JPH0414410A - Rotor for kneader - Google Patents
Rotor for kneaderInfo
- Publication number
- JPH0414410A JPH0414410A JP2118113A JP11811390A JPH0414410A JP H0414410 A JPH0414410 A JP H0414410A JP 2118113 A JP2118113 A JP 2118113A JP 11811390 A JP11811390 A JP 11811390A JP H0414410 A JPH0414410 A JP H0414410A
- Authority
- JP
- Japan
- Prior art keywords
- kneading
- blade
- layer
- abrasion
- rotor
- 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
- 238000004898 kneading Methods 0.000 claims abstract description 38
- 238000007747 plating Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 20
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000010285 flame spraying Methods 0.000 abstract 5
- 229910052804 chromium Inorganic materials 0.000 abstract 3
- 239000011651 chromium Substances 0.000 abstract 3
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 34
- 239000002994 raw material Substances 0.000 description 12
- 239000011247 coating layer Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は混練機のロータの耐摩耗性改善に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to improving the wear resistance of a kneader rotor.
（従来の技術）
各種プラスチック、ゴム等の原料樹脂と強化材料の副原
料との混練に際しては、既知のように原料の供給、混練
、排出を連続的に行う混練機が使用されている。混線機
は、第２図に示すように、一端に原料供給口２を備え、
他端に混線物の排出口３を備えたチャンバ！内に、通常
、２本のロータ４が平行かつ反対方向に可回動であるよ
うに配置されている。尚、図においては、ロータが前後
に重なっているため１本に見えている。前記ロータ４は
、螺線翼５が突設されたフィード部６と、材料を前方へ
送るための送り翼７と材料を後方へ戻すための戻し翼８
とからなる混練翼を備えた混練部９とが軸方向に沿って
連成されており、前記原料供給口２がフィード部６の上
に位置している。(Prior Art) When kneading raw material resins such as various plastics and rubbers with auxiliary raw materials for reinforcing materials, a kneading machine that continuously supplies, kneads, and discharges the raw materials is used as is known. As shown in FIG. 2, the mixer is equipped with a raw material supply port 2 at one end,
A chamber with a contaminant discharge port 3 at the other end! Therein, two rotors 4 are usually arranged so as to be rotatable in parallel and opposite directions. In the figure, the rotors appear to be one rotor because they are overlapped one after the other. The rotor 4 includes a feed section 6 on which a spiral blade 5 is protruded, a feed blade 7 for sending the material forward, and a return blade 8 for returning the material to the rear.
A kneading section 9 equipped with kneading blades consisting of a kneading section 9 and a kneading section 9 are connected along the axial direction, and the raw material supply port 2 is located above the feed section 6.
フィード部６の後部には駆動軸部ＩＯが形成され、螺線
翼５の混練部側の翼面ば、原料を混練部側へ送り出す作
用面として機能する。尚、混練機には、上記ロータが２
本の２軸型のほか、ロータが１本の１軸型のものもある
。A drive shaft portion IO is formed at the rear of the feed portion 6, and the blade surface of the spiral blade 5 on the kneading portion side functions as a working surface for feeding the raw material to the kneading portion side. The kneading machine has two rotors.
In addition to the two-shaft type, there is also a single-shaft type with one rotor.
混線機のロータには、耐食性や耐摩耗性が要求され、こ
のため、従来、原料の接触する混練部９およびフィード
部６の外周面には硬質クロームメッキが施されるのが通
例である。The rotor of the mixing machine is required to have corrosion resistance and wear resistance, and for this reason, it has been customary to plate the outer peripheral surfaces of the kneading section 9 and the feed section 6, which come into contact with raw materials, with hard chrome plating.
