JPH0342573B2 - - Google Patents
Info
- Publication number
- JPH0342573B2 JPH0342573B2 JP59030093A JP3009384A JPH0342573B2 JP H0342573 B2 JPH0342573 B2 JP H0342573B2 JP 59030093 A JP59030093 A JP 59030093A JP 3009384 A JP3009384 A JP 3009384A JP H0342573 B2 JPH0342573 B2 JP H0342573B2
- Authority
- JP
- Japan
- Prior art keywords
- stacked
- back sides
- laminate
- sheets
- prepreg
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000000123 paper Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 241000270708 Testudinidae Species 0.000 description 1
- FHKPLLOSJHHKNU-INIZCTEOSA-N [(3S)-3-[8-(1-ethyl-5-methylpyrazol-4-yl)-9-methylpurin-6-yl]oxypyrrolidin-1-yl]-(oxan-4-yl)methanone Chemical compound C(C)N1N=CC(=C1C)C=1N(C2=NC=NC(=C2N=1)O[C@@H]1CN(CC1)C(=O)C1CCOCC1)C FHKPLLOSJHHKNU-INIZCTEOSA-N 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
本発明は、電気絶縁用フエノール樹脂積層板の
ねじれを改良する製造法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a manufacturing method for improving the twisting of a phenolic resin laminate for electrical insulation.
従来、上記積層板は、そりを少なくする為にシ
ート状高密度紙基材にフエノール樹脂を含浸乾燥
したプリプレグを所定の長さに切断し、その所定
枚数を積み重ねて製造されている。この時使用さ
れるシート状高密度紙基材は連続したもので出来
ている為、プリプレグも所定長さに切断後連続し
て段積みされる。積層板の製造時に、この段積み
されたプリプレグは作業の都合上段積みされた順
に所定枚数積み重ねて加熱加圧されるのが通例と
なつている。この場合、プリプレグは、シート状
高密度紙基材の製造時の巾方向、表裏の抄造ムラ
や塗工時の樹脂含浸ムラが存在する。これらムラ
が連続的に発生する傾向がある為、所定枚数積み
重ねて製造された積層板に於て、歪が増幅されて
現われ、打抜き加工時の加熱等により更にねじれ
は増大する傾向がある。 Conventionally, in order to reduce warpage, the above-mentioned laminates are manufactured by cutting prepregs prepared by impregnating and drying a sheet-like high-density paper base material with a phenol resin into a predetermined length, and stacking a predetermined number of sheets. Since the sheet-like high-density paper base material used at this time is made of a continuous material, the prepreg is also stacked continuously after being cut to a predetermined length. When producing a laminate, for convenience of work, it is customary to stack a predetermined number of stacked prepregs in the order in which they were stacked and heat and press them. In this case, the prepreg has unevenness in papermaking in the width direction and on the front and back sides during production of the sheet-like high-density paper base material, and unevenness in resin impregnation during coating. Since these irregularities tend to occur continuously, distortion tends to be amplified in a laminate manufactured by stacking a predetermined number of sheets, and the distortion tends to increase further due to heating during punching, etc.
本発明は、前記問題点を解決する為に鋭意研究
した結果、積層板としての諸特性を損うことなく
特にねじれの発生を抑えた積層板を提供するに至
つたものである。 The present invention has been made as a result of extensive research aimed at solving the above-mentioned problems, and has resulted in the provision of a laminate that particularly suppresses the occurrence of twisting without impairing the various properties of the laminate.
本発明の方法は、例えば油変性のフエノール樹
脂をシート状紙基材に含浸乾燥したプリプレグを
所定長さに切断して積み重ねたものを、表裏を同
一向きにして重ねた２枚を１組とし、該組毎の表
裏を交互にして積み重ねて加熱加圧成形する事を
特徴とする積層板の製造法である。これにより、
プリプレグのロツトが同一であつても、シート状
紙基材の抄造時の巾方向、表裏のムラ及び樹脂の
塗りムラを相殺し均一性のある積層板が得らえ
る。従来法に於ては、シート状紙基材の抄造ム
ラ、樹脂の塗りムラが重なり合い積層板とした時
に歪が残るわけである。 In the method of the present invention, for example, a sheet-like paper base material is impregnated with an oil-modified phenolic resin and dried prepreg is cut into a predetermined length and stacked, and two sheets are stacked with the front and back facing the same direction. , is a method for manufacturing a laminate, characterized in that each set is stacked with the front and back sides alternately and then heated and press-molded. This results in
Even if the prepreg lots are the same, a laminate with uniformity can be obtained by canceling out unevenness in the width direction, front and back sides, and uneven resin coating during sheet paper manufacturing. In the conventional method, the unevenness in the papermaking of the sheet-like paper base material and the unevenness in the coating of the resin overlap, and distortion remains when the laminate is made into a laminate.
