JPS63282151A - Expanded graphite sheet - Google Patents
Expanded graphite sheetInfo
- Publication number
- JPS63282151A JPS63282151A JP11622387A JP11622387A JPS63282151A JP S63282151 A JPS63282151 A JP S63282151A JP 11622387 A JP11622387 A JP 11622387A JP 11622387 A JP11622387 A JP 11622387A JP S63282151 A JPS63282151 A JP S63282151A
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb
- expanded graphite
- sheet
- graphite sheet
- shaped
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 27
- 239000010439 graphite Substances 0.000 title claims abstract description 27
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 6
- 238000012856 packing Methods 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- -1 corrosion resistance Chemical compound 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はパツキンやガスケットの素材として用いられる
膨張黒鉛シー）Ｋ関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to expanded graphite sheet K used as a material for packings and gaskets.
（従来の技術）
膨張黒鉛シートは黒鉛層間化合物を高温で加熱膨張させ
た膨張黒鉛を圧縮成形する事により得られ、可撓性、耐
熱性、耐食性などの特性を有する事が知られている。こ
のシートを所望の形状に打ち抜く事によりガスケットや
パツキンが得られる。(Prior Art) Expanded graphite sheets are obtained by compression molding expanded graphite obtained by heating and expanding graphite intercalation compounds at high temperatures, and are known to have properties such as flexibility, heat resistance, and corrosion resistance. Gaskets and packings can be obtained by punching out this sheet into a desired shape.
（発明が解決しようとする問題Ａ）
膨張黒鉛シートは嵩密度が０．８〜１．７ｇ／ｃｍ”に
圧縮成形されたものでガスケットやパツキンの素材とな
るが、ジヨイントシートなどのシール素材に比べ脆いた
め、取り扱いが不便で、また打ち抜く際や引張られた場
合に破断する危険性があった。(Problem A to be solved by the invention) Expanded graphite sheets are compression-molded to a bulk density of 0.8 to 1.7 g/cm and are used as materials for gaskets and packings, but they are also used as sealing materials such as joint sheets. Because it is more brittle than other materials, it is inconvenient to handle, and there is a risk of it breaking when punched or stretched.
そのため強度を必要とする条件で使われる場合はフック
を有する金属板などに膨張黒鉛シートをラミネートし、
補強して使用していたが、これらの加工は面倒であり、
また素材が黒鉛単体でないため、黒鉛の有する耐食性等
の特性を十分生かしきれなくなってしまう欠点がある。Therefore, when used under conditions that require strength, an expanded graphite sheet is laminated to a metal plate with hooks, etc.
It was used with reinforcement, but these processes were troublesome,
Furthermore, since the material is not graphite alone, there is a drawback that the characteristics of graphite, such as corrosion resistance, cannot be fully utilized.
本発明は前記した補強材を用いず九強度の向上した膨張
黒鉛シートを提供することを目的とする。An object of the present invention is to provide an expanded graphite sheet with improved strength without using the above-mentioned reinforcing material.
（問題点を解決するための手段）
本発明はハニカム状の模様を連設してなる膨張黒鉛シー
トに関する。(Means for Solving the Problems) The present invention relates to an expanded graphite sheet having honeycomb-like patterns arranged in series.
本発明の膨張黒鉛シートは膨張黒鉛粒子を二段階成形す
ることによって達成される。第１段目の成形は９例えば
圧縮プレスに装着された雌型に膨張黒鉛粒子を入れハニ
カム状の凹凸を有する雄型で圧縮成形し、第２図に示す
ようなハニカム状の凸部１を有する成形体を得る。この
ハニカム状の凸部は反対側の面の同じ付量に形成しても
よい。The expanded graphite sheet of the present invention is achieved by two-step molding of expanded graphite particles. In the first stage of molding, for example, expanded graphite particles are put into a female mold installed in a compression press and compression molded with a male mold having honeycomb-like unevenness, forming honeycomb-like protrusions 1 as shown in Fig. 2. A molded article having the following properties is obtained. This honeycomb-shaped convex portion may be formed in the same amount on the opposite side.
次にこの成形体を今度は加圧面が千百の雄型で圧縮成形
する。ロールで圧延する等の手段により第１図に示すよ
うな平板の面にハニカム状の模様を有する膨張黒鉛シー
トを得る。これによりハニカム状の部分が高密度となり
、シートの強度が向上する。使用する膨張黒鉛の粒子は
特に制限はない。Next, this molded body is compression molded using a male die with a pressure surface of 1,000. An expanded graphite sheet having a honeycomb-like pattern on a flat plate surface as shown in FIG. 1 is obtained by means such as rolling with a roll. This increases the density of the honeycomb-shaped portion and improves the strength of the sheet. There are no particular restrictions on the expanded graphite particles used.
