JPH08209297A - High speed steel - Google Patents
High speed steelInfo
- Publication number
- JPH08209297A JPH08209297A JP1525695A JP1525695A JPH08209297A JP H08209297 A JPH08209297 A JP H08209297A JP 1525695 A JP1525695 A JP 1525695A JP 1525695 A JP1525695 A JP 1525695A JP H08209297 A JPH08209297 A JP H08209297A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- weq
- weight
- carbides
- wear resistance
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ドリル、タップ、カッ
ター等の切削工具や金型等に使用される高速度鋼に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to high speed steel used for cutting tools such as drills, taps and cutters, dies and the like.
【０００２】[0002]
【従来の技術】ドリル、タップ、カッター等の切削工具
や金型等の材料として高速度鋼が多く用いられている。
近来、被加工材の硬度が上昇するのに伴い、これらの加
工に用いる工具の寿命向上の要求が高まっている。工具
の寿命向上の一策として、工具材料の耐摩耗性を向上す
ることが考えられる。2. Description of the Related Art High-speed steel is often used as a material for cutting tools such as drills, taps and cutters, and dies.
Recently, as the hardness of the material to be processed increases, there is an increasing demand for improving the service life of tools used for these processing. As one measure for improving the tool life, it is considered to improve the wear resistance of the tool material.
【０００３】従来、高速度鋼の耐摩耗性の向上の手段と
しては、炭化物形成元素であるＷ、Ｍｏ、Ｖ等の元素の
含有率を増加することによって鋼中の炭化物の量を増加
したり、鋼中の炭化物粒径を調整する等の方法が行われ
ている。高速度鋼の鋳造凝固時に形成される炭化物は、
主にＶ含有率の高いＭＣ炭化物と、Ｗ、Ｍｏ、Ｖ含有率
の高いＭ2 Ｃ炭化物とである。そして、鋼に添加する
Ｗ、Ｍｏ、Ｖの添加量を増加することによって炭化物の
量を増加し、鋼の耐摩耗性を向上する。Conventionally, as means for improving the wear resistance of high-speed steel, the amount of carbides in the steel is increased by increasing the content of elements such as W, Mo, V which are carbide forming elements. Methods such as adjusting the grain size of carbides in steel are performed. Carbides formed during high-speed steel casting and solidification are
They are mainly MC carbides having a high V content and W, Mo, and M 2 C carbides having a high V content. Then, the amount of carbides is increased by increasing the amounts of W, Mo, and V added to the steel, and the wear resistance of the steel is improved.
【０００４】高速度鋼は、鋼塊に鋳造した後、鋼塊中に
多量に含まれる炭化物を破砕して微細均一に分散させる
ために、通常、熱間鍛造等の熱間加工による鍛練を施し
て用いられる。しかし、鋼中の炭化物形成元素含有率の
増加によって、鋼の鋳造凝固時に鋼中に生成する炭化物
の総量が増加すると、鋼の熱間加工性が低下し、鍛練に
よって鋼の鋳造組織を改善することが困難となる。その
ため、鋼の靭性が不足して欠損等の理由によって工具寿
命を損うという結果をもたらす。そのため、鋼中の炭化
物形成元素含有率の増加によって鋼の耐摩耗性をさらに
向上することは困難となっている。High-speed steel is usually cast into a steel ingot and then subjected to forging by hot working such as hot forging in order to crush and finely disperse a large amount of carbide contained in the steel ingot. Used. However, due to the increase in the content of carbide forming elements in the steel, when the total amount of carbides formed in the steel during casting solidification of the steel increases, the hot workability of the steel decreases and the cast structure of the steel is improved by forging. Becomes difficult. As a result, the toughness of the steel is insufficient and the tool life is impaired due to such reasons as chipping. Therefore, it is difficult to further improve the wear resistance of the steel by increasing the content rate of the carbide forming element in the steel.
【０００５】[0005]
【発明が解決しようとする課題】本発明者らは、高速度
鋼の鋳造凝固時に形成される炭化物の安定性および炭化
物量の変化におよぼすＳｉの効果に着目して研究した結
果、鋳造凝固時に形成される炭化物量を増加することな
く、その後の熱間加工時に、鋼の耐摩耗性向上に有効な
炭化物量を増加することができる高速度鋼を見出し、本
発明を完成するに至った。DISCLOSURE OF INVENTION Problems to be Solved by the Invention The inventors of the present invention have conducted a study focusing on the effect of Si on the stability of carbides formed during solidification by casting of high-speed steel and the change in the amount of carbides. The present invention has been completed by finding a high speed steel capable of increasing the amount of carbides effective for improving the wear resistance of steel during the subsequent hot working without increasing the amount of carbides formed.
