization can be quite obvious, causes the sealed strip material stress relaxation using the terpolymer EP rubber of high ethylene content to prepare to be subject to envrionment temperature more serious like this.
Therefore, the present invention is when selecting rubber label, the terpolymer EP rubber K8550 and the terpolymer EP rubber K4869 that have selected low ethylene content carry out and use, compared with the rubber trade mark of traditional low mooney viscosity, high ethylene content or filled polyethylene, namely the contraction of the increase of ethylene content or poly existence aggravation sealed strip material is avoided, also can increase the loading level of filler and oil plant, and then reduce the stress relaxation process of sealed strip material.
2) filler
Reinforced filling is used for, in the middle of rubber, can not only improving the intensity of rubber item, and improving the processing characteristics of sealed strip sizing material, and give goods good physicals, can extend the work-ing life of goods.Dis-reinforcing filler is used in the middle of rubber, and main rising fills compatibilization, and some kind also has isolation, the demoulding or painted effect concurrently.Rubber is shunk, is ensureing, under the constant prerequisite of hardness, by improving the consumption of filler, alleviating or eliminating rubber macromolecule chain network, in the course of processing, be extruded distortion, distortion, the recoverable deformation phenomenon that is wound.
Therefore the present invention selects when selecting carbon black based on the carbon black N774 of high structure, LR low reinforcing half reinforcement, and coordinate the fast intensity extruding carbon black N550 guarantee goods, simultaneously, on the basis ensureing physicals, a large amount of white filler light calcium carbonates and active strengthening agent Great-E1 is used in formula, the use of above filler extrudes compared with carbon black N550 and white filler light calcium carbonate with using merely in current art soon, more can reduce the shrinking percentage of rubber.
3) paraffin oil
The low molecule volatile matter existed in sealed strip sizing material is wrapped in cross-linked rubber, in sulfidation, macromolecular chain is extruded distortion, distortion, is wrapped in cross-linked rubber, now along with the rising of temperature, low molecular compound vapors away gradually, be extruded the macromolecular chain generation elastic memory of distortion, distortion, winding, restore to the original state gradually, vulcanized article internal structure is readjusted.When outside temperature constantly raises, or during time lengthening, above-mentioned adjustment degree is more and more abundant.
Therefore the present invention selects high flash point paraffin oil R-2291 (its flash-point is 261 DEG C) when selecting paraffin oil, flash-point improves about 50 DEG C compared with the paraffin oil (its flash-point is 210 DEG C) of existing use, in current expressing technique, the volatilization of lower-molecular substance is reduced under the curing temperature used is up to the condition of 250 DEG C, and then the process of the recovery of elasticity of minimizing sealed strip material.
4) vulcanization system
Enough cross-linking densities can form suitable cross-linked network structure, effectively can control the stress relaxation that rubber causes because of recoverable deformation like this.Therefore the present invention's employing when selecting vulcanization system is vulcanizing agent with sulphur and is equipped with sulfur-donor vulkacit D TDM-80, Vulcanization accelerator TMTD and promotor TRA, is aided with the SE curing system of accelerant B Z, altax simultaneously; Compared with current art, the use of sulphur and sulfur-donor promotor, provides the cross-linking density that rubber is enough, the space of network structure by compression, namely ensure enough time of scorch and sulfurizing time, the stress relaxation that rubber causes because of recoverable deformation can be reduced again, shrinking percentage is reduced.