（発明が解決しようとする課題）
ところが、メツキの施工上、螺線翼５の付け根部にメン
キが付着しにくく、この部分のメツキ層を厚くすること
ができないため、螺線Ｒ５の混練部側の翼面（作用面）
の付け根部が局部的、選択的に摩耗され易いという問題
がある。特に、混練部より１〜２枚目の螺線翼には、混
練時にかかる圧力が大きいため、その傾向が著しい。(Problem to be Solved by the Invention) However, during plating construction, it is difficult for plating to adhere to the base of the spiral blade 5, and it is not possible to thicken the plating layer in this area. Wing surface (action surface)
There is a problem in that the base of the blade is easily worn locally and selectively. In particular, this tendency is remarkable because the pressure applied to the first and second spiral blades from the kneading section during kneading is large.
本発明はかかる問題に鑑みなされたもので、フィード部
の螺線翼の混練部側の付け根部の耐摩耗性を向上させる
手段を提供することを目的とするものである。The present invention was made in view of this problem, and an object of the present invention is to provide a means for improving the wear resistance of the root portion of the spiral blade of the feed section on the kneading section side.
（課題を解決するための手段）
上記目的を連成するためになされた本発明の混練機用ロ
ータは、螺線翼５が突設されたフィー１部６と混練翼が
形成された混練部９とがロータ軸方向に連成された混練
機用ロータにおいて、前記螺線翼５の混練部側の付け根
部５Ａ′ｖ、：耐摩耗材の溶射Ｎ１１が形成され、かつ
該溶射層１１を含むフィト部６および混練部９の外周面
全体に硬質クロームメッキ層１２が形成されていること
を発明の構成とするものである。(Means for Solving the Problems) A rotor for a kneading machine according to the present invention, which has been made in order to couple the above objects, has a feed part 6 in which spiral blades 5 are protruded, and a kneading part in which kneading blades are formed. 9 coupled in the rotor axial direction, the root portion 5A'v of the spiral blade 5 on the kneading section side: a sprayed N11 of wear-resistant material is formed and includes the sprayed layer 11. The structure of the invention is that a hard chrome plating layer 12 is formed on the entire outer peripheral surface of the fit section 6 and the kneading section 9.
（作 用）
螺線翼の混練部側の付け根部Ｑこは、硬質クロームメッ
キ層の下に耐摩耗材で形成された溶射層が形成されてい
るので、メンキ層が薄くても、母材は前記溶射層によっ
て保護されているため、この部分の局部的、選択的摩耗
を有効に阻止することができる。(Function) At the root Q of the spiral blade on the kneading section side, a sprayed layer made of wear-resistant material is formed under the hard chrome plating layer, so even if the coating layer is thin, the base material remains intact. Since it is protected by the sprayed layer, local and selective wear of this portion can be effectively prevented.
また、耐摩耗材の溶射層は、高硬度であり、また屈曲面
に形成されるので、これを直接研摩することにより、原
料を円滑に送ることができる低摩擦係数の平滑面を得る
ことは困難であるが、本発明では溶射層の」二にメツキ
層が形成されているため、ハフ仕上により容易に平滑曲
面を得ることができる。In addition, since the sprayed layer of wear-resistant material has high hardness and is formed on a curved surface, it is difficult to directly polish it to obtain a smooth surface with a low coefficient of friction that allows the raw material to be fed smoothly. However, in the present invention, since a plating layer is formed on the second side of the thermal sprayed layer, a smooth curved surface can be easily obtained by Hough finishing.
更に、螺線翼の付け根部の曲面に対しては、溶射方向を
該曲面の法線方向に近付けて溶射することができるため
、施行が容易で、密着強度の高い溶射層を容易に形成す
ることができる。Furthermore, since it is possible to spray the curved surface at the root of the spiral blade with the spraying direction close to the normal direction of the curved surface, it is easy to apply and it is easy to form a sprayed layer with high adhesion strength. be able to.
（実施例）
第１図は実施例に係る混練機用ロータの要部拡大断面で
あり、螺線翼５が突設されたフィーｌ一部６および該フ
ィート部６に連成された混練部９の送り翼７の開始部７
Ａが図示されている。尚、ロタの構造自体は、第２図と
同様であり、同し部分は同じ符号で示している。(Example) FIG. 1 is an enlarged cross-section of a main part of a rotor for a kneader according to an example, and shows a feel part 6 from which spiral blades 5 are protruded and a kneading part connected to the foot part 6. Starting part 7 of feed blade 7 of 9
A is shown. The structure of the rotor itself is the same as that shown in FIG. 2, and the same parts are indicated by the same reference numerals.