【０００６】本発明の目的は、鋼の熱間加工性を損うこ
となく、しかも鋼中の炭化物量を増加することによっ
て、耐摩耗性の優れた高速度鋼を提供することにある。An object of the present invention is to provide a high speed steel excellent in wear resistance by not increasing the hot workability of steel and by increasing the amount of carbide in the steel.
【０００７】[0007]
【課題を解決するための手段】本発明の高速度鋼は、 （１）化学組成が重量％で、Ｃ ：０．７〜１．６％、
Ｓｉ：０．５％〜４．０％、Ｍｎ：１．０％以下、Ｃ
ｒ：３．５〜５．５％、Ｍｏ：３．０〜１０．０％、Ｗ
：２．０〜８．０％、Ｖ ：１．０〜３．５％、であ
って残部が実質的にＦｅからなり、かつＷeq＝Ｗ＋２Ｍ
ｏとするときＷeqが重量％で１０〜２２％であることを
特徴とする。 （２）化学組成が重量％で、Ｃ ：０．７〜１．６％、
Ｓｉ：０．５％〜４．０％、Ｍｎ：１．０％以下、Ｃ
ｒ：３．５〜５．５％、Ｍｏ：３．０〜１０．０％、Ｗ
：２．０〜８．０％、Ｖ ：１．０〜３．５％、であ
って残部が実質的にＦｅからなり、かつＷeq＝Ｗ＋２Ｍ
ｏとするときＷeqが重量％で１０〜２２％、および重量
比でＳｉ／Ｗeq≦０．２の関係を満たすことを特徴とす
る。 （３）化学組成が重量％で、Ｃ ：０．７〜１．６％、
Ｓｉ：０．５％〜４．０％、Ｍｎ：１．０％以下、Ｃ
ｒ：３．５〜５．５％、Ｍｏ：３．０〜１０．０％、Ｗ
：２．０〜８．０％、Ｖ ：１．０〜３．５％、Ｃ
ｏ：８％以下、であって残部が実質的にＦｅからなり、
かつＷeq＝Ｗ＋２ＭｏとするときＷeqが重量％で１０〜
２２％、および重量％で Ｃｏ≦１０．０−２．５Ｓｉ
の関係を満たすことを特徴とする。 （４）化学組成が重量％で、Ｃ ：０．７〜１．６％、
Ｓｉ：０．５％〜４．０％、Ｍｎ：１．０％以下、Ｃ
ｒ：３．５〜５．５％、Ｍｏ：３．０〜１０．０％、Ｗ
：２．０〜８．０％、Ｖ ：１．０〜３．５％、Ｃ
ｏ：８％以下、であって残部が実質的にＦｅからなり、
かつＷeq＝Ｗ＋２ＭｏとするときＷeqが重量％で１０〜
２２％、重量比でＳｉ／Ｗeq≦０．２、および重量％で
Ｃｏ≦１０．０−２．５Ｓｉの関係を満たすことを特
徴とする。The high speed steel of the present invention comprises (1) a chemical composition of wt%, C: 0.7 to 1.6%,
Si: 0.5% to 4.0%, Mn: 1.0% or less, C
r: 3.5 to 5.5%, Mo: 3.0 to 10.0%, W
: 2.0 to 8.0%, V: 1.0 to 3.5%, the balance being substantially Fe, and Weq = W + 2M
It is characterized that Weq is 10 to 22% by weight when it is represented by o. (2) The chemical composition is% by weight, C: 0.7 to 1.6%,
Si: 0.5% to 4.0%, Mn: 1.0% or less, C
r: 3.5 to 5.5%, Mo: 3.0 to 10.0%, W
: 2.0 to 8.0%, V: 1.0 to 3.5%, the balance being substantially Fe, and Weq = W + 2M
It is characterized by satisfying the relations of Weq of 10 to 22% in weight% and Si / Weq ≦ 0.2 in weight ratio. (3) Chemical composition is wt%, C: 0.7 to 1.6%,
Si: 0.5% to 4.0%, Mn: 1.0% or less, C
r: 3.5 to 5.5%, Mo: 3.0 to 10.0%, W
: 2.0 to 8.0%, V: 1.0 to 3.5%, C
o: 8% or less, the balance being substantially Fe.
