JPS62224740A - Cast iron brake shoe for high-speed vehicle - Google Patents
Cast iron brake shoe for high-speed vehicleInfo
- Publication number
- JPS62224740A JPS62224740A JP6481886A JP6481886A JPS62224740A JP S62224740 A JPS62224740 A JP S62224740A JP 6481886 A JP6481886 A JP 6481886A JP 6481886 A JP6481886 A JP 6481886A JP S62224740 A JPS62224740 A JP S62224740A
- Authority
- JP
- Japan
- Prior art keywords
- cast iron
- brake shoe
- friction
- brake
- coefficient
- 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
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 3
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 239000000470 constituent Substances 0.000 abstract 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910001567 cementite Inorganic materials 0.000 description 12
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 12
- 229910001562 pearlite Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241000951471 Citrus junos Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は高速で走行する鉄道車両を短いブレーキ距離で
停止させるのに適した鋳鉄制輪子に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cast iron brake shoe suitable for stopping a railway vehicle running at high speed in a short braking distance.
現在、鉄道車両用制輪子は鋳鉄制輪子、合成制輪子、焼
結合金制輪子の３穏に大別される。Currently, brake shoes for railway vehicles are broadly classified into three types: cast iron brake shoes, synthetic brake shoes, and sintered alloy brake shoes.
鋳鉄制輪子は古くから使われており、現在は普通鋳鉄側
輪と特殊鋳鉄制輪子０２種に大別できる。Cast iron brake shoes have been used for a long time, and today they can be broadly divided into two types: normal cast iron side wheels and special cast iron brake shoes.
前者は、従来から用いられており、長所としては安価で
、車輪への影響が少ないなどがあるか、−刃型（、耐摩
耗性が悪い、そして摩擦係数が低いなどの欠点がある。The former has been used for a long time, and has advantages such as being inexpensive and having little effect on the wheels, but has disadvantages such as a blade type, poor wear resistance, and low coefficient of friction.
特に近年は、車両の保守経費低減や高速化の要求の中で
普通鋳鉄から他材質への転換が進められて来ている。特
殊鋳鉄は耐摩耗性や摩擦係数を高めるために成分を調整
して、パーライトと片状黒鉛の他にステダイト（Ｆｅ−
Ｆｅ、Ｃ−Ｆ□Ｐ三元共晶）やセメンタイト（ＦｅＩＣ
）を分散析出させたものである。ステダイトはＨｖ ６
００〜７００、セメンタイトは約Ｈｖ １０００でパー
ライトのＨｖ ２００〜３Ｆ１０程度に比較してかなり
硬い相（硬鵞相）である。現在側われている特殊鋳鉄制
輪子は耐摩耗性に関しては普通鋳鉄制輪子に比較して２
〜３倍の寿命を達成している。Particularly in recent years, there has been a shift from ordinary cast iron to other materials in response to demands for lower vehicle maintenance costs and higher speeds. Special cast iron is made of steadite (Fe-
Fe, C-F□P ternary eutectic) and cementite (FeIC
) is dispersed and precipitated. Steadite is Hv 6
Cementite has a Hv of about 1000 and is a considerably harder phase (hard phase) than pearlite, which has an Hv of about 200 to 3F10. Currently available special cast iron brake shoes are 2 times more wear resistant than regular cast iron brake shoes.
~3 times the lifespan has been achieved.
合成制輪子は軽量で耐摩耗性に優れ、また摩擦係数にあ
る程度調整できるなどの長所がある。しかし、湿潤時に
摩擦係数が恢下する傾向があり、また降雪時には車輪と
制輪子の間に雪をかみ込んで摩擦係数がほとんどな（な
る現象を起こすので、それを避けるために、車輪に制輪
子を軽く押伺けてお（耐雪ブレーキ扱いを行うが、その
際制輪子の熱伝導率が低いため車輪の温度上昇が大きく
なり車輪路面に異常摩耗を起させるなどの欠点がある。Synthetic brake shoes are lightweight, have excellent wear resistance, and have the advantage of being able to adjust the coefficient of friction to a certain extent. However, the coefficient of friction tends to decrease when it is wet, and when it snows, snow gets caught between the wheels and the brake pads, causing a phenomenon where the coefficient of friction is almost negligible. The brake shoe can be pushed lightly (it is treated as a snow brake), but the low thermal conductivity of the brake shoe increases the temperature of the wheel, causing abnormal wear on the wheel road surface.