実施例 １
高密度クラフト紙（140ｇ／m2）に桐油変性フ
エノール樹脂を45〜47％含浸乾燥したプリプレグ
を1055×1055mmに切断し、表裏を同一の向きにし
て重ねた２枚を１組とし、その２組の表裏を交互
にして計４枚重ね、170℃−80Kg／cm2で60分間加
熱、加圧成形し、0.8mm厚の銅張り積層板を得た
（発明品１と称す）。Example 1 High-density kraft paper (140 g/m 2 ) impregnated with 45 to 47% tung oil-modified phenolic resin and dried prepreg was cut into 1055 x 1055 mm pieces and stacked with the front and back sides in the same direction to form a set. A total of 4 sheets of the two sets were stacked with the front and back sides alternated, and heated and pressure-molded at 170°C for 60 minutes at 80 kg/cm 2 to obtain a copper-clad laminate with a thickness of 0.8 mm (referred to as Invention Product 1). .
実施例 ２
実施例１と同様にして得たプリプレグを、４組
の表裏を交互にして計８枚積み重ね、170℃−80
Kg／cm2で60分間加熱、加圧成形し1.6mm厚の銅張
り積層板を得た（発明品２と称す）。Example 2 A total of 8 sheets of prepreg obtained in the same manner as in Example 1 were stacked in 4 sets with the front and back sides alternated, and heated at 170°C - 80°C.
The product was heated and pressure-molded at Kg/cm 2 for 60 minutes to obtain a copper-clad laminate with a thickness of 1.6 mm (referred to as Invention Product 2).
従来例 １
実施例１と同様にして得たプリプレグを同一の
向きでそのまま（裏返さない）で４枚積み重ね、
170℃−80Kg／cm2で60分間加熱加圧成形し0.8mm厚
の銅張り積層板を得た（従来品１と称す）。Conventional Example 1 Four prepregs obtained in the same manner as in Example 1 were stacked in the same direction (without turning over),
A copper-clad laminate with a thickness of 0.8 mm was obtained by heat-pressing molding at 170° C. and 80 kg/cm 2 for 60 minutes (referred to as conventional product 1).
実施例 ２
実施例１と同様にして得たプリプレグを同一の
向きでそのまま（裏返さない）で８枚積み重ね、
170℃−80Kg／cm2で60分間加熱加圧成形し1.6mm厚
の銅張り積層板を得た（従来品２と称す）。Example 2 8 prepregs obtained in the same manner as in Example 1 were stacked in the same direction (without turning over),
A copper-clad laminate with a thickness of 1.6 mm was obtained by heat-pressing molding at 170° C. and 80 kg/cm 2 for 60 minutes (referred to as conventional product 2).
比較例 １
実施例１と同様にして得たプリプレグを、表裏
を同一の向きにして重ねた３枚を１組とするその
２組と、表裏を同一向きにして重ねた２枚を１組
とするその１組とを、表裏を交互にして計８枚積
み重ね、170℃−80Kg／cm2で60分間加熱加圧成形
し1.6mm厚の銅張り積層板を得た（比較品１を称
す）。Comparative Example 1 Two sets of three sheets of prepreg obtained in the same manner as in Example 1 were stacked with the front and back facing the same direction, and one set of two sheets were stacked with the front and back facing the same direction. A total of 8 sheets were stacked with the front and back sides alternated, and heated and pressure molded at 170°C - 80 kg/cm 2 for 60 minutes to obtain a 1.6 mm thick copper-clad laminate (referred to as Comparative Product 1). .
比較品２
実施例１と同様にして得たプリプレグを、１枚
づつの表裏を交互にして計８枚積み重ね、170℃
−80Kg／cm2で60分間加熱加圧成形し1.6mm厚の銅
張り積層板を得た（比較品２と称す）。Comparative product 2 A total of 8 prepregs obtained in the same manner as in Example 1 were stacked one on top of the other with the front and back sides alternated, and heated at 170°C.
A copper-clad laminate with a thickness of 1.6 mm was obtained by heat-pressing molding at −80 Kg/cm 2 for 60 minutes (referred to as comparative product 2).