混練機用ロータは、焼入れ熱処理の可能な、例えばＳＣ
Ｍ４４０等のクロムモリブデン鋼鋼材やＳ［ｌ５４２０
等のマルテンサイト系ステンレス鋼で製作され、焼入れ
熱処理が施されている。そして、図示例では、各々の螺
線翼５の前後方向の翼面の伺は根部５Ａ、 ５Ｂ並びに
混練翼のうち最も摩耗し易い送り翼７の開始部禄の曲面
に沿って耐摩耗材の溶射層１１が形成されている。The rotor for the kneading machine is a rotor that can be quenched and heat treated, for example, SC.
Chrome molybdenum steel materials such as M440 and S[l5420
Manufactured from martensitic stainless steel such as, etc., and subjected to quenching heat treatment. In the illustrated example, a wear-resistant material is thermally sprayed along the curved surface of the blade surface of each spiral blade 5 in the front-rear direction along the root portions 5A and 5B and the curved surface of the starting portion of the feeder blade 7, which is the most likely to wear out of the kneading blades. A layer 11 is formed.
耐摩耗材の溶射層１１は、ＷＣやＶＣ等の高硬度粉末と
Ｃｏ系合金等のバインダー金属粉末とを高エネルギーガ
ス溶射等により母材表面に溶射して形成されている。溶
射層の形成に際しては、母材表面に耐摩耗材を溶射して
も、表面温度は２００”Ｃ程度以下と高温にならないた
め、母材の焼入れ組織が軟化せず好適である。溶射層１
１の厚さは、通常、０ＩＩＷ１程度が最適であるが、原
料の種類（摩耗性）、耐摩耗性の要求程度（寿命）によ
り適宜設定することができる。The sprayed layer 11 of wear-resistant material is formed by spraying high hardness powder such as WC or VC and binder metal powder such as Co-based alloy onto the surface of the base material by high-energy gas spraying or the like. When forming the sprayed layer, even if the wear-resistant material is sprayed onto the surface of the base material, the surface temperature will not reach a high temperature of about 200"C or less, so the quenched structure of the base material will not soften, making it suitable.Thermal sprayed layer 1
The thickness of 1 is usually optimally about 0IIW1, but it can be set as appropriate depending on the type of raw material (abrasion resistance) and the required degree of abrasion resistance (life span).
前記溶射層１１を含むフィート部６および混練翼の外周
全面には、図中２点鎖線で示すように硬質クロームメン
キ層１２が形成されている。更に、該メツキ層１２は、
駆動軸部１０のシーつし材（図示省略）の手前まで形成
されている。この部分まで樹脂が入り込むおそれがある
からである。メツキ層１２の厚さは、前記溶射層１１と
同様の考え方で決定される。前記溶射層１１にメンキを
施す場合、メツキの乗りを良くするため溶射層１１の表
面を表面粗さ６Ｂ程度に研摩しておくとよい。この程度
の加工は容易である。メンキ後、メツキ層１２の表面を
ノ＜フ研摩するだけで、表面粗さ１．６Ｓ以下の高精度
の平滑面が容易に得られる。A hard chrome coating layer 12 is formed on the entire outer periphery of the foot portion 6 and the kneading blade including the thermal sprayed layer 11, as shown by the two-dot chain line in the figure. Furthermore, the plating layer 12 is
It is formed up to this side of the sheeting material (not shown) of the drive shaft portion 10. This is because there is a possibility that the resin will penetrate into this part. The thickness of the plating layer 12 is determined in the same way as the thermal spray layer 11 described above. When applying plating to the thermal sprayed layer 11, the surface of the thermal sprayed layer 11 is preferably polished to a surface roughness of about 6B in order to improve the plating coverage. This level of processing is easy. After polishing, a highly accurate smooth surface with a surface roughness of 1.6S or less can be easily obtained by simply polishing the surface of the plating layer 12.