焼結合金製輪子は耐摩耗性、摩擦係ｖＪ＋１すぐれてい
るが、車輪路面を削る傾向があり、また価格が高いなど
の改善の余地がある。Sintered metal wheels have excellent wear resistance and friction coefficient vJ+1, but they tend to scrape the wheel road surface and are expensive, so there is room for improvement.
従って、高速車両用制輪子としては
（１１湿潤条件下でも高い摩擦性能を有する（２）
車輪への悪影響がない
（３） 安価である
等の条件を満たす制輪子の出現が望まれている。Therefore, brake shoes for high-speed vehicles (11) have high friction performance even under wet conditions (2)
There is a desire for a brake shoe that satisfies conditions such as having no adverse effect on wheels (3) and being inexpensive.
以上のような現＃、を踏まえ、湿潤条件下でも摩擦性能
が安定し、車輪への悪影咎が少なく、安価である鋳鉄系
を基不として、高速時の摩擦性炒の向上を主眼に材料の
検討を行った。その結果、重ｆ［％でＣ：３．０〜４．
２％、Ｓｉ ：１．５〜２．５％、Ｍｎ：０．７〜１．
５％、Ｐ：１．０〜２．５％、Ｓ：＜０．１５％％Ｃｒ
：１．Ｏ〜２．５％、Ｃｕ ： ０．５−１．５％を含
有し、これに必要に応じて、Ｍｎ：０．１〜０．７％、
Ｎｉ：０．１へ０．７％、Ｔｉ：Ｏｅｌ〜０．７％の一
部または全部を加えた、残部Ｆｅからなる鋳鉄で製造す
る高速１両用鋳鉄側輪子を提供するものである。Based on the above-mentioned current conditions, we focused on improving friction properties at high speeds, based on cast iron, which has stable friction performance even under wet conditions, has little negative impact on wheels, and is inexpensive. Materials were examined. As a result, the weight f [C in %: 3.0-4.
2%, Si: 1.5-2.5%, Mn: 0.7-1.
5%, P: 1.0-2.5%, S: <0.15%%Cr
:1. O ~ 2.5%, Cu: 0.5-1.5%, and if necessary, Mn: 0.1-0.7%,
The present invention provides a high-speed single-wheel cast iron side wheel made of cast iron made of Ni: 0.1 to which 0.7% and Ti: Oel to 0.7% are partially or wholly added, the balance being Fe.
制輪子としての摩擦性能や耐摩耗性を改善するためには
鋳鉄の金属組織としてステダイ）（Ｆｅ−Ｆ、Ｃ−Ｆｅ
、Ｐ三元共晶）やセメンタイト（Ｆ、Ｃ）等の硬い相（
硬質相〕をパーライト中に分散させることが有効である
。In order to improve the friction performance and wear resistance of brake shoes, the metal structure of cast iron is
, P ternary eutectic) and hard phases such as cementite (F, C) (
It is effective to disperse the hard phase] in pearlite.
特にステダイトはｌｊ！擦係数の向上に効果があり、そ
の効果を高速域まで維持させるためには、その量を増加
させると良い。２テダイトはＰの添加により析出し、ま
たＰ添加量を増やすことにより、その析出量も増加する
傾向が見られる。ただしＰ量のみを増加させ、硬質相と
してステダイトだけを析出させた鋳鉄制輪子の場合、高
速からプレー態も各ブレーキ回ごとに異なり、不安定な
挙動を示す。さらに、制輪子の押付荷重を上げた場合に
は、摩擦係数が像下するため、押付荷重の増加がそのま
まブレーキ距離の短縮にはつながらない。Especially Steadite is lj! It is effective in improving the coefficient of friction, and in order to maintain this effect up to high speeds, it is better to increase its amount. 2-tedite is precipitated by the addition of P, and there is a tendency for the amount of precipitate to increase as the amount of P added increases. However, in the case of a cast iron brake shoe in which only the amount of P is increased and only steadite is precipitated as a hard phase, the play state changes from high speed to each braking cycle and exhibits unstable behavior. Furthermore, when the pressing load of the brake shoe is increased, the coefficient of friction decreases, so an increase in the pressing load does not directly lead to a reduction in the braking distance.
