公开(公告)号：US4434006A

公开(公告)日：1984-02-28

申请号：US149939

申请日：1980-05-14

申请人： Tetsuo Kato ,  Shozo Abeyama ,  Atsuyoshi Kimura ,  Shigenobu Sekiya ,  Sadayuki Nakamura

发明人： Tetsuo Kato ,  Shozo Abeyama ,  Atsuyoshi Kimura ,  Shigenobu Sekiya ,  Sadayuki Nakamura

IPC分类号： C22C38/60 ,  C22C33/00

CPC分类号： C22C38/60

摘要： Mechanical anisotropy of a free cutting steel having excellent machinability can be effectively decreased by controlling inclusions so that the steel may contain inclusion A which softens at a temperature below 1000.degree. C. and inclusion B which has a melting point above 1300.degree. C. but exhibits plasticity at a temperature between 900.degree. and 1300.degree. C., that the inclusion A and the inclusion B may exist in a mutually adhered form, and that the areal percentage of the inclusion A may be at least 1% of areal percentage of the inclusion B.Typical compositions of the inclusion A are: Pb, Bi, MnS--MnTe, SiO.sub.2 --K.sub.2 O, SiO.sub.2 --Na.sub.2 O, SiO.sub.2 --K.sub.2 O--Al.sub.2 O.sub.3, SiO.sub.2 --Na.sub.2 O--Al.sub.2 O.sub.3 and SiO.sub.2 --Na.sub.2 O--CaO--MnO; and typical compositions of the inclusion B are: MnS, MnSe and Mn(S,Se).

摘要翻译： 通过控制夹杂物可以有效地降低切削性能优异的自由切削钢的机械各向异性，使得钢可以含有在低于1000℃的温度下软化的夹杂物A和熔点高于1300℃的夹杂物B，但表现出 在900℃至1300℃的温度下的可塑性，夹杂物A和夹杂物B可以以相互粘合的形式存在，并且夹杂物A的面积百分比可以是包含的面积百分比的至少1％ B.包含物A的典型组成为：Pb，Bi，MnS-MnTe，SiO2-K2O，SiO2-Na2O，SiO2-K2O-Al2O3，SiO2-Na2O-Al2O3和SiO2-Na2O-CaO-MnO; 并且包含B的典型组成是：MnS，MnSe和Mn（S，Se）。

公开(公告)号：US4810465A

公开(公告)日：1989-03-07

申请号：US012527

申请日：1987-02-09

申请人： Atsuyoshi Kimura ,  Sadayuki Nakamura

发明人： Atsuyoshi Kimura ,  Sadayuki Nakamura

IPC分类号： C22C14/00 ,  C22C32/00

CPC分类号： C22C14/00

摘要： A free-cutting Ti alloy is disclosed. The basic alloy composition of this free-cutting Ti alloy essentially consists of at least one of S: 0.001-10%, Se: 0.001-10% and Te: 0.001-10%; REM: 0.01-10%; and one or both of Ca: 0.001-10% and B: 0.005-5%; and the balance substantially Ti. The Ti alloy includes one or more of Ti-S (Se, Te) compounds, Ca-S (Se, Te) compounds, REM-S (Se, Te) compounds and their complex compounds as inclusions to improve machinability. Some optional elements can be added to above basic composition.Also disclosed are methods of producing the above free-cutting Ti alloy and a specific Ti alloy which is a particularly suitable material for connecting rods.

摘要翻译： 公开了一种自由切削Ti合金。 该自由切削Ti合金的基本合金组成基本上由S：0.001-10％，Se：0.001-10％和Te：0.001-10％中的至少一种组成; REM：0.01-10％; Ca：0.001-10％和B：0.005-5％中的一种或两种; 余量基本上为Ti。 Ti合金包括Ti-S（Se，Te）化合物，Ca-S（Se，Te）化合物，REM-S（Se，Te）化合物及其络合物作为夹杂物中的一种或多种，​​以提高机械加工性。 一些可选元素可以添加到上述基本组成。 还公开了制造上述自由切削Ti合金和特定Ti合金的方法，该Ti合金是用于连接棒的特别合适的材料。

