JPS63290596A - Production of outer blade of electric razor - Google Patents
Production of outer blade of electric razorInfo
- Publication number
- JPS63290596A JPS63290596A JP12653287A JP12653287A JPS63290596A JP S63290596 A JPS63290596 A JP S63290596A JP 12653287 A JP12653287 A JP 12653287A JP 12653287 A JP12653287 A JP 12653287A JP S63290596 A JPS63290596 A JP S63290596A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- outer blade
- electric razor
- sheet
- cutting edge
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000000919 ceramic Substances 0.000 claims description 41
- 238000005520 cutting process Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 8
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000009694 cold isostatic pressing Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910002077 partially stabilized zirconia Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Dry Shavers And Clippers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔技術分野〕 この発明は、電気カミソリの外刃の製法に関する。[Detailed description of the invention] 〔Technical field〕 The present invention relates to a method for manufacturing an outer blade for an electric razor.
近年、耐摩耗性に優れていることから、従来全屈が使用
されてきたものに代わり、セラミックが盛んに使用され
ている。刃物の分野にも進出が目覚ましい。In recent years, ceramics have been widely used in place of the conventionally used full-bending materials due to their excellent wear resistance. The company has also made remarkable advances in the field of cutlery.
ところで、セラミックを所望の形に成形する方法として
は、主に射出成形、鋳込成形およびＣＩＰ（冷間静水圧
加圧）等の方法があり、かなり、複雑な形状まで成形す
ることができるようになっている。しかしながら、薄物
で、かつ、寸法精度が要求されるもの、たとえば、電気
カミソリの外刃などは、上記のような成形方法では、未
だに寸法精度よく得ることができないという問題があっ
た。すなわち、それは、セラミックが、焼結する時の緻
密化過程において数十パーセントも収縮を起こすことが
原因となっている。By the way, there are mainly methods such as injection molding, cast molding, and CIP (cold isostatic pressing) to mold ceramic into a desired shape, and even quite complex shapes can be molded. It has become. However, there has been a problem in that thin products that require dimensional accuracy, such as the outer blade of an electric razor, cannot be obtained with high dimensional accuracy using the above-mentioned molding method. That is, this is caused by the fact that the ceramic shrinks by several tens of percent during the densification process during sintering.
したがって、電気カミソリの外刃などの薄物を精度よく
得るためには、焼成後に寸法だしのための補正研磨加工
を行うか、最初からバルク状の焼結体を形成し、この焼
結体を研削・研磨加工を行っているのが現状である。し
かし、このような方法で形成するようにしても、精度の
点で未だに問題があった。Therefore, in order to obtain thin objects such as the outer blade of an electric razor with high precision, one must perform a correction polishing process to obtain the dimensions after firing, or form a bulk sintered body from the beginning and then grind this sintered body.・Currently, polishing is being performed. However, even when formed using this method, there is still a problem in terms of accuracy.
この発明は、このような事情に鑑みて、高精度な電気カ
ミソリのセラミック製外刃を簡単に得ることができる電
気カミソリの外刃の製法を提、供することを目的として
いる。In view of the above circumstances, it is an object of the present invention to provide and provide a method for manufacturing an electric razor outer blade by which a highly accurate ceramic outer blade for an electric razor can be easily obtained.
通常、セラミックは原子間の結合力が強いため弾性率が
高い。そのため、室温では弾性域でほとんど破壊されて
しまう。しかし、高温域ではセラミックであっても粒子
間すべり、あるいは、粒内転位の動きなどによって塑性
変形が起こり、一定荷重下で塑性変形が進むクリープと
言う現象が見られるようになる。Generally, ceramics have a high elastic modulus due to strong bonding forces between atoms. Therefore, at room temperature, most of the material is destroyed in the elastic region. However, in a high temperature range, even ceramics undergo plastic deformation due to interparticle slippage or intragranular dislocation movement, and a phenomenon called creep, where plastic deformation progresses under a constant load, can be observed.
そこで、発明者は、上記目的を達成するために、この現
象を利用してセラミックを成形するようにすることに着
目し、鋭意検討を重ねた結果、この発明を完成するに到
った。Therefore, in order to achieve the above object, the inventors focused on molding ceramics by utilizing this phenomenon, and as a result of intensive studies, they completed the present invention.