溶射層１１を形成する領域は、上記実施例の部位に限ら
ず、原料の摩耗性、耐摩耗性の要求程度、コスト等を勘
案して、摩耗の激しい特定の螺線翼５（通常は送り真個
の１〜２枚の螺線翼）の送り真個の翼面の付け根部５Ａ
に限ってもよい。The area where the sprayed layer 11 is formed is not limited to the area in the above embodiment, but is determined by taking into account the abrasion properties of the raw materials, the required degree of abrasion resistance, cost, etc. Root part 5A of the blade surface of the feeding blade (1 or 2 spiral blades)
may be limited to.
また、本発明の耐摩耗性向上手段は、二軸混練機のみな
らず単軸混練機のロータにも適用可能なことは勿論であ
る。Furthermore, it goes without saying that the means for improving wear resistance of the present invention can be applied not only to the rotor of a twin-screw kneader but also to a rotor of a single-screw kneader.
尚、本発明は単軸、二軸押出機のスクリューに対しても
転用可能である。また、溶射層表面以外の部分にメツキ
層を形成するだけでも、耐摩耗性の向上が期待できる。Note that the present invention can also be applied to the screws of single-screw and twin-screw extruders. Furthermore, simply forming a plating layer on parts other than the surface of the sprayed layer can also be expected to improve wear resistance.
この場合、容射層の表面を平滑に研摩するのは困難なの
で、溶射のまま乃至６３程度の表面粗さに止められるた
め、本発明に比べて原料の送り抵抗の増大が否めない。In this case, since it is difficult to polish the surface of the sprayed layer to a smooth surface, the surface roughness is limited to as-sprayed or about 63 degrees, so that the feeding resistance of the raw material is undeniably increased compared to the present invention.
（発明の効果）
以上説明した通り、本発明の混練機用ロータは、螺線翼
の混練部側の付け根部には、硬質クロームメッキ層の下
に耐摩耗材の溶射層が形成されているので、メンキ層が
薄くても、該溶射層によって母材が保護され、この部分
の局部的、選択的摩耗を有効に阻止することができる。(Effects of the Invention) As explained above, in the rotor for a kneading machine of the present invention, a sprayed layer of wear-resistant material is formed under the hard chrome plating layer at the root of the spiral blade on the kneading section side. Even if the coating layer is thin, the base material is protected by the sprayed layer, and local and selective wear in this area can be effectively prevented.
また、溶射層の上にはメツキ層が形成されているため、
ハフ研摩により容易に高精度の平滑面が得られ、原料の
送り抵抗を増大させるおそれがない。更に、溶射層は、
特定の部位に限って形成したので、その法線方向から容
易に溶射することができ、施行が容易で、密着強度の高
い溶射層を容易に形成することができる。In addition, since a plating layer is formed on the sprayed layer,
A highly accurate smooth surface can be easily obtained by Hough polishing, and there is no risk of increasing the feeding resistance of the raw material. Furthermore, the sprayed layer is
Since it is formed only on a specific part, it can be easily sprayed from the normal direction, and a sprayed layer with high adhesion strength can be easily formed.
第１図は実施例の混線線用ロータの要部断面図、第２図
は混練機の断面図を示す。
５・・・螺線翼、５Ａ・・・混練部側の付け根部、６・
・・フィード部、９・・・混練部、１１・・・溶射層、
１２・・・硬質クロームメッキ層。FIG. 1 is a sectional view of a main part of a rotor for cross-conducting wires according to an embodiment, and FIG. 2 is a sectional view of a kneading machine. 5... Spiral blade, 5A... Root part on the kneading section side, 6.
... Feed section, 9... Kneading section, 11... Thermal spray layer,
12...Hard chrome plating layer.
