摘要:
A new surface finishing process for stainless steel where beautiful, bright and milky white coloured surface is obtainable even for such grades as high carbon containing 13 chromium steel and high sulfur containing free cutting stainless steel is disclosed. After removing the surface scale, (1) immerse the stainless steel into the 1st treating solution containing nitric acid: 5–40 g/l, hydrofluoric acid: 2–10 g/l and Fe(III) ion: 15–40 g/l for 5–180 sec., then rinse in water, (2) and successesively immerse into the 2nd treating solution containing nitric acid: 120–250 g/l, Fe(III) ion: 15–40 g/l for 30–300 sec., then rinse in water.
摘要:
A new surface finishing process for stainless steel where beautiful, bright and milky white coloured surface is obtainable even for such grades as high carbon containing 13 chromium steel and high sulfur containing free cutting stainless steel is disclosed. After removing the surface scale, (1) immerse the stainless steel into the 1st treating solution containing nitric acid: 5-40 g/l, hydrofluoric acid: 2-10 g/l and Fe(III) ion: 15-40 g/l for 5-180 sec., then rinse in water, (2) and successesively immerse into the 2nd treating solution containing nitric acid: 120-250 g/l, Fe(III) ion: 15-40 g/l for 30-300 sec., then rinse in water.
摘要:
A refrigerant compressor includes a sealed case, which contains a compression mechanism, a motor part, and an oil reservoir formed in a lower portion. An oil supply pipe links the oil reservoir and a suction side of the compression mechanism and introduces oil in the oil reservoir to the suction side. The amount of oil supply provided to the suction side is adjusted by detecting the rotational speed of the motor part, such that the amount of oil supply provided to the suction side of the oil supply pipe decreases as the rotational speed of the motor part increases.
摘要:
According to an embodiment, a semiconductor device includes a first circuit block, a first through-substrate via, and a back surface wiring. The first circuit block is provided on a surface side of a semiconductor substrate. The first through-substrate via is provided along a circumference of the first circuit block so as to separate the first circuit block from other circuit blocks. The first circuit block is provided so as to penetrate the surface of the semiconductor substrate. The first circuit block is isolated from the surroundings. The first circuit block has conductivity. The back surface wiring is provided on the back surface side of the semiconductor substrate. The back surface wiring is connected to the first through-substrate via. The back surface wiring connects the first through-substrate via to a power supply terminal or a shield potential terminal.
摘要:
In an airbag, an external wall composed of a flexible woven cloth is adhered and configured by extending a thick thread base cloth and a fine thread base cloth with threads of different thicknesses while performing heat pressing with a coating layer interposed between the thick thread base cloth and the fine thread base cloth. The coating layer is formed by applying a coating agent that forms the coating layer on the thick thread base cloth side in advance.
摘要:
An improved hydroxynitrile lyase characterized by having a mutation of substitution of at least one amino acid residue in the amino acid sequence of a wild-type hydroxynitrile lyase with another amino acid and by its hydroxynitrile lyase activity per transformant being higher than the hydroxynitrile lyase activity per transformant into which the wild-type hydroxynitrile lyase gene is introduced; and a method for producing a hydroxynitrile lyase, comprising expressing the improved hydroxynitrile lyase in a host and recovering the improved hydroxynitrile lyase from the resultant culture.
摘要:
When the relation of battery temperature Tb1>battery temperature Tb2 is satisfied, a temperature increase request for a power storage unit becomes relatively large. Therefore, a target power value P2* for the power storage unit is determined with priority. The target power value P2* is calculated by multiplying the required power value Ps* by a distribution ratio Pr2 (0.5≦distribution ratio Pr2≦1.0) determined in accordance with temperature deviation between battery temperature Tb1 and battery temperature Tb2. The target power value P1* is determined by subtracting the target power value P2* from the required power value Ps*.
摘要:
When the relation of battery temperature Tb1>battery temperature Tb2 is satisfied, a temperature increase request for a power storage unit becomes relatively large. Therefore, a target power value P2* for the power storage unit is determined with priority. The target power value P2* is calculated by multiplying the required power value Ps* by a distribution ratio Pr2 (0.5≦distribution ratio Pr2≦1.0) determined in accordance with temperature deviation between battery temperature Tb1 and battery temperature Tb2. The target power value P1* is determined by subtracting the target power value P2* from the required power value Ps*.
摘要:
A welding control apparatus according to the present invention includes an integrator for starting calculation of a voltage error integral value Sv2, expressed by a formula (1) given below, from a time when a first pulse period ends and a second pulse period starts in a pulse cycle, based on various data of information regarding a gradient Ks of an external characteristic of a welding power supply and a welding current setting value Is2 and a welding voltage setting value Vs2 both in a second pulse period, which are preset as parameters in the formula (1), as well as on an instantaneous value Io2 of a welding current and an instantaneous value Vo2 of a welding voltage both detected in the second pulse period, a comparator for comparatively determining whether a value of the voltage error integral value Sv2 provided as the calculation result has become 0, and a waveform generator for, per pulse cycle, terminating the relevant pulse cycle and starting a next pulse cycle at a time when the value of the voltage error integral value Sv2 has become 0, whereby a variation in an arc length caused by disturbances is precisely suppressed in pulse arc welding of consumed electrode type: Sv2=∫{Ks(Io2−Is2)+Vs2−Vo2}dt (1)
摘要:
When power storage units (10) and (20) are both in a normal condition, system relays (SMR1) and (SMR2) are maintained in an ON state. A converter (18) performs a voltage conversion operation in accordance with a voltage control mode (boost), and a converter (28) performs a boost operation in accordance with an electric power control mode. If some kind of fault condition occurs in the power storage unit (10) and the system relay (SMR1) is driven to an OFF state, the converters (18) and (28) stop the voltage conversion operation and maintain an electrically conducting state between the power storage units (10) and (20) and a main positive bus (MPL), a main negative bus (MNL).