JPH0683890B2 - Method for manufacturing wear resistant member for molding machine - Google Patents
Method for manufacturing wear resistant member for molding machineInfo
- Publication number
- JPH0683890B2 JPH0683890B2 JP59058974A JP5897484A JPH0683890B2 JP H0683890 B2 JPH0683890 B2 JP H0683890B2 JP 59058974 A JP59058974 A JP 59058974A JP 5897484 A JP5897484 A JP 5897484A JP H0683890 B2 JPH0683890 B2 JP H0683890B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- powder
- metal
- molded body
- compact
- 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.)
- Expired - Lifetime
Links
- 238000000465 moulding Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title description 5
- 239000000463 material Substances 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 description 10
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 8
- 229910000990 Ni alloy Inorganic materials 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000005121 nitriding Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000009750 centrifugal casting Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 102220061996 rs786203944 Human genes 0.000 description 2
- 238000007751 thermal spraying Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/62—Barrels or cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/507—Screws characterised by the material or their manufacturing process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/68—Barrels or cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
- B29K2909/02—Ceramics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 〔発明の属する技術分野〕 本発明はプラスチックスおよびセラミックス成形機（以
下単に成形機という）におけるシリンダやスクリュ等の
耐摩耗部材の製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing wear-resistant members such as cylinders and screws in plastics and ceramics molding machines (hereinafter simply referred to as molding machines).
成形機のシリンダやスクリュ等は耐摩耗性を上げその寿
命を伸ばすため従来から窒化処理が行なわれてきたが、
窒化層の厚さは0.5mm以下と薄いため成形原料にガラス
繊維やセラミックス粉等の添加材が含まれると摩耗によ
り早期に使用不可能になった。このほか耐摩耗性を付与
するために溶射や肉盛或いは遠心鋳造等の手段がある
が、溶射や肉盛はシリンダの内径部が長さに対して小な
る場合は処理不可能であった。また遠心鋳造は一軸シリ
ンダについては処理可能であるが２軸形式のシリンダに
対しては処理不可能であった。The cylinders and screws of molding machines have been conventionally subjected to nitriding treatment to improve wear resistance and extend their life.
Since the thickness of the nitrided layer is as thin as 0.5 mm or less, if the molding raw material contained additives such as glass fiber and ceramic powder, it became unusable early due to wear. In addition, there are means such as thermal spraying, overlaying or centrifugal casting for imparting wear resistance, but thermal spraying or overlaying cannot be processed when the inner diameter of the cylinder is smaller than the length. Further, centrifugal casting can process single-axis cylinders but cannot process double-axis cylinders.
本発明はこのような観点からなされたものでその目的
は、硬化層を厚くすることにより寿命の長いことならび
に如何なる形状にも成形可能な成形機用耐摩耗部材の製
造方法を提供することにある。The present invention has been made from such a point of view, and an object thereof is to provide a method for manufacturing a wear-resistant member for a molding machine, which has a long life by thickening a hardened layer and can be molded into any shape. .
本発明における成形機の耐摩耗部材は、硬質粒子の成形
体或いは粉体を基材に接触させて配置或いは充填すると
共に、成形体等および基材よりも融点の低い金属を成形
体等および基材の上面或いは下面に配置し、これらの成
形体等と基材そして金属を金属の融点以上かつ成形体等
の融点以下の温度にて無酸化雰囲気中で加熱することに
より、溶融した金属を成形体等に浸透させると共に基材
に拡散接合させるようにしたことを特徴にしている。The wear-resistant member of the molding machine according to the present invention is arranged or filled by bringing a molded body or powder of hard particles into contact with a base material, and a metal having a lower melting point than the molded body or the base material and A molten metal is formed by placing it on the upper or lower surface of a material and heating these compacts, etc., base material, and metal in a non-oxidizing atmosphere at a temperature above the melting point of the metal and below the melting point of the compact. It is characterized in that it is permeated into the body and the like and is diffusion-bonded to the base material.
