摘要:
A vulcanizable fluorinated rubber composition comprising a fluorinated rubber containing --CH.sub.2 --CF.sub.2 -- units in the polymeric chain, a vulcanizing agent and a vulcanization accelerator as the essential components, characterized in that the vulcanizing agent is a fluorine-containing polyhydroxy aliphatic compound.
摘要:
Rotary drum type heat treatment apparatus having a rotary drum rotatable about a longitudinal axis. The drum has an outlet end and the apparatus includes a cooling section having a movable grate with one end disposed beneath the outlet end of the rotary drum for receiving material from the drum. The drum is provided at the outlet end with a plurality of circumferentially spaced distribution members, each of which has at least one side surface extending longitudinally outwardly beyond the outlet end and inclined with respect to a radial line of the drum for engagement with material being discharged through the outlet end to deflect the same.
摘要:
The disclosed device comprises a supporting disc, a sleeve centrally pendent from the disc, a hollow driven shaft rotatably and axially slidably extending through the disc and sleeve, and a lapping disc fixed to that end of the shaft extending from the sleeve. With the supporting disc disposed upon a valve body including a valve seat to be lapped, the lapping disc can contact the valve seat to fit it during the rotation of the shaft. With the lapping disc raised from the lapped valve seat, a wiper on the disc is actuated to wipe the latter. The seat can be observed through a periscope type observation glass extending through the hollow shaft.
摘要:
An electroluminescent screen comprising a plurality of continuous phosphor stripes running the length of the screen formed on a panel for a color cathode-ray tube by applying film containing photosensitive material onto the panel. A shadow mask is attached to the panel, and the mask and film are irradiated by light from a light source.The shadow mask has on its concave face which faces the light source apertures arranged in substantially parallel rows, the apertures along the length of each of the rows being separated from each other by thin beam-intercepting bridge portions. The area on the shadow mask irradiated by the light is limited to cover only a part of the length of the rows of apertures by a shield plate having an opening for limiting the path of the light.The shield plate is moved so as to move the irradiated area on the shadow mask along the length of the rows of the apertures. The light source has sufficient length in the lengthwise direction of the rows of apertures to produce on the film the bright image of the apertures, each image being expanded to be connected with the adjacent bright images of the apertures on either side along the length of the row. The light source is gradually inclined synchronously with the moving of the irradiated area on the shadow mask, to always be kept substantially parallel to the rows of apertures in the irradiated area.
摘要:
Provided is a therapeutic agent capable of treating allergic rhinitis in a safe, simple, and noninvasive manner substantially without side effects and physical distress to patients. Provided is a therapeutic agent for allergic rhinitis for 5-aminolevulinic acid-based photodynamic therapy (ALA-PDT) comprising 5-aminolevulinic acid (ALA) or a derivative thereof, or a salt of the 5-aminolevulinic acid or the derivative as an active ingredient, and used in ALA-PDT in which light having a wavelength of 400 nm to 700 nm is irradiated; and particularly provided is a therapeutic agent for allergic rhinitis in a locally applied solution form, a water-soluble ointment-dissolved form, a jelly-dissolved form, or the like. The therapeutic agent does not require the conduct of 5-aminolevulinic acid-based photodynamic diagnosis (ALA-PDD) for detecting a site of protoporphyrin IX (PpIX) accumulation radiating light having a wavelength of 610 nm to 650 nm under irradiation of excitation light having a wavelength of 380 nm to 420 nm before ALA-PDT.
摘要:
A steel sheet for containers that has excellent film adhesion qualities, and has a Zr compound film formed thereupon by immersion in or electrolytic treatment with a solution containing Zr ions, F ions, and hydroxylic acid, the Zr compound film being applied in an amount such that the metal Zr content is 0.1-100 mg/m2 and the F content is no more than 0.1 mg/m2.
摘要翻译:一种用于容器的钢板,其具有优异的膜粘合性,并且通过用含有Zr离子,F离子和羟基酸的溶液浸渍或电解处理形成Zr化合物膜,所述Zr化合物膜以这样的量施加 金属Zr含量为0.1-100mg / m 2,F含量不超过0.1mg / m 2。
摘要:
A spring with superior fatigue resistance is provided by decreasing the material cost while simplifying the production process. Disclosed is a spring including: a composition consisting of, by mass %, 0.5 to 0.7% of C, 1.0 to 2.0% of Si, 0.1 to 1.0% of Mn, 0.1 to 1.0% of Cr, not more than 0.035% of P, not more than 0.035% of S, and the balance of Fe and impurities; a structure including not less than 95% of tempered martensitic structure; a compressive residual stress layer formed to a depth of 0.35 mm to D/4, in which D (mm) is a diameter; the compressive residual stress layer having maximum compressive residual stress of 800 to 2000 MPa; a center portion with Vickers hardness of 550 to 700 HV; and a high hardness layer with greater hardness than the center portion.
摘要:
Provided are a Cr-free surface-treated steel sheet that has excellent humid resin adhesion and corrosion resistance and that exhibits no streak-like surface defects, a method for manufacturing such a surface-treated steel sheet, and a resin-covered steel sheet using such a surface-treated steel sheet. A surface-treated steel sheet includes a steel sheet; a corrosion-resistant coating, on at least one side thereof, that is composed of at least one layer selected from a Ni layer, a Sn layer, an Fe—Ni alloy layer, an Fe—Sn alloy layer, and an Fe—Ni—Sn alloy layer; and an adherent coating, on the corrosion-resistant coating, that contains Zr and at least one species selected from P derived from a phosphoric acid and C derived from a phenolic resin in a total mass ratio to Zr of 0.01 to 10.
摘要:
A spring consists of, by weight %, 0.27 to 0.48% of C, 0.01 to 2.2% of Si, 0.30 to 1.0% of Mn, not more than 0.035% of P, not more than 0.035% of S, and the balance of Fe and inevitable impurities. The spring has a nitrogen compound layer and a carbon compound layer at the surface at a total thickness of not more than 2 μm. The spring has a center portion with hardness of 500 to 700 HV in a cross section and has a compressive residual stress layer at a surface layer. The compressive residual stress layer has a thickness of 0.30 mm to D/4, in which D (mm) is a circle-equivalent diameter of the cross section, and has maximum compressive residual stress of 1400 to 2000 MPa.