摘要:
The invention relates to a method for processing electronic wastes, characterized that: . a/ grist is prepared from electronic wastes containing metals too, and the grist is heated in a reactor, preferable at 455-465 °C temperature, the vapours of the soldering metals exiting over 200 °C are lead away, precipitated with cooling, the soldering metals are recovered, the gas generated in the reactor is lead into an alkaline quencher, where it is purified, the coal portion of the heating residue remaining on the bottom of the reactor is lead away, and the polymer heating residue is treated with acidic solution, or . b/ the metals are removed from the surface of the surface of the electronic waste to be processed with rubbing-grinding, separation of the copper, nickel and noble metals is carried out with a known method, electrically, this way dischargeable melt is obtained, at higher temperature the lead-containing soldering metals are recovered as secondary melt, the metals are separated, and the light fraction is crushed, the resin is heated in a low temperature reactor, in order to recover the resin, the vapours generated are lead away, cooled, the solidified resin is recovered, the bottom product of the reactor is treated with nitric acid, and the solid residue is separated. . The equipment of the invention is characterized that inside its feeding screw (14) there is a plate lock (13), the central unit of the reactor is the bearing box of the driving engine (15), containing double stuffing box (26, 27, 28 and 29), and the lower part of its stirring mechanics is an anchor stirrer, has dredging shovels (5), on the conoidal frustum shaped bottom of the reactor there is a removal hole, closed by a cone lock (6), and the removal hole continues in a vertical neck (10).
摘要:
The present invention relates to a printed circuit board assembly (10), said printed circuit board assembly comprising: a substrate (100); two or more electronic components which are categorized, wherein each component is secured to the substrate by securing means having a different predetermined thermal-release temperature, depending on which category said component belongs to. The invention furthermore relates to a method of assembling the printed circuit board assembly and a method of disassembling the printed circuit board assembly according to the invention.
摘要:
A charge system for destroying chips on a circuit board is provided. The charge system has a first substrate having a number of recesses formed therein with each of the recesses having a housing disposed therein. A high density charge is disposed within the housing. A number of recesses are formed within the high density charge. A number of low density charges are disposed within each of the recesses formed within the high density charge. A second substrate is located proximate to the first substrate. The low density charge and the high density charge are structured to destroy the second substrate after ignition. A method of destroying chips is also provided.
摘要:
A composite resin molding which comprises a solvent-soluble thermoplastic resin element and a solvent-insoluble thermoplastic resin element. For example, the composite resin molding is a printed wiring board, wherein the solvent-soluble thermoplastic resin element is a substrate and the solvent-insoluble thermoplastic resin element comprises a thin metal film circuit formed on a surface of the substrate and a thermoset resin coating.
摘要:
The disclosure provides an article (6) having a circuit (1) mounted with parts (3) characterized by comprising an electronic part (3) soldered with a lead free solder (2) and having an identification marking indicating no inclusion of lead and an electrical appliance including the same. The present invention also provides a recycling method of wastes of the same. The present invention can offer an article having a cirucit mounted with parts and an electrical appliance including the same both of which facilitate identification whether lead which is poisonous to human body is contained or not.
摘要:
Den Gegenstand dieser Erfindung bildet ein Verfahren zur Aufbereitung elektrischer und elektronischer Bauteile zur Rückgewinnung von Wertstoffen, wie beispielsweise der in Leiterplatten enthaltenen Metalle. Die elektrischen bzw. elektronischen Bauteile werden dabei mechanisch vorzerkleinert und danach mit einer Flüssigkeit vermischt und einer Nassvermahlung (5) unterzogen.
摘要:
A detachment apparatus for detaching at least one component (120) from a circuit board (125) can include a shaft (105) configured to rotate about a central axis, at least one lever (110) having a first end and a second end, the lever being attached to the shaft at the first end, and a hook (115) attached to the second end of the lever. Rotation of the shaft causes the hook to come into contact with the component on the circuit board, and the hook is configured to separate the component from the circuit board.
摘要:
A method is described for making electrically conductive tracks or areas within a material (20). By using as material cellulose (22) or its derivatives; and by locally raising the temperature of a portion of the material, one can trace tracks in a simple, economic and fast way manner.
摘要:
A printed circuit board is provided here, the printed circuit board including a cellulosic polymer, where the cellulosic polymer contains a boronate moiety.