以下本発明について一実施例を示した第１図により説明
する。基材11はS20C等のように必要な強度の得られる材
料が使用され図は２軸形式のシリンダを例にしてある。
基材11と中子12は何れもトレイ13上に載置されており、
基材11と中子12との間にはWC,MoB,VCそしてTiC等の硬度
の高いセラミックス粉体14が入れてあり、基材11と粉体
14の上部には表１に示すような自溶性合金である金属15
が治具16に囲まれて配置されている。ここで金属15の融
点は基材11および粉末14のそれより低くなっている。な
お前述の説明では粉体14として説明したが粉体のほかに
加圧成形した成形体でもよい。この成形体の場合中子12
は必ずしも必要ではない。また前述の説明で金属15は粉
体14等の上面に置いたが下面に設置してもよい。The present invention will be described below with reference to FIG. 1 showing an embodiment. The base material 11 is made of a material such as S20C that can provide the necessary strength, and the figure shows a biaxial cylinder as an example.
Both the base material 11 and the core 12 are placed on the tray 13,
Between the base material 11 and the core 12, a ceramic powder 14 with high hardness such as WC, MoB, VC and TiC is placed.
Above the 14 is a metal 15 which is a self-fluxing alloy as shown in Table 1.
Are surrounded by the jig 16. Here, the melting point of the metal 15 is lower than that of the base material 11 and the powder 14. Although the powder 14 has been described in the above description, a pressure-molded compact may be used in addition to the powder. In the case of this molded body, core 12
Is not always necessary. Although the metal 15 is placed on the upper surface of the powder 14 or the like in the above description, it may be placed on the lower surface.
次に数値を記入した例により説明する。 Next, an example in which numerical values are entered will be described.
例１ この例は２軸シリンダであって図に示すように、S20Cの
基材11の内側に250メッシュ以下の粒度のWC粉末を2mm厚
さに圧縮した成形体14を基材11に接して配置し、基材11
と成形体14の上部に表２上欄に示したNi基自溶性合金の
金属15を900g配置した。この基材11と粉体14をアルミナ
製のトレイ13上に配置する。なお中子12は成形体14であ
るから使用しない。次いでこれらを無酸化雰囲気にする
ため真空度0.05torrの真空炉に入れ1080℃にて20分間保
持した後真空中で室温まで冷却する。この加熱により金
属15は溶解して成形体14中に浸透する。冷却後成形体14
の内径等必要部分を機械加工すると共に基材11を必要に
応じては熱処理を行う。Example 1 In this example, a biaxial cylinder is used. As shown in the figure, a molded body 14 obtained by compressing WC powder having a grain size of 250 mesh or less to a thickness of 2 mm inside the base material 11 of S20C is brought into contact with the base material 11. Place and base 11
900 g of the metal 15 of the Ni-based self-fluxing alloy shown in the upper column of Table 2 was placed on the top of the molded body 14. The base material 11 and the powder 14 are placed on an alumina tray 13. Since the core 12 is the molded body 14, it is not used. Then, in order to make them non-oxidizing atmosphere, they are placed in a vacuum furnace with a vacuum degree of 0.05 torr, kept at 1080 ° C. for 20 minutes, and then cooled to room temperature in vacuum. By this heating, the metal 15 is melted and penetrates into the molded body 14. Molded body after cooling 14
A necessary portion such as the inner diameter of the base material 11 is machined, and the base material 11 is heat-treated if necessary.
このようにして得られたシリンダの内面は炭化タングス
テンとNi合金の複合体であり、Ni合金のマトリックス中
に炭化タングステンの粒子が均一に分布した理想的な組
織を示しており、この複合体は基材11に約20μｍの拡散
層を介して強固に金属結合している。そして複合体の加
工後の厚さは1.80mmであって硬度はHV730ないし1200で
あり、複合体中の炭化タングステン粒子の含有率は約60
wt％であった。 The inner surface of the cylinder thus obtained is a composite of tungsten carbide and Ni alloy, showing an ideal structure in which the particles of tungsten carbide are uniformly distributed in the matrix of Ni alloy, and this composite has It is firmly metal-bonded to the base material 11 through a diffusion layer of about 20 μm. The processed composite has a thickness of 1.80 mm and a hardness of HV730 to 1200, and the content of the tungsten carbide particles in the composite is about 60.
It was wt%.