一方、セメンタイトは摩擦係数の向上には、はとんど効
果は見られないが、耐摩耗性の向上にはステダイトより
も大きな効果を示し、また制輪子押付力の増加に対する
摩擦性能の安定性も良い。On the other hand, although cementite is not very effective in improving the coefficient of friction, it is more effective than steadite in improving wear resistance, and it also improves the stability of friction performance against increases in brake shoe pressing force. Also good.
セメンタイトを析出させるため釦は、黒鉛化を妨げ、セ
メンタイトを安定化させるＭｎ、 Ｃｒ、Ｂ、 Ｗ等の
元素を添加すればよい。これらの元素の中で、Ｃｒは鋳
鉄全体の耐熱性を向上させる効果もありまた価格や添加
方法も比較的取り扱いやすい。In order to precipitate cementite, elements such as Mn, Cr, B, and W may be added to the button to prevent graphitization and stabilize cementite. Among these elements, Cr has the effect of improving the heat resistance of the entire cast iron, and is relatively easy to handle in terms of price and addition method.
従って、主としてＣｒＫよりセメンタイトの析出を調整
した鋳鉄が実用上優れていると判断されろ。Therefore, it can be concluded that cast iron with controlled cementite precipitation is superior to CrK in practical use.
不発明による鋳鉄の最大の特徴は、高速域から安定して
高い摩擦係数を得ろために、ステダイトとセメンタイト
をそれぞれ相当量析出させることにある。これら硬質相
の導入は鋳鉄全体の平均硬さの向上を招（が、相手車輪
との関係でその上昇を抑制し、適当な範囲内に納める必
要がある。The most important feature of the cast iron produced by the invention is that it precipitates a considerable amount of steadite and cementite in order to obtain a stable and high coefficient of friction even at high speeds. The introduction of these hard phases leads to an increase in the average hardness of the cast iron as a whole (however, it is necessary to suppress this increase and keep it within an appropriate range in relation to the mating wheel.
上記のような金属組織および性質を得ろために規定した
、不発明を４！徴づける各元素の含有量を以下に述べる
。In order to obtain the metal structure and properties as described above, the non-inventiveness is specified as 4! The content of each characteristic element is described below.
Ｐ含有量はｌｌｋ擦係数、特に高速域でのＪｌ擦係数を
高めるために下限を１．０％とし、またステダイト析出
量増加による鋳鉄の脆化や摩擦性能の不安定化を考慮し
て、その上限を２．５％とした。The lower limit of the P content was set at 1.0% in order to increase the ILK coefficient of friction, especially the JL friction coefficient in the high-speed range, and taking into account the embrittlement of cast iron and the instability of friction performance due to an increase in the amount of steadite precipitation. The upper limit was set at 2.5%.
Ｃｒはセメンタイトを析出させ、鋳鉄の耐熱性を向上さ
せることにより、摩擦係数の落ち込みを抑制することを
目的として添加する。ただし、その量が多くなり過ぎろ
と鋳鉄全体が白銑化し、硬さを適当な範囲内に納められ
な（なる。従って、その含有量は１．０〜２．５％とし
た。Cr is added for the purpose of suppressing a drop in the coefficient of friction by precipitating cementite and improving the heat resistance of cast iron. However, if the amount is too large, the entire cast iron will become white, making it impossible to keep the hardness within an appropriate range.Therefore, the content was set at 1.0 to 2.5%.
Ｃｕは黒鉛形状をやや微細化させるとともに、パーライ
ト中へのＰの溶解度を減じ、添加したＰを効率的にステ
ダイト化させる効果を目標とし、０．５〜１．５％含有
させる。Cu is contained in an amount of 0.5 to 1.5% with the aim of making the graphite shape slightly finer, reducing the solubility of P in pearlite, and efficiently converting the added P into steadite.
Ｍｏはややチル化を促すとともに黒鉛を微細化１゜ろ元
素で、今回は高温時の給綿の安定化を目的に、必要に応
じて０．１〜０．７％含有さぜＺ）。Mo is an element that slightly promotes chilling and refines graphite by 1°, and this time it is included in an amount of 0.1 to 0.7% as necessary for the purpose of stabilizing the cotton supply at high temperatures.