したがって、この発明は、電気カミソリの外刃をセラミ
ックで形成するにあたり、セラミック焼結体シートを高
温下で型加工することによって、前記セラミック焼結体
シートの面の切刃部が設けられる個所に凸部を膨出形成
し、前記凸部を前記セラミック焼結体シートの面に沿う
方向に研削することによって孔開は加工し切刃部とする
ことを特徴とする電気カミソリの外刃の製法を要旨とし
ている。Therefore, in forming the outer blade of an electric razor from ceramic, the present invention molds a ceramic sintered sheet at a high temperature to form a cutting edge at a portion of the surface of the ceramic sintered sheet. A method for producing an outer blade for an electric razor, characterized in that a protrusion is formed into a bulge, and the protrusion is ground in a direction along the surface of the ceramic sintered sheet to form a hole to form a cutting edge. The gist is:
以下に、この発明を、その実施例をあられす図面を参照
しつつ詳しく説明する。Hereinafter, embodiments of the present invention will be explained in detail with reference to the accompanying drawings.
第１図はこの発明にかかる製法によって電気カミソリの
外刃を製造するための装置の１例を横からみた断面であ
られしている。図にみるように、この装置Ａは、炉１内
に成形機２が配置されている。炉１は、炉体１１．ヒー
タ１２および炉心管１３を備えている。炉心管１３内に
成形機２が挿入配置されている。炉体１１の天井部には
、成形機２のポンチ２１の軸２１ａが挿通される通孔１
１ａが形成されている。成形機２は雌型（キャビティ型
）２２と雄型（パンチ）２３を備えている。雌型２２は
、所望価の凹部２２ａを所望の場所（切刃部となる凸部
を形成する個所）に有していて、ホルダー２４に嵌め込
まれて固定されている。雌型２２およびホルダー２４は
、支台２５の上に設置されている。雄型２３は前記凹部
２２ａに対応する部分に凸部２３ａを備えていて、ポン
チ２１に固定されている。ポンチ２１および雄型２３は
、リテーナ２６内を摺動するようになっている。FIG. 1 is a cross-sectional side view of one example of an apparatus for manufacturing outer blades of electric razors by the manufacturing method according to the present invention. As shown in the figure, in this apparatus A, a molding machine 2 is disposed within a furnace 1. The furnace 1 includes a furnace body 11. It is equipped with a heater 12 and a furnace core tube 13. A molding machine 2 is inserted into the furnace core tube 13 . The ceiling of the furnace body 11 has a through hole 1 through which the shaft 21a of the punch 21 of the molding machine 2 is inserted.
1a is formed. The molding machine 2 includes a female mold (cavity mold) 22 and a male mold (punch) 23. The female mold 22 has a recess 22a of a desired value at a desired location (a location where a protrusion serving as a cutting edge is formed), and is fitted and fixed in a holder 24. The female die 22 and the holder 24 are placed on a support base 25. The male die 23 has a convex portion 23a in a portion corresponding to the concave portion 22a, and is fixed to the punch 21. The punch 21 and the male die 23 are adapted to slide within the retainer 26.
つぎに、この装置Ａを用いて電気カミソリの外刃をつ（
る工程を説明する。Next, use this device A to tighten the outer blade of the electric razor (
Explain the process.
まず、第２図（ａ）にみるようにセラミック焼結体シー
ト３を雌型２２と雄型２３との間にセットしたのち、炉
１内の温度をセラミック焼結体シート３のクリープ現象
が起こる温度まで昇温する。所定の温度に達したら、ポ
ンチ２１を下方（矢印方向）に押し下げ、雄型２３に圧
力を掛ける。セラミック焼結体シート３は、クリープ現
象が起こる温度になっているので、雄型２３の凸部２３
ａに当たる部分が塑性変形して第２図（′ｂ）にみるよ
うに雌型２２の凹部２２ａ側に入り込む。そして、ポン
チ２１を上へ引き上げ、炉１を冷却後前記セラミック焼
結体シート３を取り出す。取り出されたセラミック焼結
体シート３は、雌型２２に沿うような形状に成形されて
いる。すなわち、第３図（ａ）にみるように、切刃部と
なる凸部３１がセラミック焼結体シート３の面に膨出形
成される。この凸部３１をセラミック焼結体シート３の
面に沿う方向に研削して第３図（ｂｌにみるように孔３
２を開ける。孔３２の形成と同時にその内周縁には切刃
部（ランド）３３が形成されて外刃４が形成されるよう
になっている。なお、第３図Ｃｂｌ中、３４はヒゲ導入
部（カウンターシンク）である。First, as shown in FIG. 2(a), the ceramic sintered sheet 3 is set between the female mold 22 and the male mold 23, and then the temperature in the furnace 1 is adjusted to ensure the creep phenomenon of the ceramic sintered sheet 3. Raise the temperature to the temperature that occurs. When a predetermined temperature is reached, the punch 21 is pushed down (in the direction of the arrow) to apply pressure to the male die 23. Since the temperature of the ceramic sintered body sheet 3 is such that a creep phenomenon occurs, the convex portion 23 of the male die 23
The portion corresponding to a is plastically deformed and enters the recess 22a side of the female mold 22 as shown in FIG. 2('b). Then, the punch 21 is pulled upward, and after cooling the furnace 1, the ceramic sintered sheet 3 is taken out. The ceramic sintered sheet 3 taken out is molded into a shape that follows the female die 22. That is, as shown in FIG. 3(a), a convex portion 31 serving as a cutting edge portion is formed in a bulging manner on the surface of the ceramic sintered sheet 3. As shown in FIG. The protrusions 31 are ground in the direction along the surface of the ceramic sintered sheet 3, and the holes 31 are ground as shown in FIG.
