JPS60262939A - Wear resistant cast alloy - Google Patents
Wear resistant cast alloyInfo
- Publication number
- JPS60262939A JPS60262939A JP11943884A JP11943884A JPS60262939A JP S60262939 A JPS60262939 A JP S60262939A JP 11943884 A JP11943884 A JP 11943884A JP 11943884 A JP11943884 A JP 11943884A JP S60262939 A JPS60262939 A JP S60262939A
- Authority
- JP
- Japan
- Prior art keywords
- wear
- casting
- cast alloy
- resistant cast
- content
- 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
Landscapes
- Hydraulic Turbines (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野１
本発明は耐摩耗性鋳造合金に関し、さらに詳しくは、遠
心加圧鋳造法（立型遠心鋳造法）により不規則形状の鋳
物の多数を同時に鋳造するのに適した耐摩耗性鋳造合金
に関する。[Detailed Description of the Invention] [Industrial Application Field 1] The present invention relates to a wear-resistant casting alloy, and more specifically, the present invention relates to a wear-resistant casting alloy, and more specifically, to the production of a large number of irregularly shaped castings at the same time by centrifugal pressure casting (vertical centrifugal casting). Relating to wear-resistant casting alloys suitable for casting.
［従来技術１
一般に、採鉱機械や耕作機等の爪または歯等の耐摩耗部
品には、従来から耐摩耗性および生産性の面よりハトフ
ィールドマンガン鋼およびシリフンマンガン鋼等が使用
されてきたが、これらの鋼は強度上からの問題は殆んど
ないけれども、耐摩耗性に問題があり、長期間の使用に
は耐えられなかった。結局、使用の期間が短かく生産性
が悪いという欠点がある。[Prior art 1] In general, Hatfield manganese steel and Silifane manganese steel have been used for wear-resistant parts such as claws or teeth of mining machines and cultivation machines from the viewpoint of wear resistance and productivity. However, although these steels have almost no problems in terms of strength, they have problems in wear resistance and cannot withstand long-term use. After all, it has the drawback of short usage period and poor productivity.
また、一般に使用されている耐摩耗性憫鉄では生産性が
悪い。In addition, the generally used wear-resistant steel has poor productivity.
また、上記したような機械の爪や歯等は、所謂、遠心加
圧鋳造により、複雑形状の鋳物の多数個を同時に鋳造す
ることにより製作されるので、鋳造時の湯流れが良好な
ものが望まれている。In addition, the claws and teeth of the machines mentioned above are manufactured by simultaneously casting a large number of complex-shaped castings using so-called centrifugal pressure casting. desired.
］発明が解決しようとする問題ｉ、１
本発明は上記に説明した従来から使用されてきているハ
トフィールドマンガン鋼、シリコンマンガン鋼および一
般耐摩耗鋳鉄等の種々の問題点を解決し、耐摩耗性に優
れ、強度にも優れ、さらに、遠心加圧鋳造に適した耐摩
耗性鋳造合金を提供するものである。] Problems to be Solved by the Invention (i) 1 The present invention solves the various problems of pigeonfield manganese steel, silicon manganese steel, general wear-resistant cast iron, etc. that have been conventionally used as described above, and improves wear-resistant cast iron. The present invention provides a wear-resistant casting alloy that has excellent properties and strength, and is suitable for centrifugal pressure casting.
［問題点を解決するための手段１
本発明に係る耐摩耗性鋳造合金の特徴とするところは、
Ｃ１，５−３，５ｗｔ％、Ｓｉ Ｏ，２−２，ＯｗＬ％
、Ｍｎ ＜ １，５ｗｔ％、Ｐ ＜ ０，１ｗｔ％、Ｓ
＜ ０，１ｗＬ％、Ｎｉ ＜ ３．Ｏａｔ％、Ｃｒ
１．（ｈａ、Ｏａｔ％、Ｖ ３．０−９，０ｗｔ％を含
有し、残ｉ１’ｊＦｅからなるものである。[Means for Solving the Problems 1 The features of the wear-resistant cast alloy according to the present invention are as follows: C1,5-3,5wt%, SiO,2-2,OwL%
, Mn < 1,5wt%, P < 0,1wt%, S
<0.1 wL%, Ni <3. Oat%, Cr
1. (Ha, Oat%, V 3.0-9.0wt%, and the remainder is i1'jFe.
本発明に係る耐摩耗性鋳造合金について以下詳細に説明
する。The wear-resistant cast alloy according to the present invention will be explained in detail below.
先ず、本発明に係る耐摩耗性鋳造合金の含有成分および
成分割合について説明する。First, the components and component ratios of the wear-resistant cast alloy according to the present invention will be explained.