In sum, the present invention is by adopting terpolymer EP rubber K8550(60 ~ 90 part of low ethylene content) with terpolymer EP rubber K4869(20 ~ 80 part) both carry out and with being main body, add high structure, LR low reinforcing semi-reinforcing hydrocarbon black N774(60 ~ 160 part) be main reinforced filling, and coordinate fast extrude carbon black N550(60 ~ 160 part) ensure the intensity of goods, simultaneously, on the basis ensureing physicals, in formula, use a large amount of white filler light calcium carbonates (20 ~ 80 parts) and active strengthening agent Great-E1(20 ~ 80 part).Adopt with sulphur (0.5 ~ 2 part) for vulcanizing agent and be equipped with sulfur-donor vulkacit D TDM-80(0.5 ~ 1.5 part), Vulcanization accelerator TMTD (0.1 ~ 0.8 part) and promotor TRA(0.1 ~ 0.8 part), be aided with accelerant B Z(1.0 ~ 2.0 part simultaneously), the SE curing system of altax (0.5 ~ 1.5 part), the heat shrinkability of sealed strip material is controlled about 0.7%.
Present invention also offers a kind of purposes of above-mentioned glass guide groove sealing strip of automotive sizing material, it is for processing automobile door glass guide groove sealing strip.
Limit as one of the present invention, the method that above-mentioned glass guide groove sealing strip of automotive sizing material is used for processing automobile door glass guide groove sealing strip is carried out according to following steps order:
Extrude → sulfuration → spraying → solidification → cooling → slightly cut out → park → essence spraying → angle, sanction → joint → bight is sprayed and is solidified → park → inspection → packaging.
As the further restriction of above-mentioned restriction, described extrusion step is carried out according to following steps order:
Feeding → extrude → microwave vulcanization → tri-section hot-air vulcanization → cooling → stamp → the first traction → surface treatment → spraying → warm air solidification → cooling → air-dry → second traction → severing → collect → put in storage.
As the further restriction of above-mentioned restriction, the microwave vulcanization temperature of described microwave vulcanization step is 245 ~ 255 DEG C;
In three sections of described hot-air vulcanization steps, temperature is respectively: first paragraph hot-air vulcanization temperature is 245 ~ 255 DEG C, and second segment hot-air vulcanization temperature is 230 ~ 250 DEG C, and the 3rd section of hot-air vulcanization temperature is 230 ~ 250 DEG C;
The pulling speed of the first traction is 5.9 ~ 6.1m/min;
The pulling speed of the second traction is 6.3 ~ 6.5m/min.
The dimensional stability impact of above processing parameter on sealed strip is comparatively large, and under identical condition, the temperature of microwave vulcanization and these two stations of hot-air vulcanization is higher, and the shrinking percentage of material is larger.
Meanwhile, need in extrusion to use belt traction machine, ensure the continuous prodution of sealed strip product, but its use can cause the stretching to sealed strip material, produce tensile stress, larger on sealed strip quality (dimensional stability) impact.
Owing to have employed above-mentioned technical scheme, compared with prior art, acquired technical progress is in the present invention:
Sizing material of the present invention adopts high Mooney viscosity, low ethylene content rubber is main body, adds a large amount of high structured packings and high flash point paraffin oil, and is equipped with the SE curing system of sulfur cross-linking, controlled within 1% by the heat shrinkability of sealed strip material.Simultaneously, the Typical physical performance of sealed strip can meet the performance requriements of automobile door glass guiding groove to material, and then realize reducing existing sizing material sealed strip secondary baking operation required in following process, so can the energy be saved, scrapping because of the bad generation of size can be stopped.
Sizing material of the present invention is applicable to the preparation of glass guide groove sealing strip of automotive, is applied to further on arrangements for automotive doors and automobile.
The present invention is described in further detail below in conjunction with specific embodiment.
Embodiment
embodiment 1
A kind of glass guide groove sealing strip of automotive sizing material, count its raw material by weight and comprise following composition:
Terpolymer EP rubber K8550 80 parts, terpolymer EP rubber K4869 40 parts,
Active zinc flower 10 parts, stearic acid 2 parts, dispersion agent L-24 3 parts, polyoxyethylene glycol 3 parts,
FEF level carbon black N550 110 parts, SRF level carbon black N774 70 parts, light calcium carbonate 50 parts,
Active strengthening agent Great-E1 50 parts, paraffin oil R-2291 70 parts, moisture adsorbent 8 parts,
Scorch retarder 0.3 part, 1.45 parts, sulphur, accelerant B Z 1.5 parts, altax 0.8 part,
Vulcanization accelerator TMTD 0.4 part, promotor TRA 0.4 part, vulkacit D TDM-80 1.2 parts.
