JPH0371996A - Cemented carbide die - Google Patents
Cemented carbide dieInfo
- Publication number
- JPH0371996A JPH0371996A JP20795789A JP20795789A JPH0371996A JP H0371996 A JPH0371996 A JP H0371996A JP 20795789 A JP20795789 A JP 20795789A JP 20795789 A JP20795789 A JP 20795789A JP H0371996 A JPH0371996 A JP H0371996A
- Authority
- JP
- Japan
- Prior art keywords
- die
- cemented carbide
- granulation
- small holes
- wear
- 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
- 230000003179 granulation Effects 0.000 claims abstract description 16
- 238000005469 granulation Methods 0.000 claims abstract description 16
- 239000008187 granular material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 229910001080 W alloy Inorganic materials 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910000669 Chrome steel Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/228—Extrusion presses; Dies therefor using pressing means, e.g. rollers moving over a perforated die plate
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Glanulating (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、造粒機に用いられるダイス、特に。[Detailed description of the invention] [Industrial application field] The present invention relates to a die used in a granulator, and particularly to a die used in a granulator.
金属粉若しくは金属炭化物を低水分で造粒する湿式押し
出し造粒機に用いられる超硬合金ダイスに関する。This invention relates to a cemented carbide die used in a wet extrusion granulator for granulating metal powder or metal carbide with low moisture content.
［従来の技術］
従来、造粒機に用いられるダイスは、鉄系若しくは、ダ
イス鋼、クロム鋼等の特殊鋼で成形した後、熱処理を施
して構成されていた。[Prior Art] Conventionally, dies used in granulators have been formed by forming iron-based steel or special steel such as die steel or chrome steel, and then subjecting the die to heat treatment.
［発明が解決しようとする課題］
しかしながら、従来のダイスで、高硬度の金属粉若しく
は、金属炭化物粉を低水分で造粒する。[Problems to be Solved by the Invention] However, high hardness metal powder or metal carbide powder is granulated with a low moisture content using a conventional die.
いわゆる湿式押し出し造粒機に用いた場合、ダイスに加
えるロータの加圧力が非常に高いため、ダイスの摩耗が
激しく１時間の経過に伴って、ロータとダイスの間に隙
間が生じ、造粒が困難となるという問題点があった。When used in a so-called wet extrusion granulator, the pressurizing force applied by the rotor to the die is extremely high, so the die wears out rapidly and a gap forms between the rotor and the die over the course of an hour, causing granulation to deteriorate. The problem was that it was difficult.
そこで、本発明の技術的課題は、上記欠点に鑑み、高硬
度の金属粉、金属炭化物を低水分で造粒を可能とした超
硬合金ダイスを提供することである。SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, a technical object of the present invention is to provide a cemented carbide die that enables granulation of highly hard metal powder and metal carbide with low moisture content.
［課題を解決するための手段］
本発明によれば、造粒室の内底部に配置された多数の少
孔を有するダイスに材料を投入し、該材料上にロータを
転動させることによって、前記少孔から粒体を成型する
造粒機に用いられるダイスであって、前記ダイスの少な
くとも造粒部を超耐摩耗性の超硬合金で形成したことを
特徴とする。[Means for Solving the Problems] According to the present invention, a material is introduced into a die having a large number of small holes arranged at the inner bottom of a granulation chamber, and a rotor is rolled over the material. The die is used in a granulator that molds granules from the small holes, and is characterized in that at least the granulation part of the die is made of a super-wear-resistant cemented carbide.
超硬合金ダイスが得られる。A cemented carbide die is obtained.
［作用コ
ダイスの少なくとも造粒部を超耐摩耗性の超硬合金で形
成することによって、高硬度の金属粉。[High hardness metal powder is produced by forming at least the granulation part of the working co-dice with ultra-wear-resistant cemented carbide.
金属炭化物を低水分で造粒を可能となる。It is possible to granulate metal carbide with low moisture content.
［実施例］ 以下１本発明の実施例を図面を参照して説明する。[Example] An embodiment of the present invention will be described below with reference to the drawings.
