JPH01116584A - Production of heat fixing roll for copying machine - Google Patents
Production of heat fixing roll for copying machineInfo
- Publication number
- JPH01116584A JPH01116584A JP27405587A JP27405587A JPH01116584A JP H01116584 A JPH01116584 A JP H01116584A JP 27405587 A JP27405587 A JP 27405587A JP 27405587 A JP27405587 A JP 27405587A JP H01116584 A JPH01116584 A JP H01116584A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- insulating layer
- groove
- fixing roll
- adhesion
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 230000000873 masking effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims 1
- 238000007751 thermal spraying Methods 0.000 abstract description 8
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000011347 resin Substances 0.000 abstract description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 4
- 229910001120 nichrome Inorganic materials 0.000 abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract description 3
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 238000010422 painting Methods 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 abstract description 2
- 239000010409 thin film Substances 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 3
- 238000010433 powder painting Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 61
- 238000005498 polishing Methods 0.000 description 14
- 230000002265 prevention Effects 0.000 description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000000181 anti-adherent effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は電子複写機の熱定着ロールの製造方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method of manufacturing a heat fixing roll for an electronic copying machine.
従来の技術
従来この種の熱定着ロールの製造方法は中空管の外側に
絶縁層を介して金属線を螺旋状に捲き付け、それらの表
面に発熱抵抗体を熔射して発熱抵抗体層を形成した後、
その金属線を取り去ってそこに螺旋状の溝を形成し、該
発熱抵抗体の表面および溝内に絶縁層及び付着防止層を
形成し、その際付着防止層の表面に不可避的に形成され
る螺旋状の窪みを無くならせるため、その付着防止層の
表面を全長に互って平滑になる迄研磨していた。2. Description of the Related Art Conventionally, this type of heat fixing roll was manufactured by winding metal wires in a spiral shape on the outside of a hollow tube through an insulating layer, and then melting a heat generating resistor onto the surface of the metal wires to form a heat generating resistor layer. After forming the
The metal wire is removed and a spiral groove is formed therein, and an insulating layer and an anti-adhesion layer are formed on the surface of the heating resistor and within the groove, and at this time, an insulating layer and an anti-adhesion layer are inevitably formed on the surface of the anti-adhesion layer. In order to eliminate the spiral depressions, the surface of the anti-adhesion layer was polished until it became smooth over its entire length.
この場合、螺旋状発熱体層の幅は溝の幅に比べて著しく
大きいので、例えば前者の3〜10Tt1 mに対して
後者は0.5mmであるので、付着防止層の研磨量が著
しく大きくなる。そのため高価な付着防止用樹脂が無駄
に消費される。In this case, since the width of the spiral heating element layer is significantly larger than the width of the groove, for example, the former is 3 to 10 Tt1 m while the latter is 0.5 mm, so the amount of polishing of the anti-adhesion layer is significantly large. . Therefore, expensive adhesion prevention resin is wasted.
発明が解決しようとする問題点
この発明の目的は前記従来の方法における付着防止層の
表面の研磨に際して、消費される高価な樹脂の量を最小
限度に押さえることである、または研磨しないで使用で
きる熱定着ロールを提供することである。Problems to be Solved by the Invention An object of the present invention is to minimize the amount of expensive resin consumed when polishing the surface of the anti-adhesion layer in the conventional method, or to enable use without polishing. An object of the present invention is to provide a heat fixing roll.