第１表に各積層板のねじれ試験結果を示す。試
験片は、200×300mmに打抜き加工したもので（残
銅率約50％）であり、打抜き加工後と160℃−30
分間の加熱後のねじれを測定した。測定値は、反
つている試料片の凸面を上にして平な台上に置
き、四隅をそれぞれ押さえたときの対角線の隅の
浮き上り量の最大値である。 Table 1 shows the torsion test results for each laminate. The test piece was punched to a size of 200 x 300 mm (remaining copper ratio approximately 50%), and was heated at 160℃-30 after punching.
The tortuosity was measured after heating for minutes. The measured value is the maximum amount of lift at the diagonal corners when a warped sample piece is placed on a flat table with the convex side facing up and each of the four corners is pressed.
■■■ 亀の甲 ［0003］ ■■■
第１表の結果より明らかな様に、本発明品に於
てはねじれがなく従来品に比べ非常に良好な銅張
り積層板が得られた。又比較品１、２の様に１枚
づつの表裏を交互に、或は３枚づつの表裏を交互
にして成形したものでもねじれが発生することが
わかつた。■■■ Tortoise Shell [0003] ■■■ As is clear from the results in Table 1, the product of the present invention was free from twisting and was much better than the conventional product. It was also found that twisting occurred even when molding was performed by alternating the front and back sides of one sheet at a time, or by alternating the front and back sides of three sheets at a time, as in Comparative Products 1 and 2.
以上の様に一般的に連続して製造されるシート
状基材は流れる方向に密度分布がバラつく傾斜
（ムラ）を有し、これらを切断順に一方向に積み
重ねた積層板はこの傾向が更に増幅される。特
に、高密度紙基材（坪量140ｇ／m2）に於ては、
単に１枚づつの表裏を交互に構成するだけではね
じれは完全に除去できない事が判明した。これは
基材の表裏バランスが大きく影響すると推察さ
れ、表裏を同一の向きにした２枚を１組とし、該
組毎の表裏を交互に積み重ねて成形する事により
初めてねじれのない積層板を提供するものであ
り、その工業的価値は極めて大である。 As mentioned above, sheet-like base materials that are generally manufactured continuously have a slope (unevenness) in which the density distribution varies in the flow direction, and laminates made by stacking these materials in one direction in the order of cutting have this tendency even more. amplified. Especially for high-density paper base material (basis weight 140g/m 2 ),
It has been found that twisting cannot be completely removed simply by alternating the front and back sides of each sheet. It is assumed that this is largely influenced by the balance between the front and back sides of the base material, and by forming a set of two sheets with the front and back sides facing the same direction and stacking the front and back sides of each set alternately, a laminate without twisting can be achieved for the first time. Therefore, its industrial value is extremely large.
Claims (1)
含浸乾燥したプリプレグを所定長さに切断しその
所定枚数を積み重ねて加熱加圧する積層板の製造
法に於て、所定長さに切断して積み重ねるプリプ
レグを表裏を同一にして重ねた２枚を１組とし該
組毎の表裏を交互にして積み重ねて加熱加圧成形
する事を特徴とする積層板の製造法。1 In the manufacturing method of laminates, in which a continuous sheet-like paper base material is impregnated with phenolic resin and dried, prepreg is cut into predetermined lengths, and a predetermined number of sheets are stacked and heated and pressed, prepreg is cut into predetermined lengths and stacked. A method for manufacturing a laminate, characterized in that two sheets are stacked with the same front and back sides to form a set, and each set is stacked with the front and back sides alternately and heated and press-molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59030093A JPS60174638A (en) | 1984-02-20 | 1984-02-20 | Manufacture of laminated board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59030093A JPS60174638A (en) | 1984-02-20 | 1984-02-20 | Manufacture of laminated board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60174638A JPS60174638A (en) | 1985-09-07 |
| JPH0342573B2 true JPH0342573B2 (en) | 1991-06-27 |
Family
ID=12294163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59030093A Granted JPS60174638A (en) | 1984-02-20 | 1984-02-20 | Manufacture of laminated board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60174638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315364A (en) * | 2013-05-08 | 2013-09-25 | 南京年吉冷冻食品有限公司 | Efficient composite food preservative compounding method |
-
1984
- 1984-02-20 JP JP59030093A patent/JPS60174638A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103315364A (en) * | 2013-05-08 | 2013-09-25 | 南京年吉冷冻食品有限公司 | Efficient composite food preservative compounding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60174638A (en) | 1985-09-07 |
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