ＮｉはＷ、船形状の微細化、組織の均一化、肉厚感度の
減少を目的として溢加する。特に組耘の均一化と肉厚感
度の数少は、製品として外側から中心に至るまで均一な
１ｋｒｉ級とし、性能が使用開グーから終了まで一環し
て安定な状態な侶つために重要である。含有上は必要に
応じて０．１〜０．７％とする。Ni is added to W for the purpose of making the ship shape finer, making the structure more uniform, and reducing the wall thickness sensitivity. In particular, uniformity of construction and thickness sensitivity are important in order to ensure that the product has a uniform grade of 1kri from the outside to the center, and that the performance remains stable from the beginning of use to the end of use. be. The content is set to 0.1 to 0.7% as necessary.
Ｔｉは黒鉛の徴縄分散と鋳鉄の耐熱付向上を目的として
、必ｔｉｃ応じて０．１〜０．７％含有させる。Ti is contained in an amount of 0.1 to 0.7% as necessary for the purpose of dispersing graphite and improving heat resistance of cast iron.
こねもの合金元素はＣｒのセメンタイト析出効果を中心
に、金属組織としては微細均一な黒鉛と、緻密なパーラ
イトを来明し、機械的４！：質に優れ、ｊ＠擦摩耗判性
の良い制輪子となるように調合されろ。The alloying elements of Konemono are centered on the cementite precipitation effect of Cr, and the metal structure is fine and uniform graphite and dense pearlite, which has a mechanical 4! : It should be formulated to be a brake shoe of excellent quality and good abrasion sensitivity.
Ｐとともに鋳鉄の主要成分と言われろＣ，Ｓｉ、ＭｒＬ
Ｓは上記の各元素の特性を最大限に生かし、制輪子とし
て総合的に優れた性能を持つようにそれぞれ調整する。Along with P, C, Si, and MrL are said to be the main components of cast iron.
S is adjusted to make the most of the characteristics of each of the above elements and to have overall excellent performance as a brake shoe.
特にＣ，Ｓｉは制輪子として大切な平均硬さを適当な鉦
ｉ囲内に納めるようＫＣは３．０〜・１．２％、Ｓｉは
１．５〜２．５％とした。In particular, KC and Si were set at 3.0 to 1.2% and Si at 1.5 to 2.5% in order to keep the average hardness, which is important for a brake shoe, within an appropriate range.
Ｍｎはセメンタイトを析出させる元素であるが、ここで
は主としてパーライトを強化する目的で０．７〜ｌ、５
％添加することとした。Mn is an element that precipitates cementite, but here it is used mainly for the purpose of strengthening pearlite.
% was added.
以下、本発明の実施例を表及び図に基づいて具体的Ｋ１
１ｌ？明する。Hereinafter, specific examples of the present invention will be explained based on tables and figures.
1l? I will clarify.
表１は、試作した制輪子および辻較のために試験した制
輪子の化学成分である。ＦＣは従来がら使用されている
晋通緻鉄制柚子で、計はｉ両の速度が１００ ｋｍ／ｈ
以下での使用に適する高すン低合金鋳鉄制給子、■が本
発明によるものである。Table 1 shows the chemical components of the prototype brake shoes and the brake shoes tested for cross comparison. The FC is the conventionally used Jintong iron-made yuzu, and the total speed of the i-car is 100 km/h.