問題点を解決するための手段
金属製中空管の表面に絶縁層を形成し、その上に金属線
を螺旋状に捲き付けてマスキングし、該絶縁層の表面の
露出面に発熱抵抗体層を溶射によって、その螺旋状の頂
部を若干突出した状態で形成し、次にその金属線を除去
した跡に螺旋状の溝を形成し、その溝の内面及び発熱抵
抗体層の表面全体をセラミック絶縁層で被覆し、この際
セラミック絶縁層の表面に形成される螺旋状窪み内に糸
状付着防止材を捲き付け、更に該絶縁層及び糸状付着防
止材の表面をf1着防止層で被覆し、その後必要に応じ
てこの付着防止層の表面を平滑に研磨することである。Means for solving the problem: An insulating layer is formed on the surface of a metal hollow tube, a metal wire is wound spirally on it for masking, and a heating resistor layer is placed on the exposed surface of the insulating layer. is formed by thermal spraying with the spiral top slightly protruding, then a spiral groove is formed in the area where the metal wire is removed, and the inner surface of the groove and the entire surface of the heating resistor layer are coated with ceramic. Covering with an insulating layer, at this time wrapping a filamentous adhesion prevention material in the spiral depression formed on the surface of the ceramic insulating layer, and further coating the surfaces of the insulating layer and the filamentous adhesion prevention material with an f1 adhesion prevention layer, Thereafter, the surface of this anti-adhesion layer is polished to make it smooth, if necessary.
fヤ用
発熱抵抗体層を所定の幅に分離形成するために、中空管
の外側に絶縁層を介して金属線を螺旋状に捲きf寸けて
マスキング部材とし、その上から発熱抵抗体層を溶射に
依って形成し、マスキング材を除去した後の跡の溝の内
面に補強絶縁層を形成し、その際表面に形成される螺旋
状の窪み内に糸状付着防止材を捲き付けた状態で、その
上から付着防止材を塗装するので、その付着防止層表面
におけるマスキング材除去位置に窪みができず、平坦性
のすぐれた付着防止層表面を得る事が出来、表面仕上げ
研磨厚みを極めて薄くすることができ、場合によっては
研磨の必要が無く、高価な付着防止層用樹脂の損失を最
小限に押さえ、コストの安い高性能熱定着ロールを得る
事が出来る。In order to separate and form the heat generating resistor layer for the heat generating resistor to a predetermined width, a metal wire is spirally wound around the outside of the hollow tube through an insulating layer to form a masking member. A layer was formed by thermal spraying, a reinforcing insulating layer was formed on the inner surface of the groove left after the masking material was removed, and a thread-like anti-adhesion material was wrapped in the spiral depression formed on the surface at that time. Since the anti-adhesion material is applied over the surface of the anti-adhesion layer, there is no depression at the position where the masking material is removed on the surface of the anti-adhesion layer, and the surface of the anti-adhesion layer has excellent flatness. It can be made extremely thin, there is no need for polishing in some cases, the loss of the expensive resin for the adhesion prevention layer can be minimized, and a low-cost, high-performance heat fixing roll can be obtained.
実施例
この発明を添付図面の第1図乃至第9図によって説明す
ると、金属製中空管1の表面にアルミナ、マグネシアア
ルミナスピネル等をプラズマ溶射して薄膜状、例えば厚
さ約200μmの絶縁層2を形成し、その外側から金属
線3を螺旋状に捲き付け、その状態でその螺旋状のピッ
チ間における絶縁層2の表面に、例えばニクロム、ステ
ンレス、アルミニウム、アルミロウ、チタニャ・クロミ
ャ混合物、チタニャ・ニクロム混合物シリカ・アルミナ
・ニッケル混合物等を薄膜状に、例えば厚さ約30〜1
00μm程度に溶射トーチ4aで溶射して発熱抵抗体層
4を形成する。Embodiment The present invention will be explained with reference to FIGS. 1 to 9 of the attached drawings. Alumina, magnesia alumina spinel, etc. are plasma sprayed on the surface of a metal hollow tube 1 to form a thin film-like insulating layer, for example, about 200 μm thick. 2, a metal wire 3 is wound spirally from the outside, and in this state, the surface of the insulating layer 2 between the spiral pitches is coated with, for example, nichrome, stainless steel, aluminum, aluminum wax, titanya-chromya mixture, titania.・Nichrome mixture, silica, alumina, nickel mixture, etc. in the form of a thin film, for example, with a thickness of about 30 to 1
The heating resistor layer 4 is formed by thermal spraying to a thickness of approximately 0.00 μm using a thermal spraying torch 4a.
