JPS63230742A - Production of smc material - Google Patents
Production of smc materialInfo
- Publication number
- JPS63230742A JPS63230742A JP62065100A JP6510087A JPS63230742A JP S63230742 A JPS63230742 A JP S63230742A JP 62065100 A JP62065100 A JP 62065100A JP 6510087 A JP6510087 A JP 6510087A JP S63230742 A JPS63230742 A JP S63230742A
- Authority
- JP
- Japan
- Prior art keywords
- smc
- resin
- inert gas
- smc material
- film
- 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
- 239000000463 material Substances 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000007789 gas Substances 0.000 claims abstract description 18
- 239000011261 inert gas Substances 0.000 claims abstract description 7
- 238000010926 purge Methods 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 229920005989 resin Polymers 0.000 abstract description 18
- 239000011347 resin Substances 0.000 abstract description 18
- 239000000203 mixture Substances 0.000 abstract description 11
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000002562 thickening agent Substances 0.000 abstract description 4
- 239000000945 filler Substances 0.000 abstract description 3
- 239000003365 glass fiber Substances 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000000306 component Substances 0.000 abstract 3
- 238000005470 impregnation Methods 0.000 description 7
- 238000007796 conventional method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/18—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length in the form of a mat, e.g. sheet moulding compound [SMC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/70—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
-
- 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
- B29B7/002—Methods
- B29B7/007—Methods for continuous mixing
-
- 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
- B29B7/7466—Combinations of similar mixers
-
- 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
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/86—Component parts, details or accessories; Auxiliary operations for working at sub- or superatmospheric pressure
-
- 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
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2805—Mixing plastics, polymer material ingredients, monomers or oligomers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はＳＭＣ材料の製造方法、更に詳しくはエアー、
水分、不純物等の含有量の少ないＳＭＣ材料の製造方法
に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for producing SMC material, more specifically, a method for producing an SMC material using air,
The present invention relates to a method for producing an SMC material with low content of moisture, impurities, etc.
ＳＭＯは合成樹脂例えば不飽和ポリエステル樹脂又は低
縮性若しくは無収縮性に変性された不飽和ポリエステル
樹脂に充填剤、触媒、離型剤、着色剤或いは増粘度など
を配合したペースト状組成物を、強化繊維例えばガラス
繊維のロービングチョップ、チョップストランドマット
又はロービングクロスなどに含浸して増粘させ、粘着性
のない厚さ１〜１０ｍのシート状となした成形材料であ
る。SMO is a paste-like composition in which fillers, catalysts, mold release agents, coloring agents, thickeners, etc. are blended with synthetic resins such as unsaturated polyester resins or unsaturated polyester resins modified to have low shrinkage or non-shrinkage properties. It is a molding material made by impregnating reinforcing fibers, such as glass fiber roving chops, chopped strand mats, or roving cloths, to increase the viscosity and forming it into a non-adhesive sheet with a thickness of 1 to 10 m.
第２図に従来のＳＭＯの製造方法の一例を示す。FIG. 2 shows an example of a conventional SMO manufacturing method.
各樹脂成分３はパイプ１から混合槽２に入り、混合槽２
内で羽４によシ十分混合される。混合され九樹脂成分３
はパルプ２４を通シバイブ５によシ中継槽６に運ばれ、
ここで増粘剤例えばＭｇＯ，Ｍｇ （ＯＨ）、等が加え
られて樹脂混合物７となシ、羽４により十分に混合され
る。上記工程において混合槽２及び中継槽６は大気開放
となっている。次いで樹脂混合物７はパイプ８にょシ８
ＭＣ含浸装置に運ばれ、ドクターブレード９よ）ポリエ
チレンフィルムロール１２からガイドローラ２２に案内
されて出てきたポリエチレンフィルム２０上に塗布され
る。一方、ガクスローピング１０はカッター１１で約２
５ｗ程度に切断され、このチョッピングストランド２１
が上下のポリエチレンフィルム２０と樹脂混合物７との
間に挾みロール１４上に巻き取られて包装される。図中
の矢印は移動又は回転方向を示す。尚このＳＭＣは、更
に一定温度で熟成され（ＭｇＯ増粘）一定の粘度に達し
たのち出荷される。この８ＭＣ含浸工程においても各構
成成分は大気と接触している。Each resin component 3 enters the mixing tank 2 from the pipe 1, and the resin component 3 enters the mixing tank 2 from the pipe 1.
