JPH07290465A - Vulcanization method for rubber extruded products - Google Patents
Vulcanization method for rubber extruded productsInfo
- Publication number
- JPH07290465A JPH07290465A JP6110473A JP11047394A JPH07290465A JP H07290465 A JPH07290465 A JP H07290465A JP 6110473 A JP6110473 A JP 6110473A JP 11047394 A JP11047394 A JP 11047394A JP H07290465 A JPH07290465 A JP H07290465A
- Authority
- JP
- Japan
- Prior art keywords
- weather strip
- vulcanization
- shape
- rubber
- rubber extruded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 37
- 235000012438 extruded product Nutrition 0.000 title claims abstract description 29
- 238000004073 vulcanization Methods 0.000 title abstract description 36
- 238000000034 method Methods 0.000 title abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000010894 electron beam technology Methods 0.000 claims abstract description 14
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 238000005485 electric heating Methods 0.000 description 4
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010070 extrusion (rubber) Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
(57)【要約】
【目的】 従来加硫時に必要であった形状保持材が無
くても、ゴム押出成形品の正規形状を保持することがで
き、省資源化と省コスト化を図ることができるゴム押出
成形品の加硫方法を提供する。
【構成】 押出機１１から押し出された未加硫のウエザ
ストリップ１を第一加硫槽１２に送り、空中に支持した
状態で、該ウエザストリップ１の表面部を電子線照射装
置１４からの電子線照射により加硫してウエザストリッ
プ１の形状を安定させる。その後、ウエザストリップ１
を第二加硫槽１５及び第三加硫槽１８に送り、ベルトコ
ンベア搬送装置１６の上に載せた状態で、該ウエザスト
リップ１の残部をマイクロ波加熱装置１７及び電熱加熱
装置１９により加硫する。
(57) [Abstract] [Purpose] It is possible to maintain the regular shape of a rubber extruded product without the shape-retaining material that was conventionally required for vulcanization, thus saving resources and cost. A method for vulcanizing an extruded rubber product is provided. [Structure] An unvulcanized weather strip 1 extruded from an extruder 11 is sent to a first vulcanization tank 12, and the surface portion of the weather strip 1 is supported by an electron beam irradiation device 14 while being supported in the air. Then, the weather strip 1 is vulcanized by electron beam irradiation to stabilize the shape of the weather strip 1. After that, weather strip 1
Is sent to the second vulcanizing tank 15 and the third vulcanizing tank 18, and the rest of the weather strip 1 is heated by the microwave heating device 17 and the electrothermal heating device 19 while being placed on the belt conveyor device 16. Vulcanize.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ゴム押出成形品の加硫
方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for vulcanizing an extruded rubber article.
【０００２】[0002]
【従来の技術】図８〜図１２は、従来のゴム押出成形品
の加硫方法を示すもので、ゴム押出成形品として自動車
用ウエザストリップを例示している。図８及び図１１に
示すように、押出機５１から押し出されたウエザストリ
ップ４１は、まず第一加硫槽５２に送られ、ベルトコン
ベア搬送装置５３の上に載せられた状態で、マイクロ波
加熱装置５４から放射されるマイクロ波により全体的に
加熱されて加硫する。マイクロ波加熱装置は、特開昭５
８−１６３６３７号公報等により公知である。続いて、
ウエザストリップ４１は、図８及び図１２に示すよう
に、第二加硫槽５５に送られ、ベルトコンベア搬送装置
５３の上に載せられた状態で、電熱加熱装置５６から輻
射される熱により表面部から加熱されて加硫する。2. Description of the Related Art FIGS. 8 to 12 show a conventional method for vulcanizing a rubber extruded product, and exemplify a weather strip for automobiles as the rubber extruded product. As shown in FIG. 8 and FIG. 11, the weather strip 41 extruded from the extruder 51 is first sent to the first vulcanization tank 52 and placed on the belt conveyor transport device 53, where the microwave It is entirely heated and vulcanized by the microwave radiated from the heating device 54. A microwave heating device is disclosed in Japanese Patent Laid-Open No.