この際、金属線3の頂部3aが発熱抵抗体4の表面に突
出している。この状態は第3図の左側、第4図に示され
ている。At this time, the top portion 3a of the metal wire 3 protrudes from the surface of the heating resistor 4. This condition is shown on the left side of FIG. 3 and in FIG. 4.
次に金属線3を除去してその跡に第5図のごとく溝5を
形成した後、第6図に示すごとく発熱抵抗体層4の表面
および溝5の内面に補強絶縁層6を形成する。この場合
補強絶縁層6は例えばアルミナ、マグネシャアルミナス
ピネル等のセラミック材料をプラズマ溶射等の方法で適
用し、層厚は100〜250μmの膜厚とし、其の際第
6図のように補強絶縁層の表面における前記溝の位置に
、不可否的に形成される螺旋状の窪み7に、第7図のご
とく例えば50〜200μmのPFAモノフィラメント
等からなる糸状付着防止材8を捲き付け、それらの上か
ら例えばPFA樹脂などを粉体塗装などの方法で塗装し
て、第8図のように付着防止層9を形成する、この際糸
状付着防止材8の外側に形成される温かの突条10を研
磨して第9図のように滑らかにする。Next, after removing the metal wire 3 and forming a groove 5 in its trace as shown in FIG. 5, a reinforcing insulating layer 6 is formed on the surface of the heating resistor layer 4 and the inner surface of the groove 5 as shown in FIG. . In this case, the reinforcing insulating layer 6 is made of a ceramic material such as alumina or magnesia alumina spinel by plasma spraying or the like, with a thickness of 100 to 250 μm, and as shown in FIG. As shown in FIG. 7, thread-like anti-adhesion material 8 made of PFA monofilament or the like with a thickness of 50 to 200 μm is wrapped around the spiral depression 7 that is inevitably formed at the position of the groove on the surface of the layer. For example, a PFA resin or the like is applied from above using a method such as powder coating to form an anti-adhesion layer 9 as shown in FIG. Polish it to make it smooth as shown in Figure 9.
このようにして得られた第9図に示したような定着ロー
ルは、使用目的によっては直ちに研磨なしに使用するこ
とが出来るし、研磨して使用する場合でも、前記従来の
方法と比較して極めて1か研磨するだけで済み、極めて
少ないコストで直熱型定着ロールを製造することを可能
としたものである。The fixing roll obtained in this way as shown in FIG. 9 can be used immediately without polishing depending on the purpose of use, or even if it is used after polishing, compared to the conventional method described above. Only one polishing step is required, making it possible to manufacture a direct heating type fixing roll at an extremely low cost.
なお付着防止層の材質はPFA等の弗素樹脂だけに限定
されるものでなく、例えばシリコン系その他の付着防止
性能にすぐれた樹脂を利用することができ、適用方法も
粉体塗装だけに限定されるものでなく、それ以外に周知
の液体塗装等を適用することが出来る。The material of the anti-adhesion layer is not limited to fluororesins such as PFA, but silicone-based and other resins with excellent anti-adhesion properties can also be used, and the method of application is not limited to powder coating. Other than that, well-known liquid coating etc. can be applied.
糸状付着防止材8の材質もPFAモノフィラメントのみ
に限定されるものではなく、主に熱可塑性樹脂を使用条
件に応じて選定使用することが出来、ヤーンの方が好結
果が得られる場合もある。一般的には融点の高い樹脂の
ほうが作業のフレキシビリティはよい。The material of the filamentous adhesion prevention material 8 is not limited to PFA monofilament, but mainly thermoplastic resins can be selected and used depending on the conditions of use, and yarn may provide better results in some cases. Generally, resins with higher melting points have better work flexibility.
以上本発明を第1図ないし第9図の実施例について説明
したが、本発明はそれに限定されるものでなく、例えば
同実施例のように金属線3を第1図及び第3図に示す如
く、螺旋状に巻きけける際これを第10図のように二重
螺旋状に巻き付け、その後金属線3相互の間に形成され
る発熱抵抗体層4を第11図のように二重ねじ状に形成
し、相隣接する発熱抵抗体層4を流れる電流の向きを、
互いに逆向きにする場合のように、本発明の要旨の範囲
内において一部分を多少変更して実施する場合もある。Although the present invention has been described above with reference to the embodiments shown in FIGS. 1 to 9, the present invention is not limited thereto. For example, the metal wire 3 is shown in FIGS. 1 and 3 as in the same embodiment. When winding it spirally, it is wound in a double spiral as shown in FIG. The direction of the current flowing through the adjacent heating resistor layers 4 is
Within the scope of the gist of the present invention, some portions may be slightly modified and implemented, such as when they are oriented in opposite directions.