When Weq = W + 2Mo, Weq is 10% by weight.
22%, and wt% Co ≦ 10.0-2.5Si
It is characterized by satisfying the relationship of. (4) Chemical composition is% by weight, C: 0.7 to 1.6%,
Si: 0.5% to 4.0%, Mn: 1.0% or less, C
r: 3.5 to 5.5%, Mo: 3.0 to 10.0%, W
: 2.0 to 8.0%, V: 1.0 to 3.5%, C
o: 8% or less, the balance being substantially Fe.
When Weq = W + 2Mo, Weq is 10% by weight.
22%, Si / Weq ≦ 0.2 in weight ratio, and Co ≦ 10.0-2.5Si in weight%.
【０００８】[0008]
【作用】高速度鋼の鋳造凝固時に形成されるＭ2 Ｃ炭化
物は、熱間鍛造等の熱間加工時に分解してＭ6 Ｃ＋ＭＣ
となる。このとき、マトリックス中のＳｉが前記Ｍ6 Ｃ
中に固溶する一方、前記Ｍ6 Ｃより炭化物形成元素が排
出され、この排出元素によって新たなＭ6 Ｃ炭化物が生
成される。鋳造凝固時には炭化物量が少ないので熱間加
工が容易であり、熱間加工後には新たな炭化物の生成に
よって炭化物含有量が増加し、鋼の耐摩耗性を向上す
る。[Function] M 2 C carbide formed during solidification of high speed steel is decomposed during hot working such as hot forging to M 6 C + MC.
Becomes At this time, the Si in the matrix is M 6 C
While solid solution in the M 6 C than carbide forming elements is discharged, new M 6 C carbides are generated by the discharge element. Since the amount of carbides is small at the time of solidification by casting, hot working is easy, and after hot working, the carbide content is increased by the generation of new carbides, and the wear resistance of steel is improved.
【０００９】本発明は、上記の一連の炭化物反応におけ
るＳｉの役割に関する新しい知見に基づいてなされたも
のである。以下、本発明の高速度鋼を構成する合金成分
の限定理由について説明する。 Ｃ：０．７〜１．６％ Ｃは、鋼を焼入硬化し、また炭化物を形成して、鋼に強
度と耐摩耗性を付与するのに重要な元素であって、その
ために０．７％以上を含有する必要がある。しかし、含
有率が高すぎると一次炭化物の晶出量が多くなり、鋼の
熱間加工性を損うので上限を１．６％とする。The present invention has been made based on the new knowledge of the role of Si in the above-described series of carbide reactions. Hereinafter, the reasons for limiting the alloy components constituting the high speed steel of the present invention will be described. C: 0.7 to 1.6% C is an important element for quench hardening the steel and forming carbides, and imparting strength and wear resistance to the steel, and therefore C. It is necessary to contain 7% or more. However, if the content is too high, the amount of crystallization of primary carbides increases and the hot workability of steel is impaired, so the upper limit is made 1.6%.
【００１０】 Ｓｉ：０．５％〜４．０％、Ｓｉ／Ｗeq≦０．２ Ｓｉは、熱間加工時にＭ2 Ｃの分解によって生じたＭ6
Ｃ中の炭化物形成元素Ｗ、Ｍｏに置換してＭ6 Ｃ中に入
り、Ｓｉに置換された炭化物形成元素Ｗ、Ｍｏは前記Ｍ
6 Ｃから排出される。この効果は、Ｓｉ含有率０．５％
以上で顕著となる。しかし、Ｓｉ含有率が高すぎると、
Ｓｉを多く含むＭ6 Ｃを一次炭化物として多量に晶出す
るようになり、鋼の熱間加工性が損われる。そのため、
Ｓｉ含有率の上限は４．０％とする。Si: 0.5% to 4.0%, Si / Weq ≦ 0.2 Si is M 6 generated by decomposition of M 2 C during hot working.
The carbide-forming elements W and Mo in C, which are substituted by the carbide-forming elements W and Mo, are introduced into M 6 C, and are replaced by Si,
Emitted from 6 C. This effect is due to the Si content of 0.5%
The above becomes remarkable. However, if the Si content is too high,
M 6 C containing a large amount of Si is crystallized as a primary carbide, and the hot workability of steel is impaired. for that reason,
The upper limit of the Si content is 4.0%.
