JPH0273901A - Method for preventing wear of metal mold for compacting - Google Patents
Method for preventing wear of metal mold for compactingInfo
- Publication number
- JPH0273901A JPH0273901A JP22714688A JP22714688A JPH0273901A JP H0273901 A JPH0273901 A JP H0273901A JP 22714688 A JP22714688 A JP 22714688A JP 22714688 A JP22714688 A JP 22714688A JP H0273901 A JPH0273901 A JP H0273901A
- Authority
- JP
- Japan
- Prior art keywords
- wax
- iron powder
- powder
- mold
- butyl stearate
- 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
- 238000000034 method Methods 0.000 title claims description 9
- 229910052751 metal Inorganic materials 0.000 title abstract 3
- 239000002184 metal Substances 0.000 title abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 10
- CADICXFYUNYKGD-UHFFFAOYSA-N sulfanylidenemanganese Chemical compound [Mn]=S CADICXFYUNYKGD-UHFFFAOYSA-N 0.000 claims abstract description 8
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 4
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000008117 stearic acid Substances 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野：
本発明は粉末成形用金型の摩耗を防止する方法に関する
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to a method for preventing wear in powder molding molds.
従来の技術：
粉末冶金製品は、金型内で粉末や粉末成形体を圧縮成形
加工・焼成することにより、切削・研削などの機械加工
を要しないで、最終製品が得られることを特徴としてお
り、本質的に、金型の寸法精度により製品の寸法精度が
左右される。Conventional technology: Powder metallurgy products are characterized by the fact that the final product can be obtained by compression molding and firing powder or powder compacts in a mold, without requiring machining such as cutting or grinding. In essence, the dimensional accuracy of the product depends on the dimensional accuracy of the mold.
ところが、金型は、使用により摩耗を発生し、例えば、
ダイスについていえば、内径寸法（製品の外径寸法）は
除徐に大きくなる。そして、製品の許容寸法公差を越し
てしまうと、金型の寿命が尽きる。However, the molds suffer from wear due to use, for example,
As for dies, the inner diameter (the outer diameter of the product) gradually increases. If the allowable dimensional tolerance of the product is exceeded, the life of the mold will end.
金型は高価であるから、その寿命を延長させるために、
従来、金型材料を改良する方法や金型の表面処理を施す
方法などが提案されている。しかし、これらの方法は特
殊な材料、特殊な熱処理、特殊な加工を必要とし、経済
性に欠けるところがあった。Molds are expensive, so in order to extend their lifespan,
Conventionally, methods for improving mold materials, methods for surface treatment of molds, etc. have been proposed. However, these methods require special materials, special heat treatment, and special processing, and are therefore uneconomical.
金型の改良以外の対策としては、鉄分の潤滑特性を向上
させる方法が行われている。通常はステアリン酸亜鉛な
どを鉄分に混合するが、炉を汚ずなどの悪影響かある。Measures other than improving molds include improving the lubricating properties of iron. Usually zinc stearate is mixed with the iron, but this can have negative effects such as polluting the furnace.
一方、金属材料を含ｆ１Ｌないワックス系の材料を使用
すると、充分な潤滑効果が得られない。On the other hand, if a wax-based material containing no metal material is used, a sufficient lubricating effect cannot be obtained.
解決しようとする課題］
本発明は、金型により成形される粉末成形品の製造にお
いて、粉体成分系に潤滑材を複合して添加することによ
り、金型の寿命を延長しようとする。Problems to be Solved] The present invention attempts to extend the life of the mold by adding a lubricant in combination to the powder component system in the production of a powder molded product molded by a mold.
課題を解決するための手段：
上記課題を解決するため、本発明では、原料鉄粉に、ス
テアリン酸ブチルとワックスと硫化マンガンとを混合し
て成形する。Means for Solving the Problems: In order to solve the above problems, in the present invention, raw iron powder is mixed with butyl stearate, wax, and manganese sulfide, and then molded.
ワックスとしては、＃通、マーケットで入手し得るもの
で差支えない。しかしながら、例えば、エチレンジアミ
ンとステアリン酸との反応物である化学組成
Ｈ３５Ｃ１７ＣＯＨＮＣ２Ｈ４ＮＨＣＯＣ１７Ｈ３ｓな
どが優れている。As the wax, any wax available on the market may be used. However, for example, chemical composition H35C17COHNC2H4NHOC17H3s, which is a reaction product of ethylenediamine and stearic acid, is superior.
ステアリン酸ブチルの添加用は、鉄粉に対し、０．５〜
１．０重１１％か′マノましく、０．５重量％未満ては
、は吉んと効果が認められず、１．０重量％を超して使
用しても効果は変らない。For adding butyl stearate, add 0.5 to 0.5 to iron powder.
If it is less than 1.0% by weight or 11% by weight, but less than 0.5% by weight, no significant effect will be observed, and if it is used in excess of 1.0% by weight, the effect will not change.
ワックスの添加Ｍ、は、鉄粉に対し０．５〜１．０重量
％が望ましく、０．５車計％以下ては、効果が少なく、
１．０重量％を超えると、摩擦力低−トの効果が少なく
なる。The addition of wax M is preferably 0.5 to 1.0% by weight based on the iron powder, and if it is less than 0.5% by weight, the effect will be small.
If it exceeds 1.0% by weight, the effect of reducing frictional force will be reduced.