According to the present invention, a high-strength, low-alloy cast iron resistor suitable for use in:
表１ 試験制輪子の化学組成
第１図はＨ８の顕微鏡組織である。片状出船とパーライ
ト、それに白く見えるセメンタイトとステダイトが存在
している硬さはそれぞれ、バーライ） ｌ−１ｖ（０，
３）１１００、ステダイトＨｖ（０，３）６７０程度で
ある−これらの制輪子を実物大慣性形ブレーキ試験機に
かけて、停止ブレーキ試験を行った。試験条件は
車輪直径 ８６０ ｒｒｒｎ
等価輪重 ６５８０ｋｇ
制輪子押付荷重 ２．６７ｔ（両抱）ブレーキ初速ｆ
ｌ ３５，６５，９５，１１０ｋｍ／ｈただし郡に
は１２５ ｋｍ／ｈを追加
試験回数 各速度 ５回
である。Table 1 Chemical composition of test brake shoes Figure 1 shows the microscopic structure of H8. The hardness of schistose and pearlite, as well as the presence of white-looking cementite and steadite, is 1-1v (0,
3) About 1100, Steadite Hv (0,3) 670 - These brake shoes were subjected to a full-scale inertial brake tester to conduct a stopping brake test. The test conditions are: Wheel diameter: 860 rrrn Equivalent wheel load: 6580 kg Brake shoe pressing load: 2.67 t (both sides) Brake initial speed f
l 35, 65, 95, 110 km/h, however, 125 km/h will be added for the group.The number of tests will be 5 times at each speed.
第２図はブレーキ初速度と平均摩擦係数の関係である。Figure 2 shows the relationship between the initial brake speed and the average friction coefficient.
平均摩擦係数μは
により算出した。ここで
Ｗ：等価輪重（ｋｇ）
ｇ：重力加速度（９，８ｍ ／ Ｓ” ）■。＝ブレー
キ初速度（ｍ／Ｓ）
Ｓニブレーキ距離（ｍ）
Ｐ：制輪子の押付荷重（ｋｇ）
である。にに対し、野、羽は平均摩擦係数が全般に高い
。野とＨ斗比較すると、全般にＨ８がやや高く、特に高
ブレーキ初速度時の平均摩擦係数の差が太きくなってい
る。これは羽の速度上昇に伴う摩擦係数の落ち込みが小
さいことによる。The average friction coefficient μ was calculated by. Where, W: Equivalent wheel load (kg) g: Gravitational acceleration (9.8m/S”) ■ = Initial brake speed (m/S) S braking distance (m) P: Pressing load of brake shoes (kg) In contrast, No and Hana have generally higher average friction coefficients. Comparing No and Hto, H8 is generally slightly higher, and the difference in average friction coefficient at high initial braking speeds is particularly large. This is due to the small drop in the coefficient of friction as the speed of the blade increases.
第３図はブレーキ初速度と制輪子の摩耗率の関係である
。制輪子の摩耗率痘は
Ｋより算出した。ここで
ｇ：Ｎ力加速度（９，８ｍ／Ｓ” ）
ΔＷ：停止ブレーキ１回当りの摩耗減量（ｇ）Ｗ：等価
輪重（ｋｇ）
■。＝ブレーキ初速度 （ｍ／Ｓ）
である。ＦＣに対して、Ｈ８およびＮＰ の摩耗率は
かなり少ない。またＪ侶の摩耗率は６％Ｓｉ量を調整す
ることによりさらに低減させろことも可能である。Figure 3 shows the relationship between the initial brake speed and the wear rate of the brake shoes. The wear rate of the brake shoes was calculated from K. Here, g: N force acceleration (9.8 m/S") ΔW: Wear loss per stop brake (g) W: Equivalent wheel load (kg) ■. = Brake initial speed (m/S). Compared to FC, the wear rate of H8 and NP is considerably lower.Furthermore, the wear rate of J2 can be further reduced by adjusting the amount of 6% Si.
以上のように不発明による制輪子は１００ ｋｍ／ｈ以
上で走行する車両を６００ ｍ以内で停止させるのに十
分な摩擦係数を有し、同時に摩耗率も従来品に比較して
１７２程度に抑えることができる。従りて、高速条件で
の使用に適した制輪子である。As described above, the uninvented brake shoe has a friction coefficient sufficient to stop a vehicle traveling at over 100 km/h within 600 m, and at the same time, the wear rate is kept to about 172 compared to conventional products. be able to. Therefore, this brake shoe is suitable for use under high-speed conditions.