In the above-mentioned raw materials composition of this sizing material, to be undertaken by adopting the terpolymer EP rubber K8550 of low ethylene content and terpolymer EP rubber K4869 and with being main body, add high structure, LR low reinforcing semi-reinforcing hydrocarbon black N774 is main reinforced filling, and coordinate the fast intensity extruding carbon black N550 guarantee goods, simultaneously, on the basis ensureing physicals, in formula, use a large amount of white filler light calcium carbonates and active strengthening agent Great-E1.Employing is vulcanizing agent with sulphur and is equipped with sulfur-donor vulkacit D TDM-80, Vulcanization accelerator TMTD and promotor TRA, is aided with the SE curing system of accelerant B Z, altax simultaneously, controls the heat shrinkability of sealed strip material about 0.7%.
The above-mentioned glass guide groove sealing strip of automotive sizing material of the present embodiment is used to processing automobile door glazing tape, and working method is carried out according to following steps order:
Extrude → sulfuration → spraying → solidification → cooling → slightly cut out → park → essence spraying → angle, sanction → joint → bight is sprayed and is solidified → park → inspection → packaging.This working method compared with prior art, just eliminates and is originally located at thick sanction and adds the secondary baking after parking operation and add and park operation.
Expressing technique described in above-mentioned procedure of processing carries out according to following steps order:
Feeding → extrude → microwave vulcanization → tri-section hot-air vulcanization → cooling → stamp → the first traction → surface treatment → spraying → warm air solidification → cooling → air-dry → second traction → severing → collect → put in storage.
The technical parameter of above-mentioned extrusion step is as follows:
The microwave vulcanization temperature of described microwave vulcanization step is 245 DEG C;
In three sections of described hot-air vulcanization steps, temperature is respectively: first paragraph hot-air vulcanization temperature is 245 DEG C, and second segment hot-air vulcanization temperature is 230 DEG C, and the 3rd section of hot-air vulcanization temperature is 230 DEG C;
The pulling speed of the first traction is 5.9m/min;
The pulling speed of the second traction is 6.3m/min.
The dimensional stability impact of above processing parameter on sealed strip is comparatively large, and under identical condition, the temperature of microwave vulcanization and these two stations of hot-air vulcanization is higher, and the shrinking percentage of material is larger.
Meanwhile, need in extrusion to use belt traction machine, ensure the continuous prodution of sealed strip product, but its use can cause the stretching to sealed strip material, produce tensile stress, larger on the dimensional stability impact in sealed strip quality.
The present embodiment adopts the working method of sizing compound formula of the prior art and prior art (calling method 1 in the following text) respectively, adopts the working method (calling method 2 in the following text) of the glass guide groove sealing strip of automotive sizing material that provides of embodiment and prior art, this sealed strip obtained by two kinds of methods has the process of secondary baking in the course of processing, and this process has a significant impact for the shrinking percentage tool of obtained sealed strip, therefore by processing parameter involved in secondary baking, contrast the impact of shrinking percentage in varied situations, result is as follows:
(1) when the in-furnace temperature of secondary baking is 200 DEG C, heating the temperature inside the box is 300 DEG C, when baking time is 6min, and the sealed strip obtained by method 1 and the sealed strip obtained by method 2, result is as follows respectively:
| The sealed strip life size (mm) that method 1 is obtained | Size (mm) after secondary baking | Shrink size (mm) | Shrinking percentage (%) |
