摘要:
A hydraulic control system comprises a distributor valve including a valve body formed with a first port communicating with a pressure regulator and a second inlet port. The valve body is also formed with a plurality of outlet ports communicating with corresponding frictional elements, respectively. A solenoid operated relief valve is fluidly disposed between the pressure regulator and the second inlet port of the valve body. The distributor valve includes a rotary valve element operatively connected with a stepping motor. The rotary valve element is rotatably disposed within a bore of the valve body and has a plurality of angular positions for connecting the outlet ports to the first inlet port, second inlet port and drainage, selectively. The solenoid of the relief valve is of the proportioning type and is controlled by a control unit. The stepping motor is also controlled by the control unit.
摘要:
A thermoplastic elastomer composition containing 100 wt. parts, in total, of an ethylene-.alpha.-olefin copolymer rubber and a polyolefin resin, and 0.1 to 150 wt. parts of at least one hydrogenated diene polymer having a hydrogenation degree of at least 70% selected from the group consisting of hydrogenated conjugated diene polymers and hydrogenated products of random copolymers comprising conjugated dienes and aromatic vinyl compounds in which the content of the aromatic vinyl compound units is 25 wt. % or less, in which the composition has a complex dynamic viscosity .eta.*(1) of 1.5.times.10.sup.5 poise or less, and a Newtonian viscosity index n of 0.67 or less. This composition provides molded articles which are not whitened on bending, and has good flexibility.
摘要:
A process for producing an extrusion laminated film or sheet comprising a plastic substrate and a resin for extrusion laminating selected from the group consisting of polyethylene resins, polypropylene resins, ethylene-vinylester copolymer resins and ethylene-(metha)acrylate copolymer resins, comprising (A) a surface oxidizing step, (B) an ozone-treating step and (C) a pressurized laminating step as specified using no chemical primer.
摘要:
Provided is a method for producing a thermoplastic elastomer composition excellent in flexibility, mechanical properties and extrusion moldability which comprises directly feeding a particulate olefinic copolymer rubber (A) having a particle shape index .alpha. defined below of 0.1-0.9 and an olefinic plastic (B) to a continuous kneading extruder to carry out melt kneading and then, feeding an organic peroxide to downstream side of said extruder to carry out dynamic crosslinking:.alpha.=D.sub.A /D.sub.Bwherein D.sub.A denotes bulk density of the particulate olefinic copolymer rubber (A) and D.sub.B denotes bulk density of the olefinic plastic (B).
摘要翻译:本发明提供一种柔软性,机械性能和挤出成型性优异的热塑性弹性体组合物的制造方法,其特征在于,直接进料具有下述0.1-0.9以下的粒子形状指数(α)的烯烃系共聚物橡胶(A)和烯烃类塑料( B)到连续捏合挤出机进行熔融捏合,然后将有机过氧化物供入所述挤出机的下游侧进行动态交联:(α)= DA / DB其中DA表示颗粒状烯属共聚物橡胶的堆积密度 A),DB表示烯烃塑料(B)的堆积密度。
摘要:
A quenching depth measuring method is used for measuring the quenching depth in a workpiece and includes the steps of: magnetizing the workpiece by disposing, in the vicinity of the workpiece, a magnetizer equipped with an exciting coil; detecting, through a detection coil, an induced magnetic field generated by the magnetization; measuring the induced magnetic field as the output voltage of the detection coil; and specifying the thickness of the quenched hardened layer of the workpiece on the basis of known electromagnetic characteristic information of an unquenched material and a fully-quenched material and an output voltage value measured by the detection coil, the unquenched material being made of the same material as the constituent material of the workpiece and being a material on which a quenching process is not performed, the fully-quenched material being a material on which the quenching process is performed.
摘要:
A quenching depth measuring method is used for measuring the quenching depth in a workpiece and includes the steps of: magnetizing the workpiece by disposing, in the vicinity of the workpiece, a magnetizer equipped with an exciting coil; detecting, through a detection coil, an induced magnetic field generated by the magnetization; measuring the induced magnetic field as the output voltage of the detection coil; and specifying the thickness of the quenched hardened layer of the workpiece on the basis of known electromagnetic characteristic information of an unquenched material and a fully-quenched material and an output voltage value measured by the detection coil, the unquenched material being made of the same material as the constituent material of the workpiece and being a material on which a quenching process is not performed, the fully-quenched material being a material on which the quenching process is performed.
摘要:
A hydraulic pressure brake device includes a master cylinder, a brake operating member, a master piston, a booster, a first auxiliary piston, a pressure transmitting chamber, a valve device, and a second auxiliary piston. The hydraulic pressure brake device further includes an output member and a rod. The output member is provided in the booster for transmitting the boosting power generated by the booster to the first auxiliary piston when the movement of the master piston is assisted by the booster. The rod is provided in the second auxiliary piston for transmitting the operating force applied to the brake operating member to the valve device and for opening the valve device when the movement of the master piston is not assisted by the booster.
摘要:
An ethylene-.alpha.-olefin copolymer comprising ethylene and an .alpha.-olefin having from 3 to 10 carbon atoms, the copolymer having an .alpha.-olefin content of from 1.0 to 8.0 mol %, a density of from 0.900 to 0.930 g/cm.sup.3, and a melt flow rate of from 0.1 to 100 g/10 min., the programed-temperature thermogram of said copolymer as determined with a differential scanning calorimeter after being completely melted and then gradually cooled showing an endothermic peak (a) in a range of from 75.degree. to 100.degree. C. and an endothermic peak (b) in a range of from 120.degree. to 140.degree. C., with the ratio of an endotherm at the endothermic peak (b), .DELTA.Hb, to an endotherm at the endothermic peak (a), .DELTA.Ha, i.e., .DELTA.Hb/.DELTA.Ha, being from 0.03 to 2.0. The copolymer provides a film exhibiting excellent physical properties required for packaging film.