It is thoroughly mixed by the blade 4 inside. Mixed nine resin components 3
The pulp 24 is conveyed to the sieving tank 6 by the sieving vibrator 5,
Here, a thickener such as MgO, Mg (OH), etc. is added and thoroughly mixed with the resin mixture 7 by means of the blade 4. In the above process, the mixing tank 2 and the relay tank 6 are open to the atmosphere. The resin mixture 7 is then passed through the pipe 8.
The MC is transferred to the MC impregnating device and coated onto the polyethylene film 20 that has come out from the polyethylene film roll 12 guided by the guide roller 22 (by the doctor blade 9). On the other hand, Gakusloping 10 is about 2 with cutter 11.
This chopped strand 21 is cut into about 5w.
is wound up on a sandwich roll 14 between the upper and lower polyethylene films 20 and the resin mixture 7 and packaged. Arrows in the figures indicate directions of movement or rotation. This SMC is further aged at a constant temperature (MgO thickening) and shipped after reaching a constant viscosity. Also in this 8MC impregnation step, each component is in contact with the atmosphere.
上記従来の８ＭＣ製造方法においては、樹脂混合工程及
び８ＭＣ含浸工程とも大気開放系で行われておシ、この
工程で作られるＳＭＣ材料中には大気中のエアーが３〜
５０Ｃ／１００ｆ程度含有される。そしてエアー中の酸
素はＳＭＣ硬化時に発生するフリーラジカルに付加する
ことによ）硬化反応を阻害する。従ってＳＭＣの硬化特
性を遅らせるという問題がある。このため従来のＳＭＣ
では板厚２■のもので完全硬化させるまでに必要な時間
は約１００秒以上かかり、成形プレスの作動時間を含め
ると成形サイクルとしては２分以上かかシ、例えばスチ
ールのプレス時間と比べると著しく長く作業効率が悪い
丸めその短縮が大きな課題となっている。更にエアーは
ＳＭＣ成形品にピンホールを生じさせる。In the above-mentioned conventional 8MC manufacturing method, both the resin mixing step and the 8MC impregnation step are performed in an open atmosphere system, and the SMC material produced in this step contains 3 to 30% of atmospheric air.
Contains about 50C/100f. Oxygen in the air inhibits the curing reaction by adding to free radicals generated during SMC curing. Therefore, there is a problem of retarding the curing properties of SMC. Therefore, conventional SMC
So, it takes about 100 seconds or more to completely cure a plate with a thickness of 2 mm, and if you include the operating time of the forming press, the molding cycle takes more than 2 minutes, compared to the press time for steel, for example. Shortening the rounding process, which is extremely long and inefficient, has become a major issue. Furthermore, air causes pinholes in SMC molded products.
又、エアー以外にも例えば大気中の水分や不純物が混入
し、更にこれらの混入量も製造ロットによシ異なるため
８ＭＣ材料、ＳＭＣ成形品又はＳＭＣ塗装品の品質及び
その訳定性の点からも問題がある。In addition to air, for example, moisture and impurities in the atmosphere may be mixed in, and the amount of these mixed substances may vary depending on the manufacturing lot, so it may be difficult to determine the quality of 8MC materials, SMC molded products, or SMC coated products and their interpretability. There's a problem.
ＳＭＣ成形品の品質特に機械特性を改良するために例え
ば特公昭６０−３１６４４号公報中にはＳＭＣのシート
の間に、板状または網状の挿入部を層状に挿入して熱圧
成形する方法が開示されている。In order to improve the quality, especially the mechanical properties, of SMC molded products, for example, Japanese Patent Publication No. 60-31644 describes a method in which plate-like or mesh-like inserts are inserted in layers between SMC sheets and hot-press molding is carried out. Disclosed.
しかしながら、この方法は成形時に行う方法であシ、成
形工程が複雑となり作業効率も悪くなる。However, this method is carried out during molding, which complicates the molding process and reduces work efficiency.