It is known from, for example, Japanese Patent Laid-Open No. 8-163637. continue,
As shown in FIG. 8 and FIG. 12, the weather strip 41 is sent to the second vulcanization tank 55 and placed on the belt conveyor transport device 53, by the heat radiated from the electrothermal heating device 56. The surface is heated and vulcanized.
【０００３】ところで、押出機５１から押し出されたば
かりの未加硫のウエザストリップ４１は、非常に柔か
く、外力や自重によって変形しやすいため、加硫時には
その変形を防いで正規形状を保持するように対策しなけ
ればならない。例えば、例示したウエザストリップ４１
は、図９に示すように、トリム部４２の右側下端に斜め
下方へ延びるリップ部４３を有しているから、図１０に
二点鎖線で示すように、何等の考慮も無くこのウエザス
トリップ４１をベルトコンベア搬送装置５３の上に載せ
たとすると、図１０に実線で示すように、自重によって
リップ部４３が水平に近付く方向に変形し、その状態で
加硫されてしまう。By the way, the unvulcanized weather strip 41 just extruded from the extruder 51 is very soft and easily deformed by an external force or its own weight. Therefore, during the vulcanization, the deformation is prevented and the regular shape is maintained. Have to deal with. For example, the illustrated weather strip 41
As shown in FIG. 9, since the trim portion 42 has a lip portion 43 that extends obliquely downward at the lower right end of the trim portion 42, as shown by the chain double-dashed line in FIG. If 41 is placed on the belt conveyor device 53, as shown by the solid line in FIG. 10, the lip portion 43 is deformed by its own weight in the direction in which it approaches the horizontal direction, and is vulcanized in that state.
【０００４】そこで従来は、図９に示すように、トリム
部４２の内側にトリム部４２と同一材料（一般にＥＰＤ
Ｍゴム）よりなる形状保持材４４を押出機５１から同時
に押し出している。そして、図１１及び図１２に示すよ
うに、ウエザストリップ４１をベルトコンベア搬送装置
５３の上に載せたとき、形状保持材４４がトリム部４２
を持ち上げるように支えてリップ部４３の変形を防ぎ、
正規形状を保持するようにしている。Therefore, conventionally, as shown in FIG. 9, the same material as the trim portion 42 (generally EPD) is used inside the trim portion 42.
The shape-retaining material 44 made of (M rubber) is simultaneously extruded from the extruder 51. Then, as shown in FIGS. 11 and 12, when the weather strip 41 is placed on the belt conveyor transport device 53, the shape-retaining material 44 causes the trim portion 42 to move.
Support to prevent the lip 43 from deforming,
It keeps the regular shape.
【０００５】[0005]
【発明が解決しようとする課題】ところが、前記形状保
持材４４は加硫後にウエザストリップ４１から外して廃
棄されており、資源的にもコスト的にも相当な無駄にな
っていた。However, since the shape-retaining material 44 is removed from the weather strip 41 and discarded after vulcanization, it is a waste of resources and cost.
【０００６】本発明の目的は、上記課題を解決し、従来
加硫時に必要であった形状保持材が無くても、ゴム押出
成形品の正規形状を保持することができ、省資源化と省
コスト化を図ることができるゴム押出成形品の加硫方法
を提供することにある。The object of the present invention is to solve the above-mentioned problems and to maintain the regular shape of a rubber extruded product even without the shape-retaining material conventionally required for vulcanization, thereby saving resources and saving resources. An object of the present invention is to provide a method for vulcanizing a rubber extruded product that can reduce costs.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明のゴム押出成形品の加硫方法においては、押
出機から押し出された未加硫のゴム押出成形品を空中に
支持した状態で、該ゴム押出成形品の表面部を電子線照
射により加硫してゴム押出成形品の形状を安定させた
後、前記ゴム押出成形品を搬送装置の上に載せた状態
で、ゴム押出成形品の残部を加熱手段により加硫すると
いう手段をとった。In order to achieve the above object, in the method for vulcanizing a rubber extruded product of the present invention, an unvulcanized rubber extruded product extruded from an extruder is supported in the air. In this state, the surface portion of the rubber extruded product is vulcanized by electron beam irradiation to stabilize the shape of the rubber extruded product, and then the rubber extruded product is placed on a conveying device and rubber extruded. A means of vulcanizing the rest of the molded product by a heating means was adopted.