【００１１】前記Ｍ6 Ｃ中のＷ、Ｍｏに置換しうるＳｉ
量はＷ、Ｍｏ量に依存する。そのため、Ｓｉ含有率は、
Ｗ＋２Ｍｏ＝Ｗeqとするとき重量比でＳｉ／Ｗeq≦０．
２とするのが好ましい。Ｓｉ／Ｗeqが０．２を超えて大
きな値となると、Ｓｉが過剰となって、一次炭化物とし
て晶出するＭ6 Ｃの量を増加し、鋼の熱間加工性を損
う。Si which can replace W and Mo in M 6 C
The amount depends on the W and Mo amounts. Therefore, the Si content is
When W + 2Mo = Weq, the weight ratio is Si / Weq ≦ 0.
It is preferably 2. When Si / Weq exceeds 0.2 and becomes a large value, Si becomes excessive and the amount of M 6 C crystallized as a primary carbide is increased to impair the hot workability of steel.
【００１２】上記のようにＳｉ含有率を制限することに
よって、鋳造凝固時には比較的炭化物量が少なく、熱間
加工後に多量の炭化物を含有する高速度鋼をうることが
できる。 Ｍｏ：３．０〜１０．０％、Ｗ：２．０〜８．０％、か
つ１０％≦Ｗeq（＝Ｗ＋２Ｍｏ）≦２２％ ＭｏおよびＷは、いずれも炭化物を形成して鋼の耐摩耗
性を向上する元素である。顕著な耐摩耗性の向上効果を
得るために、ＭｏおよびＷ単独にはそれぞれ３．０％以
上および２．０％以上で、かつＷ＋２Ｍｏとしては１０
％以上を必要とする。しかし、これらの元素の含有率が
高すぎると鋼の熱間加工性が損われるので、Ｍｏおよび
Ｗ含有率の上限をそれぞれ単独には１０．０％および
８．０％で、かつＷ＋２Ｍｏとして２２％とする。By limiting the Si content as described above, it is possible to obtain a high-speed steel containing a relatively small amount of carbide during solidification by casting and containing a large amount of carbide after hot working. Mo: 3.0 to 10.0%, W: 2.0 to 8.0%, and 10% ≤ Weq (= W + 2Mo) ≤ 22% Mo and W both form carbides and wear resistance of steel. It is an element that improves the property. In order to obtain a remarkable effect of improving wear resistance, Mo and W alone are 3.0% or more and 2.0% or more, respectively, and W + 2Mo is 10% or more.
% Or more is required. However, if the contents of these elements are too high, the hot workability of the steel is impaired. Therefore, the upper limits of Mo and W contents are 10.0% and 8.0%, respectively, and W + 2Mo is 22%. %.
【００１３】Ｖ：１．０〜３．５％ Ｖは、炭化物を形成して鋼の耐摩耗性を向上する元素で
あるから１．０％以上を含有せしめる。しかし、Ｖ含有
率が高すぎると粗大な炭化物を生じて鋼の被削性を損う
ので、Ｖ含有率の上限を３．５％とする。 Ｃｏ：８．０％以下、Ｃｏ≦１０．０−２．５Ｓｉ Ｃｏは、鋼のマトリックス強度を高め耐熱性を向上する
ために添加してもよい。しかし、Ｃｏを過剰に添加して
も前記効果は飽和し、徒にコストを高めるのみである。
また、ＣｏはＭ2 Ｃの晶出量を低減するので、Ｃｏ含有
率の上限は８．０％とし、かつＳｉ含有率との関係にお
いて重量％でＣｏ≦１０．０−２．５Ｓｉの範囲とす
る。V: 1.0 to 3.5% V is an element that forms carbides and improves the wear resistance of steel, so 1.0% or more is contained. However, if the V content is too high, coarse carbides are generated and the machinability of the steel is impaired, so the upper limit of the V content is made 3.5%. Co: 8.0% or less, Co ≦ 10.0-2.5Si Co may be added in order to increase the matrix strength of steel and improve heat resistance. However, even if Co is added excessively, the above effect is saturated and the cost is only increased.
