摘要:
In order to provide a smoothing press apparatus suitable to be applied to a closed draw type paper machine for allowing the surface of the wet paper to be smoothed and papermaking to be performed in a high speed,[Means for Achieving the Object] the smoothing press apparatus 100 is mounted on a last stage of the press part 11 of the closed draw type paper machine, and includes a smoothing press 17 having a pair of press rolls 23 and 25, a smoothing belt 27 interposed between the smoothing press 17 together with the wet paper W to smooth the surface of the wet paper, and a wet paper conveyer felt 21 for conveying the wet paper W and passing over it to the smoothing belt 27.
摘要:
The present invention is to provide a high-precision sintered cam lobe part which has high dimensional accuracy even when producing a cam lobe having a complicated shape and needs no grinding processing after fabricated while it has high wear resistance and pitting resistance. In order to attain the above object, the high-precision sintered cam lobe part of the present invention is a sintered cam lobe part obtained by subjecting a sintering powder to compression-molding and sintering one time only or two or more times repetitively to make the powder into a predetermined form and by carrying out thermal refining of the resulting body as required, wherein the cam lobe part is made of an iron-based sintered alloy comprising one or both of 0.3 to 5.0% by weight of Ni and 0.2 to 4.0% by weight of Cu, 0.5 to 1.2% by weight of C and unavoidable impurities, which is balanced with Fe, and has a density of 7.3 g/cm3 or more, the hardness of the outer periphery of the cam lobe of 45 HRC or more and the rate of dimensional change from the molded body obtained in the final compressing process to the sintered body obtained in the final sintering process within ±0.5%.
摘要翻译:本发明提供一种高精度烧结凸轮凸部,即使在制造形状复杂的凸轮凸角时也具有高尺寸精度,并且在制造时不需要研磨加工,同时具有高的耐磨性和耐点蚀性。 为了达到上述目的,本发明的高精度烧结凸轮凸部是烧结凸轮凸部,其通过对烧结粉末进行压缩成型和烧结一次,重复一次或两次以上, 粉末成预定形式,并根据需要进行所得体的热精炼,其中凸轮凸角部分由铁基烧结合金制成,其包含0.3至5.0重量%的Ni和0.2至4.0重量%中的一个或两个, 的Cu,0.5〜1.2重量%的C和不可避免的杂质,其与Fe平衡,并且具有7.3g / cm 3以上的密度,外周的硬度 45HRC以上的凸轮凸角和从最终压制工序得到的成型体到在最终烧结工序中得到的烧结体的尺寸变化率在±0.5%以内。
摘要:
This aims to provide a paper making machine belt (a shoe press belt) having excellent wet squeezability but less damages (such as cracks or wear) of the outer periphery of a belt being used. The paper making shoe press belt includes drainage conduits extended in the felt-side surface thereof. The drainage conduits are discontinuous grooves, and are made semi-arcuate on at least one of the belt ends in a belt running direction (an MD direction).
摘要:
The temporary compacting of the powder for use in sintering is carried out, the temporary sintering is carried out, the main compacting is carried out, the main sintering is carried out, and the thickness of the radius direction of the base part of the cam before the heat-treatment is set to 3.0 mm or more.
摘要:
A hybrid vehicle control apparatus which is capable of improving the deterioration of the emission performance unique to the hybrid vehicle during idle stop by purifying the exhaust gas remaining in the engine intake pipe, the cylinders, the exhaust pipe and the catalyst. The apparatus comprises two drive sources including an engine operated by fuel combustion and an electric motor/generator operated by electric energy. A residual exhaust gas purifier purifies the gas remaining in the intake pipe, the cylinders, the exhaust pipe and the catalyst of the engine.
摘要:
This aims to provide a paper making machine belt (a shoe press belt) having excellent wet squeezability but less damages (such as cracks or wear) of the outer periphery of a belt being used. The paper making shoe press belt includes drainage conduits extended in the felt-side surface thereof. The drainage conduits are discontinuous grooves, and are made semi-arcuate on at least one of the belt ends in a belt running direction (an MD direction).
摘要:
A wet paper web transfer belt comprises a base body, a wet paper web side layer, and a machine side layer. The wet paper web side layer is formed of a high molecular weight elastic section, and fibers and filler particles are exposed at its surface. The fibers and filler particles are exposed in the form of an island-sea structure comprising islands section where the fibers are exposed, and a sea section where the filler particles are exposed. The fibers and the filler particles, both exposed at the wet paper web side layer, hold water at different times in the papermaking process as the wet paper web moves out of the press part of the papermaking machine.
摘要:
The present invention provides a cam lobe material that is excellent in sliding characteristics, such as wear resistance, scuffing resistance and pitting resistance, and can be advantageously used in engines to which high loads are applied, and a method of manufacturing the cam lobe material. The above-described task is fulfilled by providing a cam lobe material that is formed from an iron-based sintered alloy that contains 0.3 to 5.0 mass % Ni, 0.5 to 1.2 mass % C, 0.02 to 0.3 mass % of at least either of B and P, and incidental impurities as the balance, and has a hardness of a peripheral surface of not less than HRC 50 and a density of not less than 7.5 g/cm3. The iron-based sintered alloy can further contain not more than 2.5 mass % Mo. The above-described task can also be fulfilled by a method of manufacturing the cam lobe material, that a compression molding step and a sintering step are repeated at least twice, the compression molding step involving compression molding iron-based alloy powders prepared so as to provide the composition of the ferrous sintered alloy in a prescribed cam lobe shape, and the sintering step involving sintering the compression molded compact body, and that the sintered body is subjected to quench and tempering treatment.
摘要翻译:本发明提供一种滑动特性优异的凸轮凸起材料,例如耐磨性,抗磨损性和耐点蚀性,并且可以有利地用于施加高负荷的发动机中,以及制造凸轮凸角材料的方法。 通过提供一种由铁基烧结合金形成的凸轮凸缘材料来实现上述任务,该铁基烧结合金含有0.3〜5.0质量%的Ni,0.5〜1.2质量%的C,0.02〜0.3质量%的B 和P,作为余量的偶然杂质,并且具有不小于HRC 50的周边表面的硬度和不小于7.5g / cm 3的密度。 铁基烧结合金还可以含有不超过2.5质量%的Mo。上述任务也可以通过制造凸轮凸起材料的方法来实现,压缩模制步骤和烧结步骤重复至少两次 所述压缩成形工序涉及将所述铁基合金粉末压缩成型,以提供规定的凸轮形状的所述铁质烧结合金的组成,所述烧结工序包括烧结所述压缩成型体,并且所述烧结体为 进行淬火和回火处理。
摘要:
A wet paper web transfer belt comprises a base body, a wet paper web side layer, and a machine side layer. The wet paper web side layer is formed of a high molecular weight elastic section, and fibers and filler particles are exposed at its surface. The fibers and filler particles are exposed in the form of an island-sea structure comprising islands section where the fibers are exposed, and a sea section where the filler particles are exposed. The fibers and the filler particles, both exposed at the wet paper web side layer, hold water at different times in the papermaking process as the wet paper web moves out of the press part of the papermaking machine.
摘要:
If the output of an O2 sensor located downstream of a catalyst deviates from a predetermined range, the air-to-fuel ratio upstream of the catalyst is over-corrected to be a leaner value or a richer value beyond the predetermined purification-efficiency range when the output of the O2 sensor downstream of the catalyst indicates rich or lean, respectively, so that the output of the O sensor downstream of the catalyst returns within a predetermined range as soon as possible.