JP2598075B2 - Glass ceramic seal - Google Patents
Glass ceramic sealInfo
- Publication number
- JP2598075B2 JP2598075B2 JP63080105A JP8010588A JP2598075B2 JP 2598075 B2 JP2598075 B2 JP 2598075B2 JP 63080105 A JP63080105 A JP 63080105A JP 8010588 A JP8010588 A JP 8010588A JP 2598075 B2 JP2598075 B2 JP 2598075B2
- Authority
- JP
- Japan
- Prior art keywords
- seal
- glass
- glass ceramic
- ceramics
- ceramic
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0036—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and a divalent metal oxide as main constituents
- C03C10/0045—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing SiO2, Al2O3 and a divalent metal oxide as main constituents containing SiO2, Al2O3 and MgO as main constituents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は印鑑に関するもので、特に不燃性，耐摩耗
性にすぐれたガラスセラミックス製印鑑に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal, and more particularly to a glass ceramic seal having excellent nonflammability and abrasion resistance.
［従来の技術］ 従来より印鑑はつげ，こくたん等の木材や、象牙，水
牛等の動物性素材、水晶，めのう等の石材、プラスチッ
クス等の合成樹脂でつくられている。[Prior Art] Conventionally, seals are made of wood such as boxwood and kokutan, animal materials such as ivory and buffalo, stones such as quartz and agate, and synthetic resins such as plastics.
しかしながら、これらの印鑑では火災の際に焼失した
り、誤って落としたときに印章部が欠けたり、ひびわれ
したり、長期使用によって摩耗又は変形して印影が不鮮
明になる等いろいろな問題がある。However, these seals have various problems such as burning out in the event of a fire, chipping or cracking of the seal when accidentally dropped, and wear or deformation due to long-term use, making the seal imprint unclear.
そこで、このような問題を解決するものとして、実開
昭51−121620号公報には不燃性，耐摩耗性を有するアル
ミナ，アルミナ・ムライト，又は、チタニアセラミック
スからなる印鑑が開示されている。In order to solve such a problem, Japanese Utility Model Laid-Open Publication No. Sho 51-121620 discloses a seal made of nonflammable, wear-resistant alumina, alumina mullite, or titania ceramics.
しかし、アルミナ等のセラミックスでは耐衝撃性，耐
摩耗性がそれほど高くないので、耐衝撃性，耐摩耗性を
向上させるものとして、窒化けい素やジルコニア等のセ
ラミックスで形成した印鑑が特開昭60−131861,61−971
64,61−152482号公報等に開示されている。However, since ceramics such as alumina do not have high impact resistance and wear resistance, a seal made of ceramics such as silicon nitride and zirconia has been proposed as a seal to improve the impact resistance and wear resistance. −131861,61−971
No. 64,61-152482.
［発明が解決しようとする問題点］ しかし、上記従来例に記載されているアルミナ，窒化
けい素，ジルコニア系，等のセラミックスでは、耐衝撃
性，耐摩耗性は向上するのであるが、印影を刻印すると
き、及び、熱衝撃性の点において、次のような問題があ
る。[Problems to be Solved by the Invention] However, in the ceramics such as alumina, silicon nitride, and zirconia described in the above-mentioned conventional example, the impact resistance and wear resistance are improved, There are the following problems when engraving and in terms of thermal shock resistance.
まず、印影を刻印するときの問題としては、例えば、
セラミックスを焼結する前に刻印する場合では、その刻
印方法として、セラミックス粉末をラバープレス法等に
より成型後、切削により刻印するものが示されている。First, as a problem when engraving a seal, for example,
In the case of engraving before sintering ceramics, as a method of engraving, a method is described in which ceramic powder is molded by a rubber press method or the like and then engraved by cutting.