Ｃは炭化物を形成し、硬度および耐摩耗性を向上させる
元素であり、含有量は少なくともセメンタイトの晶出す
る１、５ｗｔ％は必要であり、また、３．５ｗｔ％を越
えて含有されると炭化物が過多となり脆弱化が起り、使
用上問題がある。よって、Ｃ含有量は１．５〜３，５ｗ
ｔ％とする。C is an element that forms carbides and improves hardness and wear resistance, and the content must be at least 1.5 wt% for cementite to crystallize, and if it is contained in excess of 3.5 wt%. Excessive amount of carbide causes brittleness, which poses a problem in use. Therefore, the C content is 1.5-3.5w
It is assumed to be t%.
Ｓｉは鋳造時の湯流れ性を確保するために必要な元素で
あり、含有量が０．２ｗｔ％未満ではこの効果は少なく
、また、黒鉛化の点から２，０ｗｔ％を越えて含有させ
る必要はない。よって、Ｓｉ含有量は０．２〜２，０曽
ｔ％とする。Si is an element necessary to ensure flowability during casting, and if the content is less than 0.2 wt%, this effect will be small, and from the viewpoint of graphitization, it is necessary to contain more than 2.0 wt%. There isn't. Therefore, the Si content is set to 0.2 to 2.0 t%.
Ｍｎは含有量が１，５ｗｔ％を越えると靭性の低下を招
来する。よって、Ｍｎ含有量は１，５ｗｔ％以下とする
。When the Mn content exceeds 1.5 wt%, toughness decreases. Therefore, the Mn content is set to 1.5 wt% or less.
Ｐ、Ｓは靭性を劣化させるので、これらの含有量はＯ，
１ｗｔ％以下とする。Since P and S deteriorate toughness, the content of these is O,
The content shall be 1 wt% or less.
Ｎｉはマトリックス硬度を高める元素であるが、本発明
に係る耐摩耗性鋳造合金においては主として炭化物によ
り高硬度化を図っているので、含有量は最高３，０ｗｔ
％とする。よって、Ｎｉ含有量は３．０ｗｔ％以下とす
る。Ni is an element that increases matrix hardness, and in the wear-resistant cast alloy according to the present invention, the hardness is mainly achieved by carbides, so the content is at most 3.0wt.
%. Therefore, the Ni content is set to 3.0 wt% or less.
Ｃｒは耐摩耗性を付与する元素であり、含有量が１，０
ｗｔ％未満ではこの効果は少なく、また、炭化物の形状
面から６，０ｗｔ％を越えて含有させる必要はない。よ
って、Ｃｒ含有量は１．０〜６，０ｗｔ％とする。Cr is an element that provides wear resistance, and the content is 1.0
If the content is less than 6.0 wt%, this effect will be small, and in view of the shape of the carbide, it is not necessary to contain more than 6.0 wt%. Therefore, the Cr content is set to 1.0 to 6.0 wt%.
■は硬い炭化物を形成し、耐摩耗性を向上し、また、共
晶炭化物のネット状組織の生成を阻止し、耐クラツク性
の向上に寄与する元素であり、含有１が３．０ｍ１％未
満ではこのような効果は少なく、また、９．０ｗｔ％を
越えて含有させてもそれ以上の効果の向上は期待できな
い。よって、■含有量は３．０〜９，０ｗｔ％とする。■ is an element that forms hard carbides, improves wear resistance, prevents the formation of a net-like structure of eutectic carbides, and contributes to improved crack resistance, and the content of 1 is less than 3.0 m1% However, such an effect is small, and even if the content exceeds 9.0 wt%, no further improvement in the effect can be expected. Therefore, (1) content is set to 3.0 to 9.0 wt%.
なお、本発明に係る耐摩耗性鋳造合金は、例えば、採鉱
機械や薪作機の爪や歯を製造する際に、遠心加圧債造（
所謂、立型遠心鋳造）により製作するのであるが、ＧＮ
ｏは２０〜７０とするのがよく、そして、２０未満では
複雑な形状の鋳物では健全性が低下し、また、７０を越
えると経済性が悪くなる。The wear-resistant cast alloy according to the present invention can be used, for example, in centrifugal pressurized bonding (
It is manufactured by so-called vertical centrifugal casting), but GN
o is preferably between 20 and 70; if it is less than 20, the soundness of castings with complex shapes will deteriorate, and if it exceeds 70, it will be uneconomical.