【０００８】未加硫のゴム押出成形品を空中に支持する
方法としては、ゴム押出成形品を変形させない形状をも
つ複数のローラ間に張る方法や、複数の支持ピンの上に
支える方法等を例示できる。電子線照射により加硫する
ゴム押出成形品の表面部は、ゴム押出成形品の全表面部
でもよいが、形状を安定させるのに必要な最少限の表面
部、具体的にはゴム押出成形品を搬送装置の上に載せた
ときに変形しやすい部位の表面部だけでもよい。搬送装
置の上に載せたゴム押出成形品を加硫する加熱手段とし
ては、マイクロ波加熱装置、電熱加熱装置、熱風加熱装
置等を例示できる。As a method of supporting an unvulcanized rubber extruded product in the air, there are a method of stretching it between a plurality of rollers having a shape that does not deform the rubber extruded product, a method of supporting it on a plurality of support pins, and the like. It can be illustrated. The surface of the rubber extruded product that is vulcanized by electron beam irradiation may be the entire surface of the rubber extruded product, but the minimum surface required to stabilize the shape, specifically the rubber extruded product. Only the surface portion of the portion that is easily deformed when placed on the carrier device may be used. Examples of the heating means for vulcanizing the rubber extruded product placed on the conveying device include a microwave heating device, an electric heating device, and a hot air heating device.
【０００９】[0009]
【作用】本発明のゴム押出成形品の加硫方法によれば、
ゴム押出成形品を空中に支持した状態で、該ゴム押出成
形品の表面部を電子線照射により加硫するので、ゴム押
出成形品の形状を正規形状に安定させることができる。
従って、その後、形状保持材の助け無く、ゴム押出成形
品を搬送装置の上に載せても、ゴム押出成形品は変形せ
ず、その状態でゴム押出成形品の残部を加熱手段により
加硫することができる。According to the vulcanization method for rubber extruded articles of the present invention,
Since the surface of the rubber extruded product is vulcanized by electron beam irradiation while the rubber extruded product is supported in the air, the shape of the rubber extruded product can be stabilized to a regular shape.
Therefore, after that, even if the rubber extruded product is placed on the conveyor without the aid of the shape-retaining material, the rubber extruded product is not deformed, and the remaining part of the rubber extruded product is vulcanized by the heating means in that state. be able to.
【００１０】[0010]
【実施例】以下、本発明を連続押出成形される自動車用
ウエザストリップの加硫方法に具体化した一実施例につ
いて、図１〜図６を参照して説明する。EXAMPLE An example in which the present invention is embodied as a method for vulcanizing a continuously extruded automobile weatherstrip will be described with reference to FIGS.
【００１１】押出機１１から押し出されるウエザストリ
ップ１は、前記従来例と同じもので、図２に示すよう
に、断面門形のトリム部２と、その右側下端から斜め下
方へ延びるリップ部３とが、ＥＰＤＭソリッドゴムによ
り押し出されると同時に、トリム部２の左側外側面から
斜め上方へ延びるシール部４と、リップ部３の外側面に
付着した柔軟部５とが、ＥＰＤＭスポンジゴムにより押
し出されてなる共押出成形品である。なお、従来例と異
なり、形状保持材は共押し出しされない。The weather strip 1 extruded from the extruder 11 is the same as that of the conventional example. As shown in FIG. 2, a trim portion 2 having a gate-shaped cross section and a lip portion 3 extending obliquely downward from the lower right end thereof. Are simultaneously extruded by the EPDM solid rubber, and at the same time, the seal portion 4 extending obliquely upward from the left outer surface of the trim portion 2 and the flexible portion 5 attached to the outer surface of the lip portion 3 are extruded by the EPDM sponge rubber. It is a coextrusion molded article. Unlike the conventional example, the shape retaining material is not coextruded.