また、硫化マンガンの添加ｉｄは、鉄粉に対し、２．０
〜４．０重量％が望ましく、特に３車１ｉ（％が望まし
い。In addition, the addition ID of manganese sulfide is 2.0 with respect to iron powder.
~4.0% by weight is desirable, particularly 3 cars 1i (%).
作 用 ：
粉末冶金原料鉄粉に潤滑効果を与えるために、従来用い
られたステアリン酸亜鉛に代えて、ステアリン酸ブチル
を用いることにより潤滑効果に影響を与えることなく、
焼結後に残存する亜鉛の悪効果を防止できる。Effect: In order to provide a lubricating effect to the raw material iron powder for powder metallurgy, butyl stearate is used in place of the conventionally used zinc stearate, without affecting the lubricating effect.
The negative effects of zinc remaining after sintering can be prevented.
また、硫化マンガンは、それ自体側２件効果があるが、
ワックス、ステアリン酸ブチルと組合わせることにより
、相乗効果を生じる。In addition, manganese sulfide itself has two effects,
Combining with wax, butyl stearate produces a synergistic effect.
実施例：
直径３０厘の円筒形圧粉成形型において、合金鉄粉（Ｆ
ｅ−２Ｎｉ −０，５Ｍｏ）に、ワックス（エチレンジ
アミンとステアリン酸との反応物、ステアリン酸ブチル
、及び硫化マンガンの第１表に示す量（重量基準）を加
え、成形圧を、３ｔ／ｃ−ｊ、４【／ｄ、５ｔ／Ｃ１１
に変えて、それぞれの場合の引抜き力（【）を調べた（
型潤滑は行っていない）。Example: In a cylindrical compaction mold with a diameter of 30 mm, alloyed iron powder (F
The amounts shown in Table 1 (weight basis) of wax (a reaction product of ethylenediamine and stearic acid, butyl stearate, and manganese sulfide) were added to the e-2Ni-0,5Mo), and the molding pressure was set to 3t/c- j, 4[/d, 5t/C11
We investigated the pull-out force ([) in each case by changing the
(No mold lubrication).
第１表 材料組成と引抜き力との関係
第１表から、各材料の潤滑材として知られているワック
スまたはステアリン酸ブチル単独で添加した場合には、
例えば成形圧力５（／ｄで成形した圧粉成形体の金型か
らの引抜き力は１重量％添加した場合でも、７〜８ｔの
力が必要であるのに対し、ワックスとステアリン酸ブチ
ルとをそれぞれ１％づつ加えることにより引抜き力が５
．４５ｔに低下し、さらにこれに３重量％のＭｎＳを加
えることにより、２．６【に低下する。Table 1 Relationship between material composition and pulling force From Table 1, when wax or butyl stearate, which is known as a lubricant for each material, is added alone,
For example, the force required to pull out a powder compact molded at a molding pressure of 5 (/d) from the mold is 7 to 8 tons even when 1% by weight is added, whereas wax and butyl stearate are By adding 1% each, the pull-out force is 5
．． By adding 3% by weight of MnS to this, it further decreases to 2.6[t].
発明の効果二
成上のように、圧粉成形体を製作するに際し、鉄粉に、
ワックス、ステアリン酸ブチル、ＭｎＳを混合すること
により、圧粉成形体と鉄量の潤滑性を向」ニさせること
ができる。Effects of the invention 2.As mentioned above, when producing a powder compact, iron powder is
By mixing wax, butyl stearate, and MnS, it is possible to improve the lubricity of the powder compact and the amount of iron.
その結果、型の寿命が約５倍伸びた。As a result, the lifespan of the mold was increased by about five times.
Claims (1)
くとも１と、硫化マンガンと混合したものを、金型で圧
縮成形加工する粉末成形用金型の摩耗防止法。 ２ ステアリン酸ブチルの含有量が鉄粉に対し、０．５
〜１．０重量％である請求項１に記載の方法。 ３ ワックスが、エチレンジアミンとステアリン酸との
反応生成物で、鉄粉に対し、０．５〜１．０重量％であ
る請求項１に記載の方法。 ４ 硫化マンガンが、鉄粉に対し、２〜４重量％である
請求項１に記載の方法。[Claims] 1. A method for preventing wear of a powder molding die, in which a mixture of iron powder, at least one of butyl stearate and wax, and manganese sulfide is compression-molded in a die. 2 The content of butyl stearate is 0.5 compared to iron powder.
2. The method of claim 1, wherein the amount is 1.0% by weight. 3. The method according to claim 1, wherein the wax is a reaction product of ethylenediamine and stearic acid and is 0.5 to 1.0% by weight based on the iron powder. 4. The method according to claim 1, wherein the amount of manganese sulfide is 2 to 4% by weight based on the iron powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22714688A JPH0273901A (en) | 1988-09-09 | 1988-09-09 | Method for preventing wear of metal mold for compacting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22714688A JPH0273901A (en) | 1988-09-09 | 1988-09-09 | Method for preventing wear of metal mold for compacting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0273901A true JPH0273901A (en) | 1990-03-13 |
Family
ID=16856211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22714688A Pending JPH0273901A (en) | 1988-09-09 | 1988-09-09 | Method for preventing wear of metal mold for compacting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0273901A (en) |
-
1988
- 1988-09-09 JP JP22714688A patent/JPH0273901A/en active Pending
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