因に、立型遠心鋳造を行なう装置としては添付図面に示
すものがあり、即ち、回転テーブル８上に、下蓋７と上
蓋２との間に外筒３がボルトナツトにより固定されてお
り、外筒の内側に金型４が設けられ、その金型４内に砂
型５を設置し、掛堰１より溶湯を注入し、回転テーブル
８を回転させながら鋳造を行なうことにより、多数個の
耐摩耗性鋳造合金鋳物６が同時に得られる。冷却後装置
を解体して鋳物６を取出すのである。Incidentally, there is an apparatus for performing vertical centrifugal casting as shown in the attached drawing, in which an outer cylinder 3 is fixed with bolts and nuts on a rotary table 8 between a lower cover 7 and an upper cover 2. A mold 4 is provided inside the cylinder, a sand mold 5 is placed inside the mold 4, molten metal is injected from the weir 1, and casting is performed while rotating the rotary table 8, thereby forming a large number of wear-resistant molds. A cast alloy casting 6 is obtained at the same time. After cooling, the apparatus is dismantled and the casting 6 is taken out.
［実施例１
次に、本発明に係る耐摩耗性鋳造合金の実施例を説明す
る。[Example 1] Next, an example of a wear-resistant cast alloy according to the present invention will be described.
実施例
Ｃ２，８６ｗｔ％、 Ｓｉ Ｏ，７８ｗＬ％、 Ｍｎ
０．６５ｗｔ％、Ｐ Ｏ，０３０ｗｔ％、Ｓ Ｏ，０２
１ｗｔ％、Ｎｉ １．２５ｗｔ％、Ｃｒ ４．２５ｗｔ
％、Ｖ ５，６３ｗｔ％、残部Ｆｅの鋳造合金を常法に
よって溶解し、添付図面に示した装置により、トラクタ
ーの爪を一度に１６個鋳造した。Example C2, 86wt%, SiO, 78wL%, Mn
0.65wt%, PO,030wt%, SO,02
1wt%, Ni 1.25wt%, Cr 4.25wt
%, V 5.63 wt %, balance Fe was melted by a conventional method, and 16 tractor pawls were cast at a time using the apparatus shown in the attached drawings.
この場合、ＧＮｏ＝５５であった。In this case, GNo=55.
なお、比較例として市販のシリコンマンガン鋼を使用し
た。Note that a commercially available silicon manganese steel was used as a comparative example.
この両者について、引張強さ、硬度および摩耗試験の調
査結果を第１表に示す。Table 1 shows the results of tensile strength, hardness and abrasion tests for both.
摩耗試験は、砂摩耗試験であり、４号硅砂に硅砂の空隙
を満たすに足る水量の水を加え、試験片を回転させた。The abrasion test was a sand abrasion test, in which water was added to No. 4 silica sand in an amount sufficient to fill the voids in the silica sand, and the test piece was rotated.
試験片サイズ（硅砂中） １０φＸ５５Ｌ試験片回転数
８６０ ｒｐｍ
試験時闇（１回当り） ２Ｈｒ
摩耗重ｉ（％）
＝１摩耗量（ｇ）７元の試験片重量（ｇ月ＸＩ ００第
１表
この第２表からもわかるように、本発明に係る耐摩耗性
鋳造合金は、引張強さは比較例のシリコンマンガン鋼よ
りやや劣るが、硬度は比較例より優れ、特に、耐摩耗性
を示す摩耗重量は比較例の約１／２であって極めて優れ
た耐摩耗性を有することがわかる。Test piece size (in silica sand) 10φX55L Test piece rotation speed 860 rpm Test darkness (per time) 2 hours Wear weight i (%) = 1 wear amount (g) 7 Original test piece weight (g Month XI 00 Table 1 As can be seen from Table 2, the wear-resistant cast alloy according to the present invention has slightly lower tensile strength than the silicon manganese steel of the comparative example, but is superior to the comparative example in hardness, and exhibits especially wear resistance. It can be seen that the abrasion weight is about 1/2 that of the comparative example, and that the sample has extremely excellent abrasion resistance.
［発明の効果１
以上説明したように、本発明に係る耐摩耗性鋳造合金は
上記の構成を有しているものであるから、採鉱機械の爪
、クラッシャ一部品、トラクター、耕運機用爪（歯）用
の材料として、優れた耐摩耗性を有し、かつ、硬度も高
く、長期の使用に耐え、さらに、立型鋳造にも好適なも
のであるという優れた効果を有するものである。[Effects of the Invention 1] As explained above, the wear-resistant cast alloy according to the present invention has the above-mentioned structure, so it can be used for mining machine claws, crusher parts, tractors, cultivator claws (teeth), etc. ), it has excellent abrasion resistance, high hardness, can withstand long-term use, and is also suitable for vertical casting.