| 935 | 911 | 24 | 2.54% |
| 934 | 911 | 23 | 2.50% |
| 933 | 909 | 24 | 2.58% |
| 935 | 911 | 24 | 2.57% |
| 934 | 911 | 23 | 2.51% |
| On average | 2.54% | ||
| The sealed strip life size (mm) that method 2 is obtained | Size (mm) after secondary baking | Shrink size (mm) | Shrinking percentage (%) |
| 935 | 924 | 11 | 1.18% |
| 934 | 924 | 10 | 1.07% |
| 933 | 921 | 12 | 1.29% |
| 935 | 925 | 10 | 1.07% |
| 934 | 923 | 11 | 1.18% |
| On average | 1.16% |
(2) when the in-furnace temperature of secondary baking is 200 DEG C, heating the temperature inside the box is 300 DEG C, when baking time is 10min, and the sealed strip obtained by method 1 and the sealed strip obtained by method 2, result is as follows respectively:
| The sealed strip life size (mm) that method 1 is obtained | Size (mm) after secondary baking | Shrink size (mm) | Shrinking percentage (%) |
| 934 | 910 | 24 | 2.60% |
| 933 | 908 | 25 | 2.63% |
| 931 | 906 | 25 | 2.70% |
| 934 | 909 | 25 | 2.65% |
| 936 | 911 | 25 | 2.71% |
| On average | 2.66% | ||
| The sealed strip life size (mm) that method 2 is obtained | Size (mm) after secondary baking | Shrink size (mm) | Shrinking percentage (%) |
| 934 | 919 | 15 | 1.61% |
| 933 | 919 | 14 | 1.50% |
| 931 | 921 | 10 | 1.07% |
| 934 | 921 | 13 | 1.39% |
| 936 | 921 | 15 | 1.60% |
| On average | 1.44% |
(3) when the in-furnace temperature of secondary baking is 200 DEG C, heating the temperature inside the box is 400 DEG C, when baking time is 10min, and the sealed strip obtained by method 1 and the sealed strip obtained by method 2, result is as follows respectively:
| The sealed strip life size (mm) that method 1 is obtained | Size (mm) after secondary baking | Shrink size (mm) | Shrinking percentage (%) |
| 935 | 909 | 26 | 2.83% |
| 935 | 908 | 27 | 2.85% |
| 935 | 908 | 27 | 2.90% |
| 934 | 907 | 27 | 2.93% |
| 934 | 907 | 27 | 2.87% |
| On average | 2.88% | ||
| The sealed strip life size (mm) that method 2 is obtained | Size (mm) after secondary baking | Shrink size (mm) | Shrinking percentage (%) |
| 935 | 919 | 16 | 1.71% |
| 935 | 919 | 16 | 1.71% |
| 935 | 917 | 18 | 1.93% |
| 934 | 918 | 16 | 1.71% |
| 934 | 917 | 17 | 1.82% |
| On average | 1.78% |
Show that secondary baking step affects very large for the shrinking percentage of sealed strip by above-mentioned test, after the temperature in heating container raises and baking time extends, its shrinking percentage all can be made obviously to become large, and the working method that the glass guide groove sealing strip of automotive sizing material adopting the present embodiment to provide and the present embodiment provide, after saving secondary baking step, the shrinking percentage of obtained sealed strip is all within 1%.
embodiment 2-7
Embodiment 2-7 is respectively a kind of glass guide groove sealing strip of automotive sizing material, each kind of raw material composition implemented and the identical of embodiment 1, and difference is only the difference of parts by weight used, shown in table specific as follows:
The above-mentioned glass guide groove sealing strip of automotive sizing material that embodiment 2-7 provides, all have the purposes for processing automobile door glass guide groove sealing strip, and working method is all identical with embodiment 1.
Claims (6)
1. a glass guide groove sealing strip of automotive sizing material,
it is characterized in thatcount its raw material by weight and comprise following composition:
Terpolymer EP rubber K8550 60 ~ 90 parts, terpolymer EP rubber K4869 20 ~ 80 parts,
Active zinc flower 8 ~ 15 parts, stearic acid 2 parts,
Dispersion agent L-24 2 ~ 5 parts, polyoxyethylene glycol 2 ~ 5 parts,
FEF level carbon black N550 60 ~ 160 parts, SRF level carbon black N774 60 ~ 160 parts,
Light calcium carbonate 20 ~ 80 parts, active strengthening agent Great-E1 20 ~ 80 parts,
Paraffin oil R-2291 50 ~ 80 parts, moisture adsorbent 8 ~ 15 parts,
Scorch retarder 0.2 ~ 0.8 part, 0.5 ~ 2.0 part, sulphur,
Promotor 3 ~ 6 parts.