Open 2. At the same time as the hole 32 is formed, a cutting edge portion (land) 33 is formed on the inner peripheral edge thereof, so that the outer cutter 4 is formed. In addition, in FIG. 3 Cbl, 34 is a whisker introduction part (counter sink).
外刃４となるセラミック材料としては、微細化粒径制御
されたアルミナ、炭化ケイ素等の通常のセラミック材料
やイツトリア部分安定化ジルコニアなどに代表される超
塑性を示すセラミック材料などが挙げられる。超塑性と
は、高温下で異常に大きな変形（数百パーセント以上）
を示すことであって、セラミック材料に見られる超塑性
は、微細結晶粒超塑性と呼ばれ、極めて微細な結晶粒径
（サブミクロン）を有するものにおいて現れるもので、
粒界すべりや粒界移動による変形が主であると考えられ
ている。Examples of the ceramic material for the outer blade 4 include ordinary ceramic materials such as alumina and silicon carbide whose fine grain size is controlled, and ceramic materials exhibiting superplasticity such as yttria partially stabilized zirconia. Superplasticity is an abnormally large deformation (several hundred percent or more) at high temperatures.
The superplasticity observed in ceramic materials is called fine grain superplasticity, and appears in materials with extremely fine grain sizes (submicrons).
It is thought that deformation is mainly caused by grain boundary slip and grain boundary movement.
第４図（ａ）、 （ｂｌは、この発明にかかる製法によ
って電気カミソリの外刃を製造するための装置の別の１
例を横からみた断面を拡大してあられしている。図にみ
るように、この装置は、前述の装置Ａの雄型２３の代わ
りに、セラミックパウダー２７が用いられている。この
ように雄型２３の代わりにセラミックパウダー２７を用
いるようにすれば、雌型２２と雄型２３の位置合わせを
する必要がなくなる。すなわち、ポンチ２１を押し下げ
るとセラミックパウダー２７が圧力媒体となり、このセ
ラミックパウダー２７を介してセラミック焼結体シート
を、雌型２２とは反対の面から加圧して雌型２２に沿う
ように塑性変形させるようになっているのである。FIG. 4(a), (bl is another one of the apparatus for manufacturing the outer blade of an electric razor by the manufacturing method according to the present invention.
An enlarged cross-section of an example from the side is shown. As shown in the figure, this device uses ceramic powder 27 instead of the male mold 23 of device A described above. If the ceramic powder 27 is used in place of the male die 23 in this manner, there is no need to align the female die 22 and the male die 23. That is, when the punch 21 is pushed down, the ceramic powder 27 becomes a pressure medium, and the ceramic sintered sheet is pressurized from the opposite side of the female die 22 through the ceramic powder 27, and is plastically deformed along the female die 22. It is designed to let you do so.
上記のように圧力媒体となるセラミックパウダーとして
は、アルミナ（Ａ １１０ｓ ） 、炭化ケイ素（Ｓ
ｉ Ｃ） 、窒化ホウ素（Ｂ Ｎ）等が挙げられる。こ
れらのパウダーのうち、離型性を考慮するとＳｉＣ，Ｂ
Ｎが特に好ましい。また、転写精度まで含めて評価する
と、ＢＮ＞Ｓ ｉ Ｃ＞Ａ ｌ ｚ Ｏ３となる。ただ
し、転写精度は、パウダーの流動性および粒径に依存す
ると考えられるので、上記環も粒径などを換えることに
より変化すると考えられる。As mentioned above, ceramic powders that serve as pressure media include alumina (A110s), silicon carbide (S
i C), boron nitride (BN), and the like. Among these powders, considering mold release properties, SiC, B
N is particularly preferred. Furthermore, when evaluated including the transfer accuracy, BN>S i C>A l z O3. However, since the transfer accuracy is considered to depend on the fluidity and particle size of the powder, the above-mentioned ring is also considered to be changed by changing the particle size.