Further, since Co reduces the amount of M 2 C crystallized out, the upper limit of the Co content is 8.0%, and, in relation to the Si content, in the range of Co ≦ 10.0-2.5Si in weight%. And
【００１４】[0014]
【実施例】以下、本発明を実施例に基づいて詳細に説明
する。表１に示す化学組成の鋼を溶製し、それぞれ３０
ｋｇの鋼塊とした。鍛造加熱温度１１５０℃としてこれ
らの鋼塊を熱間鍛造し、直径２２ｍｍの供試材を得た。
実施例はいずれも良好に鍛造することができた。Ｓｉ／
Ｗeqが０．２より大きい比較例２およびＣｏ含有率が１
０−２．５Ｓｉより多い比較例７は熱間鍛造において割
れを生じ、供試材を得ることができなかった。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments. Steel with the chemical composition shown in Table 1 was melted and
A steel ingot of kg was used. These steel ingots were hot forged at a forging heating temperature of 1150 ° C. to obtain a test material having a diameter of 22 mm.
In each of the examples, good forging was possible. Si /
Comparative Example 2 in which Weq is larger than 0.2 and Co content is 1
Comparative Example 7, which contained more than 0-2.5 Si, cracked during hot forging, and the test material could not be obtained.
【００１５】各供試材の横断面について顕微鏡組織を顕
出し、Ｍ6 Ｃ炭化物の面積率を測定した。その結果を表
１に示す。全体的には、Ｗeqの値が増すにつれてＭ6 Ｃ
炭化物の面積率は増加する。同等のＷeqの値をもつ供試
材の群内では、Ｓｉ含有率の高い供試材のＭ6 Ｃ炭化物
面積率が高い。各供試材を焼入れ焼もどししてＨＲＣ６
６．５〜６７．５とし、大越式摩耗試験機を用い、相手
材：Ｓ４５Ｃ（ＨＲＢ２００）、最終荷重：６．３ｋｇ
ｆ、摩耗速度：２．８６ｍ／秒、摩耗距離：２００ｍ、
試験温度：室温の条件として摩耗試験を行った。Ｗeqが
ほぼ等しい各群毎に、比較例の耐摩耗性を１００として
群内の実施例の耐摩耗性との比を求め、これを耐摩耗性
指数として表示した。その結果を表１に示す。比較例に
較べて実施例はいずれも耐摩耗性指数が高く、実施例が
優れた耐摩耗性を持つことを示した。The microscopic structure of the cross section of each test material was revealed and the area ratio of M 6 C carbides was measured. Table 1 shows the results. Overall, M 6 C increases as the value of Weq increases.
The area ratio of carbides increases. Within the group of test materials having the same Weq value, the M 6 C carbide area ratio of the test material having a high Si content is high. HRC6 by quenching and tempering each test material
6.5 to 67.5, using Ogoshi type abrasion tester, mating material: S45C (HRB200), final load: 6.3 kg
f, wear speed: 2.86 m / sec, wear distance: 200 m,
Test temperature: A wear test was conducted under the conditions of room temperature. For each group having approximately the same Weq, the wear resistance of the comparative example was set to 100, and the ratio to the wear resistance of the examples in the group was determined, and this was expressed as a wear resistance index. Table 1 shows the results. As compared with the comparative example, all of the examples have a high wear resistance index, indicating that the examples have excellent wear resistance.
【００１６】[0016]
【表１】 [Table 1]
【００１７】[0017]
【発明の効果】本発明によれば、高速度鋼の鋳造凝固時
に形成される炭化物量を増加することなく、鋼の熱間加
工時において、耐摩耗性向上に有効な炭化物量を増加す
ることができる。これによって優れた熱間加工性と耐摩
耗性とを有する高速度鋼を提供することができる。According to the present invention, it is possible to increase the amount of carbide effective for improving wear resistance during hot working of steel without increasing the amount of carbide formed during solidification by casting of high speed steel. You can This makes it possible to provide a high-speed steel having excellent hot workability and wear resistance.
Claims (4)
からなり、かつＷeq＝Ｗ＋２ＭｏとするときＷeqが重量
％で１０〜２２％であることを特徴とする高速度鋼。1. The chemical composition is% by weight, C: 0.7 to 1.6%, Si: 0.5% to 4.0%, Mn: 1.0% or less, Cr: 3.5 to 5 0.5%, Mo: 3.0 to 10.0%, W: 2.0 to 8.0%, V: 1.0 to 3.5%, and the balance being substantially Fe.
And a Weq of 10 to 22% by weight when Weq = W + 2Mo.