しかし、このように焼結前に刻印する場合には、刻印
時のセラミックスの状態が軟らかいので、刻印はしやす
いが、刻印時に字崩れが発生したり、又、焼結時に字が
収縮するので字の細部が不鮮明になり、印影に要求され
る微妙な特徴がでにくくなり、印鑑には適さない。However, in the case of engraving before sintering in this way, it is easy to engrave because the state of the ceramic at the time of engraving is soft, but character collapse occurs at the time of engraving, and the character shrinks during sintering. The details of the characters are blurred, and the delicate features required for the seal are less likely to appear, making the seal unsuitable.
さらに、セラミックスを焼結後、刻印する場合には、
焼結後の上記セラミックスは硬いため、彫刀を用いた切
削による刻印は難しく、サンドブラスト法，グリッドブ
ラスト法，液体ホーニング法，ウォータージェット法，
レーザービーム法等の特殊な方法で刻印しなければなら
ず、刻印のための時間，費用等が多くかかるという問題
がある。Furthermore, when stamping after sintering ceramics,
Since the above ceramics after sintering are hard, engraving by cutting with a chisel is difficult, and sand blasting, grid blasting, liquid honing, water jet,
The engraving must be performed by a special method such as a laser beam method, and there is a problem that it takes much time and cost for the engraving.
又、上記のセラミックスは、熱衝撃に弱く、急熱急冷
により欠損しやすい。そのため、火災等で高温に熱せら
れた後に水をかけられた時などこのセラミックスで作ら
れた印鑑は破損してしまう。Further, the above-mentioned ceramics are vulnerable to thermal shock and are liable to be broken by rapid thermal quenching. For this reason, a seal made of this ceramic may be damaged, for example, when it is heated to a high temperature by a fire or the like and then watered.
さらに、上記のセラミックス材料では、各主成分によ
り色が決まってしまい、濃淡等の色調の変化しかでき
ず、他の色に着色して、好みの色にすることはできな
い。Furthermore, in the above-mentioned ceramic material, the color is determined by each main component, and only the color tone such as shading can be changed, and it cannot be colored to another color to obtain a desired color.
そこで、この発明は、上記のような問題点を解決する
ために、耐熱性，耐摩耗性にすぐれるだけでなく、耐熱
衝撃性にもすぐれるとともに、刻印が容易で細部まで正
確ではっきりした印影を得ることができるガラスセラミ
ックス製印鑑を提供することを目的とする。In order to solve the above-mentioned problems, the present invention is excellent not only in heat resistance and abrasion resistance, but also in thermal shock resistance, and is easy to engrave, so that the details are accurate and clear. An object of the present invention is to provide a glass-ceramic seal that can obtain a seal.
さらに、この発明は、印鑑に適した好みの色に着色す
ることができるガラスセラミックス製印鑑を提供するこ
とを目的とする。Another object of the present invention is to provide a glass-ceramic seal that can be colored in a desired color suitable for the seal.
［問題点を解決するための手段及び作用］ 上記目的を達成するために、この発明は、少なくとも
印章部、つまり印影が刻印される面を含む部分を、ガラ
スセラミックスで構成した印鑑としたものである。ここ
で、ガラスセラミックスとは、ガラス全体を失透させて
微結晶の集合体とした、いわゆる結晶化ガラス（デビド
ロセラミックス）だけを示すものではなく、ガラスとセ
ラミックスとが混在しているような状態、つまり、結晶
質と非結晶質とが混在しているような状態も含んでい
る。[Means and Actions for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a seal having at least a seal portion, that is, a portion including a surface on which a seal is imprinted, made of glass ceramic. is there. Here, the term “glass ceramics” means not only what is called crystallized glass (debidro ceramics), which is an aggregate of microcrystals obtained by devitrifying the entire glass, but also a mixture of glass and ceramics. It also includes a state, that is, a state in which crystalline and non-crystalline are mixed.
このように、ガラスセラミックスで印鑑を構成したこ
とにより、耐熱性，耐摩耗性ばかりでなく、耐熱衝撃性
も向上したものとなる。As described above, the seal made of glass ceramic improves not only heat resistance and wear resistance but also thermal shock resistance.
