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公开(公告)号：US3924457A
公开(公告)日：1975-12-09
申请号：US45594174
申请日：1974-03-28
发明人： OSHIMA YUJIRO , KATAOKA MASAO , TUTUI OSAMU , SHIBAYAMA NOBORU , OHTUKA MASAYOSHI , OZAKI SHIGEHITO
IPC分类号： F02B77/08 , F01N3/00 , F02B75/02 , F02P17/12 , G01L9/00 , G01L9/06 , G01L23/22 , G01L23/24 , G01M15/04 , G01M15/10 , G01M15/00
CPC分类号： G01M15/106 , F02B2075/027 , G01L23/24 , G01M15/11
摘要： A misfire detecting device for an internal combustion engine includes an exhaust gas introducing tube which comprises tube means having openings at both ends thereof, one opening thereof being provided at a portion adjacent to an exhaust port in an exhaust passage in order to introduce the exhaust gas from a combustion chamber of the internal combustion engine which is of the piston type and the other opening thereof being provided at an exterior portion of the exhaust passage. A pressure transducer having a pressure sensing part is connected to the said other opening of the exhaust gas introducing tube, thereby converting a pressure fluctuation of the exhaust gas introduced by said exhaust gas introducing tube to an electrical signal. A signal processing circuit electrically connected to said pressure transducer detects a predetermined signal from said electrical signal of said pressure transducer. Thus the misfire detecting device converts a flow fluctuation of the exhaust gas in the exhaust passage to an electrical signal with said pressure transducer, detects a portion of the pressure fluctuation based on a misfire of the internal combustion engine from said electrical signal and thereby detects a misfire of the internal combustion engine.
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公开(公告)号：US3904403A
公开(公告)日：1975-09-09
申请号：US42197173
申请日：1973-12-05
CPC分类号： C22C19/007
摘要： A nickel base heat resisting alloy having high tensile strength and excellent oxidation resistance at high temperatures in the range of 1,000*-1,200*C and toughness at room temperature characterized by the alloy comprising 91-99.9 atomic percent of a basic constituent, up to 6 atomic percent silicon, and between 0.1-3 atomic percent of a second or additive constituent consisting of one or more elements selected from a group of elements consisting of titanium, chromium, zirconium, niobium, tantalum and tungsten. The basic constituent comprises nickel, aluminum and molybdenum in the following atomic percents of the basic constituent: nickel 62-83%, aluminum 11-26%, and molybdenum 6-12%. In one embodiment, the silicon comprises 0% and the basic constituent comprises between 97-99.9 atomic percent of the alloy. In the other embodiment, the silicon is in a range of 0.56 atomic percent and the basic constituent is in a range of 9199.4 atomic percent of the alloy. The addition of the silicon improves the oxidation resistance of the alloy when heated to an elevated temperature.
摘要翻译： 一种镍基耐热合金，其具有在1000-2200℃的高温下的高拉伸强度和优异的抗氧化性，而在室温下的韧性是由含有91-99.9原子％的碱性成分的合金表示，最多达6 原子百分比的硅，以及0.1-3原子％的第二种或添加剂成分组成的一种或多种元素，所述元素选自钛，铬，锆，铌，钽和钨组成的一组元素。 基本成分包括以下原子百分比的镍，铝和钼：镍62-83％，铝11-26％，钼6-12％。 在一个实施方案中，硅包含0％，基本成分占合金的97-99.9原子％。 在另一个实施方案中，硅在0.5-6原子百分比的范围内，基本成分在合金的91-99.4原子百分比的范围内。 添加硅可以提高合金在加热到高温时的抗氧化性。
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公开(公告)号：US3903230A
公开(公告)日：1975-09-02
申请号：US31694072
申请日：1972-12-20
发明人： KAMIGAITO OSAMI , OYAMA YOICHI
IPC分类号： C04B35/581 , C04B35/584 , C04B35/597 , C04B35/599 , C04B35/64 , C04B35/10
CPC分类号： C04B35/597
摘要： A method for producing silicon nitride base ceramics products having high heat resistance, high abrasion resistance and low thermal expansion from the mixed powders of silicon nitride and alumina or from the mixed powders of silicon nitride, alumina and aluminum nitride. The method includes heating said mixed powders at a temperature between 1650* and 2000*C under a high pressure or no pressure. During the heating most of the alumina and aluminum nitride are occluded in silicon nitride and said silicon nitride base ceramics products are formed.