2. glass guide groove sealing strip of automotive sizing material according to claim 1,
it is characterized in that:described promotor comprises accelerant B Z, altax, Vulcanization accelerator TMTD, promotor TRA and vulkacit D TDM-80;
Wherein, accelerant B Z 1.0 ~ 2.0 parts, altax 0.5 ~ 1.5 part, Vulcanization accelerator TMTD 0.1 ~ 0.8 part,
Promotor TRA 0.1 ~ 0.8 part, vulkacit D TDM-80 0.5 ~ 1.5 part.
3. a purposes for glass guide groove sealing strip of automotive sizing material as claimed in claim 1 or 2,
it is characterized in that:it is for processing automobile door glass guide groove sealing strip.
4. the purposes of glass guide groove sealing strip of automotive sizing material according to claim 3,
it is characterized in thatit carries out according to following steps order for the method for processing automobile door glass guide groove sealing strip:
Extrude → sulfuration → spraying → solidification → cooling → slightly cut out → park → essence spraying → angle, sanction → joint → bight is sprayed and is solidified → park → inspection → packaging.
5. the purposes of glass guide groove sealing strip of automotive sizing material according to claim 4,
it is characterized in that:described extrusion step is carried out according to following steps order:
Feeding → extrude → microwave vulcanization → tri-section hot-air vulcanization → cooling → stamp → the first traction → surface treatment → spraying → warm air solidification → cooling → air-dry → second traction → severing → collect → put in storage.
6. the purposes of glass guide groove sealing strip of automotive sizing material according to claim 5,
it is characterized in that:the microwave vulcanization temperature of described microwave vulcanization step is 245 ~ 255 DEG C;
In three sections of described hot-air vulcanization steps, temperature is respectively: first paragraph hot-air vulcanization temperature is 245 ~ 255 DEG C, and second segment hot-air vulcanization temperature is 230 ~ 250 DEG C, and the 3rd section of hot-air vulcanization temperature is 230 ~ 250 DEG C;
The pulling speed of the first traction is 5.9 ~ 6.1m/min;
The pulling speed of the second traction is 6.3 ~ 6.5m/min.
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| CN109401074A (en) * | 2018-09-19 | 2019-03-01 | 武汉东海敏实汽车零部件有限公司 | A kind of preparation method of the high volume resistance substrate rubber water slitting of high rigidity |
| CN109370065B (en) * | 2018-10-15 | 2021-05-04 | 浙江仙通橡塑股份有限公司 | Rubber compound for automobile sealing strip continuously mixed by one-step method and preparation method thereof |
| CN115386172A (en) * | 2022-09-23 | 2022-11-25 | 江西奋发科技有限公司 | High-performance low-compression-set ethylene propylene diene monomer sealing rubber strip |
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| CN103194155A (en) | 2013-07-10 |
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Effective date of registration: 20181220 Address after: 072550 Chaoyang North Street (Xu) 299, Xushui District, Baoding City, Hebei Province Patentee after: Baoding Norbo Auto Parts Co., Ltd. Address before: No. 2266 Chaoyang South Street, Baoding City, Hebei Province, 071000 Patentee before: Changcheng Automobile Co., Ltd. |
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Address after: 072550 Chaoyang North Street (Xu) 299, Xushui District, Baoding City, Hebei Province Patentee after: Nuo Bo rubber Co., Ltd Address before: 072550 Chaoyang North Street (Xu) 299, Xushui District, Baoding City, Hebei Province Patentee before: Baoding Norbo Auto Parts Co., Ltd. |
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