これに対し、前記従来の方法は第12図に示すように中
空管11の表面に絶縁層12を形成し、その上に金属線
(図示してない)を螺旋状に捲き付け、これをマスキン
グ材としてそれらの上に発熱抵抗体層14を形成し、前
記金属線を取り外しその跡の渭および発熱抵抗体層の上
から溶射などにより補強絶縁層15を形成し、更にその
上から塗装により弗素樹脂などの付着防止層16を形成
し、その後付着防止層16を第13図の平滑面17の位
置まで研磨していたがその時、第12図に示すごとく1
寸着防止層16の表面には螺旋状の1条16aが不可避
的に形成され、その1条16aの幅Cよりその他の部分
の幅dの方がはるかに大きいので、定着ロールの全長に
互って研磨する際の付着防止層16の研磨量は多くなる
。これは前記金属線が絶縁層12に密着しないので、確
実なマスキング効果を得るためには350〜700μm
の線幅を適用せざるを得す、前記溝の幅が400〜75
0μm程度となってしまい、これに強度、耐久と付着防
止の目的から必要とされる膜厚の付着防止層ないしは補
強絶縁層ど付着防止層を形成しても、研磨前のロール表
面に1条16aが不可避的に形成されてしまうからであ
る。In contrast, in the conventional method, as shown in FIG. 12, an insulating layer 12 is formed on the surface of a hollow tube 11, and a metal wire (not shown) is wound spirally on the insulating layer 12. A heat generating resistor layer 14 is formed on them as a masking material, the metal wire is removed, a reinforcing insulating layer 15 is formed by thermal spraying on the remaining edge and the heat generating resistor layer, and furthermore, by painting. An anti-adhesion layer 16 made of fluororesin or the like was formed, and then the anti-adhesion layer 16 was polished to the level of the smooth surface 17 shown in FIG. 13. At that time, as shown in FIG.
A spiral thread 16a is inevitably formed on the surface of the adhesion prevention layer 16, and the width d of the other portion is much larger than the width C of the single thread 16a. When polishing, the amount of polishing of the anti-adhesion layer 16 increases. This is because the metal wire does not adhere closely to the insulating layer 12, so in order to obtain a reliable masking effect, a thickness of 350 to 700 μm is required.
If the width of the groove is between 400 and 75,
Even if an anti-adhesive layer or a reinforcing insulating layer is formed with the thickness required for strength, durability, and anti-adhesion purposes, there will be one strip on the roll surface before polishing. This is because 16a is inevitably formed.
効果
この発明は上述のとうりであるから、付着防止層の表面
を研磨する際における付着防止層の研磨量を、前記従来
の方法と比較して極めて少なくすることが出来、場合に
よっては研磨なしで完成品を得る事も出来る。Effects Since this invention is as described above, the amount of polishing of the anti-adhesion layer when polishing the surface of the anti-adhesion layer can be extremely reduced compared to the conventional method, and in some cases, no polishing is required. You can also get a finished product.