からなり、かつＷeq＝Ｗ＋２ＭｏとするときＷeqが重量
％で１０〜２２％、および重量比でＳｉ／Ｗeq≦０．２
の関係を満たすことを特徴とする高速度鋼。2. The chemical composition is% by weight, C: 0.7 to 1.6%, Si: 0.5% to 4.0%, Mn: 1.0% or less, Cr: 3.5 to 5 0.5%, Mo: 3.0 to 10.0%, W: 2.0 to 8.0%, V: 1.0 to 3.5%, and the balance being substantially Fe.
And when Weq = W + 2Mo, Weq is 10 to 22% by weight, and Si / Weq ≦ 0.2 by weight ratio.
High-speed steel characterized by satisfying the relationship of.
り、かつＷeq＝Ｗ＋２ＭｏとするときＷeqが重量％で１
０〜２２％、および重量％で Ｃｏ≦１０．０−２．５
Ｓｉの関係を満たすことを特徴とする高速度鋼。3. The chemical composition is% by weight, C: 0.7 to 1.6%, Si: 0.5% to 4.0%, Mn: 1.0% or less, Cr: 3.5 to 5 0.5%, Mo: 3.0 to 10.0%, W: 2.0 to 8.0%, V: 1.0 to 3.5%, Co: 8% or less, and the balance substantially. When Fe consists of Fe and Weq = W + 2Mo, Weq is 1 by weight%.
0 to 22%, and wt% Co ≦ 10.0-2.5
A high-speed steel characterized by satisfying the relationship of Si.
り、かつＷeq＝Ｗ＋２ＭｏとするときＷeqが重量％で１
０〜２２％、 重量比でＳｉ／Ｗeq≦０．２、および重量％で Ｃｏ≦
１０．０−２．５Ｓｉの関係を満たすことを特徴とする
高速度鋼。4. The chemical composition is% by weight, C: 0.7 to 1.6%, Si: 0.5% to 4.0%, Mn: 1.0% or less, Cr: 3.5 to 5 0.5%, Mo: 3.0 to 10.0%, W: 2.0 to 8.0%, V: 1.0 to 3.5%, Co: 8% or less, and the balance substantially. When Fe consists of Fe and Weq = W + 2Mo, Weq is 1 by weight%.
0 to 22%, by weight Si / Weq ≦ 0.2, and by weight Co ≦
High-speed steel characterized by satisfying the relationship of 10.0-2.5Si.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1525695A JPH08209297A (en) | 1995-02-01 | 1995-02-01 | High speed steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1525695A JPH08209297A (en) | 1995-02-01 | 1995-02-01 | High speed steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08209297A true JPH08209297A (en) | 1996-08-13 |
Family
ID=11883783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1525695A Pending JPH08209297A (en) | 1995-02-01 | 1995-02-01 | High speed steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08209297A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006128387A1 (en) * | 2005-05-31 | 2006-12-07 | Dalian Rongchuang Technology Development Co., Ltd | High-carbon and silicon-containing ultra-hard super-tough high-speed steel |
| CN103469084A (en) * | 2013-09-22 | 2013-12-25 | 浙江特星标模制造有限公司 | High-tenacity high-wear-resistance high-speed steel, processing technology thereof and cutter manufactured by using technology |
| CN107447165A (en) * | 2017-07-21 | 2017-12-08 | 海盐精斌五金制品有限公司 | AGM59 high-speed steel screw plate and Technology for Heating Processing |
| CN108728745A (en) * | 2018-06-20 | 2018-11-02 | 蒂思特（苏州）模具材料技术应用有限公司 | A kind of novel high speed steel of high tenacity |
-
1995
- 1995-02-01 JP JP1525695A patent/JPH08209297A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006128387A1 (en) * | 2005-05-31 | 2006-12-07 | Dalian Rongchuang Technology Development Co., Ltd | High-carbon and silicon-containing ultra-hard super-tough high-speed steel |
| CN103469084A (en) * | 2013-09-22 | 2013-12-25 | 浙江特星标模制造有限公司 | High-tenacity high-wear-resistance high-speed steel, processing technology thereof and cutter manufactured by using technology |
| CN107447165A (en) * | 2017-07-21 | 2017-12-08 | 海盐精斌五金制品有限公司 | AGM59 high-speed steel screw plate and Technology for Heating Processing |
| CN108728745A (en) * | 2018-06-20 | 2018-11-02 | 蒂思特（苏州）模具材料技术应用有限公司 | A kind of novel high speed steel of high tenacity |
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