摘要:
An active solder is revealed. The active solder includes an active material and a metal substrate. There are two kinds of active materials, titanium together with rare earth elements and magnesium. The metal substrate is composed of a main component and an additive. The main component is tin-zinc alloy and the additive is selected from bismuth, indium, silver, copper or their combinations. The active solder enables targets and backing plates to be joined with each other directly in the atmosphere. The target is ceramic or aluminum with low wetting properties. The bonding temperature of the active solder ranges from 150° C. to 200° C. so that the problem of thermal stress can be avoided.
摘要:
A channel-type mesoporous material with an elliptical pore section has a 2D-rectangular pore arrangement. Besides, the channel-type mesoporous material includes silica and has a unit cell ratio a/b satisfying the inequality of √{square root over (3)}
摘要:
A locking method and device applicable to lock a linearly retractable device includes a locking plate in a first direction and a second direction perpendicular to each other. In the first direction, the locking plate is movable in a release position and a safety position. In the second element, the locking plate is movable in a latched and an unlatched position. When the locking plate is in the safety position, it is unmovable from the latched position to the unlatched position so as to prevent any unintentional force to release the lock.
摘要:
A method of preparing channel-type mesoporous material with an elliptical pore section is described. An alkaline solution containing two surfactants different in the electronic properties of their hydrophilic groups is prepared. A silica precursor is added to form a stack of rod-like micelles each having an elliptical section with the silica precursor between the rod-like micelles. The silica precursor is reacted into a silica framework. The rod-like micelles are removed from the silica framework.
摘要:
A structure of a LED heat dissipating substrate and a method of manufacturing such substrate are provided. Material removing process are mainly performed to make a first conducting board, a second conducting board and each of third conducting boards be disconnected from each other. In addition, positive and negative wires are connected to the first and second conducting boards to power and excite a LED die. Thus, the structure can be curved, have the unlimited length, can be continously produced without the conventional electroplating, etching and water cleaning processes, so that no wastewater is produced and the environment protection object is achieved.
摘要:
A locking method and device applicable to lock a linearly retractable device includes a locking plate in a first direction and a second direction perpendicular to each other. In the first direction, the locking plate is movable in a release position and a safety position. In the second element, the locking plate is movable in a latched and an unlatched position. When the locking plate is in the safety position, it is unmovable from the latched position to the unlatched position so as to prevent any unintentional force to release the lock.