例２ この例は１軸シリンダであって、図に示すようにSCM435
の基材11の内面とアルミナ製の中子12との間に10μｍ粒
度の炭化タングステン粉末650gを粉体14として加振機
（図示せず）により充填する。基材11と粉体14の上部に
表２下欄に示したNi基自溶性合金450gを金属15として治
具16内に配置する。次いで前述した例１と全く同様に加
熱冷却する。このようにした得られたシリンダの内面は
例１と同様に炭化タングステンとNi合金の複合体であ
り、Ni合金のマトリックス中に炭化タングステンの粒子
が均一に分布した組織を示しており、この複合体は基材
11に約20μｍの拡散層を介して強固に金属結合してい
る。そして複合体の加工後の厚さは約1mmであり硬度はH
V850ないし1240を示し、複合体の炭化タングステン含有
率は約60wt％であった。Example 2 This example is a single axis cylinder, and as shown in the figure, SCM435
650 g of tungsten carbide powder having a particle size of 10 μm is charged as powder 14 between the inner surface of the base material 11 and the core 12 made of alumina by a vibrator (not shown). 450 g of the Ni-based self-fluxing alloy shown in the lower column of Table 2 is placed as the metal 15 in the jig 16 on top of the base material 11 and the powder 14. Then, heating and cooling are performed in exactly the same manner as in Example 1 described above. The inner surface of the thus obtained cylinder was a composite of tungsten carbide and a Ni alloy as in Example 1, and showed a structure in which the particles of tungsten carbide were uniformly distributed in the matrix of the Ni alloy. Body is the base material
11 is strongly metal-bonded through a diffusion layer of about 20 μm. And the thickness of the composite after processing is about 1 mm and the hardness is H
V850 to 1240, and the tungsten carbide content of the composite was about 60 wt%.
なお参考写真は例１における複合体の顕微鏡写真であり
金属マトリックス中に炭化タングステン粉末が均一に分
布されていることがわかる。また第２図は従来の窒化処
理と例１および例２を大越式摩耗試験機により行った摩
耗量の結果を示している。なお、耐摩耗性試験の相手材
はSKD11（HRC57）で試験条件は、摩擦距離600m、押しつ
け荷重18.9Kgfである。図中の比摩耗量とは、摩擦距離1
m、押しつけ荷重1Kgf当りの摩耗量である。The reference photograph is a micrograph of the composite in Example 1, and it can be seen that the tungsten carbide powder is uniformly distributed in the metal matrix. Further, FIG. 2 shows the results of the amount of wear when the conventional nitriding treatment and Examples 1 and 2 were carried out by the Ogoshi-type wear tester. The test conditions in the mating material of the abrasion resistance test SKD11 (H R C57), the friction distance 600 meters, a pressing load 18.9Kgf. The specific wear amount in the figure is the friction distance 1
m, wear amount per 1 Kgf of pressing load.
本発明における成形機の耐摩耗材は以上説明したよう
に、基材に接して硬質粒子の成形体等を配置し、基材と
成形体等との上面或いは下面に融点が成形体等より低い
金属を配置した。そして基材と成形体等と金属とを上記
金属の融点より高く成形体等の融点より低い温度に加熱
することにより、金属を成形体等に浸透させると共に基
材に拡散接合させて複合体にした。この複合体は金属マ
トリックス中に硬質粒子が均一に分布されているため硬
度は高く、かつその厚さも従来の窒化処理に比較すると
厚いため耐摩耗材として長期間の使用が可能になった。
さらに上記したように製作しているため如何なる形状の
ものでも製作可能で使用範囲が広い等多くの利点を有す
る。As described above, the wear-resistant material of the molding machine according to the present invention is such that a molded body or the like of hard particles is arranged in contact with a base material, and a metal having a melting point lower than that of the molded body or the like on the upper surface or the lower surface of the base material and the molded body or the like. Was placed. Then, by heating the base material, the molded body, etc. and the metal to a temperature higher than the melting point of the metal and lower than the melting point of the molded body etc., the metal is permeated into the molded body etc. and is diffusion bonded to the base material to form a composite body. did. This composite has high hardness because the hard particles are uniformly distributed in the metal matrix, and its thickness is thicker than that of the conventional nitriding treatment, so that it can be used as a wear resistant material for a long time.
Further, since it is manufactured as described above, it can be manufactured in any shape and has a wide range of use, and has many advantages.