本発明は上記従来技術における問題点を解決するための
ものであり、その目的とするところはエアー、水分、不
純物等の含有量が少なく、硬化時間を短縮できるととも
に優れた品質の成形品を得ることのできるＳＭＣ材料を
提供することにある。The present invention is intended to solve the above-mentioned problems in the prior art, and its purpose is to reduce the content of air, moisture, impurities, etc., shorten the curing time, and obtain molded products of excellent quality. The objective is to provide an SMC material that can
すなわち本発明のＳＭＣ材料の製造方法は、ＳＭＣ材料
を製造する際に、該８ＭＣ材料を構成する成分と接触す
る気相部を非反応性ガスで置換するか又はパージするこ
とを特徴とする。That is, the method for producing an SMC material of the present invention is characterized in that, when producing the SMC material, the gas phase that comes into contact with the components constituting the 8MC material is replaced or purged with a non-reactive gas.
非反応性ガスはＳＭＣ材料を構成する成分と反応せず、
又ＳＭＣ硬化時に発生するフリーラジカルと反応しない
ガス例えばヘリウム、アルゴン等の不活性ガス又は窒素
、二酸化炭素などち当袖Ｖ汁珀春訃プ佃田慴蕎ム
不活性ガス又は窒素を使用するのが好ましく、特に窒素
を゛使用するのが好ましい。Non-reactive gases do not react with the components that make up the SMC material,
It is also preferable to use a gas that does not react with free radicals generated during SMC curing, such as an inert gas such as helium or argon, or an inert gas such as nitrogen or carbon dioxide, or nitrogen. It is particularly preferred to use nitrogen.
気相部を非反応性ガスで置換するには慣用の方法例えば
成分が入った槽内を真空引きしだ後非反応性ガスを導入
するか又は常圧で多量の非反応性ガスを導入することに
よシ行うことができる。To replace the gas phase with a non-reactive gas, use a conventional method, for example, by evacuating the tank containing the components and then introducing the non-reactive gas, or by introducing a large amount of the non-reactive gas at normal pressure. In particular, it can be done.
ＳＭＣ含浸工程のように含浸装置全体を完全に密閉する
ことが困難である場合にはおる程度の密閉構造として非
反応性ガスを導入し、大気をパージする。When it is difficult to completely seal the entire impregnation apparatus as in the SMC impregnation process, a non-reactive gas is introduced to purge the atmosphere to create a somewhat airtight structure.
非反応性ガスの種類や流量等の条件はＳＭＣ材料の構成
成分やＳＭＣ材料の製造装置の性状等を考慮して定める
。Conditions such as the type and flow rate of the non-reactive gas are determined in consideration of the constituent components of the SMC material, the properties of the SMC material manufacturing equipment, and the like.
以下の実施例において本発明を更に詳しく説明する。な
お、本発明は下記実施例に限定されるものではない。The invention will be explained in more detail in the following examples. Note that the present invention is not limited to the following examples.
本発明の、ＳＭＣ材料の製造方法の一例を第１図に基づ
いて説明すみ−
樹脂、ガラス繊維及びフィラー（主に炭酸カルシウム）
からなる樹脂成分３を混合する混合及び真空ポンプ１６
によシバイブ１７を通して真空ぺ１８よシ窒素ガスを導
入し混合槽２及び中継槽６内を窒素置換し、この状態で
混合を行う。これによシェアー混入のほとんどない樹脂
混合物７がＳＭＣ含浸工程へ送られる。ＳＭＣ含浸工程
においては、チョップストランド２１を樹脂混合物７０
間に挾み込む際に最もエアーを材料中に巻き込み易い。An example of the method for producing an SMC material according to the present invention will be explained based on FIG. 1 - Resin, glass fiber, and filler (mainly calcium carbonate)
A mixing and vacuum pump 16 for mixing the resin component 3 consisting of
Nitrogen gas is introduced into the vacuum pipe 18 through the vacuum cleaner 17 to replace the inside of the mixing tank 2 and the relay tank 6 with nitrogen, and mixing is performed in this state. As a result, the resin mixture 7 with almost no shear contamination is sent to the SMC impregnation step. In the SMC impregnation process, the chopped strands 21 are injected into the resin mixture 70.
Air is most likely to be drawn into the material when sandwiched between the materials.