Claims (1)
練翼が形成された混練部（９）とがロータ軸方向に連成
された混練機用ロータにおいて、 前記螺線翼（５）の混練部側の付け根部（５Ａ）に耐摩
耗材の溶射層（１１）が形成され、かつ該溶射層（１１
）を含むフィード部（６）および混練部（９）の外周面
全体に硬質クロームメッキ層（１２）が形成されている
ことを特徴とする混練機用ロータ。(1) A rotor for a kneader in which a feed section (6) on which a spiral blade (5) is protruded and a kneading section (9) on which a kneading blade is formed are coupled in the rotor axial direction, wherein the spiral blade A sprayed layer (11) of wear-resistant material is formed at the root (5A) of the blade (5) on the side of the kneading section, and the sprayed layer (11)
) A rotor for a kneader, characterized in that a hard chrome plating layer (12) is formed on the entire outer peripheral surface of a feed section (6) and a kneading section (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2118113A JP2638256B2 (en) | 1990-05-07 | 1990-05-07 | Kneader rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2118113A JP2638256B2 (en) | 1990-05-07 | 1990-05-07 | Kneader rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0414410A true JPH0414410A (en) | 1992-01-20 |
| JP2638256B2 JP2638256B2 (en) | 1997-08-06 |
Family
ID=14728350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2118113A Expired - Fee Related JP2638256B2 (en) | 1990-05-07 | 1990-05-07 | Kneader rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2638256B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997013001A1 (en) * | 1995-10-04 | 1997-04-10 | Engel Maschinenbau Gesellschaft Mbh | Process for producing a coating on the surface of plastifier screws for injection-moulding machines |
| WO1997013004A1 (en) * | 1995-10-04 | 1997-04-10 | Engel Maschinenbau Gesellschaft Mbh | Process for manufacturing wear- and corrosion-protected surfaces on plastifier screws for injection moulding machines |
| WO2014024383A1 (en) * | 2012-08-07 | 2014-02-13 | 株式会社神戸製鋼所 | Member in contact with rubber material |
| CN110614044A (en) * | 2019-10-16 | 2019-12-27 | 上海沃骋有色金属有限公司 | Use thoughtlessly to hold between fingers equipment of nanometer coating |
| JP2022170004A (en) * | 2021-04-28 | 2022-11-10 | 株式会社神戸製鋼所 | Kneading rotor, kneader, method for kneading rubber material, and method for manufacturing kneading rotor |
-
1990
- 1990-05-07 JP JP2118113A patent/JP2638256B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997013001A1 (en) * | 1995-10-04 | 1997-04-10 | Engel Maschinenbau Gesellschaft Mbh | Process for producing a coating on the surface of plastifier screws for injection-moulding machines |
| WO1997013004A1 (en) * | 1995-10-04 | 1997-04-10 | Engel Maschinenbau Gesellschaft Mbh | Process for manufacturing wear- and corrosion-protected surfaces on plastifier screws for injection moulding machines |
| US5855963A (en) * | 1995-10-04 | 1999-01-05 | Engel Machinenbau Gesellschaft M.B.H. | Process for the production of a coating on the surface of plasticizing screws for injection molding machines |
| US5968603A (en) * | 1995-10-04 | 1999-10-19 | Engel Maschinenbau Gesellschaft M.B.H. | Process for the production of wear-protected and corrosion-protected surfaces on plasticizing screws for injection molding machines |
| WO2014024383A1 (en) * | 2012-08-07 | 2014-02-13 | 株式会社神戸製鋼所 | Member in contact with rubber material |
| JP2014034123A (en) * | 2012-08-07 | 2014-02-24 | Kobe Steel Ltd | Member contacting with rubber material |
| CN104520084A (en) * | 2012-08-07 | 2015-04-15 | 株式会社神户制钢所 | Components in contact with rubber materials |
| DE112013003926B4 (en) | 2012-08-07 | 2022-02-17 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Component in a rubber processing device |
| CN110614044A (en) * | 2019-10-16 | 2019-12-27 | 上海沃骋有色金属有限公司 | Use thoughtlessly to hold between fingers equipment of nanometer coating |
| JP2022170004A (en) * | 2021-04-28 | 2022-11-10 | 株式会社神戸製鋼所 | Kneading rotor, kneader, method for kneading rubber material, and method for manufacturing kneading rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2638256B2 (en) | 1997-08-06 |
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