1251029 玟、發明說明： 【發明所屬之技術領域】 本發明關於一種切屑式工具用的鋼。 【先前技術】 工具的切削部位在從工作物將屑移除主要受到很大的 熱負荷、刮損及勃性與壓力負荷，其中工具材料的應力係 同時作用者。&了在各種不同之負荷輪廓曲線達到工具之 最大使用壽命’故先前技術提到各種合金成份，它們將負 荷輪廓曲線中的尖峰需求列入考慮。 工具的切削性一般藉使用高速鋼而達到，這些高速鋼 有高含量的昂貴合金元素銅及/鎢，濃度可達2〇%重量。 鈉也屬這類元素，並摻到一般的或PM高速鋼，含量為i ·2 〜1 0.0%重量。 如上述，同速鋼可對工具所要求的應力輪廓曲線就組 成而有地達擇，但其缺點為高合金成本及材料成本。如果 此刻基於經濟理由將主合金元素濃度降低，則往往使鋼的 可熱均化性（Vergutbarkeit)、硬度，以及一般上使用性質 急遽變差。 【發明内容】 本發明的目的在消除先前技術的缺點，並提供一種鋼 ，它由於合金技術的措施，因而具有特別適合切屑式工具 的性及高度經濟性。 這種目的係利用一種鋼達成，它含有以下元素（重量％) ·· 00.88 〜1.12 12510291251029 发明, DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a steel for a chip type tool. [Prior Art] The cutting portion of the tool is mainly subjected to a large heat load, scratching, and bulging stress load in the removal of the scrap from the workpiece, wherein the stress of the tool material acts simultaneously. & Achieving the maximum service life of the tool at various load profile curves, so the prior art mentioned various alloy compositions that take into account the peak demand in the load profile. The machinability of the tool is generally achieved by the use of high-speed steel, which has a high content of expensive alloying elements such as copper and/or tungsten, at a concentration of up to 2% by weight. Sodium is also an element of this type and is incorporated into general or PM high speed steel in an amount of from i 2 to 1 0.0% by weight. As mentioned above, the same speed steel can be formed with the required stress profile of the tool, but its disadvantages are high alloy cost and material cost. If the concentration of the main alloying element is lowered for economic reasons at this time, the heat-smoothing property of the steel, the hardness, and the general use property are often deteriorated. SUMMARY OF THE INVENTION The object of the present invention is to eliminate the disadvantages of the prior art and to provide a steel which is particularly suitable for chip-type tools and highly economical due to the measures of alloy technology. This purpose is achieved with a steel which contains the following elements (% by weight) ··00.88~1.12 1251029
Cr = 3.4〜4·5 Μο=2·5 〜3.0 ν = 〇·7 〜1 ·〇 Α1==〇·〇4〜q 1 Ν=〇·〇2〜〇 1 2 其餘為Fe及伴隨元素與雜質元素。 利用本發明達到的優點主要在於：一方面將元素 與V組合濃度比起快速鋼來低得多，另一方面該本發明的0 均化鋼銘與氮含量比起先前技術高，钱達到有利的熱硬 度，特別是南耐磨損抵抗力，而有充分的韌性（zshigket )及壓力負荷性，由本發明的合金製的切屑式工具，由於 昂貴合金元素含量低，故可經濟製造，但對於負荷輪廓曲 線的高度要求都能滿足。 並發現’在由本發明的鋼構成的工具在切屑表面或在 切削緣後方的區域，切屑過程可更有利的達成，且侵蝕 (Auskolkung)情事少得多。其原因在科學上尚找不到解釋 ，但如上述，可用元素A1、N、C與v的增效作用 (Synergie-Effekt)解釋。釩對碳與氮的高親合力在均化 (Vergiitung)時形成最細之均勻分佈的碳化及氮化碳時造成 高度之熱硬度，另一方面可使足量之可反應的鋁存在母質 (Matrix)中，該鋁在工具的刀具區域中在溫度負荷時由於 氧化而开> 成一枯土表面層，就像一促進切屑過程的鍍層。 如事實顯示，在母質中的鋁也促成本發明材料的熱硬度及 回火抵抗性。 1251029 在合金中的_ 但在此情形中， 【實施方式】 部分釩（可達0.45%重量）可被釩取代 碳含量要在濃度限度的了方範圍調整。 式工具的鋼含有一 依本發明一較佳實施例，用於切屑 種或數種以下濃度範圍的元素： 00.93 〜1 .〇7Cr = 3.4~4·5 Μο=2·5 ～3.0 ν = 〇·7 〜1 ·〇Α1==〇·〇4~q 1 Ν=〇·〇2~〇1 2 The rest are Fe and accompanying elements and Impurity element. The advantages achieved by the present invention are mainly in that the concentration of the element and the V is much lower than that of the fast steel on the one hand, and on the other hand, the 0-averaged steel and the nitrogen content of the present invention are higher than the prior art, and the money is favorable. The hot hardness, especially the south resistance to wear, and the sufficient toughness (zshigket) and pressure loadability, the chip-type tool made of the alloy of the invention can be economically manufactured due to the low content of expensive alloying elements, but The height requirements of the load profile can be met. It has been found that in the area of the tool consisting of the steel of the invention on the surface of the chip or behind the cutting edge, the chipping process can be more advantageously achieved and the erosion is much less. The reason for this is not explained in science, but as explained above, it can be explained by the synergistic effect of elements A1, N, C and v (Synergie-Effekt). The high affinity of vanadium for carbon and nitrogen results in a high degree of thermal hardness when forming the finest uniform distribution of carbonization and carbonitride during homogenization. On the other hand, a sufficient amount of reactable aluminum can be present in the parent material. In (Matrix), the aluminum opens in the tool area of the tool due to oxidation during temperature loading. It forms a layer of dry soil, just like a coating that promotes the chipping process. As the facts show, aluminum in the parent material also contributes to the thermal hardness and temper resistance of the inventive materials. 