【００１２】図１に示すように、押出機１１の押出口に
は第一加硫槽１２が設置されている。第一加硫槽１２の
内部には、図３に示すようなウエザストリップ１を変形
させない形状をもつ複数のローラ１３が設けられ、ウエ
ザストリップ１はこれらのローラ１３間に張られて空中
に支持され、その状態で送られるようになっている。ま
た、第一加硫槽１２の内部には、空中に支持されたウエ
ザストリップ１に向けて電子線を照射する電子線照射装
置１４が設けられ、その照射角度は適宜変更できるよう
になっている。As shown in FIG. 1, a first vulcanization tank 12 is installed at the extrusion port of the extruder 11. Inside the first vulcanizing tank 12, a plurality of rollers 13 having a shape that does not deform the weather strip 1 as shown in FIG. 3 are provided, and the weather strip 1 is stretched between these rollers 13 and is aerial. It is supported by and is sent in that state. An electron beam irradiation device 14 for irradiating the weather strip 1 supported in the air with an electron beam is provided inside the first vulcanization tank 12, and the irradiation angle thereof can be changed appropriately. There is.
【００１３】第一加硫槽１２の出口には第二加硫槽１５
が設置され、その内部にはベルトコンベア搬送装置１６
とマイクロ波加熱装置１７とが設けられている。さら
に、第二加硫槽１５の出口には第三加硫槽１８が設置さ
れ、その内部にはベルトコンベア搬送装置１６と電熱加
熱装置１９とが設けられている。At the outlet of the first vulcanization tank 12, the second vulcanization tank 15 is provided.
Is installed, and the belt conveyor transport device 16 is installed inside the
And a microwave heating device 17 are provided. Furthermore, a third vulcanization tank 18 is installed at the outlet of the second vulcanization tank 15, and a belt conveyor transfer device 16 and an electric heating device 19 are provided inside thereof.
【００１４】さて、押出機１１から例えば約６ｍ／分の
速度で押し出された未加硫のウエザストリップ１は、ま
ず第一加硫槽１２に送られ、図１に示すように、ローラ
１３により空中に支持された状態で送られる。このと
き、図４に示すように、下方の電子線照射装置１４から
ウエザストリップ１のトリム部２及びリップ部３の下面
の表面部６（同図の二点鎖線までの範囲）に向けて電子
線が照射される。この表面部６では、電子線のエネルギ
によってポリマー分子の側鎖が切断され、該切断により
生成したラジカルの再結合により架橋が進行するため、
速やかに加硫し硬化する。この表面部６の加硫・硬化に
よって、ウエザストリップ１の特にトリム部２及びリッ
プ部３の形状が正規形状に安定する。The unvulcanized weather strip 1 extruded from the extruder 11 at a speed of, for example, about 6 m / min is first sent to the first vulcanizing tank 12 and, as shown in FIG. It is sent in the state of being supported by the air. At this time, as shown in FIG. 4, from the lower electron beam irradiation device 14 toward the surface portion 6 (the range up to the chain double-dashed line in the figure) of the lower surface of the trim portion 2 and the lip portion 3 of the weather strip 1. The electron beam is irradiated. On this surface portion 6, the side chains of the polymer molecules are cut by the energy of the electron beam, and the recombination of the radicals generated by the cutting advances the cross-linking.
It vulcanizes and cures quickly. By the vulcanization and curing of the surface portion 6, the shapes of the trim portion 2 and the lip portion 3 of the weather strip 1 are stabilized to be regular shapes.