公开(公告)号：US4279646A

公开(公告)日：1981-07-21

申请号：US105222

申请日：1979-12-19

申请人： Tetsuo Kato ,  Shozo Abeyama ,  Atsuyoshi Kimura ,  Sadayuki Nakamura

发明人： Tetsuo Kato ,  Shozo Abeyama ,  Atsuyoshi Kimura ,  Sadayuki Nakamura

IPC分类号： C22C38/00 ,  C22C38/60 ,  C22C39/14 ,  C22C39/26

CPC分类号： C22C38/60

摘要： A free cutting steel for machine structural use containing C up to 0.6%, Si up to 2.0%, Mn up to 2.0%, S 0.04 to 0.4%, Te 0.002 to 0.5% and O 0.0010 0.0300%, the balance being substantially Fe exhibits excellent machinability when the MnS-based inclusion is in the form of particles of 5 to 100.mu. long, 1 to 10.mu. wide, wherein the aspect ratio length/width is not larger than 10, and at the density of 20 to 200 particles per 1 mm.sup.2 of the matrix cross section.A free cutting steel for machine structural use containing C up to 0.6%, Si up to 2.0%, Mn up to 2.0%, S 0.04 to 0.4% and Te up to 0.1%, wherein %Te/%S is at least 0.04, O up to 0.003% and N up to 0.0200%, the balance being substantially Fe exhibits improved rolling-contact fatique strength when at least 80% of sulfide-based inclusion particles of 10.mu. long or more have the aspect ratio length/width of 5 or less, and when areal percentage of alumina cluster in the matrix cross section is not higher than 0.5%.

摘要翻译： 一种用于机器结构用途的自由切削钢，其含有C高达0.6％，Si高达2.0％，Mn高达2.0％，S 0.04-0.4％，Te 0.002-0.5％和O 0.0010 0.0300％，余量基本上是Fe 当MnS系夹杂物为5〜100μm，1〜10μm宽的粒子形式时，其纵横比长度/宽度不大于10，密度为20〜200个/ 1 mm2的矩阵横截面。 一种用于机械结构用途的自由切削钢，其含有C高达0.6％，Si高达2.0％，Mn高达2.0％，S 0.04至0.4％，Te至0.1％，其中Te /％S至少为0.04， O至0.003％，N至0.0200％，其余为实质上Fe，当至少80％的10微米或更长的硫化物基夹杂物颗粒的纵横比长度/宽度为5时，表现出改善的滚动接触强度强度 以下，并且当基体截面中氧化铝簇的面积百分比不高于0.5％时。

公开(公告)号：US4806304A

公开(公告)日：1989-02-21

申请号：US744907

申请日：1985-06-17

申请人： Atsuyoshi Kimura ,  Sadayuki Nakamura ,  Makoto Saito

发明人： Atsuyoshi Kimura ,  Sadayuki Nakamura ,  Makoto Saito

IPC分类号： C22C38/60

CPC分类号： C22C38/60

摘要： Sulfur-containing free-cutting steel may have an improved machinability and fewer defects by adding certain amounts of Te, Pb and Bi to prevent elongation of sulfide inclusion particles, and by lowering Al-content to decrease Al.sub.2 O.sub.3 of oxide inclusions or by lowering O-content to decrease large Al.sub.2 O.sub.3 inclusion particles. The free-cutting steel may be produced by continuous casting.

摘要翻译： 通过添加一定量的Te，Pb和Bi，含硫的切削钢可以具有改善的机械加工性和较少的缺陷，以防止硫化物夹杂物的伸长，并且通过降低Al含量以降低氧化物夹杂物的Al 2 O 3或通过降低O- 含量减少大的Al2O3夹杂物颗粒。 可以通过连续铸造来生产切削钢。

公开(公告)号：US4326886A

公开(公告)日：1982-04-27

申请号：US130529

申请日：1980-03-14

申请人： Shozo Abeyama ,  Makoto Saito ,  Atsuyoshi Kimura ,  Sadayuki Nakamura

发明人： Shozo Abeyama ,  Makoto Saito ,  Atsuyoshi Kimura ,  Sadayuki Nakamura

IPC分类号： C21C7/00 ,  C22C33/04 ,  C22C38/00 ,  C22C38/04 ,  C22C38/60

CPC分类号： C22C38/00 ,  C22C38/04

摘要： A steel for cold forging containing C up to 0.6%, Si up to 0.5%, Mn up to 2.0%, S 0.003 to 0.04% and Te up to 0.03%, wherein ratio %Te/%S being at least 0.04, and further, Al up to 0.04%, N up to 0.02% and O up to 0.0030%, and the balance being substantially Fe exhibits both good formability in cold forging and good machinability.The steel may further contain one or more of additional alloying elements selected from the group of Ni, Cr and Mo, the group of V, Nb, Ti, B and Zr, and the group of Pb, Se, Bi and Ca.The steel for cold forging having good machinability is made preferably by agitating molten steel containing adjusted amounts of the alloying elements other than Te, and, if used, members of the Pb group, by introducing non-oxidizing gas thereinto so as to float up and separate large sized particles of non-metallic inclusions, and subsequently adding predetermined amount of Te and other elements.

