JPH01252550A - Signet made of glass ceramic - Google Patents

Signet made of glass ceramic

Info

Publication number
JPH01252550A
JPH01252550A JP8010588A JP8010588A JPH01252550A JP H01252550 A JPH01252550 A JP H01252550A JP 8010588 A JP8010588 A JP 8010588A JP 8010588 A JP8010588 A JP 8010588A JP H01252550 A JPH01252550 A JP H01252550A
Authority
JP
Japan
Prior art keywords
glass
ceramics
seal
ceramic
glass 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.)
Granted
Application number
JP8010588A
Other languages
Japanese (ja)
Other versions
JP2598075B2 (en
Inventor
Koji Hakamazuka
康治 袴塚
Kazuhiro Watanabe
一博 渡辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP63080105A priority Critical patent/JP2598075B2/en
Publication of JPH01252550A publication Critical patent/JPH01252550A/en
Application granted granted Critical
Publication of JP2598075B2 publication Critical patent/JP2598075B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C10/00Devitrified 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
    • C03C10/0036Devitrified 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
    • C03C10/0045Devitrified 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)

Abstract

PURPOSE:To obtain the title signet improved in heat and wear resistances and cuttability, by constructing its stamping part with a glass ceramic of specified components in which mica crystal and beta-spodumene crystal have been separated out. CONSTITUTION:The objective signet is such that its stamping part is formed with a glass ceramic in which mica crystal and beta-spodumene crystal have been separated out. Said glass ceramic is comprised of SiO2, MgO, Al2O3, Li2O, Na2O, ZnO, F, ZrO2, also containing, as a coloring substance, one or more compounds selected from Fe2O3, Ag2O, NiO, CeO2, MnO2, TiO2 and CoO.

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。[Detailed description of the invention] [Industrial application field] This invention relates to seals, and is particularly nonflammable.

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
This invention relates to a seal made of glass ceramics with excellent abrasion resistance.

〔従来の技術] 従来より印鑑はつげ、ごくたん等の木材や、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] Traditionally, seals have been made of wood such as boxwood and staghorn, animal materials such as ivory and buffalo, stones such as crystal and agate, and synthetic resins such as plastic.

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***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 being destroyed in a fire, being chipped or cracked if accidentally dropped, or becoming worn or deformed after long-term use, making the impression unclear.

そこで、このような問題を解決するものとして、実開昭
51−121820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。
To solve this problem, Japanese Utility Model Application Publication No. 51-121820 discloses a seal made of alumina, alumina-mullite, or titania ceramics, which are nonflammable and wear-resistant.

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。
However, impact resistance and abrasion resistance are not very high with ceramics such as alumina.

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80−1
31881.81−97184.81−152482号
公報等に開示されている。
In 1980-1, a seal made of ceramics such as silicon nitride and zirconia was used to improve wear resistance.
It is disclosed in JP 31881.81-97184.81-152482 and the like.

[発明が解決しようとする問題点コ しかし、上記従来例に記載されているアルミナ。[The problem that the invention aims to solve] However, the alumina described in the above conventional example.

窒化けい素、ジルコニア系1等のセラミックスでは、耐
衝撃性、rliF!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。
Silicon nitride and zirconia type 1 ceramics have impact resistance, rliF! Although the abrasion resistance is improved, there are the following problems when imprinting a seal 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, there is a problem when stamping a seal impression. For example, when stamping is done on ceramics before sintering, the stamping method is to mold ceramic powder using a rubber press method or the like and then stamp it by cutting. ing.

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、刻印時に字部れが発生したり、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, when stamping is performed before sintering in this way, the ceramic is in a soft state at the time of stamping, so it is easy to stamp, but the characters may be distorted during stamping, and the characters may shrink during sintering. As a result, the details of the letters become unclear, making it difficult to show the subtle features required for seal impressions, making it unsuitable for seals.

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、形刃を用いた切削
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。
Furthermore, when engraving ceramics after sintering, since the ceramics are hard after sintering, it is difficult to engrave by cutting with a shaped blade, so sandblasting, grid blasting, and liquid honing methods are used.

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。
The marking must be done using a special method such as a water jet method or a laser beam method, which poses a problem in that it takes a lot of time and cost.

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 susceptible to thermal shock and are easily damaged by rapid heating and cooling. Therefore, seals made of ceramics will be damaged if they are heated to high temperatures due to a fire, etc., and then splashed with water.