一第１実施例−
第１図、第２図は１本発明の第１実施例を示したもので
、第１図は、斜視図、第２図は、要部拡大断面図である
。1. First Embodiment - FIGS. 1 and 2 show a first embodiment of the present invention, in which FIG. 1 is a perspective view and FIG. 2 is an enlarged sectional view of a main part.
図示のように、ダイス１０は１円盤状を成し。As shown in the figure, the die 10 has a disk shape.
中心に穴１１を形成するとともに、その穴１１を中心と
して、外周１２方向に放射状に配列された中孔２１を有
する造粒部２０が設けられている。A granulation part 20 is provided which has a hole 11 formed in the center and has medium holes 21 arranged radially in the direction of the outer periphery 12 around the hole 11 .
この造粒部２０は、ダイス１０の裏面１３に連通する中
孔２１と該中孔２１のダイス１０の表面に形成された凹
部２２と裏面１３側に形成された凹部２３とを備えてい
る。The granulation unit 20 includes a hollow 21 communicating with the back surface 13 of the die 10, a recess 22 formed in the surface of the die 10 in the hollow 21, and a recess 23 formed on the back surface 13 side.
このダイス１０は、超耐摩耗性の超硬合金２例えば、Ｗ
（タングステン）合金で形成されている。This die 10 is made of a super wear-resistant cemented carbide 2 such as W.
(tungsten) alloy.
−第２実施同− 第３図、第４図は、第二実施例を示したもので。-Second implementation same- Figures 3 and 4 show the second embodiment.
この実施例では、ダイス１０の本体１５をダイス鋼等の
特殊鋼で形成し、上面に超耐摩耗性の超硬合金１例えば
、Ｗ（タングステン）合金で形成された造粒部２０を張
り合わせる。これにより、ロータの加圧力が加わり、造
粒時に摩耗する部分には、超耐摩耗性の超硬合金が用い
られることになる。尚１図中、第１実施例と同構成には
、同一符号を用いた。In this embodiment, the main body 15 of the die 10 is made of special steel such as die steel, and a granulated part 20 made of a super wear-resistant cemented carbide 1, for example, a W (tungsten) alloy is attached to the upper surface. . As a result, super wear-resistant cemented carbide is used in the parts that are subject to the pressure of the rotor and are worn during granulation. In FIG. 1, the same reference numerals are used for the same components as in the first embodiment.
上記した超耐摩耗性の超硬合金製のダイス１０でＴｉｃ
（炭化チタン）粉［ＶＨＮ、３２００］ＴｉＮ （窒化
チタン）粉［ＶＨＮ、２４００コの混合粉を７％の水分
で造粒した場合のダイスの摩耗状態を従来のダイスを用
いた場合と比較すると表−１のような結果が得られた。Tic with the super wear-resistant cemented carbide die 10 mentioned above.
(Titanium carbide) powder [VHN, 3200] TiN (Titanium nitride) powder [VHN, 2400 mixed powder is granulated with 7% moisture and the wear condition of the die is compared with that when a conventional die is used. The results shown in Table 1 were obtained.
表−１
に超耐摩耗性の超硬合金の材料を用いることによって、
造粒の際のダイスの摩耗が減少し、大量に連続的に造粒
することが可能となり、コストメリットが大きい。Table 1 shows that by using ultra-wear-resistant cemented carbide materials,
Abrasion of the die during granulation is reduced, making it possible to continuously granulate a large amount of granules, which has great cost benefits.
第５図と第６図は、上記の表の１０００ ｋｇ造粒した
ときのダイスの断面を拡大し示したもので。Figures 5 and 6 are enlarged cross-sections of the die when granulating 1000 kg of the table above.
この図で明らかなように１本発明の超硬合金のダイス１
０では、従来のダイス１００の表面と比較して表面の摩
耗は、非常に少ない。As is clear from this figure, the cemented carbide die of the present invention 1
0, the surface wear is very low compared to the surface of the conventional die 100.