摘要翻译： 一种从氮化硅和氧化铝的混合粉末或氮化硅，氧化铝和氮化铝的混合粉末制备具有高耐热性，高耐磨性和低热膨胀的氮化硅基陶瓷产品的方法。 该方法包括在高压或无压力下在1650℃至2000℃的温度下加热所述混合粉末。 在加热期间，大部分氧化铝和氮化铝被吸留在氮化硅中，形成所述氮化硅基陶瓷产品。
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公开(公告)号：US3900429A
公开(公告)日：1975-08-19
申请号：US44002174
申请日：1974-02-06
发明人： KOMATSU NOBORU , KAMIGAITO OSAMI , SUZUKI TAKATOSHI , DOI HARUO , SANO KAZUYA , YAMAMOTO NOBUYUKI , KANDORI TOSHIO , TSUZUKI YUKIKAZU
CPC分类号： B01J23/86 , B01D53/9409 , B01D53/944 , B01D53/9477 , B01D2255/2061 , B01D2255/2063 , B01D2255/20707 , B01D2255/20753 , B01D2255/20761 , B01D2255/20784 , B01J23/755 , Y02A50/2341
摘要： A catalyst for purifying exhaust gases from internal combustion engines and the like which consists essentially of a particulate mixture of nickel particles and copper particles; nickel particles, copper particles and chromium particles; or nickel particles, copper particles, chromium particles and an oxide selected from the group consisting of yttrium oxide, titanium dioxide, lanthanum oxide and mixtures thereof, wherein said particulate mixture is sintered and at least partially oxidized.
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55.发明授权Method for forming a carbide layer of a IV-b group element of the periodic table on the surface of a cemented carbide article 失效在硬质合金制品的表面上形成周期表的IV-b族元素的碳化物层的方法
公开(公告)号：US3885059A
公开(公告)日：1975-05-20
申请号：US46014874
申请日：1974-04-11
CPC分类号： C23C10/24 , C23C22/70 , C23C30/005
摘要： A method for forming a carbide layer of a IV-b group element of the periodic table on the surface of a cemented carbide article in a treating molten bath, comprising preparing a treating molten bath composed of molten boric acid or borate and a IV-b group element dissolved therein and immersing the article in the treating molten bath to deposit the IV-b group element on the surface of the article and to form a carbide layer of the IV-b group element on the surface of the article with the carbon contained in the article. The method of this invention can form easily a smooth and hard carbide layer on the surface of the article. And the formed layer improves greatly the hardness and wear resistance of the cemented carbide article.
摘要翻译： 一种在处理熔池中在硬质合金制品的表面上形成周期表的IV-b族元素的碳化物层的方法，包括制备由熔融硼酸或硼酸盐组成的处理熔融浴和IV-b 将组分溶解在其中并将制品浸入处理熔融浴中以将IV-b族元素沉积在制品的表面上，并在制品的表面上形成含有碳的元素的碳化物层，其中所含的碳含有 在文章中。 本发明的方法可以容易地在制品的表面上形成光滑且硬质的碳化物层。 成形层大大改善了硬质合金制品的硬度和耐磨性。
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56.发明授权Method for forming a carbide layer on the surface of an iron or ferrous alloy article 失效在铁或铁合金制品的表面上形成碳化物层的方法
公开(公告)号：US3874909A
公开(公告)日：1975-04-01
申请号：US31650272
申请日：1972-12-19
发明人： ARAI TOHRU , OBAYASHI MIKIO , ENDO JUNJI
摘要： A method for forming a carbide layer of a metal selected from Ti, Zr, Hf, V, Nb, Ta, Mo and N or mixtures thereof on the surface of an iron or ferrous alloy article in a powdery treating material comprising packing said article in the mixed powders of a tetrafluoroborate and said metal and heating said article within said mixed powders, thereby forming a very hard carbide layer of said metal on the surface of said article. The method of this invention can be carried out without employing a nonoxidation atmosphere and can improve greatly the wear resistance of iron and ferrous alloy articles.
摘要翻译： 一种在粉末处理材料中在铁或铁合金制品的表面上形成选自Ti，Zr，Hf，V，Nb，Ta，Mo和N的金属或其混合物的碳化物层的方法，包括将所述制品包装在 四氟硼酸盐和所述金属的混合粉末，并在所述混合粉末中加热所述制品，从而在所述制品的表面上形成所述金属的非常硬的碳化物层。 本发明的方法可以在不使用非氧化气氛的情况下进行，并且可以大大提高铁和铁合金制品的耐磨性。
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公开(公告)号：US3859085A
公开(公告)日：1975-01-07
申请号：US26932872
申请日：1972-07-06
发明人： KIMURA TAKASHI , MAJIMA AZUSA , HAMAMOTO HIROSHI
CPC分类号： C22C33/0292 , B22F3/14 , C22C33/02
摘要： Iron-base sintered alloys, characterized by high density and good hardness, have been prepared by sintering a particulate material consisting of iron, carbon and metallic carbide at a temperature within the solid-liquid phase range corresponding to the composition ratio of said iron and carbon.