【００１５】次に、前記ウエザストリップ１は第二加硫
槽１５に送られ、図５に示すように、形状保持材の助け
無く、ベルトコンベア搬送装置１６の上に載せられた状
態で搬送されながら、マイクロ波加熱装置１７から放射
されるマイクロ波により全体的に加熱されて加硫する。
続いて、前記ウエザストリップ１は、図６に示すよう
に、第三加硫槽１８に送られ、やはり形状保持材の助け
無く、ベルトコンベア搬送装置１６の上に載せられた状
態で搬送されながら、電熱加熱装置１９から輻射される
熱により表面部から加熱されて加硫する。Next, the weather strip 1 is sent to the second vulcanization tank 15 and, as shown in FIG. 5, is carried on the belt conveyor carrying device 16 without the aid of the shape-retaining material. While being heated, it is entirely heated and vulcanized by the microwave radiated from the microwave heating device 17.
Subsequently, as shown in FIG. 6, the weather strip 1 is sent to the third vulcanization tank 18 and is carried on the belt conveyor device 16 without the aid of the shape-retaining material. Meanwhile, the surface portion is heated by the heat radiated from the electric heating device 19 to be vulcanized.
【００１６】このように、形状保持材の助け無く、ウエ
ザストリップ１をベルトコンベア搬送装置１６の上に載
せても、前記の通り表面部６の加硫・硬化により形状が
安定したトリム部２及びリップ部３は変形しないので、
その状態でウエザストリップ１を加熱装置１７，１９に
より加硫することができる。In this way, even if the weather strip 1 is placed on the belt conveyor 16 without the aid of the shape-retaining material, the trim portion 2 having a stable shape due to the vulcanization and curing of the surface portion 6 as described above. Since the lip portion 3 is not deformed,
In that state, the weather strip 1 can be vulcanized by the heating devices 17 and 19.
【００１７】なお、本発明は前記実施例の構成に限定さ
れるものではなく、例えば以下のように、発明の趣旨か
ら逸脱しない範囲で変更して具体化することもできる。 （１）第一加硫槽１２において、図７に示すように、複
数の電子線照射装置１４からウエザストリップ１に向け
て電子線を多方向に照射すること。 （２）ウエザストリップ以外の各種ゴム押出成形品の加
硫方法として具体化すること。The present invention is not limited to the configuration of the above-described embodiment, but may be embodied with modifications within the scope not departing from the spirit of the invention, for example, as follows. (1) In the first vulcanization tank 12, as shown in FIG. 7, irradiate electron beams from a plurality of electron beam irradiation devices 14 toward the weather strip 1 in multiple directions. (2) To be embodied as a vulcanization method for various rubber extruded products other than weather strips.
【００１８】[0018]
【発明の効果】本発明のゴム押出成形品の加硫方法は、
上記の通り構成されているので、従来加硫時に必要であ
った形状保持材が無くても、ゴム押出成形品の正規形状
を保持することができ、省資源化と省コスト化を図るこ
とができるという優れた効果を奏する。The vulcanization method of the rubber extrusion molded article of the present invention is
Since it is configured as described above, it is possible to maintain the regular shape of the rubber extrusion-molded product without the shape-retaining material that was conventionally required for vulcanization, and it is possible to achieve resource saving and cost saving. It has an excellent effect that it can be done.
【図１】本発明の実施例の加硫方法に使用する装置の概
略正面図である。FIG. 1 is a schematic front view of an apparatus used in a vulcanizing method according to an embodiment of the present invention.
【図２】押し出されたウエザストリップを示す図１のＩ
Ｉ−ＩＩ線断面図である。2 I of FIG. 1 showing an extruded weatherstrip
It is a sectional view taken along the line I-II.
【図３】第一加硫槽に設けられたローラの側面図であ
る。FIG. 3 is a side view of a roller provided in the first vulcanization tank.
【図４】第一加硫槽における加硫方法を示す図１のＩＶ
−ＩＶ線断面図である。FIG. 4 IV of FIG. 1 showing the vulcanization method in the first vulcanization tank
It is a IV-line sectional view.