また、上記ガラスセラミックスをマイカ結晶及びβ−
スポジゥメン結晶が析出したものとすることにより、切
削性を向上させることができ、刻印が容易になる。Further, the above glass ceramics were converted to mica crystal and β-
By making the spherodene crystal precipitated, the machinability can be improved and the engraving becomes easy.
また、上記ガラスセラミックスをSiO2,MgO,Al2O3,Li2
O,Na2O,ZnO,F,ZrO2,を主成分として含有し、着色材とし
てFe2O3,Ag2O,NiO,CeO2,MnO2,TiO2,CoOの中から選択し
たものを含ませることにより、簡単に印鑑に適した好み
の色に着色することができる。Further, the above glass ceramics are made of SiO 2 , MgO, Al 2 O 3 , Li 2
Containing O, Na 2 O, ZnO, F, ZrO 2 as the main component and selected from Fe 2 O 3 , Ag 2 O, NiO, CeO 2 , MnO 2 , TiO 2 , CoO as colorant , It can be easily colored in a desired color suitable for a seal.
［実施例］ 以下、実施例によりこの発明を説明する。EXAMPLES Hereinafter, the present invention will be described with reference to examples.
まず、この発明の第１実施例として、SiO2（40〜50mo
l％）,Al2O3（10〜15mol％）,MgO（20〜25mol％）,Li2O
（６〜10mol％）,Na2O（５〜10mol％）,ZnO（２〜4mol
％）,F（５〜10mol％），そして、ZrO2（2mol％）の粉
末をガラスセラミックスの主成分として上記の組成比で
加え、さらに、着色材として、Fe2O3,Ag2O,NiO,CeO2,Ti
O2を加えて、計100mol％にしたものを十分に粉砕混合す
る。この混合粉末を1450℃で１時間溶融し、任意の型、
例えば円柱状の印鑑の形に、流しだして素材を得る。こ
の素材を型から取出した後に、電気炉内に配置して750
℃まで１時間で昇温し、この750℃の温度で２時間保持
した後、920℃まで１時間で昇温させて熱処理結晶化さ
せて、ガラスセラミックスとした。First, as a first embodiment of the present invention, SiO 2 (40 to 50
l%), Al 2 O 3 (10~15mol%), MgO (20~25mol%), Li 2 O
(6~10mol%), Na 2 O (5~10mol%), ZnO (2~4mol
%), F (5 to 10 mol%), and ZrO 2 (2 mol%) powder as the main components of the glass ceramic at the above composition ratio, and further as Fe 2 O 3 , Ag 2 O, NiO, CeO 2 , Ti
O 2 is added to make a total of 100 mol%, and the mixture is sufficiently pulverized and mixed. This mixed powder is melted at 1450 ° C for 1 hour,
For example, the material is obtained by pouring into a cylindrical seal. After removing this material from the mold, place it in an electric furnace
The temperature was raised to ℃ for 1 hour, and the temperature was maintained at 750 ° C. for 2 hours. Then, the temperature was raised to 920 ° C. for 1 hour to crystallize by heat treatment to obtain a glass ceramic.
このとき、このガラスセラミックスをＸ線回折法によ
り結晶構造を調べたところ、マイカ結晶及びβ−スポジ
ゥメン結晶が析出していることが認められた。At this time, when the crystal structure of the glass ceramic was examined by an X-ray diffraction method, it was confirmed that mica crystals and β-spodipene crystals were precipitated.
このガラスセラミックスをバレル研磨機にてバレル研
磨仕上げし、両端面を鏡面研磨仕上げした後、この鏡面
研磨仕上げした面に彫刀で文字を刻印する。This glass ceramic is barrel-polished with a barrel grinder, and both end faces are mirror-polished, and then a character is engraved on the mirror-polished surface with a chisel.
この様にして、刻印されたガラスセラミックス製印鑑
の耐熱性を調べるため、1000℃の加熱を10時間加えたが
形状等に変化は認められなかった。In order to examine the heat resistance of the stamped glass-ceramic seal in this way, heating at 1000 ° C. was applied for 10 hours, but no change was observed in the shape and the like.