この工程には密閉室２５を設けるが、室内を完全に真空
化することは難しいため、窒素ボンベ１８を用い、密閉
室２５内を窒素パージすることによシ、エアーが材料中
に混入することを防止する。図中の他の数字は第２図に
おいて定義されたものと同じ意味を表わす。A sealed chamber 25 is provided for this process, but since it is difficult to completely evacuate the chamber, a nitrogen cylinder 18 is used to purge the sealed chamber 25 with nitrogen to prevent air from entering the material. prevent. Other numbers in the figure have the same meaning as defined in FIG.
＜ＳＭＣ材料中の含有エアー量の比較〉従来の方法で製
造したＳＭＣ材料中の含有エアー量は３〜５ （Ｉ：／
１００ ｆであるが、本発明の方法で製造したＳＭＣ
材料中の含有エアー量は１．５〜２ＣＣ／１０１であり
、従来法の棒以下である。<Comparison of air content in SMC materials> The air content in SMC materials produced by conventional methods is 3 to 5 (I:/
100 f, but the SMC produced by the method of the present invention
The amount of air contained in the material is 1.5 to 2 CC/101, which is less than that of the conventional method.
又、更にＳＭＣ含浸工程で巻き込むエアー量を減少させ
れば含有エアーｔを０．５ＣＣ／１００ｆ’以下にする
こともできる。Further, by further reducing the amount of air involved in the SMC impregnation step, the contained air t can be made 0.5 CC/100 f' or less.
下記第１表に含有エアー量と硬化時間との関係を測定し
た結果を示す。Table 1 below shows the results of measuring the relationship between the amount of air contained and the curing time.
第１９ 含有エアー量と硬化時間との関係性１）硬化
時間はキュラストメータによ＃）測定した。No. 19 Relationship between air content and curing time 1) Curing time was measured using a curelastometer.
注２）試料ムｌ及びム２は樹脂混合物（ペースト）で含
有エアー量を測定した。又
試料＆３はＳＭＣで含有エアー量を測
定した。Note 2) Samples M1 and M2 were resin mixtures (paste) and the amount of air contained was measured. In addition, the amount of air contained in Sample &3 was measured using SMC.
注３）含有エアー量は１．１．１− ）リクロルエタン
に試料を溶解し、発生するガス量
を測定した。Note 3) The amount of air contained is 1.1.1-) A sample was dissolved in dichloroethane, and the amount of gas generated was measured.
第１表よシ、本発明の方法を用いる場合には従来の方法
を用いる場合に比べて得られるＳＭＣ材料の硬化時間が
棒程度に短縮されるのが判る。From Table 1, it can be seen that when the method of the present invention is used, the curing time of the SMC material obtained is shortened to about a bar compared to when the conventional method is used.
上述のように本発明のＳＭＣ材料の製造方法は、ＳＭＣ
材料を製造する際に、該ＳＭＣ材料を構成する成分に接
触する気相部を非反応性ガスで置換するか又はパージす
るため、ＳＭＣ材料中に含有されるエアー、水分又は不
純物等を従来に比べて少なくすることができ、硬化時間
を短縮できるとともにＳＭＣ材料、ＳＭＣ成形品又はＳ
ＭＯ塗装品の品質及び安定性を向上させることができる
。As mentioned above, the method for manufacturing the SMC material of the present invention
When manufacturing the material, air, moisture, impurities, etc. contained in the SMC material are replaced or purged with a non-reactive gas in the gas phase that comes into contact with the components constituting the SMC material. It is possible to shorten the curing time and to reduce the amount of SMC material, SMC molded product or SMC material.
The quality and stability of MO coated products can be improved.
又、５ｈｉｃ材料を成形する際ＳＭＣ材料に含有されて
いるエアーの影響で発生するピンホールを減らすことが
できる。このためＳＭＣ成形品の手直し工数の低減及び
その塗装品の手直し工数低減が可能となり、作業効率が
向上する。Furthermore, when molding the 5hic material, pinholes that occur due to the influence of air contained in the SMC material can be reduced. Therefore, it is possible to reduce the number of man-hours required for reworking SMC molded products and for the painted products, thereby improving work efficiency.