つぎに実施例を詳しく説明する。Next, examples will be explained in detail.
（実施例）
共沈法で作られたイツトリア（Ｙ＝ Ｏｘ ）が３ｍｏ
１％固熔した部分安定化ジルコニア原料粉末をスラリー
状にし、このスラリーをドクターブレード法によってグ
リーンシートに成形した。このグリーンシートを１５０
０℃の温度で焼成して厚み約５０μｍの焼結体シートを
得た。この焼結体は、主として平均粒径が０．３〜０．
４μｍの正方晶の微細結晶粒より構成されていた。(Example) 3 mo of Ittria (Y = Ox) made by coprecipitation method
A 1% solidified partially stabilized zirconia raw material powder was made into a slurry, and this slurry was formed into a green sheet by a doctor blade method. 150 of this green sheet
A sintered sheet having a thickness of about 50 μm was obtained by firing at a temperature of 0° C. This sintered body mainly has an average grain size of 0.3 to 0.
It was composed of fine tetragonal crystal grains of 4 μm.
この焼結体シートを第１図に示した装置Ａにセントし、
切刃部となる凸部を形成した。なお、雄型および雌型は
市販の炭化ケイ素（ＳｉＣ）粒子分散型窒化ケイ素（Ｓ
ｉｔＮ＋）複合セラミックのバルク状試料に放電加工に
より凸部および凹部をそれぞれ形成したものを用いた。Place this sintered sheet into the device A shown in Figure 1,
A convex portion was formed to serve as a cutting edge. The male and female types are commercially available silicon carbide (SiC) particle-dispersed silicon nitride (S
ItN+) A bulk sample of composite ceramic in which convex portions and concave portions were formed by electrical discharge machining was used.
切刃部となる凸部形成時の条件は、炉内空気を１４５０
℃にし、０．２ ｍ／ａＩｉｎの押圧速度で２００ ｋ
ｇ ／ ａＪの圧力で行った。この時の塑性変形量は、
およそ３０％程度で、くびれや不均一な変形は全くなか
った。The conditions for forming the protrusion that will become the cutting edge are as follows:
°C and 200 k at a pressing speed of 0.2 m/aIin.
It was carried out at a pressure of g/aJ. The amount of plastic deformation at this time is
It was approximately 30%, and there was no constriction or uneven deformation at all.
このようにして切刃部となる凸部を形成したのち、この
凸部を周知の方法（ソフトスタンプ加工）によって研削
して孔を形成して外刃を作製した上記のようして得られ
た外刃は、刃孔寸法やその形状などの精度が電気カミソ
リの外刃として十分に満足の行（ものであった。After forming the convex part that will become the cutting edge in this way, the convex part is ground by a well-known method (soft stamping) to form a hole and produce an outer cutter. The accuracy of the outer blade, such as the dimensions of the blade hole and its shape, was sufficiently satisfactory as an outer blade for an electric razor.
この発明にかかる電気カミソリの外刃の製法は、上記の
実施例に限定されない。上記の実施例では、孔の形状は
円形であったが、ひし形や六角形でも構わない。孔の形
状は、雌型の凹部の形状を換えることにより自由に選択
できる。The method for manufacturing the outer blade of the electric razor according to the present invention is not limited to the above embodiments. In the above embodiments, the holes were circular in shape, but they may also be rhombic or hexagonal. The shape of the hole can be freely selected by changing the shape of the female recess.
この発明にかかる電気カミソリの外刃の製法は、以上の
ように、電気カミソリの外刃をセラミックで形成するに
あたり、セラミック焼結体シートを高温下で型加工する
ことによって、前記セラミック焼結体シートの面の切刃
部が設けられる個所に凸部を膨出形成し、前記凸部を前
記セラミック焼結体シートの面に沿う方向に研削するこ
とによって孔開は加工し切刃部とするようになっている
ので、高精度な電気カミソリのセラミック製外刃を簡単
に得ることができる。As described above, in the method for manufacturing the outer blade of an electric razor according to the present invention, in forming the outer blade of the electric razor from ceramic, the ceramic sintered body is formed by molding a ceramic sintered body sheet at high temperature. A protrusion is formed at a location on the surface of the sheet where the cutting edge is to be provided, and the protrusion is ground in a direction along the surface of the ceramic sintered sheet to form the hole and form the cutting edge. This makes it easy to obtain a highly accurate ceramic outer blade for an electric razor.
