摘要:
A plating bath additive and a plating bath using the said additive are provided, which plating bath contains a hydroxyalkanesulfonic acid and which even when applied to an electronic part such as a semiconductor device does not give rise to a problem such as circuit-to-circuit insulation becoming defective. The plating bath additive contains a hydroxyalkanesulfonic acid as a main component and has an alkali metal content of less than 0.05 mass % relative to the hydroxyalkanesulfonic acid. The plating bath incorporates the said additive therein.
摘要:
The present invention provides a blow molding machine comprising a plurality of pillars 5 set up facing on a seat 4 above a base 3 located above a blow mold 2; a stationary platen 6 provided bridging on the top portions of the pillars 5; a moving cylinder 7 set on both side of the stationary platen 6; and a holding plate 9 of blow-core members, which is connected with a piston rod 7a of the moving cylinder 7, and in which the pillars 5 are inserted vertically movable; and a clamp plate 15 projecting at both ends from the holding plate 9 outwardly, and a clamp block 16, which includes internally a pair of hydraulic cylinders 18 to clamp the clamp plate 15 from both sides with rams when the holding plate 9 is in the lower limit position, which is provided on both sides of the seat 4.
摘要:
A fuel supplying apparatus comprises a fuel supplying nozzle having an ejection pipe for ejecting fuel and a supplying passage for supplying the fuel to the ejection pipe, an opening and closing valve provided in the supply passage, a nozzle lever for opening the opening and closing valve, locking mechanism for locking the opening and closing valve in an open state, negative pressure generating mechanism for generating negative pressure upon supply of the fuel outside through the ejection pipe, lock releasing mechanism for releasing the lock of the locking mechanism by the introduction of the negative pressure generated by the negative pressure generating mechanism, atmosphere introducing mechanism for introducing atmosphere into the lock releasing mechanism to neutralize the negative pressure, solenoid valve for interrupting the introduction of the atmosphere by the atmosphere introducing mechanism when no current is introduced, and allowing the introduction of the atmosphere by the atmosphere introducing mechanism when introduced with current, and detection and current applying switch for detecting the insertion of the ejection pipe inside a fuel intake opening of a vehicle and the like and introduces current to the solenoid valve.
摘要:
Disclosed is a respiration leading system which can leads a living body to respire so that relaxation is effectively induced without any physiological load even if a respiration exercise feedback is not employed. This system comprises a control unit and a sense-stimulating unit. The control unit makes the sense-stimulating unit change the output energy for stimulating a sense of the living body so that the living body is induced to inhale and exhale as a physiological reaction. The energy change is done within the range of a respiration period x(sec) and a parameter y defined as 2 sec
摘要:
An aligning mechanism having stage mechanisms, each of which is composed of a first stage capable of moving in the direction in which a fiber array b advances to and retreats from a waveguide type optical member a, a holding section sustaining member 2 for the fiber array and a second stage 5 capable of moving in the direction perpendicular to the direction in which the fiber array spreads, wherein angle adjusting mechanisms 6 and 7 capable rotating around the rotation axis perpendicular to both the said directions are provided between the first and second stages and the holding section sustaining member and the second stage.One aligning unit can be used for aligning either of two fiber arrays and a waveguide type optical member respectively having orthogonally ground end faces or either of fiber arrays and a waveguide type optical member respectively having obliquely ground end faces, and also allows the angle to be easily changed in response to the angle of the end faces.
摘要:
This invention relates to a process for the production of an alkanesulfionic acid such as isethionic acid with a high purity in a high yield and at a low cost by oxidation of a (hydroxy)alkylmercaptan with hydrogen peroxide characterized in that a whole amount beyond a stoichiometric amount of a solution of hydrogen peroxide having a H.sub.2 O.sub.2 concentration of not less than 50% by weight is charged into a reaction vessel, said mercaptan is continuously fed at a temperature of 50.degree. C. or lower, aging is carried out, distillation with boiling is carried out and then the reaction mixture is contacted with an anion exchanger.
摘要翻译:本发明涉及通过用(过氧化氢)氧化(羟基)烷基硫醇,以高产率和低成本生产高纯度的烷硫磺酸如羟乙磺酸的方法,其特征在于超过化学计量 将H 2 O 2浓度不低于50重量%的过氧化氢溶液的量加入到反应容器中,所述硫醇在50℃以下的温度下连续进料,进行熟化,煮沸蒸馏 然后使反应混合物与阴离子交换剂接触。
摘要:
An apparatus for supplying fluid of predetermined quantity comprises a supplying passage for supplying fluid, an opening and closing valve provided within the supplying passage, mechanism for opening the opening and closing valve, locking mechanism for locking the opening and closing valve in an open state, negative pressure generating mechanism for generating negative pressure upon supply of the fluid outside through the supplying passage, lock releasing mechanism for releasing the lock of the locking mechanism by the introduction of the negative pressure generated by the negative pressure generating mechanism atmosphere introducing mechanism for introducing atmosphere into the lock releasing mechanism to neutralize the negative pressure, solenoid valve for interrupting the atmosphere introduction by the atmosphere introducing mechanism, measuring device for measuring the flow rate of the fluid supplied through the supplying passage, and control signal transmitting device for transmitting and supplying the control signal to the solenoid valve when the measured flow rate of the fluid reaches a predetermined flow srate. The solenoid valve interrupts the atmosphere introduction by the atmosphere introducing mechanism according to the control signal. The lock releasing mechanism closes the opening and closing valve and releases the lock of the locking mechanism by the negative pressure upon interruption of the atmosphere introduction.