第１図は本発明の一実施例を示す断面図、第２図は従来
例と本発明の摩耗量の比較線図である。 11……基材、14……成形体或いは粉体、15……金属、FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a comparative diagram of the amount of wear of a conventional example and the present invention. 11 …… Base material, 14 …… Molded body or powder, 15 …… Metal,
Claims (1)
させて配置或いは充填すると共に、前記成形体或いは粉
体および基材よりも融点の低い金属を前記成形体或いは
粉体および基材の上面或いは下面に配置し、これらの成
形体或いは粉体，基材ならびに金属を同金属の融点以上
かつ前記成形体或いは粉体および基材の融点以下の温度
にて無酸化雰囲気中で加熱することにより、溶融した前
記金属を前記成形体或いは粉体の層中に浸透させると共
に前記基材に拡散接合させることからなる成形機用耐摩
耗部材の製造方法。1. A hard particle compact or powder is placed or filled in contact with a base material, and a metal having a melting point lower than that of the compact or powder and the base material is added to the compact or powder and the base material. Placed on the upper or lower surface of the material, and heating the compact or powder, the base material and the metal in a non-oxidizing atmosphere at a temperature above the melting point of the metal but below the melting point of the compact or powder and the base material. By doing so, the method for producing a wear-resistant member for a molding machine, which comprises allowing the molten metal to permeate into the layer of the molded body or powder and to diffuse-bond it to the base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59058974A JPH0683890B2 (en) | 1984-03-27 | 1984-03-27 | Method for manufacturing wear resistant member for molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59058974A JPH0683890B2 (en) | 1984-03-27 | 1984-03-27 | Method for manufacturing wear resistant member for molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6192823A JPS6192823A (en) | 1986-05-10 |
| JPH0683890B2 true JPH0683890B2 (en) | 1994-10-26 |
Family
ID=13099818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59058974A Expired - Lifetime JPH0683890B2 (en) | 1984-03-27 | 1984-03-27 | Method for manufacturing wear resistant member for molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0683890B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2620297B2 (en) * | 1988-04-21 | 1997-06-11 | 東芝機械株式会社 | Nozzle for injection molding machine |
| JPH0689380B2 (en) * | 1988-12-07 | 1994-11-09 | 東芝機械株式会社 | Corrosion-resistant wear-resistant member and manufacturing method thereof |
| FR2914206B1 (en) * | 2007-03-27 | 2009-09-04 | Sas Varel Europ Soc Par Action | PROCESS FOR MANUFACTURING A WORKPIECE COMPRISING AT LEAST ONE BLOCK OF DENSE MATERIAL CONSISTING OF HARD PARTICLES DISPERSE IN A BINDER PHASE: APPLICATION TO CUTTING OR DRILLING TOOLS. |
| KR101822276B1 (en) * | 2016-04-28 | 2018-01-25 | 현대자동차주식회사 | Manufacturing method of cylinder block for vehicle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831428A (en) * | 1973-03-26 | 1974-08-27 | Gen Electric | Composite wire drawing die |
| JPS5821320B2 (en) * | 1974-06-25 | 1983-04-28 | シャープ株式会社 | Jido Hanbai Souchi |
| JPS5212126A (en) * | 1975-07-16 | 1977-01-29 | Hitachi Chem Co Ltd | Process for preparation of methacrylic acid |
| JPS5389827A (en) * | 1977-01-18 | 1978-08-08 | Yanmar Diesel Engine Co | Casting wrapping method |
| JPS5798667A (en) * | 1980-12-12 | 1982-06-18 | Hitachi Ltd | Metallic member with high seizuring resistance performance |
| JPS57124564A (en) * | 1981-01-28 | 1982-08-03 | Hitachi Chem Co Ltd | Production of cylinder or piston for internal combustion engine |
| US4600481A (en) * | 1982-12-30 | 1986-07-15 | Eltech Systems Corporation | Aluminum production cell components |
| ATE53863T1 (en) * | 1983-02-16 | 1990-06-15 | Moltech Invent Sa | SINTERED METAL-CERAMIC COMPOSITES AND THEIR PRODUCTION. |
-
1984
- 1984-03-27 JP JP59058974A patent/JPH0683890B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6192823A (en) | 1986-05-10 |
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