また、耐衝撃性については、上記ガラスセラミックス
製印鑑を1mの高さからコンクリート上に自然落下させて
も欠けや割れを生じなかった。Regarding impact resistance, the glass ceramic seal was not dropped or cracked even when dropped naturally on concrete from a height of 1 m.
また、耐熱衝撃性を比較するために、上記ガラスセラ
ミックス製印鑑とY2O3を含むジルコニアセラミックスに
対し、それぞれ、600℃に加熱してから室温まで急冷し
たときに、ジルコニアセラミックスは破損したり亀裂が
生じたりしたが、この実施例のガラスセラミックスで
は、破損や亀裂は認められなかった。In addition, in order to compare the thermal shock resistance, the zirconia ceramics and the zirconia ceramics containing Y 2 O 3 were broken down when heated to 600 ° C. and rapidly cooled to room temperature, respectively. Although cracks occurred, no breakage or cracks were observed in the glass ceramics of this example.
さらに、上記着色材を加えたことにより、この実施例
のガラスセラミックス製印鑑は綺麗な象牙色を呈してお
り、印鑑として適した色になっている。Further, by adding the above coloring material, the glass-ceramic seal of this embodiment has a beautiful ivory color, which is a color suitable for a seal.
次に、この発明の第２実施例について説明する。 Next, a second embodiment of the present invention will be described.
上記第１実施例に示したガラスセラミックスの原料
に、さらに、着色材として、MnO2とFe2O3を添加したも
のであり、その後の熱処理結晶化の際の焼結条件等は、
第１実施例と同様である。MnO 2 and Fe 2 O 3 are further added as coloring materials to the glass ceramic raw material shown in the first embodiment, and the sintering conditions and the like during the subsequent heat treatment crystallization are as follows:
This is the same as the first embodiment.
この実施例では、上記着色材を添加したことにより、
第１実施例と異なり黒色系のガラスセラミックス印鑑が
得られた。In this example, by adding the coloring material,
Unlike the first embodiment, a black glass-ceramic seal was obtained.
また、耐熱性、耐衝撃性、耐熱衝撃性等の性質につい
ては第１実施例とほぼ同様の特性が得られた。Further, with respect to properties such as heat resistance, impact resistance, and thermal shock resistance, almost the same characteristics as those of the first embodiment were obtained.
次に、この発明の第３実施例について説明する。 Next, a third embodiment of the present invention will be described.
上記第１実施例に示したガラスセラミックスの原料の
うち、Al2O3の量を若干量増やして、焼結後のガラスセ
ラミックス中に脈理（層状の縞模様）が多く発生させた
ものである。Of the glass ceramic raw materials shown in the first embodiment, the amount of Al 2 O 3 was slightly increased to generate a large amount of striae (layered stripe pattern) in the sintered glass ceramic. is there.
この様にして、得られたガラスセラミックス製印鑑は
脈理を有し、その外観は天然の象牙に酷似し、密度も天
然の象牙とほぼ同じ値が得られた。In this way, the obtained glass-ceramic seal had striae, and its appearance was very similar to natural ivory, and the density was almost the same as that of natural ivory.
また、耐熱性、耐衝撃性、耐熱衝撃性等の性質につい
ても上記第１実施例とほぼ同様の特性が得られた。In addition, properties similar to those of the first embodiment were obtained with respect to properties such as heat resistance, impact resistance, and thermal shock resistance.
［発明の効果］ 以上説明したようにこの発明は、少なくとも印章部を
ガラスセラミックスで構成した印鑑としたことにより、
耐熱性，耐摩耗性ばかりでなく、耐熱衝撃性も向上した
ものとなる。[Effect of the Invention] As described above, the present invention provides a seal having at least a seal portion made of glass ceramic,
Not only heat resistance and wear resistance but also thermal shock resistance are improved.
また、上記ガラスセラミックスをマイカ結晶及びβ−
スポジゥメン結晶が析出したものとすることにより、切
削性を向上させることができ、刻印が容易になる。Further, the above glass ceramics were converted to mica crystal and β-
By making the spherodene crystal precipitated, the machinability can be improved and the engraving becomes easy.
