摘要:
There is disclosed an oxygen heater, which uses a portion of supplied oxygen as auxiliary combustion oxygen, a hot oxygen lance and a pulverized solid fuel burner, both having oxygen heaters. The oxygen heater has a combustion chamber for burning fuel with a portion of the supplied oxygen. An oxygen-jetting opening is disposed around the combustion chamber. The oxygen jetted out of the opening forms a gas curtain between an internal wall of a mixing chamber and a flame produced in the combustion chamber, and is heated by the flame. Both the oxygen lance and the burner includes the above-mentioned oxygen heater.
摘要:
An optical fiber connector terminal includes a sleeve (6); a plurality of collet members (7) disposed around a center within the sleeve to form a receiving aperture (9); and an optical fiber (10) inserted into and bonded to the receiving aperture.
摘要:
A process for preparing dimethyl ether or a mixture of dimethyl ether and methanol including passing a raw gas containing carbon monoxide and hydrogen through a catalyst slurry containing a mixture including (a) a medium oil having as a main component, a branched, saturated aliphatic hydrocarbon having 16 to 50 carbon atoms, 1 to 7 tertiary carbon atoms, 0 quaternary carbon atoms, and 1 to 16 carbon atoms in the branched chains bonded to the tertiary carbon atom; and at least one of the tertiary carbon atoms is bonded to hydrocarbon chains with a chain length having 4 or more of carbon atoms in three directions, (b) a methanol synthesis catalyst; (c) a methanol dehydration catalyst; and (d) a methanol shift catalyst or a methanol dehydration/shift catalyst.
摘要:
An electrophotographic image forming method is disclosed. The method includes electrically charging a photoreceptor, imagewise exposing the photoreceptor so that a latent image is formed on the photoreceptor, supplying a lubricant on a surface of the photoreceptor, and developing the latent image with a toner so that a toner image is formed on the photoreceptor, transferring the toner image and cleaning the photoreceptor, in which the photoreceptor has an electro-conductive substrate, a photosensitive layer and a protective layer containing inorganic particles, a ratio RSm/D50 of an average length of surface roughness profile element in the direction making a right angle with the driving direction of the photoreceptor RSm (μm) to a number-based median diameter of the toner D50 is from 0.4 to 2.0, and a skewness of the surface roughness profile of the photoreceptor in the direction making a right angle with the driving direction of the photoreceptor Rsk is from −3.0 to 0.0.
摘要:
A surface abrading method of an electrophotographic photoreceptor is disclosed, comprising abrading the surface of a photosensitive layer with an abrading member entrained about a backup roll with feeding the abrading member and rotating the photoreceptor, while moving the abrading member parallel to a rotating shaft of the photoreceptor with bringing the abrading member into contact with the photosensitive layer surface, wherein the abrading member comprises a solid body on a backing material, the solid body contains abrasive grains and is provided on the backing material brought into contact with the photosensitive layer surface, and the top face of the solid body exhibits a surface roughness (Ry) of from 4.0 to 8.0 μm.
摘要:
An embodiment may be an organic photoreceptor, which comprises a conductive support; a photosensitive layer provided on the conductive support; and a surface layer containing a binder and a fluorine-containing resin fine particle having a number average primary particle diameter between about 0.02 μm and about 0.20 μm and a crystallinity of less than 90% and a binder resin; wherein a contact angle of the surface layer for water is 90° or more and a dispersion of the contact angle is within ±2.0°.
摘要:
Disclosed is an electrophotographic photoreceptor which comprises a layer on a support, wherein the photoreceptor satisfies a condition represented by Formulas 1 and 2; 0
摘要:
Provided are a developing roller for non-magnetic single component development and a developing method employing the developing, by which toner can be stably conveyed in any external environment, and the stable toner conveyance and charging amount can also be acquired. Also disclosed is a developing roller possessing a spindle and provided around an outer circumference of the spindle, at least an elastic layer (innermost layer), a resistance adjusting layer (intermediate layer) formed on the elastic layer and a surface layer (outermost layer) formed on the resistance adjusting layer, wherein the intermediate layer possesses a layer containing carbon black in a resin, a content of a polycyclic aromatic hydrocarbon in the carbon black is at most 10 ppm, and a volume resistance (Rv) of all the layers provided around the outer circumference of the spindle is 1.0×107-1.0×1013 Ω·cm.
摘要:
A fuel injector includes a tube member and a valve element to slide axially in the tube member. The valve element includes a center portion and a plurality of plate portions projecting radially from the center portion, and each including side surfaces extending axially; and a guide section including an outer portion defining a valve seat, and an inner portion which is located on a radial inner side of the outer portion, and which is formed with at least one injection hole. The guide section is arranged to divert the flow of the fuel conveyed along the plate portions, to a radial inward direction toward the injection hole.
摘要:
An applicator comprising: a reservoir for holding therein an application liquid; a valve assembly disposed in a distal region of the reservoir; a tip disposed in front of the valve assembly; the valve assembly comprising: a valve chamber having a forward opening; a valve body held in the chamber and movable fore and aft; and a biasing member for urging the valve body to be pressed against a circular rim around the opening so as to close it, the valve body having a distal portion in contact with a rear end of the tip, wherein the application liquid stored in the reservoir has a viscosity of 100 mPa·s or less, and the applicator further comprises a follower disposed in the reservoir and in rear of a column of the liquid so as to control flow rate of the liquid flowing out through the opening of the valve chamber, with the follower serving also as a back-flow inhibitor for the application liquid, and wherein a viscous material forming the follower shows the value of at highest ‘2’ as the ratio of viscosity at 5° C. to viscosity at 35° C.