1251029 in the alloy _ but in this case, [embodiment] Part of the vanadium (up to 0.45% by weight) can be replaced by vanadium. The carbon content should be adjusted within the range of the concentration limit. The steel of the tool comprises a component according to a preferred embodiment of the invention for use in a chip or a plurality of concentrations: 00.93 〜1 .〇7
Si = 0.l5 〜〇·42 Μη=0·ΐ5 〜〇·44 Ρ =最多0.03 S = 0.00 1 〜〇·3 Α1 = 0·〇5 〜〇·〇7 Ν=0·03 〜〇· 1 藉著在合金中摻入上述濃度範圍的元素，該工具的性 質輪廓曲線的特別重要的區域還可進一步加大。 如果無氮的比例為0」〜L9(A1/N=〇5〜19)，則本 發明的材料在熱均化狀態或在一道硬化及至少在45〇它及 5〇〇t之間的範圍作至少一次回火後，具有高度的熱硬度 與及韌性，其中在工具上切屑磨損極小。 特別經濟以及在困難的操作中有高使用壽命的方式， 係可將圓鋸用的本發明的鋼（硬度大於63HRC，且宜大於 64HRC)製造。 以下就明本發明一實施例，它只顯示該鋼的組成與一 般使用的材料DIN No· 1.3343比較： 將圓鋸片（具有熱均化的鋸齒，其直徑4〇〇mm )夾緊 在共同軸上’共在切斷裝置中將強韌的金屬棒分成段。 叫029 種合金制的 顯得报有利，且、呂片[泫合金就鋸片的使用壽命而言， 用本發明的合金：：1中用Typ Αι表示]放入-鋸片它係 _ " I 成，用 Vers。L.3 表示。 ㈣直到4錯轴由於磨損而&止，在表2中作豆 結果示於表2， 牡衣/甲忭 其 示·料认 ’、Typ.A1的值用wo0/。表示，此結果顯 •對於切屑致、工μ /、，特別是對於圓鋸，當使用本發明的 材枓4，可達到切削效率。 〔表1〕 ------ ΠΪΓ 〕學組J Cr Γ~ Mo -：_ V W 一 A1 ΧΓ JmAL Vers. L.3 0.91 ~096~ 0.32 "αϊΓ 0.4 ~024~ 0.011 "〇〇Γ 0.012 0009 4.13 4.01 5.21 ~2.78 1.81 ~088~ Λ丄 0082 ΙΜ 0.086 材料 使用時間％ 硬度HRC 切割磨損％ 侵姓％ 切割破損％ TypAl 0 65 - - Vers. L.3 0 64 - - TypAl 30 - 100 100 1〇〇 Vers. L.3 30 - 103 95 1〇〇 TypAl 60 - 100 100 100 Vers. L.3 60 - 107 89 200 TypAl 90 - 100 100 100 Vers. L.3 90 - 106 86 100 【圖式簡單說明】 (一） 圖式部分 (無） (二） 元件代表符號 (無）Si = 0.l5 ~〇·42 Μη=0·ΐ5 〇〇·44 Ρ=up to 0.03 S = 0.00 1 〇·3 Α1 = 0·〇5 〇〇·〇7 Ν=0·03 〇〇· 1 By incorporating an element of the above concentration range into the alloy, a particularly important area of the property profile of the tool can be further increased. If the proportion of nitrogen-free is 0"~L9 (A1/N=〇5~19), the material of the present invention is in a state of heat homogenization or in a hardening and at least between 45 〇 and 5 〇〇t. After at least one tempering, it has a high degree of thermal hardness and toughness, in which the chip wear on the tool is minimal. It is particularly economical and has a high service life in difficult operations, and can be manufactured from the steel of the present invention for circular saws (hardness greater than 63 HRC, and preferably greater than 64 HRC). In the following, an embodiment of the invention is shown, which only shows that the composition of the steel is compared with the commonly used material DIN No. 1.3343: a circular saw blade (with a heat-homogenized serration having a diameter of 4 mm) is clamped together. On the shaft, a tough metal rod is divided into sections in the cutting device. It is advantageous to call 029 kinds of alloys, and the bismuth alloy [in terms of the service life of the saw blade, the alloy of the invention:: 1 is represented by Typ Αι] is put into the saw blade. _ " I Cheng, using Vers. L.3 indicates. (d) The results of the beans in Table 2 are shown in Table 2 until the 4th axis is worn due to wear and tear. The results are shown in Table 2, and the value of Typ.A1 is wo0/. This result indicates that the cutting efficiency can be achieved when using the material 4 of the present invention for chip formation, work μ /, and particularly for a circular saw. [Table 1] ------ ΠΪΓ 〕 Group J Cr Γ~ Mo -:_ VW A1 ΧΓ JmAL Vers. L.3 0.91 ~096~ 0.32 "αϊΓ 0.4 ~024~ 0.011 "〇〇Γ 0.012 0009 4.13 4.01 5.21 ~2.78 1.81 ~088~ Λ丄0082 ΙΜ 0.086 Material usage time % Hardness HRC Cutting wear % Infringement % Cutting damage % TypAl 0 65 - - Vers. L.3 0 64 - - TypAl 30 - 100 100 1〇〇Vers. L.3 30 - 103 95 1〇〇TypAl 60 - 100 100 100 Vers. L.3 60 - 107 89 200 TypAl 90 - 100 100 100 Vers. L.3 90 - 106 86 100 Brief description] (1) Schema part (none) (2) Component symbol (none)