添付図面は立型鋳造装置の概略断面図である。
１・・掛堰、２・・上蓋、３・・外筒、４・・金型、５
・・砂型、６・・耐摩耗性漬物、７・・下蓋。
８・・回転テーブル。The accompanying drawing is a schematic cross-sectional view of the vertical casting apparatus. 1. Hanging weir, 2. Upper lid, 3. Outer cylinder, 4. Mold, 5
... Sand mold, 6. Wear-resistant pickles, 7. Lower lid. 8. Rotating table.
Claims (1)
、Ｍｎ ＜ ］、５Ｉ＃ｔ％、Ｐ ＜ ０．１ｗｔ％、
Ｓ ＜ ０，１ｗｔ％、Ｎｉ ＜ ３．０ｗｔ％、Ｃｒ
１．ＯＪ、０ｗｔ％、Ｖ ３．０〜９，０ｗｔ％を含
有し、残部Ｆｅからなることを特徴とする耐摩耗性鋳造
合金。C1.5~3.5u+t%, Si0.2~2.0wt%
, Mn < ], 5I#t%, P < 0.1wt%,
S < 0.1wt%, Ni < 3.0wt%, Cr
1. A wear-resistant cast alloy containing 0 wt% OJ, 3.0 to 9.0 wt% V, and the balance being Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11943884A JPS60262939A (en) | 1984-06-11 | 1984-06-11 | Wear resistant cast alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11943884A JPS60262939A (en) | 1984-06-11 | 1984-06-11 | Wear resistant cast alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60262939A true JPS60262939A (en) | 1985-12-26 |
| JPH0472902B2 JPH0472902B2 (en) | 1992-11-19 |
Family
ID=14761417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11943884A Granted JPS60262939A (en) | 1984-06-11 | 1984-06-11 | Wear resistant cast alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60262939A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63183150A (en) * | 1987-01-22 | 1988-07-28 | Railway Technical Res Inst | Special cast iron for brake block by uses |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5014214A (en) * | 1973-06-06 | 1975-02-14 |
-
1984
- 1984-06-11 JP JP11943884A patent/JPS60262939A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5014214A (en) * | 1973-06-06 | 1975-02-14 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63183150A (en) * | 1987-01-22 | 1988-07-28 | Railway Technical Res Inst | Special cast iron for brake block by uses |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0472902B2 (en) | 1992-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2485760A (en) | Cast ferrous alloy | |
| US3970445A (en) | Wear-resistant alloy, and method of making same | |
| US3941589A (en) | Abrasion-resistant refrigeration-hardenable white cast iron | |
| US2485761A (en) | Gray cast iron having improved properties | |
| CN110273447A (en) | Excavator bucket teeth and its manufacturing method | |
| CN111041339B (en) | High-silicon ferrite nodular cast iron material with high fatigue performance and preparation method thereof | |
| CN106868395A (en) | A kind of production method of mixed matrix tissue cast condition ductile iron | |
| TW390910B (en) | High strength spheroidal graphite cast iron | |
| US2516524A (en) | White cast iron | |
| ITMI930305A1 (en) | NODULAR CAST IRON AND PROCEDURE FOR OBTAINING NODULAR CAST IRON | |
| JPWO2002077309A1 (en) | Cast steel and casting mold | |
| JPS60262939A (en) | Wear resistant cast alloy | |
| US2973564A (en) | Method of graphitizing cast iron | |
| CN104878281A (en) | Spheroidal graphite cast iron material for hydraulic spanner piston and preparation method of spheroidal graphite cast iron material | |
| US3871868A (en) | Method of preparing a corrosion-resistant and ductile iron alloy with a high aluminum content | |
| US3811872A (en) | Corrosion resistant high strength alloy | |
| AU603496B2 (en) | Corrosion and abrasion resistant alloy | |
| JPH0121862B2 (en) | ||
| US2038639A (en) | Method of producing castings | |
| JP4494616B2 (en) | Cast iron having high vibration damping ability and method for producing the same | |
| RU2109837C1 (en) | Alloy based on iron-carbon system for casting of wear-resistance articles and method of alloy production | |
| CN104878283A (en) | Wear-resisting nodular cast iron material for hydraulic wrench piston and preparation method of wear-resisting nodular cast iron material | |
| RU2112073C1 (en) | Cast iron | |
| US3920451A (en) | Well workable, abrasion resistant nodular cast iron and a method of its production | |
| JP7300351B2 (en) | Polishing surface plate using spheroidal graphite cast iron |