摘要翻译： 用于冷锻钢，含C至0.6％，Si至多0.5％，Mn至2.0％，S 0.003至0.04％，Te至0.03％，其中Te /％S的比率至少为0.04，进一步 ，Al高达0.04％，N高达0.02％，O高达0.0030％，余量基本上为Fe，在冷锻中具有良好的成形性和良好的机械加工性。 钢可以进一步含有选自Ni，Cr和Mo，V，Nb，Ti，B和Zr组以及Pb，Se，Bi和Ca组中的一种或多种另外的合金元素。 优选通过搅拌含有调节量的Te以外的合金元素的钢水，并且如果使用的话，则通过将非氧化性气体引入以浮起，并且 单独的大尺寸的非金属夹杂物颗粒，然后添加预定量的Te等元素。

公开(公告)号：US5244517A

公开(公告)日：1993-09-14

申请号：US775993

申请日：1991-11-15

申请人： Atsuyoshi Kimura ,  Sachihiro Isogawa ,  Toshihiko Matsubara

发明人： Atsuyoshi Kimura ,  Sachihiro Isogawa ,  Toshihiko Matsubara

IPC分类号： C22C14/00

CPC分类号： C22C14/00

摘要： A titanium alloy is prepared containing 2 to 4% by weight of aluminum, 1.5 to 2.5% by weight of vanadium, 0.20 to 0.45% by weight of a rare earth element (not essential). 0.05 to 0.11% by weight of sulfur (not essential), and titanium substantially for the remainder, the ratio of the rear earth element content to the sulfur content ranging from 3.8 to 4.2. This titanium alloy is rough-formed and hot-forged at a temperature in a .beta. region, and the resulting titanium alloy ingot is processed directly into a titanium alloy component having a desired shape. The titanium alloy component thus manufactured has a satisfactory fatigue strength and is also excellent in machinability, and can be used for connecting rods, valves, retainers, etc. to be incorporated in the engine of an automobile.

摘要翻译： PCT No.PCT / JP91 / 00371 Sec。 371日期1991年11月15日 102（e）1991年11月15日授权PCT 1991年3月19日PCT。制备钛合金，其含有2至4重量％的铝，1.5至2.5重量％的钒，0.20至0.45重量％的 稀土元素（不是必需的）。 0.05〜0.11重量％的硫（不是必须的），钛基本上为余量，后土元素含量与硫含量之比为3.8-4.2。 该钛合金在β区域的温度下粗制形成并热锻，所得的钛合金锭直接加工成具有所需形状的钛合金部件。 这样制造的钛合金部件具有令人满意的疲劳强度，并且机械加工性也优异，可用于连接在汽车发动机中的连杆，阀，保持器等。

公开(公告)号：US4837108A

公开(公告)日：1989-06-06

申请号：US205518

申请日：1988-06-13

申请人： Atsuyoshi Kimura ,  Noriyoshi Shibata

发明人： Atsuyoshi Kimura ,  Noriyoshi Shibata

IPC分类号： C22C38/00 ,  C22C30/00 ,  C22C38/60

CPC分类号： C22C38/60

摘要： An austenitic stainless steel having improved free cutting properties is disclosed, which consists essentially of, on a weight ratio, C.ltoreq.0.2%. Si.ltoreq.2.0%, Mn.ltoreq.2.0%, 7.5%.ltoreq.Cr.ltoreq.30.0%, Ni.ltoreq.40.0%, 0.005%.ltoreq.Bi.ltoreq.0.50%, 0.0003%.ltoreq.B.ltoreq.0.10%, 0.002%.ltoreq.S.ltoreq.0.40%, P.ltoreq.0.02%, N.ltoreq.0.05% and/or O.ltoreq.0.005% and the balance being Fe.

摘要翻译： 公开了具有改善的自由切割性能的奥氏体不锈钢，其基本上由重量比C 0 = 0.2％组成。 Si <2.0％，Mn≤2.0％，7.5％Cr = 30.0％，Ni≤40.0％，0.005％Bi = 0.50％，0.0003％ B

公开(公告)号：US4115111A

公开(公告)日：1978-09-19

申请号：US761954

申请日：1977-01-24

申请人： Tetsuro Itoh ,  Tetsuo Takahashi ,  Atsuyoshi Kimura ,  Seiichi Yamano

发明人： Tetsuro Itoh ,  Tetsuo Takahashi ,  Atsuyoshi Kimura ,  Seiichi Yamano

IPC分类号： C22C38/60

CPC分类号： C22C38/60

摘要： The present invention relates to a free-cutting structural steel for machines characterized by containing a range of 30-100 g/steel ton of oxide inclusions mainly composed of SiO.sub.2 40-60%, CaO 13-30% and Al.sub.2 O.sub.3 25-40%, the balance being less than 20% of other oxides and calcium 0.0002-0.0010%, and at least one of the following elements; lead 0.03-0.30% and sulfur 0.035-0.10%.

摘要翻译： 本发明涉及一种用于机器的自由切割结构钢，其特征在于包含主要由SiO 2 40-60％，CaO 13-30％和Al 2 O 3 25-40％组成的30-100g /钢吨氧化物夹杂物的范围， 余量小于其他氧化物和钙0.0002-0.0010％的钙的20％，以及至少一种以下元素; 铅0.03-0.30％，硫0.035-0.10％。