［発明の効果］
上記したように１本発明は、高硬度の金属粉若しくは、
金属炭化物粉を低水分で造粒するための造粒機にもちい
られるダイスの少なくとも造粒部[Effects of the Invention] As described above, the present invention provides high hardness metal powder or
At least the granulation part of a die used in a granulator for granulating metal carbide powder with low moisture content
第１図、第２図は１本発明の第１実施例を示したもので
、第１図は、斜視図、第２図は、要部拡大断面図、第３
図、第４図は５第二実施例を示したもので、第３図は、
斜視図、第４図は、要部拡大図、第５図、第６図は１本
発明と従来のダイスの摩耗性を示した説明図で、第５図
は、従来例を示した断面図、第６図は、第１実施例にお
けるダイスの状態を示した断面図である。
１０・・・超硬合金ダイス、１１・・・穴、２０・・・
造粒部、２１・・・中孔、２２．２３・・・四部。
第５図
第６図
（炎米品で１α刀に９ｆ目＋１）
１ωづｌ…ｌ弛ヱ
（超硬合金製ｐスで１（８）勺危粒ノ
１０イ理四Ｕ部μ1 and 2 show a first embodiment of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is an enlarged sectional view of main parts, and FIG.
Figures 4 and 4 show the 5 second embodiment, and Figure 3 shows the following:
A perspective view, FIG. 4 is an enlarged view of the main part, FIGS. 5 and 6 are explanatory diagrams showing the abrasion properties of the present invention and the conventional die, and FIG. 5 is a sectional view showing the conventional example. , FIG. 6 is a sectional view showing the state of the dice in the first embodiment. 10... Cemented carbide die, 11... Hole, 20...
Granulation part, 21...Medium hole, 22.23...Four parts. Fig. 5 Fig. 6 (9f + 1 for 1α sword with flame rice product) 1 ω zu l...l slack (1 (8) 1 (8) x 10 ri 4 U part μ for cemented carbide PS)
Claims (1)
イスに材料を投入し、該材料上にロータを転動させるこ
とによって、前記少孔から粒体を成型する造粒機に用い
られるダイスであって、前記ダイスの少なくとも造粒部
を超耐摩耗性の超硬合金で形成したことを特徴とする超
硬合金ダイス。1. A granulator that molds granules from the small holes by introducing the material into a die having a large number of small holes arranged at the inner bottom of the granulation chamber and rolling a rotor over the material. 1. A cemented carbide die for use in which at least a granulation portion of the die is made of a super-wear-resistant cemented carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20795789A JPH0371996A (en) | 1989-08-14 | 1989-08-14 | Cemented carbide die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20795789A JPH0371996A (en) | 1989-08-14 | 1989-08-14 | Cemented carbide die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0371996A true JPH0371996A (en) | 1991-03-27 |
Family
ID=16548336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20795789A Pending JPH0371996A (en) | 1989-08-14 | 1989-08-14 | Cemented carbide die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0371996A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0366682A (en) * | 1989-08-04 | 1991-03-22 | Tsumura & Co | New ylidoid derivative |
| US6053722A (en) * | 1998-07-28 | 2000-04-25 | Consolidated Process Machinery, Inc. | Nitrided H13-alloy cylindrical pelleting dies |
| CN101837649A (en) * | 2010-04-19 | 2010-09-22 | 广东兆丰能源技术有限公司 | Biomass fuel forming die |
| JP2015047575A (en) * | 2013-09-03 | 2015-03-16 | 新興工機株式会社 | Pelletizer |
-
1989
- 1989-08-14 JP JP20795789A patent/JPH0371996A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0366682A (en) * | 1989-08-04 | 1991-03-22 | Tsumura & Co | New ylidoid derivative |
| US6053722A (en) * | 1998-07-28 | 2000-04-25 | Consolidated Process Machinery, Inc. | Nitrided H13-alloy cylindrical pelleting dies |
| CN101837649A (en) * | 2010-04-19 | 2010-09-22 | 广东兆丰能源技术有限公司 | Biomass fuel forming die |
| JP2015047575A (en) * | 2013-09-03 | 2015-03-16 | 新興工機株式会社 | Pelletizer |
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