第1図は絶縁層の表面に糸状防止材を捲き付ける状態を
示す一部切断正面図、第2図は第1図の一部分の拡大断
面図、第3図はは発熱抵抗体層を溶射するさいの正面図
、第4図は第3Uf!Uの一部分の拡大断面図、第5図
は発熱抵抗体層に溝を形成した状態の断面図、第6図は
補強絶縁層の加工終了時の断面図、第7図は糸状付着防
止材を捲き付けた後の断面図、第8図は付着防止層の加
工が終わった時点における断面図、第9図は付着防止層
の研磨が終わった時点の断面図、第10図は他の実施例
の正面図、第11図は第10図の他の状態における正面
図、又第12図は従来の製造方法における一部分の拡大
断面図、第13図は間部の池の状態を示す断面図である
。
1・・中空管
2・・絶縁層
3・・金属線
4・・発熱抵抗体層
5・・渭
6・・補強絶縁層
7・・窪み
8・・糸状付着防止材
9・・付着防止層
10・・突条Figure 1 is a partially cutaway front view showing the state in which the filament prevention material is wrapped around the surface of the insulating layer, Figure 2 is an enlarged cross-sectional view of a portion of Figure 1, and Figure 3 is the thermal spraying of the heating resistor layer. The front view of the die, Figure 4 is 3rd Uf! An enlarged sectional view of a part of U, Fig. 5 is a sectional view of the heating resistor layer with grooves formed, Fig. 6 is a sectional view of the reinforcing insulating layer after processing, and Fig. 7 shows the filamentous adhesion prevention material. A cross-sectional view after wrapping, FIG. 8 is a cross-sectional view after the processing of the anti-adhesion layer is completed, FIG. 9 is a cross-sectional view after the polishing of the anti-adhesion layer is completed, and FIG. 10 is another example. FIG. 11 is a front view of another state of FIG. 10, FIG. 12 is an enlarged sectional view of a part in the conventional manufacturing method, and FIG. 13 is a sectional view showing the state of the pond in the middle. be. 1...Hollow tube 2...Insulating layer 3...Metal wire 4...Heating resistor layer 5...Way 6...Reinforcement insulating layer 7...Indentation 8...Thread-like adhesion prevention material 9...Adhesion prevention layer 10... protrusion
Claims (1)
螺旋状に捲き付けてマスキングし、該絶縁層の表面の露
出面に発熱抵抗体層を熔射によって形成し、前記金属線
を除去してその跡に螺旋状の溝を形成し、該発熱抵抗体
層の表面及び螺旋状の溝の内面をセラミック絶縁層で被
覆して補強絶縁層とし、その補強絶縁層の表面に形成さ
れる螺旋状窪み内に糸状付着防止材を捲き付け、その後
補強絶縁層及び糸状付着防止材の上を付着防止層で被覆
することを特徴とする複写機用熱定着ロールの製造方法
。1. An insulating layer is formed on the outside of the hollow tube, a metal wire is wound spirally on the insulating layer for masking, a heating resistor layer is formed by spraying on the exposed surface of the insulating layer, and the metal The wire is removed, a spiral groove is formed in its trace, the surface of the heating resistor layer and the inner surface of the spiral groove are covered with a ceramic insulating layer to form a reinforcing insulating layer, and the surface of the reinforcing insulating layer is covered with a ceramic insulating layer. A method for manufacturing a heat fixing roll for a copying machine, comprising the steps of: wrapping a filamentous anti-adhesion material in the spiral depressions to be formed, and then covering a reinforcing insulating layer and the filamentous anti-adhesion material with an anti-adhesion layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27405587A JPH01116584A (en) | 1987-10-29 | 1987-10-29 | Production of heat fixing roll for copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27405587A JPH01116584A (en) | 1987-10-29 | 1987-10-29 | Production of heat fixing roll for copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01116584A true JPH01116584A (en) | 1989-05-09 |
Family
ID=17536338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27405587A Pending JPH01116584A (en) | 1987-10-29 | 1987-10-29 | Production of heat fixing roll for copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01116584A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006344532A (en) * | 2005-06-09 | 2006-12-21 | Taisei Laminator Co Ltd | Heating roller |
JP2012022934A (en) * | 2010-07-15 | 2012-02-02 | Fuji Electric Co Ltd | Induction heating apparatus and double tube for the same |
-
1987
- 1987-10-29 JP JP27405587A patent/JPH01116584A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006344532A (en) * | 2005-06-09 | 2006-12-21 | Taisei Laminator Co Ltd | Heating roller |
JP2012022934A (en) * | 2010-07-15 | 2012-02-02 | Fuji Electric Co Ltd | Induction heating apparatus and double tube for the same |
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