第１図は本発明のＳＭＣ材料の製造方法の一実施例の説
明図、
第２図は従来のＳＭＣ材料の製造方法の一例の説明図で
ある。
図中、
１、へ８，１７・・・・・・パイプ
２・・・・・・・・・・・・・・・混合槽３・・・・・
・・・・・・・・・・樹脂成分４４・・・・・・・・・
・・・羽
６・・・・・・・・・・・・・・・中継槽７・・・・・
・・・・・・・・・・樹脂混合物９・・・・・・・・・
・・・・・・ ドクターブレード１０・・・・・・ガラ
スロービング
１１・・・・・・カッター
１２・・・・・・ホリエチレ／フイルムロール１３ ・
・・・・・圧縮ローラ
１４ ・・・・・・ロール
１５ ・・・・・・真空タンク
１６・・・・・・真空ポンプ
１８・・・・・・窒素ボンベ
／’：ｌ 、 １９’・・・・・・密閉板２０ ・・
・・・・ポリエチレンフィルム２１ ・・・・・・チ
ョッピングストランド２２ ・・・・・・ガイドローラ
２３ ・・・・・・移動ローラ
２４・・・・・・パルプ
２５ ・・・・・・密閉室
特許出願人 トヨタ自動車株式会社
代理人 弁理士 ４ 優 美
（ほか２名）
牙１図
１５−東空九７ １６ 真空ホープ １
８ 嘗鴬ホ゛ンギ才２肉FIG. 1 is an explanatory diagram of an example of the method for manufacturing an SMC material of the present invention, and FIG. 2 is an explanatory diagram of an example of a conventional method for manufacturing an SMC material. In the diagram, 1, to 8, 17...Pipe 2...Mixing tank 3...
・・・・・・・・・Resin component 44・・・・・・・・・
・・・Feather 6・・・・・・・・・・・・Relay tank 7・・・・・・
・・・・・・・・・Resin mixture 9・・・・・・・・・
・・・・・・Doctor blade 10・・・Glass roving 11・・・Cutter 12・・・Holieret/film roll 13・
...Compression roller 14 ...Roll 15 ...Vacuum tank 16 ...Vacuum pump 18 ...Nitrogen cylinder /':l, 19' ...Sealing plate 20...
...Polyethylene film 21 ...Chopping strand 22 ...Guide roller 23 ...Moving roller 24 ...Pulp 25 ... Sealed chamber Patent applicant Toyota Motor Corporation representative Patent attorney 4 Yumi (and 2 others) Fang 1 Figure 15 - Toku 9 7 16 Vacuum Hope 1
8 嘗鴬 hongi sai 2 meat
Claims (3)
する成分に接触する気相部を非反応性ガスで置換するか
又はパージすることを特徴とするＳＭＣ材料の製造方法
。(1) A method for producing an SMC material, which comprises replacing or purging a gas phase that comes into contact with components constituting the SMC material with a non-reactive gas when producing the SMC material.
特徴とする特許請求の範囲第１項記載の方法。(2) The method according to claim 1, wherein the non-reactive gas is nitrogen or an inert gas.
請求の範囲第２項記載の方法。(3) The method according to claim 2, wherein the non-reactive gas is nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62065100A JPS63230742A (en) | 1987-03-19 | 1987-03-19 | Production of smc material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62065100A JPS63230742A (en) | 1987-03-19 | 1987-03-19 | Production of smc material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63230742A true JPS63230742A (en) | 1988-09-27 |
Family
ID=13277151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62065100A Pending JPS63230742A (en) | 1987-03-19 | 1987-03-19 | Production of smc material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63230742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2778360A1 (en) * | 1998-05-11 | 1999-11-12 | Inoplast Sa | INSTALLATION FOR PRODUCING INJECTION AND COMPRESSION MOLDING MATERIAL |
-
1987
- 1987-03-19 JP JP62065100A patent/JPS63230742A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2778360A1 (en) * | 1998-05-11 | 1999-11-12 | Inoplast Sa | INSTALLATION FOR PRODUCING INJECTION AND COMPRESSION MOLDING MATERIAL |
| EP0958855A1 (en) * | 1998-05-11 | 1999-11-24 | Inoplast | Installation for producing injection- and compression moulding material |
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