摘要翻译： 通过在对应于所述铁和碳的组成比的固 - 液相范围内的温度下烧结由铁，碳和金属碳化物组成的颗粒材料来制备以高密度和高硬度为特征的铁基烧结合金 。
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公开(公告)号：US3848847A
公开(公告)日：1974-11-19
申请号：US37539073
申请日：1973-07-02
发明人： KOMATSU N , ARAI T , MIZUTANI M
CPC分类号： B22D21/007 , B22C3/00 , Y10T428/31678
摘要： A method of casting aluminum or aluminum alloys characterized by utilizing a mold of ferrous or ferrous alloy members having at least a portion of the mold surface provided with a carbide layer of at least one metal selected from the Group V, Subgroup a of the periodic table. In particular, the metal carbide layer can be a vanadium carbide, a niobium carbide, or a tantalum carbide, which layer is preferably a diffusion layer on the ferrous alloy mold member having a thickness in the range of 2 to 100 microns.
摘要翻译： 一种铸造铝或铝合金的方法，其特征在于利用具有至少一部分模具表面的铁或铁合金构件的模具，所述模具表面设置有选自元素周期表第V族，亚组a中的至少一种金属的至少一种金属 。 特别地，金属碳化物层可以是碳化钒，碳化铌或碳化钽，该层优选是铁基合金模具上的扩散层，其厚度在2至100微米的范围内。
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公开(公告)号：US3845185A
公开(公告)日：1974-10-29
申请号：US34662473
申请日：1973-03-30
发明人： KAMIGAITO O , OYAMA Y
IPC分类号： B22F3/14 , C04B35/111 , C04B35/645 , F27B9/14
CPC分类号： C04B35/645 , B22F3/14 , C04B35/111
摘要： 1. A METHOD OF PRODUCING A PRECISELY DIMENSIONED SINTERED PRODUCT BY PRESSING A REFRACTORY POWDER ALONG ONE DIRECTION, COMPRISING: (1) FORMING A REFRACTORY POWDER INTO A FIRST BODY OF NON-UNIFORM DIMENSION ALONG THE SAID ONE PRESSING DIRECTION AND SIMILAR TO THE DESIRED PRODUCT IN SHAPE BUT ELONGATED AT THE SAME FIXED RATIO FOR ALL SECTIONS OF SAID DESIRED PRODUCT PARALLEL TO SAID PRESSING DIRECTION, (2) COVERING SAID FIRST BODY WITH A LAYER OF A PARTING AGENT HAVING A HIGHER SINTERING TEMPERATURE THAN THAT OF SAID REFRACTORY POWDER, (3) FORMING ANOTHER PORTION OF THE SAID REFRACTORY POWDER INTO AT LEAST ONE SECOND BODY WHICH HAS THE SAME DENSITY AS THAT OF SAID FIRST BODY AND WHICH INTERFITS WITH SAID FIRST BODY TO FORM A COMPOSITE BODY HAVING A UNIFORM THICKNESS IN SAID PRESSING DIRECTION, (4) ASSEMBLING SAID FIRST AND SECOND BODIES IN SAID COMPOSITE BODY, (5) PLACING SAID COMPOSITE BODY WITHIN A DIE, (6) COMPRESSING SAID COMPOSITE BODY WITHIN SAID DIE BY APPLYING PRESSING FORCE ALONG SAID PRESSURE DIRECTION OF SAID FIRST BODY TO PRODUCE A REDUCTION OF THICKNESS AMOUNTING TO SAID FIXED RATIO FOR ALL SECTIONS OF SAID FIRST BODY PARALLEL TO SAID PRESSING DIRECTION WHILE SUBJECTING THE COMPOSITE BODY TO THE SINTERING TEMPERATURE OF SAID REFRACTORY POWDER, ('') REMOVING THE COMPOSITE BODY FROM SAID DIE, AND (8) REMOVING THE RESULTANT SINTERED SECOND BODY FROM THE RESULTANT SINTERED FIRST BODY OF REDUCED THICKNESS IN SAID PRESSING DIRECTION TO YEILD SAID PRECISELY DIMENSIONED SINTERED PRODUCT AS SAID RESULTANT SINTERED FIRST BODY.
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公开(公告)号：US3825416A
公开(公告)日：1974-07-23
申请号：US27039872
申请日：1972-07-10
发明人： MIZUTANI Y , TOZAWA K
摘要： TO % OF EITHER SULPHUR OR SELENIUM, THE BALANCE BEING ESSENTIALLY IRON, AND ALL CONTENTS BEING IN WEIGHT PERCENT. THE ALLOY IS ABRASION RESISTANT AND CAN BE USED OVER A WIDE RANGE OF TEMPERATURES.
A SELF-LUBRICATING IRON BASE ALLOY CONTAINS A TOTAL OF FROM 5 TO 30% OF ONE OR MORE METALS SELECTED FROM THE GROUP GROUP CONSISTING OF TI, ZR, V, NB, TA, MO AND W, AND 0.5
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