・・ニカム状の模様の大きさは９例えば第３図及び好着
しい。またハニカム部以外の部分の嵩密度は０．６〜１
．４ ｇ／ｃｍ” ８度、ハニカム部の嵩密度は更にそ
の５〜２０％増とすることが好ましい。...The size of the nikum-like pattern is preferably 9, for example, as shown in Figure 3. In addition, the bulk density of the parts other than the honeycomb part is 0.6 to 1.
．． It is preferable that the bulk density of the honeycomb portion is further increased by 5 to 20%.
（実施例） 次に本発明の詳細な説明する。(Example) Next, the present invention will be explained in detail.
膨張黒鉛粒子（日立化成工業製、ＨＧＰ２０７）を圧縮
プレスの成型金型（雌型）に入れ、加圧面にハニカム模
様の凹凸を設けた上型により圧縮成形し、第２図に示す
ように基材部２の厚さが０．７皿、ハニカム状の凸部１
を含む全体の厚さが０．８５−９嵩密度が０．７ｇ／ａ
ｍ”の成形体を得た。次にこの成形体をロール掛けして
厚さが０．５±０．０５ ａｍ＋１幅１０ｍｍ５長さ９
０−の第１図に示す膨張黒鉛シートを得た。このシート
のハニカム部３の幅ａは１．５ａｔｍｓ ピッチｂは４
ｍｍで、嵩密度（ｇ／ｃｍ” ）はハニカム部３が１．
２．ハニカム部以外の部分４が１．０．引張強さが４
！３ ｋｇ／ｃｍ″であった。Expanded graphite particles (manufactured by Hitachi Chemical Co., Ltd., HGP207) were put into a mold (female mold) of a compression press, and compression molded using an upper mold with a honeycomb pattern unevenness on the pressing surface. The thickness of the material part 2 is 0.7 plate, and the honeycomb-shaped convex part 1
Total thickness including 0.85-9 Bulk density 0.7g/a
A molded body with a diameter of 10 mm was obtained. Next, this molded body was rolled to a thickness of 0.5 ± 0.05 am + 1 width 10 mm 5 length 9
An expanded graphite sheet shown in FIG. 1 of 0- was obtained. The width a of the honeycomb portion 3 of this sheet is 1.5 atms, and the pitch b is 4
mm, and the bulk density (g/cm") of the honeycomb portion 3 is 1.
2. The portion 4 other than the honeycomb portion is 1.0. Tensile strength is 4
! 3 kg/cm''.
比較例として、同じ膨張黒鉛粒子を用い、ロール掛けに
より嵩密度１．０ ｇ／ｃｍ”、厚さＸ幅×長さが０．
５Ｘ１０Ｘ９０（ｗ）の膨張黒鉛シートを成形したとこ
ろ、引張強さは４１Ａ ｋｇ／ｃｍ”であった。As a comparative example, the same expanded graphite particles were rolled to give a bulk density of 1.0 g/cm" and a thickness x width x length of 0.
When a 5 x 10 x 90 (w) expanded graphite sheet was molded, the tensile strength was 41 A kg/cm''.
ので、膨張黒鉛シートの引張強度が約２０４向上し、補
強材なしのガスケット、パツキン等に広く利用すること
ができる。Therefore, the tensile strength of the expanded graphite sheet is improved by about 204%, and it can be widely used in gaskets, packings, etc. without reinforcing materials.
第１図は本発明の実施例になる膨張黒鉛シートの一部切
欠斜面図、第２図は第１図の膨張黒鉛シートの製造法を
示す説明図、第３図及び第４図は本発明の膨張黒鉛シー
トから得られるガスケットの部分平面図を示す。
符号の説明FIG. 1 is a partially cutaway slope view of an expanded graphite sheet according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing a method for manufacturing the expanded graphite sheet of FIG. 1, and FIGS. 3 and 4 are according to the present invention. 1 shows a partial plan view of a gasket obtained from an expanded graphite sheet of FIG. Explanation of symbols
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11622387A JPS63282151A (en) | 1987-05-13 | 1987-05-13 | Expanded graphite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11622387A JPS63282151A (en) | 1987-05-13 | 1987-05-13 | Expanded graphite sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63282151A true JPS63282151A (en) | 1988-11-18 |
Family
ID=14681876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11622387A Pending JPS63282151A (en) | 1987-05-13 | 1987-05-13 | Expanded graphite sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63282151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015508151A (en) * | 2012-02-22 | 2015-03-16 | ツェンダー グループ インターナショナル アーゲー | Radiator |
-
1987
- 1987-05-13 JP JP11622387A patent/JPS63282151A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015508151A (en) * | 2012-02-22 | 2015-03-16 | ツェンダー グループ インターナショナル アーゲー | Radiator |
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