第１図は本発明の金属組織を示す顕微鋳３真、第２図は
ブレーキ初速度と平均摩擦係数との関係を示す曲線図、
第３図はブレーキ初速度と摩耗率の関係を示す曲＃図で
ある。
指と代理人 日本［；コ有段ユニー、裁置法ａ２長イぐ
間達三
１００μｍFig. 1 is a three-dimensional microscopic casting diagram showing the metal structure of the present invention, Fig. 2 is a curve diagram showing the relationship between the initial brake speed and the average coefficient of friction,
FIG. 3 is a chart showing the relationship between brake initial speed and wear rate. Finger and agent Japan
Claims (1)
２％、Ｓｉ：１．５〜２．５％、Ｍｎ：０．７〜１．５
％Ｐ：１．０〜２．５％、Ｓ：＜０．１５％、Ｃｒ：１
．０〜２．５％、Ｃｕ：０．５〜１．５％を含有し、こ
れに必要に応じて、Ｍｏ：０．１〜０．７％、Ｎｉ：０
．１〜０．７％、Ｔｉ：０．１〜０．７％の一部または
全部を加えた残部Ｆｅからなる高速車両用鋳鉄制輪子。C: 3.0-4.C as chemical composition (wt%) of cast iron part.
2%, Si: 1.5-2.5%, Mn: 0.7-1.5
%P: 1.0-2.5%, S: <0.15%, Cr: 1
．． 0 to 2.5%, Cu: 0.5 to 1.5%, and if necessary, Mo: 0.1 to 0.7%, Ni: 0
．． A cast iron brake shoe for a high-speed vehicle consisting of Fe: 1% to 0.7%, Ti: 0.1% to 0.7%, and a portion or all of Ti: 0.1% to 0.7%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6481886A JPS62224740A (en) | 1986-03-25 | 1986-03-25 | Cast iron brake shoe for high-speed vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6481886A JPS62224740A (en) | 1986-03-25 | 1986-03-25 | Cast iron brake shoe for high-speed vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62224740A true JPS62224740A (en) | 1987-10-02 |
Family
ID=13269209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6481886A Pending JPS62224740A (en) | 1986-03-25 | 1986-03-25 | Cast iron brake shoe for high-speed vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62224740A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01252755A (en) * | 1988-03-31 | 1989-10-09 | Ueda Brake Kk | Alloy cast iron brake block for vehicle |
| GB2274827A (en) * | 1993-02-03 | 1994-08-10 | Hitachi Ltd | lift brakes |
| CN100465318C (en) * | 2005-06-10 | 2009-03-04 | 上海上大热欣科技发展有限公司 | CrMoCu alloy cast iron continuous casting section bar and manufacturing method thereof |
| JP2010053926A (en) * | 2008-08-27 | 2010-03-11 | Toyota Motor Corp | Disc brake rotor and method of manufacturing the same |
| JP2014226686A (en) * | 2013-05-21 | 2014-12-08 | 株式会社豊田中央研究所 | Joint material, manufacturing method thereof, member joint method, and joint member |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516608A (en) * | 1974-07-05 | 1976-01-20 | Kokusai Denshin Denwa Co Ltd | |
| JPS5651221A (en) * | 1979-10-04 | 1981-05-08 | Makoto Kusakabe | Air cooling and cleaning method and apparatus therefor |
-
1986
- 1986-03-25 JP JP6481886A patent/JPS62224740A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516608A (en) * | 1974-07-05 | 1976-01-20 | Kokusai Denshin Denwa Co Ltd | |
| JPS5651221A (en) * | 1979-10-04 | 1981-05-08 | Makoto Kusakabe | Air cooling and cleaning method and apparatus therefor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01252755A (en) * | 1988-03-31 | 1989-10-09 | Ueda Brake Kk | Alloy cast iron brake block for vehicle |
| GB2274827A (en) * | 1993-02-03 | 1994-08-10 | Hitachi Ltd | lift brakes |
| GB2274827B (en) * | 1993-02-03 | 1996-09-25 | Hitachi Ltd | Emergency stop device for elevator and elevator |
| CN100465318C (en) * | 2005-06-10 | 2009-03-04 | 上海上大热欣科技发展有限公司 | CrMoCu alloy cast iron continuous casting section bar and manufacturing method thereof |
| JP2010053926A (en) * | 2008-08-27 | 2010-03-11 | Toyota Motor Corp | Disc brake rotor and method of manufacturing the same |
| JP2014226686A (en) * | 2013-05-21 | 2014-12-08 | 株式会社豊田中央研究所 | Joint material, manufacturing method thereof, member joint method, and joint member |
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