JPH0470342A - Doctor blade - Google Patents
Doctor bladeInfo
- Publication number
- JPH0470342A JPH0470342A JP17458790A JP17458790A JPH0470342A JP H0470342 A JPH0470342 A JP H0470342A JP 17458790 A JP17458790 A JP 17458790A JP 17458790 A JP17458790 A JP 17458790A JP H0470342 A JPH0470342 A JP H0470342A
- Authority
- JP
- Japan
- Prior art keywords
- doctor blade
- doctor
- ceramic
- steel
- rotating direction
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 12
- 238000007747 plating Methods 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 abstract description 14
- 239000010959 steel Substances 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 10
- 238000007639 printing Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
Landscapes
- Rotary Presses (AREA)
- Nonmetal Cutting Devices (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明はグラビア印刷やコーターに使用されるドクター
刃に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a doctor blade used in gravure printing and coaters.
［従来の技術］
従来用いられているドクター刃１は、第３図に示すよう
に鋼製のドクター刃素材２表裏面にセラメッキ層３を施
して形成されている。なお、同図中符号４は回転版であ
る。[Prior Art] A conventionally used doctor blade 1 is formed by applying a ceramic plating layer 3 to the front and back surfaces of a steel doctor blade material 2, as shown in FIG. Note that the reference numeral 4 in the figure is a rotating plate.
即ち、セラメッキ層３を形成する方法としては、無電解
ニッケルメッキ洛中に炭化ケイ素、窒化ホウ素、等のセ
ラミックスの各種微粉を適量添加し、メツキと同時にこ
れら微粉をメツキ被膜内に析出、複合させ、鋼製ドクタ
の表面に硬質層を形成させる。なお、このあと熱処理を
行うことによりメツキ層の硬度をさらに向上させること
もある。このようにすることにより、ドクターの耐摩耗
性を向上させ、かつ、ドクター刃先のかえり、異常摩耗
を防止し、印刷及びコート不良を抑制している。That is, the method for forming the ceramic plating layer 3 is to add appropriate amounts of various fine powders of ceramics such as silicon carbide and boron nitride during electroless nickel plating, and simultaneously with plating, these fine powders are precipitated and combined within the plating film. A hard layer is formed on the surface of the steel doctor. Note that the hardness of the plating layer may be further improved by performing heat treatment after this. By doing so, the abrasion resistance of the doctor blade is improved, burrs and abnormal wear of the doctor blade edge are prevented, and printing and coating defects are suppressed.
なお、刃先を薄くしであるのは、厚いと版とドクターの
間に隙間が生じ、インキの掻き残しが生ずるので、この
ようにならないよう印刷版の形状にうまく追従できるよ
うにするためである。The reason why the cutting edge is made thin is to allow it to follow the shape of the printing plate to avoid this, as if it is too thick, there will be a gap between the plate and the doctor, resulting in unscraped ink. .
［発明が解決しようとする課題］
前述したセラメッキを施したドクターを用いれば、ドク
ターの耐摩耗性は従来の１０倍程度向上し、又、印刷不
良も大巾に減少する。[Problems to be Solved by the Invention] If the ceramic-plated doctor blade described above is used, the abrasion resistance of the doctor blade will be improved by about 10 times compared to the conventional doctor, and the number of printing defects will be greatly reduced.
しかしながら、セラメッキが鋼より剥離し脱落すること
があり、セラメッキ部が脱落した部分の性能は通常の鋼
製ドクターと同一となってしまい、この部分の摩耗が他
のメツキのある所に比べ促進されてしまう。However, the ceramic plating may peel off from the steel and fall off, and the performance of the part where the ceramic plating has fallen off is the same as that of a regular steel doctor, and the wear of this part is accelerated compared to other plating parts. It ends up.
また、セラメッキの脱落した部分は、従来の鋼製ドクタ
ーと同じように刃先の返りなどが発生し、印刷でのトラ
ブルが発生する要因となり、印刷不良が多発してしまう
。In addition, the part where the ceramic plating has fallen off will cause the cutting edge to warp, just like with conventional steel doctors, which can cause printing problems and result in frequent printing defects.
［課題を解決するための手段］
本発明はドクター鋼素材の回転版に接触する回転方向手
前側にはセラメッキ、回転方向裏側にはニッケルメッキ
を施すことにより、回転方向手前側では摩耗しに＜＜、
裏側には剥離し難い構成として、ドクターとしての性能
の向上を図るものである。[Means for Solving the Problems] The present invention provides ceramic plating on the front side in the rotation direction that contacts the rotating plate of the doctor steel material, and nickel plating on the back side in the rotation direction, thereby preventing wear on the front side in the rotation direction. <,
The back side has a structure that prevents it from peeling off, improving its performance as a doctor.
［作用］
ドクター刃を形成する鋼表面の印刷版回転方向表面側に
セラメッキ、裏面側にニッケルメッキを施すことにより
、表面側では耐摩耗性にすぐれ、且つ、裏面側では剥離
の生じ難い性能を備えたドクターを得ることができる。[Function] Ceramic plating is applied to the front side of the steel surface in the printing plate rotation direction that forms the doctor blade, and nickel plating is applied to the back side, resulting in excellent wear resistance on the front side and resistance to peeling on the back side. You can get a well-equipped doctor.
