摘要:
A cutting tool having coating layers which are formed on the cutting tool substrate made of hard material, and the coating layers are composed of an inner layer of AlTiN, an interlayer of TiN, and an outer layer of Al2O3. The cutting tool is preferably produced by subjecting its substrate to surface-cleaning and surface treating by projection of flexible abrasives before forming the coating layers. The total thickness of the coating layer on a flank of the cutting tool is preferably in the range of 2 to 80 μm, and, further, it is preferable that thicknesses of the inner layer, the interlayer, and the outer layer on the flank are 0.5 to 35 μm, 1.0 to 40 μm, and 0.5 to 5 μm, respectively.
摘要翻译:具有形成在由硬质材料制成的切削工具基板上的涂层的切削工具,涂层由AlTiN的内层,TiN的中间层和Al 2 O 3的外层构成。 切割工具优选通过在形成涂层之前对其基材进行表面清洁和通过弹性研磨剂的突出进行表面处理来制造。 切削刀具的侧面上的涂层的总厚度优选为2〜80μm的范围,此外,优选的是,内层,中间层和侧面的外层的厚度为 0.5〜35μm,1.0〜40μm,0.5〜5μm。
摘要:
A flue gas desulfurization process capable of producing a high purity gypsum and also making equipment employed as minimum as possible is provided, which process comprises the steps of cooling and dedusting flue gas containing SO.sub.x ; contacting the cooled gas with a slurry containing limestone to remove SO.sub.x by absorption and also form CaSO.sub.3 ; controlling the pH of the resulting slurry and then blowing air therein to form gypsum; and separating gypsum from the resulting slurry. As a modification of the above process, the slurry of the above second absorption step is further fed to the above first cooling step where unreacted limestone and SO.sub.x are reacted to form CaSO.sub.3.
摘要:
A cutting tool having coating layers which are formed on the cutting tool substrate made of hard material, and the coating layers are composed of an inner layer of AlTiN, an interlayer of TiN, and an outer layer of Al2O3. The cutting tool is preferably produced by subjecting its substrate to surface-cleaning and surface treating by projection of flexible abrasives before forming the coating layers. The total thickness of the coating layer on a flank of the cutting tool is preferably in the range of 2 to 80 μm, and, further, it is preferable that thicknesses of the inner layer, the interlayer, and the outer layer on the flank are 0.5 to 35 μm, 1.0 to 40 μm, and 0.5 to 5 μm, respectively.
摘要翻译:具有形成在由硬质材料制成的切削工具基板上的涂层的切削工具,涂层由AlTiN的内层,TiN的中间层和Al 2 O 3的外层构成。 切割工具优选通过在形成涂层之前对其基材进行表面清洁和通过弹性研磨剂的突出进行表面处理来制造。 切削刀具的侧面上的涂层的总厚度优选为2〜80μm的范围,此外,优选的是,内层,中间层和外侧的外层的厚度为 0.5〜35μm,1.0〜40μm,0.5〜5μm。
摘要:
Provided is a sintered friction material exhibiting high braking power, and being excellent in stability of braking power at a high temperature. The sintered friction material of the present invention includes a chemical composition containing: by mass %, Fe of 7.5% or more, Cu of 50% or more, graphite of 5 to 15%, molybdenum disulfide of 0.3 to 7%, and silica of 0.5 to 10%, wherein Fe/Cu is 0.15 to 0.40.
摘要:
An object of the present invention is to provide a rotary cutting tool, a method of cutting a billet for manufacturing a seamless pipe, and a method of manufacturing the seamless pipe, which are capable of restraining the occurrence of an outer surface flaw on the seamless pipe.A rotary cutting tool 100 in accordance with the present invention has substantially circular shape and is provided with a plurality of blade parts 1 along the outer peripheral portion thereof. The end face 11 on the downstream side in the direction of rotation of the blade part 1 tilts at an angle θ not smaller than 1 degree and not larger than 10 degrees with respect to the thickness direction Y intersecting at right angles to the direction of rotation X.
摘要:
An imaging position determining method includes: an imaging process and an imaging position determination process. The imaging process includes acquiring images by picking up images in a plurality of predetermined imaging positions by an imaging unit. The imaging position determining process includes: comparing an image picked up by the imaging unit in any of the imaging positions with previously stored images; and determining a current imaging position by using a correlation calculated values obtained between the compared images.
摘要:
In a brake signal converter device for a railway car a first signal conversion circuit is operative in response to a brake signal issued from the control stand of a first car in a form suitable for use by the first car and converts this brake signal to a form suitable for use by a second car and transmits it to the second car, while a first detector senses the brake commands issued at the first car and isolates the first car from these brake commands transmitted to the second car by means of a first switching section. In addition, brake signals issued from the second car are converted by a second signal conversion circuit to a form suitable for use by the first car and are transmitted to the first car, while a second detector senses the brake commands issued from the second car and isolates the second car from these brake commands transmitted to the first car by a second switching section.
摘要:
A flue gas desulfurization process by which gypsum can be recovered; the amount of water used therein is small, the effluent is treated in a closed system, the equipment used is minimized, and no scaling occurs; and an apparatus therefor are provided, the process including the following first process and second process: the first process comprising a cooling step of cooling and dedusting a SO.sub.2 -containing flue gas and removing acidic gases, an absorption step of contacting the cooled gas with a slurry containing limestone and lime to absorb and remove SO.sub.x and form CaSO.sub.3, a pH-adjusting step of adding H.sub.2 SO.sub.4 to the resulting slurry, an oxidation step of blowing an oxygen-containing gas in the pH-adjusted slurry to form gypsum, a step of concentrating the resulting gypsum slurry, a step of adjusting the concentration of the resulting slurry, a step of centrifugally separating gypsum, and a step of treating the effluent discharged from the cooling step, and the second process comprising, in the first process, further feeding the slurry of the absorption step to the cooling step where unreacted limestone is reacted with SO.sub.2 to form CaSO.sub.3 .
摘要:
Sulfur oxides contained in the flue gas from coal-fired boiler are adsorbed by an adsorbent prepared by dry-distilling a portion of fuel coal satisfying at least one of requirements of an ash content lower than 15% by weight and a fixed carbon content of at least 50% by weight, thereby producing semi-coke, and activating the semi-coke by steam, and then the sulfur oxides-adsorbed adsorbent is heated to desorb the adsorbed sulfur oxides at a high concentration. The desorbed sulfur oxides are passed through a bed of semi-coke before the activation to recover the sulfur oxides as elemental sulfur.