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 ceramic materials, the color is determined by each main component, and only the color tone such as shading can be changed.
You cannot color it with another color to make it your favorite 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
ではつ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。
Therefore, in order to solve the above-mentioned problems, this invention not only has excellent heat resistance and abrasion resistance, but also has excellent thermal shock resistance, is easy to engrave, and is accurate to every detail. The purpose of the present invention is to provide a seal made of glass ceramics capable of obtaining a seal impression of a high quality.

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。
A further object of the present invention is to provide a seal stamp made of glass ceramics that can be colored in a desired color suitable for the stamp.

[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***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 effects for solving the problems] In order to achieve the above object, the present invention provides a seal in which at least the seal part, that is, the part including the surface on which the seal impression is engraved, is made of glass ceramics. be. Here, glass ceramics refers not only to so-called crystallized glass (devidro ceramics), which is made by devitrifying the entire glass to form an aggregate of microcrystals, but also to a mixture of glass and ceramics. In other words, it includes a state in which crystalline and non-crystalline substances 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(、耐熱衝撃性も
向上したものとなる。
By constructing the seal from glass ceramics in this way, it not only has improved heat resistance and abrasion 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。
Furthermore, by making the glass ceramics precipitated with mica crystals and β-spodumene crystals, machinability can be improved and marking becomes easier.

また、上記ガラスセラミックスをSio2゜Mg0= 
A120s 、L 120.Na2O。
In addition, the above glass ceramics is Sio2゜Mg0=
A120s, L 120. Na2O.

ZnO,F、ZrO2,を主成分として含有し、着色材
としてFe20s + Agz O,Nto。
Contains ZnO, F, and ZrO2 as main components, and Fe20s + Agz O, Nto as a coloring agent.

ceoz lMnO2,T、i02 、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。
By including a material selected from among ceoz lMnO2,T, i02, and Coo, it is possible to easily color the seal 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。[Example] The present invention will be explained below with reference to Examples.

まず、この発明の第1実施例として、5i02(4(1
〜50mo1%) s A l 20s  (10〜1
511101%)。
First, as a first embodiment of this invention, 5i02(4(1
~50mo1%) s A l 20s (10~1
511101%).

M g O(20〜25mo1%) * L i 20
 (8〜10mo1%)。
M g O (20-25 mo1%) * L i 20
(8-10 mo1%).

N a 20(5〜10mo1%) +  Z n O
(2〜4mo1%)。
N a 20 (5-10 mo1%) + Z n O
(2-4 mo1%).

F(5〜10mo1%)、そして、Zr0z (2mo
1%)の粉末をガラスセラミックスの主成分として上記
の組成比で加丸、さらに、着色材として、Fez Os
 、Ag2O,Nl09CeO2゜TlO2を加几て、
計100[1101%にしたものを十分に粉砕混合する
。この混合粉末を1450°Cで1時間溶融し、任意の
型、例尤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°Cまで1時間で昇温し、この750°C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。
F (5-10mo1%), and Zr0z (2mo
1%) powder in the above composition ratio as the main component of glass ceramics, and Fez Os as a coloring agent.
, Ag2O, Nl09CeO2゜TlO2 is added,
A total of 100 [1101%] was thoroughly ground and mixed. This mixed powder is melted at 1450° C. for 1 hour and poured into an arbitrary shape, for example, a cylindrical stamp shape, to obtain a material. After taking this material out of the mold, it was placed in an electric furnace and heated to 750°C in 1 hour, held at this temperature of 750°C for 2 hours, and then raised to 920°C in 1 hour. It was heat treated and crystallized to produce glass ceramics.

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 this glass ceramic was examined by X-ray diffraction, it was found that mica crystals and β-spodumene 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
磨仕上げした面に形刃で文字を刻印する。
This glass ceramic is barrel-polished using a barrel polishing machine, and both end surfaces are mirror-polished, and characters are engraved on the mirror-polished surfaces using a shaped blade.

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 engraved glass-ceramic seal stamp in this manner, it was heated at 1000° C. for 10 hours, but no change was observed in its shape or 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, even when the glass-ceramic seal was dropped onto concrete from a height of 1 m, no chipping or cracking occurred.

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°C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, when the above-mentioned glass ceramic seal stamp and zirconia ceramic containing Y2O3 were heated to 600°C and rapidly cooled to room temperature, the zirconia ceramic did not break or crack. However, no breakage or cracks were observed in the glass ceramic of this example.

