Alumina sintered products and process for their production
    1.
    发明授权
    Alumina sintered products and process for their production 失效
    氧化铝烧结产品及其生产工艺

    公开(公告)号:US4331627A

    公开(公告)日:1982-05-25

    申请号:US97626

    申请日:1979-11-27

    CPC分类号: C04B35/111

    摘要: A process for producing an alumina sintered product is disclosed wherein the starting alumina mixture contains about 0.01 to 0.55% by weight of MgO and 0.5 to 5.5% by weight of Y.sub.2 O.sub.3. The process yields a sintered product having a porosity on the order of less than 0.1% by volume and an average crystal grain size of about 2 microns or less and is particularly suitable for use in high speed microfinish cutting.

    摘要翻译: 公开了一种生产氧化铝烧结产品的方法,其中起始氧化铝混合物包含约0.01至0.55重量%的MgO和0.5至5.5重量%的Y 2 O 3。 该方法产生具有小于0.1体积%的孔隙率和约2微米或更小的平均晶粒尺寸的烧结产品,并且特别适合用于高速微精加华切割。

    Sintered ceramic body for cutting tools
    2.
    发明授权
    Sintered ceramic body for cutting tools 失效
    用于切削工具的烧结陶瓷体

    公开(公告)号:US4204873A

    公开(公告)日:1980-05-27

    申请号:US037606

    申请日:1979-05-10

    CPC分类号: B23B27/148 C04B35/117

    摘要: A sintered ceramic body for use in cutting tools which has an average crystal grain size of not more than about 2.mu. and comprises about 60 to 95% by volume of (a) Al.sub.2 O.sub.3 and the remainder being composed of (b) WC, provided that it may contain W.sub.2 C in which case the intensity ratio I.sub.W.sbsb.2.sub.C (101)/I.sub.WC (111) in X-ray diffraction using CuK.alpha. rays is not more than about 0.5, and (c) TiN, the volume ratio of components (b) to (c) being about 5:95 to 95:5.

    摘要翻译: 一种用于切割工具的烧结陶瓷体,其平均晶粒尺寸不大于约2μm,并且包含(a)Al 2 O 3的约60至95体积%,其余由(b)WC组成,条件是 可以含有W2C,在这种情况下,使用CuKα射线的X射线衍射中的强度比IW2C(101)/ IWC(111)不大于约0.5,(c)TiN,成分(b)〜 (c)约为5:95至95:5。

    Manufacturing process for sintered ceramic body for cutting tools
    4.
    发明授权
    Manufacturing process for sintered ceramic body for cutting tools 失效
    烧结陶瓷体用于切割工具的制造工艺

    公开(公告)号:US4518398A

    公开(公告)日:1985-05-21

    申请号:US170164

    申请日:1980-07-18

    摘要: A sintered ceramic body for cutting tools having a residual porosity of not exceeding 0.2% by volume and mean crystal grain size of not exceeding 2.mu. is obtained by sintering a mixture substantially consisting of 70-95% by volume alumina and the balance of titanium nitride and Zr-containing component(s) such as Zr, ZrC and/or ZrN wherein the volumetric ratio of TiN/Zr-containing component(s) ranges 95/5-50/50 under the pressure application of 50-3000 Kg/cm.sup.2. The sintering may be carried out by hot pressing or HIP process.

    摘要翻译: 通过烧结基本上由70-95体积%的氧化铝组成的混合物和余量的氮化钛,可以获得残留孔隙率不超过0.2体积%,平均晶粒尺寸不超过2微米的烧结陶瓷体。 和含Zr组分的Zr,ZrC和/或ZrN,其中TiN / Zr组分的体积比在50-3000Kg / cm2的压力下为95 / 5-50 / 50 。 烧结可以通过热压或HIP工艺进行。

    Method for producing titanium nitride-base sintered alloys
    5.
    发明授权
    Method for producing titanium nitride-base sintered alloys 失效
    氮化钛基烧结合金的制造方法

    公开(公告)号:US4065301A

    公开(公告)日:1977-12-27

    申请号:US635155

    申请日:1975-11-24

    CPC分类号: C22C29/00

    摘要: Titanium nitride-base sintered alloys having high thermal shock resistance and high durability against high speed continuous cutting can be obtained by mixing a specifically limited amount of carbon with a basic powdery raw material mixture composed of TiN, Mo and/or Mo.sub.2 C and an iron family metal, molding the resulting mixture and sintering the molded article. When not more than 50% by weight of the amount of TiN contained in the raw material mixture is replaced by at least one of TiC, WC and TaC, the sintering temperature can be lowered.