また、上記ガラスセラミックスをSiO2,Al2O3,MgO,Li2
O,Na2O,ZnO,F,ZrO2,を主成分として含有し、着色材とし
てFe2O3,Ag2O,NiO,CeO2,MnO2,TiO2,CoOの中から選択し
たものを含ませることにより、簡単に好みの色に着色す
ることができる。Further, the above glass ceramics are made of SiO 2 , Al 2 O 3 , MgO, Li 2
Containing O, Na 2 O, ZnO, F, ZrO 2 as the main component and selected from Fe 2 O 3 , Ag 2 O, NiO, CeO 2 , MnO 2 , TiO 2 , CoO as colorant , It can be easily colored to a desired color.
このように、この発明によるガラスセラミックス製印
鑑は、従来のアルミナ，ジルコニア等のセラミックスか
らなる印鑑に比べて、同程度の耐熱性，耐衝撃性を有す
るだけでなく、耐熱衝撃性は、向上したものとなるの
で、火災等で急熱急冷による熱衝撃が加わっても破損さ
れないものとなる。As described above, the seal stamp made of glass ceramic according to the present invention not only has the same degree of heat resistance and impact resistance, but also has improved thermal shock resistance, as compared with conventional seal stamps made of ceramics such as alumina and zirconia. Therefore, even if a thermal shock due to rapid heating and quenching due to a fire or the like is applied, it will not be damaged.
また、刻印が容易になり細部まで正確な印影が得られ
るとともに、好みの色に着色することができるガラスセ
ラミックス製印鑑を提供することができる。In addition, it is possible to provide a glass-ceramic seal that can be easily engraved, can obtain an accurate imprint in detail, and can be colored in a desired color.
Claims (3)
構成したことを特徴とするガラスセラミックス製印鑑。1. A seal stamp made of glass ceramic, wherein at least a seal portion is made of glass ceramic.
β−スポジゥメン結晶が析出したガラスセラミックスで
あることを特徴とする請求項１記載のガラスセラミック
ス製印鑑。2. The seal according to claim 1, wherein the glass ceramic is glass ceramic on which mica crystal and β-spodene crystal are precipitated.
2O3,Li2O,Na2O,ZnO,F,ZrO2,を主成分として含有し、着
色材としてFe2O3,Ag2O,NiO,CeO2,MnO2,TiO2,CoOの中か
ら選択したものを含んでいることを特徴とする請求項１
又は２記載のガラスセラミックス製印鑑。3. The glass ceramic is made of SiO 2 , MgO, Al.
Contains 2 O 3 , Li 2 O, Na 2 O, ZnO, F, ZrO 2 , as a main component, and Fe 2 O 3 , Ag 2 O, NiO, CeO 2 , MnO 2 , TiO 2 , CoO as a coloring material 2. The method according to claim 1, wherein the information includes one selected from the following.
Or the seal made of glass ceramics described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63080105A JP2598075B2 (en) | 1988-03-31 | 1988-03-31 | Glass ceramic seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63080105A JP2598075B2 (en) | 1988-03-31 | 1988-03-31 | Glass ceramic seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01252550A JPH01252550A (en) | 1989-10-09 |
| JP2598075B2 true JP2598075B2 (en) | 1997-04-09 |
Family
ID=13708903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63080105A Expired - Lifetime JP2598075B2 (en) | 1988-03-31 | 1988-03-31 | Glass ceramic seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2598075B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03240583A (en) * | 1990-02-19 | 1991-10-25 | Shinagawa Refract Co Ltd | Seal |
| JPH0447559U (en) * | 1990-08-28 | 1992-04-22 | ||
| JP4970992B2 (en) * | 2007-03-14 | 2012-07-11 | 株式会社シカタ | Manufacturing method of seal |
-
1988
- 1988-03-31 JP JP63080105A patent/JP2598075B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01252550A (en) | 1989-10-09 |
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