第１図はこの発明にかかる電気カミソリの外刃の製法に
用いられる装置の１例をあられす側断面図、第２図（ａ
）、 （ｂ）は、セラミック焼結体シートに切刃部とな
る凸部を形成する工程を説明する拡大側断面図、第３図
（ａ）、 （ｂ）はその凸部を研削して切刃部を形成す
る工程を説明する斜視図、第４図（ａｌ、（ｂ）はこの
発明にかかる電気カミソリの外刃の製法に用いられる装
置の１例を用いてセラミック焼結体シートに切刃部とな
る凸部を形成する他の工程を説明する拡大側断面図であ
る。
３・・・セラミック焼結体シート ４・・・外刃 ２２
・・・雌型 ２２ａ・・・凹部 ２７・・・セラミック
パウダー ３１・・・切刃部となる凸部 ３２・・・孔
３３・・・切刃部
代理人 弁理士 松 本 武 彦
第２図
（ａ）
第３図
（ａ）
（ｂ）
第４図
（ａ）FIG. 1 is a side sectional view of an example of the apparatus used in the method for manufacturing the outer blade of an electric razor according to the present invention, and FIG.
), (b) are enlarged side sectional views illustrating the process of forming a protrusion that will become a cutting edge on a ceramic sintered sheet, and Figs. FIGS. 4(a) and 4(b), which are perspective views illustrating the process of forming a cutting edge, are a ceramic sintered body sheet formed using an example of the apparatus used in the method for manufacturing the outer blade of an electric razor according to the present invention. It is an enlarged side sectional view explaining another process of forming a convex part which becomes a cutting edge part. 3... Ceramic sintered compact sheet 4... Outer blade 22
...Female mold 22a...Concavity 27...Ceramic powder 31...Protrusion that becomes the cutting edge 32...Hole 33...Cutting blade agent Patent attorney Takehiko Matsumoto Figure 2 (a) Figure 3 (a) (b) Figure 4 (a)
Claims (2)
たり、セラミック焼結体シートを高温下で型加工するこ
とによって、前記セラミック焼結体シートの面の切刃部
が設けられる個所に凸部を膨出形成し、前記凸部を前記
セラミック焼結体シートの面に沿う方向に研削すること
によって孔開け加工し切刃部とすることを特徴とする電
気カミソリの外刃の製法。(1) When forming the outer blade of an electric razor from ceramic, a sintered ceramic sheet is molded at high temperatures to form a convex portion on the surface of the ceramic sintered sheet at the location where the cutting edge will be provided. A method for manufacturing an outer blade for an electric razor, characterized in that a bulge is formed and the convex portion is ground in a direction along the surface of the ceramic sintered sheet to form a hole to form a cutting edge.
形成された雌型上にセラミック焼結体シートを配置し、
このセラミック焼結体シートを、前記雌型とは反対側の
面からセラミックパウダーを介して圧力を加えることに
より、前記雌型の形状に沿うように塑性変形させること
によってなされる特許請求の範囲第１項記載の電気カミ
ソリの外刃の製法。(2) In mold processing, a ceramic sintered body sheet is placed on a female mold in which a recessed part is formed to form a convex part that will become a cutting edge part,
The ceramic sintered sheet is plastically deformed to conform to the shape of the female die by applying pressure through the ceramic powder from the side opposite to the female die. A method for manufacturing an outer blade of an electric razor according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12653287A JPS63290596A (en) | 1987-05-23 | 1987-05-23 | Production of outer blade of electric razor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12653287A JPS63290596A (en) | 1987-05-23 | 1987-05-23 | Production of outer blade of electric razor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63290596A true JPS63290596A (en) | 1988-11-28 |
| JPH0425838B2 JPH0425838B2 (en) | 1992-05-01 |
Family
ID=14937534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12653287A Granted JPS63290596A (en) | 1987-05-23 | 1987-05-23 | Production of outer blade of electric razor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63290596A (en) |
-
1987
- 1987-05-23 JP JP12653287A patent/JPS63290596A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0425838B2 (en) | 1992-05-01 |
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