［実施例］
第１図は本発明によるドクター刃の断面図で、本発明に
よるドクター刃１は、鋼製のドクター刃素材２の印刷版
４回転方向表面側にセラメッキ層３を形成させ、裏面側
には、セラメッキ層ではなく、ニッケルメッキ層５を形
成させである。[Example] FIG. 1 is a cross-sectional view of a doctor blade according to the present invention. The doctor blade 1 according to the present invention has a ceramic plated layer 3 formed on the front side in the direction of rotation of the printing plate 4 of a steel doctor blade material 2, and the back side of the doctor blade material 2 made of steel. On the side, a nickel plating layer 5 is formed instead of a ceramic plating layer.
また、第２図は本発明による他の実施例で、第１図に示
す実施例のものにおいて、裏面側の二・ソケルメッキ層
の上にさらにセラメッキを施したもので、剥離し難く、
且つ耐摩耗性に優れたドクターが得られる。Furthermore, FIG. 2 shows another embodiment according to the present invention, in which, in the embodiment shown in FIG. 1, ceramic plating is further applied on the Ni-Sokel plating layer on the back side, so that it is difficult to peel off.
In addition, a doctor blade with excellent wear resistance can be obtained.
［効果］
本発明は、鋼製ドクターの印刷版回転方向表面側にセラ
メッキ、裏面側にニッケルメッキを施すことにより、ド
クター刃の手前側の耐摩耗性が向上し、また、裏面側に
はニッケルメッキを施しであるので剥離し難くなるばか
りでなく、ドクター刃先のかえり、異常摩耗を防止し、
印刷及びコート不良を抑制することができる。[Effect] The present invention improves the abrasion resistance of the front side of the doctor blade by applying ceramic plating to the front side of the steel doctor in the direction of rotation of the printing plate and nickel plating to the back side. Since it is plated, it is not only difficult to peel off, but also prevents burrs and abnormal wear on the doctor blade edge.
Printing and coating defects can be suppressed.
また、裏面側のニッケルメッキ層５の上にさらにセラメ
ッキを施すことにより、耐摩耗性の向上が図れる。即ち
、鋼材表面にＳａｃとＮｉよりなるセラメッキ層を形成
する場合、セラミック粒子近傍のニッケルに応力が集中
し、鋼面よりセラメッキが脱落し易いが、鋼近傍はニッ
ケルメッキ層のみとし、その上面側にセラメッキ層を形
成するようにすると、同一母材のニッケル表面側にセラ
ミック粒子が位置することになるので剥離し難くなり、
さらに性能の優れたものとなる。In addition, by further performing ceramic plating on the nickel plating layer 5 on the back side, wear resistance can be improved. That is, when a ceramic plating layer made of Sac and Ni is formed on the surface of a steel material, stress concentrates on the nickel near the ceramic particles, and the ceramic plating tends to fall off from the steel surface. If a ceramic plating layer is formed on the base material, the ceramic particles will be located on the nickel surface side of the same base material, making it difficult to peel off.
The performance will be even better.
第１図は本発明によるドクター刃が回転版に接触した状
態の断面図、第２図は別実施例を示す第１図と同様の断
面図、第３図は従来例を示す同様の断面図、である。
１・・・・ドクター刃、 ２・・・・ドクター刃素材、
３・・・・セラメッキ層、４・・・・回転版、５・・・
・ニッケルメッキ層。
第１図
第２図
第３図Fig. 1 is a sectional view of the doctor blade according to the present invention in contact with a rotating plate, Fig. 2 is a sectional view similar to Fig. 1 showing another embodiment, and Fig. 3 is a similar sectional view showing a conventional example. , is. 1...Doctor blade, 2...Doctor blade material,
3... Ceramic layer, 4... Rotating plate, 5...
・Nickel plating layer. Figure 1 Figure 2 Figure 3
Claims (2)
面にセラメッキ層、他側にニッケルメッキ層を形成して
なるドクター刃。(1) A doctor blade with a ceramic plating layer formed on the front surface in the direction of rotation that contacts the rotating plate of the doctor blade, and a nickel plating layer formed on the other side.
面にセラメッキ層、他側には表面よりニッケルメッキ層
、セラメッキ層の順に形成してなるドクター刃。(2) A doctor blade in which a ceramic plating layer is formed on the front surface in the direction of rotation that contacts the rotating plate of the doctor blade, and a nickel plating layer and a ceramic plating layer are formed on the other side in this order from the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17458790A JP2884367B2 (en) | 1990-07-03 | 1990-07-03 | Doctor blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17458790A JP2884367B2 (en) | 1990-07-03 | 1990-07-03 | Doctor blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0470342A true JPH0470342A (en) | 1992-03-05 |
| JP2884367B2 JP2884367B2 (en) | 1999-04-19 |
Family
ID=15981170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17458790A Expired - Lifetime JP2884367B2 (en) | 1990-07-03 | 1990-07-03 | Doctor blade |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2884367B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210914A (en) * | 2001-01-16 | 2002-07-31 | Nippon New Chrome Kk | Manufacturing method for doctor blade |
-
1990
- 1990-07-03 JP JP17458790A patent/JP2884367B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210914A (en) * | 2001-01-16 | 2002-07-31 | Nippon New Chrome Kk | Manufacturing method for doctor blade |
| JP4485076B2 (en) * | 2001-01-16 | 2010-06-16 | 日本ニュークローム株式会社 | Doctor blade manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2884367B2 (en) | 1999-04-19 |
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