【図５】第二加硫槽における加硫方法を示す図１のＶ−
Ｖ線断面図である。5 is a V- of FIG. 1 showing a vulcanization method in a second vulcanization tank.
It is a V line sectional view.
【図６】第三加硫槽における加硫方法を示す図１のＶＩ
−ＶＩ線断面図である。6 is a VI of FIG. 1 showing the vulcanization method in the third vulcanization tank
It is a VI line sectional view.
【図７】第一加硫槽における加硫方法の別例を示す断面
図である。FIG. 7 is a cross-sectional view showing another example of the vulcanization method in the first vulcanization tank.
【図８】従来例の加硫方法に使用する装置の概略正面図
である。FIG. 8 is a schematic front view of an apparatus used in a conventional vulcanizing method.
【図９】押し出されたウエザストリップを示す図８のＩ
Ｘ−ＩＸ線断面図である。9 is the I of FIG. 8 showing the extruded weatherstrip.
It is an X-IX line sectional view.
【図１０】同ウエザストリップの変形を示す断面図であ
る。FIG. 10 is a cross-sectional view showing a modification of the weather strip.
【図１１】第一加硫槽における加硫方法を示す図８のＸ
Ｉ−ＸＩ線断面図である。FIG. 11: X in FIG. 8 showing the vulcanization method in the first vulcanization tank
It is a sectional view taken along the line I-XI.
【図１２】第二加硫槽における加硫方法を示す図８のＸ
ＩＩ−ＸＩＩ線断面図である。FIG. 12: X in FIG. 8 showing the vulcanization method in the second vulcanization tank
FIG. 11 is a sectional view taken along line II-XII.
１ ウエザストリップ ６ 表面部 １１ 押出機 １２ 第一加硫槽 １３ ローラ １４ 電子線照射装置 １５ 第二加硫槽 １６ ベルトコンベア搬送装置 １７ マイクロ波加熱装置 １８ 第三加硫槽 １９ 電熱加熱装置 1 Weather Strip 6 Surface Part 11 Extruder 12 First Vulcanizing Tank 13 Roller 14 Electron Beam Irradiating Device 15 Second Vulcanizing Tank 16 Belt Conveyor Conveying Device 17 Microwave Heating Device 18 Third Vulcanizing Tank 19 Electric Heating Device
Claims (1)
出成形品を空中に支持した状態で、該ゴム押出成形品の
表面部を電子線照射により加硫してゴム押出成形品の形
状を安定させた後、前記ゴム押出成形品を搬送装置の上
に載せた状態で、ゴム押出成形品の残部を加熱手段によ
り加硫することを特徴とするゴム押出成形品の加硫方
法。1. The shape of a rubber extruded product obtained by vulcanizing the surface portion of the rubber extruded product extruded from an extruder by electron beam irradiation in a state of supporting the unvulcanized rubber extruded product in the air. After stabilizing, the rubber extruded product is vulcanized by heating means while the rest of the rubber extruded product is placed on a conveying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6110473A JPH07290465A (en) | 1994-04-25 | 1994-04-25 | Vulcanization method for rubber extruded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6110473A JPH07290465A (en) | 1994-04-25 | 1994-04-25 | Vulcanization method for rubber extruded products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07290465A true JPH07290465A (en) | 1995-11-07 |
Family
ID=14536609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6110473A Pending JPH07290465A (en) | 1994-04-25 | 1994-04-25 | Vulcanization method for rubber extruded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07290465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587874A (en) * | 2019-09-26 | 2019-12-20 | 贵州贵航汽车零部件股份有限公司 | Auxiliary vulcanization shaping method and device for special-shaped automobile sealing strip |
-
1994
- 1994-04-25 JP JP6110473A patent/JPH07290465A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587874A (en) * | 2019-09-26 | 2019-12-20 | 贵州贵航汽车零部件股份有限公司 | Auxiliary vulcanization shaping method and device for special-shaped automobile sealing strip |
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