    摘要翻译: 通过将特定限度的碳与由TiN,Mo和/或Mo2C组成的碱性粉末原料混合物和铁族族混合,可以获得具有高耐热冲击性和高耐久性的高速连续切削的氮化钛基烧结合金 金属,模制所得混合物并烧结成型制品。 当原料混合物中含有的TiN量不超过50重量%时,TiC,WC和TaC中的至少一种被替代,可以降低烧结温度。

    Sintered ceramics for cutting tools and manufacturing process thereof
    7.
    发明授权
    Sintered ceramics for cutting tools and manufacturing process thereof 失效
    用于切割工具的烧结陶瓷及其制造方法

    公开(公告)号:US4325710A

    公开(公告)日:1982-04-20

    申请号:US129318

    申请日:1980-03-11

    摘要: A sintered ceramics for cutting tools having a relative apparent density of not less than 98% is obtained by sintering a mixture substantially consisting of 80-95% by volume alumina and the balance of titanium nitride and Zr-containing component(s) such as Zr, ZrC and/or ZrN wherein the volumetric ratio of TiN /Zr-containing component(s) ranges 95/5-50/50 in vacuum and/or vacuum inert atmosphere. Although the present invention does not need any application of hot pressing or HIP process, the resultant ceramics has an improved abrasion resistance comparable to those obtained by the latter processes.

    摘要翻译: 具有相对表观密度不低于98%的切削刀具用烧结陶瓷是通过烧结基本上由80-95体积%氧化铝组成的混合物和余量的氮化钛和含Zr组分如Zr ,ZrC和/或ZrN,其中在真空和/或真空惰性气氛中,TiN / Zr组分的体积比为95 / 5-50 / 50。 尽管本发明不需要任何热压或HIP工艺的应用,但所得到的陶瓷具有与通过后者的方法获得的耐磨性相当的改善的耐磨性。

    Tungsten carbide-base sintered alloys and method for production thereof
    8.
    发明授权
    Tungsten carbide-base sintered alloys and method for production thereof 失效
    碳化钨基烧结合金及其制造方法

    公开(公告)号:US4150984A

    公开(公告)日:1979-04-24

    申请号:US833611

    申请日:1977-09-15

    IPC分类号: C22C29/04 B22F3/00 C22C29/00

    CPC分类号: C22C29/04

    摘要: A tungsten carbide-base sintered alloy is disclosed, which has a compact three-phase structure consisted of a grain phase of a metal carbide composed mainly of tungsten carbide, a grain covering layer phase of a complex carbo-nitride of titanium and a metal element composed mainly of tungsten in the metal carbide, and a bonding phase composed mainly of nickel and which exhibits very high hardness and high-wear-resistance properties.

    摘要翻译: 公开了一种碳化钨基烧结合金,其具有由主要由碳化钨组成的金属碳化物的晶粒相,钛复合碳氮化物的晶粒覆盖层相和金属元素组成的紧凑型三相结构 主要由金属碳化物中的钨构成,以及主要由镍组成的粘结相,其表现出非常高的硬度和高耐磨性。

    CO2 recovery device
    10.
    发明授权
    CO2 recovery device 有权
    CO2回收装置

    公开(公告)号:US09399189B2

    公开(公告)日:2016-07-26

    申请号:US14004708

    申请日:2012-04-11

    IPC分类号: B01D53/14

    摘要: A CO2 recovery device includes a cooling tower including a cooling unit for bringing the flue gas, which contains CO2, into contact with water so as to cool flue gas; a CO2-absorbing unit for bringing the flue gas into contact with a CO2 absorbent (lean solution) so as to remove CO2 from flue gas; and a regenerator including an absorbent regenerating unit for releasing CO2 from a rich solution so as to regenerate the CO2 absorbent. The CO2-absorbing unit includes: a cocurrent flow CO2-absorbing unit provided in a cocurrent flow CO2 absorber, for bringing the flue gas into contact with the CO2 absorbent in a cocurrent flow so as to remove CO2 from flue gas and a countercurrent CO2-absorbing unit provided in a CO2 absorber, for bringing the flue gas into contact with the CO2 absorbent in a countercurrent flow so as to remove CO2 from flue gas.

    摘要翻译: CO 2回收装置包括:冷却塔,其包括用于使含有CO 2的烟道气与水接触以冷却烟道气的冷却单元; 用于使烟道气与CO 2吸收剂(贫溶液)接触以便从烟道气中除去CO 2的CO 2吸收单元; 以及再生器,其包括用于从富溶液中释放CO 2以便再生CO 2吸收剂的吸收剂再生单元。 二氧化碳吸收单元包括:并流CO2吸收单元,其设置在并流CO2吸收器中,用于使烟道气与CO 2吸收剂以并流方式接触,以便从烟气中除去CO 2和逆流CO2- 提供在CO 2吸收器中的吸收单元,用于使烟气以逆流流动与CO 2吸收剂接触,以便从烟道气中除去CO 2。