Abstract: The present invention discloses a foundation with a controllable color change and a preparation method thereof. The foundation comprises colorants, wherein the colorants comprise a white colorant and a chromatic colorant; the white colorant and the chromatic colorant are treated by different surface treatment methods; the surface treatment methods comprise a silicone-philic treatment method and an ester-philic silicone-phobic treatment method; and the foundation changes from an original light color to a dark color or from an original dark color to a light color after smearing. The foundation has the advantages of a controllable and fast color changing effect, a high wettability, a strong covering ability, varied colors, good stability, safety and harmlessness, simple production process and the like.

Abstract: A foundation cream/liquid with a controllable color change and a preparation method provides a pre-mixed powder for color-changeable foundation cream/liquid, including titanium dioxide and an inorganic pigment, wherein the titanium dioxide is processed with a methyl triethoxy silanization surface treatment. The inorganic pigment is processed with an octyl triethoxy silanization surface treatment. Different surface treatments are provided to the titanium dioxide and the inorganic pigment (iron oxide) in the foundation cream/liquid, such that surface properties of such two kinds of powder are quite different. A color changing effect of the color-changeable foundation cream/liquid prepared with the pre-mixed powder is controllable and rapid, a covering ability is strong; colors are varied, safety and harmlessness are guaranteed, and preparation is simple.

Abstract: An apparatus used for wave soldering including a nozzle device configured to discharge molten solder to a circuit board near a solder tank, wherein, the nozzle device includes at least one pair of adjacent nozzle openings configured to discharge the molten solder towards the middle between the pair of nozzle openings.

Abstract: A method for preparing a pre-mixed foundation material with a negligible chromatic aberration includes steps of: (1) processing all raw material powder of the pre-mixed foundation material with uniform surface treatments, so as to homogenize surface properties of the raw material powder; (2) after the surface treatments, thoroughly stirring the raw material powder with a high speed for obtaining the pre-mixed foundation material; and after mixing with a high-speed mixer, post-treating the pre-mixed foundation material by a jet milling method, so as to evenly disperse powder of the pre-mixed foundation material; (3) measuring the chromatic aberration; (4) adjusting a color; and (5) monitoring the chromatic aberration, for controlling the chromatic aberration ?Ecmc<0.8. According to the present invention, with help of instruments, the chromatic aberration is digitally and quantitatively measured; varied powder is processed with the uniform surface treatments, so as to enable the uniform surface properties.

Abstract: A foundation cream/liquid with a controllable color change and a preparation method firstly provides a pre-mixed powder for color-changeable foundation cream/liquid, including titanium dioxide and an inorganic pigment, wherein the titanium dioxide is processed with a methyl triethoxy silanization surface treatment; the inorganic pigment is processed with an octyl triethoxy silanization surface treatment. According to the present invention, totally different surface treatments are provided to the titanium dioxide and the inorganic pigment (iron oxide) in the foundation cream/liquid, in such a manner that surface properties of such two kinds of powder are quite different. A color changing effect of the color-changeable foundation cream/liquid prepared with the pre-mixed powder is controllable and rapid; a covering ability is strong; colors are varied; safety and harmlessness are guaranteed; and preparation is simple.

Abstract: A temperature triggering ejector system for lock pin soldering type component is provided. There is provided a temperature triggering ejector system for a lock pin soldering type component, lock pins of said component are fixed in through holes of a circuit board and solder is filled in the through holes after soldering, said system comprising: an ejector that is located at one side of the circuit board that is opposed to said component, and has ejector pins aligned with the through holes of the circuit board and a cylinder that drives the ejector pins; a temperature sensor for sensing the temperature of said solder being heated; a controller for driving the ejector pins of the ejector within a solder melting temperature range based on the temperature sensed by the temperature sensor, to eject the lock pins of said component from said circuit board.

Abstract: An apparatus used for wave soldering including a nozzle device configured to discharge molten solder to a circuit board near a solder tank, wherein, the nozzle device includes at least one pair of adjacent nozzle openings configured to discharge the molten solder towards the middle between the pair of nozzle openings.

Abstract: A temperature triggering ejector system for lock pin soldering type component is provided. There is provided a temperature triggering ejector system for a lock pin soldering type component, lock pins of said component are fixed in through holes of a circuit board and solder is filled in the through holes after soldering, said system comprising: an ejector that is located at one side of the circuit board that is opposed to said component, and has ejector pins aligned with the through holes of the circuit board and a cylinder that drives the ejector pins; a temperature sensor for sensing the temperature of said solder being heated; a controller for driving the ejector pins of the ejector within a solder melting temperature range based on the temperature sensed by the temperature sensor, to eject the lock pins of said component from said circuit board.

Abstract: A method for burning BIOS comprises the steps of: (1) providing a corrupted motherboard with a corrupted BIOS attached; (2) providing a burning device for receiving the corrupted motherboard; (3) providing a BIOS burning card for receiving a burning instruction from the burning device to start burning; (4) the BIOS burning card detecting the corrupted BIOS whether the corrupted BIOS is blank, if the corrupted BIOS being not blank, erasing the corrupted BIOS; (5) the BIOS burning card sending information to the corrupted BIOS to burn the corrupted BIOS; and (6) verifying the corrupted BIOS.

Abstract: A basic input-output system (BIOS) online burning system comprises a burning machine (100), a BIOS online burning card (200), a motherboard (300) and a corrupted BIOS (380) attached on the motherboard. The BIOS online burning card is connected between the burning machine and the corrupted BIOS. The BIOS online burning card comprises a serial communication circuit (220), a first buffer (272) working all the time, a second buffer (274), a third buffer (276), a single chip (260) controlling the working schedule to make the second buffer and the third buffer time-sharing work, a mother BIOS (280) and a connector (290) connected with the corrupted BIOS. The serial communication circuit is connected with the burning machine. The single chip, the first buffer, the mother BIOS and the third buffer together compose a loop. The single chip, the first buffer, the corrupted BIOS and the second buffer together compose another loop.

Abstract: An improved structure of an extendable and detachable USB memory is disclosed and the USB memory is either an externally connected variable capacity memory or a built-in variable capacity memory.