さらに、上記着色材を加元たことにより、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。
Furthermore, by adding the above-mentioned coloring material, the glass-ceramic seal stamp of this example exhibits a beautiful ivory color, which is a color suitable for a seal stamp.

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 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、M n O2とFe2es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。
The raw materials for the glass ceramics shown in the first example above include
Furthermore, M n O2 and Fe2es are added as colorants, and the sintering conditions during the subsequent heat treatment and crystallization are the same as in the first example.

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 above-mentioned coloring material, a black glass-ceramic seal stamp was obtained, unlike the first example.

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。
Furthermore, properties such as heat resistance, impact resistance, and thermal shock resistance were almost the same as those of the first example.

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 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。
Among the raw materials for the glass ceramics shown in the first example, the amount of Al2O3 was slightly increased to generate many striae (layered striped patterns) in the glass ceramics after sintering.

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。
The glass-ceramic seal thus obtained had striae, had an appearance very similar to natural ivory, and had a density almost the same as 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。
Furthermore, properties such as heat resistance, impact resistance, thermal shock resistance, etc., were almost the same as those of the first example.

[発明の効果] 以上説明したようにこの発明は、少なくとも***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。
[Effects of the Invention] As explained above, in the present invention, by using a seal in which at least the seal portion is made of glass ceramics, not only heat resistance and abrasion resistance but also thermal shock resistance is improved.

また、上記ガラスセラミックスをマイカ結晶及びβ−ス
ポジウ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。
Moreover, by making the glass ceramics into which mica crystals and β-spodiumene crystals are precipitated, machinability can be improved and marking becomes easier.

また、上記ガラスセラミックスをSio2゜A120s
 lMgO,Li2O,Na2O。
In addition, the above glass ceramics can be used in Sio2°A120s
lMgO, Li2O, Na2O.

ZnO,F、Zr0z 、を主成分として含有し、着色
材トシ1”F e 203 + A g2C)+ N 
I 0rCeO2,Mn0z 、T ioz 、Coo
(7)中カラ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。
Contains ZnO, F, and Zr0z as main components, and contains coloring material 1"F e 203 + A g2C) + N
I0rCeO2, Mn0z, Tioz, Coo
(7) By including a selected medium color, it is possible to easily color it 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 glass-ceramic seal stamp according to the present invention not only has heat resistance and impact resistance on the same level as conventional seal stamps made of ceramics such as alumina and zirconia, but also has improved thermal shock resistance. Because it becomes a thing,
It will not be damaged even if subjected to thermal shock due to rapid heating and cooling due to fire, etc.

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。
Furthermore, it is possible to provide a glass-ceramic seal stamp that is easy to engrave, provides accurate stamp impressions down to the details, and can be colored in a desired color.

Claims (3)

【特許請求の範囲】[Claims] (1)、少なくとも***部をガラスセラミックスで構成
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 made of glass ceramics, characterized in that at least the seal part is made of glass ceramics.
(2)、上記ガラスセラミックスがマイカ結晶及び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 above glass-ceramics are mica crystals and β-
The glass-ceramic seal according to claim 1, characterized in that it is a glass-ceramic in which spodumene crystals are precipitated.
(3)上記ガラスセラミックスがSiO_2、MgO、
Al_2O_3、Li_2O、Na_2O、ZnO、F
、ZrO_2、を主成分として含有し、着色材としてF
e_2O_3、Ag_2O、NiO、CeO_2、Mn
O_2、TiO_2、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 above glass ceramics are SiO_2, MgO,
Al_2O_3, Li_2O, Na_2O, ZnO, F
, ZrO_2, as the main component, and F as a coloring agent.
e_2O_3, Ag_2O, NiO, CeO_2, Mn
The glass ceramic seal according to claim 1 or 2, characterized in that it contains one selected from O_2, TiO_2, and CoO.
JP63080105A 1988-03-31 1988-03-31 Glass ceramic seal Expired - Lifetime JP2598075B2 (en)

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)

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JPH01252550A true JPH01252550A (en) 1989-10-09
JP2598075B2 JP2598075B2 (en) 1997-04-09

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Cited By (3)

* Cited by examiner, † Cited by third party
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
JP2008221680A (en) * 2007-03-14 2008-09-25 Shikata:Kk Method for manufacturing seal and seal made of ceramics

Cited By (3)

* Cited by examiner, † Cited by third party
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
JP2008221680A (en) * 2007-03-14 2008-09-25 Shikata:Kk Method for manufacturing seal and seal made of ceramics

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Publication number Publication date
JP2598075B2 (en) 1997-04-09

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